Modeling and Stability Analysis of a Power Electronic Transformer-based Active Distribution Network

被引：0

作者：

Wang, Jianhua ^{[1
]}

Li, Wenbing ^{[1
]}

Luo, Fangfagn ^{[1
]}

Gu, Wei ^{[1
]}

Duan, Qing ^{[2
]}

机构：

[1] Southeast Univ, Sch Elect Engn, Nanjing, Jiangsu, Peoples R China

[2] China Elect Power Res Inst, Beijing Key Lab Distribut Transformer Energy Savi, Beijing, Peoples R China

来源：

2018 IEEE POWER & ENERGY SOCIETY GENERAL MEETING (PESGM) | 2018年

基金：

中国国家自然科学基金;

关键词：

Active distribution network; input impedance; output impedance; power electronic transformer; stability;

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Stability is of great concern for active distribution network that integrated with Power Electronic Transformer (PET). Under this circumstance, this paper gives detailed derivations of the small signal impedance models of PET and grid emulator in the synchronous rotating (dq) frame at first, which is further verified by comparing the calculated impedances with the measured ones in software. Then the impedance-based Nyquist stability criteria is used to determine the stability of the interconnected system. Moreover, two simulation cases both in time domain and frequency domain are given, showing the stable and unstable conditions by adjusting the control parameters (modifying the ratio of the source and load impedances). Finally, the experimental results verify the practicability and validity of the proposed models.

引用

页数：5

共 4 条

[1] [Anonymous], TECHNOLOGY REV
[2] Kolar J. W., 2015, 5 INT C POW ENG EN E
[3] Stability Assessment Extensions for Single-Phase Distribution Solid-State Transformers
Shah, D. G.
Crow, M. L.
[J]. IEEE TRANSACTIONS ON POWER DELIVERY, 2015, 30 (03) : 1636 - 1638
[4] Stability Design Criteria for Distribution Systems With Solid-State Transformers
Shah, Darshit G.
Crow, M. L.
[J]. IEEE TRANSACTIONS ON POWER DELIVERY, 2014, 29 (06) : 2588 - 2595

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