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耦合复杂水力联系的跨区交易现货市场出清模型
作者:
作者单位:

大连理工大学水电与水信息研究所,辽宁省大连市 116024

摘要:

上游水电站的发电量通过上、下游水力联系可直接影响下游水电站的可发电量,该水力联系增加了现货市场出清建模与求解的难度。为此提出了耦合复杂水力联系的跨区交易现货市场出清模型。该模型先将非线性约束线性化,然后再引入梯级水电站簇,将复杂水力联系转化成水电站群的最大、最小发电量,进一步将水电机组以满足水电站群发电量约束的等效火电机组方式参与现货市场出清,从而消除复杂水力联系。以云南水电外送广东为例进行验证,结果表明,出清结果能满足各项机组运行约束,并能如实反映市场价格信号;梯级水电站簇发电量约束的阻塞分量可以合理表征流域来水造成的阻塞成本。

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基金项目:

国家自然科学基金资助项目(52039002)。

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作者简介:


Clearing Model for Cross-regional Transaction Spot Market Coupled with Complex Hydraulic Connection
Author:
Affiliation:

Institute of Hydropower & Hydroinformatics, Dalian University of Technology, Dalian 116024, China

Abstract:

The power generation of upstream power stations directly affects the power generation of downstream power stations through the upstream and downstream hydraulic connection. This hydraulic connection increases the difficulty of the establishment and solution of the spot market clearing model. To this end,a clearing model for the cross-regional transaction spot market coupled with complex hydraulic connection is proposed. Firstly, the nonlinear constraints are linearized in this model. Secondly, the cascaded hydropower family is introduced, and the complex hydraulic connection is transformed into the maximum and minimum power generation of cascaded hydropower stations. Furthermore, the hydropower units participate in the spot market clearing by means of the equivalent thermal power units which meet the maximum and minimum power generation constraints of the hydropower station groups, so the complex hydraulic connection is eliminated. Taking the hydropower transmission from Yunnan Province to Guangdong Province as an example for verification, the results demonstrate that the clearing results can meet the various operation constraints of the units, and can reflect the market price signals truthfully; the congestion components of the power generation of cascaded hydropower stations can reasonably represent the congestion cost caused by the basin inflow.

Keywords:

Foundation:
This work is supported by National Nature Science Foundation of China (No. 52039002).
引用本文
[1]钟儒鸿,程春田,廖胜利,等.耦合复杂水力联系的跨区交易现货市场出清模型[J/OL].电力系统自动化,http://doi. org/10.7500/AEPS20201206001.
ZHONG Ruhong, CHENG Chuntian, LIAO Shengli, et al. Clearing Model for Cross-regional Transaction Spot Market Coupled with Complex Hydraulic Connection[J/OL]. Automation of Electric Power Systems, http://doi. org/10.7500/AEPS20201206001.
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  • 收稿日期:2020-12-06
  • 最后修改日期:2021-07-15
  • 录用日期:2021-06-15
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