Abstract
In this paper, the BPJA-1200/6K mine-used high-voltage frequency converter designed and developed with Power Flex7000 is introduced. How to replace the fluid coupling used in original belt conveyor system with the converter to achieve the purpose of speed regulation by frequency variation as well as long distance driving are discussed. At the same time, the composition of the centralized control system for the belt conveyor is discussed and the speed regulation strategy and the main control functions are introduced. The converser system has been applied to a mine belt conveyor and the running results are better.
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