Single-phase Z-source PWM AC-AC converters

  title={Single-phase Z-source PWM AC-AC converters},
  author={Xu Peng Fang and Zhao Ming Qian and Fang Zheng Peng},
  journal={IEEE Power Electronics Letters},
The letter proposes a new family of simple topologies of single-phase PWM ac-ac converters with a minimal number of switches: voltage-fed Z-source converter and current-fed Z-source converter. By PWM duty-ratio control, they become "solid-state transformers" with a continuously variable turns ratio. All the proposed ac-ac converters in this paper employ only two switches. Compared to the existing PWM ac-ac converter circuits, they have unique features: providing a larger range of output ac… CONTINUE READING
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