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Wind Turbine System based Virtual Synchronous Generator Control for Microgrid Frequency Regulation [PDF]

E3S Web of Conferences, 2021
The power system is dominated by the renewable energy resources since last two decades. The main cause behind this enormous deployment of RES is to combat the global warming and to decrease dependency on fossil fuels.
Rehman Haseeb Ur, Yan Xiangwu, Jan Mishkat Ullah, Abdelbaky Mohamed Abdelkarim, Iqbal Sheeraz, Egamnazarova Tamara, Ali Rizvi Syed Asad Abbas   +6 more
doaj   +1 more source

Calibration Methods for Junction Temperature Measurement of High Power IGBT Modules

Zhongguo dianli, 2021
The accuracy junction temperature measurement is of great significance for condition monitoring and reliability assessment of power IGBT devices. The junction temperature measurement method using saturation voltage drop at small current is the most ...
Jie CHEN, Erping DENG, Zixuan ZHAO, Xiaoliang YING, Yongzhang HUANG   +4 more
doaj   +1 more source

A Bilayer High-Temperature Dielectric Film with Superior Breakdown Strength and Energy Storage Density

Nano-Micro Letters, 2023
Highlights A bilayer dielectric film is prepared via coating boron nitride nanosheets (BNNSs) by solution casting on the surface of polyethylene terephthalate (PET) film. The BNNS layer acts as the efficient barrier layer to suppress the charge injection,
Jiang-Bo Ping, Qi-Kun Feng, Yong-Xin Zhang, Xin-Jie Wang, Lei Huang, Shao-Long Zhong, Zhi-Min Dang   +6 more
doaj   +1 more source

Correlating the Interfacial Polar-Phase Structure to the Local Chemistry in Ferroelectric Polymer Nanocomposites by Combined Scanning Probe Microscopy

Nano-Micro Letters, 2022
Highlights A strategy that combines multi-mode scanning probe microscopy-based electrical characterization and nano-infrared spectroscopy is developed. A series of samples with different coupling agents and nanoparticles are characterized to unveil the ...
Jiajie Liang, Shaojie Wang, Zhen Luo, Jing Fu, Jun Hu, Jinliang He, Qi Li   +6 more
doaj   +1 more source

Assessment of Material Dislocation Damage by Nonlinear Ultrasound [PDF]

MATEC Web of Conferences, 2020
Under harsh environment or during service, the mechanical properties of materials or structure will deteriorate. Most of the simulations exhibit the phenomenon of nonlinearity by introducing the actual small defects, without considering dislocation.
Zhan Zaifu, Wang Shen, Huang Songling, Zheng Yang, Wang Fuping, Zhao Wei   +5 more
doaj   +1 more source

Polymer/molecular semiconductor all-organic composites for high-temperature dielectric energy storage

Nature Communications, 2020
Dielectric polymers are widely used in electrostatic energy storage but suffer from low energy density and efficiency at elevated temperatures. Here, the authors show that all-organic composites containing high-electron-affinity molecular semiconductors ...
Chao Yuan, Yao Zhou, Yujie Zhu, Jiajie Liang, Shaojie Wang, Simin Peng, Yushu Li, Sang Cheng, Mingcong Yang, Jun Hu, Bo Zhang, Rong Zeng, Jinliang He, Qi Li   +13 more
doaj   +1 more source

Analysis on Interactive Influences among Multiple APFs Connected to Weak-structured Power System

Zhongguo dianli, 2020
When multiple active power filters (APF) are incorporated into the regional distribution network, there are complex negative interaction effects among the control circuits, resulting in the decline of APF compensation performance and harm to the ...
He WANG, Yujia LI, Zhongdong YIN, Zhangming WANG, Haisen ZHAO   +4 more
doaj   +1 more source

Influence of frequency on the surface discharge characteristics of PEEK under positive repetitive square voltage

High Voltage, 2020
In this study, the surface discharge current pulses of polyetheretherketone (PEEK) material under positive repetitive square voltage in a nitrogen atmosphere are measured.
Zhuodong Yang, Xuebao Li, Xiangrui Meng, Xiangrui Meng, Zhibin Zhao, Pengyu Fu, Bin Zhai, Bin Zhai, Xiang Cui   +8 more
doaj   +1 more source

Tri‐layer low‐carbon distributed optimization of integrated energy systems based on hybrid games under stochastic scenarios

IET Generation, Transmission & Distribution, 2023
The low‐carbon development of integrated energy systems is achieved via the sharing of multiple energy interactions by park‐level IES (PIES).However, coordinating profit distribution conflicts among complex interactive stakeholders in stochastic ...
Ziyi Yue, Huazhi Liu, Yonggang Li, Yuyao Zhong, Jiachen Yao, Yuxuan Li   +5 more
doaj   +1 more source

Nuclear applications in manned space station [PDF]

, 1972
The zirconium hydride reactor, coupled to a thermo-electric or Brayton conversion system, and the Pu 238 isotope/Brayton system, are considered to be the viable nuclear candidates for the modular space station electrical power system.
Brooksbank, W. A., Jr., Sieren, G. J.
core   +2 more sources