Title :
Estimation of permanent magnet motor parameters
Author :
Weisgerber, S. ; Proca, A. ; Keyhani, A.
Author_Institution :
Dept. of Electr. Eng., Ohio State Univ., Columbus, OH, USA
Abstract :
To properly design and optimize a control system of a permanent-magnet (PM) machine, the machine model and its parameters must be known. This study presents a method for developing a model and estimating the parameters of a PM machine from standstill time-domain step response data. A dq-axis equivalent circuit model with a general number of damper windings is defined to describe the behavior of the PM machine. Standstill simulation studies were performed on a known PM machine to generate synthetic test data to be used for estimation procedure verification. The stand-still dq-axis model is subjected to a step-input signal and the resulting output is used for parameter estimation. The output-error estimation algorithm is used to estimate the unknown parameters of the dq-axis model. Stand-still tests were then performed on a 4 pole, 1 kW PM machine to obtain data. The PM machine parameters were estimated and the model verified against experimental input and output test data
Keywords :
equivalent circuits; machine control; machine theory; machine windings; parameter estimation; permanent magnet motors; step response; time-domain analysis; 1 kW; 4 pole PM motor; control system design; control system optimisation; damper windings; dq-axis equivalent circuit model; dq-axis model; machine model; output-error estimation algorithm; parameters estimation; permanent magnet motor; standstill time-domain step response data; step-input signal; synthetic test data generation; Control system synthesis; Damping; Design optimization; Equivalent circuits; Parameter estimation; Performance evaluation; Permanent magnet motors; Shock absorbers; Testing; Time domain analysis;
Conference_Titel :
Industry Applications Conference, 1997. Thirty-Second IAS Annual Meeting, IAS '97., Conference Record of the 1997 IEEE
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-4067-1
DOI :
10.1109/IAS.1997.643004
