| 引用本文: | 栗然,李永彬,翟晨曦,吕子遇,段秦刚.基于集对分析和风险理论的变电站主接线综合评价[J].电力系统保护与控制,2017,45(11):81-88.[点击复制] |
| LI Ran,LI Yongbin,ZHAI Chenxi,Lü Ziyu,DUAN Qingang.Comprehensive evaluation of substation main connection based on set pair analysis and risk theory[J].Power System Protection and Control,2017,45(11):81-88[点击复制] |
|
| 摘要: |
| 新《调规》着重强调了负荷对于电网的重要性，因此在评估和选择变电站主接线时，有必要从电网层面评估不同变电站主接线形式的失负荷风险。针对变电站主接线评价过程中的不确定性信息，提出一种基于集对分析和风险理论的变电站主接线综合评价方法。该方法首先从电网层面对变电站主接线进行风险评估，将评估结果作为变电站主接线的可靠性评价指标。然后利用改进熵权法得到各评价指标的权重系数，通过集对分析法对评价方案进行不确定性分析。最后综合一次、二次排序的结果选出最优方案。算例验证表明，集对分析方法决策过程简单直观，用于变电站主接线综合评价具有良好的不确定性信息处理能力，从而为工作人员在评估变电站主接线时提供一定的参考和依据。 |
| 关键词: 变电站主接线 不确定性 风险理论 集对分析 综合评价 |
| DOI：10.7667/PSPC160823 |
| 投稿时间：2016-03-31修订日期：2016-08-25 |
| 基金项目:广东电网有限责任公司电力调度控制中心科技项目资助 |
|
| Comprehensive evaluation of substation main connection based on set pair analysis and risk theory |
| LI Ran,LI Yongbin,ZHAI Chenxi,LÜ Ziyu,DUAN Qingang |
| (State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Baoding 071003, China;Power Dispatch Control Centre of Guangdong Power Grid Corp.Ltd., Guangzhou 510600, China) |
| Abstract: |
| The new publishment of the Rule No. 599 puts more emphasis on the importance of customers to the power grid, so it is necessary to assess the risk of load-shedding from the perspective of power grid in the assessment and selection of main connection. Aiming at the uncertainty information in the evaluation process of substation main connection, this paper presents a comprehensive evaluation method of substation main connection based on set pair analysis and risk theory. The method evaluates the risk of substation main connection from the perspective of network layer firstly, and its results are used as the reliability evaluation indices of substation main connection. Then the weight coefficients of evaluation indices are obtained by improved entropy weight method, meanwhile, the uncertainty analysis is carried out by set pair analysis. Finally, the optimal scheme is selected by integrating the results of first and second order. Numerical examples show that the process of set pair analysis method is simple and intuitive. When used in substation main connection comprehensive evaluation, set pair analysis method is capable of processing uncertainty information easily, therefore it can provide some reference and basis for designers to select the substation main connection. This work is supported by Power Dispatch Control Centre of Guangdong Power Grid Corp. Ltd. |
| Key words: substation main connection uncertainty risk theory set pair analysis comprehensive evaluation |
