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Digital Noninterleaved High-Power Totem Pole PFC Based on Internal Model Design

Author

Listed:
  • Fei Gao
  • Rongfei Xia
  • Yifei Chen
  • Yongjian Feng

Abstract

When the control signal of totem pole PFC with GaN HEMTs is a function of measurable state variables, the state feedback gain matrix can be determined by applying state variable feedback control with Ackerman formula, so that the poles of closed-loop system can be allocated to the desired position. This correction method is especially beneficial to optimal system control according to performance requirements. By introducing the internal model of reference input, a state space function including the first-order and second-order differential of error is constructed; this novel controller makes controlled system track the reference input signal progressively with zero steady-state error. A 4 kW PFC prototype is designed to verify this design method.

Suggested Citation

  • Fei Gao & Rongfei Xia & Yifei Chen & Yongjian Feng, 2019. "Digital Noninterleaved High-Power Totem Pole PFC Based on Internal Model Design," Mathematical Problems in Engineering, Hindawi, vol. 2019, pages 1-10, April.
    • Handle: RePEc:hin:jnlmpe:4368324
    DOI: 10.1155/2019/4368324
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