Results 31 to 40 of about 2,977,913 (296)

Multi‐scenario comprehensive benefit evaluation model of a multi‐energy micro‐grid based on the matter‐element extension model

Energy Science & Engineering, 2021
Integrated energy systems and multi‐energy micro‐grids are complex multi‐agent collaborative optimization projects. According to the operating structure and characteristics of the multi‐energy system, considering the externality, economy and other ...
Hang Liu, Weijie Shen, Xinying He, Bo Zeng, Yingxin Liu, Ming Zeng, Chaoyue Zhao   +6 more
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Examination on the parameter stability region of the VSC control system in VSC-HVDC transmission systems

The Journal of Engineering, 2019
Nowadays, the voltage source converter (VSC)-based high-voltage direct current (HVDC) transmission technology is widely adopted for the integration of renewable power generations.
Long Xu, Guoyun Su, Wenjuan Du, Chen Chen, Bixing Ren, Haifeng Wang   +5 more
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Corona characteristics of conductor with TiO(2) hydrophilic film subjected to DC high voltage

The Journal of Engineering, 2019
Water drops on the surface of conductors influence the ambient electric fields and decrease corona inception voltage. A conductor coated with TiO(2) film was developed to prevent effects of droplets.
Xingming Bian, Yaoyu Lin, Xinan Pi, Tiebing Lu, Feifei Xu, Haibing Li, Yanxiang Ma   +6 more
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Modelling and simulation analysis of MMC‐HVDC system based on transient energy flow

IET Renewable Power Generation, 2023
In the high voltage direct current (HVDC) transmission system composed of modular multilevel converters (MMC), considering the distribution of transient energy flow (TEF) contributes to the transient modelling and fault characteristic analysis when dc ...
Jun Yan, Lixu Chen, Jianzhong Xu, Chengyong Zhao, Xiufang Jia   +4 more
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Research on discharge phenomenon caused by cross‐adsorption of linear insulating fibre and metal dust under DC voltage

High Voltage, 2022
A large amount of metal dust is often generated during production and operation of Gas Insulated Switchgear/Gas‐Insulated Transmission Line, and insulating fibres are very easy to mix in during assembly.
Ruixue Liang, Qi Hu, Heng Liu, Jian Wang, Qingmin Li   +4 more
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Research on transient stability control method for LCC‐HVDC receiving‐end system based on the gradient of dynamic energy

IET Generation, Transmission & Distribution, 2022
A new transient stability control strategy for the Line‐Commutated‐Converter based High‐Voltage‐Direct‐Current (LCC‐HVDC) receiving‐end system based on the gradient of dynamic energy is proposed to deal with this problem.
Jing Ma, Jiaming Zhang, Xucheng Wang, Ruichen Ma, Yaqi Shen   +4 more
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Investigation on sub-synchronous oscillations in DFIG-based transmission system based on improved complex torque coefficients method

The Journal of Engineering, 2019
The complex torque coefficients (CTC) method has been widely adopted to investigate the conventional sub-synchronous oscillation (SSO) issues. However, the application of the CTC method is limited when large-scale wind power generations are integrated ...
Yijun Wang, Wenjuan Du, Chen Chen, Zijing Zhen, Haifeng Wang   +4 more
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Enhanced thermal and mechanical properties by cost-effective carboxylated nanodiamonds in poly (vinyl alcohol)

Nanocomposites, 2018
In this study, the high-energy ball-milled nanodiamonds (MNDs) are carefully treated with low-temperature annealing and mixed acids to obtain carboxylated MNDs (cMNDs). This process not only removes impurities but also grafts oxygen containing functional
Yuansai Zhang, Qingsong Hua, Jian Min Zhang, Yuling Zhao, Hang Yin, Zuoqiang Dai, Lili Zheng, Jie Tang   +7 more
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A BPSO-Based Method for Optimal Voltage Sag Monitor Placement Considering Uncertainties of Transition Resistance

IEEE Access, 2020
This study presents a new approach to the optimal placement of voltage sag monitors considering the uncertainties associated with transition resistance. The influence of transition resistance on the magnitude of voltage sags triggered by symmetrical and ...
Haiwei Jiang, Yonghai Xu, Ziteng Liu, Ning Ma, Wenqing Lu   +4 more
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A novel AC chopper integrated with active measurement of wideband impedance for wind power system

IET Power Electronics, 2023
Large‐scale wind farms are susceptible to oscillations like any other power systems with high penetration of power electronics, whose characteristics of wideband impedance hold the key to resolving this issue.
Yan Shi, Lei Qi, Xiangyu Zhang, Liangtao Zhan, Xiang Cui   +4 more
doaj   +1 more source