中国电力 ›› 2021, Vol. 54 ›› Issue (9): 156-164.DOI: 10.11930/j.issn.1004-9649.202005112

• 新能源 • 上一篇    下一篇

考虑可再生能源消纳责任的售电公司购电决策分析

戴尚文1, 张利1, 刘宁宁1, 杨明1, 刘畅2, 曹胜楠2   

  1. 1. 电网智能化调度与控制教育部重点实验室(山东大学),山东 济南 250061;
    2. 国网山东省电力公司营销服务中心(计量中心),山东 济南 250001
  • 收稿日期:2020-05-14 修回日期:2020-06-18 发布日期:2021-09-14
  • 作者简介:戴尚文(1996-),男,硕士研究生,从事电力市场研究,E-mail:dai1078566844@163.com;张利(1967-),女,通信作者,博士,副教授,硕士生导师,从事电力市场、电网经济运行技术研究,E-mail:yzhangli@sdu.edu.cn;刘宁宁(1985-),男,硕士,助理实验师,从事电力市场、继电保护技术研究,E-mail:liuningning@sdu.edu.cn;杨明(1980-),男,博士,教授,博士生导师,从事新能源预测与调度应用技术研究,E-mail:myang@sdu.edu.cn
  • 基金资助:
    国网山东省电力公司科技项目(SGSDYX00DFJS2100104)

Energy Purchasing Strategy of Electricity Retailer Considering the Responsibility of Renewable Energy Consumption

DAI Shangwen1, ZHANG Li1, LIU Ningning1, YANG Ming1, LIU Chang2, CAO Shengnan2   

  1. 1. Key Laboratory of Power System Intelligent Dispatch and Control of Ministry of Education (Shandong University), Jinan 250061, China;
    2. Marketing Service Center (Metrology Center), State Grid Shandong Electric Power Company, Jinan 250001, China
  • Received:2020-05-14 Revised:2020-06-18 Published:2021-09-14
  • Supported by:
    This work is supported by Science and Technology Project of State Grid Shandong Electric Power Company (No.SGSDYX00DFJS2100104)

摘要: 作为电力交易的主要参与者之一,售电公司须积极承担消纳可再生能源的责任。为分析可再生能源消纳责任考核对售电公司的影响,建立购电组合投资模型。模型采用场景法描述现货电价、可再生能源出力等因素的不确定性,以考虑条件风险价值的交易成本最小化为目标制定售电公司最优购电策略,并引入消纳责任考核的惩罚机制,实现对考核力度作用的评估。模型采用MATLAB中YALMIP工具箱进行线性规划的求解。采用算例仿真分析风险偏好程度、消纳责任指标、可再生能源预测准确度、监管部门惩罚力度等因素对售电公司最优购电策略的影响,验证了模型的有效性。

关键词: 购电决策, 可再生能源配额制, 消纳责任, 售电公司, 绿色证书

Abstract: As one of the major players in electricity trading, the electricity retailer should actively undertake the responsibility of consuming renewable energy. To analyze the influence of the renewable portfolio standard (RPS) on electricity retailers, this paper constructed a new portfolio investment model of energy purchasing. Scenario analysis is performed to describe the uncertainty about the spot price and renewable energy output in electricity markets. The optimal energy purchasing strategy is developed with the minimum transaction cost based on the conditional value-at-risk (CVaR) as the goal, and the punishment mechanism for consumption responsibility examination is introduced to evaluate different examination criteria. The YALMIP toolbox in MATLAB is adopted to solve linear programming in this model. In addition, the influence of risk preference, RPS quotas, renewable-energy forecast accuracy, and the degrees of penalties from regulatory authorities on the optimal energy purchasing strategy of electricity retailers is analyzed by simulation. The results show that the proposed model is effective.

Key words: energy purchasing strategy, renewable portfolio standard, consumption responsibility, electricity retailer, green certificates