为深入研究引水发电系统的水力干扰过渡过程,基于引水管道、水轮机、发电机等详细模型建立了多机引水发电系统高阶模型.以带有分岔引水管道结构的多机引水式电站为例,通过对并入无穷大电网和带孤立负荷2种运行方式下机组间的水力干扰过程进行仿真研究,探讨了多机引水发电系统水力干扰过程中的水力、电气过渡过程及相互影响.结果表明:多机引水发电系统中的水力联系导致各机组间水力、电气系统相互耦合,相互影响;不同运行方式下,水力干扰过程对水力系统与电气系统的作用和影响差别很大.%To further study on the hydraulic turbulence transient process of hydroelectric power plants ,a high-order model of the whole hydroelectric power system based on the detailed models of conduits ,hydro turbine ,generator and other components ,was developed in this study .For both cases in which hydroelectric power plant operates with infinite bus and isolated load ,interac-tions between hydraulic system and electric system were analyzed by the simulation of hydraulic turbulence transient processes be-tween different generation units in a hydroelectric power plant with branch pipes .The results showed that the hydraulic connec-tion between hydro-coupled units caused interactions in hydraulic system and electric system in multi-unit hydropower plant ,and these interactions varied greatly under different operating conditions .
展开▼
