新能源并网多电气约束有功受限机理与弱电网下满额运行条件

doi:10.16183/j.cnki.jsjtu.2024.142

上海交通大学学报 ›› 2026, Vol. 60 ›› Issue (1): 19-31.doi: 10.16183/j.cnki.jsjtu.2024.142

• 新型电力系统与综合能源 • 上一篇下一篇

新能源并网多电气约束有功受限机理与弱电网下满额运行条件

张宇¹, 张琛¹(), 刘辉², 于思奇², 吴林林², 蔡旭¹

¹ 上海交通大学电气工程学院, 上海 200240
² 国网冀北电力有限公司电力科学研究院(华北电力科学研究院有限责任公司), 北京 100045

收稿日期:2024-04-24 修回日期:2024-06-25 接受日期:2024-07-29 出版日期:2026-01-28 发布日期:2025-02-26
通讯作者: 张琛 E-mail:nealbc@sjtu.edu.cn.
作者简介:张宇(1996—),博士生,从事大规模新能源并网稳定性研究.
基金资助:
国网总部科技项目(52010122004Q)

Mechanism of Power Transfer Limit Under Multiple Electrical Constraints for Grid-Connected New Energy Units and Full-Power Operation Conditions in Weak Grids

ZHANG Yu¹, ZHANG Chen¹(), LIU Hui², YU Siqi², WU Linlin², CAI Xu¹

¹ School of Electrical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
² Electric Power Research Institute of State Grid Jibei Electric Power Co., Ltd. (North China Electric Power Research Institution Co., Ltd.), Beijing 100045, China

Received:2024-04-24 Revised:2024-06-25 Accepted:2024-07-29 Online:2026-01-28 Published:2025-02-26
Contact: ZHANG Chen E-mail:nealbc@sjtu.edu.cn.

摘要/Abstract

摘要：

针对新能源机组在弱电网下的有功传输极限问题,当前研究尚未提出能考虑最大稳态运行电流约束、并网点电压幅值范围约束等新能源多电气约束的解析分析方法.首先,基于电气量等值线刻画新能源变换器在多电气约束下的静态电压可行域,推导多电气约束下有功传输极限的解析表达式;其次,分析新能源机组在弱电网中的有功传输受限机理,探讨多种参数及无功-电压控制静态特性对有功传输的影响;再次,针对在弱电网中保证额定范围内送出功率的要求,研究确保变换器正常运行的最小参数需求,推导满足多电气约束的无功-电压下垂系数边界范围;最后,通过PSCAD/EMTDC仿真软件在电网短路比为1.05的极弱电网下对所提理论方法进行了全面验证.

关键词: 新能源, 并网变换器, 静态电压可行域, 弱电网, 有功传输极限, 多电气约束

Abstract:

To address the issue of active power transfer limits for new energy units in weak grids, current research lacks analytical methods that consider multiple electrical constraints of new energy systems, including constraints such as maximum steady-state operating current and the voltage variation range at the grid connection point. To this end, the static voltage feasible region of new energy converters under multiple electrical constraints based on electrical isoclines is characterized, and analytical expressions for the power transfer limit under these constraints are derived accordingly. Then, the mechanism of active power transfer limitation for new energy units in weak power grids is analyzed, and the impact of various parameters and the static characteristics of Q-V control on active power transfer is studied. Next, to satisfy the requirement of operate delivering power in weak girds within the rated range, the minimum parameter requirements to ensure normal operation of converters are investigated, and the boundary range of the Q-V droop coefficient that satisfies multiple electrical constraints is derived. Finally, the proposed theoretical method is comprehensively validated through PSCAD/EMTDC simulations under an ultra-weak power grid with a short-circuit ratio of 1.05.

Key words: new energy, grid-connected converter (GCC), static voltage feasible region, weak grid, power transfer limit, multiple electrical constrains

中图分类号:

TM712

张宇, 张琛, 刘辉, 于思奇, 吴林林, 蔡旭. 新能源并网多电气约束有功受限机理与弱电网下满额运行条件[J]. 上海交通大学学报, 2026, 60(1): 19-31.

ZHANG Yu, ZHANG Chen, LIU Hui, YU Siqi, WU Linlin, CAI Xu. Mechanism of Power Transfer Limit Under Multiple Electrical Constraints for Grid-Connected New Energy Units and Full-Power Operation Conditions in Weak Grids[J]. Journal of Shanghai Jiao Tong University, 2026, 60(1): 19-31.

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参考文献 18

[1]	国家能源局. 新型电力系统发展蓝皮书[R]. 北京: 中国电力出版社, 2023.
	National Energy Administration. Blue book on the development of new power systems[R]. Beijing: China Electric Power Press, 2023.
[2]	谢小荣, 贺静波, 毛航银, 等. “双高” 电力系统稳定性的新问题及分类探讨[J]. 中国电机工程学报, 2021, 41(2): 461-474.
	XIE Xiaorong, HE Jingbo, MAO Hangyin, et al. New issues and classification of power system stability with high shares of renewables and power electronics[J]. Proceedings of the CSEE, 2021, 41(2): 461-474.
[3]	孙华东, 徐式蕴, 许涛, 等. 新能源多场站短路比定义及指标[J]. 中国电机工程学报, 2021, 41(2): 497-505.
	SUN Huadong, XU Shiyun, XU Tao, et al. Definition and index of short circuit ratio for multiple renewable energy stations[J]. Proceedings of the CSEE, 2021, 41(2): 497-505.
[4]	习工伟, 赵兵, 郑帅飞, 等. 新能源基地经特高压交流送出系统输电能力与提升措施[J]. 电力建设, 2022, 43(7): 131-138. doi: 10.12204/j.issn.1000-7229.2022.07.015
	XI Gongwei, ZHAO Bing, ZHENG Shuaifei, et al. Transmission capacity and improvement measures of the UHVAC sending system from new energy base[J]. Electric Power Construction, 2022, 43(7): 131-138. doi: 10.12204/j.issn.1000-7229.2022.07.015
[5]	迟永宁. 大型风电场接入电网的稳定性问题研究[D]. 北京: 中国电力科学研究院, 2006.
	CHI Yongning. Study on stability of large wind farms connected to power grid[D]. Beijing: China Electric Power Research Institute, 2006.
[6]	黄云辉, 周翩, 王龙飞. 弱电网下基于矢量控制的并网变换器功率控制稳定性[J]. 电力系统自动化, 2016, 40(14): 93-99.
	HUANG Yunhui, ZHOU Pian, WANG Longfei. Power control stability in vector control based voltage source converters connected to weak grid[J]. Automation of Electric Power Systems, 2016, 40(14): 93-99.
[7]	吴广禄, 周孝信, 李亚楼, 等. 弱交流电网条件下VSC-HVDC改进矢量控制方法[J]. 中国电机工程学报, 2017, 37(16): 4577-4590.
	WU Guanglu, ZHOU Xiaoxin, LI Yalou, et al. Improved vector control for VSC-HVDC connected to weak AC grids[J]. Proceedings of the CSEE, 2017, 37(16): 4577-4590.
[8]	康勇, 林新春, 郑云, 等. 新能源并网变换器单机无穷大系统的静态稳定极限及静态稳定工作区[J]. 中国电机工程学报, 2020, 40(14): 4506-4515.
	KANG Yong, LIN Xinchun, ZHENG Yun, et al. The static stable-limit and static stable-working zone for single-machine infinite-bus system of renewable-energy grid-connected converter[J]. Proceedings of the CSEE, 2020, 40(14): 4506-4515.
[9]	康勇, 林新春, 潘辰, 等. 弱电网下采用SVC与SVG补偿后新能源并网变换器的功率传输特性分析[J]. 中国电机工程学报, 2021, 41(6): 2115-2124.
	KANG Yong, LIN Xinchun, PAN Chen, et al. Analysis of power transmission characteristics of renewable energy grid-connected converter considering SVC and SVG compensation under weak grid condition[J]. Proceedings of the CSEE, 2021, 41(6): 2115-2124.
[10]	万易, 王建, 南东亮, 等. 基于变流器并网的新能源外送系统功率传输能力评估[J]. 电网技术, 2024, 48(1): 171-183.
	WAN Yi, WANG Jian, NAN Dongliang, et al. Power transfer capacity evaluation of renewable energy delivery system based on grid-connected inverter[J]. Power System Technology, 2024, 48(1): 171-183.
[11]	于彦雪, 胡鹏飞, 陈玉树, 等. 极弱电网下并网逆变器功率传输能力分析及提升方法[J]. 电力系统自动化, 2022, 46(14): 101-108.
	YU Yanxue, HU Pengfei, CHEN Yushu, et al. Analysis and improvement method of power transfer capability for grid-connected inverter in ultra-weak grid[J]. Automation of Electric Power Systems, 2022, 46(14): 101-108.
[12]	GUO X, ZHU D H, ZOU X D, et al. Analysis and enhancement of active power transfer capability for DFIG-based WTs in very weak grid[J]. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2022, 10(4): 3895-3906. doi: 10.1109/JESTPE.2021.3089235 URL
[13]	叶伟豪, 郭强, 赵兵, 等. 新能源并网换流器功率控制稳定机理分析及改进控制策略[J]. 高电压技术, 2024, 50(8): 3736-3744.
	YE Weihao, GUO Qiang, ZHAO Bing, et al. Mechanism analysis and improved strategy of power control stability of renewable energy grid-connected converters[J]. High Voltage Engineering, 2024, 50(8): 3736-3744.
[14]	ZHANG Z R, XU Z, JIANG W, et al. Operating area for modular multilevel converter based high-voltage direct current systems[J]. IET Renewable Power Generation, 2016, 10(6): 776-787. doi: 10.1049/rpg2.v10.6 URL
[15]	HAO Q R, LI B W, SUN Y F, et al. Operating region and boundary control of modular multilevel converter station under unbalanced grid conditions[J]. IEEE Transactions on Power Delivery, 2020, 35(3): 1146-1157. doi: 10.1109/TPWRD.61 URL
[16]	王语阳, 张琛, 张宇, 等. 提升弱网有功稳定输出能力的光伏逆变器Q-V下垂系数在线调整方法[J]. 上海交通大学学报, 2025, 59(6): 845-856. doi: 10.16183/j.cnki.jsjtu.2023.353
	WANG Yuyang, ZHANG Chen, ZHANG Yu, et al. Reactive power-voltage droop gain online tuning method of photovoltaic inverters for improvement of stable output power capability in weak grids[J]. Journal of Shanghai Jiao Tong University, 2025, 59(6): 845-856.
[17]	中国电力科学研究院有限公司. 风电场接入电力系统技术规定——第1部分.陆上风电:GB/T19963.1—2021[S]. 北京: 中国电力企业联合会, 2021.
	China Electric Power Research Institute. Technicalspecificationforconnectingwindfarmtopowersystem—Part1.Onshorewindpower:GB/T19963.1—2021[S]. Beijing: China Electricity Council, 2021.
[18]	张宇, 张琛, 蔡旭, 等. 虚拟同步机电流受限暂态电压支撑机理与改进故障穿越控制研究[J]. 中国电机工程学报, 2024, 44(15): 5996-6009.
	ZHANG Yu, ZHANG Chen, CAI Xu, et al. Current-constrained transient voltage response analysis and an improved fault-ride through control of the virtual synchronous generator[J]. Proceedings of the CSEE, 2024, 44(15): 5996-6009.

I_lim	r_SC,min(ΔU_s= 5%)	r_SC,min(ΔU_s= 10%)
1.0	3.23	2.44
1.1	1.18	1.06
1.2	1.01	0.95

新能源并网多电气约束有功受限机理与弱电网下满额运行条件

Mechanism of Power Transfer Limit Under Multiple Electrical Constraints for Grid-Connected New Energy Units and Full-Power Operation Conditions in Weak Grids

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