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| Power Pulse Sequential Combination and Logical Combination in Power Electronics |
| Chen Kainan, Zhao Zhengming, Yuan Liqiang |
| State Key Lab of Control and Simulation Power System and Generation Equipment Department of Electrical Engineering Tsinghua University Beijing 100084 China |
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Abstract This paper focuses on the basic theories of pulse combination in power electronics. The concept, method and realization of power pulse sequential combination and logical combination are summarized and analyzed. Aiming at the limitations of power pulse sequential combination, the power pulse (sequence) logical combination, as well as the methods and applications, is introduced. Both typical methods based on different pulse logical combination ideas, i.e. multilevel technology and frequency multiplication strategy, are effective in improving the performances of system. Thus, taken the power electronics amplifier as an analysis object, their harmonic characteristics and applicability are compared and contrasted. With the study of pulse combination methodology in power electronics, the relative technologies can be systematically understood, moreover, novel pulse combination and realization methods can be expanded. It is helpful to promote the development of power electronics.
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Received: 08 April 2017
Published: 19 July 2017
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2017, Vol. 32 
