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Socioeconomic, demographic, housing and health conditions of Qatari women by status of marriage and implications for family polices
(
Hamad bin Khalifa University Press (HBKU Press)
, 2015 , Article)
This study addressed the problems and issues facing the Qatari family in the wake of rapid socio-economic development. The study explored housing conditions, health conditions and economic conditions of Qatari women as ...
A five-phase linear induction machine with planar modular winding
(
Institute of Electrical and Electronics Engineers Inc.
, 2015 , Conference Paper)
Linear induction motors (LIMs) have become a competitive alternative in electric traction. Three-phase LIM commonly uses double layer overlapping distributed windings. Although this winding configuration results in more ...
A reduced switch-count single-phase SEPIC-based inverter
(
Institute of Electrical and Electronics Engineers Inc.
, 2015 , Conference Paper)
Recently, reduced switch-count converters have garnered exceptional attention in power electronic systems due to the diversified advantages such as low cost, low weight and volume, and high reliability offered by them. In ...
A nine-arm modular multilevel converter (9A-MMC) for six-phase medium voltage motor drives
(
Institute of Electrical and Electronics Engineers Inc.
, 2015 , Conference Paper)
Dual three-phase (asymmetrical six-phase) induction motors have received significant attention in high power medium voltage drive applications. Typically, two three-phase voltage source converters are needed to feed such ...
A grid-connected HVDC shunt tap based on series-input parallel-output DC-AC multi-module 2-level voltage source converters
(
Institute of Electrical and Electronics Engineers Inc.
, 2015 , Conference Paper)
Tapping-off a small amount of power from an HVDC transmission line to a three-phase local grid can be achieved by using shunt or series HVDC taps. This paper proposes a new grid-connected HVDC shunt tap. The proposed tap ...
Cogging torque reduction of axial magnetic gearbox using pole pairing technique
(
Institute of Electrical and Electronics Engineers Inc.
, 2015 , Conference Paper)
Magnetic gearbox (MGB) becomes an attractive research topic in mechanical transmission as it offers significant advantages over mechanical gears such as contactless power transfer, high gear ratios, inherent overload ...
Enhancement of the extracted maximum power of PV array during partial shading using switched PV-based system
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Institute of Electrical and Electronics Engineers Inc.
, 2015 , Conference Paper)
This paper proposes a switched PV approach to enhance the extracted maximum power from PV array during partial shading condition. The proposed system is simple and cost effective. However, it may provide lower power ...
The transition arm multilevel converter - A concept for medium and high voltage DC-DC transformers
(
Institute of Electrical and Electronics Engineers Inc.
, 2015 , Conference Paper)
This paper proposes a dc/ac converter topology where each phase leg comprises a conventional series switch valve in one arm and a series connection of half-bridge chopper cells in the other arm. Operation with trapezoidal ...
A grid-connected switched PV array
(
Institute of Electrical and Electronics Engineers Inc.
, 2015 , Conference Paper)
In this paper, a grid-connected version of the switched PV array will be presented. The PV array consists of n parallel-connected strings and m series-connected modules per string, i.e. an array with a dimension of (m - ...
Quasi two-level operation of modular multilevel converter for use in a high-power DC transformer with DC fault isolation capability
(
Institute of Electrical and Electronics Engineers Inc.
, 2015 , Article)
DC fault protection is one challenge impeding the development of multiterminal dc grids. The absence of manufacturing and operational standards has led to many point-to-point HVDC links built at different voltage levels, ...