New Three-Phase Current Reconstruction for PMSM Drive with Hybrid Space Vector Pulsewidth Modulation Technique

Wenjie Wang, Hao Yan, Yongxiang Xu, Jibin Zou, Xin Zhang, Weiduo Zhao, Giampaolo Buticchi, Chris Gerada

Research output: Journal PublicationArticlepeer-review

55 Citations (Scopus)


Current sensing techniques with reduced number of sensors attract a high interest from industry, for the possibility of cost reduction and sampling mismatch reduction. This article puts forward a new single current sensor (SCS) method for a permanent magnet synchronous motor three-phase current reconstruction, with a novel hybrid pulsewidth modulation (PWM) technique introduced. This method is implemented by changing the position of SCS from dc bus to a current branch, and a modified space vector PWM technique is employed to realize the phase current reconstruction. Compared with traditional SCS control methods, the proposed method can relieve the measurement dead-zones at sector boundary region without introducing extra compensation algorithms. Besides, this method can be realized not only with a single hall-effect current sensor but also a single shunt resistor, which further expands the applications and increases the system reliability as well. This method is also available in other motor control with a two-level three-phase PWM voltage source inverter topology. The accuracy and feasibility of the proposed method is validated by the simulation and experimental results.

Original languageEnglish
Article number9102430
Pages (from-to)662-673
Number of pages12
JournalIEEE Transactions on Power Electronics
Issue number1
Publication statusPublished - 1 Jan 2021


  • Hybrid space vector pulse width modulation (HSVPWM)
  • permanent magnet synchronous motor (PMSM)
  • phase current reconstruction
  • single current sensor (SCS)
  • voltage vector

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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