Electric power conversion systems – Current conversion – With means to introduce or eliminate frequency components
Patent
1986-08-14
1987-04-07
Wong, Peter S.
Electric power conversion systems
Current conversion
With means to introduce or eliminate frequency components
363 98, 318802, 318811, H02M 112
Patent
active
046565728
ABSTRACT:
A PWM inverter in which the maximum three-phase RMS pole-to-pole output voltage is increased, to more efficiently utilize a fixed DC power supply, by generating substantially sinusoidal changing pole voltages having no values within predetermined zones adjacent to each power supply limit, and by switching each pole voltage to a power supply limit for a predetermined number of electrical degrees during each half cycle, resulting in step changes in the pole voltage waveforms from the substantially sinusoidal changing waveform to a fixed power supply limit.
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Caputo William R.
Husson Alan L.
Lee Kenneth K.
Lackey D. R.
Westinghouse Electric Corp.
Wong Peter S.
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