The Influence of Electromagnetic Interference on the Hydro-turbine Governor and Countermeasures
With the development of hydropower plant automation,intelligent demand continues to improve,more and more electrical control equipments enter hydropower plant,hydro-turbine governor as the core of turbine control equipment is facing a severe test in the increasingly complex electromagnetic environment Aiming at the electromagnetic interference problem of hydro-turbine governor of a hydropower plant meet,find by hard and thorough search analyzes the electromagnetic interference source and transmission,and puts forward some practical and effective measures to solve.To improve the electromagnetic immunity of hydro-turbine governor,combined with the electric property and structure characteristics of hydro-turbine governing system,this paper specifically proposed EMC solution from 3 points of grounding,shielding and filtering.The hydro-turbine governors with the electromagnetic compatibility measures successfully passed the electromagnetic compatibility test(GB),and withstand several power plant practices running test,and provide reliable guarantee for safe operation of hydropower plant.