The Study of 3-Phase Bi-Directional DC to AC Inverter for the Bi-Model PV PCS
자립형 태양광 발전 시스템을 위한 3상 양방향 DC-AC 인버터 연구
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Yang, Seung-Dae
(Dept. of Embedded SW, Kwangwoon University)
;
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Jung, Seung-Hwan
(Dept. of Information and Control Engineering, Kwangwoon University)
;
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Choi, Ju-Yeop
(Dept. of Electrical Engineering, Kwangwoon University)
;
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Choy, Ick
(Dept. of Information and Control Engineering, Kwangwoon University)
;
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Lee, Young-Kwon
(Keumbee Electronics Co.)
- Published : 2012.03.29
Abstract
This paper presents the study of 3-Phase bi-directional DC to AC inverter with unity power factor. 3-Phase bi-directional DC to AC inverter is important for the bi-modal PV PCS with an energy storage system. Both Inverting and converting are needed to connect between the grid side and boost converting side to charge and discharge the energy storage system. The paper proposes the appropriate circuit topology and proper control system for the bi-directional inverter. It also proposes the method of selecting the optimum control method considering system stability. PSIM simulation is used to validate the proposed algorithm.
Keywords