Mathematical Analysis and Simulation Based Survey on Initial Pole Position Estimation of Surface Permanent Magnet Synchronous Motor

Tae-Woong Kim; Patrick Wheeler; Jaeho Choi

Mathematical Analysis and Simulation Based Survey on Initial Pole Position Estimation of Surface Permanent Magnet Synchronous Motor

Tae-Woong Kim

Patrick Wheeler

Jaeho Choi

Vol. 9, No. 3, pp. 499-506, May 2009

10.6113/JPE.2009.9.3.499

Surface permanent magnet synchronous motor

Initial pole-position estimation

Sensorless control

Servo drive

PDF

Abstract

In this paper, the initial pole-position estimation of a surface (non-salient) permanent magnet synchronous motor is mathematically analyzed and surveyed on the basis of simulation analysis, and developed for accurate servo motor drive. This algorithm is well carried out under the full closed-loop position control without any pole sensors and is completely insensitive to any motor parameters. This estimation is based on the principle that the initial pole-position is simply calculated by the reverse trigonometric function using the two feedback currents in the full closed-loop position control. The proposed algorithm consists of the predefined reference position profile, the information of feedback currents, speed, and relative position, and the reverse trigonometric function for the initial-pole position estimation. Comparing with the existing researches, the mathematical analysis is introduced to get a more accurate initial pole-position of the surface permanent magnet motor under the closed-loop position control. It is found that the proposed algorithm can be easily applied in servo drive applications because it satisfies the following user’s specifications; accuracy and moving distance.

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]

T. Kim, P. Wheeler, J. Choi, "Mathematical Analysis and Simulation Based Survey on Initial Pole Position Estimation of Surface Permanent Magnet Synchronous Motor," Journal of Power Electronics, vol. 9, no. 3, pp. 499-506, 2009. DOI: 10.6113/JPE.2009.9.3.499.

[ACM Style]

Tae-Woong Kim, Patrick Wheeler, and Jaeho Choi. 2009. Mathematical Analysis and Simulation Based Survey on Initial Pole Position Estimation of Surface Permanent Magnet Synchronous Motor. Journal of Power Electronics, 9, 3, (2009), 499-506. DOI: 10.6113/JPE.2009.9.3.499.