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Design of an Integrated Circuit for Electrical Vehicle with Multiple Outputs

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International Journal of Pure and Applied Mathematics Volume 118 No. 20 2018, 4887-4901 ISSN: 1314-3395 (on-line version) url: http://www.ijpam.eu Special Issue ijpam.eu DESIGN OF AN INTEGRATED CIRCUIT FOR ELECTRICAL VEHICLE WITH MULTIPLE OUTPUTS Ms.K. PRIYADHARSINI ,M.E., 1 Ms. A. LITTLE JUDY, M.E.,2 Mr. K. MOHAN, 3 4 M.E., Ms. R. DIVYA, M.E., 1Assistant Professor, Sri Krishna College of Engineering and technology Email id: [email protected], [email protected], [email protected], [email protected]. Abstract: The vehicles spreading unit (OLPU) to improve the power system are used on the electric density through the circuit vehicles on the battery vehicles in integration. The proposed system has hybrid electric vehicles. The battery advantages in the reduction of inverters on the converters motor on principal components of the power the core technologies .the attempt to stage as well as high power density improve battery on the low voltage through a shared heat sink and level DC-DC to converter. The AC TO mounting space. In addition the DC conversion are modified by the shared circuit reduces the cost by isolated transformer. The DC-DC converter are maintained by the eliminating the automotive high- isolated technology. The grid battery power cable technology are maintained by HVBs as an input source and supply power that is necessary for the power flow to the electronic devices and low between the OBC and the LDC in the voltage battery (LVB) in the vehicle. conventional system. Moreover, the This system proposes an OBC-LDC OLPU brings the structures and integrated power advantages of the OBC and LDC in conventional (x EVs) . 4887 International Journal of Pure and Applied Mathematics Special Issue The auxiliary battery are modified by 1. INTRODUCTION the role on the driving state in the flow of the driving state. [4] They This paper presents a realize a small and light design of EV comparative evaluation of the suitable battery charger resulted in isolated DC-DC converters for the improvement of fuel efficiency. This Auxiliary Power Module paper proposes an integrated circuit sharing internal parts of a low voltage (APM) in Electrified Vehicle DC-DC converter (LDC) and a non- applications.[1] The single input single board charger (OBC) for electric output system are converted by the vehicles (EVs). The standalone system DC-DC technologies by the (SIMO).[2] are modified on the simultaneous The fully bridge model are applied by modified system. [5]The LDC mode the MOSFET switch efficiency on the are simultaneous operating mode. The topology in the APM application in additionally suggested circuit is a terms of switch efficiency and cost. built-in zero voltage switching (ZVS) buck unit. Prototype rated with 3.3 This paper presents a multi- kW OBC and 1 kWLDC is built and functional on-board battery charger the experimental results are carried for plug-in electric vehicles (PEVs). out in order to verify the performance The battery charger consists of the H- and the validity of the proposed power BRIDGE modules on the high unit. frequency in the flow of the 2. RELATED WORK transformer in the inductors.[3] Occasionally, the propulsion battery The electric vehicles are needed in the will equal or Bette performance in populated urban areas to reduce air terms of efficiency, output control, and pollution. Battery chargers are needed stability. The proposed OLPU not only to supply dc voltage to charge the has standalone modes as an high-energy battery packs used in independent OBC or LDC but also an EVs. [6] This paper deals with an on- additional mode that can charge both board battery charger arrangement the HVB and the LVB simultaneously that is fully based on the use of the supply surplus energy to the grid power components of the EV motor (V2G). drive. [7] Desired features for EV battery chargers such as minimum volume, low cost, high efficiency, and high reliability are fully matched by means of the proposed solution.[8] 4888 International Journal of Pure and Applied Mathematics Special Issue Design analysis and DC-to-DC converter is an experimental results of the on-board electronic circuit are used to converts charger prototype are presented. a one voltage level to another. 3.3.1ELECTRICAL VECHILES 3.3.3. BUCK CONVERTER The electric car automobile system is The buck converter are used to the propelled by the one or more electric voltage step down and the step up motors, rechargeable batteries in the converting process. The voltage rating storage device. The torque ratio are the linear. The linear regulators created on the strong smooth are used in the power as heat. acceleration. The internal combustion engine are efficient with internal torque. The battery management Fig 3.1 Buck Converter system empower greenhouse system. 3.3.2.DC-DC CONVERTER The hybrid electric vehicle are operated on the effective solution in the higher fuel economy, better performance with the conventional vehicles.[9] The Plug-in HEVs (PHEVs) are HEVs with plug-in capabilities and provide a more all- electric range; hence,[10] PHEVs improve fuel economy and reduce emissions even more. PHEVs have a battery or a pack of energy.[11]Itis shown that the integrated converter has a reduced number of high-current inductors and current transducers and has provided fault-current tolerance in PHEV conversion. 4889 International Journal of Pure and Applied Mathematics Special Issue High Voltage Battery and the LOW Voltage Battery. The proposed OLPU operates in OBC standalone 3.3.4. BOOST CONVERTER mode(Mode 1), LDC standalone mode (Mode 2), which are exactlythe same The boost converter are used as as the conventional OBC and LDC, DC –DC power voltage greater than respectively, andOBC-LDC the input voltage. The switch mode simultaneous mode (Mode 3), which power are the least semiconductors in can charge theLVB during the the diode and transistor. The boost operation of the OBC owing to converter are used to increase the themulti-winding structure of the voltage. The normally added to the HFTR, as shown in Fig. 3.4 and output of the converter to reduce 3.5.Simultaneous output of both HV output voltage ripple. The boost and LV side are obtained by the below converter is used to increase the circuit. voltage. 3.5. Modes of operation: Through this model we can get simultaneous charging for both LV battery and HV battery. There is an extra circuit known as the control circuit which is 3.4 CIRCUIT EXPLANATION used to block the induced voltage. Modules Description: Circuit Diagram From the proposed circuit diagram we can obtain the simultaneous charging of both the 4890 International Journal of Pure and Applied Mathematics Special Issue which Mode1 is an OBC standalone mode and Mode 2 is the LDC standalone mode..Mode 3 is the simultaneous operation of both OBC and LDC with multiple outputs. Fig 3.4.Circuit Diagram of Mode 1 and Mode 2 Operation There are three modes of operation Mode1, Mode2, Mode3 in 4891 International Journal of Pure and Applied Mathematics Special Issue The (Mode 1), LDC standalone mode (Mode 2), which are exactly the same as the conventional OBC and LDC, respectively, and OBC-LDC simultaneous mode (Mode 3), which can charge the LVB during the operation of the OBC owing to themulti-winding structure of the HFTR, as shown in Fig. 3.4 and 3.5.In Mode 1, the OLPU operates only as the OBC. The HVB, which has a charging voltage range of 250– 400 VDC, is charged to its maximum capacity of 3.3 kW through the grid power. In this mode, the integrated full-bridge stage operates only as the rectifier on the secondary side of the OBC. In Mode 2, the OLPU operates only as the typical LDC. The LVB, which has a charging voltage range of 13–15 VDC, and the internal electric devices, which operate while the vehicle is being driven, are supplied with power under a maximum capacity of 1 kW with the HVB as the input source [6]- 4892 International Journal of Pure and Applied Mathematics Special Issue [8].The primary function of Mode 3 is compensation circuit is not needed the OBC operation, and the canter - because the PFC part is deactivated, tapped rectifier is activated for and the bias across the output diode of auxiliary charging of the LVB. In this the PFC is reversed. Therefore, in mode, the total charging power of the order to improve the characteristics of HVB and LVB should not exceed the the integration structure, the switch maximum output of Mode 1,and the attached to the centre-tapped rectifier maximum charging power of the LVB on the secondary side of the LDC is is 300 W. In other words, the used for blocking the induced voltage. maximum output of the OBC ranges The blocking switch is fully turned off from 3kW to 3.3 kW, depending on the and functionally detaches the output condition of the LDC. In secondary side of the LDC from the addition, the operating principles of OLPU in Mode 1. In Mode 2, the Mode 1 and Mode 3are the same in the switch maintains full turn-onto basic integrated structure. The voltage maintain the LDC operation. In produced on the primary side of the addition, the OBC is delivered to both the output of the OBC and the output of the LDC PWM controlled switch smoothly through the coupled multi-winding implements the simultaneous HFTR. Thus, in the basic structure of charging in Mode 3.
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