Results 1 to 10 of about 1,326 (139)

Optimal Design of Functionally Graded Power Cable Joint Utilizing Silicone Rubber/Carbon Nanotube Composites

open access: yesIEEE Access, 2021
Functionally graded materials (FGMs) used in electrical insulation have spatially inhomogeneous dielectric properties (i.e., permittivity or conductivity), which can be applied to relieve localized electric field (E-field) intensification and improve ...
Yifan Zhang   +8 more
doaj   +1 more source

Research on Peak-shaving Problem of Receiving Power System with Nuclear Power Under Wind Power Grid Connection

open access: yes南方能源建设, 2021
[Introduction] With the continuously increasing of the installed capacity and proportion of wind power and other new energy sources generation, the peak-shaving problem of receiving power system with nuclear power(such as Guangdong Power Grid) in flood ...
LU Siyu   +4 more
doaj   +1 more source

Model parameter identification for scaled-down analogous HVDC transmission lines using broad spectral response analysis

open access: yesEnergy Reports, 2022
Traditional analogous π-shape transmission line models are mainly designed based on the amplitude and phase response characteristics of the distributed-parameter transmission lines at the power frequency.
Jinrui Tang   +4 more
doaj   +1 more source

Analysis of VSC-HVDC support capability for power grids with large-scale renewable energy and multi-infeed HVDC links

open access: yesEnergy Reports, 2023
Henan Power Grid is located in the north of Central China Power Grid. During its energy transition, thermal power units will be decommissioned on a large scale.
Pengxiang Xing   +7 more
doaj   +1 more source

Multi‐vendor interoperability in HVDC grid protection: State‐of‐the‐art and challenges ahead

open access: yesIET Generation, Transmission & Distribution, 2021
Multi‐vendor interoperable HVDC grid protection is key to build large‐scale HVDC grids in a step‐by‐step manner. On the one hand, various protection strategies and technologies have been developed in the past decade to address the challenges associated ...
Mian Wang   +4 more
doaj   +1 more source

Study on pre-charging process and pre-insertion resistors selection of VSC-HVDC system with different MMC topologies

open access: yesThe Journal of Engineering, 2019
Here, the uncontrolled rectification pre-charging characteristics of the VSC-HVDC system with different modular multilevel converter (MMC) topologies such as full-bridge, half-bridge, and hybrid topologies are proposed based on theoretical analysis and ...
Yuxin Lu   +5 more
doaj   +1 more source

A unified distributed hierarchal control of a microgrid operating in islanded and grid connected modes

open access: yesIET Renewable Power Generation, 2023
To guarantee an uninterruptable power supply, a microgrid must be able to operate in both islanded and grid‐connected modes. Hence, it is required to synchronize the voltage phasor of the point of common coupling of the microgrid with the utility grid ...
Muhammad Yasir Ali Khan   +5 more
doaj   +1 more source

Research on coordinated reactive power control strategy of hybrid-HVDC

open access: yesThe 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
doaj   +1 more source

Comparative Analysis of Technical Standards for Offshore Wind Power via VSC-HVDC

open access: yesShanghai Jiaotong Daxue xuebao, 2022
This paper introduces the current situation of domestic and foreign offshore wind power grid-connected via voltage source converter based high voltage direct current(VSC-HVDC) transmission standards, and selects representative standards of offshore wind ...
YU Hao, ZHANG Zhemeng, PENG Sui, ZHANG Zhiqiang, REN Wanxin, LI Canbing
doaj   +1 more source

Accommodating Discharging Power With Consideration of Both EVs and ESs as Commodity Based on a Two-Level Genetic Algorithm

open access: yesIEEE Access, 2019
The emerging and booming of electric vehicles (EVs) and energy storages (ESs) endow power systems extra flexibility thanks to their ES capability. The charging and discharging activities of these facilities can be dispersed to perform demand response and
Tian Mao, Baorong Zhou, Xin Zhang
doaj   +1 more source

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