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A Current-Source-Converter-Based High-Power High-Speed PMSM Drive With 420-Hz Switching Frequency

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4 Author(s)
Zheng Wang ; Sch. of Electr. Eng., Southeast Univ., Nanjing, China ; Bin Wu ; Dewei Xu ; Zargari, N.R.

In this paper, a current-source-converter (CSC)-based high-power high-speed (HPHS) permanent-magnet synchronous motor drive is proposed for high-speed compressor applications. The most important feature of the proposed CSC-fed HPHS drive is that the switching frequency is limited to 420 Hz at 200-Hz fundamental frequency. In the drive system, the whole operation range is divided into three regions, namely, the high-, medium-, and low-speed regions, where different modulation strategies and control schemes are used with the requirement of switching frequency and output filter. In particular, a two-pulse space vector modulation with dynamic capacitor voltage control is proposed for the high-speed region to achieve better dynamic and harmonic performance. Both simulation and experiments verify the proposed control strategy.

Published in:

Industrial Electronics, IEEE Transactions on  (Volume:59 ,  Issue: 7 )

Date of Publication:

July 2012

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