Analysis of an H∞ Robust Control for a Three-Phase Voltage Source Inverter

被引:5
|
作者
Rasool, Muhammad Ahmad Usman [1 ]
Khan, Muhammad Mansoor [1 ]
Ahmed, Zahoor [1 ]
Saeed, Muhammad Abid [1 ]
机构
[1] Shanghai Jiao Tong Univ, Sch Elect Informat & Elect Engn SEIEE, Shanghai 200240, Peoples R China
基金
美国国家科学基金会; 国家重点研发计划;
关键词
power quality; robust control; predictive control; DC; AC; inverters;
D O I
10.3390/inventions4010018
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Recently, power quality improvement has gained a lot of attention due to the rapidly increasing use of power electronics equipment. Several control strategies for DC/AC Voltage Source Inverters (VSI) have been developed to obtain good quality output with low harmonic distortion. This paper proposes a robust control scheme to improve the power quality of a three-phase DC/AC VSI. The control scheme includes an outer voltage loop and an inner current loop, with both controllers designed by the standard H infinity robust control technique. The system with the proposed controller has a low total harmonic distortion (THD) and improved power quality of output voltage in the presence of linear and non-linear loads. The simulation is carried out in MATLAB/Simulink environment, and the results of the proposed control scheme are compared with the performance of dead-beat (DB) predictive control and conventional proportional integral (PI) control. It is observed from the results that the proposed control scheme outperforms other control schemes in terms of the THD level, having a better steady-state and transient performance.
引用
收藏
页数:15
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