RESEARCH ON ADAPTIVE VSG CONTROL STRATEGY BASED ON ENERGY STORAGE COORDINATION

Zhu Zuobin; Sun Shumin; Ding Yueming; Huang Shaoping

doi:10.19912/j.0254-0096.tynxb.2022-1215

PDF(2257 KB)

Acta Energiae Solaris Sinica ›› 2023, Vol. 44 ›› Issue (12) : 410-419. DOI: 10.19912/j.0254-0096.tynxb.2022-1215

RESEARCH ON ADAPTIVE VSG CONTROL STRATEGY BASED ON ENERGY STORAGE COORDINATION

Zhu Zuobin^1,2, Sun Shumin^1,2, Ding Yueming³, Huang Shaoping⁴

Author information +

History +

Abstract

In view of the disadvantages of high proportion of the underdamping of power electronic devices and the difficulty of inertia to effectively and actively support the system frequency when high proportion of renewable energy connected to the power grid, and in order to take into account the important role of stable frequency and power regulation of the energy storage system, an adaptive virtual synchronous generator（VSG） control strategy based on energy storage coordination is proposed in this paper. First of all, the basic structure of optical storage and grid connection of VSG and the basic control structure of each module unit are established. Secondly, the control strategy of virtual synchronous machine based on energy storage coordination adaptive rotating inertia and damping coordination is designed. According to the power angular vibration characteristic curve and rotor angular frequency curve, the relationship between rotating inertia and damping and frequency change is derived. The change of SOC capacity is used to generate the active reference value of VSG through energy storage coordination controller to coordinate J and D to participate in P-f frequency modulation. Meanwhile, the DC side energy storage DCDC control strategy combined with droop characteristics is coupled to the AC side VSG control strategy, and the dynamic performance of the adaptive VSG control strategy based on energy storage coordination is analyzed. Finally, an adaptive VSG optical storage microgrid system simulation model based on energy storage coordination is established. The feasibility of this method is verified by simulation experiments. The simulation results show that compared with the conventional adaptive VSG control strategy, the adaptive VSG control strategy based on energy storage coordination can give full play to the role of energy storage, better coordinate J and D to adaptively adjust the system frequency and stabilize power, suppress fluctuations, and improve the transient performance of the system.

Key words

microgrid / frequency response / energy storage / adaptive control

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

Zhu Zuobin, Sun Shumin, Ding Yueming, Huang Shaoping. RESEARCH ON ADAPTIVE VSG CONTROL STRATEGY BASED ON ENERGY STORAGE COORDINATION[J]. Acta Energiae Solaris Sinica. 2023, 44(12): 410-419 https://doi.org/10.19912/j.0254-0096.tynxb.2022-1215

References

[1] 文云峰, 杨伟峰, 汪荣华, 等. 构建100%可再生能源电力系统述评与展望[J]. 中国电机工程学报, 2020, 40(6): 1843-1856.
WEN Y F, YANG W F, WANG R H, et al.Review and prospect of toward 100% renewable energy power systems[J]. Proceedings of the CSEE, 2020, 40(6): 1843-1856.
[2] 董凌, 李延和, 刘锋, 等. 区域全清洁能源供电的发展路径与实践: 以青海省为例[J]. 全球能源互联网, 2020, 3(4): 385-392.
DONG L, LI Y H, LIU F, et al.Development path and practice of regional fully clean power supply: a case study of Qinghai Province[J]. Journal of global energy interconnection, 2020, 3(4): 385-392.
[3] 吴舟, 邹晓松, 袁旭峰, 等. 计及储能动态的VSG惯量阻尼自适应控制研究[J]. 电网与清洁能源, 2020, 36(12): 83-91.
WU Z, ZOU X S, YUAN X F, et al.Research on VSG rotational inertia and damping adaptive control considering energy storage dynamics[J]. Power system and clean energy, 2020, 36(12): 83-91.
[4] 王振浩, 张越, 成龙, 等. 多参数协同自适应的改进虚拟同步控制策略[J]. 电网技术, 2023, 47(6): 2403-2414.
WANG Z H, ZHANG Y, CHENG L, et al.Improved virtual synchronization control strategy with multi-parameter adaptive collaboration[J]. Power system technology, 2023, 47(6): 2403-2414.
[5] 于晶荣, 孙文, 于佳琪, 等. 基于惯性自适应的并网逆变器虚拟同步发电机控制[J]. 电力系统保护与控制, 2022, 50(4): 137-144.
YU J R, SUN W, YU J Q, et al.Virtual synchronous generator control of a grid-connected inverter based on adaptive inertia[J]. Power system protection and control, 2022, 50(4): 137-144.
[6] 兰征, 龙阳, 曾进辉, 等. 引入暂态电磁功率补偿的VSG控制策略[J]. 电网技术, 2022, 46(4): 1421-1429.
LAN Z, LONG Y, ZENG J H, et al.VSG control strategy with transient electromagnetic power compensation[J]. Power system technology, 2022, 46(4): 1421-1429.
[7] 李志军, 贾学岩, 王丽娟, 等. 基于改进惯量阻尼特性的VSG控制策略[J]. 太阳能学报, 2021, 42(7): 78-85.
LI Z J, JIA X Y, WANG L J, et al.Improved virtual synchronous generator based on enhanced inertia and damping characteristics[J]. Acta energiae solaris sinica, 2021, 42(7): 78-85.
[8] LI D D, ZHU Q W, LIN S F, et al.A self-adaptive inertia and damping combination control of VSG to support frequency stability[J]. IEEE transactions on energy conversion, 2017, 32(1): 397-398.
[9] 杨赟, 梅飞, 张宸宇, 等. 虚拟同步发电机转动惯量和阻尼系数协同自适应控制策略[J]. 电力自动化设备, 2019, 39(3): 125-131.
YANG Y, MEI F, ZHANG C Y, et al.Coordinated adaptive control strategy of rotational inertia and damping coefficient for virtual synchronous generator[J]. Electric power automation equipment, 2019, 39(3): 125-131.
[10] 张良, 范广胜, 黄南天, 等. 交直流混合微电网母线接口参数自适应VSG控制策略[J]. 电力系统保护与控制, 2021, 49(14): 45-54.
ZHANG L, FAN G S, HUANG N T, et al.Adaptive VSG control strategy for interlinking converter in an AC/DC hybrid microgrid[J]. Power system protection and control, 2021, 49(14): 45-54.
[11] 温春雪, 陈丹, 胡长斌, 等. 微网逆变器的VSG转动惯量和阻尼系数自适应控制[J]. 电力系统自动化, 2018, 42(17): 120-126, 183.
WEN C X, CHEN D, HU C B, et al.Self-adaptive control of rotational inertia and damping coefficient of VSG for converters in microgrid[J]. Automation of electric power systems, 2018, 42(17): 120-126, 183.
[12] 孙亮, 杨晓飞, 孙立国, 等. 基于改进虚拟同步发电机的多逆变器频率无差控制策略[J]. 电力系统保护与控制, 2021, 49(11): 18-27.
SUN L, YANG X F, SUN L G, et al.Frequent deviation-free control for microgrid multi-inverters based on improving a virtual synchronous generator[J]. Power system protection and control, 2021, 49(11): 18-27.
[13] 张赟宁, 周小萌. 并网逆变器分数阶虚拟惯性的虚拟同步发电机控制技术[J]. 控制与决策, 2021, 36(2): 463-468.
ZHANG Y N, ZHOU X M.Virtual synchronous generator control technology with fractional virtual inertia for grid-connected inverters[J]. Control and decision, 2021, 36(2): 463-468.
[14] 陈宇杰, 王淳, 王青, 等. 基于角频率偏差补偿的VSG有功控制[J]. 电网技术, 2019, 43(9): 3432-3439.
CHEN Y J, WANG C, WANG Q, et al.A VSG active power control based on angular frequency deviation compensation[J]. Power system technology, 2019, 43(9): 3432-3439.
[15] 殷桂梁, 董浩, 代亚超, 等. 光伏微网中虚拟同步发电机参数自适应控制策略[J]. 电网技术, 2020, 44(1): 192-199.
YIN G L, DONG H, DAI Y C, et al.Adaptive control strategy of VSG parameters in photovoltaic microgrid[J]. Power system technology, 2020, 44(1): 192-199.
[16] 陈文倩, 辛小南, 程志平. 基于虚拟同步发电机的光储并网发电控制技术[J]. 电工技术学报, 2018, 33(S2): 538-545.
CHEN W Q, XIN X N, CHENG Z P.Control of grid-connected of photovoltaic system with storage based on virtual synchronous generator[J]. Transactions of China Electrotechnical Society, 2018, 33(S2): 538-545.
[17] HOU X C, SUN Y, ZHANG X, et al.Improvement of frequency regulation in VSG-based AC microgrid via adaptive virtual inertia[J]. IEEE transactions on power electronics, 2020, 35(2): 1589-1602.
[18] 程启明, 余德清, 程尹曼, 等. 基于自适应旋转惯量的虚拟同步发电机控制策略[J]. 电力自动化设备, 2018, 38(12): 79-85.
CHENG Q M, YU D Q, CHENG Y M, et al.Control strategy of virtual synchronous generator based on adaptive rotational inertia[J]. Electric power automation equipment, 2018, 38(12): 79-85.
[19] WAN X Y, GAN Y M, ZHANG F, et al.Research on control strategy of virtual synchronous generator based on self-adaptive inertia and damping[C]//2020 4th International Conference on HVDC (HVDC). Xi’an, China, 2020: 1006-1012.
[20] LIU J, YANG D J, YAO W, et al.PV-based virtual synchronous generator with variable inertia to enhance power system transient stability utilizing the energy storage system[J]. Protection and control of modern power systems, 2017, 2(1): 1-8.
[21] 程子霞, 于洋, 柴旭峥. 基于协同自适应控制的光储VSG运行控制研究[J]. 电力系统保护与控制, 2020, 48(24): 79-85.
CHENG Z X, YU Y, CHAI X Z.Research on operation control of a photovoltaic system with storage VSG based on cooperative adaptive control[J]. Power system protection and control, 2020, 48(24): 79-85.
[22] LIU J, YANG D J, YAO W, et al.Flexible virtual synchronous generator control for distributed generator with adaptive inertia[J]. Electric power components and systems, 2019, 47(1): 128-140.