Abstract
This work presents the outcome of a comprehensive study that assesses the transient behaviour of two high voltage direct current (HVDC) networks with similar structures but using different converter topologies, termed two-level and half-bridge (HB) modular multilevel converter (MMC). To quantify the impact of converter topology on DC current characteristics a detailed comparative study is undertaken in which the responses of the two HVDC network transients during dc side faults are evaluated. The behaviour of the HVDC systems during a permanent pole-to-pole and pole-to-ground faults are analysed considering a range of fault resistances, fault positions along the line, and operational conditions as a prerequisite. Fast Fourier Transform (FFT) has been conducted analysing di/dt for both converter architecture and fault types taking into consideration sampling frequency of 96 kHz in compliance with IEC-61869 and IEC-61850:9-2 for DC-side voltages and currents.
| Original language | English |
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| Publication status | Published - 19 Apr 2016 |
| Event | 8th IET International Conference on Power Electronics, Machines and Drives - The Hilton Hotel, Glasgow, United Kingdom Duration: 19 Apr 2016 → 21 Apr 2016 |
Conference
| Conference | 8th IET International Conference on Power Electronics, Machines and Drives |
|---|---|
| Abbreviated title | PEMD 2016 |
| Country/Territory | United Kingdom |
| City | Glasgow |
| Period | 19/04/16 → 21/04/16 |
Keywords
- high voltage direct current
- DC fault- analysis
- VSC converter topology
- modular multi-level converter
- IEC-61869
- IEC-61850:9-2