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Now showing items 131-137 of 137
A single-stage three-phase DC/AC inverter based on Cuk converter for PV application
(
IEEE
, 2013 , Conference Paper)
This paper presents a new three-phase dc-ac inverter based on the basic Cuk converter. The main feature of the proposed topology is the fact that the energy storage elements as inductors and capacitors values can be reduced ...
Magnetic gearbox with an electric power output port and fixed speed ratio for wind energy applications
(
IEEE
, 2012 , Conference Paper)
Mechanical gearboxes are typically employed with doubly-fed induction generator-based wind turbines. The main drawback of this solution is the gearbox's reliability and maintenance. Using magnetic gearbox in conjunction ...
A coaxial magnetic gearbox with magnetic levitation capabilities
(
IEEEIEEE
, 2012 , Conference Paper)
Magnetic gearboxes (MGBs) are now a powerful alternative to their conventional mechanical counterparts in terms of reduced maintenance requirements, improved reliability, tolerance to mechanical inaccuracies, and inherent ...
Switched mode power supplies for charge-up, discharge and balancing dc-link capacitors of diode-clamped five-level inverter
(
IET
, 2010 , Article)
Inductor switch mode power supplies (SMPS) operated in a discontinuous inductor current mode are used to balance the dc-link capacitor voltages of a diode-clamped five-level inverter. The SMPS concept is extended to charge ...
Control of doubly-fed induction machine storage system for constant charging/discharging grid power using artificial neural network
(
IET
, 2012 , Conference Paper)
A large-capacity low-speed flywheel energy storage system based on a doubly-fed induction machine (DFIM) basically consists of a wound-rotor induction machine, and a back-to-back converter for rotor excitation. It has been ...
A power control strategy for flywheel doubly-fed induction machine storage system using artificial neural network
(
Elsevier Ltd
, 2013 , Article)
A large-capacity low-speed flywheel energy storage system (FESS) based on a doubly-fed induction machine (DFIM) consists of a wound-rotor induction machine and a back-to-back converter rated at 30-35% of the machine power ...
Effects of environmental and climatic conditions on PV efficiency in qatar
(
European Association for the Development of Renewable Energy, Environment and Power Quality (EA4EPQ)
, 2013 , Article)
The sensitivity of various solar photovoltaic technologies towards dust, temperature and relative humidity is investigated for Qatar’s environment. Results obtained show that dust accumulation has the great effect on ...