【作者】 王子建； 何俊佳； 尹小根； 边凯； 张汉明；

【Author】 (College of Electrical and Electronic Engineering,Huazhong University of Science and Technology,430074,Wuhan) WANG Zi-jian HE Jun-jia YIN Xiao-gen BIAN Kai ZHANG Han-ming

【机构】 华中科技大学电气与电子工程学院；

【摘要】 在对电磁斥力机构进行合理简化的基础上,利用有限元分析软件 Maxwell,建立了用于电磁斥力机构场路耦合瞬态动力学特性分析的二维有限元模型,并利用该模型对开断过程中的磁场、电流密度分布、驱动电流、电磁力、位移以及速度随时间的变化情况进行了仿真分析。为了验证仿真模型的正确性,建立了简化的实验验证模型,并在不同储能电压下,对验证模型的放电电流以及开断时间进行了实际测量,测量结果表明实验值与仿真值较为吻合。最后就不同结构参数对电磁斥力机构动力学特性的影响进行了分析,给出了一般性的优化设计指导原则,为该机构的设计制造以及工程分析提供了理论依据。更多还原

【Abstract】 Based on some reasonable simplifications,a two dimensional(2D)coupled field-circuit finite element model to analyze the transient dynamic characteristics of the electromagnetic repulsion mechanism is presented using Maxwell program.In order to verify the validity of the simulation results,a simplified electromagnetic repulsion mechanism is established.The discharge current and the opening time are measured,and compared with simulation results,a good agreement between them can be observed.Finally,detailed investigations are done through simulation regarding the impacts of various structure parameters on the dynamic characteristics of the electromagnetic repulsion mechanism,some general criteria governing optimal design are thereby summarized,and the result provides a theoretical basis for the design and engineering analysis.更多还原