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السجلات المعروضة 81 -- 90 من 134
Low space harmonics cancelation in double-layer fractional slot winding using dual multiphase winding
(
Institute of Electrical and Electronics Engineers Inc.
, 2015 , Article)
One of the main drawbacks of nonoverlapped coils in fractional slot concentrated winding permanent magnet (PM) machines are the high eddy current losses in both rotor core and permanent magnets induced by the asynchronous ...
A single-stage three-phase inverter based on cuk converters for PV applications
(
Institute of Electrical and Electronics Engineers Inc.
, 2014 , Conference Paper)
This paper presents a new three-phase inverter based on the Cuk converter. The main feature of the proposed topology is that the energy storage elements, such as inductors and capacitors, can be reduced in order to improve ...
Bidirectional buck-boost inverter-based HVDC transmission system with AC-side contribution blocking capability during DC-side faults
(
Institute of Electrical and Electronics Engineers Inc.
, 2014 , Article)
Offshore wind energy is now seen as a key contributor for the future renewable energy mix. HVDC technology is among the chief technologies enabling widespread use of offshore wind. Thanks to their numerous advantages, ...
A wind turbine architecture employing a new three port magnetic gear box
(
IEEE Computer Society
, 2012 , Conference Paper)
Mechanical gearboxes are typically employed with doubly-fed induction generator based wind turbines to convert the turbine's low speed mechanical power into high-speed mechanical power to drive the electrical generator. ...
Elimination of reverse recovery effects associated with CoolMOS devices employing current source inverter topology
(
IET
, 2012 , Conference Paper)
MOSFET transistors are continuously being an essential part of power electronic converters due to their low switching losses at high switching frequencies. However, the traditional power MOSFET suffers from a relatively ...
Investigation of inter-line dynamic voltage restorer with virtual impedance injection
(
IEEE
, 2010 , Conference Paper)
The Inter-Line Dynamic Voltage Restorer (IDVR) consists of several voltage source inverters connected to different independent distribution feeders with common dc bus. When one of the inverters compensates for voltage sag ...
High-performance adaptive Perturb and observe MPPT technique for photovoltaic-based microgrids
(
IEEE
, 2011 , Article)
Solar photovoltaic (PV) energy has witnessed double-digit growth in the past decade. The penetration of PV systems as distributed generators in low-voltage grids has also seen significant attention. In addition, the need ...
Multiple-module high-gain high-voltage DCDC transformers for offshore wind energy systems
(
IEEE
, 2011 , Article)
Renewable energy sources, such as offshore wind farms, require high voltage gains in order to interface with power transmission networks. These conversions are normally made using bulky, complex, and costly transformers ...
Effect of current harmonic injection on constant rotor volume multiphase induction machine stators: A comparative study
(
IEEE
, 2012 , Article)
Although torque enhancement in multiphase induction machines using harmonic current injection has been addressed in the literature, a detailed assessment of the effect of this enhancement on the design parameters of ...
Comparative evaluation of four quasi-square wave fed multiphase induction machines
(
IEEE
, 2011 , Conference Paper)
Multiphase winding structures provide induction machines with favorable fault tolerant characteristics. Medium voltage drives have also benefited from the favorable application characteristics of multiphase machines, as ...