Analysis and minimization of ripple components of input current and voltage of PWM inverters

Conference · Sun Dec 31 04:00:00 EST 1995

OSTI ID:427942

Dahono, P A; Sato, Yukihiko; Kataoka, Teruo ^[1]

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1. Tokyo Inst. of Tech. (Japan). Dept. of Electrical and Electronic Engineering

Analysis and minimization of the ripple components of the input current and voltage of three-phase voltage-source PWM inverters are presented in this paper. The analytical expressions for the rms values of the input current and voltage ripples as a function of the shape of the PWM reference signal are derived. It is found that the reference signal which produces a minimum ripple in the input voltage varies as a function of the load power factor. It is also found that the rms value of the inverter input current ripple does not depend on the shape of the reference signal. In respect of the inverter input current and voltage ripples, the addition of harmonics other than the third into the sinusoidal reference is neither useful nor necessary. Experimental results are included to verify the derived expressions.

• OSTI ID: 427942
• Report Number(s): CONF-9510203--
• Country of Publication: United States
• Language: English

Related Subjects

24 POWER TRANSMISSION AND DISTRIBUTION
DIAGRAMS
ELECTRIC MOTORS
HARMONICS
INVERTERS
NUMERICAL ANALYSIS
POWER SUPPLIES