Design and Implementation of H°o Controller for Three-Phase PWM Rectifiers
For the three-phase pulse-width modulated (PWM) rectifiers, the controllers performance can be influenced by the mathematic model error, parameter variation and external disturbances, etc. This paper presents a robust Hoc control method for the PWM rectifiers to improve the control performance. The outer voltage loop controller and the inner current loop controller are designed separately. Based on the mathematical model of the PWM rectifiers, state equations of the voltage and current loop are established separately for the standard setup Hoo control problem with suitable weighting functions. In order to derive the algorithm of the designed controllers, the Riccati equations are solved separately. Simulation results demonstrate that the designed Hoo controller is suitable for the PWM rectifiers and has a better external disturbance rejection capability compared with the conventional PI controller.
PWM rectifiers hoo control weighting functions
Rui-wen Yu Hui Zhang Guo-jun Tan
School of Information and Electrical Engineering China University of Mining and Technology Xuzhou, China
国际会议
太原
英文
69-72
2010-10-22（万方平台首次上网日期，不代表论文的发表时间）