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A Method for Decomposing Electricity in Electric Power Trading 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: 2021-08-10
昆明电力交易中心有限责任公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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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 Electricity in Electric Power Trading Plan of Hydropower Station
  • A Method for Decomposing Electricity in Electric Power Trading Plan of Hydropower Station
  • A Method for Decomposing Electricity in Electric Power Trading 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

The invention belongs to the field of hydropower dispatching and operation, and relates to a method for decomposing electric power of a hydropower transaction plan, with the goal of minimizing water consumption for power generation, integrating grid grid transmission restriction check and adjustment strategies, and using genetic algorithms to effectively determine the monthly transactions of large hydropower stations Plan electricity decomposition scheme. The details are as follows: collect the actual power generation data of the power station facing the month to calculate the remaining transaction plan power, and build a power decomposition optimization model with the goal of minimizing water consumption during the dispatch period; use genetic algorithms to solve the model, and divide constraints into types according to types There are two types of conventional constraints and grid transportation constraints. The penalty function method and the multi-level grid constraint checking and decomposition strategy are respectively introduced for constraint processing. The network topology is proposed to describe the multi-level grid constraints. Stage adjustment steps to ensure that the decomposition results meet the grid transportation limit requirements. The invention can effectively reduce the water consumption of power generation and has better 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 Patents(China)
IPC IPC(8): G06F17/11G06Q10/06G06Q50/06
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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