基于Maxwell 3D的不同磁路双定子单转子电磁制动器制动力矩研究

摘要

对于双定子单转子电磁制动器,研究了两种磁路结构方案.借助Maxwell软件三维求解器,采用有限元法对两种磁路结构的电磁制动器进行仿真分析,验证了其可行性.比较了两种磁路下电磁制动器的转子电涡流、制动力矩,不同励磁电流下制动力矩响应情况,不同转子材料下制动力矩响应情况以及不同气隙长度下制动力矩响应情况.结果表明双定子单转子电磁制动器第一种磁路结构制动特性优于第二种.%For double stators-single rotor electromagnetic brake, two kinds of magnetic circuit structures were researched. With the three-dimensional solver of Maxwell software, the electromagnetic brake of two magnetic circuit structures was simulated by the finite element method, and its feasibility was verified. Under the comparison of the electromagnetic brake of two magnetic circuit structures, the rotor eddy currents, braking torque and braking torque responses for different exciting currents, different rotor materials and different air gap length were obtained, and the results showed that the first magnetic circuit' s braking characteristic was superior to the second one for double stators-single rotor electromagnetic brake.