Control Strategy for operating flexibility of coal-fired power plants in alternate electrical power systems

被引：0
作者：
Liu, Jizhen [1 ]
Zeng, Deliang [1 ]
Tian, Liang [1 ]
Gao, Mingming [1 ]
Wang, Wei [1 ]
Niu, Yuguang [1 ]
Fang, Fang [1 ]
机构：
[1] State Key Laboratory of Alternate Electrical Power System With Renewable Energy Sources (North China Electric Power University), Changping District, Beijing
来源：
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2015年 / 35卷 / 21期
关键词：
Alternate electrical power system; Coal-fired power plants; Cold source throttling; Condensate throttling; Flexibility; Low-load operation;
D O I：
10.13334/j.0258-8013.pcsee.2015.21.001
中图分类号：
学科分类号：
摘要：
To improve the operating flexibility of coal fired units is an effective and necessary way for our country and even the world to solve the problem of large-scale renewable energy integration in grid. Five key strategies including the condensate throttling, cold source throttling, extraction steam adjustment of heating units, optimal load dispatch in power plants, and wide-range load operation of circulating fluidized bed (CFB) units, were given and introduced exquisitely. The static and dynamic models for the condensate throttling and cold source throttling were set up, which had enough accuracy to be directly used for the design of control system and strategy. The combination coordinated control with condensate throttling or cold source throttling was designed, which can greatly reduce the stepping out time from the load change dead zone, and accelerate the load change speed. © 2015 Chinese Society for Electrical Engineering.
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页码：5385 / 5394
页数：9
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