Amina Hasan Abedin - Academia.edu (original) (raw)

Uploads

Papers by Amina Hasan Abedin

Research paper thumbnail of Improvement of input side currents of a three phase rectifier combining active and passive filters

Journal of Electrical Engg., IEB, Vol. EE33, 2006

Research paper thumbnail of A single phase SEPIC AC-DC Converter with improved power factor and input current THD

2016 9th International Conference on Electrical and Computer Engineering (ICECE), 2016

Research paper thumbnail of Two switch three phase Ćuk regulated rectifier

2016 IEEE International Conference on Power System Technology (POWERCON), 2016

Research paper thumbnail of Output regulated one-switch three-phase boost and boost-buck (SEPIC) PFC rectifiers

2016 IEEE International Conference on Power System Technology (POWERCON), 2016

Research paper thumbnail of Three phase three switch modular Vienna, Boost and SEPIC rectifiers

2016 2nd International Conference on Control, Instrumentation, Energy & Communication (CIEC), 2016

Research paper thumbnail of A single phase buck-boost AC-AC converter with low input current THD and high input power factor

International Aegean Conference on Electrical Machines and Power Electronics and Electromotion, Joint Conference, 2011

ABSTRACT Two new topologies of Buck-Boost single-phase ac-ac conversion are proposed. In one of t... more ABSTRACT Two new topologies of Buck-Boost single-phase ac-ac conversion are proposed. In one of the circuits a bi-directional switch with a single buck-boost inductor is used, whereas, in the other circuit a bi-directional switch with two separate buck-boost inductors are used. Both the circuits operate in buck-boost mode separately for positive and negative cycle of the supply. As a result the input current remains almost in phase with the supply voltage without any additional sensors and control circuit. It runs in free running mode. The input current becomes almost sinusoidal by the use of small input filter. Input current THD is very low and the input power factor is very high. The converters like other switch mode converters have variable efficiency with change in duty cycle. High efficiency is possible within a range of duty cycle.

Research paper thumbnail of A single phase AC-AC boost converter with improved input power factor and THD

International Aegean Conference on Electrical Machines and Power Electronics and Electromotion, Joint Conference, 2011

Research paper thumbnail of Boost and Buck topology based single phase AC-DC converters with low THD and high power factor

2011 IEEE 33rd International Telecommunications Energy Conference (INTELEC), 2011

Two topologies of single-phase Buck and Boost AC-DC converters are presented. Instead of using a ... more Two topologies of single-phase Buck and Boost AC-DC converters are presented. Instead of using a single phase rectifier followed by a boost dc-dc converter, or using a bridge rectifier with two diodes and two switches, the rectifier's input is chopped at high frequency during positive and negative cycles by a bi-directional switch in each of the Boost and Buck conversion

Research paper thumbnail of Magnetic resonance angiography- an advanced technique in MRI using flow imaging

2007 IEEE/NIH Life Science Systems and Applications Workshop, 2007

Magnetic resonance angiography (MRA) produces images of flowing blood. The intensity in these ima... more Magnetic resonance angiography (MRA) produces images of flowing blood. The intensity in these images is proportional to the velocity of the flow. It produces an image, which distinguishes between static and flowing blood. There are three general types of MRA, time-of-flight, phase contrast angiography, and contrast enhanced angiography.

Research paper thumbnail of Input switched single phase buck and buck-boost AC-DC converter with improved power quality

2012 7th International Conference on Electrical and Computer Engineering, 2012

Research paper thumbnail of 3 phase switch mode AC Voltage Controller with Input Current Shaping

2012 International Conference on Informatics, Electronics & Vision (ICIEV), 2012

Research paper thumbnail of Input AC side switched active filtered high performance three phase cuk rectification with energy recovery snubber

IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society, 2012

Research paper thumbnail of True three-phase bidirectional switch based AC-AC Buck-Boost converter topology

2013 IEEE Jordan Conference on Applied Electrical Engineering and Computing Technologies (AEECT), 2013

Research paper thumbnail of Ćuk topology based single switch single phase high power quality AC voltage controller

2012 IEEE Industry Applications Society Annual Meeting, 2012

Research paper thumbnail of 3 phase switch mode AC voltage controller with low THD and high power factor

2012 7th International Conference on Electrical and Computer Engineering, 2012

Research paper thumbnail of Input switched single phase high performance bridgeless AC-DC Zeta converter

2012 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), 2012

ABSTRACT

Research paper thumbnail of Input switched single phase high performance bridgeless CûK AC-DC converter

2012 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), 2012

A new single phase high performance input side switched AC-DC Cuk converter is proposed. A bidire... more A new single phase high performance input side switched AC-DC Cuk converter is proposed. A bidirectional switch is formed by a unidirectional semiconductor switch with proper positioning of the bridgeless diodes at the input ac side for power conversion for both positive and negative half cycle. Because of the high frequency input side switching, the power factor of the circuit is inherently corrected and it requires a small filter to make the input current near sinusoidal with limited THD. The significant improvement in THD makes the circuit a good choice in applications needing AC-DC conversion with power conditioning. The circuit exhibits such performances with variable loads at constant frequency switching with no additional control circuits. The efficiency of the circuit is also satisfactory. Analysis and simulation results of the circuit are obtained by using software simulation. The main advantage of this new AC-DC converter is its superior power quality.

Research paper thumbnail of Improvement of input side currents of a three phase rectifier combining active and passive filters

Journal of Electrical Engg., IEB, Vol. EE33, 2006

Research paper thumbnail of A single phase SEPIC AC-DC Converter with improved power factor and input current THD

2016 9th International Conference on Electrical and Computer Engineering (ICECE), 2016

Research paper thumbnail of Two switch three phase Ćuk regulated rectifier

2016 IEEE International Conference on Power System Technology (POWERCON), 2016

Research paper thumbnail of Output regulated one-switch three-phase boost and boost-buck (SEPIC) PFC rectifiers

2016 IEEE International Conference on Power System Technology (POWERCON), 2016

Research paper thumbnail of Three phase three switch modular Vienna, Boost and SEPIC rectifiers

2016 2nd International Conference on Control, Instrumentation, Energy & Communication (CIEC), 2016

Research paper thumbnail of A single phase buck-boost AC-AC converter with low input current THD and high input power factor

International Aegean Conference on Electrical Machines and Power Electronics and Electromotion, Joint Conference, 2011

ABSTRACT Two new topologies of Buck-Boost single-phase ac-ac conversion are proposed. In one of t... more ABSTRACT Two new topologies of Buck-Boost single-phase ac-ac conversion are proposed. In one of the circuits a bi-directional switch with a single buck-boost inductor is used, whereas, in the other circuit a bi-directional switch with two separate buck-boost inductors are used. Both the circuits operate in buck-boost mode separately for positive and negative cycle of the supply. As a result the input current remains almost in phase with the supply voltage without any additional sensors and control circuit. It runs in free running mode. The input current becomes almost sinusoidal by the use of small input filter. Input current THD is very low and the input power factor is very high. The converters like other switch mode converters have variable efficiency with change in duty cycle. High efficiency is possible within a range of duty cycle.

Research paper thumbnail of A single phase AC-AC boost converter with improved input power factor and THD

International Aegean Conference on Electrical Machines and Power Electronics and Electromotion, Joint Conference, 2011

Research paper thumbnail of Boost and Buck topology based single phase AC-DC converters with low THD and high power factor

2011 IEEE 33rd International Telecommunications Energy Conference (INTELEC), 2011

Two topologies of single-phase Buck and Boost AC-DC converters are presented. Instead of using a ... more Two topologies of single-phase Buck and Boost AC-DC converters are presented. Instead of using a single phase rectifier followed by a boost dc-dc converter, or using a bridge rectifier with two diodes and two switches, the rectifier's input is chopped at high frequency during positive and negative cycles by a bi-directional switch in each of the Boost and Buck conversion

Research paper thumbnail of Magnetic resonance angiography- an advanced technique in MRI using flow imaging

2007 IEEE/NIH Life Science Systems and Applications Workshop, 2007

Magnetic resonance angiography (MRA) produces images of flowing blood. The intensity in these ima... more Magnetic resonance angiography (MRA) produces images of flowing blood. The intensity in these images is proportional to the velocity of the flow. It produces an image, which distinguishes between static and flowing blood. There are three general types of MRA, time-of-flight, phase contrast angiography, and contrast enhanced angiography.

Research paper thumbnail of Input switched single phase buck and buck-boost AC-DC converter with improved power quality

2012 7th International Conference on Electrical and Computer Engineering, 2012

Research paper thumbnail of 3 phase switch mode AC Voltage Controller with Input Current Shaping

2012 International Conference on Informatics, Electronics & Vision (ICIEV), 2012

Research paper thumbnail of Input AC side switched active filtered high performance three phase cuk rectification with energy recovery snubber

IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society, 2012

Research paper thumbnail of True three-phase bidirectional switch based AC-AC Buck-Boost converter topology

2013 IEEE Jordan Conference on Applied Electrical Engineering and Computing Technologies (AEECT), 2013

Research paper thumbnail of Ćuk topology based single switch single phase high power quality AC voltage controller

2012 IEEE Industry Applications Society Annual Meeting, 2012

Research paper thumbnail of 3 phase switch mode AC voltage controller with low THD and high power factor

2012 7th International Conference on Electrical and Computer Engineering, 2012

Research paper thumbnail of Input switched single phase high performance bridgeless AC-DC Zeta converter

2012 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), 2012

ABSTRACT

Research paper thumbnail of Input switched single phase high performance bridgeless CûK AC-DC converter

2012 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES), 2012

A new single phase high performance input side switched AC-DC Cuk converter is proposed. A bidire... more A new single phase high performance input side switched AC-DC Cuk converter is proposed. A bidirectional switch is formed by a unidirectional semiconductor switch with proper positioning of the bridgeless diodes at the input ac side for power conversion for both positive and negative half cycle. Because of the high frequency input side switching, the power factor of the circuit is inherently corrected and it requires a small filter to make the input current near sinusoidal with limited THD. The significant improvement in THD makes the circuit a good choice in applications needing AC-DC conversion with power conditioning. The circuit exhibits such performances with variable loads at constant frequency switching with no additional control circuits. The efficiency of the circuit is also satisfactory. Analysis and simulation results of the circuit are obtained by using software simulation. The main advantage of this new AC-DC converter is its superior power quality.