首页 > 最新文献

2017 Smart Grid Conference (SGC)最新文献

英文 中文
Detection of anomalies in smart meter data: A density-based approach 智能电表数据异常检测:基于密度的方法
Pub Date : 2017-12-20 DOI: 10.1109/SGC.2017.8308852
Froogh Fathnia, Farid Fathnia, D. M. H. Javidi
Smart grid is the next generation of power grid that provides two-way communication, both in sending and receiving information and in power transfer, among its programs, and using advanced technologies and features such as flexibility, ensuring reliability, affordability, reducing carbon footprints, reinforcing global competiveness and etc. Along with such advantages that give the system administrators and electricity customers the convenience and speed to do business, the security of such a system is far more intrusive. One of the important aspects of maintaining security is on the consumption side, because maintaining the privacy of customers is important and neglecting that will cause an irreparable financial and social losses. Hence, in this paper, we tried to use the OPTICS density-based technique to diagnose abnormalities in information and intelligent data of customers instantly and compare the results of different scenarios. To improve the efficiency of the methodology, we use the index called LOF. Which is actually a factor in detecting the unusual nature of the data in the density-based methods, and will do this based on the score given to it. In other words, it is not binary but gives a score based on which the disturbance of the data can be measured. In order to carry out these simulations, we used London's intelligent metering data in January 2013, which was sent to the control center every 30 minutes.
智能电网是在各电网项目之间提供信息收发和电力传输双向通信的新一代电网,具有灵活性、可靠性、可负担性、减少碳足迹、增强全球竞争力等先进技术和特点。除了为系统管理员和电力客户提供方便和快捷的业务优势外,这种系统的安全性更具侵入性。维护安全的一个重要方面是在消费方面,因为维护客户的隐私很重要,忽视这一点将造成不可弥补的经济和社会损失。因此,在本文中,我们尝试使用基于OPTICS密度的技术来即时诊断客户信息和智能数据中的异常,并比较不同场景下的结果。为了提高方法的效率,我们使用了称为LOF的指标。这实际上是在基于密度的方法中检测数据不寻常性质的一个因素,并将根据给出的分数来进行检测。换句话说,它不是二元的,而是给出一个分数,根据这个分数可以测量数据的干扰。为了进行这些模拟,我们使用了2013年1月伦敦的智能计量数据,这些数据每30分钟发送一次到控制中心。
{"title":"Detection of anomalies in smart meter data: A density-based approach","authors":"Froogh Fathnia, Farid Fathnia, D. M. H. Javidi","doi":"10.1109/SGC.2017.8308852","DOIUrl":"https://doi.org/10.1109/SGC.2017.8308852","url":null,"abstract":"Smart grid is the next generation of power grid that provides two-way communication, both in sending and receiving information and in power transfer, among its programs, and using advanced technologies and features such as flexibility, ensuring reliability, affordability, reducing carbon footprints, reinforcing global competiveness and etc. Along with such advantages that give the system administrators and electricity customers the convenience and speed to do business, the security of such a system is far more intrusive. One of the important aspects of maintaining security is on the consumption side, because maintaining the privacy of customers is important and neglecting that will cause an irreparable financial and social losses. Hence, in this paper, we tried to use the OPTICS density-based technique to diagnose abnormalities in information and intelligent data of customers instantly and compare the results of different scenarios. To improve the efficiency of the methodology, we use the index called LOF. Which is actually a factor in detecting the unusual nature of the data in the density-based methods, and will do this based on the score given to it. In other words, it is not binary but gives a score based on which the disturbance of the data can be measured. In order to carry out these simulations, we used London's intelligent metering data in January 2013, which was sent to the control center every 30 minutes.","PeriodicalId":346749,"journal":{"name":"2017 Smart Grid Conference (SGC)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121769584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Fault current limiter optimal placement considering different microgrid operational modes using Cuckoo search algorithm 基于布谷鸟搜索算法考虑微电网运行模式的故障限流器优化配置
Pub Date : 2017-12-01 DOI: 10.1109/SGC.2017.8308856
P. Maleki, A. A. K. Arani, G. Gharehpetian
Nowadays, the spread of smart grids is becoming more and more important due to their various technical and economic advantages. One of the most important aspects of smart grids is the use of low voltage products in the structure of distribution networks and their conversion into grid networks. A microgrid is a low power grid that can operate in different modes in relation to its upstream network: the functional modes of connected to or disconnected from the upstream network. These functional status shifts are always challenging to the microgrid utilization, one of which is the great difference between the measured fault current in the two operational modes of the grid. Protectoral equipment used based on the fault current measured when in disconnected operational mode may not function properly when connected to the upstream network. Using the Fault Current Limiter (FCL) is one way to reduce the effects of these disparities. One of the influencing factors beside the technicalities, is the economic aspects of the FCL. In this paper, we first develop a target function based on the technical and economic aspects of the FCL to reduce the difference between the two currents and the optimal value of these limiters by the Cuckoo Optimization Algorithm (COA). The results of the simulations performed in the MATLAB environment show the impact of FCL on the microgrid from the technical and economic point of view.
如今,由于智能电网具有各种技术和经济优势,其推广变得越来越重要。智能电网最重要的一个方面是在配电网结构中使用低压产品并将其转换为电网。微电网是一种低功率电网,它可以在与其上游网络相关的不同模式下运行:与上游网络连接或断开的功能模式。这些功能状态的变化一直给微网的利用带来挑战,其中之一就是两种运行模式下的实测故障电流存在较大差异。基于断开运行模式下测量的故障电流使用的保护设备在连接到上游网络时可能无法正常工作。使用故障限流器(FCL)是减少这些差异影响的一种方法。除了技术方面的影响因素外,整箱的经济方面也是影响因素之一。在本文中,我们首先基于FCL的技术和经济方面开发了一个目标函数,以减少两个电流之间的差异以及这些限制器的最优值,通过布谷鸟优化算法(COA)。在MATLAB环境下进行的仿真结果从技术和经济角度显示了FCL对微电网的影响。
{"title":"Fault current limiter optimal placement considering different microgrid operational modes using Cuckoo search algorithm","authors":"P. Maleki, A. A. K. Arani, G. Gharehpetian","doi":"10.1109/SGC.2017.8308856","DOIUrl":"https://doi.org/10.1109/SGC.2017.8308856","url":null,"abstract":"Nowadays, the spread of smart grids is becoming more and more important due to their various technical and economic advantages. One of the most important aspects of smart grids is the use of low voltage products in the structure of distribution networks and their conversion into grid networks. A microgrid is a low power grid that can operate in different modes in relation to its upstream network: the functional modes of connected to or disconnected from the upstream network. These functional status shifts are always challenging to the microgrid utilization, one of which is the great difference between the measured fault current in the two operational modes of the grid. Protectoral equipment used based on the fault current measured when in disconnected operational mode may not function properly when connected to the upstream network. Using the Fault Current Limiter (FCL) is one way to reduce the effects of these disparities. One of the influencing factors beside the technicalities, is the economic aspects of the FCL. In this paper, we first develop a target function based on the technical and economic aspects of the FCL to reduce the difference between the two currents and the optimal value of these limiters by the Cuckoo Optimization Algorithm (COA). The results of the simulations performed in the MATLAB environment show the impact of FCL on the microgrid from the technical and economic point of view.","PeriodicalId":346749,"journal":{"name":"2017 Smart Grid Conference (SGC)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116556624","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Challenges and opportunities of the integration of IoT and smart grid in Iran transmission power system 伊朗输变电系统物联网与智能电网融合的挑战与机遇
Pub Date : 2017-12-01 DOI: 10.1109/SGC.2017.8308847
Adel Nazemi Babadi, S. Nouri, S. Khalaj
IoT refers to the internetworking of physical devices including passive sensors and actuators that collect, analyze and exchange data via the Internet. Recently, AMI has attracted attention and praise from both industry and commerce for the vast improvements it has brought about in the accuracy of online meter reading and control. The modern Smart Meter can monitors electricity consumption, supply characteristics and its environment (against tampering) and sends the stored data back to the utility company for load monitoring, trend analysis, network loss management and billing purposes. The AMI system with aforementioned capabilities is generally regarded as Smart Grid 1.0. Recent developments and initiatives across the international landscape have been focused around leveraging IoT technologies to create Smart Grid 2.0. Smart Grid 2.0 is based on a qualified peer-to-peer architecture, which eliminates the disadvantages of SG 1.0. In this paper, a detailed comparison and analysis between SG 1.0 and 2.0 is done and the challenges and opportunities associated with the integration of IoT and SG 1.0 is described. Also, as a case study, different problems and challenges of IoT implementation in Iran transmission power system is presented and a conceptual structure, named as Power IoT (PIoT) is illustrated.
物联网是指通过互联网收集、分析和交换数据的物理设备的互联,包括无源传感器和执行器。最近,AMI在在线抄表和控制的准确性方面取得了巨大的进步,引起了工商界的关注和好评。现代智能电表可以监控电力消耗、供电特性及其环境(防止篡改),并将存储的数据发送回公用事业公司,用于负荷监控、趋势分析、网络损耗管理和计费目的。具有上述功能的AMI系统通常被视为智能电网1.0。国际上最近的发展和举措都集中在利用物联网技术创建智能电网2.0上。智能电网2.0基于一个合格的点对点架构,消除了智能电网1.0的缺点。本文对SG 1.0和SG 2.0进行了详细的比较和分析,并描述了物联网与SG 1.0融合所带来的挑战和机遇。此外,作为一个案例研究,提出了物联网在伊朗传输电力系统中实施的不同问题和挑战,并说明了一种称为电力物联网(PIoT)的概念结构。
{"title":"Challenges and opportunities of the integration of IoT and smart grid in Iran transmission power system","authors":"Adel Nazemi Babadi, S. Nouri, S. Khalaj","doi":"10.1109/SGC.2017.8308847","DOIUrl":"https://doi.org/10.1109/SGC.2017.8308847","url":null,"abstract":"IoT refers to the internetworking of physical devices including passive sensors and actuators that collect, analyze and exchange data via the Internet. Recently, AMI has attracted attention and praise from both industry and commerce for the vast improvements it has brought about in the accuracy of online meter reading and control. The modern Smart Meter can monitors electricity consumption, supply characteristics and its environment (against tampering) and sends the stored data back to the utility company for load monitoring, trend analysis, network loss management and billing purposes. The AMI system with aforementioned capabilities is generally regarded as Smart Grid 1.0. Recent developments and initiatives across the international landscape have been focused around leveraging IoT technologies to create Smart Grid 2.0. Smart Grid 2.0 is based on a qualified peer-to-peer architecture, which eliminates the disadvantages of SG 1.0. In this paper, a detailed comparison and analysis between SG 1.0 and 2.0 is done and the challenges and opportunities associated with the integration of IoT and SG 1.0 is described. Also, as a case study, different problems and challenges of IoT implementation in Iran transmission power system is presented and a conceptual structure, named as Power IoT (PIoT) is illustrated.","PeriodicalId":346749,"journal":{"name":"2017 Smart Grid Conference (SGC)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134591134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 7
Online pre-fault FACTS tuning in smart grid for transient stability enhancement based on CCT 基于CCT的智能电网暂态稳定性在线预校正
Pub Date : 2017-12-01 DOI: 10.1109/SGC.2017.8308869
M. S. Mahadavi, S. Mehrnia, G. Gharehpetian, M. Abedi
Changing the steady state parameters of power system before fault occurrence is a new approach for increasing the transient stability of the system. With the presence of PMUs in smart grid and the possession of system information at any given time, FACTS devices can be set up online so that total critical clearing time (CCT) of the network is maximized as the most accurate transient stability criterion, by changing the system's steady state variables before the fault occurrence. Calculation of CCT requires iterative fault analysis and time-domain simulation of the network. In this paper, a novel prefault online optimal FACTS tuning is presented for transient stability enhancement of smart grid by CCT maximizing. Also the optimal type, number and location of FACTS devices are determined for long term planning. FACTS devices modeling and New England 39-bus system simulation are done by DIgSILENT software. DPL is used for CCT calculation and proposed approach implementation based on PSO algorithm. Also investment cost of these devices are considered for determining the optimal number of them.
在故障发生前改变电力系统的稳态参数是提高系统暂态稳定性的新途径。由于智能电网中存在pmu,并且随时掌握系统信息,因此可以在线设置FACTS设备,通过改变故障发生前的系统稳态变量,使网络的总临界清除时间(CCT)最大化,成为最准确的暂态稳定判据。CCT的计算需要对网络进行迭代故障分析和时域仿真。针对CCT最大化增强智能电网暂态稳定性的问题,提出了一种新的故障前在线最优FACTS整定方法。此外,FACTS设备的最佳类型、数量和位置也是为了长期规划而确定的。利用DIgSILENT软件对FACTS设备进行建模,对新英格兰39总线系统进行仿真。将DPL用于CCT计算,并提出了基于粒子群算法的方法实现。同时考虑了这些设备的投资成本,以确定它们的最佳数量。
{"title":"Online pre-fault FACTS tuning in smart grid for transient stability enhancement based on CCT","authors":"M. S. Mahadavi, S. Mehrnia, G. Gharehpetian, M. Abedi","doi":"10.1109/SGC.2017.8308869","DOIUrl":"https://doi.org/10.1109/SGC.2017.8308869","url":null,"abstract":"Changing the steady state parameters of power system before fault occurrence is a new approach for increasing the transient stability of the system. With the presence of PMUs in smart grid and the possession of system information at any given time, FACTS devices can be set up online so that total critical clearing time (CCT) of the network is maximized as the most accurate transient stability criterion, by changing the system's steady state variables before the fault occurrence. Calculation of CCT requires iterative fault analysis and time-domain simulation of the network. In this paper, a novel prefault online optimal FACTS tuning is presented for transient stability enhancement of smart grid by CCT maximizing. Also the optimal type, number and location of FACTS devices are determined for long term planning. FACTS devices modeling and New England 39-bus system simulation are done by DIgSILENT software. DPL is used for CCT calculation and proposed approach implementation based on PSO algorithm. Also investment cost of these devices are considered for determining the optimal number of them.","PeriodicalId":346749,"journal":{"name":"2017 Smart Grid Conference (SGC)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115018343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The estimation of inertia and load damping constants using phasor measurement data 利用相量测量数据估计惯性和负载阻尼常数
Pub Date : 2017-12-01 DOI: 10.1109/SGC.2017.8308889
A. Darbandsari, A. Maroufkhani, T. Amraee
Two very important parameters especially in frequency stability analysis, are inertia constant and equivalent load damping constant of system. Equivalent inertia constant depends on inertia constant of synchronous machines in the grid and load damping factor depends on frequency sensitivity of load, especially induction motors. By appearing wide area monitoring systems (WAMS) based on phasor measurement units, equivalent system frequency response can be obtained with high accuracy. In this paper firstly, the equivalent frequency response is achieved by phasor measurements and then according to the transient and steady state characteristics of the frequency response, the inertia and load damping constants are estimated. The performance of proposed method in estimating the equivalent parameters of the system is investigated under different conditions. The developed method is implemented in IEEE 39-Bus dynamic test grid.
系统的惯性常数和等效负载阻尼常数是频率稳定性分析中两个非常重要的参数。等效惯性常数取决于电网中同步电机的惯性常数,负载阻尼系数取决于负载特别是感应电机的频率灵敏度。基于相量测量单元的广域监测系统(WAMS)的出现,可以获得高精度的等效系统频率响应。本文首先通过相量测量得到等效频率响应,然后根据频率响应的瞬态和稳态特性,估计出惯性常数和负载阻尼常数。研究了该方法在不同条件下对系统等效参数的估计性能。该方法已在IEEE 39总线动态测试网格中实现。
{"title":"The estimation of inertia and load damping constants using phasor measurement data","authors":"A. Darbandsari, A. Maroufkhani, T. Amraee","doi":"10.1109/SGC.2017.8308889","DOIUrl":"https://doi.org/10.1109/SGC.2017.8308889","url":null,"abstract":"Two very important parameters especially in frequency stability analysis, are inertia constant and equivalent load damping constant of system. Equivalent inertia constant depends on inertia constant of synchronous machines in the grid and load damping factor depends on frequency sensitivity of load, especially induction motors. By appearing wide area monitoring systems (WAMS) based on phasor measurement units, equivalent system frequency response can be obtained with high accuracy. In this paper firstly, the equivalent frequency response is achieved by phasor measurements and then according to the transient and steady state characteristics of the frequency response, the inertia and load damping constants are estimated. The performance of proposed method in estimating the equivalent parameters of the system is investigated under different conditions. The developed method is implemented in IEEE 39-Bus dynamic test grid.","PeriodicalId":346749,"journal":{"name":"2017 Smart Grid Conference (SGC)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131174756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Improving the response transient and dynamic stability using voltage-based droop control in an islanded microgrid equipped with energy storage 基于电压下垂控制的带储能孤岛微电网响应暂态和动态稳定性研究
Pub Date : 2017-12-01 DOI: 10.1109/SGC.2017.8308863
M. Nassaj, S. Mehrnia, H. Rastegar, M. Abedi
Due to the existence of a high number of unintegrated small-scale sources, islanded microgrids need some specific flexibilities such as energy storages. Therefore, in order to control the load and distributed generations in a microgrid, voltage-based droop control is used. This control method determines the switching of power electronic converters to ensure the stable operation of the microgrid. In this paper, the voltage-based droop control is applied to energy storage systems considering their charge condition based on fuzzy controller. This voltage-based droop control automatically adjusts the power priority of microgrid elements too and energy storage systems are considered in this priority list without any communication tools. One of the advantages of this method is coordinated combination of distributed generations in the studied system. The simulated cases prove the efficient performance of voltage-based droop control in transient and dynamic responses in existence of all element of the microgrid.
由于存在大量未集成的小型源,孤岛微电网需要一些特定的灵活性,如能量储存。因此,为了控制微电网中的负载和分布式发电,采用基于电压的下垂控制。这种控制方法决定了电力电子变流器的开关,保证了微网的稳定运行。本文将基于模糊控制器的电压下垂控制应用于考虑充电条件的储能系统。这种基于电压的下垂控制也会自动调整微电网元素的功率优先级,并且储能系统在此优先级列表中被考虑,而无需任何通信工具。该方法的优点之一是将所研究的系统中的分布式代进行协调组合。仿真结果表明,在微电网各单元均存在的情况下,基于电压的下垂控制在暂态和动态响应下都具有良好的性能。
{"title":"Improving the response transient and dynamic stability using voltage-based droop control in an islanded microgrid equipped with energy storage","authors":"M. Nassaj, S. Mehrnia, H. Rastegar, M. Abedi","doi":"10.1109/SGC.2017.8308863","DOIUrl":"https://doi.org/10.1109/SGC.2017.8308863","url":null,"abstract":"Due to the existence of a high number of unintegrated small-scale sources, islanded microgrids need some specific flexibilities such as energy storages. Therefore, in order to control the load and distributed generations in a microgrid, voltage-based droop control is used. This control method determines the switching of power electronic converters to ensure the stable operation of the microgrid. In this paper, the voltage-based droop control is applied to energy storage systems considering their charge condition based on fuzzy controller. This voltage-based droop control automatically adjusts the power priority of microgrid elements too and energy storage systems are considered in this priority list without any communication tools. One of the advantages of this method is coordinated combination of distributed generations in the studied system. The simulated cases prove the efficient performance of voltage-based droop control in transient and dynamic responses in existence of all element of the microgrid.","PeriodicalId":346749,"journal":{"name":"2017 Smart Grid Conference (SGC)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127017632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Generalized droop characteristic-based Demand response and secondary frequency control coordination in an isolated microgrid 基于广义下垂特性的孤立微电网需求响应与二次调频协调
Pub Date : 2017-12-01 DOI: 10.1109/SGC.2017.8308859
F. Habibi, H. Bevrani, Q. Shafiee
Electricity crisis, environmental issues and as well as economic considerations enters modern power system to use alternative sources instead of the conventional ones. One of the newest ones in which controllable active and reactive loads are continuously contributed in the dynamic regulation called Demand response (DR). In this paper, a new method to apply DR in the microgrid (MG) are presented. It is based on generalized droop characteristic (GDC) which change controllable loads using a series of specific equations. The proper performance of GDC-based DR is achieved by changing controllable active and reactive loads which it changed based on the system conditions. To test the control method several scenarios are simulated in which the system frequency and voltage are studied in two states. The simulation results are carried out in the presence of conventional controller and in the next mode, in addition to the conventional ones DR is contributed in regulation dynamics. The results show that the proposed control methodology have appropriate performance such that the frequency deviations and voltage fluctuations subjected by different faults are far fewer in comparison of pervious controllers.
电力危机、环境问题以及经济考虑进入现代电力系统,使用替代能源代替传统能源。需求响应(Demand response, DR)是一种将可控有功负荷和无功负荷连续贡献到动态调节中的新方法。本文提出了一种将DR应用于微电网的新方法。它基于广义下垂特性(GDC),通过一系列特定的方程来改变可控载荷。通过改变可控制的有功负荷和无功负荷来实现基于gdc的容灾系统的适当性能。为了验证该控制方法,对两种状态下的系统频率和电压进行了仿真。仿真结果是在常规控制器存在的情况下进行的,在下一模式下,除常规控制器外,DR还被用于调节动力学。结果表明,所提出的控制方法具有良好的性能,与以前的控制器相比,不同故障引起的频率偏差和电压波动要小得多。
{"title":"Generalized droop characteristic-based Demand response and secondary frequency control coordination in an isolated microgrid","authors":"F. Habibi, H. Bevrani, Q. Shafiee","doi":"10.1109/SGC.2017.8308859","DOIUrl":"https://doi.org/10.1109/SGC.2017.8308859","url":null,"abstract":"Electricity crisis, environmental issues and as well as economic considerations enters modern power system to use alternative sources instead of the conventional ones. One of the newest ones in which controllable active and reactive loads are continuously contributed in the dynamic regulation called Demand response (DR). In this paper, a new method to apply DR in the microgrid (MG) are presented. It is based on generalized droop characteristic (GDC) which change controllable loads using a series of specific equations. The proper performance of GDC-based DR is achieved by changing controllable active and reactive loads which it changed based on the system conditions. To test the control method several scenarios are simulated in which the system frequency and voltage are studied in two states. The simulation results are carried out in the presence of conventional controller and in the next mode, in addition to the conventional ones DR is contributed in regulation dynamics. The results show that the proposed control methodology have appropriate performance such that the frequency deviations and voltage fluctuations subjected by different faults are far fewer in comparison of pervious controllers.","PeriodicalId":346749,"journal":{"name":"2017 Smart Grid Conference (SGC)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115727369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Improving transient performance of VSG based microgrids by virtual FACTS' functions 利用虚拟FACTS功能改善基于VSG的微电网暂态性能
Pub Date : 2017-12-01 DOI: 10.1109/SGC.2017.8308864
Amin Karimi, Yousef Khayat, Mobin Naderi, R. Mirzaee, H. Bevrani
This report presents a transient proportional controller which is augmented on virtual inertia's topology. The concept of virtual synchronous generator (VSG) is inspired by the behavior of the synchronous generators and researchers map this behavior on microgrids to mimic the power system's dynamics on microgrids. The added characteristic is based on FACTS' functions such as: STATCOM swing damping capability for large-signal disturbance damping at transient times, for VSG based microgrids. This capability is added to the VSG structure by a bang-bang controller. The proposed bang-bang controller is used to improve transient response of VSG based microgrids just in large signal disturbances, including: islanding, three-phase faults, and huge variation of loads. Simplicity and capability to improve the transient response are the main features of the added configuration. Simulation results verify the improvement of the introduced manner by the represented augmented VSG control strategy.
本文提出了一种基于虚拟惯性拓扑的暂态比例控制器。虚拟同步发电机(VSG)的概念是由同步发电机的行为启发而来的,研究人员将这种行为映射到微电网上,以模拟微电网上电力系统的动态。增加的特性是基于FACTS的功能,例如:STATCOM振荡阻尼能力,用于瞬态时间的大信号干扰阻尼,用于基于VSG的微电网。这种能力通过一个bang-bang控制器添加到VSG结构中。提出的bang-bang控制器用于改善基于VSG的微电网在孤岛、三相故障和负荷变化较大的信号干扰下的暂态响应。增加的配置的主要特点是简单性和改善瞬态响应的能力。仿真结果验证了所提出的增广VSG控制策略对所引入方法的改进。
{"title":"Improving transient performance of VSG based microgrids by virtual FACTS' functions","authors":"Amin Karimi, Yousef Khayat, Mobin Naderi, R. Mirzaee, H. Bevrani","doi":"10.1109/SGC.2017.8308864","DOIUrl":"https://doi.org/10.1109/SGC.2017.8308864","url":null,"abstract":"This report presents a transient proportional controller which is augmented on virtual inertia's topology. The concept of virtual synchronous generator (VSG) is inspired by the behavior of the synchronous generators and researchers map this behavior on microgrids to mimic the power system's dynamics on microgrids. The added characteristic is based on FACTS' functions such as: STATCOM swing damping capability for large-signal disturbance damping at transient times, for VSG based microgrids. This capability is added to the VSG structure by a bang-bang controller. The proposed bang-bang controller is used to improve transient response of VSG based microgrids just in large signal disturbances, including: islanding, three-phase faults, and huge variation of loads. Simplicity and capability to improve the transient response are the main features of the added configuration. Simulation results verify the improvement of the introduced manner by the represented augmented VSG control strategy.","PeriodicalId":346749,"journal":{"name":"2017 Smart Grid Conference (SGC)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121850568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 10
Optimal placement and charge/discharge scheduling of electric parking lots considering reactive power generation capability 考虑无功发电能力的电动停车场优化布局与充放电调度
Pub Date : 2017-12-01 DOI: 10.1109/SGC.2017.8308881
E. Mohammadi, R. Fadaeinedjad, M. Rashidinejad, A. Mahdavinia
Increasing the number of electric parking lots (EPLs) in the distribution systems may have some important impacts on their performances. These impacts can improve or deteriorate the system's performance depending on the EPLs' charge/discharge scheduling (CDS), location and size of these resources. This paper presents an approach to firstly determine an appropriate charge/discharge scheduling for an EPL in a 24-hour time period. Secondly, the optimal location is specified for an EPL to reduce energy loss, improve voltage stability, and voltage profile considering the reactive power capability of the EPL's inverter. The proposed method is implemented on the IEEE 33-bus standard distribution system. The genetic algorithm and backward-forward power flow method are utilized to evaluate the effectiveness of the proposed method.
增加配电系统中电动停车场的数量可能会对配电系统的性能产生重要影响。这些影响可以改善或恶化系统的性能,具体取决于epl的充电/放电调度(CDS)、这些资源的位置和大小。本文提出了一种方法,首先确定一个合适的充电/放电计划的EPL在24小时的时间段内。其次,考虑EPL逆变器的无功能力,确定EPL的最优位置,以减少能量损失,提高电压稳定性和电压分布。该方法已在IEEE 33总线标准配电系统上实现。利用遗传算法和前向潮流法对所提方法的有效性进行了评价。
{"title":"Optimal placement and charge/discharge scheduling of electric parking lots considering reactive power generation capability","authors":"E. Mohammadi, R. Fadaeinedjad, M. Rashidinejad, A. Mahdavinia","doi":"10.1109/SGC.2017.8308881","DOIUrl":"https://doi.org/10.1109/SGC.2017.8308881","url":null,"abstract":"Increasing the number of electric parking lots (EPLs) in the distribution systems may have some important impacts on their performances. These impacts can improve or deteriorate the system's performance depending on the EPLs' charge/discharge scheduling (CDS), location and size of these resources. This paper presents an approach to firstly determine an appropriate charge/discharge scheduling for an EPL in a 24-hour time period. Secondly, the optimal location is specified for an EPL to reduce energy loss, improve voltage stability, and voltage profile considering the reactive power capability of the EPL's inverter. The proposed method is implemented on the IEEE 33-bus standard distribution system. The genetic algorithm and backward-forward power flow method are utilized to evaluate the effectiveness of the proposed method.","PeriodicalId":346749,"journal":{"name":"2017 Smart Grid Conference (SGC)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129995999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Impacts of bad data injection on power systems security: Intruder point of view 不良数据注入对电力系统安全的影响:入侵者的观点
Pub Date : 2017-12-01 DOI: 10.1109/SGC.2017.8308860
Sina Gharebaghi, S. H. Hosseini, M. Izadi, A. Safdarian
Nowadays communication and monitoring systems play an important role in power systems security. However, these systems are exposed to bad data injection through attackers. This paper is aimed to propose a priority order list of attacked buses in order to be fully informed about the attacker decision. To do so, system security is evaluated through two well-known risk indices including under voltage risk index and overloading risk index. A genetic algorithm (GA) is employed to determine the most severe attack for each of the security indices. The effectiveness and accuracy of the proposed model are scrutinized through simulations on the IEEE 30-bus network. The paper reveals that knowing the most important buses from the attacker point of view will considerably reduce the freedom degree of the attacker.
当前,通信监控系统在电力系统安全保障中发挥着重要作用。然而,这些系统暴露于攻击者的不良数据注入。本文旨在提出被攻击总线的优先顺序列表,以便充分了解攻击者的决策。为此,通过欠压风险指数和过载风险指数这两个众所周知的风险指数来评估系统的安全性。采用遗传算法确定每个安全指标的最严重攻击。通过在IEEE 30总线网络上的仿真验证了该模型的有效性和准确性。研究表明,从攻击者的角度了解最重要的总线将大大降低攻击者的自由度。
{"title":"Impacts of bad data injection on power systems security: Intruder point of view","authors":"Sina Gharebaghi, S. H. Hosseini, M. Izadi, A. Safdarian","doi":"10.1109/SGC.2017.8308860","DOIUrl":"https://doi.org/10.1109/SGC.2017.8308860","url":null,"abstract":"Nowadays communication and monitoring systems play an important role in power systems security. However, these systems are exposed to bad data injection through attackers. This paper is aimed to propose a priority order list of attacked buses in order to be fully informed about the attacker decision. To do so, system security is evaluated through two well-known risk indices including under voltage risk index and overloading risk index. A genetic algorithm (GA) is employed to determine the most severe attack for each of the security indices. The effectiveness and accuracy of the proposed model are scrutinized through simulations on the IEEE 30-bus network. The paper reveals that knowing the most important buses from the attacker point of view will considerably reduce the freedom degree of the attacker.","PeriodicalId":346749,"journal":{"name":"2017 Smart Grid Conference (SGC)","volume":"140 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116490653","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
期刊
2017 Smart Grid Conference (SGC)
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1