全球能源互联网（英文）2020，Vol.3Issue(4)：365-374,10.DOI:10.14171/j.2096-5117.gei.2020.04.007
基于模型预测控制的弱送端可再生能源电站电压协调控制
Coordinated voltage control of renewable energy power plants in weak sending-end power grid
摘要
Abstract
The utilization of renewable energy in sending-end power grids is increasing rapidly, which brings difficulties to voltage control. This paper proposes a coordinated voltage control strategy based on model predictive control (MPC) for the renewable energy power plants of wind and solar power connected to a weak sending-end power grid (WSPG). Wind turbine generators (WTGs), photovoltaic arrays (PVAs), and a static synchronous compensator are coordinated to maintain voltage within a feasible range during operation. This results in the full use of the reactive power capability of WTGs and PVAs. In addition, the impact of the active power outputs of WTGs and PVAs on voltage control are considered because of the high R/X ratio of a collector system. An analytical method is used for calculating sensitivity coefficients to improve computation efficiency. A renewable energy power plant with 80 WTGs and 20 PVAs connected to a WSPG is used to verify the proposed voltage control strategy. Case studies show that the coordinated voltage control strategy can achieve good voltage control performance, which improves the voltage quality of the entire power plant.关键词
电压协调控制/模型预测控制/可再生能源/弱送端电网/风力发电机/光伏阵列/静止同步补偿器Key words
Coordinated voltage control/Model predictive control (MPC)/Renewable energy/Weak sending-end power grid/Wind turbine generators (WTGs)/Photovoltaic arrays (PVAs)/STATCOM引用本文复制引用
Yongning Chi,Weihao Li,Qiuwei Wu,Chao Liu..基于模型预测控制的弱送端可再生能源电站电压协调控制[J].全球能源互联网（英文）,2020,3(4):365-374,10.基金项目
This work was supported by National Natural Science Foundation Joint Key Project of China (2016YFB0900900). （2016YFB0900900）
