分散式风储系统频率和电压调节能力评估关键技术

doi:10.3969/j.issn.2097-0706.2024.06.009

综合智慧能源 ›› 2024, Vol. 46 ›› Issue (6): 78-87.doi: 10.3969/j.issn.2097-0706.2024.06.009

分散式风储系统频率和电压调节能力评估关键技术

赵长伟¹(), 王慧², 顾志成³^,^*(), 刘绪斌⁴, 朱光明⁵, 葛磊蛟³

1.国网天津市电力公司城东供电分公司，天津 300250
2.中国能源建设集团天津电力设计院有限公司，天津 300400
3.天津大学电气自动化与信息工程学院，天津 300072
4.中南大学自动化学院，长沙 410012
5.国网湖南省电力有限公司电力科学研究院，长沙 410007

收稿日期:2023-11-21 修回日期:2024-01-10 出版日期:2024-06-25
通讯作者: *顾志成（1998），男，硕士生，从事新能源规划等方面的研究，guzc163@163.com。
作者简介:赵长伟（1982），男，高级工程师，从事配电网规划、新能源发展等方面的工作，chengdongface@163.com
基金资助:
国家电网有限公司科技项目(5100-202323430A-3-2-ZN)

Key technologies of the evaluation on distributed wind-storage systems' frequency and voltage regulation capacities

ZHAO Changwei¹(), WANG Hui², GU Zhicheng³^,^*(), LIU Xubin⁴, ZHU Guangming⁵, GE Leijiao³

1. Chengdong Power Supply Branch of State Grid Tianjin Electric Power Company，Tianjin 300250，China
2. China Energy Engineering Group Tianjin Electric Power Design Institute Company Limited，Tianjin 300400， China
3. School of Electrical and Information Engineering，Tianjin University，Tianjin 300072， China
4. School of Automation，Central South University，Changsha 410012， China
5. State Grid Hunan Electric Power Company Limited， Electric Power Science Research Institute，Changsha 410007， China

Received:2023-11-21 Revised:2024-01-10 Published:2024-06-25
Supported by:
Science and Technology Project of State Grid Corporation of China(5100-202323430A-3-2-ZN)

摘要/Abstract

摘要：

分散式风电点多面广接入中高压配电网成为趋势，导致弱端电网的频率和电压支撑能力不足，分散式风储系统频率和电压调节能力评估有助于调度管理和及时发现避免潜在的稳定性问题，但复杂性和多变性使评估体系构建变得相当复杂。为此，从分散式风储系统频率和电压调节能力的影响因素分析、综合评估指标、综合评估方法三方面入手，分析现有技术方法，点明关键技术挑战。重点阐述包括：多时间尺度的高精度风电出力预测技术，不同条件下风储系统配置方案的调节能力差异等影响因素;在多模态因素耦合下分散式风储系统调频-调压容量裕度和贡献度指标计算方法提升;不确定性条件下评估方法的鲁棒性提升。最后针对技术难题，给出了分散式风储系统频率和电压调节能力评估新思路，以期为我国风电发展提供一些借鉴。

关键词: 分散式风储系统, 频率控制, 电压控制, 调节能力评估

Abstract:

The wide and scattered connection of wind power to medium/high voltage distribution networks is getting popular，resulting in insufficient frequency and voltage support of weak power grids. The evaluation on the frequency and voltage regulation capacities of distributed wind-storage systems is helpful for the scheduling and management of grids，detecting and avoiding potential problems that could destroy the stability of grids timely，but the construction of an evaluation system is thorny due to its complex and variable structure. To fulfill the construction， the influence factors， comprehensive evaluation indicators and comprehensive evaluation method for the systems' frequency and voltage regulation capacities have to be considered comprehensively in analyzing existing technical methods and pointing out the key techniques and challenges. The study focuses on the following contents：multi-time scale high-precision wind power output forecasting technology，adjustment capacities of different wind-storage system configuration schemes under different conditions;calculation and improvement methods of the frequency-voltage regulation capacity and contribution index of a distributed wind-storage system under multi-modal coupling condition; improvement on the robustness of evaluation method under uncertain conditions. Finally， new ideas on frequency and voltage regulation capability evaluation for distributed wind-storage systems are presented， to provide references for the development of wind power in China.

Key words: distributed wind-storage systems, frequency control, voltage control, assessment of regulation capability

中图分类号:

TK01：TM712

赵长伟, 王慧, 顾志成, 刘绪斌, 朱光明, 葛磊蛟. 分散式风储系统频率和电压调节能力评估关键技术[J]. 综合智慧能源, 2024, 46(6): 78-87.

ZHAO Changwei, WANG Hui, GU Zhicheng, LIU Xubin, ZHU Guangming, GE Leijiao. Key technologies of the evaluation on distributed wind-storage systems' frequency and voltage regulation capacities[J]. Integrated Intelligent Energy, 2024, 46(6): 78-87.

图/表 2

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分散式风储系统频率和电压调节能力评估关键技术

Key technologies of the evaluation on distributed wind-storage systems' frequency and voltage regulation capacities

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