A Day-ahead Electricity Market Clearing Method with Elastic Constraints
A technology with constraints and market clearance, applied in circuit devices, AC network circuits, instruments, etc., can solve the problem of not refining various resource modeling, and unable to achieve the optimal and maximum consumption of renewable energy in the whole system. and other problems, to achieve the effect of improving the level of power system dispatching, promoting consumption, and improving safety
Active Publication Date: 2021-08-13
TSINGHUA UNIV +2
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At present, there have been reports related to the use of peak shaving resources for renewable energy grid integration (Yuan Bo, Zhang Jinfang, Wang Yaohua, Wang Xiaochen, Li Nan, Zhang Fuqiang, Feng Junshu, Zheng Kuan, Jiao Bingqi, Yan Xiaoqing, Wu Shengyu, Wang Gang, Zhang Tao, Wang Jiangbo, Liu Junhui. Decision-making method for peak-shaving resource deployment adapted to large-scale renewable energy grid integration [P]. Beijing: CN107276122A, 2017-10-20.), but only for various peak-shaving resources according to their cost and callable capacity, for Peak shaving resource calls are sorted, but the day-ahead planning and scheduling of the power system is not realized in consideration of deep peak shaving, and various resources are not modeled in detail, nor are various resources based on their physical characteristics. The joint optimization of all hours of the day cannot achieve the optimization of the whole system and the maximum consumption of renewable energy
[0004] To sum up, there are currently no reports related to the day-ahead power market clearing method with flexible constraints
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[0085] The day-ahead electric power market clearing method with flexible constraint conditions proposed by the present invention, its flow chart is as follows figure 1 shown, including the following steps:
[0086] 1) Construct a mathematical model for the day-ahead electricity market clearing with flexible constraints consisting of objective functions and constraints. There are two forms of energy involved, namely thermal power and renewable energy. Renewable energy includes uncontrollable renewable energy. There are two forms of energy and regulated hydropower, among which the uncontrollable renewable energy is run-of-river hydropower, wind power and photovoltaic respectively. The specific process is as follows;
[0087] 1-1) The objective function of constructing a mathematical model of electric power day-ahead market clearing with elastic constraints is as follows:
[0088]
[0089] The objective function indicates that the total operating cost of the power system is m...
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The invention relates to a day-ahead electric power market clearing method with flexible constraint conditions, which belongs to the technical field of power system dispatching and power market transactions, including building a mathematical model for clearing the power day-ahead market with flexible constraint conditions, and obtaining the elastic day-ahead day of constraint conditions The market clears the result, builds a renewable energy uniform reduction model that does not consider deep peak shaving, calculates the renewable energy uniform reduction result, calculates the deep peak shaving clearing price and avoids cutting the clearing price. This method proposes a modeling method for thermal power units and renewable energy with flexible constraints, a modeling method for the balance between thermal power deep peak regulation and renewable energy reduction, and a model for uniform reduction of renewable energy. The flexible day-ahead market clearing or day-ahead planning arrangements provide technical support for the constraints of the orderly reduction of renewable energy, which solves the problem of coordinating and interchanging thermal power and renewable energy in the day-ahead market, and promotes the consumption of renewable energy.
Description
technical field [0001] The invention discloses a day-ahead electric power market clearing method with flexible constraint conditions, which belongs to the technical field of electric power system scheduling and electric power market transactions. Background technique [0002] In recent years, China's renewable energy has developed rapidly and its installed capacity has continued to increase. However, the problem of "three wastes" of renewable energy has become more and more prominent, seriously restricting my country's energy conservation and emission reduction, and causing serious economic losses. In traditional power system dispatching, thermal power units can only be dispatched between the minimum economic output and installed capacity (Xu Qingshan, Ding Yifan, Ji Yongli. An optimal dispatching method for power grid security considering demand response [P]. Jiangsu : CN106712005A, 2017-05-24.) (Huang Qiang, Meng Anbo. A power system dispatching method [P]. Guangdong: CN10...
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IPC IPC(8): H02J3/46G06Q50/06
CPCG06Q50/06H02J3/46H02J2203/20Y04S10/50
Inventor马子明钟海旺赖晓文夏清康重庆
OwnerTSINGHUA UNIV