• CSCD核心库收录期刊
  • 中文核心期刊
  • 中国科技核心期刊

电力建设 ›› 2015, Vol. 36 ›› Issue (11): 17-23.doi: 10.3969/j.issn.1000-7229.2015.11.003

• 配电网规划专栏 • 上一篇    下一篇

基于序贯蒙特卡罗法的复杂配电网可靠性分析

李江1,刘伟波1,李国庆1,支新2,欧阳斌2,陈翔雁2   

  1. 1.东北电力大学电气工程学院,吉林省吉林市 132012;2.江西省电力公司赣西供电分公司,江西省新余市 338025
  • 出版日期:2015-11-01
  • 作者简介:李江(1979),男,博士,副教授,主要从事电力系统分析的研究工作; 刘伟波(1990),男,硕士研究生,研究方向为配电网可靠性分析; 李国庆(1963),男,博士生导师,教授,研究方向为电力系统分析。
  • 基金资助:

    吉林省教育厅“十二五”科学技术研究项目[吉教科合字[2014]第108号]。

Reliability Analysis of Complex Distribution Network Based on Sequential Monte Carlo Method

LI Jiang1, LIU Weibo1, LI Guoqing1,ZHI Xin2, OUYANG Bin2, CHEN Xiangyan2   

  1. 1.    Northeast Dianli University College of Electrical Engineering, Jilin 132012, Jilin Province, China;2.   Jiangxi Power Company Ganxi Power Supply Branch, Xinyu 338025, Jiangxi Province, China
  • Online:2015-11-01

摘要:

光伏发电具有随机性和间歇性的特点,使得配电网的可靠性存在下行风险。针对含光伏电源的配电网系统,传统的可靠性评估方法往往忽略光伏系统对可靠性的影响。利用序贯蒙特卡罗法对配网进行可靠性分析,考虑太阳光辐照度、光伏输出功率、时序故障率等因素的影响,建立基于时间序列的光伏发电系统可靠性模型;同时构建了考虑负荷功率随机性的中、短期负荷(月、小时)可靠性模型;最后引入可靠性灵敏度指标,评估了不同节点接入光伏发电系统后的可靠性。通过对含光伏发电系统配电网算例系统的可靠性进行评估,结果证明了算法的有效性,该方法为光伏接入位置的选择、容量的确定和配网可靠性的提高提供了重要的理论依据。

关键词: 光伏发电, 配电网, 间歇性, 序贯蒙特卡洛法, 时序故障率, 可靠性灵敏度

Abstract:

 

Photovoltaic (PV) generation has characteristics of randomness and intermittent, thus the reliability of distribution network has down-side risk. In distribution network with PV power, the traditional reliability assessment methods often neglect the influence of PV system on the reliability. This paper used the sequential Monte Carlo method to analyze the reliability of distribution network with considering of the impacts of sunlight irradiance, PV output power, timing failure rate and other factors and established a PV system reliability model based on time series. Meanwhile, considering the power of real-time load, the medium and short-term load (month, hour) reliability models were constructed. Finally, this paper introduced reliability sensitivity index to evaluate the reliability after different nodes accessing PV generation system. According to the reliability assessment of distribution network example system with PV generation system, the results prove the effectiveness of the proposed algorithm, which can provide important theoretical significance for the determination of accessing location and capacity of PV, as well as the reliability improvement of distribution network.

Key words: photovoltaic generation, distribution network, intermittent, sequential Monte Carlo method, timing failure rate, reliability sensitivity

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