POWER-FREQUENCY OSCILLATION SUPPRESSION STRATEGY OF VIRTUAL SYNCHRONOUS GENERATOR BASED ON UDE

Chen Jian; Ren Yongfeng; Yun Pingping; Xue Yu; Hu Zhishuai; Mi Yue

doi:10.19912/j.0254-0096.tynxb.2021-0750

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (12) : 220-226. DOI: 10.19912/j.0254-0096.tynxb.2021-0750

POWER-FREQUENCY OSCILLATION SUPPRESSION STRATEGY OF VIRTUAL SYNCHRONOUS GENERATOR BASED ON UDE

Chen Jian¹, Ren Yongfeng¹, Yun Pingping², Xue Yu¹, Hu Zhishuai¹, Mi Yue²

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Abstract

A power frequency oscillation suppression strategy based on uncertainty and disturbance estimator （UDE） is proposed to solve the problem of power frequency oscillation caused by virtual synchronous generator （VSG） technology in distributed generation grid-connected inverter. The power angle stability mechanism and power frequency oscillation characteristics are analyzed in depth, and the active loop oscillation suppression control model based on UDE is established. The control method replaces the external disturbance and uncertainty with lumped disturbance and the first-order low pass filter is used to estimate the lumped disturbance. The filtering bandwidth idea is used to suppress the power frequency oscillation, which has good system robustness. Finally, the effectiveness of the proposed oscillation suppression strategy is verified by time domain simulation experiments.

Key words

distributed power generation / low pass filter / robustness / power-frequency oscillation / virtual synchronous generator

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Chen Jian, Ren Yongfeng, Yun Pingping, Xue Yu, Hu Zhishuai, Mi Yue. POWER-FREQUENCY OSCILLATION SUPPRESSION STRATEGY OF VIRTUAL SYNCHRONOUS GENERATOR BASED ON UDE[J]. Acta Energiae Solaris Sinica. 2022, 43(12): 220-226 https://doi.org/10.19912/j.0254-0096.tynxb.2021-0750

References

[1] 吕志鹏, 盛万兴, 刘海涛, 等. 虚拟同步机技术在电力系统中的应用与挑战[J]. 中国电机工程学报, 2017, 37(2): 349-359.
LYU Z P, SHENG W X, LIU H T, et al.Application and challenge of virtual synchronous machine technology in power system[J]. Proceedings of the CSEE, 2017, 37(2): 349-359.
[2] 钟庆昌, 王晓琳, 曹鑫, 等(译). 新能源接入智能电网的逆变控制关键技术[M]. 北京: 机械工业出版社, 2016.
ZHONG Q C, WANG X L, CAO X, et al.Control of power inverters in renewable energy and smart grid integration[M]. Beijing: China Machine Press, 2016.
[3] 任永峰, 云平平, 薛宇, 等. NSC改善DFIG电能质量与故障穿越研究[J]. 中国电机工程学报, 2018, 38(17): 5052-5062.
REN Y F, YUN P P, XUE Y, et al.The NSC for improving fault ride-through and power quality of DFIG[J]. Proceedings of the CSEE, 2018, 38(17): 5052-5062.
[4] 国家发展改革委, 国家能源局. 关于提升电力系统调节能力的指导意见[发改能源(2018)364号][EB/OL]. [2018-02-28]. http://www.ndrc.gov.cn/zcfb/zcfbtz/201803/t20180323_880126.html.
National development and reform commission, National energy administration. Guiding opinions on upgrading power system regulation capacity[No.(2018)364][EB/OL][2018-02-28]. http://www.ndrc.gov.cn/zcfb/zcfbtz/201803/t20180323_880126.html.
[5] ZHONG Q C, WEISS G.Synchronverters: inverters that mimic synchronous generators[J]. IEEE transactions on industrial electronics, 2011, 58(4): 1259-1267.
[6] 颜湘武, 贾焦心, 王德胜, 等. 虚拟同步发电机的并网功率控制及模式平滑切换[J]. 电力系统自动化, 2018, 42(9): 91-99.
YAN X W, JIA J X, WANG D S, et al.Power control and smooth mode switchover forgrid-connected virtual synchronous generators[J]. Automation of electric power systems, 2018, 42(9): 91-99.
[7] 王皓靖, 刘舒, 包海龙, 等. 运用虚拟同步机技术的新型兆瓦级光-储并网结构[J]. 太阳能学报, 2021, 42(1): 446-452.
WANG H J, LIU S, BAO H L, et al.A new megawatt structure of PV and energy storages with virtual synchronous generator[J]. Acta energiae solaris sinica, 2021, 42(1): 446-452.
[8] ZHONG Q C.Power electronics-enabled autonomous power systems: next generation smart grids[M]. New York: Wiley-IEEE Press, 2020.
[9] FRASETYO M B, WIJAYA F D, FIRMANSYAH E. Review on virtual synchronous generator model and control for improving microgrid stability[C]//2021 7th International Conference on Electrical Energy Systems (ICEES), 2021, Chennai, India: 397-402.
[10] 缪惠宇, 杨赟, 梅飞, 等. 一种虚拟同步机运行模式平滑切换控制策略[J]. 太阳能学报, 2020, 41(9): 121-128.
MIAO H Y, YANG Y, MEI F, et al.A seamless mode switching control strategy in virtual synchronous generator[J]. Acta energiae solaris sinica, 2020, 41(9): 121-128.
[11] 齐琛, 汪可友, 吴盼, 等. 虚拟同步机功角稳定的参数空间分析[J]. 中国电机工程学报, 2019, 39(15): 4363-4373.
QI C, WANG K Y, WU P, et al.Parameter space analysis of power angle stability of virtual synchronous generators[J]. Proceedings of the CSEE, 2019, 39(15): 4363-4373.
[12] 张祥宇, 朱正振, 王琛, 等. 风电高渗透虚拟同步电力系统的功角暂态稳定性分析[J]. 太阳能学报, 2021, 42(2): 136-143.
ZHANG X Y, ZHU Z Z, WANG C, et al.Transient stability analysis of power angle in virtual synchronous system with high wind penetration[J]. Acta energiae solaris sinica, 2021, 42(2): 136-143.
[13] 盛万兴, 吕志鹏, 崔健. 虚拟同步机运行区域计算与参数分析[J]. 电网技术, 2019, 43(5): 1557-1565.
SHENG W X, LYU Z P, CUI J.Calculation and parameter analysis of virtual synchronous machine operationarea[J]. Power system technology, 2019, 43(5): 1557-1565.
[14] 王亚维, 刘邦银, 段善旭, 等. 虚拟同步控制的暂态特性优化策略研究[J]. 中国电机工程学报, 2019, 39(20): 5885-5893.
WANG Y W, LIU B Y, DUAN S X, et al.Research on transient characteristic optimization of virtual synchronous control strategy[J]. Proceedings of the CSEE, 2019, 39(20): 5885-5893.
[15] 张福东, 朴政国, 郭裕祺, 等. VSG转动惯量的自适应控制策略研究[J]. 太阳能学报, 2020, 41(10): 93-100.
ZHANG F D, PIAO Z G, GUO Y Q, et al.Research on adaptive control strategy of VSG rotational inertia[J]. Acta energitica solaris sinica, 2020, 41(10): 93-100.
[16] ZHONG Q C, REES D.Control of uncertain LTI systems based on an uncertainty and disturbance estimator[J]. ASME transactions journal of dynamic systems, measurement and control, 2004, 126: 905-910.
[17] WANG Y Q, REN B B, ZHONG Q C.Bounded UDE-based controller for input constrained systems with uncertainties and disturbances[J]. IEEE transactions on industrial electronics, 2021, 68(2): 1560-1570.
[18] REN J J, YE Y Q, XU G F, et al.Uncertainty anddisturbance estimator-based current control scheme for PMSM drives with a simple parametertuning algorithm[J]. IEEE transactions on power electronics, 2017, 32(7): 5712-5722.
[19] WANG Y Q, REN B B, ZHONG Q C.Robust power flow control of grid-connected inverters[J]. IEEE transactions on industrial electronics, 2016, 63(11): 6887-6897.
[20] ZHONG Q C, WANG Y Q, REN B B.UDE-based robust droop control of inverters in parallel operation[J]. IEEE transactions on industrial electronics, 2017, 64(9): 7552-7562.
[21] WANG Y Q, DONG Y T, REN B B, et al. ude-based robust control for AC/DC converters[C]//IECON2018 -44th Annual Conference of the IEEE Industrial Electronics Society, 2018, Washington, DC, USA: 1550-1555.