POSITION COMPENSATING METHOD IN A REDUCED-SPEED SECTION IN THE INVERTER CONTROL OF AN ELEVATOR, CAPABLE OF AUTOMATICALLY COMPENSATING THE GAIN VALUE OF THE LOST FEEDBACK PART IN THE REDUCED-SPEED SECTION OF AN ELEVATOR

摘要

PURPOSE: A position compensating method in a reduced-speed section in the inverter control of an elevator is provided to minimize the power loss in the reduced-speed section of an elevator when the inverter of the elevator is controlled.;CONSTITUTION: A position compensating method in a reduced-speed section in the inverter control of an elevator is as follows. An actual reference value is obtained in a reduced-speed section when the inverter of the elevator is controlled. The gain value of a pattern feedback part is obtained. The difference between the actual reference value and the gain value of the pattern feedback is calculated. The difference is compensated automatically. The lost feedback part in the reduced-speed section is compensated and power loss and landing error are minimized.;COPYRIGHT KIPO 2011