Results 21 to 30 of about 14,367,683 (357)

Safe Operation Area of Energy-Storage-Free Dynamic Voltage Restorer

Zhongguo dianli, 2022
Energy-storage-free dynamic voltage restorer (DVR) is a common device used to solve voltage sag problems in engineering, but its actual operation is limited by the parameters of application scenarios.
Mingxing ZHU, Xuan LU, Huaying ZHANG, Qing WANG   +3 more
doaj   +1 more source

Grid Integration of Offshore Wind Power: Standards, Control, Power Quality and Transmission

IEEE Open Journal of Power Electronics
Offshore wind is expected to be a major player in the global efforts toward decarbonization, leading to exceptional changes in modern power systems. Understanding the impacts and capabilities of the relatively new and uniquely positioned assets in grids ...
Dan Wu, Gab-Su Seo, Lie Xu, Chi Su, Lukasz Kocewiak, Yin Sun, Zian Qin   +6 more
semanticscholar   +1 more source

Grid integrated renewable DG systems: A review of power quality challenges and state‐of‐the‐art mitigation techniques

International Journal of Energy Research, 2019
Increased energy demands due to rapid industrialization, environmental concerns with fossil fuel–based generation, diminishing fossil energy resources, transmission network congestion, and technical performance deterioration are the motivations behind ...
Mohit Bajaj, A. Singh
semanticscholar   +1 more source

Contribution of Airplane Engine Emissions on the Local Air Quality around Stuttgart Airport during and after COVID-19 Lockdown Measures

Atmosphere, 2022
Air quality investigations at airports have shown that aircrafts cause a significant increase in air pollution at and around the vicinity of the airport, which can cause adverse effects on human health.
Abdul Samad, Kathryn Arango, Ioannis Chourdakis, Ulrich Vogt   +3 more
doaj   +1 more source

Measurement Based Linear and Nonlinear Time Invariant Representations for High Voltage Inductive Transformer Frequency Response up to 10 kHz

IEEE Access
This paper presents the details of the development, evaluation process, and results of linear and nonlinear time-invariant models used to represent the frequency response of inductive high-voltage instrument transformers.
Imanka Dewayalage, Duane A. Robinson, Sean Elphick, Sarath Perera   +3 more
doaj   +1 more source

Impact of Multiple Grid-Connected Solar PV Inverters on Harmonics in the High-Frequency Range

Energies
In recent years, integration of solar photovoltaic (PV) systems into distribution networks has been increasing rapidly, as it has become the most promising renewable energy source (RES) in the transition of power generation from centralised to ...
Kasun Peiris, Sean Elphick, Jason David, Duane Robinson   +3 more
doaj   +1 more source

The Mountainous and Plain Areas on the Northeastern Margin of the Qaidam Basin Contrast Study on Raindrop Spectrum Characteristics

Gaoyuan qixiang, 2022
Based on the rain drop size distribution （DSD） observation data at different altitudes of Zongwulong mountain on the northeast edge of Qaidam Basin from July to September 2020， the contribution of different particle size raindrop microphysical parameters，
Wang PENG, Qiong LI, Jiahua WEI, Zhen QIAO, Weiwen SHEN, Wenwen BAI, Julong HE, Changxian QI   +7 more
doaj   +1 more source

Characterisation of Harmonic Resonance Phenomenon of Multi-Parallel PV Inverter Systems: Modelling and Analysis

Energies
Solar PV inverters require output filters to reduce unwanted harmonics in their output, where LCL filters are a more economical choice than larger inductance-only filters. A drawback of these filters is that they can introduce power quality disturbances,
Kasun Peiris, Sean Elphick, Jason David, Duane Robinson   +3 more
doaj   +1 more source

Power Quality Control of Smart Hybrid AC/DC Microgrids: An Overview

IEEE Access, 2019
Today, conventional power systems are evolving to smart grids, which encompass clusters of AC/DC microgrids, interfaced through power electronics converters.
F. Nejabatkhah, Y. Li, Hao Tian
semanticscholar   +1 more source

Patient‐Level Barriers and Facilitators to Inpatient Physical Therapy in Adolescents and Young Adults With a Hematological Malignancy: A Qualitative Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Despite their increased risk for functional impairment resulting from cancer and its treatments, few adolescents and young adults (AYAs) with a hematological malignancy receive the recommended or therapeutic dose of exercise per week during inpatient hospitalizations.
Jennifer A. Kelleher, Jennifer L. Bernstein, Katia M. Crisler, Julia K. Herriott, Kimberly L. Klages, Robin E. Norris, Mariann L. Strenk, Sarah E. Bills, Meghan E. McGrady   +8 more
wiley   +1 more source