| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor controller capable of detecting the current of each phase supplied to a motor with higher accuracy by a single current detection element.SOLUTION: The motor controller drives a motor through a power converter converting DC power into polyphase power, and generates a conduction pattern which follows up the rotor position of a motor. Conduction signal generation means is connected to the DC side of the power converter within the conduction control period, and generates a conduction pattern so that a signal generated in a current detection element corresponds at least to the two-phase current, and current detection means detects a phase current based on a signal generated in the current detection element and the conduction pattern. Current correction means corrects the error included in the current detected, and current control means performs current control for generating a conduction pattern from conduction signal generation means depending on a current command value input and a corrected current. Control switching means outputs a correction value operation command, and switches the period when the current control means performs current control while interlocking with the output state of the command. |
