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| Planning of Flexibility Retrofits of Thermal Power Units Considering Multi-Agent Game |
| Guo Tong1, Li Yonggang1, Xu Shanshan1, Gao Yajing2, Liu Jiaomin1 |
1. Department of Electrical Engineering North China Electric Power University Baoding 071003 China;
2. China Electric Power Enterprise Federation Technical and Economic Consulting Center Beijing 100761 China |
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Abstract For countries with coal as their main energy source, implementing the flexibility retrofit of thermal power units is the most realistic and feasible option to improve the power system flexibility. This paper proposes a two-stage planning method for the retrofit planning based on multi-agent game. First, the different subsystems and diverse technologies involved in the flexibility retrofitting had been overviewed. Second, in the system planning stage, the profit model for power generation companies in the down-regulation and energy market was constructed, considering the game behavior of different investment entities. Then, a fast solution method was proposed to solve the large-scale game iterative operation problem. Third, in the company planning stage, a mixed-integer planning model for multi-technology retrofit of power generation companies was established. The model aims to minimize the company’s operation and investment cost, constrained by flexibility constraints and the results of the system planning stage. Finally, the rationality and effectiveness of the proposed model and method were verified by a case study. The results show that the proposed method can balance the interests of all investment entities, effectively ensure market vitality, and provide assistance to planning departments and power generation companies.
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Received: 11 September 2019
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2020, Vol. 35 
