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在水电站之中的输谁系统,水流从一个稳定状态过渡到另一个稳定状态的过程,就是水电站的水力过渡过程。在这个过程中,输水系统中的水流呈现非恒定流状态,因此,对水电站水压瞬变过程的研究,即水电站压力水管系统和系统中的无约束水道对不稳定的分析和研究流动状态。对于水电站,当水轮发电机组运行情况发生变化时,不仅水运系统出现水力瞬态过程现象,还包括水力发电机组控制系统的运行状态均处于机械过渡过程,因此水电站过渡过程是水力一机械一电气的过渡过程。
In the hydropower station who lose system, the flow of water from one steady state to another steady state process, is the hydropower hydropower transition process. In this process, the water flow in the water delivery system is unsteady. Therefore, the research on the transient process of water pressure in the hydropower station, that is, the analysis on the instability of the pressure water pipe system in the power station and the unconstrained waterway in the system, . For hydroelectric plants, when the operating conditions of hydro-generating units are changed, not only the hydraulic transient phenomenon appears in the water transport system, but also the operating conditions of the hydroelectric generating sets control system are all in the process of mechanical transition. Therefore, the transition process of hydroelectric plants is hydro-mechanical-electrical The transition process.