Short-Circuit Calculation in Distribution Networks with Distributed Induction Generators
This paper presents an improved current source equivalent model method to determine the short-circuit current of a distribution system with multiple fixed-speed and variable-speed induction generators (IGs). The correlation coefficients of flux components between stator and rotor under the unsymmetr...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2016
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/81497 http://hdl.handle.net/10220/40817 |
| _version_ | 1826117385668526080 |
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| author | Zhou, Niancheng Ye, Fan Wang, Qianggang Lou, Xiaoxuan Zhang, Yuxiang |
| author2 | School of Electrical and Electronic Engineering |
| author_facet | School of Electrical and Electronic Engineering Zhou, Niancheng Ye, Fan Wang, Qianggang Lou, Xiaoxuan Zhang, Yuxiang |
| author_sort | Zhou, Niancheng |
| collection | NTU |
| description | This paper presents an improved current source equivalent model method to determine the short-circuit current of a distribution system with multiple fixed-speed and variable-speed induction generators (IGs). The correlation coefficients of flux components between stator and rotor under the unsymmetrical fault are analyzed using the positive and negative sequence steady-state equivalent circuits of an IG. The terminal voltage and current responses of fixed-speed and variable-speed IGs with and without the rotor slip changes under different penetration levels are compared to investigate the coupling relation between the short-circuit currents of IGs and the nodal voltages in the distribution network. Then the transient equivalent potential of an IG at the grid fault instant is derived. Sequence components of the short-circuit current in the network can be determined using the proposed technique. The correctness of the proposed method is verified using dynamic simulation. |
| first_indexed | 2024-10-01T04:26:45Z |
| format | Journal Article |
| id | ntu-10356/81497 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:26:45Z |
| publishDate | 2016 |
| record_format | dspace |
| spelling | ntu-10356/814972020-03-07T13:57:22Z Short-Circuit Calculation in Distribution Networks with Distributed Induction Generators Zhou, Niancheng Ye, Fan Wang, Qianggang Lou, Xiaoxuan Zhang, Yuxiang School of Electrical and Electronic Engineering Steady-state equivalent circuit Distribution network Short circuit calculation Induction generator Symmetrical components Rotor slip This paper presents an improved current source equivalent model method to determine the short-circuit current of a distribution system with multiple fixed-speed and variable-speed induction generators (IGs). The correlation coefficients of flux components between stator and rotor under the unsymmetrical fault are analyzed using the positive and negative sequence steady-state equivalent circuits of an IG. The terminal voltage and current responses of fixed-speed and variable-speed IGs with and without the rotor slip changes under different penetration levels are compared to investigate the coupling relation between the short-circuit currents of IGs and the nodal voltages in the distribution network. Then the transient equivalent potential of an IG at the grid fault instant is derived. Sequence components of the short-circuit current in the network can be determined using the proposed technique. The correctness of the proposed method is verified using dynamic simulation. Published version 2016-06-28T04:49:25Z 2019-12-06T14:32:18Z 2016-06-28T04:49:25Z 2019-12-06T14:32:18Z 2016 Journal Article Zhou, N., Ye, F., Wang, Q., Lou, X., & Zhang, Y. (2016). Short-Circuit Calculation in Distribution Networks with Distributed Induction Generators. Energies, 9(4), 277-. 1996-1073 https://hdl.handle.net/10356/81497 http://hdl.handle.net/10220/40817 10.3390/en9040277 en Energies © 2016 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/). 21 p. application/pdf |
| spellingShingle | Steady-state equivalent circuit Distribution network Short circuit calculation Induction generator Symmetrical components Rotor slip Zhou, Niancheng Ye, Fan Wang, Qianggang Lou, Xiaoxuan Zhang, Yuxiang Short-Circuit Calculation in Distribution Networks with Distributed Induction Generators |
| title | Short-Circuit Calculation in Distribution Networks with Distributed Induction Generators |
| title_full | Short-Circuit Calculation in Distribution Networks with Distributed Induction Generators |
| title_fullStr | Short-Circuit Calculation in Distribution Networks with Distributed Induction Generators |
| title_full_unstemmed | Short-Circuit Calculation in Distribution Networks with Distributed Induction Generators |
| title_short | Short-Circuit Calculation in Distribution Networks with Distributed Induction Generators |
| title_sort | short circuit calculation in distribution networks with distributed induction generators |
| topic | Steady-state equivalent circuit Distribution network Short circuit calculation Induction generator Symmetrical components Rotor slip |
| url | https://hdl.handle.net/10356/81497 http://hdl.handle.net/10220/40817 |
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