Title :
PWM VSI waveform control based on feedback and feedforward technology
Author :
Weinong, Guo ; Xuejuan, Kong ; Jian, Chen
Author_Institution :
Coll. of Electr. & Electron., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
This paper proposed a complex control with a various-gain controller to increase the quality of output waveform. First, the inverter is compared with the DC motor to show that the way used for a DC motor servo system can be easily applied to that of the inverter. Then, the complex control is analyzed in detail. In order to achieve low THD of the output waveform with all loads, a new kind of controller whose gain is changed according to the load current is used. Simulation and experimental result proved it.
Keywords :
PWM invertors; feedback; feedforward; gain control; DC motor servo system; PWM VSI waveform control; feedback technology; feedforward technology; inverter; load current; low THD; output waveform quality improvement; various-gain controller; Control systems; DC motors; Feedback; Filters; Load management; Pulse width modulation; Pulse width modulation inverters; Servomechanisms; Total harmonic distortion; Voltage control;
Conference_Titel :
Power Electronics and Drive Systems, 2001. Proceedings., 2001 4th IEEE International Conference on
Print_ISBN :
0-7803-7233-6
DOI :
10.1109/PEDS.2001.975393
