Title :
Digital control without line voltage sensing for a three phase bidirectional inverter
Author :
Hao, Feiqin ; Fang, Yu ; Wang, Ru ; Xing, Yan ; Ma, Yundong
Author_Institution :
Nanjing Univ. of Aeronaut. & Astronaut., Nanjing
Abstract :
A three-phase PWM bidirectional converter system based on line voltage oriented vector control is researched. A novel on line voltage oriented vector control without line voltage sensing is proposed. The system is operated with unit power factor in the side of AC line no matter in rectifier mode or active inverter mode. The alpha and beta components of line voltage were estimated by the line current, switch signal and DC voltage, so the reliability is increased and the cost is decreased. The proposed control has been digitally implemented with TMS320F2808 and the feasibility has been verified by simulation and experimental results.
Keywords :
PWM invertors; PWM power convertors; digital control; power factor; voltage control; PWM bidirectional converter; active inverter mode; digital control; line voltage oriented vector control; line voltage sensing; rectifier mode; three phase bidirectional inverter; unit power factor; Costs; Digital control; Power system reliability; Pulse width modulation; Pulse width modulation converters; Pulse width modulation inverters; Reactive power; Rectifiers; Switches; Voltage;
Conference_Titel :
Electrical Machines and Systems, 2008. ICEMS 2008. International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-3826-6
Electronic_ISBN :
978-7-5062-9221-4
