METHOD FOR CONTROLLING DEHYDRATION SPEED OF WASHING MACHINE

摘要

PURPOSE: A control method of dehydration speed of a washing machine is provided to minimize vibration and noise in spinning, and to improve stability of the washing machine by dehydrating optimally considering fluctuation of voltage in deciding eccentric wrong detection with feeding the current value back. CONSTITUTION: A control unit starts washing by driving a motor in detecting the end of water supply(S31), and drains washing water through a drain pipe and a drain hose and rinses the laundry by actuating a pump in finishing washing(S32). The eccentricity is detected for dehydration(S33), and dehydrating is performed according to detection of eccentricity(S34). The current value applied to the motor is compared with the current command value from the control unit(S35), and the end of dehydration is decided(S38). The current command limit value is calculated according to DC link voltage in case of the feedback current value to be over the current command value(S36).