Patent ID: 6453693
Filing Date: 2002-09-24
Classification: F25B,F25D,H01L,H02J,H02S,Y02E,Y10S

Abstract:
A control method for a solar powered refrigeration system having a compressor motor, which obtains a first DC current from a solar power source, and obtains a second DC current from a capacitance storage source, and conducts the first and second DC currents to said compressor motor for driving said motor during a â€œstart-upâ€  phase of said compressor motor, said method comprising the steps of:(A) monitoring system voltage of said compressor system; (B) determining whether the power required to drive said compressor system is greater than the power produced by said first power source; (C) upon determining that additional power is required to start said compressor system, drawing additional power from said capacitance source for starting said compressor motor; and, (D) subsequently, driving said compressor motor substantially by said first DC current.