Asynchronous frequency-controlled drive of a mine electric locomotive
- Shakhtinsky Institute - Branch of South-Russian State Technical University (Novocherkassk Polytechnic Institute)
Abstract
The results of asynchronous drive development for mine electric locomotive are presented: selection and construction of traction motors characteristics, a variant of electric drive power part and control system structure. Application of individual frequency converters for each motor is justified. Drive control system forms mechanical characteristic, soft in the area of medium and increased loads with limitation of maximum traction force and hard at low and negative loads with automatic speed limitation and load equalization between traction motors. Circuit diagrams of power converters and the control system using a programmable microcontroller have been developed. Mathematical modeling of the drive using MATLAB system was performed, the results of which confirm the performance of the proposed control system structure.
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