Research on Down-Regulation Cost of Flexible Combined Heat Power Plants Participating in Real-Time Deep Down-Regulation Market

Yan Zhang, Quan Lyu, Yang Li, Na Zhang, Lijun Zheng, Haoyan Gong and Hui Sun
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Yan Zhang: Department of Electrical Engineering, Dalian University of Technology, Dalian 116024, China
Quan Lyu: Department of Electrical Engineering, Dalian University of Technology, Dalian 116024, China
Yang Li: Huaneng Dalian Power Plant, Dalian 116113, China
Na Zhang: Liaoning Electric Power Co., Ltd., Institute of Economics and Technology, Shenyang 110015, China
Lijun Zheng: Huadian Electric Power Research Institute Co., Ltd., Hangzhou 310030, China
Haoyan Gong: Department of Electrical Engineering, Dalian University of Technology, Dalian 116024, China
Hui Sun: Department of Electrical Engineering, Dalian University of Technology, Dalian 116024, China

Energies, 2020, vol. 13, issue 4, 1-17

Abstract: The issue of real-time deep down-regulation ancillary service has received increasing attention in the Northeast of China. Participation of combined heat and power plants with multitype units and flexible heating devices in the market is investigated. This paper establishes a model of feasible operating region and the coal consumption function for the combined heat and power plant. An internal optimal dispatch model and the minimum overall electric power output model for the plant satisfying a given heat load are presented. Furthermore, the models of total cost for down-regulation and average cost for deep down-regulation in two levels are established. These models are validated based on the realistic data of the plant in the Northeast of China. In case studies, the influence factors and change rules of the minimum electric power output, the total cost, and the average cost of plants are analyzed.

Keywords: combined heat and power plant; real-time deep down-regulation market; cost of down-regulation; flexibility (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
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