为克服单边永磁涡流制动法向力，提升制动性能，研究了两种双边Halbach阵列永磁涡流制动特性。利用电磁理论建立空间磁场方程，推导出两种系统各自的制动力解析表达式，并搭建相应的有限元模型验证其解析解的正确性。对比了两种双边Halbach阵列永磁涡流制动方案的制动力，得到低速段时方案1制动力接近方案2制动力的2倍。最后，分析了永磁体长度、高度、气隙、导体板电导率及厚度对方案1制动性能的影响。分析结果表明：为取得最大制动效率，永磁体长高比应为1.2；为避免产生影响系统稳定运行的法向力，上下部气隙应相等；导体板电导率变化不影响最大制动力，但其对应的速度会随其的增大而减小；导体板厚度的变化会同时改变最大制动力及其对应的速度。

In order to overcome the normal force of the singlesided permanent magnet eddy current braking and improve the braking performance, the characteristics of two doublesided Halbach arrays permanent magnet eddy current braking are studied. The space magnetic field equations are established by using electromagnetic theory, and the analytical expressions of the two systems braking force are derived. And the corresponding finite element model is built to verify the correctness of the analytical solutions. The braking forces of the two doublesided Halbach arrays permanent magnet eddy current braking systems are compared, and the braking force of the scheme 1 is close to twice of that of the scheme 2 at low speed. Finally, the influence of the permanent magnet length, permanent magnet height, air gap, conductor plate conductivity and thickness on the braking performance of scheme 1 is analyzed. The results show that the ratio of length to height of permanent magnet should be 1.2 to obtain the maximum braking efficiency. To avoid the normal force affecting the stable operation of the system, the upper and lower air gaps should be equal. The change of conductor plate conductivity does not affect the maximum braking force, but its corresponding speed will decrease with conductor plate conductivity increase. The change of conductor plate thickness will change the maximum braking force and its corresponding speed at the same time.