A Multi-Input Bridgeless Resonant AC-DC Converter for Electromagnetic Energy Harvesting

This document proposes a multi-input bridgeless resonant AC-DC converter to efficiently harvest electromagnetic energy from multiple low-voltage generators and condition the output power. The converter uses an LC resonant network to step up the low alternating voltages from each generator before rectification. Its resonant operation enhances efficiency and allows for high frequency switching and miniaturization. Output impedance can be adjusted through resonance impedance matching and pulse-frequency modulation control. Simulation and hardware results validate the converter's ability to harvest energy from multiple low-voltage electromagnetic generators.

Education

A Multi-Input Bridgeless Resonant AC-DC Converter for
Electromagnetic Energy Harvesting
Presented by
IIS TECHNOLOGIES
No: 40, C-Block,First Floor,HIET Campus,
North Parade Road,St.Thomas Mount,
Chennai, Tamil Nadu 600016.
Landline:044 4263 7391,mob:9952077540.
Email:info@iistechnologies.in,
Web:www.iistechnologies.in
www.iistechnologies.in

ABSTRACT
• Flapping electromagnetic-reed generators are investigated to harvest wind energy, even
at low cut-off wind speeds.
• Power electronic interfaces are intended to address ac-dc conversion and power
conditioning for single- or multiple-channel systems.
• However, the generated voltage of each generator reed at low wind speed is usually
below the threshold voltage of power electronic semiconductor devices, increasing the
difficulty and inefficiency of rectification, particularly at relatively low output powers.
• This manuscript proposes a multi-input bridgeless resonant ac-dc converter to achieve
ac-dc conversion, step up voltage and match optimal impedance for a multi-channel
electromagnetic energy harvesting system.
• Alternating voltage of each generator is stepped up through the switching LC network
and then rectified by a freewheeling diode. Its resonant operation enhances efficiency
and enables miniaturization through high frequency switching.
• The optimal electrical impedance can be adjusted through resonance impedance
matching and pulse-frequency-modulation (PFM) control
www.iistechnologies.in

TOOLS AND SOFTWARE USED:
• MP LAB
• ORCAD/PSPICE
• MATLAB/SIMULINK
www.iistechnologies.in

OUTPUT
• HARDWARE
• SIMULATION
www.iistechnologies.in

Contact
IIS TECHNOLOGIES
No: 40, C-Block,First Floor,HIET Campus,
North Parade Road,St.Thomas Mount,
Chennai, Tamil Nadu 600016.
Landline:044 4263 7391,mob:9952077540.
Email:info@iistechnologies.in,
Web:www.iistechnologies.in
www.iistechnologies.in

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Project list 2019-2020

ASOKA TECHNOLOGIES (B.TECH/M.TECH ELECTRICAL PROJECTS USING MATLAB/SIMULINK) WE OFFER ACADEMIC MATLAB SIMULATION PROJECTS FOR 1. ELECTRICAL AND ELECTRONICS ENGINEERING [EEE] 2. POWER ELECTRONICS AND DRIVES [PED] 3. POWER SYSTEMS [PS]….etc We will develop your OWN IDEAS and your IEEE Papers with extension if necessary and also we give guidance for publishing papers… For Further Details Call Us @ 0-9347143789/9949240245 For Abstracts of IEEE papers and for any Queries mail to: asokatechnologies(gmail) and also visit asokatechnologies(blogspot)

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Bridgeless PFC-Modified SEPIC Rectifier With Extended Gain for Universal Inpu...

This document presents a bridgeless PFC-modified SEPIC rectifier topology designed to operate in discontinuous conduction mode for universal input voltage applications. The proposed topology aims to achieve near unity power factor and low total harmonic distortion of the input current. It provides advantages like zero-current turn-on of power switches and simple control circuitry. The performance is compared to a modified full-bridge SEPIC rectifier in terms of efficiency, total harmonic distortion, and power factor. Simulation and hardware results are presented.

Analysis of Dual-Carrier Modulator for Bidirectional Non inverting Buck–Boost...

This document analyzes a dual-carrier modulator for a bidirectional non-inverting buck-boost converter. The modulator can create switching sequences for both converter legs without knowing the operating mode or power flow direction. It receives a control signal from a current controller and a triangular carrier to generate two duty cycles, allowing tight control of the inductor current across the entire operating range. Simulation and hardware tools used include MP LAB, ORCAD/PSPICE, MATLAB/SIMULINK.

Analysis and impacts of implementing

This document discusses a project analyzing the impacts of implementing droop control in doubly-fed induction generator (DFIG) wind turbines on microgrid and weak grid stability. Currently, conventional DFIG control does not allow wind turbines to participate in frequency regulation. The project aims to address this issue through detailed analysis of droop-controlled DFIG units in microgrids. Simulation and hardware tools like MP Lab, Orcad/Pspice, and MATLAB/Simulink were used to study the outputs.

A novel drive method for high speed brushless