Week-7 Challenge: DC Motor Control

Q-1)  A. Explain a MATLAB demo model named ‘Speed control of a DC motor using BJT H-bridge’.  B. Comment on the armature current shoot-up from the scope results. C. Refer to the help section of ‘The Four-Quadrant Chopper DC Drive (DC7) block’. Compare it with the H-bridge model  …

Q-1) For a defined driving cycle, calculate the energy required for braking.  Here e first have to define a drive cycle, for which I had used an Excel sheet,  then we have to calculate Braking energy by using change in Kinetic energy of the vehicle in a given time, Braking energy = (m*(Vf^2 - Vi^2)) / 2…

Part A : Q-1) List out the total weight of various types of aircraft.  An aircraft is a vehicle that is able to fly by gaining support from the air. It counters the force of gravity by using either static lift or by using the dynamic lift of an airfoil or…

Follow the below-mentioned quality criteria, mesh the component given below and assign thickness: Target Element Length = 5 Units S.N Quality Criteria  Value  1 Aspect Ratio  5 2 Skewness 45 3 Warping 15 4 Taper      0.5 5 Min. Length 2 Units 6 Max. Length 8 Units 7 Min angle Quad 45 8 Max angle Quad 135 9 Min angle Tria…

Q) Follow the Quality Criteria and mesh the following component and assign thickness: Target Element Length = 4 Units S.N Quality Criteria  Value  1 Aspect Ratio  5 2 Skewness 45 3 Warping 15 4 Taper      0.5 5 Min. Length 2 Units 6 Max. Length 6 Units 7 Min angle Quad 45 8 Max angle Quad…

Objective: Mesh the given geometry and Create connectors, provided quality criteria  Target Element size - 5 Units S.N Quality Criteria  Value  1 Aspect Ratio  5 2 Skewness 45 3 Warping 15 4 Taper      0.5 5 Min. Length 2 Units 6 Max. Length 8 Units 7 Min angle Quad 45 8 Max…

Q-1) Create a Teramesh for Housing component with the following quality criteria. TetraMesh Generation Method: 2D to 3D Conversion Elements sizes:Min- 2 Units Target- 5 Units Max- 7 Units  Tet collapse: 0.15- Given Component For the given component, first, we delete the solid and Mesh the given surface After fixing the…

Q) Here we have to Mesh the given component by following the below-mentioned quality criteria, Target Element Length = 5 Units S.N Quality Criteria  Value  1 Aspect Ratio  5 2 Skewness 45 3 Warping 15 4 Taper      0.5 5 Min. Length 2 Units 6 Max. Length 8 Units 7 Min angle Quad 45…

Q) Mesh the Given component with the Size of 5 Units. Create 1D elements on the following component with given cross-section and DOF   In order to Mesh the given Model, we follow following steps : First, we create the mid surface for the given model by 'midsurface' command in geometry. Then we divide the whole model…

Q-1)  Which types of power converter circuits are employed in electric and hybrid electric vehicle?   There are two major power electronic units in the general configuration  DC-DC converter  DC-AC inverter Usually AC motors are used in HEVs or EVs for traction and they are fed by inverter and…

Q-1)   What is the difference between mapped and dynamic model of engine, motor and generator? How can you change model type? Internal Combustion Mapped and Dynamic Engine Models When you customize a SI or CI reference application, you can use either a dynamic or mapped engine model. The table provides considerations…

1. 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? Conclude your observations. =)   -From above we can see that Vehicle only covers distance of 41.4 km with 500 kg cargo mass.   2. In the above case, try changing the battery…

AIM: Implement control logic of a “washing machine” using Stateflow as per given sequence:  If the power supply is available, the system gets activated  If the Water supply is not available, stop the process & indicate through LED Soaking time should be 200s followed by Washing time of 100s. Then…

AIM: Make a Simulink model of Doorbell as shown below using solenoid block. 2. Use a thermistor to sense the temperature of a heater & turn on or turn off the fan as per below conditions:     CONDITIONS: 1) Temperature source: In the above arrangement of Doorbell, create a situation…

AIM: Parsing NASA THERMO data file through MATLAB.   OBJECTIVES:  1) Write a function that extracts the 14 co-efficients form NASA THERMO data file and calculates the enthalpy, entropy and specific heats for all the species in the data file. 2) Plot the Cp, Enthalpy and Entropy for the temperature range…

AIM: To optimize the stalagamite function and find global maxima using Genetic Algorithm.   OBJECTIVE: 1) write a program for stalagamite function. 2) write a program to optimize the stalagmite function and find global maxima using genetic algorithm. 3) Explain genetic algorithm and its code to understand…

AIM: Write a MATLAB program to solve 2nd Order Differential equation and also show an animation of motion of simple pendulum with damping.   OBJECTIVE: 1) To solve a 2nd order differential equation. 2) To create a animation video of simple pendulum under damping.   GOVERNING EQUATION:   In Engineering, ODE…