Unity PF current-source rectifier based on dynamic trilogic PWM
- McGill Univ., Montreal, Quebec (Canada). Dept. of Electrical Engineering
One remaining step in perfecting the stand-along, unity power factor, regulated current-source PWM rectifier is to reduce cost, by bringing the 12-valve converter (consisting of three single-phase full bridges that operate with two-level or bilogic PWM) to the six-valve bridge. However, the six-valve topology requires a three-level or trilogic PWM strategy that can handle feedback signals. This feature was not available until now. The paper describes a general method of translating three-phase bilogic PWM signals to three-phase trilogic PWM signals. The method of translation retains the characteristics of the bilogic PWM, including the frequency bandwidth. Experiments show that the trilogic PWM signals produced by the method can not only handle stabilizing feedback signals but also signals for active filtering.
- OSTI ID:
- 5887905
- Journal Information:
- IEEE Transactions on Power Electronics (Institute of Electrical and Electronics Engineers); (United States), Vol. 8:3; ISSN 0885-8993
- Country of Publication:
- United States
- Language:
- English
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