RESEARCH ON ADAPTIVE VSG CONTROL STRATEGY BASED ON ENERGY STORAGE COORDINATION

被引：0
|
作者：
Zhu Z. [1 ,2 ]
Sun S. [1 ,2 ]
Ding Y. [3 ]
Huang S. [4 ]
机构：
[1] School of Electrical and Electronic Engineering, Shandong University of Technology, Zibo
[2] Electric Power Research Institute of State Grid Shandong Electric Power Company, Ji’nan
[3] Rizhao Power Supply Company of State Grid Shandong Electric Power Company, Rizhao
[4] Hunan Institute of Engineering, Xiangtan
来源：
Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2023年 / 44卷 / 12期
关键词：
adaptive control; energy storage; frequency response; microgrid;
D O I：
10.19912/j.0254-0096.tynxb.2022-1215
中图分类号：
学科分类号：
摘要：
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. © 2023 Science Press. All rights reserved.
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页码：410 / 419
页数：9
相关论文
共 22 条
  • [1] 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, 40, 6, pp. 1843-1856, (2020)
  • [2] DONG L, 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, 3, 4, pp. 385-392, (2020)
  • [3] WU Z, YUAN X F, Et al., Research on VSG rotational inertia and damping adaptive control considering energy storage dynamics［J］, Power system and clean energy, 36, 12, pp. 83-91, (2020)
  • [4] WANG Z, ZHANG Y, CHENG L, Et al., Improved virtual synchronization control strategy with multi-parameter adaptive collaboration［J］, Power system technology, 47, 6, pp. 2403-2414, (2023)
  • [5] 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, 50, 4, pp. 137-144, (2022)
  • [6] LAN Z，, LONG Y, ZENG J H, Et al., VSG control strategy with transient electromagnetic power compensation［J］, Power system technology, 46, 4, pp. 1421-1429, (2022)
  • [7] 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, 42, 7, pp. 78-85, (2021)
  • [8] 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, 32, 1, pp. 397-398, (2017)
  • [9] 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, 39, 3, pp. 125-131, (2019)
  • [10] 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, 49, 14, pp. 45-54, (2021)
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