文章摘要
雷敏,魏务卿,曾进辉,等.考虑需求响应的负荷控制对供电可靠性影响分析[J].电力系统自动化,2018,42(10):53-59. DOI: 10.7500/AEPS20180115017.
LEI Min,WEI Wuqing,ZENG Jinhui, et al.Effect of Load Control on Power Supply Reliability Considering Demand Response[J].Automation of Electric Power Systems,2018,42(10):53-59. DOI: 10.7500/AEPS20180115017.
考虑需求响应的负荷控制对供电可靠性影响分析
Effect of Load Control on Power Supply Reliability Considering Demand Response
DOI:10.7500/AEPS20180115017
关键词: 需求响应  分时电价  激励措施  负荷控制  可靠性评估
KeyWords: demand response  time-of-use electricity price  incentive measure  load control  reliability assessment
上网日期:2018-03-26
基金项目:
作者单位E-mail
雷敏 湖南工业大学电气与信息工程学院, 湖南省株洲市 412007 leimin2015@aliyun.com 
魏务卿 湖南工业大学电气与信息工程学院, 湖南省株洲市 412007  
曾进辉 湖南工业大学电气与信息工程学院, 湖南省株洲市 412007  
莫霜叶 湖南工业大学电气与信息工程学院, 湖南省株洲市 412007  
摘要:
      需求响应一般分为基于电价与激励两种模式,采取需求响应的目的是降低峰时段负荷,减少运行风险。研究的重点是构建包含负荷控制的分时电价负荷模型,分析同时采用负荷控制激励模式与分时电价两种需求响应措施后负荷变化对电网可靠性的影响,从不同角度分析两种模式下配电网运行情况,并提出一种新的通过负荷曲线聚类来计算配电网在动态负荷下的可靠性方法。通过引入改进的k-means聚类算法对不同需求响应模式下的负荷曲线聚类,得到负荷概率模型,结合蒙特卡洛模拟方法来计算不同负荷水平下最终的配电网可靠性指标,分析了在需求响应不同模式下的负荷变化对配电网可靠性影响。算例结果表明,需求响应措施能提高系统可靠性,且包含负荷控制激励的分时电价比单一措施下的可靠性更高。
Abstract:
      The demand response(DR), which is adopted to decrease peak load and operational risk, is generally divided into electricity price based DR and incentive based DR. The focus of this research is to construct a time-of-use load model that contains load control and analyies the impact of load changes on power system reliability by using two kinds of DR measures, that is incentive mode of load control and time-of-use electricity price, power grid reliability, which analyzes the two operation modes of the distribution networks from different perspectives. Furthermore, a new method of calculating the reliability of distribution network under dynamic load by load curves clustering is proposed. By introducing the improved k-means clustering algorithm, the load probability model on different DR load curve is obtained. The reliability indices of distribution network under different load levels are calculated by Monte Carlo method, and the influence of DR on the reliability of distribution network is analyzed. The results of the example show that the demand response measures can improve the system reliability, and the time-of-use electricity price including the load control is more reliable than the single measure.
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