Novel Simplified Model for Asynchronous Machine with Consideration of Frequency Characteristic
The frequency characteristic of electric equipment should be considered in the digital simulation of power systems. The traditional asynchronous machine third-order transient model excludes not only the stator transient but also the frequency characteristics, thus decreasing the application sphere o...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | Journal of Applied Mathematics |
| Online Access: | http://dx.doi.org/10.1155/2014/701964 |
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| _version_ | 1832564609923416064 |
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| author | Changchun Cai Ping Ju Yuqing Jin |
| author_facet | Changchun Cai Ping Ju Yuqing Jin |
| author_sort | Changchun Cai |
| collection | DOAJ |
| description | The frequency characteristic of electric equipment should be considered in the digital simulation of power systems. The traditional asynchronous machine third-order transient model excludes not only the stator transient but also the frequency characteristics, thus decreasing the application sphere of the model and resulting in a large error under some special conditions. Based on the physical equivalent circuit and Park model for asynchronous machines, this study proposes a novel asynchronous third-order transient machine model with consideration of the frequency characteristic. In the new definitions of variables, the voltages behind the reactance are redefined as the linear equation of flux linkage. In this way, the rotor voltage equation is not associated with the derivative terms of frequency. However, the derivative terms of frequency should not always be ignored in the application of the traditional third-order transient model. Compared with the traditional third-order transient model, the novel simplified third-order transient model with consideration of the frequency characteristic is more accurate without increasing the order and complexity. Simulation results show that the novel third-order transient model for the asynchronous machine is suitable and effective and is more accurate than the widely used traditional simplified third-order transient model under some special conditions with drastic frequency fluctuations. |
| format | Article |
| id | doaj-art-6040388957184ceba7f5fa12826a3802 |
| institution | Kabale University |
| issn | 1110-757X 1687-0042 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Applied Mathematics |
| spelling | doaj-art-6040388957184ceba7f5fa12826a38022025-02-03T01:10:41ZengWileyJournal of Applied Mathematics1110-757X1687-00422014-01-01201410.1155/2014/701964701964Novel Simplified Model for Asynchronous Machine with Consideration of Frequency CharacteristicChangchun Cai0Ping Ju1Yuqing Jin2Changzhou Key Laboratory of Photovoltaic System Integration and Production Equipment Technology, Hohai University, No. 200 Jinling Road, Changzhou City, ChinaJiangsu Key Laboratory of Power Transmission & Distribution Equipment Technology, Hohai University, No. 200 Jinling Road, Changzhou City, ChinaCollege of Energy and Electrical Engineering, Hohai University, No. 1 Xikang Road, Nanjing City, ChinaThe frequency characteristic of electric equipment should be considered in the digital simulation of power systems. The traditional asynchronous machine third-order transient model excludes not only the stator transient but also the frequency characteristics, thus decreasing the application sphere of the model and resulting in a large error under some special conditions. Based on the physical equivalent circuit and Park model for asynchronous machines, this study proposes a novel asynchronous third-order transient machine model with consideration of the frequency characteristic. In the new definitions of variables, the voltages behind the reactance are redefined as the linear equation of flux linkage. In this way, the rotor voltage equation is not associated with the derivative terms of frequency. However, the derivative terms of frequency should not always be ignored in the application of the traditional third-order transient model. Compared with the traditional third-order transient model, the novel simplified third-order transient model with consideration of the frequency characteristic is more accurate without increasing the order and complexity. Simulation results show that the novel third-order transient model for the asynchronous machine is suitable and effective and is more accurate than the widely used traditional simplified third-order transient model under some special conditions with drastic frequency fluctuations.http://dx.doi.org/10.1155/2014/701964 |
| spellingShingle | Changchun Cai Ping Ju Yuqing Jin Novel Simplified Model for Asynchronous Machine with Consideration of Frequency Characteristic Journal of Applied Mathematics |
| title | Novel Simplified Model for Asynchronous Machine with Consideration of Frequency Characteristic |
| title_full | Novel Simplified Model for Asynchronous Machine with Consideration of Frequency Characteristic |
| title_fullStr | Novel Simplified Model for Asynchronous Machine with Consideration of Frequency Characteristic |
| title_full_unstemmed | Novel Simplified Model for Asynchronous Machine with Consideration of Frequency Characteristic |
| title_short | Novel Simplified Model for Asynchronous Machine with Consideration of Frequency Characteristic |
| title_sort | novel simplified model for asynchronous machine with consideration of frequency characteristic |
| url | http://dx.doi.org/10.1155/2014/701964 |
| work_keys_str_mv | AT changchuncai novelsimplifiedmodelforasynchronousmachinewithconsiderationoffrequencycharacteristic AT pingju novelsimplifiedmodelforasynchronousmachinewithconsiderationoffrequencycharacteristic AT yuqingjin novelsimplifiedmodelforasynchronousmachinewithconsiderationoffrequencycharacteristic |