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| Content Provider | IET Digital Library |
|---|---|
| Author | Yang, Li Song, Gao Wenhui, Shi Guoqing, He Ping, Wang Zheng |
| Abstract | Micro-grid which connects with the main grid can operate under the grid-connected mode or the islands mode. During the switching process between the two operation modes, if the control strategy is not complete, there will be problems such as the AC bus voltage oscillation and current surge, which will result in the switchover failure. An improved energy storage inverter control method based on operation states tracking is adopted for the optical storage micro-grid using master–slave control, which solves the problem of control variables mutation. Secondly, an improved software phase-locked method based on grid phase state tracking is proposed in an energy storage inverter. The problem of instantaneous mutation of the phase angle is solved by cooperating with the micro-grid operation state control signal during operation mode changes. Through the improvement of the two control strategies above, the transient shock phenomena of the micro-grid voltage and current during the switching process is obviously improved, and the harmonic content of the AC voltage and current is obviously reduced. Finally, a detailed model of optical storage micro-grid is established in MATLAB/Simulink, and the correctness and practicability of the improved control strategy are verified by simulation. |
| Starting Page | 1062 |
| Ending Page | 1067 |
| Page Count | 6 |
| Volume Number | 2019 |
| e-ISSN | 20513305 |
| Issue Number | Issue 16, Mar (2019) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/conferences/cn-adc-2018 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2018.8877 |
| Journal | The Journal of Engineering |
| Publisher | The Institution of Engineering and Technology |
| Publisher Date | 2018-10-23 |
| Access Restriction | Open |
| Rights License | Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/) |
| Subject Keyword | AC Bus Voltage Oscillation Battery-storage Microgrid Control of Electric Power System Control Variables Mutation Distributed Power Generation Energy Storage Grid Phase State Tracking Grid-connected Mode Improved Control Strategy Improved Energy Storage Inverter Control Method Improved Software Phase-locked Method Integrated Control Strategy Invertors Islands Mode Main Grid Microgrid Operation State Control Signal Operation Mode Operation Mode Changes Operation State Tracking Optical Storage Microgrid Phase Locked Loop Power Converter Power Generation Control Power Grid Power Supplies to Apparatus Power System Control Smooth Switching Switching Process |
| Content Type | Text |
| Resource Type | Article |
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