| 引用本文: | 张虹,侯宁,葛得初,孔冠荀.基于LMI的交直流混合微网断面电压非脆弱鲁棒H∞控制[J].电力系统保护与控制,2019,47(11):79-86.[点击复制] |
| ZHANG Hong,HOU Ning,GE Dechu,KONG Guanxun.Non-fragile robust H∞ voltage control of AC-DC interface based on linear matrix inequalities in AC-DC hybrid microgrid[J].Power System Protection and Control,2019,47(11):79-86[点击复制] |
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| 摘要: |
| 以交直流混合微网为研究背景，对其中用于实现混合微网能量互济的交直流断面系统展开研究。考虑系统中存在的不确定性和脆弱性，采用非脆弱鲁棒H∞控制方法以稳定交直流母线电压。同时为兼顾系统的动态响应特性，结合LMI(Linear Matrix Inequalities)区域极点配置，设计交直流断面系统非脆弱鲁棒 稳定控制器。仿真研究表明，所设计的控制器在参数不确定、存在外界干扰和控制器增益摄动情况下具有较好的控制性能，满足混合微网交直流断面系统对稳定性、鲁棒性和高精度控制的要求。 |
| 关键词: 交直流断面 控制器增益摄动 非脆弱鲁棒H∞控制 LMI 区域极点配置 |
| DOI：10.7667/PSPC20191111 |
| 投稿时间：2018-07-17修订日期：2018-10-03 |
| 基金项目:国家自然科学基金项目资助(51777027);吉林省科技计划重点研发项目资助(20180201010GX) |
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| Non-fragile robust H∞ voltage control of AC-DC interface based on linear matrix inequalities in AC-DC hybrid microgrid |
| ZHANG Hong,HOU Ning,GE Dechu,KONG Guanxun |
| (School of Electrical Engineering, Northeast Electric Power University, Jilin 132012, China;State Grid Changchun Power Supply Company, Changchun 130021, China) |
| Abstract: |
| In this paper, the AC-DC interface system is studied to realize energy mutual aid in hybrid microgrid. Considering the uncertainties and fragilities of the system, the non-fragile robust H-infinity control is adopted to stabilize the AC-DC bus voltages. At the same time, taking the dynamic response characteristics into account, combined with the Linear Matrix Inequalities (LMI) regional pole placement method, and the non-fragile robust stability controller is proposed for the AC-DC interface system. Simulation results show that the designed controller has better control performances with respect to uncertain parameters, external disturbances and controller gain perturbations, which satisfy the requirements of stability, robustness and high precision control of AC-DC interface system in hybrid microgrid. This work is supported by National Natural Science Foundation of China (No. 51777027) and Key Research and Development of Technology Plan of Jilin Province (No. 20180201010GX). |
| Key words: AC-DC interface system controller gain perturbations non-fragile robust H∞ control linear matrix inequalities (LMI) regional pole placement |
