Design and Research of Automatic Variable Frequency Control System for Coal Mine Belt Conveyor
In order to further improve the operating efficiency of the coal mine belt conveyor and re-duce the operating power consumption of the belt conveyor,aiming at the problems of low operating efficien-cy,poor operating stability and serious power loss caused by the mismatch between the belt speed and the coal transportation amount of the belt conveyor running at constant speed,the frequency conversion control and adaptive speed regulation technology of the belt conveyor are studied,and a set of automatic frequency conversion control system of the belt conveyor based on adaptive speed regulation is designed.The fuzzy con-trol algorithm and fuzzy controller method are used to realize the real-time adjustment of the output frequen-cy of the frequency converter.At the same time,it has the protection functions of anti-coal piling,anti-de-viation and anti-slip of the belt conveyor,and realizes the intelligent distribution of the motor power of the belt conveyor and the adaptive adjustment of the belt speed following the coal amount.When the belt convey-or is under no-load and light-load operating conditions,the belt speed can be automatically adjusted to make the belt conveyor enter low-power operation,effectively reduce the system power loss and reduce the wear of the equipment.After testing,the automatic frequency conversion control system can effectively re-duce the running power consumption of the belt conveyor and achieve the purpose of energy-saving opera-tion.
coal minebelt conveyorenergy-saving operationfuzzy control
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