scholarly journals Interleaved quadratic boost converter integrated with Dickson voltage multiplier with energy storage for high power photo voltaic applications

2021 ◽  
Vol 12 (2) ◽  
pp. 957
Author(s):  
Dhanaraj Amudhavalli ◽  
Nalin Kant Mohanty ◽  
Ashwin Kumar Sahoo
Keyword(s):  
Energy Storage ◽  
High Power ◽  
Input Voltage ◽  
High Gain ◽  
Boost Converter ◽  
Photovoltaic System ◽  
Input Current ◽  
Voltage Multiplier ◽  
Power Load ◽  
Photo Voltaic

In this paper interleaved quadratic boost converter with Dickson voltage multiplier is proposed. Photovoltaic system is connected to high power load through the proposed converter. Structure of this high gain interleaved converter comprised of two stages: interleaved quadratic boost converter stage and Dickson voltage multiplier stage. Interleaved quadratic boost converter is a parallel combination of two quadratic boost converter. The interleaving increases frequency of converter that could be filtered using small capacitors, making input current smoother than the current of conventional quadratic boost converter. Thus, interleaved circuit minimizes current ripple present in input current, cascading of voltage multiplier cell increases the gain voltage ratio of converter making it suitable for high power, high voltage gain photo voltaic applications. Stress voltage of the switches and reverse recovery problems gets reduced, thereby reducing EMI problems. 300W prototype capable of increasing 24V input voltage to 400V output voltage is designed and results tested using MATLAB/Simulink software. Hardware prototype is also implemented to verify simulation results. Also, application of this converter in integrated energy storage is demonstrated.

scholarly journals High gain boost converter with modified voltage multiplier for stand alone PV system

2019 ◽  
Vol 14 (1) ◽  
pp. 185
Author(s):  
Getzial Anbu Mani ◽  
A. K. Parvathy
Keyword(s):  
High Efficiency ◽  
Input Voltage ◽  
High Gain ◽  
Boost Converter ◽  
Pv System ◽  
Boost Converters ◽  
Low Input ◽  
Voltage Multiplier ◽  
Photo Voltaic ◽  
Current Ripple

<p>Boost converters of high gain are used for photo voltaic systems to obtain high efficiency. These high gain Boost converters gives increased output voltage for a low input produces high outputs for low input voltage. The High gain boost converters have the following merits. Conduction losses input current ripple and stress across the switches is reduced while the efficiency is increases. The high gain of the converters with the above said merits is obtained by changing the duty cycle of switches accordingly .In this paper a boost converter working with interleaved concept along with a additional Nstage voltage Multiplier has been carried out by simulation using MATLAB/ simulink and the mathematical modeling of various parameters is also done.</p>

A High Step-up DC-DC Converter Based on the Voltage Lift Technique for Renewable Energy Applications

2021 ◽  
Vol 13 (19) ◽  
pp. 11059
Author(s):  
Shahrukh Khan ◽  
Arshad Mahmood ◽  
Mohammad Zaid ◽  
Mohd Tariq ◽  
Chang-Hua Lin ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Common Ground ◽  
Closed Loop ◽  
Low Voltage ◽  
Renewable Energy Sources ◽  
Input Voltage ◽  
High Gain ◽  
Boost Converter ◽  
Open Loop ◽  
Voltage Gain

High gain DC-DC converters are getting popular due to the increased use of renewable energy sources (RESs). Common ground between the input and output, low voltage stress across power switches and high voltage gain at lower duty ratios are desirable features required in any high gain DC-DC converter. DC-DC converters are widely used in DC microgrids to supply power to meet local demands. In this work, a high step-up DC-DC converter is proposed based on the voltage lift (VL) technique using a single power switch. The proposed converter has a voltage gain greater than a traditional boost converter (TBC) and Traditional quadratic boost converter (TQBC). The effect of inductor parasitic resistances on the voltage gain of the converter is discussed. The losses occurring in various components are calculated using PLECS software. To confirm the performance of the converter, a hardware prototype of 200 W is developed in the laboratory. The simulation and hardware results are presented to determine the performance of the converter in both open-loop and closed-loop conditions. In closed-loop operation, a PI controller is used to maintain a constant output voltage when the load or input voltage is changed.

scholarly journals Non-isolated high gain DC-DC converter by quadratic boost converter and voltage multiplier cell

2018 ◽  
Vol 9 (4) ◽  
pp. 1397-1406 ◽  
Author(s):  
J. Divya Navamani ◽  
K. Vijayakumar ◽  
R. Jegatheesan
Keyword(s):  
High Gain ◽  
Boost Converter ◽  
Voltage Multiplier

Simulation and Experimentation of Fourth Order DC-DC Boost Converter for Renewable Energy Source Applications

2016 ◽  
Vol 8 (1) ◽  
Author(s):  
S.B Mohanty ◽  
K.M Ravi Eswar ◽  
D. Elangovan ◽  
G. Arun Kumar
Keyword(s):  
Energy Source ◽  
Renewable Energy Source ◽  
Renewable Energy ◽  
Energy Storage ◽  
Fourth Order ◽  
Input Voltage ◽  
Boost Converter ◽  
Switching Frequency ◽  
Bacterial Foraging Optimization ◽  
Loop Control

In this paper, analysis and experimentation of a fourth order boost converter has been proposed for renewable energy source applications such as solar power. The output of proposed converter is fed to motor load of 220W. The main advantages of this converter are negligible current ripples at both source and load side and higher efficiency as compared to the conventional boost converter. The energy storage elements in circuit are designed and optimized using Bacterial Foraging Optimization Algorithm (BFOA) to solve the contradictory problems of steady state and dynamic performance of the system. The up-down glitch in control to output transfer function of system is reduced with the optimized values of energy storage elements in the proposed converter. Therefore dynamic response of system is analyzed with the designed values of inductor and capacitor. Closed loop control is introduced in the proposed system using proportional integral controller to maintain the output voltage constant when there is any load disturbance in the output side and wide variations in the input voltage. Simulation and hardware results of the proposed converter with input voltage of 60V and switching frequency of 100 kHz are presented.

scholarly journals Non-Isolated High Gain Quadratic Boost Converter Based on Inductor’s Asymmetric Input Voltage

IEEE Access ◽  
2021 ◽  
pp. 1-1
Author(s):  
Svk Naresh ◽  
Sankar Peddapati ◽  
Mamdouh L. Alghaythi
Keyword(s):  
Input Voltage ◽  
High Gain ◽  
Boost Converter

scholarly journals Formulation and Analysis of Single Switch High Gain Hybrid DC to DC Converter for High Power Applications

Electronics ◽  
2021 ◽  
Vol 10 (19) ◽  
pp. 2445
Author(s):  
Sathiya Ranganathan ◽  
Arun Noyal Doss Mohan
Keyword(s):  
Conversion Efficiency ◽  
High Voltage ◽  
High Power ◽  
High Gain ◽  
Input Current ◽  
Lower Efficiency ◽  
Flyback Converter

The necessity for DC−DC converters has been rapidly increasing due to the emergence of RES-based electrification. However, the converter designed so far exhibits the drawbacks of lower efficiency and non-compactness in size. Hence, to rectify this problem, the new topology of a flyback converter for PV application is proposed in this work. The proposed converter exhibits reduced ripple in input current and enhances the conversion efficiency. Finally, the efficiency of this proposed converter is verified using MATLAB. The results indicate that this projected topology can be suitable for high voltage DC applications.

scholarly journals Energy Management in PV Based Microgrids Designed for the Universidad Nacional de Colombia

2020 ◽  
Vol 12 (3) ◽  
pp. 1219 ◽  
Author(s):  
Luis Fernando Grisales-Noreña ◽  
Carlos Andrés Ramos-Paja ◽  
Daniel Gonzalez-Montoya ◽  
Gerardo Alcalá ◽  
Quetzalcoatl Hernandez-Escobedo
Keyword(s):  
Power Generation ◽  
Energy Storage ◽  
Energy Management ◽  
Management Strategy ◽  
State Of Charge ◽  
Photovoltaic System ◽  
Normal Operation ◽  
Energy Management Strategy ◽  
Dc Microgrid ◽  
Power Load

Stand-alone Electrical microgrids (MGs) require power management strategies to extend the life-time of their devices and to guarantee the global power balance of non-critical loads such as lighting of small sections of an university campus or individual air conditioning systems. This paper proposes an energy management strategy (EMS) for an isolated DC microgrid formed by a photovoltaic system (PVS), an energy storage system (battery), and a noncritical load. This configuration enables the photovoltaic system to control the power generation and ensures that the storage element does not exceed the safe limits of the state of charge. To control the generation of the photovoltaic system, two operating modes based on the perturb and observe (P&O) algorithm are implemented. The first one performs a maximum power point tracking (MPPT) action, while the second one regulates the power generated by the PVS to match the load requirement (power demand tracking, PDT). The management strategy also considers different operating states for ensuring the battery safety: normal operation, overcharge (at the maximum state of charge), and bulk charge (at the minimum state of charge); in those states the disconnection/connection of both the battery and the load is also considered. The main contribution of this work is to design and test a control strategy for an EMS aimed at regulating a standalone microgrid based on a PV system and an energy storage device. This solution is validated using detailed MG circuital simulations, which includes the PV source model (single-diode model), lithium-ion battery model, constant power load model and the DC/DC converters equations; moreover, realistic power generation and demand from Universidad Nacional de Colombia, located at Medellín-Colombia, are considered. The results obtained demonstrate the effectiveness of the energy management strategy, and in this way, enable to extend the battery lifetime and reduce the costs associated to the maintenance and disconnection of the microgrid in educational buildings or other applications focused on this type of DC microgrid.

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