Top PDF Interleaved DC DC Boost Converter with High Voltage Gain and Efficiency for Solar Energy Systems

Interleaved DC DC Boost Converter with High Voltage Gain and Efficiency for Solar Energy Systems

Interleaved DC DC Boost Converter with High Voltage Gain and Efficiency for Solar Energy Systems

The solar panel provides the necessary input voltage for the converter to operate. The pic microcontroller is interfaced with mppt using fuzzy logic. The controller circuit will help the driver circuit for turning on and off of the mosfet switches in the interleaved boost converter. this helps the working of the converter as mentioned in the operation of the converter. The two stage voltage multiplier circuit will further help in the boosting of the output voltage. The filter circuits help in removing the harmonics and in reducing the ripple voltage and current values. The load side consists of a battery as in this case which will be charged by the help of the step upped voltage from the solar panel. The circuit is made not only to boost the voltage but also it will be used faster charging of the battery than conventional boost converters for better utilization of the available power.
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A Quadrupler Voltage Interleaved DC-DC Boost Converter with Fuzzy Logic Implementation

A Quadrupler Voltage Interleaved DC-DC Boost Converter with Fuzzy Logic Implementation

ABSTRACT: The output voltage generated by the sources such as photovoltaic arrays, the fuel stacks, the super capacitors or the battery sources are very low, in the range of 12-48 V. Hence it must be boosted to a high voltage. Therefore a novel topology for a boost converter, which can achieve a higher voltage gain, is necessary. The proposed converter is derived from a two-phase interleaved boost converter. The advantages of interleaved boost converter compared to conventional topologies include high voltage gain, high efficiency, low input current ripple and better transient responses. Even though high voltage gain can be obtained, the closed loop control of transformer-less boost converter with PI controller results in reduction of the system responses and causes damage to the components used in the system. So, in order to overcome these drawbacks a quadrupler voltage boost converter with Fuzzy Logic Controller (FLC) is presented. Here simulation models of transformer-less interleaved boost converter with PI controller and Fuzzy Logic Controller in MATLAB was developed.The analytical model for the switching intervals has been validated with the simulation results using MATLAB simulation tool.
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High Efficiency DC to DC Boost Converter

High Efficiency DC to DC Boost Converter

The increase in demand for the power potential and the lack of non renewable resources which enable us to shift our focus to renewable resources which are efficient. To prevent pollution of the earth we go for the clean energy like renewable energy [1]-[2].The main sources of renewable resources are solar and wind energy plays a vital role. There are many onsite and offshore solar panels used to harvest solar energy. The betterment in the solar power projects lies on the grid and half-grid connectivity. The process of selection of site is a crucial factor in which the incident of solar energy is difficult and inclination should be in an appropriate manner. The solar resource assessment should consider the proper area in which the emission of sunlight is more effective and there should be no shadow in the place of implementation of solar. One of the application of the boost converter is LED, an input voltage of 52V is needed to forward bias 15 LEDs are connected in series, as the operating voltage of single-cell lithium-ion battery is 3.6V to 4.2V[3]. The supply voltage is provided by boost regulators [4].
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A HIGH-EFFICIENCY BIDIRECTIONAL INTERLEAVED DC-DC CONVERTER

A HIGH-EFFICIENCY BIDIRECTIONAL INTERLEAVED DC-DC CONVERTER

The PEM fuel cell presents a low-voltage output with wide range of variations [1]-[3].As shown in fig. 1 a step-up dc-dc converter is always necessary for providing a regulated high-voltage output to the post stage dc-ac inverter in high-power grid –tied applications. For PEM fuel cell system applications, the dc-dc converter must be considered with following design criteria: large step-up ratio, low-input-current ripple and isolation[4]-[6].Input choke with high inductance is needed at low voltage side because high ripple current may cause undesired hysteresis energy losses inside the fuel cell stacks[7]-[10].Increased power loss and component size on input choke are significant to result in poor conversion efficiency and low power density for the step-up dc-dc converter in high power PEM fuel-cell systems.
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Voltage Regulation and Over Voltage Protection for High Gain High-Efficiency DC-DC Converter

Voltage Regulation and Over Voltage Protection for High Gain High-Efficiency DC-DC Converter

PV performance [4]. On the other hand, only a low voltage is generated with the parallel-connected configuration, which makes it easy to satisfy the safety requirements in home applications. Thus, the new research trend is to employ the PV parallel-connected configuration rather than the series-connected configuration in the residential power generation system. Renewable energy such as Solar PV and fuel stack poses some other significant challenges such as optimal utilization of the sources due to their variable output. They are usually operated at low output voltage levels (typically 24-48V) when connected in parallel for residential application. This makes their application to grid- connected systems and even some standalone loads difficult because a large voltage boosting at the output is required. The converters need to raise the low DC voltage (24-48V) to high DC voltage (380-400 V) for the PV inverters. This indicates that a DC-DC converter with high output voltage is essential right across the solar power panel as shown in the fig.1.1.
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High step up interleaved dc dc converter with coupled inductor

High step up interleaved dc dc converter with coupled inductor

inductance present in the non-ideal coupled inductor. The presented active-clamp circuit, based on single boost converter, can successfully reduce the voltage stress of the switches close to the low-level voltage stress offered by an ideal coupled-inductor boost converter. The common clamp capacitor of this active-clamp circuit collects the leakage energies from all the coupled-inductor boost converters, and the boost converter recycles the leakage energies to the output. Detailed analysis of the operation and the performance of the proposed converter were presented in this paper. It has been found that with the switches of lower voltage rating, the recovered leakage energy, and the other benefits of an ideal coupled-inductor boost converter and interleaving, the converter can achieve high efficiency for high-step-up power conversion. A prototype of interleaved coupled-inductor boost converter with a common active clamp circuit was implemented and the results are obtained.
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Interleaved Switched-Capacitor Bidirectional DC-DC Converter with Wide Voltage-Gain Range for Energy Storage Systems

Interleaved Switched-Capacitor Bidirectional DC-DC Converter with Wide Voltage-Gain Range for Energy Storage Systems

ABSTRACT: In this paper, an interleaved switched-capacitor bidirectional dc-dc converter with a high step-up/step- down voltage gain is proposed. The interleaved structure is adopted in the lowvoltage side of this converter to reduce the ripple of the current through the low-voltage side, and the series-connected structure is adopted in the high-voltage side to achieve the high step-up/stepdown voltage gain. In addition, the bidirectional synchronous rectification operations are carried out without requiring any extra hardware, and the efficiency of the converter is improved. Furthermore, the operating principles, voltage and current stresses, and current ripple characteristics of the converter are analyzed. Finally, a 1 kW prototype has been developed which verifies a wide voltage gain range of this converter between the variable low-voltage side (50–120 V) and the constant high-voltage side (400 V). The maximum efficiency of the converter is 95.21% in the step-up mode and 95.30% in the step-down mode. The experimental results also validate the feasibility and the effectiveness of the proposed topology.
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A Non Isolated High Voltage Gain and Balanced Output Voltage DC-DC Boost Converter Based on SSC and VMC

A Non Isolated High Voltage Gain and Balanced Output Voltage DC-DC Boost Converter Based on SSC and VMC

Depending on the appliance nature, many kinds of static power converters are necessary for the adequate conversion and acquisition of the energy provided by primary sources like electrical phenomenon arrays, wind turbines, and fuel cells. Besides, considering that the price of renewable energy systems is high, the utilization of high efficiency power electronic converters may be a necessary. A three-state switching cell (3 SSC) can be obtained by the association of two two-state switching cells (2 SSCs)interconnected to a centre -tapped autotransformer, from which a family of dc-dc converters can be derived. For good operation of the VMC ac input voltage is required, which is an important requirement of this cell. Due to this fact, the use of the 3SSC depicted is considered because it generates such ac voltage across the terminals of the autotransformer and therefore the drain terminals of the controlled switches. Within the ensuing cell, the controlled switches may be described by MOSFETs, junction field-effect transistors, insulated gate bipolar transistors, bipolar junction transistors, etc. Completely the generated topologies gift bifacial characteristics.
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Design 
		and simulation of voltage booster circuit using coupled inductor

Design and simulation of voltage booster circuit using coupled inductor

The proposed converter design and simulation of voltage boost circuit using coupled inductor for obtained the high gain DC-DC converter are presented in this paper. The coupled-inductor with supporting of two capacitor and two switches possible of obtained high voltage gain. The coupled inductor is the major role of energy stored in the leakage inductor can be recycled. Finally, a simulation circuit for the proposed boost converter with 24-V input voltage from the battery, output voltage of 271V, and the output power of 407W, the actual efficiency is 96.9% at the full-load for the simulation using MATLAB/ SIMULINK.
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Interleaved switched capacitor bidirectional DC DC converter with wide voltage gain range for energy storage systems

Interleaved switched capacitor bidirectional DC DC converter with wide voltage gain range for energy storage systems

bidirectional DC-DC converters in [26] , and [27] just need four semiconductors, the maximum voltage stress of the converter in [26] is that of the high voltage side, and the maximum voltage stress of the converter in [27] is higher than that of the high voltage side. The bidirectional converters in [28] , and [29] only require three semiconductors. But their voltage-gain ranges are still small. In addition, the low-voltage and high-voltage side grounds of these converter are connected by a power semiconductor or an inductor, which will also cause extra EMI problems. Finally, the high voltage-gain converter in [30] needs more power components and fails to achieve bidirectional power flows. In addition, the balanced inductor currents just can be achieved when the number of the voltage multiplier stages is odd. The converter in [31] suffers from the huge current ripple in the low-voltage side.
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ANALYSIS AND DESIGN OF HIGH BOOST RATIO CONVERTER FOR EFFICIENT ENERGY TRANSFER FROM PV MODULE

ANALYSIS AND DESIGN OF HIGH BOOST RATIO CONVERTER FOR EFFICIENT ENERGY TRANSFER FROM PV MODULE

Attempts were made by scientists for utilizing solar power in different ways. Solar drives, solar water heater, solar concentrators are some examples. Recently because of energy shortage attention was given for generating electric power from solar power. This proposed project presents a non-isolated, high boost ratio hybrid transformer dc-dc converter that has the applications in low voltage renewable energy sources. The proposed converter makes use of a hybrid transformer to transfer the inductive and capacitive energy simultaneously. This helps to achieve a high boost ratio .The proposed system combines pulse width modulation along with resonant mode operation. This helps to minimize the turn off losses of the switch and thereby improving the efficiency of the converter. Since the input to the converter is hybrid linear sinusoidal current waveform, the input current ripple and conduction losses are low. The voltage stresses on the active switch and diodes are maintained at a low level and are independent of the changing input voltage over a wide range as a result of the resonant capacitor transferring energy to the output of the converter.
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An interleaved high gain boost converter with SVM inverter for a motor 
		load using PV panels

An interleaved high gain boost converter with SVM inverter for a motor load using PV panels

Rapid deployment of renewable energy and energy efficiency is resulting in significant energy security, climate change mitigation, and economic benefits. In international public opinion surveys there is strong support for promoting renewable sources such as solar power and wind power. At the national level, at least 30 nations around the world already have renewable energy contributing more than 20 percent of energy supply. One of today’s fastest growing renewable energy technologies is Photovoltaic PV power systems. Converting sunlight into electricity, solar power is used in two ways, one is direct using PV and another one is indirectly using concentrated solar power. Lenses or mirrors and tracking systems are used in CSP in order to get more sunlight into a beam which is smaller one. Photovoltaic module is a number of solar cells connected electrically to each other and mounted a frame which is designed to produce current at certain levels.
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A Novel Fuzzy Based DC–DC Boost Converter with Balanced Output & High Voltage Gain

A Novel Fuzzy Based DC–DC Boost Converter with Balanced Output & High Voltage Gain

DEPENDING on the application nature, several types of static power converters are demanded for the adequate conversion and conditioning of the energy provided by primary sources such as photovoltaic arrays, wind turbines, and fuel cells. Moreover, considering that the overall cost of renewable energy systems is high, the use of high efficiency power electronic converters is a must [1].

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High Gain Efficient Interleaved Dc-Dc Converter for Induction Motor Applications

High Gain Efficient Interleaved Dc-Dc Converter for Induction Motor Applications

However, the extensive use of power electronics based equipment with pulse width modulated variable speed drives are increasingly applied in many new industrial applications that require superior performance. This paper has presented the simulation analysis of steady state value related consideration, for the proposed converter operated under open-loop & closed loop manner. The proposed converter has successfully implemented an efficient high step-up conversion through the voltage multiplier module. The interleaved structure reduces the input current ripple and distributes the current through each component. In addition, the lossless passive clamp function recycles the leakage energy and constrains a large voltage spike across the power switch. Meanwhile, the voltage stress on the power switch is restricted and much lower than the output voltage (380 V). Furthermore, the full-load efficiency is improved at Po = 1000 W, and the highest efficiency is nearly 97.1% at Po = 400 W. Thus, the proposed converter is suitable for high-power or renewable energy applications that need high step-up conversion with efficient operation.
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Dual Input DC DC Converters with Input Boost Stages

Dual Input DC DC Converters with Input Boost Stages

In this paper, a high-voltage-gain dcdc converters with two input boost stages has been proposed. The proposed converter is based on diode–capacitor VM stages and the voltage gain is increased by increasing the number of VM stages. It can draw power from two input sources or can operate in an interleaved manner when connected to a single source. Since it is a multi-port converter with a high voltage gain, independent sources can be connected and power sharing, MPPT algorithms can be implemented independently at each input port. The proposed converter can be used for solar applications where each panel can be individually linked to the 400-V dc bus.
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A DC DC Converter with High Voltage Gain for Motor Applications using Fuel Cell

A DC DC Converter with High Voltage Gain for Motor Applications using Fuel Cell

fuel cell source is typically much lower than the voltage required by the system. A new DC-DC boost converter with a ideal input range and high voltage gain is proposed to act as the required power interface, which reduces the voltage stress across the system. The converter was measured as 95.01% efficiency. A DC motor is connected across the output side and closed loop is performed. Simulation is performed using MATLAB software and simulation result are shown. A simple prototype is shown in open loop .It is mainly used for motor applications and in industrial areas .The output of the motor is connected to PI controller and closed is performed .The closed loop is performed and the motor load does not vary in speed Fuel cell is used in project because it is renewable form of energy .The fuel cell uses hydrogen as fuel which is easily available and the byproduct of the Fuel cell is water .It is far convenient and does not wide open to environment .The usage of Fuel cell in the project opens wide range usage of fuel cell .
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Design and Simulation of Interleaved DC-DC Boost Converter for Stand-alone Systems Using Solar Panel

Design and Simulation of Interleaved DC-DC Boost Converter for Stand-alone Systems Using Solar Panel

ABSTRACT: This paper describes the development of photovoltaic applications with highly reliable and efficient converter and inverter equipped with advanced control strategies, which made the photovoltaic system compatible for higher power ratings. In this paper a number of solar PV modules are interconnected to generate abundant electrical energy which is connected to an interleaved boost converter and single phase voltage source inverter through which the energy is evacuated to the load. The interleaved boost converter is controlled by maximum power point tracking (MPPT) and the inverter is controlled by sinusoidal pulse width modulation technique (SPWM). The proposed system eliminates the use of low frequency transformers at the AC side which reduces a major part of the power losses. The proposed system is simulated using PSIM 9.3.
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A Coupled Inductor Based High Voltage Gain DC-DC Converter Using Interleaved Voltage Multiplier Cells

A Coupled Inductor Based High Voltage Gain DC-DC Converter Using Interleaved Voltage Multiplier Cells

In this study, a novel non-isolated DC-DC converter with high conversion ratio is proposed. The suggested structure consists of a coupled inductor with two windings, just one active switch and two interleaved voltage multiplier units that are composed of diodes and capacitors. The voltage gain of the presented converter depends on the turn's ratio of the coupled inductor. The produced leakage inductance energy by coupled inductor is retrieved which leads to improving the overall efficiency of the converter. The diode-capacitor units are utilized to increase the output voltage and also, clamp the voltage through the switch which leads to reduce the voltage stress of the semiconductors. Thus, by using single switch with lower resistance R DS (on) , the
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High-Efficiency Modular High Step-Up Interleaved Dc-Dc Boost Converter Using Fuzzy Controller

High-Efficiency Modular High Step-Up Interleaved Dc-Dc Boost Converter Using Fuzzy Controller

The DC-DC Converter has low switching power losses and high power efficiency. The use of single transformers gives a low-profile design for the step-up DC-DC converter for low-DC renewable energy sources like photovoltaic module and fuel cell [4]. The ILBC converter is gaining its popularity. An Interleaved boost converter usually combines more than two conventional topologies, and the current in the element of the interleaved boost converter is half of the conventional topology in the same power condition. Besides, the input current ripple and output voltage ripple of the interleaved boost converter are lower than those of the conventional topologies. Interleaved boost converters has higher efficiency than the conventional single boost converter [5]. In the interleaved boost converter topology, one important operating parameter is called the duty cycle D. For the boost converter, the ideal duty cycle is the ratio of voltage output and input difference with output voltage[8]. As already well known, the input current and output voltage ripple of interleaved boost dc-dc converter can be minimized by virtue of interleaving operation. Moreover, the converter input current can be shared among the phases, which is desirable for heat dissipation[6]. Therefore, the converter reliability and efficiency can be improved significantly. In this paper, comprehensive simulation analyses are presented to illustrate the performance of the interleaved boost dc-dc converter. The features of the interleaved boost dc-dc converter, the principle of operation and the design procedure are discussed in this paper. The simulation and experimental results are presented and compared. The voltage stresses of the main switch and the auxiliary switches are equal and the duty cycle of the proposed topology can be increased to more than 50%. The proposed converter is the parallel of the boost converters and their gate signals are generated by fuzzy controller and this makes the operation more accurate. Moreover, by establishing the fuzzy controller for the interleaved converter can further reduce the size and cost[7]. This work proposes simulation and model for closed loop control system.
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A Novel PI Converter based High Voltage Gain DC – DC Converter

A Novel PI Converter based High Voltage Gain DC – DC Converter

Now a day, single switch high voltage gain dcdc converters is used to reduce voltage stress and recycle the output by leakage inductance energy. In this converter used in many industrial applications such as fuel cell energy conversion systems, uninterrupted power supply electric traction and some medical equipment’s. The above applications depend on the dc- dc converter types which are boost converter. Here with the help of boost converter rather than classical, high output voltage is equal to voltage stress of the main switch. The result of an extremely high duty cycle will give large conduction losses on power device and it is not realizing high voltage gain. This converter achieve high conversion ratio and reduced at extremely high duty cycle. In high voltage applications the rating of active switch is high voltage must be selected.
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