Title :
Novel reduced-order small-signal model of a three-phase PWM rectifier and its application in control design and system analysis
Author :
Mao, Hengchun ; Boroyevich, Dushan ; Lee, Fred C Y
Author_Institution :
AT&T Bell Labs., Mesquite, TX, USA
fDate :
5/1/1998 12:00:00 AM
Abstract :
A reduced-order (RO) small-signal model of three-phase pulse-width-modulation (PWM) rectifiers is proposed. By combining the PWM switch model and equivalent multimodule model techniques in DC-DC converters, a three-phase rectifier can be modeled as a DC-DC converter with equivalent power capability and small-signal characteristics. This model reduces the system order to two and greatly simplifies the control design and system analysis of three-phase converters. In this paper, the proposed model is also used for control design and for system interaction analysis on the three-phase interface of a boost rectifier. The RO model is verified with the d-q model, switching-model simulation, and experimental results
Keywords :
DC-DC power convertors; PWM power convertors; power factor correction; rectifying circuits; reduced order systems; stability; switching circuits; DC-DC converters; PWM switch model; boost rectifier; control design; d-q model; equivalent multimodule model techniques; equivalent power capability; power factor correction; pulse-width-modulation; reduced-order small-signal model; small-signal characteristics; stability; switching-model simulation; system analysis; system interaction analysis; three-phase PWM rectifier; three-phase interface; Control design; Equations; Power factor correction; Power system modeling; Pulse width modulation; Pulse width modulation converters; Rectifiers; Space vector pulse width modulation; Switches; Switching converters;
Journal_Title :
Power Electronics, IEEE Transactions on
