Title :
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
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;
Conference_Titel :
Machine Learning and Cybernetics (ICMLC), 2010 International Conference on
Conference_Location :
Qingdao
Print_ISBN :
978-1-4244-6526-2
DOI :
10.1109/ICMLC.2010.5580603
