摘要
为解决分布式光伏接入造成的配电网电压越限问题,基于配电网同步相量测量单元(distribution phasor measurement unit,DPMU)量测信息对含光伏配电网进行在线状态估计,通过灵敏度分析在线提取电压最优控制梯度。根据模型预测控制理论,建立了协调广域范围内静止无功补偿装置(static var compensor,SVC)、光伏逆变器等多种调压设备的电压控制模型,考虑实时电压控制与离散电容器动作的配合,提出了馈线电压闭环控制策略。对IEEE 33节点算例进行仿真分析,验证了所提电压实时控制策略的有效性和快速性。
In order to solve the voltage violation in distribution network caused by the access of distributed photovoltaic,the state of the photovoltaic-containing distribution network is estimated online based on the distribution phasor measurement unit (DPMU) measurement information.Then,the voltage optimal control gradient is extracted online through sensitivity analysis.According to the MPC theory,a voltage control model is established to coordinate various voltage regulating devices including static var compensor (SVC) and photovoltaic inverter in a wide-area range.Considering the cooperation between real-time voltage control and action of discrete capacitor,a closed-loop control strategy of feeder voltage is proposed.The simulation analysis of the IEEE 33-bus example is carried out to verify the effectiveness and rapidity of the proposed real-time voltage control strategy.
作者
贾宇乔
徐箭
廖思阳
于力
JIA Yuqiao;XU Jian;LIAO Siyang;YU Li(School of Electrical Engineering and Automation,Wuhan University,Wuhan 430072,China;Electric Power Research Institute,CSG,Guangzhou 510663,China)
出处
《南方电网技术》
CSCD
北大核心
2019年第4期100-106,共7页
Southern Power System Technology
基金
国家重点研发计划项目(2017YFB092900,2017YFB0902904)~~
关键词
分布式光伏
电压越限
DPMU量测信息
电压控制梯度
模型预测控制
distributed photovoltaic
voltage violation
DPMU measurement information
voltage control gradient
model predictive control
