Synchronous frame PI current regulators in a virtually translated system

This paper presents a virtual translation technique for current regulation for AC machines. A virtual physical parameter is employed to effectively translate the system pole to achieve fast and robust dynamics. Applying this technique to conventional synchronous frame current regulators reduces parameter sensitivity and improves robustness. The current controllers are redesigned in the virtually translated system. Current regulators adopting the technique have been analyzed in complex vector form for symmetric AC machines and in scalar form for salient-pole AC machines. Several current regulators using this technique have been experimentally evaluated for different operating conditions in an IPMSM drive.

[1]  Kwanghee Nam,et al.  A dynamic decoupling control scheme for high-speed operation of induction motors , 1999, IEEE Trans. Ind. Electron..

[2]  T. Lipo,et al.  Vector Control and Dynamics of AC Drives , 1996 .

[3]  Hans-Peter Nee,et al.  Model-based current control of AC machines using the internal model control method , 1995 .

[4]  Jacobus Daniel van Wyk,et al.  The effect of signal measurement and processing delay on the compensation of harmonics by PWM converters , 2000, IEEE Trans. Ind. Electron..

[5]  Joachim Holtz,et al.  The representation of AC machine dynamics by complex signal flow graphs , 1995, IEEE Trans. Ind. Electron..

[6]  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.

[7]  V. Blasko,et al.  Sampling of discontinuous voltage and current signals in electrical drives: a system approach , 1997, IAS '97. Conference Record of the 1997 IEEE Industry Applications Conference Thirty-Second IAS Annual Meeting.

[8]  Robert D. Lorenz,et al.  Performance of Feedforward Current Regulators for Field-Oriented Induction Machine Controllers , 1987, IEEE Transactions on Industry Applications.

[9]  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).

[10]  Colin D. Schauder,et al.  Current Control of Voltage-Source Inverters for Fast Four-Quadrant Drive Performance , 1982, IEEE Transactions on Industry Applications.

[11]  F. Briz,et al.  Dynamic analysis of current regulators for AC motors using complex vectors , 1998, Conference Record of 1998 IEEE Industry Applications Conference. Thirty-Third IAS Annual Meeting (Cat. No.98CH36242).

[12]  Russel J. Kerkman,et al.  A New Synchronous Current Regulator and an Analysis of Current-Regulated PWM Inverters , 1986, IEEE Transactions on Industry Applications.

[13]  Seung-Ki Sul,et al.  A compensation method for time delay of full digital synchronous frame current regulator of PWM AC drives , 2001, Conference Record of the 2001 IEEE Industry Applications Conference. 36th IAS Annual Meeting (Cat. No.01CH37248).

[14]  J. Pontt,et al.  Design of fast and robust current regulators for high power drives based on complex state variables , 2003, 38th IAS Annual Meeting on Conference Record of the Industry Applications Conference, 2003..

[15]  Paolo Mattavelli.  A closed-loop selective harmonic compensation for active filters , 2001 .