Existing speed control valves are mostly connected to a pressure compensator to control the output flow,but the common pressure compensator is influenced by hydrodynamic forces,the compensation pressure difference is difficult to maintain a constant value,resulting in poor flow control characteristics of the speed control valve.Due to the influence of non-linear factors,the flow output accuracy of flow valve is low.To solve this problem,an electronically controlled non-linear compensation scheme for speed control valves was proposed,and the Valvistor flow valve was used as the study object.A motor-driven ball screw was used to apply additional force to the pressure compensator,by which not only the hydraulic force of the pressure compensator was compensated in real time,but also the non-linear factors of the flow valve was compensated,making the flow control accuracy be improved.The working principle of the electronically controlled compensated governor valve was analyzed,then a multidisciplinary simulation model of the governor valve was established in SimulationX based on real parameters to analyze the compensation characteristics of the pressure compensator and the Valvistor flow valve respectively.The results show that after compensation,the flow output error values of both the pressure compensator and the flow valve are within 4 L/min,and the error does not exceed 2%,indicating that the speed control valve has good flow control characteristics.