In order to solve the problem that the PI control strategy adopted by the traditional vertical shaft hoist causes large impact on the power grid and poor stability during the process of frequent starting and stopping,accelerating and decelerating,on the basis of the analysis of the working conditions of the vertical shaft hoist,the driving motor of the vertical shaft hoist is designed to match,which lays the foundation of the subsequent selection of frequency converters;secondly,the zero-speed suspension control strategy is proposed and the control effect of the zero-speed suspension control strategy is compared with the control effect of the traditional control strategy.Secondly,the zero-speed suspension control strategy is proposed,and the control effect of the traditional control strategy is compared with the control effect of the zero-speed suspension control strategy;finally,the application effect of the frequency converter in the vertical shaft hoist is verified on site.
frequency convertervertical shaft hoistPI controllerzero-speed hovering control strategystability
NETL
NSTL
维普
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