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A method for decomposing electric quantity of electric power trade plan of hydropower station

A technology for power trading and hydropower stations, which is applied in the field of electricity decomposition in hydropower trading plans to achieve good practicability and reduce water consumption for power generation

Active Publication Date: 2019-02-19
昆明电力交易中心有限责任公司 +1
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Problems solved by technology

For Yunnan Power Grid, which is dominated by hydropower, power trading has achieved rapid progress in recent years, but it also faces many new difficulties

Method used

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  • A method for decomposing electric quantity of electric power trade plan of hydropower station
  • A method for decomposing electric quantity of electric power trade plan of hydropower station
  • A method for decomposing electric quantity of electric power trade plan of hydropower station

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specific Embodiment approach

[0034] In the decomposition process of transaction plan electricity, it is first necessary to collect the actual electricity generated and the transaction plan electricity, and calculate the remaining transaction plan electricity, and then consider the constraints of the grid structure to build a decomposition optimization model with the goal of minimizing water consumption during the dispatch period , and use the genetic algorithm and the penalty function and the coupling processing strategy of the grid limit constraint to determine the planned power decomposition scheme of the hydropower station. The specific implementation is as follows:

[0035] (1) Mathematical model

[0036] (a) Objective function

[0037] Aiming at the minimum water consumption of power generation during the dispatching period, a power decomposition optimization model for the hydropower station transaction plan is constructed, as follows:

[0038]

[0039] (b) Constraints

[0040] Battery balance ...

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Abstract

A method for decomposing electric quantity of an electric power trade plan of a hydropower station features that that minimum electric power consumption is taken as objective, the transmission restriction check and adjustment strategy of grid frame is integrated, and the genetic algorithm is used to effectively determine the monthly electric quantity decomposition scheme of electric power trade plan of large-scale hydropower station. The main contents are as follows: the data of actual power generation in a month are acquired to calculate the remaining transaction planned power and construct the power decomposition optimization model aiming at the minimum water consumption in the dispatching period; the genetic algorithm is used to solve the model, and the constraints are classified into two types: the conventional constraints and the grid transport constraints, The penalty function method and the multi-level grid structure constraint checking decomposition strategy are introduced to deal with the constraints respectively, and the network topology structure is proposed to describe the multi-level grid structure constraint, and the two-stage adjustment steps of output reduction andtransfer are adopted to ensure that the decomposition results meet the requirements of grid structure transportation constraints. The invention can effectively reduce the water consumption of power generation, and has good practicability.

Description

technical field [0001] The invention belongs to the field of hydropower dispatching operation, and in particular relates to a method for decomposing electric quantity of a hydropower transaction plan. Background technique [0002] The promulgation of Zhongfa [2015] No. 9 document in March 2015 opened the prelude to a new round of power market reform in my country. Yunnan and Inner Mongolia, as the first batch of pilot provinces for electricity market-oriented trading in the country, respectively target hydropower and coal power as the main power trading resources. For Yunnan Power Grid, which is dominated by hydropower, power trading has achieved rapid progress in recent years, but it also faces many new difficulties. [0003] At this stage, most of Yunnan's power market transactions are in the form of electricity trading. According to the transaction cycle, it is divided into three trading cycles: annual, monthly, and day-ahead. Among them, the annual electricity market an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/0637G06Q50/06Y02E40/70Y04S10/50
Inventor 张茂林申建建刘双全程雄周娜程春田马高权张一谢蒙飞张俊涛和佩珊刘祥瑞
Owner 昆明电力交易中心有限责任公司
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