Synchronous Reluctance Motor drive system parameter identification using a current regulator

The electrical parameters of synchronous reluctance motors (SynRMs) are used to calculate PI gains in a synchronous PI current regulator as well as to determine the reference currents of the speed controller in the various control strategies of SynRMs. Many methods of measuring or estimating the electrical parameters of a SynRM have been proposed by other researchers. But almost researchers only measure or estimate the machine electrical parameters in limited conditions without fully considering the effects of inverter switching elements, connecting wires and magnetic saturation. The acquired results are usually different from the real parameters for the use of the motor drive. These results can deteriorate the drive performance of the SynRM. In this paper, we introduce a new method that uses the synchronous PI current regulator in the motor drive system to measure electrical parameters at standstill. The acquired parameters are used for PI gains of the synchronous PI current regulator. The experimental results verify the effectiveness of the proposed method.

[1]  Seung-Ki Sul,et al.  Position sensorless control of synchronous reluctance motor using high frequency current injection , 1997 .

[2]  Tomonobu Senjyu,et al.  Parameter measurement for synchronous reluctance motors considering stator and rotor iron loss , 1999, IEEE International Electric Machines and Drives Conference. IEMDC'99. Proceedings (Cat. No.99EX272).

[3]  Thomas A. Lipo,et al.  Rotor position detection scheme for synchronous reluctance motor based on current measurements , 1994, Proceedings of 1994 IEEE Industry Applications Society Annual Meeting.

[4]  K. Ohyama,et al.  Small-signal stability analysis of vector control system of induction motor without speed sensor using synchronous current regulator , 2000 .

[5]  Michele Pastorelli,et al.  High performance control of synchronous reluctance motor , 1996, IAS '96. Conference Record of the 1996 IEEE Industry Applications Conference Thirty-First IAS Annual Meeting.

[6]  S. Ichikawa,et al.  Sensorless Control of Synchronous Reluctance Motors Based on Extended EMF Models Considering Magnetic Saturation With Online Parameter Identification , 2006, IEEE Transactions on Industry Applications.

[7]  Paul C. Krause,et al.  Analysis of electric machinery , 1987 .

[8]  Maurizio Repetto,et al.  Design refinement of synchronous reluctance motors through finite-element analysis , 2000 .

[9]  Thierry Lubin,et al.  Magnetic saturation effects on the control of a synchronous reluctance machine , 2001, IEMDC 2001. IEEE International Electric Machines and Drives Conference (Cat. No.01EX485).

[10]  R.E. Betz,et al.  Control of synchronous reluctance machines , 1991, Conference Record of the 1991 IEEE Industry Applications Society Annual Meeting.

[11]  Osama A. Mohammed,et al.  Parameters evaluation of ALA synchronous reluctance motor drives , 2000 .

[12]  R.E. Betz,et al.  The use of doubly fed reluctance machines for large pumps and wind turbines , 2001, Conference Record of the 2001 IEEE Industry Applications Conference. 36th IAS Annual Meeting (Cat. No.01CH37248).

[13]  Thomas A. Lipo,et al.  Synchronous reluctance machines―a viable alternative for AC drives? , 1991 .

[14]  R.D. Lorenz,et al.  Improved current regulators for IPM machine drives using on-line parameter estimation , 2002, Conference Record of the 2002 IEEE Industry Applications Conference. 37th IAS Annual Meeting (Cat. No.02CH37344).

[15]  Ching-Cheng Teng,et al.  Inductance measurement and estimation method utilizing LC circuit analysis techniques under dynamic operation for switched reluctance (SR) machines , 2004, 30th Annual Conference of IEEE Industrial Electronics Society, 2004. IECON 2004.

[16]  F. Briz,et al.  Analysis and design of current regulators using complex vectors , 1997, IAS '97. Conference Record of the 1997 IEEE Industry Applications Conference Thirty-Second IAS Annual Meeting.

[17]  R. Rabinovici,et al.  Inductance measurements in switched reluctance machines , 2005, IEEE Transactions on Magnetics.

[18]  Ping Zheng,et al.  Influence of saturation and saliency on the inductance of a four-quadrant transducer prototype machine , 2006, IEEE Transactions on Magnetics.

[19]  Brian J. Chalmers,et al.  Design and field-weakening performance of a synchronous reluctance motor with axially-laminated rotor , 1997, IAS '97. Conference Record of the 1997 IEEE Industry Applications Conference Thirty-Second IAS Annual Meeting.

[20]  H.B. Puttgen,et al.  Synchronous reluctance motor operating point dependent parameter determination , 1990, Conference Record of the 1990 IEEE Industry Applications Society Annual Meeting.

[21]  A. Kilthau,et al.  Parameter-measurement and control of the synchronous reluctance machine including cross saturation , 2001, Conference Record of the 2001 IEEE Industry Applications Conference. 36th IAS Annual Meeting (Cat. No.01CH37248).

[22]  T.M. Jahns,et al.  Reduction of parameter sensitivity in an induction motor current regulator using integrated pilot sensors in the low-side switches , 2004, Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting..