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| Content Provider | IET Digital Library |
|---|---|
| Author | Torres, Juan Carlos Gonzalez Damm, Gilney Costan, Valentin Benchaib, Abdelkrim Lagarrigue, Françoise Lamnabhi |
| Abstract | This study investigates the impact of embedded voltage source converter-based high voltage direct current (VSC-HVDC) links on AC grids transient stability. Firstly, using transient energy functions, it is demonstrated that VSC-HVDC links controlled to track constant power references, do not inherently improve transient stability of the surrounding AC grid as an AC line naturally does. Then, a control law using the feedback linearisation technique on a simple but representative power system is derived. The control law highlights and combines the three main actions the VSC-HVDC link can offer to enhance rotor angle stability: fast power reallocation, injection of synchronising power and injection of damping power. The control law is implemented and validated in EMT simulation. It is then shown that an HVDC link can assure the synchronisation of different AC areas even if no AC transmission lines interconnect them. Through another case study, it is shown how the HVDC link can help to share dynamic frequency reserves to not jeopardise the stability of the system. The last example investigates the effect of a DC fault on AC transient stability and how the control can help improving the system response. |
| Starting Page | 3377 |
| Ending Page | 3388 |
| Page Count | 12 |
| ISSN | 17518687 |
| Volume Number | 14 |
| e-ISSN | 17518695 |
| Issue Number | Issue 17, Sep (2020) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-gtd/14/17 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2019.1074 |
| Journal | IET Generation, Transmission & Distribution |
| Publisher Date | 2020-07-01 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | AC Areas AC Grid Transient Stability AC Transient Stability AC Transmission Line Constant Power References Control Law Control of Electric Power System D.C. Transmission Damping Damping Power Embedded Voltage Source Converter-based High Voltage Direct Current Embedded VSC-HVDC Link Fast Power Reallocation Feedback HVDC Power Converter HVDC Power Transmission Linearisation Technique Power And Energy Control Power Converter Power Grid Power Supplies to Apparatus Power System Power System Control Power System Transient Stability Power Transmission Control Reactive Power Control Rotor Angle Stability Rotors Simple But Representative Power System Stability Margins Analysis Surrounding AC Grid Synchronising Power Transient Energy Function Voltage Control Voltage-source Converter VSC-HVDC Link |
| Content Type | Text |
| Resource Type | Article |
| Subject | Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering |
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