To enable wind turbine generators to possess functions such as voltage support and primary frequency regulation similar to those of synchronous generators
taking a 2 MW direct-drive wind turbine generator as the research object
a scheme was proposed to construct a grid-forming wind-storage integrated unit by configuring energy storage on direct current (DC) side. A virtual synchronous control structure and an active support strategy involving the coordinated operation of the machine-side
grid-side
and energy storage converter
were presented through this scheme. The favorable effects of this approach under various scenarios were verified through hardware-in-the-loop simulation
and its practical implementation was demonstrated in engineering projects for primary frequency regulation and reactive power voltage regulation. The oscillation issues from the interactive effects of wind power fluctuations and variations in the internal grid intensity of the wind farm were also explained. Results indicate that when the wind turbine detects changes in grid frequency and voltage
this strategy can provide the function of frequency and voltage support by drawing an analogy with rotor motion equations of synchronous generators. The wind turbine can autonomously and synchronously respond with active and reactive power
making it more suitable for operation in weak power grid. The grid-forming wind-storage integrated unit based on virtual synchronous control exhibits capabilities of primary frequency regulation and reactive power support
effectively enhancing the inertia support response rate of wind turbine and support capacity for weak power grid.
关键词
Keywords
references
李政, 张东杰, 潘玲颖, 等. "双碳"目标下我国能源低碳转型路径及建议[J]. 动力工程学报, 2021, 41(11): 905-909, 971. LI Zheng, ZHANG Dongjie, PAN Lingying, et al. Low-carbon transition of China's energy sector and suggestions with the 'carbon-peak and carbon-neutrality' target[J]. Journal of Chinese Society of Power Engineering, 2021, 41(11): 905-909, 971.
王伟, 周少泽, 黄萌, 等. 构网型技术: 演进历程、功能定位与应用展望[J]. 电力系统自动化, 2025, 49(1): 1-13. WANG Wei, ZHOU Shaoze, HUANG Meng, et al. Grid-forming technologies: evolution history, function, and application prospects[J]. Automation of Electric Power Systems, 2025, 49(1): 1-13.
王祺, 张泽轲, 郭杰帅, 等. 新型电力系统主动构网机理与技术路径[J]. 中国电机工程学报, 2024, 44(2): 504-516. WANG Qi, ZHANG Zeke, GUO Jieshuai, et al. Mechanism and technical path of active grid-forming of new type power system[J]. Proceedings of the CSEE, 2024, 44(2): 504-516.
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.
刘辉, 于思奇, 孙大卫, 等. 构网型变流器控制技术及原理综述[J]. 中国电机工程学报, 2025, 45(1): 277-296. LIU Hui, YU Siqi, SUN Dawei, et al. An overview of control technologies and principles for grid-forming converters[J]. Proceedings of the CSEE, 2025, 45(1): 277-296.
詹长江, 吴恒, 王雄飞, 等. 构网型变流器稳定性研究综述[J]. 中国电机工程学报, 2023, 43(6): 2339-2358. ZHAN Changjiang, WU Heng, WANG Xiongfei, et al. An overview of stability studies of grid-forming voltage source converters[J]. Proceedings of the CSEE, 2023, 43(6): 2339-2358.
许诘翊, 刘威, 刘树, 等. 电力系统变流器构网控制技术的现状与发展趋势[J]. 电网技术, 2022, 46(9): 3586-3594. XU Jieyi, LIU Wei, LIU Shu, et al. Current state and development trends of power system converter grid-forming control technology[J]. Power System Technology, 2022, 46(9): 3586-3594.
ZHONG Qingchang, NGUYEN P L, MA Zhenyu, et al. Self-synchronized synchronverters: inverters without a dedicated synchronization unit[J]. IEEE Transactions on Power Electronics, 2014, 29(2): 617-630.
张琛, 蔡旭, 李征. 具有自主电网同步与弱网稳定运行能力的双馈风电机组控制方法[J]. 中国电机工程学报, 2017, 37(2): 476-485. ZHANG Chen, CAI Xu, LI Zheng. Control of DFIG-based wind turbines with the capability of automatic grid-synchronization and stable operation under weak grid condition[J]. Proceedings of the CSEE, 2017, 37(2): 476-485.
史亚帆, 许寅, 吴翔宇, 等. 面向构网逆变器的虚拟振荡器控制技术: 统一设计框架与关键问题探讨[J]. 电网技术, 2024, 48(6): 2251-2261. SHI Yafan, XU Yin, WU Xiangyu, et al. Virtual oscillator control for grid forming inverters: unified design framework and discussion for key issues[J]. Power System Technology, 2024, 48(6): 2251-2261.
唐坚, 唐庆宏, 姚禹歌, 等. 风电调频能力的潜力分析[J]. 动力工程学报, 2022, 42(11): 1138-1145. TANG Jian, TANG Qinghong, YAO Yuge, et al. Potential analysis of frequency regulation ability of wind power in the view of energy[J]. Journal of Chinese Society of Power Engineering, 2022, 42(11): 1138-1145.
魏林君, 叶华, 迟永宁. 基于状态重构的构网型风机与储能系统联合频率支撑控制策略[J]. 高电压技术, 2023, 49(12): 5095-5104. WEI Linjun, YE Hua, CHI Yongning. Frequency response coordinated control strategy between grid-forming wind turbine and energy storage based on state reconstruction[J]. High Voltage Engineering, 2023, 49(12): 5095-5104.
桑顺, 齐琛, 苗风麟, 等. 附加储能的直驱型风电机组的构网型控制与小信号稳定性分析[J]. 电网技术, 2025, 49(5): 1878-1886. SANG Shun, QI Chen, MIAO Fenglin, et al. Grid-forming control and small-signal stability analysis of the direct-driven wind turbine with energy storage[J]. Power System Technology, 2025, 49(5): 1878-1886.
王东泽, 孙海顺, 黄碧月, 等. 基于虚拟同步控制的电压源型直驱风电机组并网稳定性分析[J]. 高电压技术, 2022, 48(8): 3282-3294. WANG Dongze, SUN Haishun, HUANG Biyue, et al. Analysis of grid-connected stability of voltage-source-type PMSG-based wind turbine based on virtual synchronous control[J]. High Voltage Engineering, 2022, 48(8): 3282-3294.
金铭鑫, 王彤, 黄世楼, 等. 含储能型虚拟同步发电机的直驱风机并网系统自适应协调阻尼控制策略[J]. 电力自动化设备, 2021, 41(10): 170-177, 191. JIN Mingxin, WANG Tong, HUANG Shilou, et al. Adaptive coordinated damping control strategy for grid-connected direct-driven wind turbine system with energy storage-based virtual synchronous generators[J]. Electric Power Automation Equipment, 2021, 41(10): 170-177, 191.
王冠淇, 裴玮, 熊佳旺, 等. 新能源场站跟网/构网变流器协同控制策略综述[J]. 高电压技术, 2025, 51(2): 793-805. WANG Guanqi, PEI Wei, XIONG Jiawang, et al. Review of coordinated control strategies for renewable energy station with grid-following and grid-forming inverters[J]. High Voltage Engineering, 2025, 51(2): 793-805.
葛俊, 宋鹏, 刘汉民, 等. 新能源场站虚拟同步发电机技术研究及示范应用[J]. 全球能源互联网, 2018, 1(1): 39-47. GE Jun, SONG Peng, LIU Hanmin, et al. Research and demonstration application of virtual synchronous generator technology in renewable energy power station[J]. Journal of Global Energy Interconnection, 2018, 1(1): 39-47.
赵靓, 武彩霞. 2024年上半年我国风电技术发展趋势[J]. 风能, 2024(7): 38-41. ZHAO Liang, WU Caixia. The development trend of China's wind power technology in the first half year of 2024[J]. Wind Energy, 2024(7): 38-41.
王玉坤, 张慕婕, 李壮, 等. 构网型直驱风电机组间控制相互作用研究[J]. 电力自动化设备, 2024, 44(3): 82-90. WANG Yukun, ZHANG Mujie, LI Zhuang, et al. Research on control interaction between grid forming direct-drive wind turbines[J]. Electric Power Automation Equipment, 2024, 44(3): 82-90.
王子骏, 庄可好, 辛焕海, 等. 虚拟同步直驱风机低频振荡机理分析及阻尼补偿控制[J]. 电力系统自动化, 2024, 48(2): 95-104. WANG Zijun, ZHUANG Kehao, XIN Huanhai, et al. Low-frequency oscillation mechanism analysis and damping compensation control of virtual synchronous direct-driven wind turbine generators[J]. Automation of Electric Power Systems, 2024, 48(2): 95-104.
曹炜, 钦焕乘, 陆建忠, 等. 新型电力系统下虚拟同步机的定位和应用前景展望[J]. 电力系统自动化, 2023, 47(4): 190-207. CAO Wei, QIN Huancheng, LU Jianzhong, et al. Orientation and application prospect of virtual synchronous generator in new power system[J]. Automation of Electric Power Systems, 2023, 47(4): 190-207.
MALINOWSKI M, KAZMIERKOWSKI M P, HANSEN S, et al. Virtual-flux-based direct power control of three-phase PWM rectifiers[J]. IEEE Transactions on Industry Applications, 2001, 37(4): 1019-1027.
秦世耀, 齐琛, 李少林, 等. 电压源型构网风电机组研究现状及展望[J]. 中国电机工程学报, 2023, 43(4): 1314-1333. QIN Shiyao, QI Chen, LI Shaolin, et al. Review of the voltage-source grid forming wind turbine[J]. Proceedings of the CSEE, 2023, 43(4): 1314-1333.
李想, 刘克天, 李军, 等. 基于风电机组转子动能的风电场一次调频功率分配优化[J]. 动力工程学报, 2023, 43(9): 1238-1246. LI Xiang, LIU Ketian, LI Jun, et al. Optimization of power distribution for primary frequency regulation of wind farm based on rotor kinetic energy of wind turbines[J]. Journal of Chinese Society of Power Engineering, 2023, 43(9): 1238-1246.