基于均衡主成分分析的智能配电网环境效益综合评价方法

发布时间：2018-08-01 18:13

【摘要】：智能配电网(smart distribution network,SDN)是未来配电系统发展的重要方向,如何对其环境效益进行科学评估是SDN规划决策中面临的一项重要问题。为此,提出了一种针对SDN环境效益的综合评估模型。首先,通过深入分析SDN清洁性的形成机理,基于全生命周期理论,提炼并设计了涵盖能源消耗、污染排放、资源利用及生态协调等4方面在内的SDN环境效益评估指标体系,其中特别计及了SDN因促进电能替代及资源节约而间接产生的环境贡献。在此基础上,根据环境评价特点,进一步提出了均衡-主成分二阶段组合评价模型。其中,第1阶段运用多属性均衡分析对规划方案进行初筛,通过设计基于标准化相对距离模型的显著性判据,实现对方案之间支配关系的定量辨别;第2阶段通过构建主成分因子,在去除数据相关性影响的条件下,对方案环境效益的综合评价。算例应用表明,所提模型无需依赖评价者的主观经验,能够在最大降低总体计算工作量的前提下实现对SDN综合环境效益的高效客观评估。相关结果可为电网企业完善SDN建设规划和趋优运营提供有益参考。
[Abstract]:Intelligent distribution network (smart distribution) is an important direction of distribution system development in the future. How to evaluate its environmental benefits scientifically is an important problem in SDN planning and decision-making. Therefore, a comprehensive evaluation model for SDN environmental benefits is proposed. Firstly, through in-depth analysis of the formation mechanism of SDN cleanliness, based on the whole life cycle theory, this paper abstracts and designs the SDN environmental benefit evaluation index system, which includes four aspects: energy consumption, pollution emission, resource utilization and ecological coordination. Special consideration is given to SDN's indirect environmental contribution to power substitution and resource conservation. On this basis, according to the characteristics of environmental assessment, a balanced-principal component two-stage combined evaluation model is proposed. In the first stage, the multi-attribute equilibrium analysis is used to screen the planning scheme, and the criterion of significance based on the standardized relative distance model is designed to realize the quantitative discrimination of the dominating relationship between the schemes. In the second stage, by constructing the principal component factor, the comprehensive evaluation of the environmental benefit of the scheme is carried out under the condition of removing the influence of data correlation. The application of an example shows that the proposed model can achieve the objective and efficient evaluation of SDN comprehensive environmental benefits without relying on the subjective experience of the evaluators. The relevant results can provide a useful reference for power grid enterprises to improve SDN construction planning and optimal operation.
【作者单位】：新能源电力系统国家重点实验室(华北电力大学);中国电力科学研究院;
【基金】：国家自然科学基金项目(51507061) 中央高校基本科研业务费专项基金(2015QN01) 国家电网公司科技项目(521820140017)~~
【分类号】：TM76

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