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1.山东理工大学电气与电子工程学院,山东省淄博市 255000
2.智能配用电装备与系统全国重点实验室(天津大学),天津市 300072
Received:27 February 2025,
Revised:2025-05-26,
Online First:21 July 2025,
Published:10 December 2025
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赵学深,彭克,郭力等.基于等效模型的多机直流微电网惯性时间常数估算方法[J].电力系统自动化,2025,49(23):77-88.
ZHAO Xueshen,PENG Ke,GUO Li,et al.Equivalent Model Based Estimation Method for Inertia Time Constants of Multi-generator DC Microgrid[J].Automation of Electric Power Systems,2025,49(23):77-88.
赵学深,彭克,郭力等.基于等效模型的多机直流微电网惯性时间常数估算方法[J].电力系统自动化,2025,49(23):77-88. DOI: 10.7500/AEPS20250227002.
ZHAO Xueshen,PENG Ke,GUO Li,et al.Equivalent Model Based Estimation Method for Inertia Time Constants of Multi-generator DC Microgrid[J].Automation of Electric Power Systems,2025,49(23):77-88. DOI: 10.7500/AEPS20250227002.
针对差异化虚拟惯性控制策略下的多机直流微电网,多台直流型虚拟同步机之间的交互作用导致系统虚拟惯量难以准确评估。为此,文中提出了计及惯量交互的等效建模方法,建立了两种典型虚拟惯性控制策略下多机直流微电网的等效惯量模型。基于此模型,推导了直流电压的时域响应解析式及惯性时间常数估算公式,并通过等效RC电路模型揭示了惯量等效的物理本质。进一步地,提出了基于惯量等效的惯性时间常数映射曲面构建方法,构建了三维惯性时间常数映射曲面,量化分析了截止频率、虚拟惯性系数、负荷功率和下垂系数等因素对多机直流微电网虚拟惯性的影响。最后,基于RT-Box硬件在环平台搭建了多机直流微电网与等效惯量模型。多组对比结果表明,理论估算与实测结果的相对误差均小于3%,验证了所提方法的有效性。
For multi-generator DC microgrids with differentiated virtual inertia control strategies
the interaction between multiple DC virtual synchronous generators (VSGs) makes it difficult to accurately estimate the system virtual inertia. Therefore
this paper proposes an equivalent modeling method considering the inertia interaction and establishes the equivalent inertia models for multi-generator DC microgrids with two typical virtual inertia control strategies. Based on this model
this paper derives the time-domain response analytical expression of DC voltage and the estimation formula for the inertia time constant. It also reveals the physical essence of inertia equivalence through an equivalent RC circuit model. Moreover
a method for constructing an inertial time constant mapping surface is proposed based on inertia equivalence. A three-dimensional inertia time constant mapping surface is constructed. A quantitative analysis is conducted on the effects of factors such as cut-off frequency
virtual inertia coefficient
load power
and droop coefficient on the virtual inertia of a multi-generator DC microgrid. Finally
a multi-generator DC microgrid and equivalent inertia model are constructed based on the RT-Box hardware-in-the-loop platform. Multiple sets of comparison results show that the relative error between the theoretical estimation and the actual measurement results is less than 3%
verifying the effectiveness of the proposed method.
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 .
吴翔宇 , 张晓红 , 尚子轩 , 等 . 基于频域阻抗网络建模分析的交直流微电网振荡问题研究 [J]. 电工技术学报 , 2024 , 39 ( 8 ): 2294 - 2310 .
WU Xiangyu , ZHANG Xiaohong , SHANG Zixuan , et al . Research on the oscillation problem of AC-DC microgrids based on frequency domain impedance network modeling and analysis [J]. Transactions of China Electrotechnical Society , 2024 , 39 ( 8 ): 2294 - 2310 .
刘宿城 , 褚勇智 , 刁吉祥 , 等 . 基于输入-状态稳定条件的直流微电网集群分布式大信号稳定性 [J]. 电工技术学报 , 2025 , 40 ( 2 ): 544 - 558 .
LIU Sucheng , CHU Yongzhi , DIAO Jixiang , et al . Distributed large signal stability based on input-to-state stability conditions for DC microgrid clusters [J]. Transactions of China Electrotechnical Society , 2025 , 40 ( 2 ): 544 - 558 .
王慧 , 赵书强 , 陈旭博 , 等 . 含类虚拟同步发电机和柔性负荷的直流微电网大信号稳定控制方法 [J]. 电工技术学报 , 2025 , 40 ( 3 ): 705 - 716 .
WANG Hui , ZHAO Shuqiang , CHEN Xubo , et al . Large signal stability control method of DC microgrid with analogous virtual synchronous generator and flexible load [J]. Transactions of China Electrotechnical Society , 2025 , 40 ( 3 ): 705 - 716 .
龚振 , 沈汉铭 , 谢小荣 , 等 . 基于虚拟同步机控制的单级式光伏并网系统强迫低频振荡分析 [J]. 电力系统自动化 , 2024 , 48 ( 16 ): 18 - 29 .
GONG Zhen , SHEN Hanming , XIE Xiaorong , et al . Analysis of forced low-frequency oscillation in single-stage grid-connected photovoltaic system based on virtual synchronous generator control [J]. Automation of Electric Power Systems , 2024 , 48 ( 16 ): 18 - 29 .
朱介北 , 朱学科 , 陈彬彬 , 等 . 基于延时补偿的新能源惯性时间常数评估方法 [J]. 电力系统自动化 , 2024 , 48 ( 8 ): 101 - 110 .
ZHU Jiebei , ZHU Xueke , CHEN Binbin , et al . Evaluation method for inertial time constant of renewable energy based on delay compensation [J]. Automation of Electric Power Systems , 2024 , 48 ( 8 ): 101 - 110 .
韩平平 , 陈鹏飞 , 丁明 , 等 . VSG控制下直驱风机惯量支撑能力定量分析 [J/OL]. 电网技术 [ 2025-02-27 ]. https://kns.cnki.net/KCMS/detail/detail.aspx?filename=DWJS20240112001&dbname=CJFD&dbcode=CJFQ https://kns.cnki.net/KCMS/detail/detail.aspx?filename=DWJS20240112001&dbname=CJFD&dbcode=CJFQ .
HAN Pingping , CHEN Pengfei , DING Ming , et al . Quantitative analysis of inertia support capacity of direct-drive fan under VSG control [J/OL]. Power System Technology [ 2025-02-27 ]. https://kns.cnki.net/KCMS/detail/detail.aspx?file name=DWJS20240112001&dbname=CJFD&dbcode=CJFQ https://kns.cnki.net/KCMS/detail/detail.aspx?filename=DWJS20240112001&dbname=CJFD&dbcode=CJFQ .
国家市场监督管理总局 , 国家标准化管理委员会 . 虚拟同步机 : GB/T 38983.1—2020 [S]. 北京 : 中国标准出版社 , 2020 .
State Administration for Market Regulation , Standardization Administration of the People’s Republic of China . Virtual synchronous machine : GB/T 38983.1—2020 [S]. Beijing : Standards Press of China , 2020 .
张纯江 , 暴云飞 , 孟宪慧 , 等 . 直流微网储能DC/DC变换器的自适应虚拟直流电机控制 [J]. 电力系统保护与控制 , 2023 , 51 ( 1 ): 12 - 20 .
ZHANG Chunjiang , BAO Yunfei , MENG Xianhui , et al . Adaptive virtual DC machine control for a DC microgrid energy storage DC/DC converter [J]. Power System Protection and Control , 2023 , 51 ( 1 ): 12 - 20 .
王勉 , 唐芬 , 赵宇明 , 等 . 虚拟直流电机的参数自适应控制策略 [J]. 电力系统自动化 , 2020 , 44 ( 14 ): 148 - 155 .
WANG Mian , TANG Fen , ZHAO Yuming , et al . Parameter adaptive control strategy of virtual DC machine [J]. Automation of Electric Power Systems , 2020 , 44 ( 14 ): 148 - 155 .
刘自发 , 刘炎 . 基于虚拟直流机的直流微电网电压稳定控制策略 [J]. 电力系统保护与控制 , 2023 , 51 ( 4 ): 62 - 71 .
LIU Zifa , LIU Yan . Voltage stability control strategy of a DC microgrid based on a virtual DC machine [J]. Power System Protection and Control , 2023 , 51 ( 4 ): 62 - 71 .
LIN G , MA J J , LI Y , et al . A virtual inertia and damping control to suppress voltage oscillation in islanded DC microgrid [J]. IEEE Transactions on Energy Conversion , 2021 , 36 ( 3 ): 1711 - 1721 .
张可心 , 朱琳 , 赵学深 , 等 . 多换流器直流系统的虚拟惯性评估与控制参数协调设计 [J]. 电力系统自动化 , 2024 , 48 ( 10 ): 87 - 95 .
ZHANG Kexin , ZHU Lin , ZHAO Xueshen , et al . Virtual inertia evaluation and coordinated design of control parameters for multi-converter DC system [J]. Automation of Electric Power Systems , 2024 , 48 ( 10 ): 87 - 95 .
ZHU X R , MENG F Q , XIE Z Y , et al . An inertia and damping control method of DC-DC converter in DC microgrids [J]. IEEE Transactions on Energy Conversion , 2020 , 35 ( 2 ): 799 - 807 .
朱晓荣 , 杜策 , 李宇航 , 等 . 直流微电网风储惯量协调控制策略 [J]. 电力自动化设备 , 2024 , 44 ( 11 ): 103 - 110 .
ZHU Xiaorong , DU Ce , LI Yuhang , et al . Coordinated control strategy of wind-storage inertia for DC microgrid [J]. Electric Power Automation Equipment , 2024 , 44 ( 11 ): 103 - 110 .
王慧 , 赵书强 , 孟建辉 , 等 . 基于下垂曲线截距调整的直流微电网自适应虚拟惯性控制 [J]. 电力系统自动化 , 2021 , 45 ( 24 ): 97 - 105 .
WANG Hui , ZHAO Shuqiang , MENG Jianhui , et al . Adaptive virtual inertia control for DC microgrid based on droop curve intercept adjustment [J]. Automation of Electric Power Systems , 2021 , 45 ( 24 ): 97 - 105 .
张祥宇 , 陈立威 , 付媛 . 直流微电网暂态自适应虚拟惯性控制策略及其参数可行域研究 [J]. 电力自动化设备 , 2023 , 43 ( 11 ): 141 - 149 .
ZHANG Xiangyu , CHEN Liwei , FU Yuan . Research on transient adaptive virtual inertia control strategy of DC microgrid and its parameter feasibility region [J]. Electric Power Automation Equipment , 2023 , 43 ( 11 ): 141 - 149 .
DENG F , ZHANG L , XIAO Z H , et al . Inertia emulation in droop-based DC microgrids with equivalent converter impedance reshaping [J]. IEEE Transactions on Power Electronics , 2024 , 39 ( 11 ): 15206 - 15216 .
李怡 , 李永丽 , 李松 , 等 . 基于VSG的光伏及混合储能系统功率分配与虚拟惯性控制 [J]. 电力自动化设备 , 2023 , 43 ( 7 ): 27 - 34 .
LI Yi , LI Yongli , LI Song , et al . Power distribution and virtual inertia control of photovoltaic and hybrid energy storage system based on VSG [J]. Electric Power Automation Equipment , 2023 , 43 ( 7 ): 27 - 34 .
赵争鸣 , 虞竹珺 , 施博辰 . 电力电子混杂系统多时间尺度分析控制与应用(一):理论部分 [J]. 中国电机工程学报 , 2023 , 43 ( 1 ): 236 - 250 .
ZHAO Zhengming , YU Zhujun , SHI Bochen . Multi-timescale analysis and control of power electronics hybrid systems (Ⅰ): theory [J]. Proceedings of the CSEE , 2023 , 43 ( 1 ): 236 - 250 .
虞竹珺 , 赵争鸣 , 施博辰 . 电力电子混杂系统多时间尺度分析控制与应用(二):应用部分 [J]. 中国电机工程学报 , 2023 , 43 ( 1 ): 677 - 692 .
YU Zhujun , ZHAO Zhengming , SHI Bochen . Multi-timescale analysis and control of power electronics hybrid systems (Ⅱ): applications [J]. Proceedings of the CSEE , 2023 , 43 ( 1 ): 677 - 692 .
贾焦心 , 杨添淇 , 颜湘武 , 等 . 电力电子并网装备等效惯量评估研究进展 [J]. 电力自动化设备 , 2023 , 43 ( 9 ): 3 - 10 .
JIA Jiaoxin , YANG Tianqi , YAN Xiangwu , et al . Research progress on equivalent inertia estimation of grid-connected power electronic devices [J]. Electric Power Automation Equipment , 2023 , 43 ( 9 ): 3 - 10 .
贾焦心 , 沈钟毓 , 秦本双 , 等 . 构网型和跟网型电力电子装备混联系统惯量响应的匹配问题综述 [J]. 电力自动化设备 , 2024 , 44 ( 6 ): 77 - 89 .
JIA Jiaoxin , SHEN Zhongyu , QIN Benshuang , et al . Review on inertia response matching problem of hybrid power systems with grid-forming and grid-following power electronic devices [J]. Electric Power Automation Equipment , 2024 , 44 ( 6 ): 77 - 89 .
苟少云 , 郭春义 . 构网型与跟网型混合直驱风电场并网稳定域分析 [J]. 电力系统自动化 , 2025 , 49 ( 2 ): 73 - 83 .
GOU Shaoyun , GUO Chunyi . Grid-connection stability domain analysis for wind farms with hybrid direct-drive grid-forming and grid-following wind turbines [J]. Automation of Electric Power Systems , 2025 , 49 ( 2 ): 73 - 83 .
张斌 , 张学广 , 徐殿国 . 构网型与跟网型变流器混联并网系统配比关键影响因素分析 [J]. 电力系统自动化 , 2025 , 49 ( 1 ): 47 - 58 .
ZHANG Bin , ZHANG Xueguang , XU Dianguo . Analysis on key influence factors of ratio of grid-forming and grid-following converters in hybrid parallel grid-connected system [J]. Automation of Electric Power Systems , 2025 , 49 ( 1 ): 47 - 58 .
王冠淇 , 裴玮 , 熊佳旺 , 等 . 跟网型和构网型变流器混合系统稳定性分析方法 [J]. 中国电机工程学报 , 2025 , 45 ( 1 ): 25 - 37 .
WANG Guanqi , PEI Wei , XIONG Jiawang , et al . Stability analysis method for hybrid systems of grid-following and grid-forming inverters [J]. Proceedings of the CSEE , 2025 , 45 ( 1 ): 25 - 37 .
蒙昌鑫 , 王延旭 , 王威儒 , 等 . 跟网/构网型控制交互下换流器中频特性分析及振荡抑制 [J]. 电力系统自动化 , 2025 , 49 ( 7 ): 68 - 79 .
MENG Changxin , WANG Yanxu , WANG Weiru , et al . Medium-frequency characteristic analysis and oscillation suppression of converter with interaction between grid-following and grid-forming control [J]. Automation of Electric Power Systems , 2025 , 49 ( 7 ): 68 - 79 .
李明 , 常永康 , 毛永涛 , 等 . 高渗透率新能源发电并网变流器跟网/构网型稳定控制技术综述与展望 [J]. 高电压技术 , 2024 , 50 ( 11 ): 4773 - 4788 .
LI Ming , CHANG Yongkang , MAO Yongtao , et al . Review and prospect of stability control techniques for grid-following/grid-forming converters in high-penetration renewable energy generation [J]. High Voltage , 2024 , 50 ( 11 ): 4773 - 4788 .
迟永宁 , 江炳蔚 , 胡家兵 , 等 . 构网型变流器:物理本质与特征 [J]. 高电压技术 , 2024 , 50 ( 2 ): 590 - 604 .
CHI Yongning , JIANG Bingwei , HU Jiabing , et al . Grid-forming converters: physical mechanism and characteristics [J]. High Voltage Engineering , 2024 , 50 ( 2 ): 590 - 604 .
TU H , YU H , LUKIC S . Impact of virtual inertia on DC grid stability with constant power loads [J]. IEEE Transactions on Power Electronics , 2023 , 38 ( 5 ): 5693 - 5699 .
邱关源 . 电路 [M]. 6版 . 北京 : 高等教育出版社 , 2022 .
QIU Guanyuan . Circuits [M]. 6th ed . Beijing : Higher Education Press , 2022 .
陈湘 , 付强 , 宾子君 , 等 . 附加频率控制下并网换流器的动态惯量及其量化评估 [J]. 电力系统自动化 , 2024 , 48 ( 8 ): 131 - 140 .
CHEN Xiang , FU Qiang , BIN Zijun , et al . Dynamic inertia of grid-connected converter with additional frequency control and its quantitative evaluation [J]. Automation of Electric Power Systems , 2024 , 48 ( 8 ): 131 - 140 .
刘晓 , 董春发 , 瞿寒冰 , 等 . 低压直流系统高频振荡问题的降阶建模及控制参数设计 [J]. 中国电力 , 2024 , 57 ( 2 ): 82 - 93 .
LIU Xiao , DONG Chunfa , QU Hanbing , et al . Reduced-order modeling and control parameter design of high-frequency oscillation in low-voltage DC system [J]. Electric Power , 2024 , 57 ( 2 ): 82 - 93 .
李鹏飞 , 郭力 , 王洪达 , 等 . 直流微电网高频振荡稳定问题的降阶建模及分析 [J]. 电力自动化设备 , 2021 , 41 ( 5 ): 65 - 72 .
LI Pengfei , GUO Li , WANG Hongda , et al . Reduced-order modeling and analysis of high-frequency oscillation stability in DC microgrid [J]. Electric Power Automation Equipment , 2021 , 41 ( 5 ): 65 - 72 .
WANG Z S , WANG P , JIANG W T , et al . A decentralized automatic load power allocation strategy for hybrid energy storage system [J]. IEEE Transactions on Energy Conversion , 2021 , 36 ( 3 ): 2227 - 2238 .
CHEN J W , SONG Q C . A decentralized dynamic load power allocation strategy for fuel cell/supercapacitor-based APU of large more electric vehicles [J]. IEEE Transactions on Industrial Electronics , 2019 , 66 ( 2 ): 865 - 875 .
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