采用永磁励磁、两极两相、被动补偿结构，设计了一台小型补偿脉冲发电机。使用有限元软件对电机进行空负载电磁特性分析；永磁体采用厚度为12 mm的钕铁硼材料，空载时气隙最大磁感应强度为0.443 T。在60 000 r/min的设计转速下，单相开路电压峰值为195.4 V，铁心损耗功率为599 W。对电阻值1 mΩ，电感值1 μH的小阻抗负载分别进行了单相放电、两相并联放电及两相串联放电仿真，单相放电电流峰值为10.90 kA，脉宽0.78 ms；两相并联放电电流峰值14.64 kA，脉宽1.1 ms；串联放电电压峰值增至333.7 V，电流峰值为8.59 kA。电机储能大于4 MJ，脉冲功率大于2 MW，且结构紧凑，具有较高的能量密度和功率密度。

A two-pole two-phase passive compulsator is designed, whose magnetic field is built by permanent magnet. The compulsator’s no-load and discharge magnetic characteristics are analyzed by using finite element software. The Nd-Fe-B material is adopted as the permanent magnet, in thickness of 12 mm. The maximum magnetic flux density in the air gap is 0.443 T at the no-load state. At the designed rotor speed of 60 000 r/min, the single-phase open circuit peak voltage and the core loss power are 195.4 V and 599 W respectively. The single-phase discharge, two-phase parallel discharge and two-phase series discharge processes are simulated separately, to a small impedance load at 1 mΩ, 1 μH. The peak value of single-phase discharge current is 10.90 kA, and the pulse width is 0.78 ms. For two-phase parallel discharge, the peak current value and pulse width are 14.64 kA and 1.1 ms respectively. For two-phase series discharge, the peak voltage rises to 333.7 V, while the peak current drops to 8.95 kA. The compulsator’s energy storage is greater than 4 MJ, whose pulse power is greater than 2 MW. The alternator　has compact structure, high energy and power density.