Power day-ahead market clearing method with flexible constrained condition

Abstract

The invention relates to a power day-ahead market clearing method with flexible constrained condition, and belongs to the technical fields of power system scheduling and power marker transaction. Themethod comprises that a power day-ahead market clearing mathematical model with flexible constrained condition is constructed, a constrained condition flexible day-ahead marking clearing result is obtained by calculation, a renewable energy uniform reduction model without consideration of deep peak shaving is constructed, a renewable energy uniform reduction result is obtained by calculation, anda deep peak shaving clearing price and a reduction avoiding clearing price are calculated. The thermal power set and renewable energy modeling method and thermal power deep peak shaving and renewableenergy reduction balanced modeling method as well as the renewable energy uniform reduction model with the flexible constraint condition are provided, technical support is provided for day-ahead marker clearing or day-ahead plan arrangement with the flexible constraint condition considering the thermal power deep shaving and ordered renewable energy reduction, the difficulty in coordinating thermal power and renewable energy in the day-ahead marker is overcome, and consumption of the renewable energy is prompted.

Description

Technical field [0001] The invention provides a method for clearing the electricity day-ahead market with flexible constraint conditions, belonging to the technical field of power system dispatching and power market trading. Background technique [0002] In recent years, China’s renewable energy has developed rapidly and installed capacity has continued to increase. However, the issue of “three abandonment” of renewable energy has become more and more prominent, which has severely restricted my country’s energy conservation and emission reduction and caused serious economic losses. In the traditional power system dispatching, the thermal power unit can only be dispatched between the minimum economic output and the installed capacity (Xu Qingshan, Ding Yifan, Ji Yongli. A method of power grid security optimization dispatching considering demand response[P].江苏 : CN106712005A, 2017-05-24.) (Huang Qiang, Meng Anbo. A power system dispatch method [P]. Guangdong: CN107294126A, 2017-10-2...

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Problems solved by technology

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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