Results 11 to 20 of about 3,905 (208)
Time course of cardiovascular responses to acute sustained handgrip exercise in young physically active men. [PDF]
Physiol RepAbstract We aimed to assess currently unexplained effects of isometric exercise on central hemodynamic, arterial, and cardiac cycle parameters. Twenty‐three young physically active males performed 5‐min forearm sustained exercise at 20% of maximum voluntary contraction. The pulse wave analysis (SphygmoCor) was conducted at baseline (BL) and at 1, 5, 10,
Melnikov VN +7 more
europepmc +2 more sources
Applied Sciences, 2020 This study introduces a coordinated low-voltage ride through (LVRT) control method for permanent magnet synchronous generator (PMSG) wind turbines (WT) interconnected with an energy storage system (ESS).
Chunghun Kim +3 more
doaj +1 more source
Energy Reports, 2022 When the low voltage ride-through(LVRT) method of combining rotor energy storage with a discharging resistance for a wind turbine with permanent magnet synchronous generator(PMSG) is adopted, with the traditional control strategy, there are the ...
Jian Wang +3 more
doaj +1 more source
IET Renewable Power Generation, 2023 As the grid‐connected interface device of wind and photovoltaic power generation, the voltage source converter (VSC) must pass the low voltage ride‐through (LVRT) test. However, existing literature demonstrates that under weak grid conditions, there is a
Huiqiang Sun +6 more
doaj +1 more source
Journal of Modern Power Systems and Clean Energy, 2021 This paper proposes a grid-tied photovoltaic (PV) inverter capable of low-voltage ride through (LVRT), reactive power support, and islanding protection.
Muhammad Talha +2 more
doaj +1 more source
Energies, 2019 The quality of power and current control are the greatest challenges of grid-connected wind farms during abnormal conditions. The negative- and positive-sequence components of the grid currents may be injected into a wind generation system during grid ...
Yassir El Karkri +4 more
doaj +1 more source
Power Quality Improvement and Low Voltage Ride through Capability in Hybrid Wind-PV Farms Grid-Connected Using Dynamic Voltage Restorer [PDF]
, 2018 © 2018 IEEE. Translations and content mining are permitted for academic research only. Personal use is also permitted, but republication/redistribution requires IEEE permission.This paper proposes the application of a dynamic voltage restorer (DVR) to ...
Allaoui, Tayeb +3 more
core +2 more sources
LVRT Control Strategy For DC Microgrids Considering the Characteristics of PV/Storage/Load
Zhongguo dianli, 2019 Low voltage ride-through (LVRT) of grid-connected DC microgrid has been driving academic attentions. Firstly, the structure and operation principle of DC microgrids are developed to obtain the analytical expression of DC bus voltage.
Yan LI +4 more
doaj +1 more source
Energies, 2023 In accordance with South Korea’s recent 2030 Carbon Neutral Plan, an 8GW offshore wind farm is planned for construction in the South-west Sea. Therefore, it is expected that large-scale wind turbines will be installed, and these turbines must operate ...
Byungki Kim +3 more
doaj +1 more source
Power control strategies during voltage sags according to Spanish grid code [PDF]
, 2018 In order to connect any power converters into the grid there are some grid requirements to insure the safe operation of the grid. So, the control of the converters especially during abnormal condition e.g. during voltage sags is
Bakkar, Mostafa +4 more
core +1 more source