PLC-Based Intelligent Control Method of Governor for Small Hydropower Station
Because of the poor application of traditional methods in the intelligent control of small hydropower station governor,not only the rate of adjustment is relatively low,but also the control response time is relatively long,which can not achieve the expected control effect,so we propose the intelligent control method of small hydropower station governor based on PLC.Through the governor electromagnetic coupling part of the electromagnetic decoupling,deduced the governor mathematical model,through the governor dynamics feature extraction,identified to the governor rotational difference,the use of PLC on the governor rotational difference adjustment,eliminating the governor rotational difference,so as to achieve PLC-based small hydropower station governor intelligent control.It is proved by experiment that the rate of governor rotation is lower than 0.1 V under the application of the design method,and the response time is within 1 s.The design method has a good application prospect in the intelligent control of governor.
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