An improved AC standstill method for inductance measurement of interior permanent magnet synchronous motors

Author

Yuting Gao ; Ronghai Qu ; Yang Liu

Author_Institution

State Key Lab. of Adv. Electromagn. Eng. & Technol., Huazhong Univ. of Sci. & Technol., Wuhan, China

fYear

2013

fDate

26-29 Oct. 2013

Firstpage

927

Lastpage

931

Abstract

An improved AC standstill method for inductance measurement of interior permanent magnet synchronous motors (IPMSM) is proposed in this paper. Only the single phase current source, oscilloscope and wattmeter are required in this method. The two single phase currents passing through the test circuit are proportional to d- and q- axes currents at operating condition respectively. Therefore the saturation and cross-coupling effect on synchronous inductances are included and the degree of influence of the cross-coupling effect on the inductances can also be evaluated. Finally, the relative deviation of the d- and q-axes inductances due to rotor positioning error which is the main error source is studied. This paper will introduce the principle equations and the result comparison.

Keywords

inductance measurement; oscilloscopes; permanent magnet motors; rotors; synchronous motors; wattmeters; IPMSM; circuit testing; cross-coupling effect; d-axes current; improved AC standstill method; interior permanent magnet synchronous motor; oscilloscope; q-axes current; rotor positioning error; saturation effect; single phase current; single phase current source; synchronous inductance measurement; wattmeter; Inductance; Inductance measurement; Integrated circuits; Oscilloscopes; Position measurement; Rotors; Wattmeters;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems (ICEMS), 2013 International Conference on

Conference_Location

Busan

Print_ISBN

978-1-4799-1446-3

Type

conf

DOI

10.1109/ICEMS.2013.6754404

Filename

6754404