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| Content Provider | IET Digital Library |
|---|---|
| Author | Yao, Zhilei Xiao, Lan Guerrero, Josep M. |
| Abstract | An improved control strategy for the three-phase grid-connected inverter with space vector pulse-width modulation (SVPWM) is proposed. When the grid current contains harmonics, the d- and q-axis grid currents will be interacted, and then the waveform quality of the grid current will be poorer. As the reference output voltage cannot directly reflect the change of the reference grid current, the dynamic response of the grid-connected inverter is slow. In order to solve the aforementioned problems, the d- and q-axis grid currents in the decoupled components of the grid current controller can be substituted by the d- and q-axis reference grid currents, respectively. The operating principles of the traditional and proposed control methods are illustrated. Experimental results for a 15-kVA three-phase grid-connected inverter with SVPWM verify the theoretical analysis. Compared with the traditional control strategy, the grid-connected inverter with the improved control strategy has a high waveform quality of the grid current, small ripple power and fast dynamic response. |
| Starting Page | 587 |
| Ending Page | 592 |
| Page Count | 6 |
| ISSN | 17521416 |
| Volume Number | 9 |
| e-ISSN | 17521424 |
| Issue Number | Issue 6, Aug (2015) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-rpg/9/6 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-rpg.2014.0350 |
| Journal | IET Renewable Power Generation |
| Publisher Date | 2015-02-20 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Apparent Power 15 KVA Control of Electric Power System Current Control D-axis Grid Current Dynamic Response Electric Current Control Grid Harmonic Current Harmonics Phase And Gain Control Phase Control Power Grid Power Supply Quality Power System Control Power System Harmonics PWM Invertors Q-axis Grid Current Reference Grid Current Controller Reference Output Voltage Space Vector Pulse-width Modulation SVPWM Three-phase Grid-connected Inverter |
| Content Type | Text |
| Resource Type | Article |
| Subject | Renewable Energy, Sustainability and the Environment |
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