基于Ansoft Maxwell 2D的PT新型保护装置用电磁脱扣机构的仿真研究

A Research on the Simulation of Electromagnetic Tripping Mechanism Used for New-type PT Protection Devices Based on Ansoft Maxwell 2D

基于Ansoft Maxwell 2D的仿真环境,对设计电压互感器新型保护装置用快速电磁脱扣机构建立仿真模型,并对此环境下的电磁脱扣机构进行了不同故障电流、励磁线圈匝数下的静态、动态特性的电磁力仿真研究,得到不同安匝数下的脱扣装置中电磁滑块所受电磁力的大小,为PT新型保护装置设计和优化提供了依据,同时将仿真结果对比电磁吸力理论计算分析,验证了仿真结果的正确性。

Based on Ansoft Maxwell 2D simulation environment, this paper uses a fast electromagnetic tripping mechanism to establish a simulation model for the designed new protection device for voltage transformers, and makes a simulation study on static and dynamic characteristics of the electromagnetic tripping mechanism in this environment under the conditions of different fauh currents and numbers of excitation coils. The strength of electromagnetic force exerted on the electromagnetic slider in the tripping device is thus obtained for different numbers of ampere turns, thus providing a theoretical basis for the design of the new type PT protection device. Furthermore through comparison between simulation results and theoretical calculation of electromagnetic force, the correctness of the simulation result is verified.