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| Content Provider | IET Digital Library |
|---|---|
| Author | Zhou, Huafeng Chen, Jiale Liu, Qixing Hu, Yaping Zhu, Jianhang |
| Abstract | The sub-synchronous torsional interaction (SSTI) behaviour between turbine-generator units and the high-voltage direct current (HVDC) systems has been a vital research content in power systems. In the past, the characteristics of SSTI with line-commutated-converter (LCC)-HVDC have already been well studied. With the development of voltage source converter (VSC)-based HVDC, some researchers have found that different control parameters of the converter have an impact on the electrical damping of the connected synchronous generator system. However, the existing results did not show the specific mechanism of SSTI. In this study, SSTI with VSC-HVDC affected by voltage feed-forward (VVF) compensations in the AC current controllers is investigated. The effects of the asymmetric VVF in both d- and q-axes on electrical damping are paid special attention. First, a general output impedance model of VSC-HVDC concentrated on AC current controllers is developed. Then the influence of compensation factor (kd/q ) and filter bandwidth (α fd/q) on the bandwidth of the converter and the electrical damping is studied. Finally, an SSTI suppression scheme based on the former analysis is given. Simulation studies are carried out in PSCAD/EMTDC, and simulated results validate the analytical results and proposed suppression scheme. |
| Starting Page | 2140 |
| Ending Page | 2145 |
| Page Count | 6 |
| Volume Number | 2017 |
| e-ISSN | 20513305 |
| Issue Number | Issue 13, Jan (2017) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/2017/13 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2017.0708 |
| Journal | The Journal of Engineering |
| Publisher | The Institution of Engineering and Technology |
| Publisher Date | 2017-01-01 |
| Access Restriction | Open |
| Rights License | Creative Commons Attribution-Non Commercial-No Derivs License (http://creativecommons.org/licenses/by-nc-nd/3.0/) |
| Subject Keyword | AC Current Controller Asymmetric VVF Compensation Factor Control of Electric Power System Converter Bandwidth Current Control D.C. Transmission Electric Current Control Electrical Damping Filter Bandwidth General Output Impedance Model High-voltage Direct Current System HVDC Power Converter HVDC Power Transmission LCC-HVDC System Line-commutated-converter Power System Stability Power Transmission Control PSCAD-EMTDC SSTI Behaviour SSTI Suppression Scheme Sub-synchronous Torsional Interaction Synchronous Generator Synchronous Generator System Synchronous Machine Turbine-generator Units TurboGenerator Voltage Control Voltage Feed-forward Compensations Voltage Source Converter Voltage-source Converter VSC-HVDC System |
| Content Type | Text |
| Resource Type | Article |
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