Frequency-Coupled Impedance Modeling of Virtual Synchronous Generators

被引：38

作者：

Shi, Kai ^{[1
]}

Wang, Yu ^{[1
]}

Sun, Yuxin ^{[1
]}

Xu, Peifeng ^{[1
]}

Gao, Feng ^{[1
]}

机构：

[1] Jiangsu Univ, Sch Elect & Informat Engn, Zhenjiang 212013, Jiangsu, Peoples R China

来源：

IEEE TRANSACTIONS ON POWER SYSTEMS | 2021年 / 36卷 / 04期

基金：

中国国家自然科学基金; 国家重点研发计划;

关键词：

Impedance; Voltage control; Frequency control; Reactive power; Power system stability; Couplings; Mirrors; Virtual synchronous generator; stability analysis; power controllers; sequence impedance model; mirror frequency effect; STABILITY;

D O I：

10.1109/TPWRS.2021.3050568

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The impedance of the virtual synchronous generator (VSG) is an effective method to analyze the dynamic interactions between the VSG and the grid. For the existence of power controllers and asymmetric inner-loop controllers in the d- and q-axis, there are couplings in the output sequence impedance of VSG. Although the couplings are relatively small, they still have a significant impact on the stability performance. However, there is no result published on this aspect up to now. To bridge this gap, a sequence impedance model based on harmonic linearization is established in this paper, which explicitly reveals the mirror frequency effect (MFE) in VSG. Subsequently, the relationships between the power controllers and the MFE are demonstrated. Finally, simulation results verify the feasibility and correctness of the theoretical analysis presented above.

引用

页码：3692 / 3700

页数：9

共 26 条

[11] General analysis of harmonic transfer through converters [J].

Jiang, Y ;

Ekstrom, A .

IEEE TRANSACTIONS ON POWER ELECTRONICS, 1997, 12 (02) :287-293

[12] Analysis and Mitigation of Subsynchronous Resonance in Series-Compensated Grid-Connected System Controlled by a Virtual Synchronous Generator [J].

Li, Gaoxiang ;

Chen, Yandong ;

Luo, An ;

He, Zhixing ;

Wang, Haining ;

Zhu, Zhen ;

Wu, Wenhua ;

Zhou, Leming .

IEEE TRANSACTIONS ON POWER ELECTRONICS, 2020, 35 (10) :11096-11107

[13]

Li WB, 2018, INT CONF POW ELECTR, P1282, DOI 10.23919/IPEC.2018.8507894

[14] Frequency-coupled admittance modelling of grid-connected voltage source converters for the stability evaluation of subsynchronous interaction [J].

Liu, Wei ;

Lu, Zongxiang ;

Wang, Xiongfei ;

Xie, Xiaorong .

IET RENEWABLE POWER GENERATION, 2019, 13 (02) :285-295

[15]

Milano F., 2018, 2018 POW SYST COMP C, P1, DOI DOI 10.23919/PSCC.2018.8450880

[16] On the Stability of Power Electronics-Dominated Systems: Challenges and Potential Solutions [J].

Peng, Qiao ;

Jiang, Qin ;

Yang, Yongheng ;

Liu, Tianqi ;

Wang, Huai ;

Blaabjerg, Frede .

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, 2019, 55 (06) :7657-7670

[17]

Peng Y., 2019, PROC 4 IEEE WORKSHOP, P1

[18] Virtual Impedance Design Considerations for Virtual Synchronous Machines in Weak Grids [J].

Rodriguez-Cabero, Alberto ;

Roldan-Perez, Javier ;

Prodanovic, Milan .

IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS, 2020, 8 (02) :1477-1489

[19] A Modified Sequence-Domain Impedance Definition and Its Equivalence to the dq-Domain Impedance Definition for the Stability Analysis of AC Power Electronic Systems [J].

Rygg, Atle ;

Molinas, Marta ;

Zhang, Chen ;

Cai, Xu .

IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS, 2016, 4 (04) :1383-1396

[20] Impedance-Based Stability Criterion for Grid-Connected Inverters [J].

Sun, Jian .

IEEE TRANSACTIONS ON POWER ELECTRONICS, 2011, 26 (11) :3075-3078

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