RES Induced for Combustion Optimized Control and Low NOx Emission in Thermal Power Generating Units
(0) Traditional combustion control strategy has been meliorated by introducing Radiant Energy Signal(RES) into combustion control loop, which is based on flame image processing method in thermal power generation units in this paper. A short description of the classical control is given, and one of the root causes of deviation is mainly due to the different response characteristics of leading and inertia control. In addition, the destabilization can’t be overcome, owing to the pure-delay and large-lag from the alternation of coal quality and/or quantity to caloric value signal. Combustion behaviors can be detected by RES transiently, and stable steam temperature, load and steam pressure are obtained because of the rapid response of RES. The new industrial scheme is proved to be practical with in-situ experimental results. The result shows that the dynamic response characteristic of RES is ideal to improve the combustion control quality of the unit, such as boiler efficiency and NOx emission. This is a feasible strategy which has been successfully applied in several power plants.
Flame image processing Radiant energy signal Combustion optimization Emission Load control
Zixue Luo Huaichun Zhou Hui Zhang Guang Zhou
School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan, 430074 China Power Yaomeng Power Co. Ltd, Pingdingshan, 467031, China
国际会议
2007杭州国际动力工程会议(The International Conference on Power Engineering 2007)
杭州
英文
2007-10-23（万方平台首次上网日期，不代表论文的发表时间）