气候变化领域集成服务门户(CCPortal): Reduced-Order Transfer Function Model of the Droop-Controlled Inverter via Jordan Continued-Fraction Expansion

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DOI	10.1109/TEC.2020.2980033
	Reduced-Order Transfer Function Model of the Droop-Controlled Inverter via Jordan Continued-Fraction Expansion
	Wang, Rui; Sun, Qiuye; Zhang, Pinjia; Gui, Yonghao; Qin, Dehao; Wang, Peng
发表日期	2020
ISSN	0885-8969
起始页码	1585
结束页码	1595
卷号	35 期号:3
英文摘要	This article proposes a reduced-order small-signal closed-loop transfer function model based on Jordan continued-fraction expansion to assess the dynamic characteristics of the droop-controlled inverter and provide the preprocessing method for the real-time simulation of power systems. Firstly, dynamic phasors, time delay and zero-order hold are embedded into the small-signal model at the same time, then the closed-loop transfer function of the droop-controlled inverter is built. Compared with the existing closed-loop transfer function approaches, the accuracy of the built transfer function model is dramatically enhanced. Meanwhile, the inner cascaded voltage/current controller parameters are also designed. In order to directly obtain and preserve the maximum overshoot and settling time, which are main features to evaluate the system input-output dynamic response characteristics, the reduced second order closed-loop transfer function is proposed through the continued-fraction expansion regarding arbitrary points on the real frequency axis. Therein, this second order closed-loop transfer function with dynamic response of the original inverter is reduced to the lowest order. Furthermore, combined with the impedance-based approach, the proposed stability assessment approach is utilized to analyze the stability of the microgrid with multiple converters. Finally, simulations and experimental results demonstrate the convenience and accuracy of the proposed approach.
英文关键词	Inverters; Power system stability; Transfer functions; Stability criteria; Power system dynamics; Voltage control; Reduced-order; Jordan continued-fraction expa-nsion; dynamic response; droop-controlled inverter
WOS研究方向	Energy & Fuels ; Engineering
WOS类目	Energy & Fuels ; Engineering, Electrical & Electronic
来源期刊	IEEE TRANSACTIONS ON ENERGY CONVERSION
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/158821
作者单位	Sun, QY (corresponding author), Northeastern Univ, Shenyang 110819, Liaoning, Peoples R China.
推荐引用方式 GB/T 7714	Wang, Rui,Sun, Qiuye,Zhang, Pinjia,et al. Reduced-Order Transfer Function Model of the Droop-Controlled Inverter via Jordan Continued-Fraction Expansion[J],2020,35(3).
APA	Wang, Rui,Sun, Qiuye,Zhang, Pinjia,Gui, Yonghao,Qin, Dehao,&Wang, Peng.(2020).Reduced-Order Transfer Function Model of the Droop-Controlled Inverter via Jordan Continued-Fraction Expansion.IEEE TRANSACTIONS ON ENERGY CONVERSION,35(3).
MLA	Wang, Rui,et al."Reduced-Order Transfer Function Model of the Droop-Controlled Inverter via Jordan Continued-Fraction Expansion".IEEE TRANSACTIONS ON ENERGY CONVERSION 35.3(2020).