Electric power conversion systems – Current conversion – Having plural converters for single conversion
Patent
1985-01-23
1987-02-03
Wong, Peter S.
Electric power conversion systems
Current conversion
Having plural converters for single conversion
363 89, 363132, 363 98, H02P 1320
Patent
active
046412328
ABSTRACT:
The present invention provides an electrical power inverter method and apparatus, which includes a high frequency link, for converting DC power into AC power. Generally stated, the apparatus includes a first high frequency module which produces an AC voltage at a first output frequency, and a second high frequency inverter module which produces an AC voltage at a second output frequency that is substantially the same as the first output frequency. The second AC voltage is out of phase with the first AC voltage by a selected angular phase displacement. A mixer mixes the first and second output voltages to produce a high frequency carrier which has a selected base frequency impressed on the sidebands thereof. A rectifier rectifies the carrier, and a filter filters the rectified carrier. An output inverter inverts the filtered carrier to produce an AC line voltage at the selected base frequency. A phase modulator adjusts the relative angular phase displacement between the outputs of the first and second high frequency modules to control the base frequency and magnitude of the AC line voltage.
REFERENCES:
patent: 4556937 (1985-12-01), Ziogas et al.
Klaasens, "A 95-Percent Efficient 1-KW DC Converter with an Internal Frequency of 50 kHz", IEEE Transactions on Industrial Electronics and Control Instrumentation, vol. IECI-25, No. 4, 11/78, pp. 326-333.
Ranganathan, et al., "A DC-AC Power Conversion Technique Using Twin Resonant High Frequency Links", IEEE, pp. 786-792.
Steigerwald, et al., "Application of Power Transistors to Residential and Intermediate Rating Photovoltaic Array Power Conditioners", IEEE, vol. IA-19, No. 2, pp. 254-267.
Cocconi, et al., "High-Frequency Isolated 4 KW Photovoltaic Inverter for Utility Interface", PCI/Motor-Con Proceedings, 9/83, pp. 39-59.
Steigerwald, et al., "A Comparison of High-Frequency Link Schemes for Interfacing a DC Source to a Utility Grid", IEEE, 1982, 759-766.
Allied Corporation
Cortina Anibal J.
Jones Judson H.
Wong Peter S.
LandOfFree
Electrical power inverter having a phase modulated, twin-inverte does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electrical power inverter having a phase modulated, twin-inverte, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrical power inverter having a phase modulated, twin-inverte will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1094242