A Method of Impedance Reconstruction Based DC-link Oscillation Suppression for Urban Rail Transit Traction System
Due to the mismatch of main circuit parameters and the negative impedance characteristics of inverter-motor system under specific operating conditions, urban rail transit traction system is prone to DC-link voltage oscillation. In order to solve this problem, this paper establishes a characteristic...
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| Format: | Article |
| Language: | zho |
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Editorial Office of Control and Information Technology
2021-01-01
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| Series: | Kongzhi Yu Xinxi Jishu |
| Subjects: | |
| Online Access: | http://ctet.csrzic.com/thesisDetails#10.13889/j.issn.2096-5427.2021.02.008 |
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| author | LI Tingting SUN Weixin LIU Chuan PU Junkai GE Xinglai |
| author_facet | LI Tingting SUN Weixin LIU Chuan PU Junkai GE Xinglai |
| author_sort | LI Tingting |
| collection | DOAJ |
| description | Due to the mismatch of main circuit parameters and the negative impedance characteristics of inverter-motor system under specific operating conditions, urban rail transit traction system is prone to DC-link voltage oscillation. In order to solve this problem, this paper establishes a characteristic equation model of traction system, and analyzes the influence of DC-link filter parameters on system stability. For inverter-motor drive system, it proposes an oscillation suppression method based on impedance reconstruction. By compensating d axis and q axis reference voltage signal of controller, negative impedance characteristic of the inverter-motor system is improved so that the system is stable. Simulation and hardware-in-the-loop experiment results show that the suppression strategy can effectively suppress the oscillation and improve the stability of system. |
| format | Article |
| id | doaj-art-009c19c8319a480f9be8d2057541dc57 |
| institution | Kabale University |
| issn | 2096-5427 |
| language | zho |
| publishDate | 2021-01-01 |
| publisher | Editorial Office of Control and Information Technology |
| record_format | Article |
| series | Kongzhi Yu Xinxi Jishu |
| spelling | doaj-art-009c19c8319a480f9be8d2057541dc572025-08-25T06:49:58ZzhoEditorial Office of Control and Information TechnologyKongzhi Yu Xinxi Jishu2096-54272021-01-0138495582321653A Method of Impedance Reconstruction Based DC-link Oscillation Suppression for Urban Rail Transit Traction SystemLI TingtingSUN WeixinLIU ChuanPU JunkaiGE XinglaiDue to the mismatch of main circuit parameters and the negative impedance characteristics of inverter-motor system under specific operating conditions, urban rail transit traction system is prone to DC-link voltage oscillation. In order to solve this problem, this paper establishes a characteristic equation model of traction system, and analyzes the influence of DC-link filter parameters on system stability. For inverter-motor drive system, it proposes an oscillation suppression method based on impedance reconstruction. By compensating d axis and q axis reference voltage signal of controller, negative impedance characteristic of the inverter-motor system is improved so that the system is stable. Simulation and hardware-in-the-loop experiment results show that the suppression strategy can effectively suppress the oscillation and improve the stability of system.http://ctet.csrzic.com/thesisDetails#10.13889/j.issn.2096-5427.2021.02.008impedance reconstructionoscillation suppressiontraction systemvoltage instability |
| spellingShingle | LI Tingting SUN Weixin LIU Chuan PU Junkai GE Xinglai A Method of Impedance Reconstruction Based DC-link Oscillation Suppression for Urban Rail Transit Traction System Kongzhi Yu Xinxi Jishu impedance reconstruction oscillation suppression traction system voltage instability |
| title | A Method of Impedance Reconstruction Based DC-link Oscillation Suppression for Urban Rail Transit Traction System |
| title_full | A Method of Impedance Reconstruction Based DC-link Oscillation Suppression for Urban Rail Transit Traction System |
| title_fullStr | A Method of Impedance Reconstruction Based DC-link Oscillation Suppression for Urban Rail Transit Traction System |
| title_full_unstemmed | A Method of Impedance Reconstruction Based DC-link Oscillation Suppression for Urban Rail Transit Traction System |
| title_short | A Method of Impedance Reconstruction Based DC-link Oscillation Suppression for Urban Rail Transit Traction System |
| title_sort | method of impedance reconstruction based dc link oscillation suppression for urban rail transit traction system |
| topic | impedance reconstruction oscillation suppression traction system voltage instability |
| url | http://ctet.csrzic.com/thesisDetails#10.13889/j.issn.2096-5427.2021.02.008 |
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