Quasi proportional-resonant control for the grid current of hybrid distribution transformer
Hybrid distribution transformer (HDT) has powerful control ability, which is significant for the intelligentisation of the distribution network. A kind of HDT is presented here, the grid current control system of which is emphatic researched. Based on the mathematical model of ideal HDTs, a grid cur...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2018-10-01
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| Series: | The Journal of Engineering |
| Subjects: | |
| Online Access: | https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8742 |
| _version_ | 1818434860927156224 |
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| author | Yang Liang Deliang Liang Yibin Liu Mingkang Zhang Peixin Jia Guanhua Sun |
| author_facet | Yang Liang Deliang Liang Yibin Liu Mingkang Zhang Peixin Jia Guanhua Sun |
| author_sort | Yang Liang |
| collection | DOAJ |
| description | Hybrid distribution transformer (HDT) has powerful control ability, which is significant for the intelligentisation of the distribution network. A kind of HDT is presented here, the grid current control system of which is emphatic researched. Based on the mathematical model of ideal HDTs, a grid current control system is designed with quasi proportional-resonant controller (QPR). Using the characteristics that infinite gain and large bandwidth at the resonant frequency of QPR controller, the grid current system achieve the effects of unit power factor and sinusoidal symmetrical waveform. Tracking control with no static error of grid current was achieved in MATLAB. Compared with the traditional PI control, QPR controller can modulate AC signals in the static coordinate system, rather than rotary coordinate system. So the QPR controller has advantages of lower steady-state error, stronger anti-interference ability, and simpler calculation. Simulation results show that it has good dynamic and steady performance. |
| first_indexed | 2024-12-14T16:43:42Z |
| format | Article |
| id | doaj.art-cb28676341c94376b8041950c148e76b |
| institution | Directory Open Access Journal |
| issn | 2051-3305 |
| language | English |
| last_indexed | 2024-12-14T16:43:42Z |
| publishDate | 2018-10-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Journal of Engineering |
| spelling | doaj.art-cb28676341c94376b8041950c148e76b2022-12-21T22:54:16ZengWileyThe Journal of Engineering2051-33052018-10-0110.1049/joe.2018.8742JOE.2018.8742Quasi proportional-resonant control for the grid current of hybrid distribution transformerYang Liang0Deliang Liang1Yibin Liu2Mingkang Zhang3Peixin Jia4Guanhua Sun5Xi'an Jiaotong UniversityXi'an Jiaotong UniversityXi'an Jiaotong UniversityXi'an Jiaotong UniversityXi'an Jiaotong UniversityXi'an Jiaotong UniversityHybrid distribution transformer (HDT) has powerful control ability, which is significant for the intelligentisation of the distribution network. A kind of HDT is presented here, the grid current control system of which is emphatic researched. Based on the mathematical model of ideal HDTs, a grid current control system is designed with quasi proportional-resonant controller (QPR). Using the characteristics that infinite gain and large bandwidth at the resonant frequency of QPR controller, the grid current system achieve the effects of unit power factor and sinusoidal symmetrical waveform. Tracking control with no static error of grid current was achieved in MATLAB. Compared with the traditional PI control, QPR controller can modulate AC signals in the static coordinate system, rather than rotary coordinate system. So the QPR controller has advantages of lower steady-state error, stronger anti-interference ability, and simpler calculation. Simulation results show that it has good dynamic and steady performance.https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8742PI controlpower gridspower factorelectric current controldistribution networkspower transformerscontrol system synthesisMatlabtracking controlQPR controllerrotary coordinate systemquasiproportional-resonant controlhybrid distribution transformerHDTquasiproportional-resonant controllerPI controlgrid current control system designpower factorsinusoidal symmetrical waveform |
| spellingShingle | Yang Liang Deliang Liang Yibin Liu Mingkang Zhang Peixin Jia Guanhua Sun Quasi proportional-resonant control for the grid current of hybrid distribution transformer The Journal of Engineering PI control power grids power factor electric current control distribution networks power transformers control system synthesis Matlab tracking control QPR controller rotary coordinate system quasiproportional-resonant control hybrid distribution transformer HDT quasiproportional-resonant controller PI control grid current control system design power factor sinusoidal symmetrical waveform |
| title | Quasi proportional-resonant control for the grid current of hybrid distribution transformer |
| title_full | Quasi proportional-resonant control for the grid current of hybrid distribution transformer |
| title_fullStr | Quasi proportional-resonant control for the grid current of hybrid distribution transformer |
| title_full_unstemmed | Quasi proportional-resonant control for the grid current of hybrid distribution transformer |
| title_short | Quasi proportional-resonant control for the grid current of hybrid distribution transformer |
| title_sort | quasi proportional resonant control for the grid current of hybrid distribution transformer |
| topic | PI control power grids power factor electric current control distribution networks power transformers control system synthesis Matlab tracking control QPR controller rotary coordinate system quasiproportional-resonant control hybrid distribution transformer HDT quasiproportional-resonant controller PI control grid current control system design power factor sinusoidal symmetrical waveform |
| url | https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8742 |
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