CAJ | 학술논문

研究具有共用管段水力系统的耦合问题,提出水力耦合分解成多个仅依赖于各自管段流量的单变量函数的解耦方法,以解决水力耦合带来的复杂性和困难。将传递函数描述的弹性水击水力动态转化为相对值形式的微分方程模型,与主接力器运动方程构成水轮机的微分方程模型。解耦后的其他管段的耦合作用以附加输入扰动的形式出现在水轮机模型中,实现输入的解耦,可有效简化控制器的设计。仿真表明,所提出的解耦方法是有效的。
연구구유공용관단수력계통적우합문제,제출수력우합분해성다개부의뢰우각자관단류량적단변량함수적해우방법,이해결수력우합대래적복잡성화곤난。장전체함수묘술적탄성수격수력동태전화위상대치형식적미분방정모형,여주접력기운동방정구성수륜궤적미분방정모형。해우후적기타관단적우합작용이부가수입우동적형식출현재수륜궤모형중,실현수입적해우,가유효간화공제기적설계。방진표명,소제출적해우방법시유효적。
Studying on the hydraulic coupling with sharing common conduit,a decoupling method was proposed to reduce its complexity and difficulty in application due to hydraulic coupling,that the hydraulic coupling was approximately decomposed into multi function depending on each penstock flow.The hydraulic dynamics with elastic water column was converted from transfer function to differential equations in relative value,and differential equations model of hydro turbine was composed by connecting it with motion equation of main servomotor.Those couplings of another penstocks obtained by decoupled were taken as additional disturbance in hydro turbine model,which input control was decoupling in this way,and simplify the controller design.The simulation results show that proposed decoupling model is effective.