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| Content Provider | IET Digital Library |
|---|---|
| Author | Dai, Zhiyong Lin, Hui Yin, Hang Qiu, Yanan |
| Abstract | As an important ancillary service for smart grid, voltage support has the capability to improve the grid condition when grid voltage unbalanced fault occurs. Several solutions, taking into account not only the root mean square voltage, but also the shape of the voltage fault, have been proposed. In particular, the control scheme proposed in this study introduces two contributions: a novel reference generator for voltage support and a new current tracking controller. Taking into account of the shape of the grid voltage, this reference generator has the capacity to increase the positive sequence fundamental voltage magnitude and decrease the negative sequence fundamental voltage magnitude, which improves the grid condition when unbalanced fault and voltage sags occur. Compared with other works, phase locked loop is eliminated in this generator which simplifies the structure of the controller. On the basis of output regulation theory, a simple-structure current tracking controller is proposed, which has a zero steady error under arbitrary order (or their combination) grid voltage harmonic disturbance. Simulations and experiments have verified the proposed control scheme. |
| Starting Page | 1377 |
| Ending Page | 1385 |
| Page Count | 9 |
| ISSN | 17554535 |
| Volume Number | 8 |
| e-ISSN | 17554543 |
| Issue Number | Issue 8, Aug (2015) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-pel/8/8 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-pel.2014.0618 |
| Journal | IET Power Electronics |
| Publisher Date | 2015-04-14 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Ancillary Service Control of Electric Power System Current Control Electric Current Control Grid Harmonic Voltage Disturbance Harmonics Interpolation And Function Approximation Mean Square Error Method Numerical Analysis Phase Locked Loop Power Generation Fault Power Supply Quality Power System Control Power System Harmonics Reference Generator Root Mean Square Voltage Simple Structure Current Tracking Controller Smart Grid Smart Power Grid Unbalanced Grid Fault Uutput Regulation Voltage Control Voltage Fault Voltage Sag Voltage Support Control |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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