An Evaluation Method of Wind Power Integration in Power Systems with Flexible Combined Heat and Power Plant

Quan Lyu, Haoyan Gong, Nan Yang, Xiandong Xu, Na Zhang and Haixia Wang
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Quan Lyu: Department of Electrical Engineering, Dalian University of Technology, Dalian 116024, China
Haoyan Gong: Department of Electrical Engineering, Dalian University of Technology, Dalian 116024, China
Nan Yang: Department of Electrical Engineering, Dalian University of Technology, Dalian 116024, China
Xiandong Xu: Department of Electrical Engineering, Cardiff University, Cardiff CF243AA, UK
Na Zhang: Liaoning Electric Power Co., Ltd. Institute of Economics and Technology, Shenyang 110015, China
Haixia Wang: Department of Electrical Engineering, Dalian University of Technology, Dalian 116024, China

Energies, 2019, vol. 12, issue 21, 1-17

Abstract: During the heating period in Northeast China, the electricity generated by Combined Heat and Power (CHP) plants has caused a large amount of wind power curtailment. To avoid this curtailment, Heat Storages (HS) and Electric Boilers (EB) are being widely applied to CHP plants. However, the effectiveness of HS and EB on the curtailment of wind power has still not been well evaluated. This paper proposes a new evaluation method consisting of an operation boundary model and an internal coordinated operation model for each flexible CHP plant with HS and EB. Then a system power balance model based on hour-by-hour analysis is established to determine the wind power integration, down-regulation subsidy and the utilization degree of the flexible equipment. The models are validated by using field measured data of a province in China. The results show that the capacity change of the EB has a bigger impact on the down-regulation subsidy than that of the HS, while the EB is more effective when the level of wind power integration is high.

Keywords: wind power integration; flexible CHP plants; heat storage; electric boiler (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: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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