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논문 기본 정보

자료유형
학술저널
저자정보
Ammar Masaoud (University of Malaya) Hew Wooi Ping (University of Malaya) Saad Mekhilef (University of Malaya) Ayoub Taallah (University of Malaya) Hamza Belkamel (University of Malaya)
저널정보
전력전자학회 JOURNAL OF POWER ELECTRONICS JOURNAL OF POWER ELECTRONICS Vol.14 No.2
발행연도
2014.3
수록면
292 - 301 (10page)

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초록· 키워드

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This paper presents a new configuration for a three-phase multilevel voltage source inverter. The main bridge is built from a classical three-phase two-level inverter and three bidirectional switches. A variable DC-link employing two unequal DC voltage supplies and four switches is connected to the main circuit in such a way that the proposed inverter produces four levels in the output voltage waveform. In order to obtain the desired switching gate signals, the fundamental frequency staircase modulation technique is successfully implemented. Furthermore, the proposed structure is extended and compared with other types of multilevel inverter topologies. The comparison shows that the proposed inverter requires a smaller number of power components. For a given number of voltage steps N, the proposed inverter requires N/2 DC voltage supplies and N+12 switches connected with N+7 gate driver circuits, while diode clamped or flying capacitor inverters require N-1 DC voltage supplies and 6(N-1) switches connected with 6(N-1) gate driver circuits. A prototype of the introduced configuration has been manufactured and the obtained simulation and experimental results ensure the feasibility of the proposed topology and the validity of the implemented modulation technique.

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Abstract
Ⅰ. INTRODUCTION
Ⅱ. PROPOSED TOPOLOGY AND OPERATION PRINCIPLE
Ⅲ. EXTENDED STRUCTURE
Ⅳ. EXPERIMENTAL RESULTS
Ⅴ. CONCLUSIONS
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UCI(KEPA) : I410-ECN-0101-2015-500-001245949