电力系统保护与控制Issue(18)：120-125,6.
基于子空间的LQG控制及其在光伏并网逆变器的应用
Subspace based LQG control and its application in the grid-connected PV inverter
杜丽媛 1杨富文 1陈建民1
作者信息
- 1. 华东理工大学信息科学与工程学院,上海,200237
- 折叠
摘要
Abstract
Nowadays model based predictive control is widely used in grid-connected inverter current control, however, modeling accuracy is the key factor that affects its performance. In order to avoid the complex and time consuming modeling process, model free subspace based Linear Quadratic Gaussian (LQG) control strategy is proposed. Input and output measurements are utilized in the subspace predictor design, and then the predictor is used in model free predictive LQG control. This novel approach is applied to the grid-connected photovoltaic (PV) inverter control system. Simulation results show the inverter’s output current could comply with grid standards, which also verify good dynamical performance and strong robustness of the proposed method.关键词
预测控制/子空间/LQG控制/光伏并网逆变器/Simulink仿真Key words
predictive control/subspace/LQG control/grid-connected PV inverter/Simulink simulation分类
信息技术与安全科学引用本文复制引用
杜丽媛,杨富文,陈建民..基于子空间的LQG控制及其在光伏并网逆变器的应用[J].电力系统保护与控制,2013,(18):120-125,6.
