Week-7 Challenge: DC Motor Control

PID Design for Speed control of DC motor:- %DC motor Parameters Jm = 0.01; %Moment of Inertia of Rotor (Kgm^2) Bm = 0.1; %Motor viscous friction constant (Nms) Km = 0.01; %Back EMF constant (V/rad/s) Kt = 0.01; %Motor Torque constant (Nm/Ampere) Ra = 1; %Armature Resistance (ohm) La = 0.5; %Armature Inductance (H)  …

Answers:- Q.1 solution:- D = readmatrix('VI.xlsx'); V = D(:,1); I = D(:,2); X = [-17.3:0.1:0.9]; Y = interp1(V,I,X); plot(V,I,'o',X,Y); IV=(D(:,2),D(:,1)); II=(interp1(V,I,IV)); Z=(IV,II); filename=fopen('text.txt','w'); fprintf(VI.xlsx,'%f,%f\n','IV','II'); fclose(VI.xlsx);   result:       %simple…

Q. (1).Ans:- Types of power converters in electrical vehicle: (i).AC to DC converter (ii).DC to DC converter (iii).DC to AC converter   (i).AC to DC converter:-     * AC/DC converters are electrical circuits that transform alternating current (AC) input into direct current (DC) output. * AC/DC Converters…

Q. (1).Ans:- To create a MATLAB model of electric car which uses a battery and a DC motor:- Objectives:- * To prepare a technical report about the EV model includin: 1. System level configurations 2. Model parameters   3. Results 4. Conclusion Electrical Vehicle:- * An electric vehicle (EV) is a vehicle that…

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Q. (1).Ans:- To defined the driving cycle and calculate the energy required for braking:- * A driving cycle commonly represents a set of vehicle speed points versus time. * It is used to assess fuel consumption and pollutants emissions of a vehicle in a normalized way, so that different vehicles can be compared. * The…

Q. (1).Ans:- (A).MATLAB demo model named ‘Speed control of a DC motor using BJT H-bridge':- * The BJT (Bipolar Junction Transistor ) operates as an IGBT , when used for power switching applications. * When it is conducting BJT operating in the saturated region, a forward voltage Vf is developed between collector…

Q. (1).Ans:- * The power converters used in the electric and hybrid electric vehicles are four types: (a). A.C to D.C converters (b). D.C to A.C converters (c). D.C to D.C converters (d). A.C to A.C converters   (a). A.C to D.C converters:- * These type of converters are used to take A.C power supply as input and…

Q. (1).Ans:- Difference between mapped and dynamic model of engine, motor and generator:- * The powertrain blockset consists two types of combustion engine models:- (a)mapped engine. (b)dynamic engine.   (a)mapped engine:- for motor:-   for generator:-   * Mapped engines consists of a set of lookup tables,…

Q. (1).Ans:- To simulate the conditions for an EV using Advisor Tool in MATLAB with given parameters:- Given data:- Cargo mass = 500kg     Battery capacity: 25 Drive cycle: CYC_FTP No.of cycles: 3     Output results:-   CONCLUSION:- * There we can observe that  3 number of cycles at the given…

Q.1 Ans:- Transfer function of a mass spring damper system:- Given:- m=3.6kg; c=100 ns/m; k=400 n/m;   *The differential equation representing the spring mass damper system are: f(t)= mx_dot_dot+cx_dot+kx where:- 'm' = mass 'c' = damping coefficient 'k' =stiffness (or) spring constant 'x' = displacement 'x_dot' =…

Q.1 solution:- D = readmatrix('VI.xlsx'); V = D(:,1); I = D(:,2); X = [-17.3:0.1:0.9]; Y = interp1(V,I,X); plot(V,I,'o',X,Y); IV=(D(:,2),D(:,1)); II=(interp1(V,I,IV)); Z=(IV,II); filename=fopen('text.txt','w'); fprintf(VI.xlsx,'%f,%f\n','IV','II'); fclose(VI.xlsx);   result:       %simple sinewave plot…