Boost Converter Research Papers - Academia.edu (original) (raw)
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Recent papers in Boost Converter
Uninterruptible power supplies (UPSs) are widely used to deliver reliable and high quality power to critical loads under all grid conditions. This paper proposes a high-frequency isolated online UPS system for low power applications. The... more
Uninterruptible power supplies (UPSs) are widely used to deliver reliable and high quality power to critical loads under all grid conditions. This paper proposes a high-frequency isolated online UPS system for low power applications. The proposed UPS consists of a single-stage AC-DC converter, boost DC-DC converter, and an inverter. The single-stage AC-DC converter provides galvanic isolation, input power factor correction, and continuous conduction of both input and output current. The low battery bank voltage is stepped up to high dc-link voltage by employing a high voltage gain boost converter, thus allows the reduction of battery bank to only 24 V parallel connected batteries. Operating batteries in parallel improves the battery performance and resolves the issues related to conventional battery banks that arrange the batteries in series combination. The inverter provides regulated output voltage to the load. A new cascaded slide mode (SM) and proportional-resonant (PR) control ...
Installations of Solar Photovoltaic systems in distribution networks are increasing in very swift manner. These PV systems have both pros and cons associated with it. In terms of cons, it has power electronic devices which provides... more
Installations of Solar Photovoltaic systems in distribution networks are increasing in very swift manner. These PV systems have both pros and cons associated with it. In terms of cons, it has power electronic devices which provides harmonics and thus affects the power quality of the grid by causing harmonic distortion. The aim of this study is the harmonic analysis of PV systems on grid. To emulate a realistic scenario a certain level of harmonics is also injected in the considered network through a dynamic load. Number of PV sources has increased and then the THD is analyzed for these cases. The scheme involves photovoltaic generation (PV) modules which are basically act as a DC current Source, which is connected to the grid through DC-DC converter and DC-AC Converter. Instead of current source inverter a voltage source inverter is utilized and the controlling technique is applied owing to control the voltage source inverter. MATLAB/SIMULINK tool has been used to simulate the considered grid connected PV system and to analyze it for the varying environmental conditions. Maximum power point tracking based on perturb & observe algorithm has been considered to analyze the system for maximum utilization under different irradiation and panel temperatures. These PV system provides harmonic distortion in the grid which affects the power quality of the grid as it is large in number. And with the no. of PV systems increasing rapidly it may become a bigger problem.
The growing trend in power demand and efficiency requirements of modern telecommunication systems is in need of PFC converter at the front end. The presence of non-linear loads results in poor power factor. Also, there is a need to reduce... more
The growing trend in power demand and efficiency requirements of modern telecommunication systems is in need of PFC converter at the front end. The presence of non-linear loads results in poor power factor. Also, there is a need to reduce the ripple present at both the input and output end of the DC to DC boost converter so as to improve the supply power factor of the system. This paper reveals a comparative study of ripple present in inductor current, output current and output voltage of three different topologies of DC-DC converters namely dc-dc boost converter, interleaved boost converter and soft switching interleaved boost converter. This paper also highlights the significance of each converter by computing the efficiency. The simulated waveforms have been demonstrated using MATLAB/SIMULINK. The performance of three different dc-dc boost converter topologies is investigated and the results are verified. The results reveal that soft switched gives a higher efficiency compared to the other topologies.
This document proposes a photovoltaic (PV) based single-phase dynamic voltage restoration (DVR) device, it eliminates both sag and swell voltage and compensates for power. The proposed system requires a power source to compensate for the... more
This document proposes a photovoltaic (PV) based single-phase dynamic voltage restoration (DVR) device, it eliminates both sag and swell voltage and compensates for power. The proposed system requires a power source to compensate for the sag/swell voltage. This system has found a simple topology for the DVR that uses PV with two DC-DC boosts converters as the DC power source for the dynamic voltage conservator. The DC/DC boost converter powered by the PV generator is applied to increase the voltage to meet the DC bus voltage requirements of the single-branch voltage source inverter (VSI). This system uses renewable energy; saves energy accordingly and supplies power to critical/sensitive loads. The control method used in this work is a Sliding Mode Control (SMC) method and relies on a phase locked loop (PLL) used to control the active filter. The effectiveness of the suggested method is confirmed by the MATLAB/Simulink® simulation results and thelaboratorial prototype. These results show the capacity of the proposed DC link control.
This paper presents a design and implementation of a high power dc distributed system supplied by a fuel cell generator. A proposed parallel power converter with interleaving algorithm is chosen to boost a low dc voltage of fuel cell to a... more
This paper presents a design and implementation of a high power dc distributed system supplied by a fuel cell generator. A proposed parallel power converter with interleaving algorithm is chosen to boost a low dc voltage of fuel cell to a dc bus utility level. The present interleaved step-up converter is composed of two identical boost converters connected in parallel. Modules are controlled by interleaved switching signals, which have the same switching frequency and the same phase shift. During the past decade, power electronics research has focused on the development of interleaved parallel converters. For an interleaving technique with a real fuel cell source, this work is the first presentation; it is not just a fuel cell simulation. So, the design and experimental verification of 1.2-kW prototype converter at a switching frequency of25 kHz connected with a Nexa™ PEM fuel cell system (1.2-kW, 46-A) in a laboratory are presented. Experimental results corroborate the excellent system performances. The fuel cell ripple current can be reduced. As a result, the fuel cell mean current is nearly equal to the fuel cell rrns current.
- by I. Barbi and +1
- •
- Renewable Energy, Energy Conversion, Fuel Cell, Theoretical Analysis
This paper analyzes two maximum power point tracking (MPPT) converter topologies that are part of an interface converter for the integration of photovoltaics (PV) in the grid. Two different MPPT converter topologies (boost converter and... more
This paper analyzes two maximum power point
tracking (MPPT) converter topologies that are part of an
interface converter for the integration of photovoltaics (PV) in
the grid. Two different MPPT converter topologies (boost
converter and quasi-Z-Source (qZS) converter) were selected and compared. Theoretical comparison includes an analysis of
regulations for obtaining continuous source current and
comparison of necessary parameters of the reactive elements of the systems.
270 W experimental prototypes of both converters were built
and experimentally compared. Theoretical and experimental
efficiency estimation is proposed and discussed. Also, the losses in diodes and MOSFETS are evaluated taking into account technical data from datasheets
This paper proposes the design and experimentation of digital control of soft-switched interleaved boost converter using FPGA for Telecommunication System. The switching devices in the proposed converter are turned on and off with Zero... more
This paper proposes the design and experimentation of digital control of soft-switched interleaved boost converter using FPGA for Telecommunication System. The switching devices in the proposed converter are turned on and off with Zero Voltage Switching (ZVS) and Zero Current Switching (ZCS) respectively. The circuit is operated in Continuous Conduction Mode (CCM) with various load ranges having duty cycle of more than 50%. The proposed converter is studied by developing the simulation module in MATLAB/SIMULINK. A PI controller is designed and implemented in FPGA to obtain a regulated DC output for line and load variations. Simulation and experimentation results are verified with a prototype development of the proposed converter. The results indicate that the converter performance is enhanced with closed loop control.
The objective of this paper is to demonstrate the d esign of a two-level boost converter and its contro ller. First, the context of the importance of such a converter is st ablished. Then, the operation of an ideal converter is studied to... more
The objective of this paper is to demonstrate the d esign of a two-level boost converter and its contro ller. First, the context of the importance of such a converter is st ablished. Then, the operation of an ideal converter is studied to determine some fundamental relationships necessary for design. Also, the non-idealities of the convert er are introduced and a set of equations are developed whi ch are later used to design a converter for a hybri d vehicle application. Finally, various control strategies ar e studied for the designed converter and implemente d in MATLAB/Simulink.
Maximizing the power point tracking of photovoltaic systems is currently the purpose of several researches in the context of renewable energies improvement. In this work we optimize and enhance the maximum power point tracking algorithm... more
Maximizing the power point tracking of photovoltaic
systems is currently the purpose of several researches in the
context of renewable energies improvement. In this work we
optimize and enhance the maximum power point tracking
algorithm based on fuzzy logic controller. Our approach focuses
on determining the maximum power point in a minimal time in
order to get the lowest possible energy loss. The fuzzy logic
controller presented in this work provide fast response and good
performance against the climatic and load change and uses
directly the DC/DC converter duty cycle as a control parameter.
After establishing our algorithm, we have performed a
comparative study with the classical algorithm used most perturb
and observe in various operating conditions. The simulation
results using MATLAB/Simulink show that fuzzy logic controller
provides better tracking compared to Perturb and observe despite
the climatic change (solar insolation and temperature).
- by Fernando L Tofoli and +1
- •
- APEC, High Power, Boost Converter, Power Factor
In modern technologically advanced world, power electronic based converters are extensively used. Among them DC to DC converters are majorly used in transportation system because of its increased efficiency and regenerative system. The... more
In modern technologically advanced world, power electronic based converters are extensively used. Among them DC to DC converters are majorly used in transportation system because of its increased efficiency and regenerative system. The railway traction system is eco-friendly, pollution free and largely used transportation system in the world. A review of different types of DC-DC converter, isolated, nonisolated and its recent application in railway traction system is presented here. This paper also covers its key features such as high voltage conversion ratio, ripple factor, galvanic isolation and efficiency performance of DC to DC converters.
This paper explains the modeling of solar Photo Voltaic (PV) panel model and the simulation of the circuit has been carried out using MATLAB/Simulink. The working performance of solar PV module is completely depends solar irradiation (G)... more
This paper explains the modeling of solar Photo Voltaic (PV) panel model and the simulation of the circuit has been carried out using MATLAB/Simulink. The working performance of solar PV module is completely depends solar irradiation (G) and cell temperature (Tc). To develop the equivalent circuit model of the photovoltaic cell, the single diode equivalent circuit cell model is developed using embedded MATLAB function for deciding the equivalent circuit parameters and study the characteristics curves of the PV cell module and also evaluate the impact of parameters of solar cell on the I-V and P-V characteristics curve. The attained results are compared with the data in the manufactures data. And the 250W solar panel is connected with the Interleaved Boost Converter (IBC) and conventional Boost Converter (BC) and the performance of converters are also evaluated.
The growing trend in power demand and efficiency requirements of modern telecommunication systems is in need of PFC converter at the front end. The presence of non-linear loads results in poor power factor. Also, there is a need to reduce... more
The growing trend in power demand and efficiency requirements of modern telecommunication systems is in need of PFC converter at the front end. The presence of non-linear loads results in poor power factor. Also, there is a need to reduce the ripple present at both the input and output end of the DC to DC boost converter so as to improve the supply power factor of the system. This paper reveals a comparative study of ripple present in inductor current, output current and output voltage of three different topologies of DC-DC converters namely dc-dc boost converter, interleaved boost converter and soft switching interleaved boost converter. This paper also highlights the significance of each converter by computing the efficiency. The simulated waveforms have been demonstrated using MATLAB/SIMULINK. The performance of three different dc – dc boost converter topologies is investigated and the results are verified. The results reveal that soft switched gives a higher efficiency compared to the other topologies.
The harvesting of ambient energy to power small electronic components has received tremendous attention over the last decade. The research goal in this field is to enable self-powered electronic components for use particularly in wireless... more
The harvesting of ambient energy to power small electronic components has received tremendous attention over the last decade. The research goal in this field is to enable self-powered electronic components for use particularly in wireless sensing and measurement. Thermal energy due to temperature gradients, solar energy and ambient vibrations constitute some of the major sources of energy that can be harvested. The process of extracting energy from the surrounding environment is termed as energy harvesting. There are various forms of energy that can be scavenged, like
This paper highlights the importance of interleaved boost converter for Telecommunication Systems. The design aspects of interleaved boost converter with zero-voltage switching (ZVS) and zero-current switching (ZCS) is discussed in... more
This paper highlights the importance of interleaved boost converter for Telecommunication Systems. The design aspects of interleaved boost converter with zero-voltage switching (ZVS) and zero-current switching (ZCS) is discussed in detail. The study includes the description of switch mode power supply, DC-DC Converter along with the characteristics of
power MOSFET switches and soft switching principle. The selection of inductor, output capacitor, and freewheeling diodes,and main switches, number of phases and choice of duty ratio for the proposed IBC in telecom sector is investigated.Theoretical analysis is carried out to emphasize the significance of IBC as a suitable power converter for telecommunication systems.
The switching mode power supply market is flourishing quickly in today’s world. Design engineers aren’t always supplied with the desired amount of voltage they need in order to make their design function properly. Adding an extra voltage... more
The switching mode power supply market is flourishing quickly in today’s world. Design engineers aren’t always supplied with the desired amount of voltage they need in order to make their design function properly. Adding an extra voltage supply to a design is not always cost efficient. This thesis is proposed to provide the designer with a method of boosting DC voltage from 5 Volts to 8 Volts, by using a boost converter designed specifically for this task. All aim, calculations, tests, data and conclusions have been documented within this report. Results of simulation show that the switching converter will boost voltage from 5 volts to 8 volts with power conversion efficiency of 94.16 percent.
Le cours comprend les bases théoriques et les directives relatives aux différentes phases de la réalisation d’une centrale photovoltaïque. La présente publication sert de document didactique de base et comprend également certains «outils... more
Le cours comprend les bases théoriques et les directives relatives aux
différentes phases de la réalisation d’une centrale photovoltaïque. La
présente publication sert de document didactique de base et comprend
également certains «outils » de travail qui faciliteront la mise
en oeuvre d’un projet:
Renewable energy sources are being increasingly implemented in many applications due to the growing concern of environmental pollution. The PV (Photovoltaic) system appears to be most promising one because it is environmentally clean in... more
Renewable energy sources are being increasingly implemented in many applications due to the growing concern of environmental pollution. The PV (Photovoltaic) system appears to be most promising one because it is environmentally clean in nature and it directly converts solar energy into electrical energy. This paper presents the FPGA (Field programmable gate array) based speed control of PMBLDC (Permanent magnet Brushless DC) motor & this BLDC motor is driven by the solar energy. The solar panel is used to obtain the energy needed to run BLDC motor. The voltage obtained from solar panel is stored in battery due to the non-constant nature of solar energy. The voltage from battery is not sufficient to run BLDC motor & hence boost converter is used to boost the voltage required to run BLDC motor. Commutation is implemented on FPGA. FPGA based speed control scheme reduces the complexity of motor control hardware & in turn boost the demand for mobile applications.
Uninterruptible power supplies (UPSs) are widely used to deliver reliable and high quality power to critical loads under all grid conditions. This paper proposes a high-frequency isolated online UPS system for low power applications. The... more
Uninterruptible power supplies (UPSs) are widely used to deliver reliable and high quality power to critical loads under all grid conditions. This paper proposes a high-frequency isolated online UPS system for low power applications. The proposed UPS consists of a single-stage AC-DC converter, boost DC-DC converter, and an inverter. The single-stage AC-DC converter provides galvanic isolation, input power factor correction, and continuous conduction of both input and output current. The low battery bank voltage is stepped up to high dc-link voltage by employing a high voltage gain boost converter, thus allows the reduction of battery bank to only 24 V parallel connected batteries. Operating batteries in parallel improves the battery performance and resolves the issues related to conventional battery banks that arrange the batteries in series combination. The inverter provides regulated output voltage to the load. A new cascaded slide mode (SM) and proportional-resonant (PR) control for the inverter has been proposed, which regulates the output voltage for both linear and non-linear loads. The controller shows excellent performance during load transients and step changes. Besides, the controller for boost converter and AC-DC converter is presented. Operating principle and experimental results of 1 kVA laboratory setup have been presented for the validation of proposed system.
This paper proposes a technique of intelligent control to track the maximum power point (MPPT) of a photovoltaic system . The PV system is non-linear and it is exposed to external perturbations like temperature and solar irradiation.... more
This paper proposes a technique of intelligent control to track the maximum power point (MPPT) of a photovoltaic system . The PV system is non-linear and it is exposed to external perturbations like temperature and solar irradiation. Fuzzy logic control is known for its stability and robustness. FLC is adopted in this work for the improvement and optimization of control performance of a photovoltaic system. Another technique called perturb and observe (P & O) is studied and compared with the FLC technique. The PV system is constituted of a photovoltaic panel (PV), a DC-DC converter (Boost) and a battery like a load. The simulation results are developed in MATLAB / Simulink software. The results show that the controller based on fuzzy logic is better and faster than the conventional controller perturb and observe (P & O) and gives a good maximum power of a photovoltaic generator under different changes of weather conditions
- by João Pinto and +1
- •
- Engineering, High Frequency, Dynamic Response, Boost Converter
In this paper a high-power-factor electronic ballast for compact fluorescent lamps based on the class E amplifier and featuring low voltage stress across the switch is presented. The proposed ballast is obtained by integrating a... more
In this paper a high-power-factor electronic ballast for compact fluorescent lamps based on the class E amplifier and featuring low voltage stress across the switch is presented. The proposed ballast is obtained by integrating a buck-boost converter, used as power factor correction stage, and a class E amplifier with a parallel resonant tank, used as a resonant inverter. The buck-boost converter is operated at constant frequency and constant duty cycle in discontinuous conduction mode (DCM) to obtain a high input power factor