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| Content Provider | IET Digital Library |
|---|---|
| Author | Pinares, Gustavo Bongiorno, Massimo |
| Abstract | A method to investigate dc-network instabilities in multi-terminal high-voltage DC (HVDC) systems is presented. The method consists of defining subsystems, called in this Letter Z and Y , which can be interpreted as a dc-network impedance matrix and as set of converter admittances, respectively. Through the analysis of the Z and Y terms, it is shown that resonances originated from the system's dc network can be amplified if the converters show a negative dc-side conductance. Moreover, it is also shown that converters located at different terminals can contribute to instability if the resonances to which they are exposed are of the same frequency. The analysis method is applied to a four-terminal HVDC system as an example and, using the theory developed in this Letter, mitigation measures are applied. The results are verified through time-domain simulations. |
| Starting Page | 170 |
| Ending Page | 177 |
| Page Count | 8 |
| ISSN | 17518687 |
| Volume Number | 12 |
| e-ISSN | 17518695 |
| Issue Number | Issue 1, Jan (2018) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/iet-gtd/12/1 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/iet-gtd.2017.0491 |
| Journal | IET Generation, Transmission & Distribution |
| Publisher Date | 2017-08-17 |
| Access Restriction | Open |
| Rights Holder | © The Institution of Engineering and Technology |
| Subject Keyword | Converter Admittances D.C. Transmission Dc-network Impedance Matrix Dc-network Resonance-related Instabilities Electric Admittance Four-terminal HVDC System HVDC Power Converter HVDC Power Transmission Impedance Matrix Mitigation Measures Negative Dc-side Susceptance Voltage-source Converter Voltage-source Converter-based Multiterminal HVDC System Y Term Analysis Z Term Analysis |
| Content Type | Text |
| Resource Type | Article |
| Subject | Control and Systems Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering |
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