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1.新能源电力系统国家重点实验室(华北电力大学),河北省保定市 071000
2.国电南京自动化股份有限公司,江苏省南京市 211100
Received:12 March 2023,
Revised:2023-08-03,
Published Online:15 September 2023,
Published:25 October 2023
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李君卫,余洋,蒋衍君等.面向电网调峰的负荷友好性评价[J].电力系统自动化,2023,47(20):115-124.
LI Junwei,YU Yang,JIANG Yanjun,et al.Load Friendliness Evaluation for Peak Regulation of Power Grid[J].Automation of Electric Power Systems,2023,47(20):115-124.
李君卫,余洋,蒋衍君等.面向电网调峰的负荷友好性评价[J].电力系统自动化,2023,47(20):115-124. DOI: 10.7500/AEPS20230312003.
LI Junwei,YU Yang,JIANG Yanjun,et al.Load Friendliness Evaluation for Peak Regulation of Power Grid[J].Automation of Electric Power Systems,2023,47(20):115-124. DOI: 10.7500/AEPS20230312003.
为合理评价新型电力系统中需求侧负荷对净负荷峰谷特性影响的优劣,提出面向电网调峰的负荷友好性评价思路。首先,分析了新型电力系统中净负荷特性,针对峰谷调节困难的需求,提出友好负荷的概念,并基于此提取负荷的友好性特征;其次,为客观核定特征指标的重要性,提出基于特征指标对评价目标贡献的赋权思想;再次,针对特征参数的随机性,构建指标云模型计算评价目标的隶属度,确定指标贡献权重。同时,为避免异常特征值影响云模型分布,提出了异常值折算方法。最后,选取中国某区域的负荷聚合商作为评价对象,验证了所提评价思想的合理性及所提评价方法的有效性。
In order to reasonably evaluate the impact of demand-side loads on the peak and valley characteristics of net loads in the new power system
the idea of load friendliness evaluation for peak regulation of power grids is proposed. Firstly
the net load characteristics of the new power system are analyzed
and the concept of friendly loads is put forward for the demand of difficult peak-valley regulation. On this basis
the features of load friendliness are extracted. Secondly
in order to measure the importance of feature indicators objectively
the weighting idea based on the contribution of feature indicators to the evaluation targets is put forward. Thirdly
according to the randomness of the feature parameters
the cloud model of indicators is constructed to calculate the membership degree of the evaluation targets and to determine the contribution weights of indicators. Meanwhile
in order to avoid the influence of abnormal features on the distribution of cloud model
an abnormal conversion method is proposed. Finally
the load aggregators in a certain region of China are selected as the evaluation objects to verify the rationality of the proposed evaluation idea and the effectiveness of the proposed evaluation method.
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