Direct Power Control without Current Sensors for Nine-Switch Inverters

Lei Pan; Junru Zhang; Kai Wang; Beibei Wang; Yi Pang; Lin Zhu

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자료유형: 학술저널

저자정보: Lei Pan (Tianjin Chengjian University) Junru Zhang (Tianjin Chengjian University) Kai Wang (Tianjin Chengjian University) Beibei Wang (Tianjin Chengjian University) Yi Pang (Tianjin Chengjian University) Lin Zhu (Tianjin Chengjian University)

저널정보: 전력전자학회 JOURNAL OF POWER ELECTRONICS JOURNAL OF POWER ELECTRONICS Vol.18 No.1

발행연도: 2018.1

수록면: 1 - 10 (10page)

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Recently, the nine-switch inverter has been proposed as a dual output inverter. To date, studies on the control strategies for NSIs have been mostly combined with their application. However, in this paper, a mathematical model and control strategy for nine-switch inverters has been proposed in view of the topology. A switching function model and equivalent circuit model of a nine-switch inverter have been built in αβ coordinates. Then, a novel current observer with an improved integrator is proposed based on the switching function model, and a direct power control strategy is proposed. No current sensors are used in the proposed strategy, and only two voltage sensors are employed. The performance of the proposed control method is verified by simulation and experimental results.

#Current observer #Direct power control #Nine-switch converter #Switching function

참고문헌 (25)

참고문헌 신청

T. Kominami and Y. Fujimoto, “A novel nine-switch inverter for independent control of two three-phase loads,” in Proc. IEEE Ind. Appl. Soc. Annu. Conf. (IAS), pp. 2346-2350, 2007. B. Tabbache, M. A. Allel, M. Abbache, and A. Belila, “A pulse width modulation strategy for DC-AC nine switches inverter,” in 15th International Conference on Environment and Electrical Engineering, pp. 877-882, 2015. J. S. S. Prasad, R. Ghosh, and G. Narayanan, “Common- mode injection PWM for parallel converters,” IEEE Trans. Ind. Electron., Vol. 62, No. 2, pp. 789-794, Feb. 2015. F. Gao, L. Zhang, D. Li, P. C. Loh, Y. Tang, and H. Gao, “Optimal pulsewidth modulation of nine-switch converter,” IEEE Trans. Power Electron., Vol. 25, No. 9, pp. 2331-2343, Sep. 2010. F. Gao, L. Zhang, and P. Loh, “Dead-time elimination of nine-switch converter,” in Applied Power Electronics Conference and Exposition (APEC), pp. 673-678, 2011.

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