电工技术学报  2022, Vol. 37 Issue (13): 3275-3288    DOI: 10.19595/j.cnki.1000-6753.tces.210815
电力系统与综合能源 |
计及爬坡场景覆盖的高比例新能源电网平衡策略研究
亢丽君1, 王蓓蓓1, 薛必克2, 冯树海2
1.东南大学电气工程学院 南京 210096;
2.中国电力科学研究院有限公司 南京 210003
Research on the Balance Strategy for Power Grid with High Proportion Renewable Energy Considering the Ramping Scenario Coverage
Kang Lijun1, Wang Beibei1, Xue Bike2, Feng Shuhai2
1. School of Electrical Engineering Southeast University Nanjing 210096 China;
2. China Electric Power Research Institute Nanjing 210003 China
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摘要 随着高比例新能源接入电网,系统在安全、可靠性等方面面临着新的挑战,通过改进日内平衡资源配置方案增加系统调度的运行灵活性的相关研究受到广泛关注。该文在日前既有调度方案的基础上,在日内2h尺度确定快机开停机及各类灵活性资源的出力、灵活性预留结果,并关注灵活性预留的可调度性,建立场景覆盖指数以评价该备用配置方案在实时时间尺度系统可响应量。基于此构建计及日内爬坡场景覆盖的高比例新能源电网日内平衡策略。算例结果说明该文提出的日内平衡策略由于更精确地计及了机组爬坡特性,而使得系统灵活性资源的预留具备可量测性,提高了系统的灵活性水平,减少了弃风/切负荷事件的发生概率。
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亢丽君
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冯树海
关键词 灵活性源荷互动日内优化高比例新能源    
Abstract:As a high proportion of renewable energy is connected to the power grid, the system is faced with new challenges in terms of security and reliability, and the related research on improving the intraday balanced resource allocation scheme to increase the operational flexibility of system has attracted extensive attention. Based on the existing day-ahead scheduling results, this paper focuses on the schedulability of flexibility reserve results for the intra-day 2h scale, which determines the fast-start unit startup and shutdown schedule and output and flexibility reserve results of various flexible resources, the scenario coverage index is established to evaluate the schedulability of flexible resource scheduling results at real time scale. Furthermore, a high proportion renewable energy intra-day balance scheduling model with intra-day climbing scenario coverage is constructed. The results of case study illustrate the intra-day balance strategy proposed in this paper makes the reservation of flexibility resources measurable, improves the flexibility of the system, and reduces the probability of wind curtailment/load shedding issues because it takes into account the unit's climbing characteristics more accurately.
Key wordsFlexibility    source-load interaction    intra-day scheduling    high proportion of renewable energy   
收稿日期: 2021-06-07     
PACS: TM73  
通讯作者: 王蓓蓓 女,1979 年生,副教授,博士生导师,研究方向为智能用电、需求侧管理与需求响应,电力系统运行与控制,电力市场。E-mail:wangbeibei@seu.edu.cn   
作者简介: 亢丽君 女,1998年生,硕士研究生,研究方向为电力系统灵活性、需求侧管理。E-mail:kanglj_seu@qq.com
引用本文:   
亢丽君, 王蓓蓓, 薛必克, 冯树海. 计及爬坡场景覆盖的高比例新能源电网平衡策略研究[J]. 电工技术学报, 2022, 37(13): 3275-3288. Kang Lijun, Wang Beibei, Xue Bike, Feng Shuhai. Research on the Balance Strategy for Power Grid with High Proportion Renewable Energy Considering the Ramping Scenario Coverage. Transactions of China Electrotechnical Society, 2022, 37(13): 3275-3288.
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