Results 21 to 30 of about 344 (172)

Modelling and analysis of LCC‐HVDC converter station for harmonic coupling of AC/DC power grid during geomagnetic storm

IET Power Electronics, 2023
In this paper, the problem of harmonic coupling between the converter transformer and the converter under the action of geomagnetically induced current (GIC) is proposed to be investigated.
Yang Peihong, Han Xiaoyong, Jiang Hui, Shi Xizhi, Zhang Zilei, Liu Chunming, Liu Lianguang   +6 more
doaj   +1 more source

Research on Serial VSC-LCC Hybrid HVdc Control Strategy and Filter Design Scheme

Energies, 2020
This paper investigated the characteristics of a novel type of hybrid high voltage direct current (HVdc) converter, which is composed by line commutated converter series with voltage source converter.
Fan Cheng, Lijun Xie, Zhibing Wang
doaj   +1 more source

Research on shutdown control strategy of hybrid DC system

Energy Reports, 2022
The hybrid DC system combined with line commutated converter (LCC) and hybrid modular multilevel converter (HY-MMC), which is named LCC-HY-MMC, has technical advantages and economy. Shutdown is a key problem that any DC system needs to face.
Feng Xu, Xiaoming Huang, Yi Lu, Peng Qiu, Chengyu Lu, Chao Ding   +5 more
doaj   +1 more source

Research on the Power Coordinate Control Strategy between a CLCC-HVDC and a VSC-HVDC during the AC Fault Period

Energies
The underlying cause of commutation failures in traditional line-commutated converter (LCC) high-voltage direct-current (HVDC) transmission technology lies in the sensitivity of the thyristor devices, which are prone to turning off, thereby restoring the
Jingbo Zhao, Ke Xu, Wenbo Li
doaj   +1 more source

Advances in Position‐Momentum Entanglement: A Versatile Tool for Quantum Technologies

Laser &Photonics Reviews, EarlyView.
Position–momentum entanglement constitutes a high‐dimensional continuous‐variable resource in quantum optics. Recent advances in its generation, characterization, and control are reviewed, with emphasis on spontaneous parametric down‐conversion and modern measurement techniques.
Satyajeet Patil, Rajshree Swarnkar, Jonas L. Moos, Sebastian Töpfer, Sergio Tovar‐Pérez, Jorge Fuenzalida, Markus Gräfe   +6 more
wiley   +1 more source

Innovative Matrix-Type AC-AC Solid-State Transformer Eliminating Ripple Power with Double-Grid Frequency

Energies
Single-phase solid-state transformers (SSTs) have the advantages of a compact structure, higher reliability, and multiple functions, and have been widely studied. However, bulky energy storage elements and inherent ripple power with double-grid frequency
Hui Wang, Tianshi Yu, Manlin Wang, Guangfu Ning   +3 more
doaj   +1 more source

Space‐Efficient Logical Qubit Architecture with a Bus for Magic State Consumption

Advanced Quantum Technologies, EarlyView.
This paper proposes a logical qubit architecture, considering the consumption of magic states. By constructing the patch to the magic state using the repetition code and data qubits using the surface code, the proposed architecture minimizes the number of qubits, referred to as the space cost.
Yujin Kang, Youshin Chung, Jun Heo
wiley   +1 more source

Comparative Analysis on Small-Signal Stability of Multi-Infeed VSC HVDC System With Different Reactive Power Control Strategies

IEEE Access, 2019
Voltage Source Converter based High Voltage Direct Current (VSC HVDC) technology is used more and more in modern power systems. Consequently, in the ac network, an increasing number of converters are appearing in mutual electrical proximity, thus forming
Goran Grdenic, Marko Delimar, Jef Beerten   +2 more
doaj   +1 more source

Multiterminal High‐Voltage Direct Current Projects: A Comprehensive Assessment and Future Prospects

High Voltage, EarlyView.
ABSTRACT Multiterminal high‐voltage direct current (MT‐HVDC) systems are an important part of modern power systems, addressing the need for bulk power delivery and efficient renewable energy integration. This paper provides a comprehensive overview of recent advances in MT‐HVDC technology, including launched projects and ongoing initiatives.
Mohammad Hossein Mousavi, Hassan Moradi, Kumars Rouzbehi, Vijay K. Sood   +3 more
wiley   +1 more source

Research on the characteristics of multi-infeed DC system with hybrid commutation converter suppressing successive commutation failure

International Journal of Electrical Power & Energy Systems
In view of the problem of successive commutation failure in multi-infeed direct current systems, this paper investigates the commutation characteristics of hybrid commutation convert technology and its application in mitigating successive commutation ...
Jian Cui, Zhichang Yuan, Kangsheng Cui, Long Zhang, Pengbo Zhao, Zhanqing Yu, Xiaoguang Wei, Xuejiao Han   +7 more
doaj   +1 more source