As a new type of pulsed power supply, compensated pulsed alternator ( CPA ) concentrates all the functions of energy storage, electromechanical conversion and power conditioning in one machine. These integrating advantages make it the promisingly compact power supply system suitable for electromagnetic rail gun. 补偿脉冲发电机是一种新型脉冲功率电源,集惯性储能、机电能量转换和脉冲成形于一体,具有单元件的综合优势,是电磁轨道炮的首选脉冲电源。