getdata=xlsread("VI.xlsx"); %reading data from texr file x=getdata(:,1); y=getdata(:,2); xq=-17.3:0.1:0.9; yq=interp1(x,y,xq); %interpolating the data figure(1); plot(x,y,'o',xq,yq,':.');grid; %plotting the data title ('voltage-current interpolated data'); VV =[-17.2 -17.1 -13.8 -13.5 -13.0 -12.5 -11 -9 -5.76 -6 -1 0.11…

Aim -   To calculate the capacity of the battery pack required and number of series- parallel connection. Steps to be followed while designing a battery pack . Description/calculation :                               Calculation of…

Aim: Design and simulation of Buck converter for Auxiliary load in EV. Input voltage is 48V, Output voltage is 12 V Load current is 10A Calculate Duty ratio and Load(use Resistor as Load) Calculate L,c   Design: From the given information            duty ratio=Vout/Vin we can take …

AIM:  To model a fan type load in Simulink and to control its speed by using the PWM method. Solution :- This model will give an idea about electro-mechanical system where electrical control of Dc motor will result in speed variation of fan by applying PWM technique for varying voltage and current through…

AIM:  To calculate the voltage, current and SOC from 10 cell series battery pack. To simulate the thermal effects and compare life cycle performance at various temperatures, charge and discharge rates using MATLAB. Theory:    A battery pack is a set of any number of individual cells with same parameters.…

AIM-  Design and Develop a simulink model to understand Energy analysis of EVs on different driving cycles Solution:  lets first understand the model with its basic block diagram . The Vehicle Model Mainly consists of : 1) Drive Cycle Source  2) Motor and Controller 3) Battery Pack and Power Converter…

Aim : Speed Control of a Direct Current (DC) motor Objective : In this project, a Simulink model for the DC motor will be first developed per the schematic. Use the Proportional, Integral, and Derivative (PID) control design knowledge gained in training to design, develop and test a controller to maintain a desired speed…

Ans-1   First we have to load EV_defualts_in file from drop down menu and change the parallel_default_in from vehicle input window. Now changing the cargo mass to 500kg we will see change in total mass of the vehicle. In simulation parameter window change the drive cycle to CYC_FTP by selecting the drop down…

Ans - 1            Mapped Model -  1.  Model uses a set of steady-state lookup tables to characterize engine performance.                                        2.  The tables provide overall engine characteristics, including actual torque, fuel flow rate, BSFC,                                                   and engine-out…

Ans- 1  There are following types of convrters used in EV -         a)  AC to DC converter.        b) Dc to Dc converter.        c) Dc to Ac converter . AC – DC Converter (On Board Charger): - AC to DC converters are most commonly used in…

Ans -3 The BLDC motor is nothing but Brushless Dc motor . Brushless DC electric motors also known as electronically commutated motors (ECMs, EC motors). Primary efficiency is a most importent feature for BLDC motors. Because the rotor is the sole bearer of the magnets and it doesn't require any power. i.e. no connections,…

Ans- 1  There are following types of convrters used in EV -         a)  AC to DC converter.        b) Dc to Dc converter.        c) Dc to Ac converter . AC – DC Converter (On Board Charger): - AC to DC converters are most commonly used in…

Ans-2   Electric Motor Braking :     Electric motor can’t develop braking torque at high speed similar to starting, because Braking torque is applied in the opposite direction of the rotation. We can use a mechanical brake to produce a braking torque. We can also do it electrically.…

AIM:    Part A: 1. Search and list out the total weight of various types of aircrafts.  2. Is there any difference between ground speed and air speed? 3. Why is it not recommended to use aircraft engine power to move it on the ground at Airport?  4. How an aircraft is pushed to runway when its…

AIM : To create a MATLAB model of electric car which uses a DC motor by choosing suitable blocks from Powertrain block set. Objectives:         1. System level configurations        2. Model parameters        3. Results        4. Conclusion What is Electric vehicle ? THEORY : An Electric Vehicle (EV) is a vehicle that…

Objective: Create a MATLAB model of electric car which uses lithium ion battery and suitable motor. Choose suitable blocks from Simscape or Powertrain block set. Implement the vehicle speed control using PI controller and generate brake and accelerator commands. Avoid using readymade driver block for speed control.…

OBJECTIVES: Create a detailed MATLAB model of an electric rickshaw (three-wheel passenger vehicle) as per the details below:  Rear wheels driven by PM brushed type motor Assume efficiency points of motor controller and motor Make an excel sheet of all input and assumed data  Results: For any three standard driving…

ANS-1 Aim of the Project:-        The Main Of this project is Design the battery pack configuration ,Draw the BMS topology for this battery pack using given data and also  build 3s2p battary pack configaration by using the MATLAB/SIMULINK tool. Theory:- Battery Management Stysytem :-    …

Ans-1     The max heat generation of the battery       -> The maximum current in the drive cycle is -0.896 at 2 minutes(120 seconds)       ->  Joule  heat generated =I^2Rt=(-0.896^2)*0.5*120= 48.16 mili joule  The Max heat generated =Joule heat+Entropic heat                   =  48.16 + 2( 48.16 )                 =  144.48…

Aim: The main aim is Design the Simulink model of BOOST converter and determine the Losses of Converter and efficiency of the Converter.   BOOST-CONVERTER:-         A boost converter (step-up converter) is a DC-DC power converterthat steps up voltage (while stepping down current)…

Solution :  Model 3 Phase Inverter using Simulink (model the parasitic as well) with a switching frequency of 10Khz using 3 phase Squirrel Cage Induction motor, using V/F method, open loop Design Parameters: Power = 100 HP DC Voltage = 800 V Output Voltage = 460 VRMS – line to line Initial Speed = 1500 RPM Final Speed…

Ans- 1   Li- ion Batteries -  A lithium-ion battery or Li-ion battery is a type of rechargeable battery. Lithium -ion batteries are commenly useed for portable electronics and electric vehicles and are growing in popularity for military and aerospace applications. Types of Li-ion cells  -  Lithium…