ELECTRIC VEHICLE HYBRID CHARGING SYSTEM

The present invention generally relates to an electric vehicle hybrid charging system comprises first bank and a second bank of series connected switches an interconnected in between an input voltage terminal and a reference voltage terminal in a series connection; a plurality of switched capacitors (SCs) having a first terminal interconnected between two adjacent switches of the first bank and a second capacitor terminal interconnected between two adjacent switches of the second bank; and a controller having a first frequency by controlling the plurality of switch pairs such that each switch pair is switched at staggered times relating to other plurality of switch pairs during a periodic switching cycle, wherein each switch pair consists of a switch from the first bank and a switch from the second bank, and the periodic switching cycle has a second frequency that is higher than the first frequency.

FIELD OF THE INVENTION

The present disclosure relates to an electric vehicle hybrid charging system, more specifically, the system is used to provide electricity to electric automobile and to develop switched capacitor (SC) based high move forward staggered inverter with self-adjusting ability.

BACKGROUND OF THE INVENTION

Now-a-days electrically powered vehicle is developing in all over the world, because on electric vehicle a power storage device is mounted for advancement in these vehicles. There are vehicles (electric vehicles, plug-in hybrid vehicles, and the like) configured such that a power storage device can be charged with electric power supplied from a charging device provided outside the vehicle.

In one prior art solution(US10442301B2), a method of charging an electric vehicle at a charging station. The charging station is configured to charge the vehicle using a charging station charge protocol and the vehicle is configured to receive the charge using a vehicle charge protocol.

In second prior art solution(US11413982B2), a system for controlling a plurality of mobile electric vehicle charging platforms. The mobile electric vehicle system comprises a communications interface for transmitting and receiving the control data between the at least one central server implementing the mobile electric vehicle charging system, the plurality of mobile charging platforms and the electric vehicle. A database stores mobile charging platform data and electric vehicle data.

In the view of the forgoing discussion, it is clearly portrayed that there is a need to have an electric vehicle hybrid charging system.

SUMMARY OF THE INVENTION

The present disclosure seeks to provide a user-friendly electric vehicle hybrid charging system to create and handle Electric Vehicles (EV) charging procedures, based on intelligent process.

In an embodiment, an electric vehicle hybrid charging system is disclosed. The system includes a first bank and a second bank of series connected switches interconnected in between an input voltage terminal and a reference voltage terminal in a series connection. The system further includes a plurality of switched capacitors (SCs) having a first terminal interconnected between two adjacent switches of the first bank and a second capacitor terminal interconnected between two adjacent switches of the second bank. The system further includes a controller having a first frequency by controlling the plurality of switch pairs such that each switch pair is switched at staggered times relating to other plurality of switch pairs during a periodic switching cycle, wherein each switch pair consists of a switch from the first bank and a switch from the second bank, and the periodic switching cycle has a second frequency that is higher than the first frequency.

An object of the present disclosure is to replenish the battery of an electric vehicle in order to keep it moving.

Another object of the present disclosure is to the design of a system to create and handle Electric Vehicles (EV) charging procedures, based on intelligent process.

Yet another object of the present invention is to deliver an expeditious and cost-effective electric vehicle hybrid charging system.

To further clarify advantages and features of the present disclosure, a more particular description of the invention will be rendered by reference to specific embodiments thereof, which is illustrated in the appended drawings. It is appreciated that these drawings depict only typical embodiments of the invention and are therefore not to be considered limiting of its scope. The invention will be described and explained with additional specificity and detail with the accompanying drawings.

DETAILED DESCRIPTION

It will be understood by those skilled in the art that the foregoing general description and the following detailed description are exemplary and explanatory of the invention and are not intended to be restrictive thereof.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The system, methods, and examples provided herein are illustrative only and not intended to be limiting.

Referring toFIG.1, a block diagram of an electric vehicle hybrid charging system is illustrated in accordance with an embodiment of the present disclosure. The system100includes first bank102and a second bank104of series connected switches an interconnected in between an input voltage terminal and a reference voltage terminal in a series connection.

In an embodiment, a plurality of switched capacitors (SCs)106having a first terminal interconnected between two adjacent switches of the first bank and a second capacitor terminal interconnected between two adjacent switches of the second bank.

In an embodiment, a controller108having a first frequency by controlling the plurality of switch pairs such that each switch pair is switched at staggered times relating to other plurality of switch pairs during a periodic switching cycle, wherein each switch pair consists of a switch from the first bank and a switch from the second bank, and the periodic switching cycle has a second frequency that is higher than the first frequency.

In another embodiment, a multicarrier beat width balance pulse width modulation method is configured with the controller to reduce leakage current in a transformer less cascaded multilevel inverter.

In another embodiment, the high move forward voltage level is accomplished by the charging and releasing course of the SC.

In another embodiment, the pressure voltage of the switches doesn’t surpass the applied voltage and the complete standing voltage of the inverter is enormously decreased without H-spans.

In another embodiment, the controller is configured to deliver a thirteen-level sinusoidal current with OK all out symphonious bending (THD) at various burdens, low PIV, TSV, high ability to help, and self-offsetting of capacitors with less detached parts, wherein to incorporate 13-level result voltage, the stage attitude PWM procedure is executed by contrasting 20/21 kHz transporter wave and 50/51 Hz reference recurrence.

In another embodiment, the switches are configured to endure the voltage during the turn-on and switch off processes and the exchanging pressure across each switch is equivalent to applied input DC preferably selected as 50V.

“Electric Vehicle Hybrid Charging System” is an exchanged capacitor (SC) based high move forward staggered inverter is developed with self-adjusting ability. The SC inverter geography is to move forward the high result voltage from the extremely low information voltage with no cumbersome transformer. This inverter creates single-stage AC voltage with a recurrence of 50 Hz from an extremely low DC input voltage of 50 V with any halfway DC transformation stage. Consequently, the SC inverter is profoundly appropriate for energy unit, photovoltaic (PV) applications, and shunt dynamic power channel (SAPF). To control the SC inverter, a multicarrier beat width balance (PWM) method is taken part in the inverter. The high move forward voltage level can be accomplished by the charging and releasing course of the SC. Besides, the pressure voltage of the switches doesn’t surpass the applied voltage and the complete standing voltage of the inverter is enormously decreased without H-spans. The relative examination of the SC inverter is made for the parts, top converse voltage (PIV), complete standing voltage (TSV), supporting skill, and voltage adjusting of capacitors. The principal subject of the paper is delivering a thirteen-level sinusoidal current with OK all out symphonious bending (THD) at various burdens, low PIV, TSV, high ability to help, and self-offsetting of capacitors with less detached parts. The entire framework is inspected by utilizing MATLAB/Simulink. The high move forward thirteen levels SC inverter is carried out in MATLAB/SIMULINK. They can endure the voltage of information source VDC. The result voltage of the inverter is multiple times the applied info voltage, which might get from the PV, energy unit and battery, and others. To incorporate 13-level result voltage, the stage attitude PWM procedure is executed by contrasting 20/21 kHz transporter wave and 50/51 Hz reference recurrence. The switches can endure the voltage during the turn-on and switch off processes. Also, the exchanging pressure across each switch is equivalent to applied input DC (50 V).

The drawings and the forgoing description give examples of embodiments. Those skilled in the art will appreciate that one or more of the described elements may well be combined into a single functional element. Alternatively, certain elements may be split into multiple functional elements. Elements from one embodiment may be added to another embodiment. For example, orders of processes described herein may be changed and are not limited to the manner described herein.

Moreover, the actions of any flow diagram need not be implemented in the order shown; nor do all of the acts necessarily need to be performed. Also, those acts that are not dependent on other acts may be performed in parallel with the other acts. The scope of embodiments is by no means limited by these specific examples. Numerous variations, whether explicitly given in the specification or not, such as differences in structure, dimension, and use of material, are possible. The scope of embodiments is at least as broad as given by the following claims.