研究了液压恒压网络二次调节系统在大功率软起动装置试验台中的应用 ,建立了控制规律的数学模型 ,按照控制规律 ,调节二次元件的排量 ,实现驱动单元扭矩及转速的调节 ;加载单元 ,不仅能实现功率回收 ,还可通过预建压的方法 ,实现理想的恒扭矩加载。试验台可完全模拟真实的工况试验 The application of the secondary regulation system of hydraulic constant voltage network in the test bench of the high power soft start device was studied. The mathematical model of the control law was established. According to the control law, the displacement of the secondary components was adjusted to adjust the torque and speed of the drive unit. Loading unit, not only to achieve power recovery, but also through pre-built pressure method to achieve the desired constant torque load. The test bench can completely simulate the real working condition test