A direct transaction method for cross-regional and cross-provincial power users considering the influence factors of transmission network loss
A technology of influencing factors and transaction methods, applied in the direction of buying and selling/leasing transactions, data processing applications, instruments, etc., can solve the problems of large geographical differences among market members, unfair power market transactions, and differences in transmission network losses that cannot be ignored.
Inactive Publication Date: 2020-12-29
STATE GRID CORP OF CHINA +2
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Problems solved by technology
[0005] Disadvantages of the existing technology: the geographical location of market members participating in cross-regional and cross-provincial direct transactions is quite different, and the difference in transmission network loss due to geographical location cannot be ignored
The existing technology does not consider the impact of transmission network loss caused by different transactions when dealing with direct transactions of large users across regions and provinces, which may easily lead to unfair transactions in the power market
Method used
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[0074] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0075] 1. A method for direct trading of power users across regions and provinces considering the impact factors of transmission grid loss, characterized in that the method includes the following steps:
[0076] (1) Establish a mathematical model for direct power purchase transactions of large users across regions and across provinces considering transmission grid loss
[0077] The assumption of the model: only consider the cost of network loss related to active power; the correlation between network loss and active power is stronger than that of reactive power. The more nodes in the system, the longer the calculation time. In order to speed up the calculation, the influence of reactive power is ignored ;
[0078] Assuming that the number of users in the large user direct purchase transaction is n, the number of power generation companies i...
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The invention belongs to the field of direct trading for large power users and particularly relates to a direct trading method considering influence factors of grid losses and using a centralized matching method for cross-district and cross-province power users. The direct trading method includes the steps of (1) the establishment of a mathematical model of direct electricity purchasing trade considering the grid losses for cross-district and cross-province power users; (2) a measuring method of the influence factors of the grid losses; (3) ordering rules of direct purchasing trade considering the grid losses for cross-district and cross-province large users; (4) a matching process of direct trading considering the grid losses for cross-district and cross-province large users. The direct trading method has the advantages of considering the influence of grid losses on the premise that the ordering rules of direct purchasing trade for cross-district and cross-province large users comply with the principle of 'price priority and energy conservation and environmental protection priority', allowing trading methods to be further elaborated, and being more beneficial for preserving the trade fairness of the power market.
Description
technical field [0001] The invention belongs to the field of direct transaction of large electric power users, and in particular relates to a direct transaction method for cross-regional and inter-provincial electric power users in a centralized matching mode in consideration of transmission network loss influence factors. Background technique [0002] Cross-regional and cross-provincial large-scale user direct transactions refer to the direct transactions between power generation companies in different power grids and power users who have access to higher voltage levels and have a certain power purchase scale, and sign transaction contracts. Utilize the advantages of power grid interconnection to promote resource allocation, energy conservation and emission reduction, and ensure power balance and safe supply. The market entities for direct transactions of large users across regions and provinces are divided into electricity sellers, transmission entities, and electricity bu...
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IPC IPC(8): G06Q30/02G06Q30/06G06Q50/06
CPCG06Q30/0278G06Q30/0611G06Q50/06Y04S50/10Y04S50/14
Inventor高春成张显王蕾刘永辉雷少锋孙炜酉章良史述红方印王清波陶力袁明珠代勇常新李守保刘杰赵显谭翔汪涛袁晓鹏王春艳林禄辉吴雨健
OwnerSTATE GRID CORP OF CHINA