Economic Dispatching for Power System of Concentrated Solar Power Plant with Thermal Energy Storage and Wind Power Considering Conditional Value-at-Risk
Che Quanhui1, Lou Suhua1, Wu Yaowu1, Luo Qian1, Liu Baolin2
1. State Key Laboratory of Advanced Electromagnetic Engineering and Technology Huazhong University of Science and Technology Wuhan 430074 China 2. Yunnan Power Grid Company Kunming 650000 China
Abstract：The concentrated solar power plant with thermal energy storage is a schedulable renewable energy power generation technology, and its integration provides a new technical means for achieving high proportion of renewable energy consumption. In this paper, the controllable characteristic of concentrated solar power plant with thermal storage is used to reduce the impact of peak shaving after large-scale wind power integration. Considering that the uncertainty of wind power and illumination power will increase the risk of dispatching operation, and referring to the concept of risk management in financial field, this paper introduces conditional value-at-risk (CVaR) to measure the risk loss caused by uncertainties to power generation dispatching. With the aim of minimizing the total dispatch cost and risk cost of the system, this paper establishes an economic dispatch model of power system with concentrated solar power plant and wind power system. The proposed model is simulated by using IEEE 39-node system, and then the effects of different risk factors, heat storage capacity and wind power access capacity on the optimal scheduling results are discussed.
车泉辉, 娄素华, 吴耀武, 罗谦, 刘宝林. 计及条件风险价值的含储热光热电站与风电电力系统经济调度[J]. 电工技术学报, 2019, 34(10): 2047-2055.
Che Quanhui, Lou Suhua, Wu Yaowu, Luo Qian, Liu Baolin. Economic Dispatching for Power System of Concentrated Solar Power Plant with Thermal Energy Storage and Wind Power Considering Conditional Value-at-Risk. Transactions of China Electrotechnical Society, 2019, 34(10): 2047-2055.
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2019, Vol. 34 
