Authors: V.Yu. Ostrovlyanchik, I.Yu. Popolzin, D.A. Marshev, A.V. Tolstykh, A.V. Drozdova

Title of the article: Controlled current converter for mining lifting installation electric drive based on doublyfed induction machine

Year: 2019, Issue: 1, Pages: 40-46

Index UDK: 621.32

DOI: 10.26730/1816-4528-2019-1-40-46

Abstract: Electric drive based on wound rotor induction motor with resistors in rotor circuit is still used in existing mine hoisting installations despite its limitations. Using of a doubly-fed induction machine with combined control is a promising way to modernize these installations. But it’s hard to ensure the operation of a doubly-fed machine at a low speed, and this fact determines the need to use additional solutions. In this article we propose using the current converter based on power IGBT to organize working of electric drive at a low speed and in brake releasing mode. The proposal is based on the analysis of technological demands for mechanical characteristics of the hoisting installation electric drive. This proposal is actual for modernizing of existing hoisting installations and for designing new ones.

Key words: induction motor mine hoisting installation doubly-fed induction machine speed control controlled current converter

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