Results 11 to 20 of about 4,429,470 (297)

Transient stability enhancement control strategy for droop-controlled voltage source converter

open access: yesEnergy Reports, 2022
The droop-controlled voltage source converter (VSC) can support the voltage at the point of common coupling (PCC) and realize frequency adjustment by simulating the swing equation of the synchronous generator (SG) and has a higher stability margin in the
Jilei Wang   +4 more
doaj   +1 more source

A virtual resistor design method based on voltage harmonic amplification factor for active damper used in DFIG system

open access: yesEnergy Reports, 2020
When grid impedance cannot be ignored, high-frequency harmonic amplification often occurs when Doubly-Fed Induction Generator (DFIG) generation system is connected to a non-ideal grid with background noise.
Fei Li   +5 more
doaj   +1 more source

Energy access for sustainable development [PDF]

open access: yes, 2019
It is abundantly clear that adequate, reliable and clean energy services are vital for the achievement of many of the Sustainable Development Goals (SDGs).
Ben Hagan, E, Kammen, D, Mulugetta, Y
core   +2 more sources

Non‐contact and anti‐interference diagnosis of SiC MOSFET module bond wire faults for EV wireless charging device

open access: yesIET Power Electronics, 2023
SiC MOSFET modules are widely used for bidirectional wireless charging of electric vehicles. However, prolonged use can result in bond wire faults, leading to reliability issues. To address this problem, a non‐contact bond wire monitoring method that can
Mingyao Ma   +4 more
doaj   +1 more source

Vector control strategy of a T-type three-level converter driving a switched reluctance motor

open access: yesChinese Journal of Electrical Engineering, 2019
A novel 12 voltage vector control strategy for switched reluctance motors (SRM) with a T-type three-level converter is proposed in this study. Based on a causal analysis of torque ripple under the control of conventional six voltage vectors, six new ...
Mingyao Ma   +4 more
doaj   +1 more source

A Zero-Sequence Steerable CBPWM Strategy for Eliminating Zero-Sequence Current of Dual-Inverter Fed Open-End Winding Transformer Based PV Grid-Tied System With Common DC Bus

open access: yesIEEE Access, 2020
Aiming at the issue of zero-sequence current (ZSC) in the dual-inverter fed open-end winding transformer (OEWT-DI) based photovoltaic (PV) grid-tied system with common DC bus, a carrier-based pulse width modulation (CBPWM) strategy with steerable zero ...
Baoji Wang, Xing Zhang, Renxian Cao
doaj   +1 more source

The Challenge of Energy Access in Africa [PDF]

open access: yes, 2018
There are multiple dimensions to the problem of energy access in Sub-Saharan Africa, where large shares of population lack a reliable supply of electricity and affordable modern cooking fuels: from insufficient power generation capacity, to difficulties in managing energy infrastructure and attract investments in the sector, to challenges in serving ...
Manfred Hafner   +2 more
openaire   +2 more sources

Energy efficiency in heterogeneous wireless access networks [PDF]

open access: yes, 2013
In this article, we bring forward the important aspect of energy savings in wireless access networks. We specifically focus on the energy saving opportunities in the recently evolving heterogeneous networks (HetNets), both Single- RAT and Multi-RAT ...
Dianati, Mehrdad   +3 more
core   +1 more source

Capacity per Unit-Energy of Gaussian Random Many-Access Channels [PDF]

open access: yes, 2020
We consider a Gaussian multiple-access channel with random user activity where the total number of users $\ell_n$ and the average number of active users $k_n$ may be unbounded.
Koch, Tobias, Ravi, Jithin
core   +2 more sources

The Sustainability of Decentralised Renewable Energy Projects in Developing Countries: Learning Lessons from Zambia

open access: yesEnergies, 2021
Decentralised renewable energy (RE) systems such as solar PV mini-grids (MG) are considered to be a cornerstone for the strategic achievement of the UN’s energy access goals in the developing world.
Susann Stritzke, Prem Jain
doaj   +1 more source

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