Results 1 to 10 of about 32,780 (214)
HVDC (High Voltage Direct Current) Transmission System: A Review Paper [PDF]
Gyancity Journal of Engineering and Technology, 2018 Back in the early days of electricity supply, AC (alternating current) was adopted for power transmission because it could be stepped up or down as needed by transformers and because it could be interrupted more easily than DC (direct current). High-voltage AC grids evolved as an efficient way to connect existing islands of distribution grids and large
Kumar, Abhishek +1 more
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High voltage direct current (HVDC) transmission: Future expectation for Pakistan
CSEE Journal of Power and Energy Systems, 2019 An HVDC transmission system for bulk power transfer over longer distance offers numerous advantages over an alternating current (AC) transmission system, such as direct integration of networks operating at different frequencies, comparatively low line ...
Kamran Hafeez, Shahid A. Khan
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Accurate optical fiber current transducer for high-voltage direct current (HVDC) transmission
Instrumentation Science & Technology, 2022 Accurate optical fiber current transducer based on the Faraday magneto-optical effect is described for high voltage direct current (HVDC) transmission. The transducer may be used to measure DC and high-order harmonic currents in a ± 800 kV DC transmission field.
Liu, Haifeng +5 more
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High voltage direct current system-based generation and transmission expansion planning considering reactive power management of AC and DC stations. [PDF]
Sci RepThis study presents a planning approach that considers the simultaneous expansion of generating and transmission systems, taking into account the location and sizing of generation units, AC transmission lines, and high-voltage direct-current (HVDC ...
Akbari E +4 more
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Experimental study on fault ride-through capability of VSC-based HVDC transmission system [PDF]
Archives of Electrical Engineering, 2021 For voltage-source-converter based high-voltage-direct-current (VSC-HVDC) transmission systems, fault ride-through (FRT) capability is a very important grid requirement in order to enhance its operational availability under an alternating current (AC ...
Ngo Minh Khoa +2 more
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Sensors, 2022 With the recent development in power electronic devices, HVDC (High Voltage Direct Current) systems have been recognized as the most prominent solution to transmit electric power economically. Today, several HVDC projects have been implemented physically.
Adeel Ahmed +8 more
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Adaptive droop control strategy of cascaded hybrid HVDC system
电力工程技术, 2022 In this paper,the control characteristic of cascaded hybrid high voltage direct current (HVDC) system is studied. The influence mechanism of modular multilevel converter (MMC) inverters to the whole hybrid HVDC are investigated,and the complete voltage ...
ZENG Rui +3 more
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Journal of Modern Power Systems and Clean Energy, 2023 Generalized short circuit ratio (gSCR) for grid strength assessment of multi-infeed high-voltage direct current (MIDC) systems is a rigorous theoretical extension of the traditional SCR, which enables SCR to be extended to MIDC systems.
Guanzhong Wang +4 more
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Research on emergency DC power support coordinated control for hybrid multi-infeed HVDC system
Archives of Electrical Engineering, 2020 Based on the respective characteristics of line-commutated converter high-voltage direct current (LCC-HVDC) and voltage-source converter high voltage direct cur- rent (VSC-HVDC), two additional emergency DC power support (EDCPS) controllers are designed,
Congshan Li +3 more
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IET Power Electronics, 2023 It is very important to obtain high reliability in the high‐voltage direct current (HVDC) system operation because of extremely high and huge power capacity.
Chi‐Hwan Bae +2 more
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