Electric power conversion systems – Current conversion – Using semiconductor-type converter
Patent
1986-05-07
1987-06-30
Wong, Peter S.
Electric power conversion systems
Current conversion
Using semiconductor-type converter
363 41, 363 98, H02M 7538
Patent
active
046775390
ABSTRACT:
A dc to three phase ac switched mode converter is described wherein a six switch bridge is provided to interconnect the dc source to a three-phase load. A plurality of dc sources are described, each of which employs an inductor/capacitor combination for energy storage, which stored energy is subsequently applied to the output load. The stored energy is delivered by connecting the capacitor across two legs of the three-phase load, while assuring that the third leg is invariably short-circuited back upon itself. As a result, three of the six switches in the bridge are closed at any instant to prevent any current interruption in the load.
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Cuk, Slobodan et al., "A New Optimum Topology Switching DC-to-DC Converter", pp. 311-330 of Advances in Switched Mode Power Conversion, Middlebrook & Cuk, vol. 2, 1983.
Ngo, Khai et al., "A New Flyback DC-to-Three Phase Converter with Sinusoidal Outputs", IEEE Power Electronics Specialists Conference 1983, pp. 377-388.
Barzegar, Farhad et al., "a New Switched-Mode Amplifier Produces Clean Three Phase Power", Proc. Ninth International Solid State Power Conversion Conference (Powercon 9), pp. E3.1-E3.15, Jul. 1982.
Variable Frequency Three Phase Current Source Inverter by R. Simard et al. IEEE-IAS 1981 Annual Meeting, 5-9 Oct. 1981, pp. 839-841.
Erickson Robert W.
Khan Iftikar A.
Jones Judson H.
Koffsky David N.
University Patents Inc.
Wong Peter S.
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