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本文分析了传统步进电机、交流伺服电机在水轮机调速器上的电-位移转换机构的控制及特性,考虑到步进式、交流伺服电机的控制方式的优缺点,将一种步进伺服电机运用到水轮机调速器的电-位移转换器,并对控制方式进行了技术改进,取消了引导阀位移反馈环节,采用模拟量定位控制,并成功应用到水轮机调速器上,其性能指标满足国家标准的要求,下文对该机构进行详细陈述。
This paper analyzes the control and characteristics of the traditional stepper motor and AC servo motor in the hydraulic governor of the turbine governor. Taking into account the advantages and disadvantages of stepping, AC servo motor control methods, a stepper servo The motor is applied to the electric-displacement converter of turbine governor, and the control method is improved. The displacement feedback of pilot valve is canceled. The analog position control is adopted and successfully applied to turbine governor. Its performance index Meet the requirements of national standards, the following detailed statement of the agency.