Harmonic Analysis of the Effects of Inverter Nonlinearity on the Offline Inductance Identification of PMSMs Using High Frequency Signal Injection


Vol. 15, No. 6, pp. 1567-1576, Nov. 2015
10.6113/JPE.2015.15.6.1567


PDF    

 Abstract

Offline inductance identification of a permanent magnet synchronous motor (PMSM) is essential for the design of the closed-loop controller and position observer in sensorless vector controlled drives. On the base of the offline inductance identification method combining direct current (DC) offset and high frequency (HF) voltage injection which is fulfilled at standstill, this paper investigates the inverter nonlinearity effects on the inductance identification while considering harmonics in the induced HF current. The negative effects on d-q axis inductance identifications using HF signal injection are analyzed after self-learning of the inverter nonlinearity characteristics. Then, both the voltage error and the harmonic current can be described. In addition, different cases of voltage error distribution with different injection conditions are classified. The effects of inverter nonlinearities on the offline inductance identification using HF injection are validated on a 2.2 kW interior PMSM drive.


 Statistics
Show / Hide Statistics

Cumulative Counts from September 30th, 2019
Multiple requests among the same browser session are counted as one view. If you mouse over a chart, the values of data points will be shown.



Cite this article

[IEEE Style]

G. Wang, Y. Wang, L. Ding, L. Yang, R. Ni, D. Xu, "Harmonic Analysis of the Effects of Inverter Nonlinearity on the Offline Inductance Identification of PMSMs Using High Frequency Signal Injection," Journal of Power Electronics, vol. 15, no. 6, pp. 1567-1576, 2015. DOI: 10.6113/JPE.2015.15.6.1567.

[ACM Style]

Gaolin Wang, Ying Wang, Li Ding, Lei Yang, Ronggang Ni, and Dianguo Xu. 2015. Harmonic Analysis of the Effects of Inverter Nonlinearity on the Offline Inductance Identification of PMSMs Using High Frequency Signal Injection. Journal of Power Electronics, 15, 6, (2015), 1567-1576. DOI: 10.6113/JPE.2015.15.6.1567.