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Advanced Pulsewidth Modulated Inverter Techniques

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1 Author(s)
Pollack, Jerry J. ; Reliance Electric Company, Cleveland, Ohio 44117.

Since its introduction in the mid 1960's the pulsewidth modulated (PWM) inverter has offered a number of significant advantages over other inverter types for low and medium frequency applications. The generation of an acceptable waveform at higher frequency, however, was limited by the characteristics of available power thyristors and modulator design. With the advent of the fast turn-off thyristor and advances in PWM modulator techniques, the PWM inverter now offers application advantages to 200 Hz. PWM design considerations are analyzed, with a discussion of second-generation PWM operation provided.

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Industry Applications, IEEE Transactions on  (Volume:IA-8 ,  Issue: 2 )