电厂黑启动电源的选择探讨

Discussion on Selection of Black-start Power Source of Power Plant

不同电厂的黑启动方案会因机型和系统接线的差异而不同,但黑启动设计的某些关键因素,如:负荷清单的确定、柴油发电机组选型及容量选择等,却有着原理一致性和可归纳性。结合现有规范中关于火电厂应急柴油发电机组选择的条款,部分修正后用于黑启动柴油发电机组的选择;介绍了6B系列燃机仅借助蓄电池直流系统即可实现黑启动的工程实例,提供了一个思路:必要时,该型燃气轮机可以替代大容量的黑启动柴油发电机,作为电厂的黑启动电源。

Due to different unit types and different system connection, Black-start units of different power plants are not the same. But the key factors of black-start scheme design, such as： black-start load list confirmation, diesel set and its capacity selection, have principle consistency and generalizability. Based on the clause of selection of emergency diesel generator unit on existing standard, this paper put forward the amendments for black-start diesel generator unit selection. The paper introduce the engineering example of 6B series gas turbine unit black-start successfully only with the help of accumulator battery, and provide an idea： 6B series gas turbine unit taking the place of high-capacity series black-start diesel generator unit of gas turbine power plant when necessary.