Dead-time Compensation for 2-Level Voltage Source Inverters Based on Harmonic Current Controllers

Authors

  • Lich Thanh Nguyen University of Transport and Communications

Keywords:

Dead-time compensation, resonant controller

Abstract

This paper proposes a dead-time compensation method for 2-level voltage source inverters based on harmonic current controllers. The sixth harmonic of the stator current in the synchronous reference frame originated from the dead-time effect is attenuated by using current resonant controllers. The resonant controllers are connected in parallel with the conventional PI current regulator. The resonant controllers calculate a compensation voltage that is equal to the error voltage due to the dead-time, therefore the dead-time effect is mitigated. The proposed method is verified by simulation results.

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Published

2022-09-30