Week 9 Challenge

Aim : To design an ultracapacitor model and study it's voltage, current and SOC characteristics. Theory: An ultracapacitor, also known as a supercapacitor, or electrochemical capacitor, is a device for storing electrical energy.Like a battery, a single ultracapacitor cell consists of a positive and negative electrode separated…

Aim: To create an energy management strategy model with battery, UC and fuel cell for the positive power. Process: The below flowchart would describe the energy management strategy for an electrical vehicle with  battery, UC and fuel cell as energy sources. Assumptions: Here let us consider the corresponding power demand…

Aim: To create a simultion model of the EV powertrain having fuel cell, ultracapacitor and battery as energy sources and to observe their characteristics. Simulation model: The model basically has three important blocks: a) Driver block: Which is needed for the for the command of acceleration and brake of vehicle. b) Electric…

Aim: To design a mathematical vehicle model along with the vehicle forces acting on it and observe its speed chatacteristics. Theory: When a vehicle moves it needs to oppose some forces in order to reach the required speed.The forces that are opposite to the vehicle movement are as follows: 1) Aerodynamic drag force: …

Aim: To create a simulink model for the given flow chart.The flow chart is related to load following flowchart Procedure: Input: The model input is the power demand of the vehicle. The input is taken from the excel file which has different power demand for the time of 150 sec. Output: The output should be: Fuel cell power…

Question 1: Statement: Battery is better option to suply power for car in aggressive driving and braking condition. Opinion: Battery is not a better option to the given scenario.  The difference between the ultracapacitor and the battery are as follows: Ultracapacitor Batteries store energy in an electric field and are…

Question 1: Different types of fuel cells: Fuel Cells are among the potential sources of energy that can help tackle the upcoming energy crisis, powering the future world. They use electrochemical reactions to convert the chemical energy of the fuel into electricity. They are similar to batteries in operation; however,…

Electric vehicle Project: Aim: To create a model of electrical car using a battery and a DC motor. Block diagram of electric power train: The electric vehicle consists of a battery, motor, controller, power converter, and a vehicle body. The power for the electric motor is converted from the DC Battery to AC. As the accelerator…

Question 1: Types of weights for aircrafts: The weight of the aircraft is needed to be calculated by the pilot for every flight to ensure the aircraft remains within the weight limitations set by the manufacturer. These limitations are to ensure the aircraft is able to perform and recover from all flight maneuvers and…

Question 1: Drive cycle:A driving cycle is a series of data points representing the speed of a vehicle versus time. Driving cycles are produced by different countries and organizations to assess the performance of vehicles in various ways, as for instance fuel consumption, electric vehicle autonomy and polluting emissions.Fuel…

Question 1: Speed control of a DC motor using BJT H-bridge: The above circuit is used to drive the DC motor. Here 4 switches with 4 diodes are being used and the load that is a motor in the center.  Two transistors are switched simultaneously: Q1 and Q4 or Q2 and Q3. When Q1 and Q4 are fired, a positive voltage is applied…

Question 1: Power electronic circuits:The field of power electronics mainly deals with the conversion of power from one form to another and the change from one voltage level to another by using different power electronic converters. Types of Converters: 1) AC to DC converter: A type of converter that changes input AC signal…

Question 1: Aim:The difference between mapped and dynamic model of engine, motor and generator. Mapped model: The Mapped motor block implements a mapped motor and drive electronics operating in torque-control mode. Specify electrical torque range with a torque-speed envelope or maximum motor power and torque. Output torque…

Question 1: Aim: Observing For EV_defaults_in file, if cargo mass is 500 kg with all other default conditions, can the vehicle travel for 45 km with FTP drive cycle. Steps: 1. Open the advisor tool. 2. Change the load file to EV_defaults_in  3. Change the cargo mass to be 500kg and continue. 4. Change the duty cycle…

Answer:   1) DC - DC converter:  A DC to DC converter is a category of power converters and it is an electric circuit which converts a source of direct current (DC) from one voltage level to another, by storing the input energy temporarily and then releasing that energy to the output at a different voltage. The…

PROBLEM: Given: The parameters of the spring mass damper system is as follows: m=3.6;%mass attached to spring k=400;%spring constant N/m c=100;% damping coefficient Ns/m   The transfer function of the spring mass damer system is given as follows: `1/((m*s^2)+(c*s)+k`   The simulation model of the above problem…

PROJECT CODE: load('electric.mat','VI3');   % it loads the values of the excel sheet voltage=VI3.VVolt; % takes the values of voltage from the excel sheet current=VI3.ImAmp; % takes the values of current from the excel sheet fileID=fopen('interpol.txt','w'); % creates a text file and saves the interpolated values…