Efficiency Mapping of a Small Permanent Magnet Synchronous Motor

This paper presents a simple method for calculating the efficiency map of a Permanent Magnet Synchronous Motor (PMSM) from the motor nameplate parameters. The method is experimentally verified and the results are found in good agreement with the calculations despite the made simplifications. The method has been verified with a 23.5 Nm, 2000 RPM PMSM in the whole operation range of the motor. The method allows a device designer (traction applications, robots, production lines etc.) to calculate in advance the efficiency for a given driving or control cycle. Consequently, losses and cooling can be also calculated in advance.

[1]  Gianmario Pellegrino,et al.  Efficiency maps of electrical machines , 2015, 2015 IEEE Energy Conversion Congress and Exposition (ECCE).

[2]  J. Tamura.  Calculation Method of Losses and Efficiency of Wind Generators , 2012 .

[3]  R. Bojoi,et al.  Efficiency and loss mapping of AC motors using advanced testing tools , 2016, 2016 XXII International Conference on Electrical Machines (ICEM).

[4]  Xu Liu,et al.  Investigation on Operational Envelops and Efficiency Maps of Electrically Excited Machines for Electrical Vehicle Applications , 2015, IEEE Transactions on Magnetics.

[5]  Co Huynh,et al.  Losses in High Speed Permanent Magnet Machines Used in Microturbine Applications , 2009 .

[6]  Z. Cerovsky,et al.  Digital controlled high speed synchronous motor , 2008, 2008 13th International Power Electronics and Motion Control Conference.

[7]  Pragasen Pillay,et al.  A Novel Algorithm for Estimating Refurbished Three-Phase Induction Motors Efficiency Using Only No-Load Tests , 2015, IEEE Transactions on Energy Conversion.

[8]  Karel Hruska,et al.  The validity range of PMSM efficiency map regarding its equivalent circuit parameters , 2016, 2016 17th International Conference on Mechatronics - Mechatronika (ME).

[9]  Andreas Krings,et al.  Overview and Comparison of Iron Loss Models for Electrical Machines , 2010 .

[10]  Zhongze Wu,et al.  Novel Electrical Machines Having Separate PM Excitation Stator , 2015, IEEE Transactions on Magnetics.

[11]  Oskar Wallmark,et al.  Measurement and Modeling of Iron Losses in Electrical Machines , 2012 .

[12]  Valéria Hrabovcová,et al.  Design of Rotating Electrical Machines , 2009 .