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| Content Provider | IET Digital Library |
|---|---|
| Author | Xie, Lijun Yao, Liangzhong Li, Yan Xu, Lie Wang, Zhibing Wei, Chunxia Fan, Chen |
| Abstract | Large-scale wind farms integrated with multi-terminal direct current (MTDC) system decouples the frequency between the wind farms and the receiving end, resulting in weakened frequency regulation ability of the onshore AC grid. Recently a new topology is proposed, called diode rectifier based HVDC, which recouples the wind farm and onshore AC system due to its characteristics, where offshore AC voltage changes with the DC voltage of HVDC system. A coordinated power control strategy for frequency regulation participation is proposed in this paper for offshore wind farms connected with diode-rectifier based high voltage direct current (HVDC) system. Considering the primary frequency and inertia response control, variable power supplementary control is implemented in wind turbines, and a telecommunication-less method of frequency event detection via detection of offshore AC voltage is proposed, avoiding communication delay and communication failure. Simulations using EMTDC/PSCAD show that frequency dip can be accurately detected by the AC voltage of offshore wind farm, and wind farm can quickly compensate active power. |
| Starting Page | 977 |
| Ending Page | 981 |
| Page Count | 5 |
| 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.2018.8597 |
| 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 | Called Diode Rectifier Control of Electric Power System Coordinated Power Control Strategy Diode-rectifer HVDC System Diode-rectifier Based High Voltage Direct Current System Frequency Control Frequency Dip Frequency Event Detection Frequency Regulation Participation HVDC Power Converter HVDC Power Transmission Large-scale Wind Farms Multiterminal Direct Current System Offshore AC Voltage Changes Offshore Installations Offshore Wind Farm Onshore AC Grid Onshore AC System Power And Energy Control Power Control Power Converter Power Generation Control Power Grid Power Supplies to Apparatus Power System Control Primary Frequency Rectifier Voltage Control Weakened Frequency Regulation Ability Wind Power Plant Wind Turbine |
| Content Type | Text |
| Resource Type | Article |
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