Multi-objective Optimization for Proportional Electromagnet Structure Based on Maxwell
In view of the poor force-stroke characteristic horizontal performance of the proportional electromagne,the multi-objec-tive optimization of the proportional electromagnet was carried out by considering multiple electromagnet influence factors.The orthogonal experiment was designed using the structural parameters of the proportional electromagnet as variables,and the simulation experiment was carried out by using Maxwell.A set of optimal scheme was gotten.In view of the large fluctuations in electromagnetic force at low working gaps,the Kriging surrogate model was built,and the electromagnetic force was further optimized by using NSGA-Ⅱ algorithm.The experimental results show that the proportional electromagnetic force-stroke characteristic optimized by orthogonal experiment is 1.78 times higher than that of the initial proportional electromagnet.After the optimization of NSGA-Ⅱ algorithm,the electromagnet force fluctuate less at low working gaps,the comprehensive performance of the optimized proportional electromagnet is 11.9 times higher than that of the initial proportional electromagnet,and the maximum error of force-current linearity is about 4％.The optimized model can better meet the accuracy requirements for the use of proportional solenoid valve in wheel brake units.
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维普
