A method and system for measuring parameters of a high-current adjustable frequency three-phase inductor.

Abstract

This invention relates to the field of parameter measurement technology, specifically to a method and system for measuring the parameters of a high-current adjustable frequency three-phase inductor. The method includes acquiring multiple measurement detection signals with different frequencies and idle time periods; using the idle time periods, superimposing all the measurement detection signals onto each winding of the three-phase inductor to obtain the electrical information of each winding; acquiring each voltage response and each current response caused by the measurement detection signals from the electrical information of each winding; performing multi-frequency response analysis on each voltage response and each current response to determine each loss measurement characteristic; and using a preset measurement map model to analyze each loss measurement characteristic to obtain the three-phase inductor parameter measurement results. The purpose of this invention is to solve the problem that existing measurement methods are difficult to accurately measure high-current adjustable frequency three-phase inductors, leading to low control accuracy and operational stability of motor drive systems.

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