基于改进遗传算法的高压隔离开关主开关机构优化设计OA

Horizontal pantograph high voltage disconnector is widely used in high voltage power grid due to its small footprint and provision of a clearly visible isolation gap.However,a large variation of gravity torque of the main blade mechanism is generated during the opening and closing operation.In addition to installing the appropriate switch spring,the structure also needs to be optimized so to reduce the driving torque required by the mechanism.In this pa-per,the 550 kV AC high voltage disconnector is taken as the object,the mechanical analysis of the main switch mech-anism is performed and,on the basis of the improved genetic algorithm,the optimized design of the main switch mecha-nism is performed,the dynamic simulation model is set up and verified so to determine the minimum value of the mo-tor driving torque required for the high voltage disconnector.The results show that the maximum motor driving torque required by the improved genetic algorithm,compared with the traditional scheme,is reduced by 22%and the varia-tion of driving torque is reduced by 43%.After the optimization,the force of the transmission part of the main switch mechanism of the horizontal pantograph high-voltage disconnector and the torque variation during the operation peri-od are reduced,thereby improving the stability of the opening and closing operation of the high-voltage disconnector.