Electric power conversion systems – Current conversion – With means to introduce or eliminate frequency components
Patent
1992-09-18
1994-06-14
Stephan, Steven L.
Electric power conversion systems
Current conversion
With means to introduce or eliminate frequency components
363 74, 363 98, 363132, 323207, H02M 75395
Patent
active
053215982
ABSTRACT:
A three-phase active filter for connection into a three-phase power distribution system to compensate undesirable harmonic deviations. A converter is electrically connected between the power distribution system and a DC energy storage element. The converter is selectively controlled by control means to effectuate a flow of energy between the system and the storage element to offset the harmonic deviations. To improve the dynamic response of the filter, the control means utilize vector control principles. Specifically, a synchronous fundamental vector of AC energy waveforms in the power distribution system is derived in a rotating reference frame. Fundamental reference signals are then produced in a stationary reference frame which are compared with corresponding actual condition signals. Error signals thus produced are then utilized to operate the converter. To compensate losses in the storage element and inverter, the control means preferably further comprise loss compensation means also utilizing vector control principles.
REFERENCES:
patent: 3825815 (1974-07-01), Gyugyi et al.
patent: 4479082 (1984-10-01), Schauder et al.
patent: 4651265 (1987-03-01), Stacey et al.
patent: 4707651 (1987-11-01), Schauder
patent: 4713745 (1987-12-01), Schauder
patent: 4812669 (1989-03-01), Takeda et al.
patent: 4862054 (1989-08-01), Schauder
patent: 4885518 (1989-12-01), Schauder
patent: 4962339 (1990-10-01), Schauder
patent: 5005115 (1991-04-01), Schauder
patent: 5063532 (1991-11-01), Takeda et al.
patent: 5182463 (1993-01-01), Yamamoto et al.
Berhane Adolf
Nixon Norman A.
Stephan Steven L.
Westinghouse Electric Corp.
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