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| Content Provider | IET Digital Library |
|---|---|
| Author | Beerten, Jef D'arco, Salvatore Suul, Jon Are |
| Abstract | State-of-the-art time-domain models of power cables account for the frequency dependency of physical parameters to enable accurate transient simulations of high-voltage transmission schemes. Owing to their formulation, these models cannot be directly converted into a state-space form as required for small-signal eigenvalue analysis. Thus, dc cables are commonly represented in high-voltage direct current (HVDC) power system stability studies by cascaded pi-section equivalents that neglect the frequency-dependent effects. This study demonstrates how the conventional cascaded pi-section model is unable to accurately represent the damping characteristic of the cable and how this can lead to incorrect stability assessments. Furthermore, an alternative model consisting of cascaded pi-sections with multiple parallel branches is explored, which allows for a state-space representation while accounting for the frequency dependency of the cable parameters. The performance of the proposed model is benchmarked against state-of-the-art cable models both in the frequency domain and in the time domain. Finally, the study provides a comparative example of the impact of the cable modelling on the small-signal dynamics of a point-to-point voltage-source converter (VSC) HVDC transmission scheme. |
| Starting Page | 1370 |
| Ending Page | 1381 |
| Page Count | 12 |
| ISSN | 17518687 |
| Volume Number | 10 |
| e-ISSN | 17518695 |
| Issue Number | Issue 6, Apr (2016) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-gtd/10/6 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2015.0868 |
| Journal | IET Generation, Transmission & Distribution |
| Publisher Date | 2016-04-21 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Cascaded Pi-section Equivalents D.C. Transmission Damping Characteristic Eigen Values And Eigen Function Eigenvalue Analysis Frequency Domain Frequency-dependent Cable Modelling High-voltage Direct Current System High-voltage Transmission Scheme HVDC Power Converter HVDC Power Transmission Linear Algebra Multiple Parallel Branches Numerical Analysis Physical Parameter Point-to-point Voltage-source Converter HVDC Transmission Scheme Power Cables Power System Control Power System Stability Small-signal Stability Analysis State-Space Representation Time-domain Model Transient Simulations |
| Content Type | Text |
| Resource Type | Article |
| Subject | Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering |
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