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在三峡电厂厂用交流电源全部消失、机组全部停机、外部电网大停电时,电厂可利用三峡电源电站机组具备黑启动功能这一特点,迅速启动电源电站机组,恢复对泄洪闸的供电,保证大坝的安全;给三峡左、右岸电站提供厂用电,恢复三峡电厂的运行,从而恢复对外部电网的供电。文中分析了三峡电源电站机组黑启动的功能及特点,并对黑启动的流程及黑启动成功后对全厂和外部电网的恢复过程进行了分析,提出了合理的恢复电源的步骤,并分析了影响机组黑启动的关键因素。
In the Three Gorges power plant plant with AC power disappeared, the unit shut down, the external power grid blackout, the power plant can use the Three Gorges power plant units with black start features this feature, quickly start the power station units to restore the power supply to the flood gates to ensure large Dam safety; to provide power plants to the Three Gorges left and right bank power plants to resume operation of the Three Gorges power plant, thereby restoring the power supply to the external power grid. This paper analyzes the functions and features of black start of the Three Gorges Power Station, and analyzes the black start process and the recovery process of the whole plant and the external power grid after the black start is successful, and puts forward the reasonable steps to restore the power supply. Key Factors Affecting Black Start of Unit.