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2017 Smart Grid Conference (SGC)最新文献

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Optimizing microgrid using demand response and electric vehicles connection to microgrid 利用需求响应和电动汽车接入微电网优化微电网
Pub Date : 2017-12-01 DOI: 10.1109/SGC.2017.8308873
Sahand Liasi, S. Bathaee
The classical modus operandi of electric energy systems try to keep demand and supply balanced at all times, but this cause high generation prices at peak hours and needs huge power capacity to comply peak demand, while in other hours this capacity remains useless. To avoid these issues, many researchers focus on peak shaving and demand response activities to improve system efficiency and reliability. In this paper, a game theory based method has been developed and simulated to show proficiency of managing ventilation system and simultaneously connecting electric vehicles to microgrid (V2G) to provide various demand response services and peak shaving with focus on optimizing generation cost and emission together.
传统的电力系统运作方式试图在任何时候保持供需平衡,但这会导致高峰时段的高电价,并且需要巨大的电力容量来满足高峰需求,而在其他时段,这些容量仍然是无用的。为了避免这些问题,许多研究人员关注于调峰和需求响应活动,以提高系统的效率和可靠性。本文提出了一种基于博弈论的方法,并对其进行了仿真,以显示在管理通风系统的同时,电动汽车接入微电网(V2G),提供各种需求响应服务和调峰,同时关注发电成本和排放的优化。
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引用次数: 15
Voltage control in smart grid using T2FLS T2FLS在智能电网中的电压控制
Pub Date : 2017-12-01 DOI: 10.1109/SGC.2017.8308893
Yaser Khodayar, K. Sabahi, A. Hajizadeh
A smart grid features can be referred to as a two-way communication with all active network elements and decentralized resources such as under-load tap-changer (ULTC), capacitor, and distributed generation (DG) units. In the smart grid systems, the mentioned units are required to be well coordinated to keep the voltage within the standard range. Therefore, in this paper, a multi-agent controller based on type-2 fuzzy logic system (T2FLS) is utilized to coordinate the DG, ULTC, and load to regulate the voltage of the smart grid in the presence of noise and uncertainty. The proposed fuzzy system identifies the different parts of the smart grid as an agent (i.e. ULTC, DG, and load) and regulates the voltage by managing them. A 16-bus power system has been utilized to demonstrate the effectiveness of the proposed method. It has been shown that the proposed T2FLS controller outperforms the type-1 fuzzy controller and regulates the voltage in an appropriate way even in the presence of the different levels of measurement noise and uncertainty.
智能电网的特征可以被称为与所有有源网络单元和分散资源(如欠载分接开关(ULTC)、电容器和分布式发电(DG)单元)的双向通信。在智能电网系统中,上述各单元之间需要很好地协调,使电压保持在标准范围内。因此,本文采用基于2型模糊逻辑系统(T2FLS)的多智能体控制器对DG、ULTC和负载进行协调,在存在噪声和不确定性的情况下实现智能电网的电压调节。提出的模糊系统将智能电网的不同部分(即ULTC、DG和负载)识别为一个代理,并通过管理它们来调节电压。一个16总线电力系统的应用验证了该方法的有效性。结果表明,所提出的T2FLS控制器优于1型模糊控制器,即使存在不同程度的测量噪声和不确定度,也能以适当的方式调节电压。
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引用次数: 1
A comparison of centralized and decentralized energy-management models of multi-microgrid systems 多微网系统集中式和分散式能源管理模式的比较
Pub Date : 2017-12-01 DOI: 10.1109/SGC.2017.8308837
Farshad Khavari, A. Badri, Ali Zangeneh, M. Shafiekhani
Various models are proposed to manage multi-microgrid energy systems. Centralized and decentralized are two basic models, to this end. This paper compares these two energy-management models of multi-microgrid systems for day-ahead scheduling. This comparison is done for the time of calculation, the benefit of microgrids and the state of the Distributed Energy Resources(DER) in microgrids when happen predetermined islanding mode. Simulation and unit commitment is coded and solved by mixed integer programming (MIP) solver CPLEX in GAMS.
提出了多种模型来管理多微网能源系统。为此,中心化和去中心化是两种基本模式。本文比较了这两种多微网系统日前调度的能量管理模型。对计算时间、微电网效益以及微电网在发生预定孤岛模式时的分布式能源状态进行了比较。采用GAMS中的混合整数规划(MIP)求解器CPLEX对仿真和单元承诺进行编码和求解。
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引用次数: 14
Optimal operation of wind farm in presence of pumped-storage station as smart infrastructure and load estimation using artificial neural networks 以抽水蓄能电站为智能基础设施的风电场优化运行及人工神经网络负荷估计
Pub Date : 2017-12-01 DOI: 10.1109/SGC.2017.8308880
H. Shayeghi, A. Ahmadpour, Mir Mohsen Hosseini Khashe Heiran
Wind power plants in power systems are cleaned and efficient. Determination of optimal location and power output, is the essential phase in the operation of a wind power plant. In this paper, a smart grid is considered. Then, the optimal operation of a wind power plant in the electricity market will be explained. This issue is described by viewpoint of wind and pumped-storage power plants, distribution utility, and global operation. For solution of this problem, a pumped-storage power plant is used to help generation of the wind power plant. Also, by using Artificial Neural Networks (ANNs) algorithm, loads are estimated. To demonstrate the advantages of the proposed method, the Spanish wind farm's practical data has been used. Simulations have been done in MATLAB software, and the results are presented.
风力发电厂在电力系统中是清洁和高效的。风电场的最佳选址和最佳输出功率的确定是风电场运行的关键环节。本文考虑的是一个智能电网。然后,解释风力发电厂在电力市场中的最优运行。从风电场和抽水蓄能电站、配电公用事业和全球运行的角度阐述了这一问题。为解决这一问题,采用抽水蓄能电站辅助风电场发电。同时,利用人工神经网络(ann)算法对负载进行估计。为了证明该方法的优越性,文中还使用了西班牙风电场的实际数据。在MATLAB软件中进行了仿真,并给出了仿真结果。
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引用次数: 22
A new control method based on droop and Thevenin theorem to improve responses of VSIs in islanded MG 提出了一种新的基于下垂和Thevenin定理的控制方法来改善孤岛MG中vsi的响应
Pub Date : 2017-12-01 DOI: 10.1109/SGC.2017.8308840
H. Naderian, A. A. K. Arani, G. Gharehpetian
In this article, a new control method based on ordinary droop and Thevenin impedance from DG inverter-side in islanded microgrids is presented and the results have been discussed and compared to each other for both situations. In spite of improvements in steady state responses and rather desirable convergence in parameters such as circulating current among inverters, active and reactive powers, and the proportion of active power generated by inverters, ordinary droop provides inappropriate and long transient responses which is not favorable. In the novel method, the Thevenin impedance from inverter-side is utilized in one of the equations of droop leading up to significant improvement in transient responses of introduced parameters, both in their amplitude and response length time. Diagrams plotted for each of them, indicates these improvements.
本文提出了一种基于孤岛微电网DG逆变器侧普通下垂和Thevenin阻抗的新控制方法,并对两种情况下的控制结果进行了讨论和比较。尽管稳态响应有所改善,逆变器之间的循环电流、有功和无功功率以及逆变器产生的有功功率的比例等参数也有较好的收敛性,但普通下垂提供的不合适且较长的瞬态响应是不利的。在这种新方法中,逆变器侧的Thevenin阻抗被利用在一个下垂方程中,使得引入参数的瞬态响应在幅度和响应长度时间上都有了显著的改善。为它们绘制的图表表明了这些改进。
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引用次数: 1
Implementation of smart optimal and automatic control of electrical home appliances (IoT) 实现家电智能优化与自动控制(IoT)
Pub Date : 2017-12-01 DOI: 10.1109/SGC.2017.8308861
A. Parsa, T. A. Najafabadi, F. R. Salmasi
This paper introduces a system of smart optimal and automatic control of electrical home appliances. In the proposed system, a smart controller is designed to control the electrical devices consumption by turning on and off the smart plugs connected to each device, at the right time. The system belongs to a domestic consuming unit consists of different types of electrical loads with different priority of use and amount of consumption. In this control method, the instantaneous or multi-time electricity tariffs, technical constraints of each device, and the optimum time for customers to use each device are considered. Then, the best answer of optimization is selected and implemented in compliance with all constraints with multi-criteria optimization. In this design, power distribution management company can manage the household consumption by determining the appropriate time of use (TOU) tariffs or even by sending appropriate consumption reduction commands. Also, conservation voltage reduction (CVR) can be implemented in this design. In addition, in the paper, the made laboratory system for the implementation of this method is introduced.
介绍了一种家用电器智能优化自动控制系统。在提出的系统中,设计了一个智能控制器,通过在适当的时间打开和关闭连接到每个设备的智能插头来控制电气设备的消耗。该系统属于家庭用电单元,由不同类型的用电负荷组成,具有不同的用电优先级和用电量。在这种控制方法中,考虑了瞬时或多时段电价、各设备的技术约束以及客户使用各设备的最佳时间。然后,采用多准则优化的方法,在满足所有约束条件的情况下,选择优化的最佳解并实施。在本设计中,配电管理公司可以通过确定适当的分时电价(TOU),甚至通过发送适当的降耗命令来管理家庭用电量。此外,本设计还可以实现守恒电压降低(CVR)。此外,本文还介绍了为实现该方法而制作的实验室系统。
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引用次数: 18
Optimal placement of normally open switches for distribution automation in smart grid 智能电网配电自动化常开开关的优化配置
Pub Date : 2017-12-01 DOI: 10.1109/SGC.2017.8308870
S. M. Hashemi, A. Fereidunian, Hamed Mirsaeedi, H. Lesani
The restoration process in distribution automation system has a significant role in reducing restoration time of interrupted loads. Availability of normally open switches improves the restoration process in the distribution system with reducing the number of switching. This paper introduces a search algorithm based on the greedy set cover problem for determining the optimal set of normally open switches, in a way that each fault-case can be restored with one pair of switching. The proposed algorithm is implemented for a modified IEEE 37-node test system.
配电自动化系统中的恢复过程对减少中断负荷的恢复时间具有重要作用。常开开关的可用性通过减少开关的数量来改善配电系统的恢复过程。本文提出了一种基于贪心集覆盖问题的搜索算法,用于确定常开开关的最优集合,使得每个故障情况都可以用一对开关恢复。在改进的IEEE 37节点测试系统中实现了该算法。
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引用次数: 7
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2017 Smart Grid Conference (SGC)
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