Bidirectional buck-boost inverter-based HVDC transmission system with AC-side contribution blocking capability during DC-side faults
Author | Elserougi, A. A. |
Author | Massoud, Ahmed |
Author | Abdel-Khalik, A.S. |
Author | Ahmed, S. |
Available date | 2022-03-23T07:01:05Z |
Publication Date | 2014 |
Publication Name | IEEE Transactions on Power Delivery |
Resource | Scopus |
Identifier | http://dx.doi.org/10.1109/TPWRD.2014.2308274 |
Abstract | Offshore wind energy is now seen as a key contributor for the future renewable energy mix. HVDC technology is among the chief technologies enabling widespread use of offshore wind. Thanks to their numerous advantages, voltage-source converter-based-HVDC (VSC-HVDC) systems are expected to be the technology of choice. Unfortunately, most of VSCs are defenseless against dc-side faults, such as two-level VSCs, and half-bridge modular multilevel converters. This paper proposes the buck-boost inverter-based-HVDC system (BBI-HVDC) as a means to overcome the limitations of the classical VSC-HVDC systems. The proposed configuration does not only provide sinusoidal three-phase voltage, but also provides complete blocking capability of ac-side contributions during a dc-side fault. The latter is achieved by simply disabling the gating signals to the switches upon fault detection. The performance of the proposed system is illustrated during normal conditions, ac-side faults, and dc-side faults. A simulation case study comparing the performance of the conventional HVDC converters with the proposed system during dc-side faults is conducted. The simulation results reveal the promising performance under normal operation as well as a significant decrease in the dc fault current due to the ac-side contribution blocking capability of the BBI-HVDC system during dc-side faults. |
Sponsor | Qatar National Research Fund |
Language | en |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Subject | Fault detection Power converters Wind power Blocking capability Buck-boost Discharge currents HVDC transmission system Modular multilevel converters Off-shore wind energy Renewable energies Three-phase voltages HVDC power transmission |
Type | Article |
Pagination | 1249-1261 |
Issue Number | 3 |
Volume Number | 29 |
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Electrical Engineering [2616 items ]