1. A Novel Five-Level Three-Phase PWM Rectifier With Reduced Switch Count.
- Author
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Itoh, Jun-ichi, Noge, Yuichi, and Adachi, Taketo
- Subjects
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ELECTRIC current rectifiers , *PULSE width modulation , *ELECTRIC power systems , *ELECTRIC switchgear , *CAPACITORS , *ELECTRIC potential , *CLAMPS (Engineering) , *CASCADE converters - Abstract
This paper proposes a new circuit topology for a multilevel pulse width modulation (PWM) rectifier. The proposed method forms a new circuit by combining a diode clamp-type topology with a flying capacitor-type topology. The proposed circuit uses only 12 switches, despite the use of a five-level three-phase PWM rectifier. Further, the proposed circuit can obtain good performance, same as a conventional multilevel circuit. This paper describes about the features of the proposed topology; the control strategy and the loss analysis that is estimated by a circuit simulator. In addition, the basic operation of the proposed method is confirmed by simulation and experimental results. The proposed converter achieved total harmonic distortion of 3.4% for the input current and efficiency of 97.4% for a 1 kW class experimental setup. [ABSTRACT FROM AUTHOR]
- Published
- 2011
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