中国电力2018，Vol.51Issue(3)：29-34,6.DOI:10.11930/j.issn.1004-9649.201711004
660MW机组汽泵电泵并列运行的给水控制及RB策略
Control Strategy and RB Logic of the Feed-Water System with Steam-Driven and Motor-Driven Pumps in Parallel for 660-MW Units
邢智炜 1岳涛 1刘磊1
作者信息
- 1. 华北电力科学研究院有限责任公司,北京 100045
- 折叠
摘要
Abstract
Regarding the feed-water system with steam-driven and motor-driven pumps in parallel in the 660 MW once-through unit of Tashan Power Generation Co Ltd,the "water following coal" method and the intermediate steam temperature modification are used for the control of the feed-water system.The demand of the water system is transformed to the control signals fed into the motor-driven pump in terms ofpolyline function.Therefore,the steam-driven and motor-driven pumps can operate simultaneously and contribute to the control of the feed-water system.During the runback (RB) of the steam-driven water pump,by interlocking the start of motor-driven pump and increasing the opening percentage of the scoop tube,the supply water flow is reduced smoothly such that the steam temperature can be kept steady.The operation and test results show that the control strategy for the feed-water system can ensure the safety and stability of the unit in operation.In addition,in the feed-water pump runback process,the unit can shed the load promptly and steadily while the transition of major parameters still remains smooth.关键词
直流炉机组/给水控制/RB/汽动给水泵/电动给水泵/并列运行Key words
once-through unit/control of feed-water system/runback (RB)/steam-driven water pump/motor-driven water pump/parallel running分类
能源科技引用本文复制引用
邢智炜,岳涛,刘磊..660MW机组汽泵电泵并列运行的给水控制及RB策略[J].中国电力,2018,51(3):29-34,6.
