CAJ | 학술논문

目前中小型液压调速器广泛采用可编程控制随动技术．这种调速器与机械液压型调速器和电气液压型调速器相比，调速器体积小，运行性能可靠，调节稳定性好，调速功率大．液压件采用标准化的数字阀式液压元件，集成化程度高．针对此类高油压水轮机微机调速器的液动换向阀卡阻造成调速器无法关机问题，通过增设一套紧急停机后备保护装置作为改造方法．改造后的调速器性能良好，运行可靠，保证了水电站机电设备的运行安全．
목전중소형액압조속기엄범채용가편정공제수동기술．저충조속기여궤계액압형조속기화전기액압형조속기상비，조속기체적소，운행성능가고，조절은정성호，조속공솔대．액압건채용표준화적수자벌식액압원건，집성화정도고．침대차류고유압수륜궤미궤조속기적액동환향벌잡조조성조속기무법관궤문제，통과증설일투긴급정궤후비보호장치작위개조방법．개조후적조속기성능량호，운행가고，보증료수전참궤전설비적운행안전．
A microcomputer governor with the programmable controller and digital value hydraulic turbine governor servo system is widely used in various types of small and medium size hydro-generating units. Compared with engine or electric hydraulic pressure governors, this one proved to be reliable in performance, stable in regulation, small in size and high in power. As adopting standard digital hydraulic pressure components, it has a high degree of integration. But in recently years, this microcomputer governor of high oil pressure hydraulic turbine can＇t be closed down because of the jamming of hydraulic selector value. A modifying program of the reserve protection after emergency power shut off is proposed in this paper. And the improved governor run well and ensured the operation safety of equipments in hydroelectric stations.