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2018 International Conference on Smart Grid and Clean Energy Technologies (ICSGCE)最新文献

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A Linear Programming Approach to Optimize Demand Response for Water Systems under Water Demand Uncertainties 用水需求不确定条件下用水系统需求响应优化的线性规划方法
Pub Date : 2018-05-01 DOI: 10.1109/ICSGCE.2018.8556696
Chouab Mkireb, A. Dembélé, A. Jouglet, T. Denoeux
Worldwide efforts to accelerate energy transition require consumers acting like prosumers in energy markets. Demand side management is believed to facilitate the integration of high share of renewables into the electric power grid, and contributes to the reduction of $CO_{2}$ emissions by reducing peak power load. Drinking Water Systems, by the presence of storage units and variable speed pumps, can address energy efficiency mechanisms such as Demand Response. In this paper, we use linear programming to optimize pump schedules in Drinking Water Systems while trading Demand Response in a spot power market during peak times. Uncertainties about water demands are taken into account in the mathematical model allowing to propose power reductions in the day-ahead spot power market, covering potential risks of real-time water demand forecasting inaccuracy.
全球加速能源转型的努力要求消费者在能源市场中像生产消费者一样行动。需求侧管理被认为有助于将高份额的可再生能源纳入电网,并通过降低峰值电力负荷有助于减少二氧化碳排放。饮用水系统,通过存储单元和变速泵的存在,可以解决能源效率机制,如需求响应。在本文中,我们使用线性规划来优化饮用水系统的泵调度,同时在高峰时段的现货电力市场交易需求响应。在数学模型中考虑了水需求的不确定性,从而可以提出前一天现货电力市场的电力减少,从而覆盖实时水需求预测不准确的潜在风险。
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引用次数: 5
Real-Time Localized Control of Transient Stability by the Localized Transient Stability (LTS) Method with Static Var Compensator (SVC) 基于静态无功补偿器(SVC)的局部暂态稳定(LTS)方法实时局部控制
Pub Date : 2018-05-01 DOI: 10.1109/ICSGCE.2018.8556778
A. M. Miah
Real-time localized control of transient stability by the very recently proposed Localized Transient Stability (LTS) Method with Static Var Compensator (SVC) as the local control means is presented here. However, since the technique is based on the LTS method, transient stability in this technique is viewed as the interaction of each individual generator with its respective remaining generators. Therefore, in this technique, the post-fault power system is represented by a two-generator localized power system at the site of each individual generator. Each of these localized power systems is then driven to its respective stable equilibrium by local control actions with local computations using the locally measured data to drive the full (entire) power system to its stable equilibrium. New investigative results are presented here to demonstrate the potential of the real-time localized control of transient stability by the LTS method.
本文提出了以静态无功补偿器(SVC)作为局部控制手段的局部暂态稳定(LTS)方法。然而,由于该技术基于LTS方法,因此该技术中的暂态稳定性被视为每个单独发电机与其各自剩余发电机的相互作用。因此,在这种技术中,故障后的电力系统被表示为每台单独发电机所在位置的双发电机局部电力系统。然后,利用局部测量数据进行局部计算,通过局部控制动作将每个局部电力系统驱动到各自的稳定平衡,从而驱动整个(整个)电力系统达到稳定平衡。本文提出了新的研究结果,以证明LTS方法对暂态稳定进行实时局部控制的潜力。
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引用次数: 2
Impulsive Noise Reduction in Power Line Communication MAC Protocol with Adaptive Filtering Technique Using Network Simulator-3 基于Network Simulator-3的电力线通信MAC协议自适应滤波抑制脉冲噪声
Pub Date : 2018-05-01 DOI: 10.1109/ICSGCE.2018.8556779
Anton Joliz, Nair Madhavan, B. Goi, Ezra Morris
Power Line Communication (PLC) is one of the communication technologies that uses existing infrastructure for data transmission. Despite the potential to transmit data over power line, there exists a challenge to overcome the effects caused by the impulsive noise. There is a need for impulsive noise reduction to reduce its noise effects and increase the performance of the network. Generally, adaptive filter performs better than any other existing techniques in noise reduction. This study deals with the impulsive noise reduction using the adaptive filter. An adaptive filter using Least Mean Squares (LMS) algorithm is modelled for a PLC-MAC (Medium Access Control) network with 26 nodes using network simulator-3 (ns-3). The performance of this network without the presence of impulsive noise, with the presence of impulsive noise (without noise reduction) and with adaptive noise reduction is compared and analysed.
电力线通信(PLC)是一种利用现有基础设施进行数据传输的通信技术。尽管在电力线上传输数据具有潜力,但克服脉冲噪声的影响仍然是一个挑战。为了降低脉冲噪声的影响,提高网络的性能,需要对脉冲噪声进行降噪。一般来说,自适应滤波在降噪方面的效果优于现有的降噪技术。本文研究了利用自适应滤波器对脉冲噪声进行降噪的方法。使用网络模拟器-3 (ns-3)对具有26个节点的PLC-MAC(介质访问控制)网络建模了一个使用最小均方(LMS)算法的自适应滤波器。对无脉冲噪声、有脉冲噪声(不降噪)和自适应降噪情况下的网络性能进行了比较分析。
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引用次数: 0
Performance Evaluation and a New Thermal Model for a Photovoltaic-Thermal Water Collector System 光伏-热水集热系统的性能评价及一种新的热模型
Pub Date : 2018-05-01 DOI: 10.1109/ICSGCE.2018.8556797
R. Kulkarni, R. B. Shinde, D. Talange
A Photovoltaic-thermal (PVT) system is a hybrid solar panel system combining the functionality of solar photovoltaic (PV) and thermal collectors in one system. In Solar PV panel as operating temperature increases, electrical efficiency of panel decreases. In solar PVT panel low temperature fluid, for example water or air is circulated through the heat exchanger placed on back side of PV panel to extract heat from panel and then that heat energy to be utilized for thermal applications. In this way improvement in electrical efficiency is achieved along with heat energy as a by-product. In this paper, a thermal model of a PVT water collector system has been developed. An analytical expression for solar cell temperature, back surface temperature of tedlar, water temperature and an overall thermal efficiency of water collector system has been derived.
光伏-热(PVT)系统是集太阳能光伏(PV)和集热器功能于一体的混合太阳能电池板系统。在太阳能光伏面板中,随着工作温度的升高,面板的电效率降低。在太阳能PVT面板中,低温流体,例如水或空气,通过放置在PV面板背面的热交换器循环,从面板中提取热量,然后将热能用于热应用。通过这种方式,电能效率的提高伴随着副产品热能的产生而实现。本文建立了PVT集水系统的热模型。推导了太阳能电池温度、太阳能电池板背面温度、水温度和集水系统整体热效率的解析表达式。
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引用次数: 1
Improving Rural Electrification through Interconnected Solar Micro Grids 通过太阳能微电网互联提高农村电气化水平
Pub Date : 2018-05-01 DOI: 10.1109/ICSGCE.2018.8556733
N. B. Sai Shibu, A. R. Devidas, M. Ramesh, G. M. Sukumar, Venkataramana Macharla
Renewable energy based rural electrification system experiences fluctuation in generation efficiency due to various unpredictable dynamic changes such as solar irradiation levels, rainfall, dust accumulation, vegetation, etc. Due to these fluctuations the system experiences frequent power quality issues such as low voltage, power interruptions, operating frequency deviation, etc., leading to the degradation of the performance and reliability of these solar micro grid systems. In this paper micro grid cluster interconnection methodology is proposed to improve the efficiency of the system. To develop real-time decisions on energy management and micro grid interconnections, we have designed an IoT system that is capable to monitor and learn the dynamic changes in power quality to control the subsystems for improving the quality of service. In this work we have analysed the need of such a system in one of the rural community having solar micro grid deployment in South India. Based on the needs we have designed and developed an end-to-end system consisting of perception layer, network layer and application layer. Detailed experimentation and evaluation was performed in our laboratory and the performance results are discussed in this paper.
基于可再生能源的农村电气化系统由于各种不可预测的动态变化,如太阳辐照水平、降雨、积尘、植被等,其发电效率会出现波动。由于这些波动,系统经常出现低电压、停电、运行频率偏差等电能质量问题,导致太阳能微网系统性能和可靠性下降。为了提高系统的效率,本文提出了微电网集群互联方法。为了制定能源管理和微电网互联的实时决策,我们设计了一个物联网系统,该系统能够监测和学习电能质量的动态变化,以控制子系统以提高服务质量。在这项工作中,我们分析了在印度南部一个拥有太阳能微电网部署的农村社区对这种系统的需求。根据需求,我们设计并开发了一个由感知层、网络层和应用层组成的端到端系统。在我们的实验室进行了详细的实验和评估,并对性能结果进行了讨论。
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引用次数: 4
Analysis of Capacity and Control Strategy for Distributed Energy System with Hybrid Energy Storage System 混合储能分布式能源系统容量及控制策略分析
Pub Date : 2018-05-01 DOI: 10.1109/ICSGCE.2018.8556829
Shili Lin, Changru Yang, Wenji Song, Z. Feng
In order to improve the operation efficiency of the combined cooling heating and power system (CCHP) in distributed energy system (DES), the hybrid energy storage technology combining battery energy storage system and heat storage system is proposed in this paper to be applied to DES with photovoltaic electric (PV). According to the mathematical models of gas turbine, PV system and other devices in DES, the energy flow model of the DES is first established in MATLAB and the boundary of the hybrid energy storage system (HESS) is determined. Moreover, the Power-Load-based control strategy is carried out and improved by researching the regulation effect of HESS and applied to the new DES which includes HESS and PV. Finally, the actual examples are analyzed to compare the load rate and running efficiency of the CCHP between traditional DES and the new DES. The results show that HESS could reduce the configuration capacity of CCHP and greatly improves its operation efficiency as well as the energy utilization efficiency of the overall system.
为了提高分布式能源系统(DES)中冷热电联产系统(CCHP)的运行效率,本文提出将电池储能系统与蓄热系统相结合的混合储能技术应用于光伏发电(PV)分布式能源系统(DES)。根据混合储能系统中燃气轮机、光伏系统等设备的数学模型,首先在MATLAB中建立了混合储能系统的能量流模型,确定了混合储能系统的边界。此外,通过研究HESS的调节效果,提出并改进了基于功率负荷的控制策略,并将其应用于包含HESS和PV的新型DES中。最后,通过实例分析,比较了传统DES和新型DES的热电联产负荷率和运行效率。结果表明,HESS可以减少热电联产的配置容量,大大提高热电联产的运行效率和整个系统的能源利用效率。
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引用次数: 12
A Novel Five-Level Inverter Topology with Reactive Power Control for Grid-Connected PV System 并网光伏系统无功控制的五电平逆变器拓扑
Pub Date : 2018-05-01 DOI: 10.1109/ICSGCE.2018.8556812
Mohammed Shihab Ibne Tarek, Asad Siam, Muhammad Zia, Md. Mizanur Rahman
These days multilevel inverters are more popular for grid-connected photovoltaic (PV) systems due to their low cost and high efficiency, as they effectively reduce total harmonic distortion (THD) and electromagnetic interference which results in lower leakage current. Traditional multi-level inverters can only inject real power that cannot provide quality output power. A new international standard VDE-AR-N4105 states that for a grid tied inverter of power rating below 3.6SkVA, a power factor (P)F of 0.95 leading to 0.95 lagging should be achieved. So, in this paper the proposed five-level inverter topology for grid-tie PV is controlled using a reactive power control method that ensures higher efficiency while enhancing the stability of the system. The proposed closed loop reactive power control technique additionally provides the ability to inject reactive power into the system. In this proposed topology the reactive power flow standard of operation is explained in details in relation to the proposed multi-level inverter topology. To validate the accuracy of the theoretical analysis, the control technique was applied to the existing multi-level inverter topology and then has been simulated in MATLAB/Simulink software. Comparisons were done on the basis of using and not using PLL for the existing multilevel topology and it is found that, synchronization is achieved with current and voltage if PLL is used, as a result PF is maintained close to unity whereas without PLL the PF decreases. Moreover the five-level output provides a much better output and better PF then other existing topologies.
目前,多电平逆变器由于其低成本和高效率,有效地降低了总谐波失真(THD)和电磁干扰,从而降低了泄漏电流,在并网光伏(PV)系统中越来越受欢迎。传统的多级逆变器只能注入实电,不能提供高质量的输出功率。新的国际标准VDE-AR-N4105规定,对于额定功率低于3.6SkVA的并网逆变器,应实现0.95的功率因数(P)F,从而实现0.95的滞后。因此,本文提出的并网光伏逆变器五电平拓扑结构采用无功功率控制方法进行控制,在保证效率的同时增强系统的稳定性。所提出的闭环无功控制技术还提供了向系统注入无功功率的能力。在此提出的拓扑中,详细解释了与所提出的多级逆变器拓扑相关的无功潮流标准。为了验证理论分析的准确性,将该控制技术应用于现有的多级逆变器拓扑结构中,并在MATLAB/Simulink软件中进行了仿真。对现有的多电平拓扑进行了使用和不使用PLL的比较,发现如果使用PLL可以实现电流和电压的同步,因此PF保持接近统一,而不使用PLL则使PF降低。此外,五级输出提供了比其他现有拓扑更好的输出和更好的PF。
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引用次数: 5
A Study of Logistic Regression-Based Discrimination Method of False Overcurrent Alarm of 500kV High-voltage Shunt Reactor 基于Logistic回归的500kV高压并联电抗器虚过流报警判别方法研究
Pub Date : 2018-05-01 DOI: 10.1109/ICSGCE.2018.8556698
Jian Gao, Shilin Feng, Qi Huang, Zhenyuan Zhang, Rongsen Luo, Yufei Teng
Based on the analysis of influence of transformer measuring error on accuracy of overcurrent alarm of 500 kV high-voltage shunt reactor, a logistic regression-based discrimination method of false overcurrent alarm of high-voltage shunt reactor is proposed. This method conducts Logistic regression by analyzing the voltage of the busbar where high-voltage shunt reactor is located as well as the alarm signal data. For low accuracy of instrument reactor, two false alarm criteria are defined according to regression coefficients. High-voltage shunt reactor on one actual 500kV transmission line is taken as the case study, measured data and simulation data are used for verification. Results of the case study show that without any need of blackout experiment or any additional measuring equipment, this method could rapidly recognize accuracy of overcurrent alarm of high-voltage shunt reactor with strong industrial application value.
在分析变压器测量误差对500kv高压并联电抗器过流报警精度影响的基础上,提出了一种基于logistic回归的高压并联电抗器过流误报判别方法。该方法通过分析高压并联电抗器所在母线电压和报警信号数据进行Logistic回归。针对仪表电抗器精度低的问题,根据回归系数定义了两个虚警判据。以某实际500kV输电线路高压并联电抗器为例,采用实测数据和仿真数据进行验证。实例研究结果表明,该方法不需要进行停电实验,也不需要额外的测量设备,可以快速识别高压并联电抗器过流报警的准确性,具有较强的工业应用价值。
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引用次数: 1
Implementation of Single Phase Cascaded H-Bridge Nine Level Inverter and Simulation Study with PI Controller 单相级联h桥九电平逆变器的实现及PI控制器的仿真研究
Pub Date : 2018-05-01 DOI: 10.1109/ICSGCE.2018.8556665
K. S. Kumar, J. Edward, Kudzai B Chimonyo, Munyaradzi Charles Rushambwa
A new single phase cascaded H-bridge nine level inverter is presented in this paper. The PWM technique using multicarrier based PD (phase disposition) strategy is used to generate the pulses with the help of AT89C51 microcontroller. By varying the modulation indices value to 0.25, 0.5, 0.75 and 1, accordingly different levels of output voltages such as 3, 5, 7 and 9 levels can be achieved with R-L load. The working principle of the proposed circuit with different modes is explained in detail. In order to keep the output voltage constant and to have high dynamic performance even in the change in load condition, PI controller is used as a closed loop and verified with MATLAB/SIMULINK. In the proposed 9 level inverter with the modulation index of 1, THD of 13.55% is achieved in the output voltage. Based on power circuit component count and DC source, the proposed inverter is compared with conventional topologies. To verify the performance of the proposed architecture, simulation and experimentations are carried out on a prototype in open loop and the respective results are presented.
本文提出了一种新型单相级联h桥九电平逆变器。在AT89C51单片机的帮助下,采用基于多载波PD(相位配置)策略的PWM技术产生脉冲。通过改变调制指标值为0.25、0.5、0.75和1,相应的R-L负载可以实现3、5、7、9级输出电压。详细阐述了该电路在不同模式下的工作原理。为了保持输出电压恒定,即使在负载条件变化时也具有较高的动态性能,采用PI控制器作为闭环,并通过MATLAB/SIMULINK进行验证。在调制指数为1的9电平逆变器中,输出电压的THD达到13.55%。基于功率电路元件数和直流电源,与传统拓扑进行了比较。为了验证所提出架构的性能,在开环的原型上进行了仿真和实验,并给出了各自的结果。
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引用次数: 2
Design and Implementation of Context Aware Cyber Physical System for Sustainable Smart Building 可持续智能建筑环境感知网络物理系统的设计与实现
Pub Date : 2018-05-01 DOI: 10.1109/ICSGCE.2018.8556726
Daniel Coll Sol, A. R. Devidas, A. S, M. Ramesh
This article introduces a practical and real approach to the implementation of a cyber physical system for the intelligent management of energy consumption in a traditional building. The main objective of this research work has been to deploy a context aware cyber physical system to analyze the behavior of key physical parameters in order to optimize the energy consumption with a minimum degradation of the working conditions of the users. The scope of the project has been limited to design and develop a prototype to study the technical and economic viability of the implementation of this kind of technology. The paper also presents a detailed analysis on the electrical systems and their possibilities to increase the efficiency in terms of energy and cost savings. This is the case of the lighting system whose behavior has shown how a 3% of the energy consumption can be saved. The study conducted proves the current economical non-viability of cyber physical systems in traditional buildings for their energy management. Nevertheless, the non-developed nor marketed technologies which will allow their technical and economic viability have been identified and described.
本文介绍了一种实现传统建筑能耗智能管理的网络物理系统的实际方法。本研究工作的主要目标是部署一个环境感知网络物理系统来分析关键物理参数的行为,以便在最小化用户工作条件退化的情况下优化能耗。该项目的范围仅限于设计和开发一个原型,以研究实施这种技术的技术和经济可行性。本文还详细分析了电气系统及其在能源和成本节约方面提高效率的可能性。这就是照明系统的例子,它的行为表明了如何节省3%的能源消耗。该研究证明了网络物理系统目前在传统建筑能源管理中的经济不可行性。然而,已确定和说明了使其具有技术和经济可行性的未开发的和已销售的技术。
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引用次数: 4
期刊
2018 International Conference on Smart Grid and Clean Energy Technologies (ICSGCE)
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