Electric power conversion systems – Current conversion – With means to introduce or eliminate frequency components
Patent
1984-10-19
1986-05-27
Leung, Philip H.
Electric power conversion systems
Current conversion
With means to introduce or eliminate frequency components
363 97, 323906, H02M 112
Patent
active
045919658
ABSTRACT:
A controlled switching system for converting the output of several photovoltaic solar arrays into a polyphase alternating electric current. Each array is utilized 100% of the time, and at any particular instant only one array or no array is feeding a particular phase. The specific line to which an array is connected is altered in a cyclic manner by the switching system to synthesize the polyphase current. Energy is not stored in the switching system, but instead is made available as polyphase electric current as soon as it is generated by the photovoltaic arrays. Each phase approximates a sine wave to an extent that is limited by the number of arrays. For the closest approximation, the arrays must be configured to have prescribed voltages and currents. Alternatively, a single array may be partitioned electrically in such a way that the desired voltages and currents are attained.
REFERENCES:
patent: 3118105 (1964-01-01), Relation et al.
patent: 3416062 (1968-12-01), Bernhard et al.
patent: 3867643 (1975-02-01), Baker et al.
patent: 4052657 (1977-10-01), Kleiner et al.
patent: 4052658 (1977-10-01), Hucker
patent: 4476520 (1984-10-01), Gallemore
Leung Philip H.
McKown Daniel C.
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