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...
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| Format: | Article |
| Language: | English |
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MDPI AG
2016-04-01
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| Series: | Energies |
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| Online Access: | http://www.mdpi.com/1996-1073/9/4/277 |
| _version_ | 1798043491319676928 |
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| author | Niancheng Zhou Fan Ye Qianggang Wang Xiaoxuan Lou Yuxiang Zhang |
| author_facet | Niancheng Zhou Fan Ye Qianggang Wang Xiaoxuan Lou Yuxiang Zhang |
| author_sort | Niancheng Zhou |
| collection | DOAJ |
| 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 | 2024-04-11T22:50:05Z |
| format | Article |
| id | doaj.art-4f6fce1591f94d34b2f35aab7da1bb78 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T22:50:05Z |
| publishDate | 2016-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-4f6fce1591f94d34b2f35aab7da1bb782022-12-22T03:58:36ZengMDPI AGEnergies1996-10732016-04-019427710.3390/en9040277en9040277Short-Circuit Calculation in Distribution Networks with Distributed Induction GeneratorsNiancheng Zhou0Fan Ye1Qianggang Wang2Xiaoxuan Lou3Yuxiang Zhang4State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, ChinaState Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, ChinaState Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, ChinaState Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, ChinaSchool of Electricaland Electronic Engineering, Nanyang Technological University, Singapore 639798, SingaporeThis 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.http://www.mdpi.com/1996-1073/9/4/277short circuit calculationinduction generatorsymmetrical componentsrotor slipsteady-state equivalent circuitdistribution network |
| spellingShingle | Niancheng Zhou Fan Ye Qianggang Wang Xiaoxuan Lou Yuxiang Zhang Short-Circuit Calculation in Distribution Networks with Distributed Induction Generators Energies short circuit calculation induction generator symmetrical components rotor slip steady-state equivalent circuit distribution network |
| 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 | short circuit calculation induction generator symmetrical components rotor slip steady-state equivalent circuit distribution network |
| url | http://www.mdpi.com/1996-1073/9/4/277 |
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