Results 31 to 40 of about 1,814,391 (304)
Modeling and enhanced control of hybrid full bridge–half bridge MMCs for HVDC grid studies [PDF]
, 2020 Modular multilevel converters (MMCs) are expected to play an important role in future high voltage direct current (HVDC) grids. Moreover, advanced MMC topologies may include various submodule (SM) types. In this sense, the modeling of MMCs is paramount
Forner, Jaume, Vidal-Albalate, Ricardo
core +1 more source
Research on protection adaptability and optimization scheme of VSC/LCC DC parallel hybrid system
AIP Advances, 2023 With the continuous development of high-voltage direct current (HVDC) technology and the relative concentration of power load and power, the HVDC parallel hybrid system will inevitably appear again.
A. Ting Wang +5 more
doaj +1 more source
Impact of Strength and Proximity of Receiving AC Systems on Cascaded LCC-MMC Hybrid HVDC System
IEEE Transactions on Power Delivery, 2021 The cascaded hybrid LCC-MMC inverter is considered as a feasible option to mitigate the commutation failure problem of conventional LCC-HVDC while maintaining bulk power transmission capability. However, the coupling between different types of converters
Yongjie He +4 more
semanticscholar +1 more source
Corona Current Coupling in Bipolar HVDC and Hybrid HVAC/HVDC Overhead Lines [PDF]
IEEE Transactions on Power Delivery, 2018 ISSN:0885 ...
Martin Pfeiffer +2 more
openaire +3 more sources
VERIFICATION OF HYBRID REAL TIME HVDC SIMULATOR IN CHEJU-HAENAM HVDC SYSTEM [PDF]
IFAC Proceedings Volumes, 2006 Abstract In this paper Hybrid Real Time HVDC Simulator for both operator's training and researching in Cheju-Haenam HVDC system is proposed and its performance is verified by RTDS(Real Time Digital Simulator), EMTDC(Electro-Magnetic Transient system for DC), PSS/E(Power System Simulator for Engineering), and experienced scenarios.
B.M. Yang +5 more
openaire +2 more sources
Energies, 2021 Increasing offshore wind farms are rapidly installed and planned. However, this will pose a bottle neck challenge for long-distance transmission as well as inherent variation of their generating power outputs to the existing AC grid. VSC-HVDC links could
Duc Nguyen Huu
doaj +1 more source
A Station-Hybrid HVDC System Structure and Control Strategies for Cross-Seam Power Transmission
IEEE Transactions on Power Systems, 2021 Cross-seam high voltage DC (HVDC) transmission in the United States can provide an efficient and flexible bulk power delivery highway between the interconnections.
Kaiqi Sun +3 more
semanticscholar +1 more source
Applicability analysis of travelling wave protection for the hybrid HVDC system
The Journal of Engineering, 2019 The hybrid high-voltage direct current (HVDC) system, in which the rectifier is made up of the line commutated converter (LCC) and the inverter is composed of the modular multilevel converter (MMC), has quite different fault characteristics from the ...
Shaojie Cheng +3 more
doaj +1 more source
A Systematic Review of Key Challenges in Hybrid HVAC–HVDC Grids
Energies, 2021 The concept of hybrid high-voltage alternating current (HVAC) and high-voltage direct current (HVDC) grid systems brings a massive advantage to reduce AC line loading, increased utilization of network infrastructure, and lower operational costs. However,
Umar Javed +9 more
doaj +1 more source
Lifetime estimation for hybrid HVDC breakers
International Journal of Electrical Power & Energy Systems, 2020 Abstract As an important aspect of breaker reliability analysis, the lifetime of a hybrid high-voltage direct current (HVDC) breaker is estimated in this paper. Based on the equivalent thermal network, the static temperature profiles of the breaker components during normal operation are solved for using an iterative method, and the components ...
A. Pengfei Yu +5 more
openaire +1 more source