Patent ID: 7207183
Filing Date: 2007-04-24
Classification: F25B,Y02B

Abstract:
1. A method for controlling the capacity of a multiple compressor chiller system, the method comprising the steps of: providing a variable speed drive having a plurality of inverters, wherein each inverter is configured to power a corresponding compressor motor of a multiple compressor chiller system; monitoring at least one operating condition of a multiple compressor chiller system; determining whether to increase output capacity of a multiple compressor chiller system in response to the at least one monitored operating condition; adjusting an operating configuration of the plurality of inverters to increase the output capacity of a multiple compressor chiller system in response to a determination to increase output capacity; determining whether to decrease output capacity of a multiple compressor chiller system in response to the at least one monitored operating condition; and adjusting an operating configuration of the plurality of inverters to decrease the output capacity of a multiple compressor chiller system in response to a determination to decrease output capacity.