发电技术 ›› 2025, Vol. 46 ›› Issue (2): 399-408.DOI: 10.12096/j.2096-4528.pgt.23142

• 新型电力系统 • 上一篇    

基于改进云模型的区域电网电能替代综合效益评价

郑杨1, 任禹丞2, 王雨薇1, 徐丁吉1, 杨慧敏3   

  1. 1.国网江苏省电力有限公司镇江供电分公司,江苏省 镇江市 212002
    2.国网江苏省电力有限公司,江苏省 南京市 210019
    3.东南大学电气工程学院,江苏省 南京市 210096
  • 收稿日期:2024-03-07 修回日期:2024-05-10 出版日期:2025-04-30 发布日期:2025-04-23
  • 作者简介:郑杨(1982),男,硕士,高级经济师,研究方向为电力需求侧管理、节能减碳、新能源发展应用,9249526@qq.com
    王雨薇(1993),女,硕士,工程师,研究方向为综合能源技术,本文通信作者,15262967080@163.com
    杨慧敏(1998),女,硕士,助理工程师,研究方向为低压配网、负荷辨识,1456629706@qq.com
  • 基金资助:
    国家自然科学基金项目(62293500);国家电网有限公司科技项目(5400-202318574A-3-2-ZN)

Evaluation of Comprehensive Benefits of Electric Energy Substitution in Regional Power Grids Based on Improved Cloud Model

Yang ZHENG1, Yucheng REN2, Yuwei WANG1, Dingji XU1, Huimin YANG3   

  1. 1.Zhenjiang Power Supply Branch, State Grid Jiangsu Electric Power Company Limited, Zhenjiang 212002, Jiangsu Province, China
    2.State Grid Jiangsu Electric Power Company Limited, Nanjing 210019, Jiangsu Province, China
    3.School of Electrical Engineering, Southeast University, Nanjing 210096, Jiangsu Province, China
  • Received:2024-03-07 Revised:2024-05-10 Published:2025-04-30 Online:2025-04-23
  • Supported by:
    National Natural Science Foundation of China(62293500);Science and Technology Project of State Grid Corporation of China(5400-202318574A-3-2-ZN)

摘要:

目的 针对区域电网电能替代效益评估中多维度协同性不足、环境效益量化不完善及动态反馈缺失等问题,提出一种多源数据融合的动态评价方法,以提升电能替代工程决策精度。 方法 构建涵盖“供给侧优化-需求侧转型-环境减排协同”的三维评价指标体系,明确跨区消纳能力、电替代渗透率及污染物减排等21个指标,形成多层级量化评估框架;设计基于熵权法与改进序关系法的耦合赋权策略,通过线性加权平衡主客观权重偏差;提出贝叶斯动态云模型,结合贝叶斯反馈机制优化云模型超熵参数,实现评估结果的动态修正。 结果 所提模型能有效量化电能替代综合效益,精准识别跨区消纳与终端替代短板,并通过动态反馈机制提升评估精准性,增强与工程实际的匹配度。 结论 该评估方法突破了传统效益评估中指标维度单一、权重分配失准及静态偏差显著等瓶颈,可为提高电能替代效益评价准确性提供参考。

关键词: 新型电力系统, 新能源, 低碳转型, 碳中和, 区域电网, 电能替代, 贝叶斯动态云模型, 综合效益评价, 碳排放

Abstract:

Objectives To address issues such as insufficient multi-dimensional coordination, incomplete quantification of environmental benefits, and the lack of dynamic feedback in evaluating the benefits of electric energy substitution in regional power grids, a dynamic evaluation method based on multi-source data fusion is proposed to enhance the decision-making accuracy of electric energy substitution projects. Methods A three-dimensional evaluation index system covering “supply-side optimization, demand-side transformation, and environmental emission reduction synergy” is established, identifying 21 indicators including cross-regional consumption capacity, electric substitution penetration rate, and pollutant reduction, thereby forming a multi-level quantitative evaluation framework. A coupling weighting strategy based on the entropy weight method and an improved rank correlation method is developed to balance subjective and objective weight deviations through linear weighting. A Bayesian dynamic cloud model is proposed, optimizing the hyper-entropy parameters of the cloud model by incorporating a Bayesian feedback mechanism to achieve dynamic correction of evaluation results. Results The proposed model can effectively quantify the comprehensive benefits of electric energy substitution, accurately identify shortcomings in cross-regional consumption and terminal substitution, and improve evaluation accuracy through the dynamic feedback mechanism, enhancing alignment with practical engineering. Conclusions This evaluation method overcomes the bottlenecks in traditional benefit evaluation, such as single-dimensional indicators, inaccurate weight allocation, and significant static deviations, providing a reference for improving the accuracy of electric energy substitution benefit evaluation.

Key words: new power system, new energy, low-carbon transition, carbon neutrality, regional power grid, electric energy substitution, Bayesian dynamic cloud model, comprehensive benefit evaluation, carbon emission

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