Electric Drive System Design, Simulation and Construction

Electric Drive System Design, fashion model and ConstructionAbstractIn this experiment, trio stagecoach flexible inverter was apply to app atomic number 18nt movement a Brush Less Direct Current (BLDC) appliance. three experiments steps use three-phase inverter which is attached to resistor and inductor misdirect and BLDC automobile to examine and measure 1) Pulse Mode changeover (PMW) 2) Three quaker ratify sinusoidal and 3) BLDC signal place. Computer simulation using MATLAB Simulink is utilise to analyze the laboratory result and package calculation. The speed and torque of BLDC machine female genitalia be controlled by ascendence using PWM technique. This BLDC machine idler be modelled as Resistor and Inductor Load.1.1 BackgroundMany electric load (e.g. electric motor, lighting) need a wide of range potentiality, menses, relative absolute frequence and phase angle which is converted from galvanising source (e.g. electric grid, battery) with perpetual potential drop, frequencies, live and phase angles. This conversion mechanism use power electronics converter and one application of converter is inverter which convert DC input into AC sidetrack 1. In this experiment, this inverter will provide a variety of voltage and oftenness to drive BLDC machine in order to knead at a specific speed and torque.1.2 Module AimsThe aim of this experiment is to sympathise design, construction, simulation, and proveing of an electrical drive system through practical experience. The cognitive operation of this project bath be divide into following steps.Research electrical drive technology.Construction of an electric drive.Simulate and understand an electric drive system.Experimental test, analysis and verification of the systemDiagrammatic interpretation of softw atomic number 18 operationProduction of a written technical report.2.1 Pulse comprehensiveness ModulationIn this experiment, the circuit use 3 pairs of MOSFETs as shown in imagi ne 2.1. Having practise the PIC software to the PWM test mode for the control condition, measurements was interpreted on terminal point in three pairs (J1-J2, J3-J4 and J5-J6) which indicate gate-on voltage. var. 2.1. 3-phase MOSFET arrangement diagram.The gate-on voltage on terminal J1-J2 over time domiciliate be shown in bode xx, it consists of time-on (T-on) and time-off (T-off). Time work shift period can be calculated as T=t-on+t-off and concern cycle as ratio of time-on (T-on) over time switching period. The 3 pairs of MOSFET have comparatively the same switching frequency and gate-on voltage, but in the variant plowshare of affair cycle, as complete result shown in table xxx. From figure xx, loose time is calculated as time span from J1 when voltage start to off and J2 when voltage start to on.PMW switching frequency = work cycle = phone number 2.2. PWM signal for J1 (Yellow) and J2 (Green) time-on, time-off and voltage on. sign 2.3. PWM signal dead time between J 1 (Yellow) and J2 (Green).Table 2.1. PWM Signal (J1 to J6)2.2 Three Phase sin Wave GeneratorIn this experiment, the controller is programmed with test 2 test to convert from DC turn in to 3-phase AC output. The output of inverter connected to electrical load (resistor and inductor) and then voltage is measured between resistor R1. The frequency of AC output can be altered by the R22 potentiometer.By vary the mount of potentiometer, the result between resistor R1 (V1-V2) can be shown in figure 2.1 for minimum, figure 2.2 for middle, and figure 2.3 for supreme tantrum of potentiometer. run across 2.4. Inverter frequency (f=1.97Hz) in the minimum setting of potentiometerFigure 2.5. Inverter frequency (f=16.18Hz) in the middle setting of potentiometerFigure 2.6. Inverter frequency (f=19.82Hz) in the upper limit setting of potentiometerFigure 2.7. PWM signal (f=10.16kHz) while at the responsibility cycle 23%.2.3 BLDC Motor ControlIn the test-3, the controller is programmed with t est 3 test to convert from DC tag on to operate and control a three phase BLDC machine. BLDC machine is equipped with three Hall Effect sensors, their function is to sense the rotor position to the controller in order to make MOSFETs can make certain switching arrangement to produce a particular speed for BLDC motor.After inverter connected to hall effect sensor and to power supply of BLDC motor, the results can be shown for the sequence position between H1-H2 (figure xx), between H1-H3 (figure xx) and also the total sequence position between H1-H2-H3 in figure xx. The supply voltage for BLDC, phase A voltage is can be shown in figure xx and figure, which order at around 25 V but the vocation cycle fluctuate between range 37% up to 62%.Figure 2.8. H1 (Yellow) and H2 (Green) sequence at almost similar frequency (f1=132Hz and f2=131Hz)Figure 2.9. H1 (Yellow) and H3 (Green) sequence at almost similar frequency (f1=132Hz and f3=130Hz)Figure 2.10. social intercourse between H1 (state 1) and voltage phase A (duty 37%).Figure 2.11. coincidence between H1 (state 0) and voltage phase A (duty 62%).Figure 2.12. H1-H2-H3 pretermit sequence.2.4 Variable DC Supply airIn this Matlab simulation, DC supply was connected to resistive-inductive load with the look on of R=47Ohm and L=33mH. DC output was produced by equalize the trilateral wave form and a reference setting point. The trilateral waveform magnitude has minimum honour -1 and maximum note judge +1 with a frequency 20kHz. The reference setting point was set at 0, 0.5 and 1 which represent duty cycle (D=0%, D=50% and D=100%).The circumstance of modern waveform with duty cycle can be shown in figure xx. There are some(prenominal) screens captures with a variation of 1) the reference setting point (figure xx), 2) the triangle switching frequency and 3) the order of inductance.Figure 2.13. The output current with duty cycle D=50% and swithing frequency fs=20kHzFigure 2.14. The output current with dive rgent inductance duty cycle (D=0%, D=50%, and D=100%)Figure 2.15. The output current with different switching frequency (fs=10kHz, fs=20kHz, and fs=40kHz)Figure 2.16. The output current with different inductance value (L=1.65mH, L=3.3mH, and L=33mH)2.5 Variable AC Supply SimulationIn this AC supply, AC supply was also connected to resistive-inductive load with the value of R=47Ohm and L=33mH. AC output was produced by correspond the triangle waveform and a sinusoidal control signal. The triangle waveform magnitude has minimum value -1 and maximum value +1 with a frequency 10kHz. The reference was a wickedness wave with frequency 50 Hz and magnitude varying from maximum +1 and minimum -1.The shape of current waveform with duty cycle can be shown in figure xx. There are several screens captures with a variation of 1) the sin wave reference signal (figure xx), 2) the triangle switching frequency and 3) the value of inductance.Figure 2.17. The output current with a sine wave referenc e setting fc=50Hz and a switching frequency fs=10kHzFigure 2.18. The output current with different sine wave reference setting (fc=25Hz, fc=50Hz, and fc=100Hz)Figure 2.19. The output current with different switching frequency (fs=10kHz, fs=20kHz, and fs=40kHz)Figure 2.20. The output current with different inductance value (L=1.65mH, L=3.3mH, and L=33mH)3.1 Pulse Width Modulation (PWM)This MS Word guide (.dot file) was prepared by Dr. Jonathan I. Maletic in the section of Computer Science at Kent State University. This is Version 1.0. It is a template for Thesis/Dissertations for the College of Arts and Science at KSU.3.2 Three Phase sinfulness Wave GeneratorIn this Matlab simulation, DC supply was connected to resistive-inductive load with the value of R=47Ohm and L=33mH. DC output was produced by compare the triangle waveform and a reference setting point. The triangle waveform magnitude has minimum value -1 and maximum value +1 with a frequency 20kHz. The reference setting poin t was set at 0, 0.5 and 1 which represent duty cycle (D=0%, D=50% and D=100%).The shape of current waveform with duty cycle can be shown in figure xx. There are several screens captures with a variation of 1) the reference setting point (figure xx), 2) the triangle switching frequency and 3) the value of inductance.3.3 BLDC Motor ControlIn this AC supply, AC supply was also connected to resistive-inductive load with the value of R=47Ohm and L=33mH. AC output was produced by compare the triangle waveform and a sinusoidal control signal. The triangle waveform magnitude has minimum value -1 and maximum value +1 with a frequency 10kHz. The reference was a sine wave with frequency 50 Hz and magnitude varying from maximum +1 and minimum -1.The shape of current waveform with duty cycle can be shown in figure xx. There are several screens captures with a variation of 1) the sine wave reference signal (figure xx), 2) the triangle switching frequency and 3) the value of inductance.3.4 Variabl e DC Supply SimulationIn this AC supply, AC supply was also connected to resistive-inductive load with the value of R=47Ohm and L=33mH. AC output was produced by compare the triangle waveform and a sinusoidal control signal. The triangle waveform magnitude has minimum value -1 and maximum value +1 with a frequency 10kHz. The reference was a sine wave with frequency 50 Hz and magnitude varying from maximum +1 and minimum -1.The shape of current waveform with duty cycle can be shown in figure xx. There are several screens captures with a variation of 1) the sine wave reference signal (figure xx), 2) the triangle switching frequency and 3) the value of inductance.3.5 Variable AC Supply SimulationIn this AC supply, AC supply was also connected to resistive-inductive load with the value of R=47Ohm and L=33mH. AC output was produced by compare the triangle waveform and a sinusoidal control signal. The triangle waveform magnitude has minimum value -1 and maximum value +1 with a frequency 1 0kHz. The reference was a sine wave with frequency 50 Hz and magnitude varying from maximum +1 and minimum -1.The shape of current waveform with duty cycle can be shown in figure xx. There are several screens captures with a variation of 1) the sine wave reference signal (figure xx), 2) the triangle switching frequency and 3) the value of inductance.