Variable speed control of multiple compressors
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United States of America Patent
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-
Jun 17, 2003
Grant Date -
N/A
app pub date -
Dec 31, 2001
filing date -
Dec 31, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A system for variable speed control of a plurality of compressors under variable load demand. The system includes a constant power source and a plurality of compressor motors having switches to connect with the constant power source. The system further includes a variable speed drive for driving any one of the plurality of compressor motors at variable speed, wherein each of the plurality of compressor motors includes a switch to connect with the variable speed drive. Each of the plurality of compressor motors is selectively electrically connected with the variable speed drive or the constant power source via the switches, for driving the each of the plurality of motors at one of variable or constant speed in response to compressor load demands.
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