A Simple Method to Improve the Dynamic Response of Single-Phase PWM Rectifiers

作者：Ghosh Rajesh^*; Narayanan G

来源：IEEE Transactions on Industrial Electronics, 2008, 55(10): 3627-3634.

DOI：10.1109/TIE.2008.928113

• AC-DC power conversion
• boost rectifier
• current control
• digital control
• dynamic response

A single-phase boost rectifier system with conventional low-bandwidth voltage loop exhibits poor dynamic response. A simple method is presented to improve the dynamic response of the rectifier without affecting its steady-state performance. A fast voltage controller is used to improve the dynamic response of the rectifier. The increased low-frequency ripple at the output of the voltage controller is filtered out using a new filter. Design methodology for the voltage loop is presented. The filter is simple enough for analog and digital implementations. Low input current distortion, fast voltage-loop response, and improved dynamic response against line and load disturbances are demonstrated experimentally on a 300-W digitally controlled boost rectifier operating at a switching frequency of 100 kHz.

• 出版日期2008-10