容积控制；执行机构；建模仿真

In order to make the actuator of marine turbine miniaturization and integration,as well as to have a better vibration and noise performance,a new actuator has been proposed based on direct drive volume control in this paper and a simulation model has be established with AMESim.The static and dynamic performances and effectiveness have been studied and verified.Simulation and experiment results show that the dynamic response time of simulation model is longer than actual actuator because the worst conditions in the volumetric efficiency of the pump,the throttling loss of valve and the pipeline resistance are considered in the model.However,the simulation result has enough accuracy in view of the difference between simulation result and experiment result being 0.07%,without considering the dead zone,hysteresis and saturation limit of electric elements such as motor and displacement sensor.

TK263.7

国家自然科学基金（61573239）；上海市自然科学基金（15ZR1418600）；上海发电过程智能管控工程技术研究中心项目（14DZ2251100）