Integral control of three-phase PWM rectifier-inverter based on Euler-Lagrangian model

Author

Li, Guang-ye ; Wan, Jian-ru ; Yuan, Chen-hu ; Zhou, Hai-liang ; Ruan, Qing-jun

Author_Institution

Inst. of Electr. & Autom. Eng., Tianjin Univ., Tianjin, China

Volume

2

fYear

2010

fDate

11-14 July 2010

Firstpage

922

Lastpage

926

Abstract

For fluctuations of the DC bus voltage in dual PWM motor drive system, which is caused by the frequent changes in motor running, the generation mechanism is analyzed. A new control strategy for dual PWM system is proposed, which is based on EL model and the load power feed forward. By using DC steady state voltage compensation and the Power load forecasting, the stable DC voltage and the unity power factor is obtained based on a small DC capacitor. Besides, the bidirectional energy flow is achieved. The simulative result verified this method.

Keywords

PWM invertors; feedforward; load forecasting; machine control; motor drives; DC bus voltage; DC steady state voltage compensation; Euler-Lagrangian model; bidirectional energy flow; control strategy; dual PWM motor drive system; generation mechanism; integral control; load power feed forward; power load forecasting; three-phase PWM rectifier-inverter; Capacitors; Inverters; Pulse width modulation; Rectifiers; Stators; Steady-state; Voltage control; DC steady state voltage compensation; Dual PWM; EL-model; no-linear Control; power feedback;

fLanguage

English

Publisher

ieee

Conference_Titel

Machine Learning and Cybernetics (ICMLC), 2010 International Conference on

Conference_Location

Qingdao

Print_ISBN

978-1-4244-6526-2

Type

conf

DOI

10.1109/ICMLC.2010.5580603

Filename

5580603