Fundamentals of a Pulsewidth Modulated Power Circuit |
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Authors: | Penkowski Lee J. Pruzinsky Kenneth E. |
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Affiliation: | Industrial Drives Group, Reliance Electric Company, Cleveland, Ohio 44117.; |
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Abstract: | This paper describes the practical design and operating principles of the pulsewidth modulated (PWM) inverter. The use of this power circuit in a variable voltage, variable frequency ac motor drive is emphasized. A comparison with the conventional adjustable voltage input inverter is made with respect to input-output characteristics as well as the effect of the unit on the input supply. This paper demonstrates the ability to design and produce a practical system using state of the arts components. |
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