Journal of Jishou University(Natural Sciences Edition) ›› 2021, Vol. 42 ›› Issue (3): 57-62.DOI: 10.13438/j.cnki.jdzk.2021.03.010

• Physics and Electromechanical • Previous Articles     Next Articles

Control Strategy of Variable Frequency Speed Regulation System Based on Multi-Drive

HU Xiaofeng   

  1. (Hunan Institute of Traffic Engineering, Hengyang 421001, Hunan China)
  • Online:2021-05-25 Published:2021-08-30

Abstract: This paper presents a multi drive variable frequency speed control system. The topology of the system is AC-DC-AC structure, and the control performance is AC-AC direct conversion. Zero current commutation strategy and PWM control strategy can get good input current and output voltage waveform, and realize safe commutation. In the following, the correctness of the theory proposed in this paper is proved by the simulation results.

Key words: multi-drive system, zero-current commutation, rectify control, inverter control

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