Electric power conversion systems – Current conversion – With means to introduce or eliminate frequency components
Patent
1986-06-30
1988-01-12
Beha, Jr., William H.
Electric power conversion systems
Current conversion
With means to introduce or eliminate frequency components
307637, 357 22, 357 30, 363 37, 363128, 363129, 363136, 363137, 323207, H02M 7527
Patent
active
047195517
ABSTRACT:
The present invention provides an optically controlled power converting apparatus using light trigger/light quench electrostatic induction thyristors, as switching elements, which can execute the switching operations at a high speed being when they are supplied with light trigger pulses and light quench pulses. By supplying the light trigger pulses and light quench pulses at the timings corresponding to the pulse width modulation, the light trigger/light quench electrostatic induction thyristors can perform predetermined power converting operations.
REFERENCES:
patent: 4200879 (1980-04-01), Nonaka et al.
patent: 4486824 (1984-12-01), Okuyama et al.
Zurgum et al, "A New Gate Turn-Off Switch (G.T.O.) Used in a P.W.M. A.C. Motor Drive," Cout: Proc. of the First Annual Int. Motorcon '81 Conference, Chicago, IL., U.S.A. (10-13 Jun. 1981), pp. 483-491.
Fourth International Conference on AC and DC Power Transmission, Conference Publication Number 255, "New Thyristor Applicable to DC Power Transmission," by Nishizawa and Tamamushi, pp. 304-309 (undated).
Mitamura Koichi
Mitsui Kiyoo
Miura Kimio
Nishizawa Jun-ichi
Tamamushi Takashige
Beha Jr. William H.
Tohoku Electric Power Company, Incorporated
Zaidan Hojin Handotai Kenkyu Sinkokai
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