基于蒙特卡洛的配电网光伏消纳能力评估  

Evaluation of Photovoltaic Consumption Capacity of Distribution Network Based on Monte Carlo Method

作　　者：郭杉[1] 张源渊 贾俊青[1] 杨洋 GUO Shan;ZHANG Yuanyuan;JIA Junqing;YANG Yang(State Grid Inner Mongolia Power Research Institute,Hohhot 010020,China;State Grid Hohhot Power Supply Bureau,Hohhot 010020,China)

机构地区：[1]内蒙古电力科学研究院,呼和浩特010020 [2]呼和浩特供电局,呼和浩特010020

出　　处：《浙江电力》2021年第6期8-14,共7页Zhejiang Electric Power

基　　金：内蒙古电力(集团)有限责任公司2019年科技项目(2019-66)。

摘　　要：大容量分布式光伏集中接入配电系统,可引起并网点局部过电压问题。为解决过电压问题,从规划及运行控制两方面入手,首先给出一种基于蒙特卡洛的多场景光伏消纳能力评估方法,以电压合格率及有功网损率作为评价指标。考虑到各场景均需潮流计算,引入基于电压敏感度因子的估算方法,降级计算开销。在运行方面,在分析现有逆变器参与调压的控制策略的基础上,给出一种有功-无功协同控制方法。最后利用Python程序语言实现相关算法,在IEEE 33模型加以测试,测试结果证明了方法的有效性。Integration of large-capacity distributed photovoltaic(DP)system into the power distribution system can cause local overvoltage at the integration point.For the sake of overvoltage prevention,this paper,concerning planning and operation control,presents a multi-scenario photovoltaic consumption capacity evaluation method based on Monte Carlo with evaluation indexes of voltage eligibility rate and active power loss rate.Given the necessary power flow calculation in all scenarios,an estimation method based on voltage sensitivity factor was introduced to reduce overhead.In terms of operation,a coordinated active and reactive power control method is presented based on the analysis of the existing control schemes of the inverter participating in the voltage regulation.Finally,the proposed algorithms were implemented by using Python and tested on the IEEE 33 model.The test results proved the effectiveness of the methods.

关 键 词：蒙特卡洛 光伏消纳 电压敏感度 有功无功协同 粒子群优化 

分 类 号：TM761[电气工程—电力系统及自动化]