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New PWM method for single-phase three-level PWM rectifiers

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4 Author(s)
Joong-Ho Song ; Div. of Electron. & Inf., Korea Inst. of Sci. & Technol., Seoul, South Korea ; Sung-Joon Cho ; Choy, I. ; Ju-Yeop Choi

This paper presents a simple switching method to generate a PWM pattern mostly relevant to single-phase three-level PWM rectifiers. The adopted PWM switching pattern is performed in a manner similar to the space vector PWM method, which is popularly used in three-phase rectifiers and inverters. A set of possible voltages is selected so that an equation with a time integral considered within a sampling period should be satisfied every sampling time. The simulation results show that the proposed control scheme produces good characteristics comparable to a conventional method of using a set of triangular carriers in some performance criteria such as unity power factor, low harmonic distortion of input current and voltage balancing of two series-connected DC capacitors

Published in:

Industrial Electronics, 1997. ISIE '97., Proceedings of the IEEE International Symposium on  (Volume:2 )

Date of Conference:

7-11 Jul 1997