Results 1 to 10 of about 525,367 (180)

Day-ahead allocation of operation reserve in composite power systems with large-scale centralized wind farms [PDF]

Journal of Modern Power Systems and Clean Energy, 2016
This paper focuses on the day-ahead allocation of operation reserve considering wind power prediction error and network transmission constraints in a composite power system. A two-level model that solves the allocation problem is presented.
Jianxue Wang, Ahmed Faheem Zobaa, Chengchen Huang, Chen Chen   +3 more
doaj   +3 more sources

Mixed Aleatory-epistemic Uncertainty Modeling of Wind Power Forecast Errors in Operation Reliability Evaluation of Power Systems

Journal of Modern Power Systems and Clean Energy, 2022
As the share of wind power in power systems continues to increase, the limited predictability of wind power generation brings serious potential risks to power system reliability.
Jinfeng Ding, Kaigui Xie, Bo Hu, Changzheng Shao, Tao Niu, Chunyan Li, Congcong Pan   +6 more
doaj   +1 more source

Stochastic Steady-State Security Assessment for Power System Operation by Chance Constrained Optimal Power Flow-Based Load Shedding

Frontiers in Energy Research, 2022
The operational uncertainty of the power system is significantly increased by the high penetration of renewable energy and diversification of load behavior, which have aroused the novel research on stochastic steady-state security assessment (SSSA ...
Xinyu Zhou, Yingying Jiang, Chen Yang, Dan Xu, Junjie Tang, Kaigui Xie   +5 more
doaj   +1 more source

Research on joint optimization model and algorithm of multi‐area generation and reserve with considering its availability

IET Generation, Transmission & Distribution, 2022
The reserve sharing amongst the interconnected power systems will facilitate the improvements on their anti‐disturbance capability and operating economy.
Dan Xu, Fang Liang, Qian Cheng, Jingyang Zhou, Junjie Tang   +4 more
doaj   +1 more source

A GaN-based wireless power and information transmission method using Dual-frequency Programmed Harmonic Modulation [PDF]

, 2020
Information transmission is often required in power transfer to implement control. In this paper, a Dual-Frequency Programmed Harmonic Modulation (DFPHM) method is proposed to transfer two frequencies carrying power and information with the single ...
Deng, Wei, Jin, Nan, Li, Yuegong, Snášel, Václav, Tang, Houjun, Wu, Jie   +5 more
core   +1 more source

Parameter identification of Preisach model based on velocity-controlled particle swarm optimization method

AIP Advances, 2021
The Preisach model is widely used to simulate the magnetic performance of transformers and motors in industrial applications. However, its parameter identification problem is still a complicated task.
Long Chen, Qiongyang Yi, Tong Ben, Zeyu Zhang, Youhua Wang   +4 more
doaj   +1 more source

Cold sintering process for fabrication of a superhydrophobic ZnO–polytetrafluoroethylene (PTFE) ceramic composite

Journal of Advanced Ceramics, 2023
Composite coatings or films with polytetrafluoroethylene (PTFE) are typically utilized to offer superhydrophobic surfaces. However, the superhydrophobic surfaces usually have limited durability and require complicated fabrication methods.
Xuetong Zhao, Yang Yang, Li Cheng, Jing Guo, Shenglin Kang, Yuchen Li, Xilin Wang, Lijun Yang, Ruijin Liao   +8 more
doaj   +1 more source

Seismic reliability of electric power transmission systems [PDF]

, 1995
Electric power transmission systems are networks of nodes (stations) connected by lines (power transmission lines), dedicated to the production, transformation and distribution of electric power to users. The network contains many seismically fragile elements, the stations being composed of slender steel-ceramic members, and is a complex system because
VANZI, Ivo, GIANNINI R, PINTO P. E.
openaire   +3 more sources

Molecular pyrolysis process and gas production characteristics of 3‐element mixed insulation oil under thermal fault

High Voltage, 2022
Mixed insulation oil is considered as a desired substitute for traditional mineral oil. A novel 3‐element mixed insulation oil has been developed in our previous works, whose parameters satisfy the mineral oil standard (IEC 60296:2012).
Dawei Feng, Ge Chen, Xiaoyu Yan, Jian Hao, Ruijin Liao   +4 more
doaj   +1 more source

Hybrid Carrier Frequency Modulation Based on Rotor Position to Reduce Sideband Vibro-Acoustics in PMSM Used by Electric Vehicles

World Electric Vehicle Journal, 2021
In the permanent magnet synchronous motor (PMSM) drive system, the unwilling and ear-piercing vibro-acoustics caused by high-frequency sideband harmonics becomes unacceptable in electric vehicle applications.
Zizhen Qiu, Yong Chen, Xiaozhe Lin, Haiquan Cheng, Yang Kang, Xu Liu   +5 more
doaj   +1 more source