Results 21 to 30 of about 1,814,391 (304)

Power Stability Analysis and Evaluation Criteria of Dual-Infeed HVDC with LCC-HVDC and VSC-HVDC

open access: yesApplied Sciences, 2021
This paper analyzes the power stability of the hybrid dual-infeed high-voltage direct-current (HVDC) system containing a line commutated converter-based HVDC (LCC-HVDC) and a voltage source converter-based HVDC (VSC-HVDC).
Xinglong Wu, Zheng Xu, Zheren Zhang
doaj   +1 more source

Single-ended protection method for hybrid HVDC transmission line based on transient voltage characteristic frequency band

open access: yesProtection and Control of Modern Power Systems, 2023
Hybrid high-voltage direct current (HVDC) transmission has the characteristic of long transmission distance, complex corridor environment, and rapid fault evolution of direct current (DC) lines.
Hongchun Shu, Shixin Wang, Shunguang Lei
semanticscholar   +1 more source

Continuous commutation failure suppression strategy in hybrid multi-infeed HVDC transmission system

open access: yes电力工程技术, 2022
For the wide application of high voltage direct current (HVDC) transmission engineering,the continuous commutation failure of line commutated converter HVDC (LCC-HVDC) has a seriously negative impact on the stable operation of the power system. Therefore,
ZHONG Mingming   +4 more
doaj   +1 more source

Adaptive droop control strategy of cascaded hybrid HVDC system

open access: yes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
doaj   +1 more source

Hybrid LCC-AAC HVDC transmission system

open access: yesElectric Power Systems Research, 2021
Abstract A hybrid HVDC transmission system based on a line-commutated converter (LCC) and an alternate arm converter (AAC) is developed in this article. The basic operation principles and control methods of the proposed LCC-AAC hybrid HVDC system are demonstrated following with appropriate system design and parameter selection.
Sun, P   +3 more
openaire   +2 more sources

Review of hybrid HVDC systems combining line communicated converter and voltage source converter

open access: yesInternational Journal of Electrical Power & Energy Systems, 2021
Hybrid HVDC system, which consists of the advantages of line commutated converter (LCC) and voltage source converter (VSC), is an emerging power transmission system. This paper presents a review of four LCC-VSC hybrid HVDC topologies.
Huangqing Xiao   +4 more
semanticscholar   +1 more source

Design of ± 535 kV hybrid high voltage direct current (HVDC) circuit breaker

open access: yesIET Generation, Transmission & Distribution, 2022
This paper proposes a ± 535 kV hybrid high voltage direct current (HVDC) circuit breaker. In this paper, the interruption processes of the main branch, transferring branch, and MOV (metal oxide varistors) branch are studied by PSCAD/EMTDC computer ...
Chenyang Liu   +4 more
doaj   +1 more source

Research on emergency DC power support coordinated control for hybrid multi-infeed HVDC system

open access: yesArchives 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
doaj   +1 more source

Application research on pilot protection method for multi‐terminal hybrid line‐commutated converter/modular multilever converter‐based high voltage DC system

open access: yesIET Generation, Transmission & Distribution, 2021
The multi‐terminal hybrid line commutated converter (LCC)/modular multilevel converter (MMC)‐based high voltage dc (HVDC) has been applied to solve the simultaneous commutation failure problem in East China.
Chenhao Zhang   +6 more
doaj   +1 more source

HVDC Breaker Power Loss Reduction by Bridge-Type Hybrid Breakers

open access: yesEnergies, 2021
Several types of high voltage direct current (HVDC) breakers have been introduced and commercialized. Each of them has advantages and disadvantages. Among them, the hybrid HVDC breaker is highly successful.
Morteza Hesami   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy