Results 31 to 40 of about 23,865 (219)
A Novel Approach to Control Multi Terminal Direct Current Grids under Different Operation Conditions [PDF]
Journal of Electrical and Electronics Engineering, 2023 Frequency control plays a crucial role in maintaining stability and power equilibrium in Alternative Current (AC) systems, ensuring a balanced distribution between generation and demand.
SEDAGHATI Reza
doaj
Zhongguo dianli, 2020 Thyristor electronic board (TE board) of HVDC converter valve is an important equipment of HVDC converter valve. In the process of operation and maintenance, TE board burned out many times, resulting in the shutdown of the converter valve pole, which ...
Zhen WANG, Kun LIU, Wei JU
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Modelling of HVDC breakers for HVDC grid simulations
13th IET International Conference on AC and DC Power Transmission (ACDC 2017), 2017 This paper deals with the modelling of high-voltage direct current (HVDC) breakers in PSCAD. The models are aimed at HVDC grid simulation and are kept as simple as possible.
Augustin, Tim +2 more
openaire +3 more sources
Capacitor Energy Variations in MMC Using Harmonics Injection
Power Electronics and Drives, 2020 Modular multilevel converter (MMC) is considered as a good technology for high-voltage direct current (HVDC) transmission systems. It can generate a good quality staircase output voltage waveform due to the cascaded connection of large number of ...
Hafeez Kamran +3 more
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IEEE Access, 2023 The black-box arc model is a tool that facilitates efficient research based on empirical studies in breaker design and analysis. However, its application has primarily focused on the design of ACCBs, with only a few instances of its implementation in the
Kyu-Hoon Park +2 more
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Research on coordinated reactive power control strategy of hybrid-HVDC
The Journal of Engineering, 2019 Based on the hybrid HVDC transmission system, which is composed by line-commutated converter (LCC) in parallel with voltage source converter (VSC), a coordinated reactive power control strategy of hybrid-HVDC in both steady and transient states is ...
Ying Huang, Chunhua Li, Tao Liu
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Switching overvoltages and polarity reversal in presence of HVDC circuit breakers
, 2023 The recent development of High Voltage Direct Current circuit breakers (HVDC CBs) prototypes may introduce many potential advantages for HVDC links in terms of flexibility and possible meshing.
Spezie R. +8 more
core +1 more source
Heat Transfer Process of HVDC Submarine Cables under Transient Load
Zhongguo dianli, 2020 High-voltage direct current (HVDC) XLPE submarine cable is an important carrier for long-distance and large-capacity power transmission. The HVDC submarine cable load affects temperature distribution, while the temperature has an important influence on ...
Zhengbo LIANG +5 more
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A Comprehensive Review of Fault‐Current Limiter Technologies for Smart and Resilient Power Systems
Energy Science &Engineering, EarlyView.This review compares superconducting, solid‐state, and hybrid fault‐current limiters (FCLs) for modern alternating current, direct current, and hybrid grids. It shows that optimal FCL selection depends on fault characteristics, network configuration, voltage level, protection coordination, and resilience requirements rather than on a universally ...
Abdelrahman Farghly +5 more
wiley +1 more source
Optimizing Task Orchestration for Distributed Real-Time Electromagnetic Transient Simulation
IEEE AccessTransient simulation in power engineering is crucial as it models the dynamic behavior of power systems during sudden events like faults or short circuits. Electromagnetic transient simulations involve multiple coordinated tasks.
Qi Guo +8 more
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