Design of Position Estimation Strategy of Sensorless Interior PMSM at Standstill Using Minimum Voltage Vector Injection Method

Xuan Wu, Shoudao Huang, Xiao Liu, Kaiyuan Lu, Jian Gao, Jian Zheng

Research output: Contribution to journalJournal articleResearchpeer-review

5 Citations (Scopus)

Abstract

This paper presents a new initial rotor position estimation method for an interior permanent magnet synchronous motor. The proposed method includes two steps: firstly, the minimum voltage vectors are injected to estimate the rotor position. Secondly, in order to identify the magnet polarity accurately, two opposite voltage pulses are injected on the estimated d-axis. In the proposed method, no filter is needed to draw the high frequency current signal for position estimation and no low pass filter is required in the current control loop for exacting the fundamental current component for field oriented control. The fast and reliable feature of this proposed method allows starting the motor with 100% load torque. The effectiveness of the proposed method is verified experimentally and the maximum position estimation error is around 6 electrical degrees.
Original languageEnglish
Article number8110804
JournalIEEE Transactions on Magnetics
Volume53
Issue number11
Number of pages4
ISSN0018-9464
DOIs
Publication statusPublished - Nov 2017

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Rotors
Low pass filters
Electric current control
Electric potential
Synchronous motors
Error analysis
Permanent magnets
Magnets
Loads (forces)
Torque
Vector control (Electric machinery)

Keywords

  • Initial rotor position
  • Minimum voltage vector
  • Permanent-magnet synchronous motor
  • Voltage pulses

Cite this

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title = "Design of Position Estimation Strategy of Sensorless Interior PMSM at Standstill Using Minimum Voltage Vector Injection Method",
abstract = "This paper presents a new initial rotor position estimation method for an interior permanent magnet synchronous motor. The proposed method includes two steps: firstly, the minimum voltage vectors are injected to estimate the rotor position. Secondly, in order to identify the magnet polarity accurately, two opposite voltage pulses are injected on the estimated d-axis. In the proposed method, no filter is needed to draw the high frequency current signal for position estimation and no low pass filter is required in the current control loop for exacting the fundamental current component for field oriented control. The fast and reliable feature of this proposed method allows starting the motor with 100{\%} load torque. The effectiveness of the proposed method is verified experimentally and the maximum position estimation error is around 6 electrical degrees.",
keywords = "Initial rotor position, Minimum voltage vector, Permanent-magnet synchronous motor, Voltage pulses",
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Design of Position Estimation Strategy of Sensorless Interior PMSM at Standstill Using Minimum Voltage Vector Injection Method. / Wu, Xuan; Huang, Shoudao; Liu, Xiao; Lu, Kaiyuan; Gao, Jian; Zheng, Jian.

In: IEEE Transactions on Magnetics, Vol. 53, No. 11, 8110804, 11.2017.

Research output: Contribution to journalJournal articleResearchpeer-review

TY - JOUR

T1 - Design of Position Estimation Strategy of Sensorless Interior PMSM at Standstill Using Minimum Voltage Vector Injection Method

AU - Wu, Xuan

AU - Huang, Shoudao

AU - Liu, Xiao

AU - Lu, Kaiyuan

AU - Gao, Jian

AU - Zheng, Jian

PY - 2017/11

Y1 - 2017/11

N2 - This paper presents a new initial rotor position estimation method for an interior permanent magnet synchronous motor. The proposed method includes two steps: firstly, the minimum voltage vectors are injected to estimate the rotor position. Secondly, in order to identify the magnet polarity accurately, two opposite voltage pulses are injected on the estimated d-axis. In the proposed method, no filter is needed to draw the high frequency current signal for position estimation and no low pass filter is required in the current control loop for exacting the fundamental current component for field oriented control. The fast and reliable feature of this proposed method allows starting the motor with 100% load torque. The effectiveness of the proposed method is verified experimentally and the maximum position estimation error is around 6 electrical degrees.

AB - This paper presents a new initial rotor position estimation method for an interior permanent magnet synchronous motor. The proposed method includes two steps: firstly, the minimum voltage vectors are injected to estimate the rotor position. Secondly, in order to identify the magnet polarity accurately, two opposite voltage pulses are injected on the estimated d-axis. In the proposed method, no filter is needed to draw the high frequency current signal for position estimation and no low pass filter is required in the current control loop for exacting the fundamental current component for field oriented control. The fast and reliable feature of this proposed method allows starting the motor with 100% load torque. The effectiveness of the proposed method is verified experimentally and the maximum position estimation error is around 6 electrical degrees.

KW - Initial rotor position

KW - Minimum voltage vector

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KW - Voltage pulses

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