Stator Winding Temperature Estimation of IPMSM Based on a High-frequency Voltage Signal Injection

An Interior Permanent Magnet Synchronous Machine, IPMSM, has been widely adopted as a traction motor of electric/hybrid vehicles because of high torque density and wide operating speed region. In the operation of IPMSM, a winding temperature should be monitored to maximize the operating area of IPMSM while avoiding winding insulation breakdown. This paper proposes a stator winding temperature estimation method of IPMSM by using high-frequency (HF) resistance at low operation speed. A relation between HF resistance and the stator winding temperature is analyzed and verified in an experimental setup where the stator winding temperatures and the magnet temperatures can be measured. Based on the relation, the stator temperature estimation method has been devised in this paper. Experimental results, including online estimation, show that the proposed method can be utilized to estimate the stator winding temperature.

[1]  Hyun-Sam Jung,et al.  Non-Invasive Magnet Temperature Estimation of IPMSM Based on High-Frequency Inductance With a Pulsating High-Frequency Voltage Signal Injection , 2019, IEEE Transactions on Industry Applications.

[2]  Daniel J. Berry,et al.  Non-Invasive Magnet Temperature Estimation in IPMSM by High Frequency Pulsating Sinusoidal Voltage Injection , 2018, 2018 IEEE Transportation Electrification Conference and Expo (ITEC).

[3]  Hyun-Sam Jung,et al.  Design of Wireless Temperature Monitoring System for Measurement of Magnet Temperature of IPMSM , 2018, 2018 IEEE Transportation Electrification Conference and Expo (ITEC).

[4]  Thomas G. Habetler,et al.  Stator Temperature Estimation of Direct-Torque-Controlled Induction Machines via Active Flux or Torque Injection , 2015, IEEE Transactions on Power Electronics.

[5]  Slobodan N. Vukosavic,et al.  Motor Temperature Monitoring Based on Impedance Estimation at PWM Frequencies , 2014, IEEE Transactions on Energy Conversion.

[6]  Anton Haumer,et al.  A Practical Thermal Model for the Estimation of Permanent Magnet and Stator Winding Temperatures , 2014, IEEE Transactions on Power Electronics.

[7]  S D Wilson,et al.  Methods of Resistance Estimation in Permanent Magnet Synchronous Motors for Real-Time Thermal Management , 2010, IEEE Transactions on Energy Conversion.

[8]  Fernando Briz,et al.  Magnet temperature estimation in surface PM machines using high frequency signal injection , 2009, 2009 IEEE Energy Conversion Congress and Exposition.

[9]  Andrea Cavagnino,et al.  Evolution and Modern Approaches for Thermal Analysis of Electrical Machines , 2009, IEEE Transactions on Industrial Electronics.

[10]  F. Briz,et al.  Temperature Estimation in Inverter Fed Machines Using High Frequency Carrier Signal Injection , 2007, 2007 IEEE Industry Applications Annual Meeting.

[11]  Jammalamadaka.  Introduction to Linear Regression Analysis (3rd ed.) , 2003 .

[12]  T.G. Habetler,et al.  An on-line stator winding resistance estimation technique for temperature monitoring of line-connected induction machines , 2001, Conference Record of the 2001 IEEE Industry Applications Conference. 36th IAS Annual Meeting (Cat. No.01CH37248).

[13]  Elizabeth A. Peck,et al.  Introduction to Linear Regression Analysis , 2001 .

[14]  Robert D. Lorenz,et al.  Transducerless position and velocity estimation in induction and salient AC machines , 1994, Proceedings of 1994 IEEE Industry Applications Society Annual Meeting.