Incorporating the overmodulation range in space vector pattern generators using a classification algorithm [PWM invertors]

Operating voltage pulse width modulated (PWM) inverters in the overmodulation region extends their voltage and power range and improves their dynamic performance. This paper is a contribution to the extension of the operating range of the classification algorithm for the implementation of space vector modulation (SVM) in the pulse dropping region. Two different schemes are proposed to continuously increase the output voltage up to the maximum attainable value in a controllable manner. Mathematical analysis and experimental results verify the validity of the proposed schemes.

[1]  J. Espinoza,et al.  A combined artificial neural network and DSP approach to the implementation of space vector modulation techniques , 1996, IAS '96. Conference Record of the 1996 IEEE Industry Applications Conference Thirty-First IAS Annual Meeting.

[2]  David Leggate,et al.  Control of PWM voltage inverters in the pulse dropping region , 1996 .

[3]  Joachim Holtz,et al.  On continuous control of PWM inverters in the overmodulation range including the six-step mode , 1992, Proceedings of the 1992 International Conference on Industrial Electronics, Control, Instrumentation, and Automation.

[4]  John A. Houldsworth,et al.  The Use of Harmonic Distortion to Increase the Output Voltage of a Three-Phase PWM Inverter , 1984, IEEE Transactions on Industry Applications.

[5]  Duncan A Grant.  Technique for pulse dropping in pulse-width modulated inverters , 1981 .

[6]  Thomas A. Lipo,et al.  Operation of Naturally Sampled Current Regulators in the Transition Mode , 1987, IEEE Transactions on Industry Applications.

[7]  David Leggate,et al.  Control of PWM voltage inverters in the pulse dropping region , 1995 .

[8]  David Leggate,et al.  An overmodulation strategy for PWM voltage inverters , 1993, Proceedings of IECON '93 - 19th Annual Conference of IEEE Industrial Electronics.

[9]  Slobodan N. Vukosavic,et al.  Reduction of parasitic spectral components of digital space vector modulation by real-time numerical methods , 1995 .

[10]  Joachim Holtz,et al.  On continuous control of PWM inverters in the overmodulation range including the six-step mode , 1993 .

[11]  J. Espinoza,et al.  Fast space vector modulation based on a neurocomputing digital signal processor , 1997, Proceedings of APEC 97 - Applied Power Electronics Conference.

[12]  Thomas G. Habetler,et al.  Performance evaluation of a direct torque controlled drive in the continuous PWM-square wave transition region , 1993 .

[13]  H. van der Broeck,et al.  Analysis and Realization of a Pulse Width Modulator Based on Voltage Space Vectors , 1986, 1986 Annual Meeting Industry Applications Society.

[14]  R. Seidner,et al.  Technique for pulse elimination in pulsewidth-modulation inverters with no waveform discontinuity , 1982 .