Author(s)

Yong He¹, Zhuo Huang^2,3, Yaohua Tang⁴, Weimin Guo⁴, Yuanli Cai^2,3*, Haonan Jiang^2,3

¹State Grid Henan Electric Power Research Institute, Zhengzhou, China.
²Xiamen Institute of Technology, Xiamen, China.
³Faculty of Electronic and Information Engineering, Xi’an Jiaotong University, Xi’an, China.
⁴Rundian Energy Science and Technology Co., Ltd., Zhengzhou, China.

Both the modeling and the load regulation capacity prediction of a supercritical power plant are investigated in this paper. Firstly, an indirect identification method based on subspace identification method is proposed. The obtained identification model is verified by the actual operation data and the dynamic characteristics of the system are well reproduced. Secondly, the model is used to predict the load regulation capacity of thermal power unit. The power, main steam pressure, main steam temperature and other parameters are simulated respectively when the unit load is going up and down. Under the actual constraints, the load regulation capacity of thermal power unit can be predicted quickly.

Supercritical Thermal Power Unit, Subspace Identification, Indirect Identification, Load Regulation

He, Y. , Huang, Z. , Tang, Y. , Guo, W. , Cai, Y. and Jiang, H. (2020) Research on the Prediction of Load Regulation Capacity for Supercritical Thermal Power Unit. Journal of Power and Energy Engineering, 8, 23-36. doi: 10.4236/jpee.2020.88002.