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| Content Provider | IET Digital Library |
|---|---|
| Author | Zeng, Xueyang Liu, Tianqi Wang, Shuliang Dong, Yuqing Li, Baohong Chen, Zhe |
| Abstract | With the continuous increase of renewable energy generation and high voltage direct current (HVDC) power transmission, the system inertia is declining, thus resulting in greater risks of frequency instability. To solve this issue, a dc-link inertia control is firstly proposed for a point-to-point modular multilevel converter based HVDC (MMC-HVDC) link, which enables the MMC-HVDC system to provide emulated inertia support by employing the electrostatic energy stored in the dc capacitors. Moreover, in order to maintain reasonable submodule capacitor size as well as provide more emulated inertia support, a virtual capacitor control for MMC-HVDC connected an offshore wind farm (OWF) is proposed. With the virtual capacitor control, the OWF is able to provide a large capacity virtual capacitor in dc side of MMC-HVDC link and supply desired emulated inertia support for onshore power system by utilising the offshore wind turbines’ rotor rotational kinetic energy. Furthermore, a procedure for selecting the appropriate virtual capacitor control parameters is proposed. Finally, the performance of the proposed coordinated control is researched in PSCAD/EMTDC, and the simulation results show that the onshore power system inertia is effectively improved with the coordinated control. |
| Starting Page | 673 |
| Ending Page | 683 |
| Page Count | 11 |
| ISSN | 17521416 |
| Volume Number | 14 |
| e-ISSN | 17521424 |
| Issue Number | Issue 5, Apr (2020) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-rpg/14/5 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-rpg.2019.0505 |
| Journal | IET Renewable Power Generation |
| Publisher Date | 2019-11-01 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Appropriate Virtual Capacitor Control Parameter Capacity Virtual Capacitor Control of Electric Power System Coordinated Control Strategy D.C. Transmission Dc Capacitor Dc-link Inertia Control Emulated Inertia Support High Voltage Direct Current Power Transmission HVDC Link HVDC Power Converter HVDC Power Transmission MMC-HVDC System Offshore Installations Offshore Wind Farm Offshore Wind Turbines Onshore Power System Inertia Point-to-point Modular Multilevel Converter Power Converter Power Generation Control Power Grid Power Supplies to Apparatus Power System Control Power Transmission Control Reasonable Submodule Capacitor Size Renewable Energy Generation Wind Power Plant Wind Turbine |
| Content Type | Text |
| Resource Type | Article |
| Subject | Renewable Energy, Sustainability and the Environment |
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