A Modified PFC Rectifier Based EV Charger Employing CC/CV Mode of Charging (original) (raw)
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IRJET, 2022
environmental effects. Hence, Electric vehicle comes into a picture, because they runs on no or very less fuel. This vehicle totally runs on battery, so battery charger system should be fast and work effectively. So, here in our paper we have use boost converter to charge our battery. Along with this we have also used rectifier circuit, CT, PT, micro-controller. We used boost converter because it is chip and boost output voltage that's why efficiency of battery charger increases. Here, we try to maintain power factor at AC side near to unity that's why losses in system decreases and ultimately efficiency increases. Simulation in the paper shows the practical output of our topic, which is nearly unity and output waveform is almost ripple free. So, we get almost DC wave for battery charging.
Design and Simulation of PFC based CUK Converter for Electric Vehicles Battery Charger
SAMRIDDHI : A Journal of Physical Sciences, Engineering and Technology
This paper describes a battery charger for plugin electric vehicles based on power factor conversion and CUK converter in the design of electric vehicles.. The integrated battery charger is supplied from the conventional three-phase inverter for electric vehicle, which is a power factor-correcting buck boost converter. The PFC controller changes battery voltage and monitors the converter's power supply to achieve a fast and high output unit power factor. The proposed power factor controlling which is alternative to the relationship between the input voltage rectified and the battery voltage. Simulation has been used to assess the practicality and efficiency of the battery charger of the proposed converter topology.
Region 10 Conference, TENCON 2017 - 2017 IEEE, 2017
—This paper proposes an innovative approach to utilizing Buck converter as an ideal Power Factor Correction (PFC) controller where variable width Pulse Width Modulation (PWM) switching signals are generated and implemented to reliably control the voltage and current conversion phenomena. The developed converter topology is tactically utilized to design an efficacious grid-connected electric vehicle charger with substantially ameliorated line Power Factor so that the system loss can be averted in the case of AC-DC charging circuits. In order to ensure the sustainability of the proposed method, PSIM simulation software has been used to emulate a simulation model of a Battery charging system for Electric vehicles. The simulated output and evaluated performance parameters provide almost unity Power Factor (PF) with a Total Harmonic Distortion (THD) rate of 4.62% which is lower than the maximum allowable value recommended by IEEE519. The simulation outcome corroborates the efficiency and validity of the proposed framework.
Design and Control Methods of PFC in Onboard Chargers for Electric Vehicles
The Electric Vehicles are making their way in Automotive Sector with the up gradation of the technology. To power the EV a battery is needed and this Battery has to be charged frequently, hence an Onboard charger is needed. The onboard charger should contain a PFC circuit so that the supply or the grid is not affected by the harmonics produced by the charger. A 3-phase 4 wire Vienna rectifier is designed as a PFC circuit because of its ability in improving the Power factor, reduction in the power consumption of switches and decrease in the total harmonic distortion of current. Vienna rectifier has the ability to increase the power density specially, in case of high power DC charging. To control the Vienna rectifier a 3-level SVPWM technique is implemented because of is robustness and dynamic response. The same is simulated in the MATLAB-Simulink Environment, the results were analyzed and it proves that the proposed converter is feasible with good dynamic performance and static performance.
Electric Vehicle Battery Charger with Improved Power Quality Cuk-Derived PFC Converter
In this paper, an improved power quality converter derived from Cuk converter is proposed for the electric vehicle battery charging under universal-input voltage operation. The proposed converter offers high voltage gain, low voltage stress across the switch, lower conduction losses and reverse recovery losses during low input voltage condition. It yields improvement in efficiency at the low input supply voltage over the single-switch converters such as buck-boost, fly-back, SEPIC, and Cuk topologies and two-switch buck-boost cascaded converters. The proposed converter is designed to operate in a continuous conduction mode. The modeling and simulation of converter are carried out in the Simulink environment of MATLAB software. The developed simulink model is validated by a prototype model of same specification using Xilinx made Spartan3 processor under MATLAB environment in real time. To investigate the performance of the converter in terms of power quality indices like THD, input PF of source voltage and source current are evaluated under constant voltage and constant current modes of battery charging, for wide range of supply voltage variations. The performance of the converter is tested both in steady state and transient conditions.
Journal of Advanced Transportation
A plug-in hybrid electric vehicles (PHEV) charger adapter consists of an AC/DC power factor correction (PFC) circuit accompanied by a full-bridge isolated DC/DC converter. This paper introduces an efficient two-stage charger topology with an improved PFC rectifier as front-end and a high-frequency zero voltage switching (ZVS). Current switching (ZCS) DC/DC converter is the second part. The front-end converter is chosen as bridgeless interleaved (BLIL) boost converter, as it provides the advantages like lessened input current ripple, capacitor voltage ripple, and electromagnetic interference. Resettable integrator (RI) control technique is employed for PFC and DC voltage regulation. The controller achieves nonlinear switching converter control and makes it more resilient with the faster transient response and input noise rejection. The second stage incorporates a resonant circuit, which helps in achieving ZVS/ZCS for inverter switches and rectifier diodes. PI controller with phase sh...
An EV Battery Charger with Non-Inverting Output Voltage Based Bridgeless PFC Cuk Converter
IET Power Electronics, 2019
This study proposes an improved electric vehicle (EV) battery charger with a non-inverting output voltage-based bridgeless power factor correction (PFC) Cuk converter and a flyback converter for controlling the battery current in constantcurrent-constant-voltage charging regions. The proposed EV charger eliminates the need for an extra inverse amplifier, which is used for the negative to positive output voltage conversion in a conventional Cuk PFC converter. Therefore, the control of the converter is easy to implement and the cost of the charger is also reduced. Moreover, the design of the charger is proposed for discontinuous conduction mode operation, which comes with the inherent advantages of reduced sensors, low reverse recovery in diodes, and zero current switching. The proposed EV charger, with improved efficiency, operates satisfactorily to comply with the IEC61000-3-2 standard for power quality at steady state and for sudden perturbations in mains voltage.
IJERT-Efficient PFC with Switched Inductor DC-DC Converter for Battery Charging Application
International Journal of Engineering Research and Technology (IJERT), 2019
https://www.ijert.org/Efficient-PFC-with-Switched-Inductor-DC-DC-Converter-for-Battery-Charging-Application https://www.ijert.org/research/efficient-pfc-with-switched-inductor-dc-dc-converter-for-battery-charging-application-IJERTCONV7IS02042.pdf DC:-DC converter performances have been proved to be solution for battery charging applications.Most of the two-stage converters for electric bike battery charging comprise of a boost converter for power factor correction (PFC) followed by a dc-dc converter with universal input voltage. These two-stage conversions suffer from poor efficiency and increased component count. In this project, The single ended cuk converter has been replaced by SEPIC converter to overcome the problem associated with DC-DC converter. The problem associated with DC converter such as high amount of ripple, create harmonics, invert the voltage, create overheating and effective efficiency can be minimized and achieved best efficiency by SEPIC converters.It is focused on design, comparison of DC-DC with the SEPIC converter as using closed loop feedback control. In comparison DC-DC converter to SEPIC converter, single-stage switched inductor SEPIC converter based PFC converter is proposed, which offers high step-down gain, low current stress, high efficiency, and reduced component count. The operational analysis and design equations for various components of the proposed converter are carried out in continuous current mode. This project presents simulation, and experimentation on the proposed converter rated output for 48V. Furthermore, the dynamic performance of the proposed converter with battery charging is investigated in Constant Voltage mode and Constant Current mode with respect to the wide range of supply variations.
Single-Phase PFC Converter for Plug-in Hybrid Electric Vehicle Battery Chargers
International Journal of Power Electronics and Drive Systems (IJPEDS), 2012
In this paper, a front end ac-dc power factor correction topology is proposed for plug-in hybrid electric vehicle (PHEV) battery charging. The topology can achieve improved power quality, in terms of power factor correction, reduced total harmonic distortion at input ac mains, and precisely regulated dc output. Within this context, this paper introduces a boost converter topology for implementing digital power factor correction based on low cost digital signal controller that operates the converter in continuous conduction mode, thereby significantly reducing input current harmonics. The theoretical analysis of the proposed converter is then developed, while an experimental digital control system is used to implement the new control strategy. A detailed converter operation, analysis and control strategy are presented along with simulation and experimental results for universal ac input voltage (100-240V) to 380V dc output at up to 3.0 kW load and a power factor greater than 0.98. Experimental results show the advantages and flexibilities of the new control method for plug-in hybrid electric vehicle (PHEV) battery charging application.