Multi-parameter optimization of proportional electromagnet in electro-hydraulic compound governor
Proportional solenoid is the electromagnetic driving element of diesel engine electro-hydraulic compound speed control system,and its electromagnetic force characteristics affect the accuracy and stability of the whole speed con-trol system.Firstly,the simulation model of proportional electromagnet was built using Ansys Maxwell software,and the ac-curacy of the model was verified by the test platform of solenoid valve.Then the structure size of the electromagnet was parameterized,and the key parameters that affect the electromagnetic force characteristics of the proportional electromagnet were obtained.Finally,the quadratic regression model of mean electromagnetic force,mean square error of electromagnetic force and upper magnetic separation angle,magnetic separation ring position and armature radius was established by using response surface method combined with genetic algorithm.The result shows that compared with the original scheme,the structural parameter combination scheme optimize by genetic algorithm can significantly improve the electromagnetic force characteristics of the proportional electromagnet,the average electromagnetic force is increased by 8.56％,and the mean square error of the electromagnetic force is decreased by 59.63％.
proportional solenoidelectromagnetic force characteristicgenetic algorithmsresponse surface mod-elsparameter optimization
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