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| Content Provider | IET Digital Library |
|---|---|
| Author | Niu, Lifan Xie, Zhen Yang, Hui Zhang, Xing |
| Abstract | Due to the asymmetry of load, the ageing of transmission line, the asymmetry of power grid voltage and so on, grid-connected converter often appears grid voltage unbalance at the point of common coupling. Especially for some high-power grid-connected converter device, if the unbalanced conditions is ignored, it will produce non-characteristic harmonics, three-phase grid current unbalance and so on that will affect the stable operation of grid-connected converter, even ruin it. Therefore, it is necessary to study the control of grid-connected converter under unbalanced grid voltage. In view of the advantages of model predictive control in high-power converter, the control of grid-connected converter under unbalanced grid voltage based on finite control set model predictive control is studied. The goal is to control the three-phase grid current balance and enhance the stability operation of the grid-connected converter under unbalanced grid voltage. The grid-connected converter is modelled in two-phase stationary (αβ) coordinate system, and the model predictive control of grid-connected converter is deduced under unbalanced grid voltage. Based on the theoretical analysis, the simulation results show the effectiveness of the proposed control strategy. |
| Starting Page | 1129 |
| Ending Page | 1133 |
| Page Count | 5 |
| Volume Number | 2017 |
| e-ISSN | 20513305 |
| Issue Number | Issue 13, Jan (2017) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/2017/13 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2017.0505 |
| Journal | The Journal of Engineering |
| Publisher | The Institution of Engineering and Technology |
| Publisher Date | 2017-01-01 |
| Access Restriction | Open |
| Rights License | Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/) |
| Subject Keyword | Control of Electric Power System Current Control Electric Current Control Finite Control Set Model Predictive Control Grid-connected Converter Control High-power Grid-connected Converter Device Load Asymmetry Noncharacteristic Harmonics Optimal Control Point of Common Coupling Power Converter Power Grid Power Grid Voltage Asymmetry Power Supplies to Apparatus Predictive Control Stability Stability in Control Theory Stability Operation Three-phase Grid Current Balance Control Three-phase Grid Current Unbalance Transmission Line Ageing Two-phase Stationary Coordinate System Unbalanced Grid Voltage Voltage Control Αβ Coordinate System |
| Content Type | Text |
| Resource Type | Article |
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