﻿ 基于转子槽谐波的感应电机无传感器测速方法研究

# 基于转子槽谐波的感应电机无传感器测速方法研究Sensorless Speed Detection Method for Induction Motor Using the Rotor Slot Harmonics

>Sensorless speed control of induction machine is a world widely popular topic in the area of electric drive technology. Considering the traditional model based speed estimation very much depends on machine parameters, this paper presents a rotor speed detection method by analyzing the slot harmonics in stator current. As a speed estimation model, the novel method provides an effective reference and a supplement for the sensorless system to improve its performance and reliability. Experimental study was carried out in a 7.5 kW induction machine test rig. By comparing the rotor speed calculation results with the measured results under different loading conditions, the effectiveness of the method is verified.

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