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| Content Provider | IET Digital Library |
|---|---|
| Author | Li, Rui Sun, Lijing Yang, Linze Gu, Hanwen Wang, Yueqi Jiao, Zaibin |
| Abstract | The DC distribution network is becoming the basic supporting component of the urban distribution network. A variety of power supplies, loads, and energy storage devices can be directly integrated into a DC distribution network, which can improve the economical and energy efficiency of the power system. This study proposes two charging strategies, two-stage charging and one-by-one charging, to make the converter start up safely or quickly return to the normal operation state after the fault clearance. Owing to the existence of numerous DC capacitors in voltage source converters, the reactive power consumption in the start-up process needs to be explicitly calculated. Mathematical expressions of reactive power requirements for different charging strategies are investigated in detail, from where it can be seen that the current-limiting resistance can significantly affect the reactive power and the entire charging time. Simulation results show that the AC voltage can be seriously affected by the oscillation of the reactive power, which will lead to voltage drop and waveform distortion in mode switching. |
| Starting Page | 6 |
| Ending Page | 12 |
| Page Count | 7 |
| Volume Number | 2020 |
| e-ISSN | 20513305 |
| Issue Number | Issue 1, Jan (2020) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/2020/1 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2018.5263 |
| Journal | The Journal of Engineering |
| Publisher | The Institution of Engineering and Technology |
| Publisher Date | 2019-10-17 |
| Access Restriction | Open |
| Rights License | Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/) |
| Subject Keyword | Basic Supporting Component Control of Electric Power System Converter Start DC Distribution Network DC Distribution System Different Charging Strategy Distributed Power Generation Distribution Network Economical Energy Efficiency Energy Storage Energy Storage Device Entire Charging Time Fault Clearance Fault-restart Strategy Numerous DC Capacitor Power And Energy Control Power Converter Power Distribution Control Power Grid Power Supplies Power Supplies to Apparatus Power Supply Quality Power System Power System Control Reactive Power Reactive Power Analysis Reactive Power Consumption Reactive Power Control Reactive Power Requirements Start-up Process Urban Distribution Network Voltage Control Voltage Source Converter |
| Content Type | Text |
| Resource Type | Article |
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