Capacitors Energy Strategy Based Cascaded H-Bridge Converter for DC Port Failures

Xu Peng; Xiaohan Liu; Guolong Yang; Xijun Liu; Lixia Gao; Xinyu Zhu

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자료유형: 학술저널

저자정보: Xu Peng (Civil Aviation Flight University of China) Xiaohan Liu (Civil Aviation Flight University of China) Guolong Yang (Civil Aviation Flight University of China) Xijun Liu (Civil Aviation Flight University of China) Lixia Gao (Civil Aviation Flight University of China) Xinyu Zhu (Civil Aviation Flight University of China)

저널정보: 전력전자학회 JOURNAL OF POWER ELECTRONICS JOURNAL OF POWER ELECTRONICS Vol.19 No.5

발행연도: 2019.9

수록면: 1,133 - 1,141 (9page)

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In this paper, a capacitors energy strategy based Cascaded H-bridge Converter (CHBC) for steady DC link voltage is proposed, which allow the CHBC to work while DC power fails. The topology of the CHBC is analyzed to construct the proposed strategy. The capacitors energy strategy is deduced based on the principle that the DC link voltage should be steady, the switch state should be smooth and the switch frequency should be normal. Experiments based on a three-module prototype, including static experiment, start experiment and step change experiment, proves the correctness of the strategy. They also verified the excellent fault tolerance ability and good dynamic performance of the proposed strategy.

#CHBC #Capacitors energy strategy #Steady DC link voltage

참고문헌 (25)

참고문헌 신청

X. Peng, X. He, P. Han, H. Lin, S. Gao, and Z. Shu, “Opposite vector based phase shift carrier space vector pulse width modulation for extending the voltage balance region in single-phase 3LNPC cascaded rectifier,” IEEE Trans. Power Electron, Vol. 32, NO. 9, pp. 7381-7393, Sep. 2017.

X. She, A. Q. Huang, and X. J. Xu, “Current sensorless power balance strategy for DC/DC converters in a cascaded multilevel converter based solid state transformer,” IEEE Trans. Power Electron, Vol. 29, No. 1, pp. 17-22, Jan. 2014.

H. W. Sim, J. S. Lee, and K. B. Lee, “Detecting open-switch faults: Using asymmetric zero-voltage switching states,” IEEE Ind. Appl. Mag., Vol. 22, No. 2, pp. 27-37, Mar./Apr. 2016.

X. Peng, X. He, P. Han, A. Guo, Z. Shu, and S. Gao, “Smooth switching technique for voltage balance management based on three-level neutral point clamped cascaded rectifier,” Energies, Vol. 9, No. 10, Oct. 2016

B. Gou, X. Ge, S. Wang, X. Feng, J. B. Kuo, and T. G. Habetler, “An open-switch fault diagnosis method for single-phase PWM rectifier using a model-based approach in high-speed railway electrical traction drive system,” IEEE Trans. Power Electron, Vol. 31, No. 5, pp. 3816-3826, May. 2016.

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