Title :
Small-signal modeling and control of three-phase PWM converters
Author :
Hiti, Silva ; Boroyevich, Dushan ; Cuadros, Carlos
Author_Institution :
Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
Abstract :
The paper presents a systematic approach to small-signal modeling, and control design of three-phase PWM converters. The well established design procedures used in DC-DC converter control design, are adapted for the three-phase converter control based on the similarity in the small-signal dynamics of the three-phase converters and their DC-DC counterparts. The approach is especially beneficial in three-phase rectifier control, which is reduced to a single-input single-output system after closing the current loops. The modeling approach is verified on a 10 kW three-phase boost rectifier switching at 15.6 kHz with DSP control. A wide-bandwidth output voltage control loop is then designed based on the verified small-signal transfer functions
Keywords :
PWM power convertors; closed loop systems; digital control; digital signal processing chips; electric current control; power engineering computing; rectifiers; rectifying circuits; switching circuits; transfer functions; voltage control; 10 kW; 15.6 kHz; DSP control; control; current loops closing; rectifier control; single-input single-output system; small-signal modeling; switching; three-phase PWM converters; three-phase boost rectifier; transfer functions; wide-bandwidth output voltage control loop; Control design; Filters; Power system modeling; Pulse width modulation; Pulse width modulation converters; Pulse width modulation inverters; Rectifiers; Sliding mode control; Switches; Switching frequency;
Conference_Titel :
Industry Applications Society Annual Meeting, 1994., Conference Record of the 1994 IEEE
Conference_Location :
Denver, CO
Print_ISBN :
0-7803-1993-1
DOI :
10.1109/IAS.1994.377572
