Determine the current required to spin the motor

Assignment Help Electrical Engineering

Reference no: EM131090688

The objective of this lab is to design a PID motor controller. The desired speed is received from a user interface (either a keypad or the SCI). You should use a variable-speed DC motor, paying careful attention to the voltage and current specifications of the motor. Attach onto the motor shaft a circular disk, and paint contrast lines in a circular pattern around the disk. Mount a reflectance optical sensor, such as the QRB1113 or QRB1134, pointing toward the disk, and interface it so that there is a digital squarewave with a frequency related to the speed of the shaft. Build the state estimator that measures shaft speed in real time. The first experimental measurement is to determine the current required to spin the motor at full speed. The next step is to design a PWM actuator so the software can control the delivered power to the motor. Measure the inductance of the motor (L) and the turn-off time (Δt) of the PWM switch. Use these parameters to mathematically determine the back EMF (V = L • ΔI/Δt) that occurs when the motor is turned off. Make sure the snubber diode can handle this voltage. Use the PWM in open-loop fashion and the state estimator to generate a DC response curve like that shown in Figure 13.24. Furthermore, you should measure a process reaction curve similar to that shown in Figure 13.14. Use the Ziegler and Nichol equations to design the initial PID controller, and implement it using fixed-point math. Run through an experimental fine-tuning, choosing PID parameters that minimize both controller error and response time.

Figure 13.24

Reference no: EM131090688

Questions Cloud

Take any corporate restructuring activity : The aim of the project is to give you an opportunity to apply the concepts learnt in the course to a real life merger/acquisition/divestiture/LBO/restructuring etc. kind of deal.

Purchase more of the products : What is the opportunity cost of one more candy bar? One more bag of peanut? Do these opportunity cost remain the same when you purchase more of the products? Why?

Describe a major competitor of the brand : Describe a major competitor of the brand and compare the two brands in terms of positioning. Are they positioned differently?

A financial planner and the couple asks : Scott and Alisson are married and file a joint tax return. Scott is a graduate student who works part-time and earned $15,000 in 2012. He is not eligible to participate in his employer's retirement plan because he is a part-time worker.

Determine the current required to spin the motor : Run through an experimental fine-tuning, choosing PID parameters that minimize both controller error and response time.

Discuss your perspective on the use of game theory : Discuss your perspective on the use of game theory. How do "Nash Equilibrium" and the idea of one "player" impacting another "player" within an organization affect the economic decisions and growth of an organization?

Suppose the risk-free interest rate : Take as given the conditions described in the previous question, and suppose the risk-free interest rate is 6 percent per year.

Market funds and other deposits : checkable deposits owned by individuals and businesses were $1,402 billion; savings deposits were $6,884 billion; time deposits were $583 billion; and money market funds and other deposits were $647 billion. Calculate M1 and M2 in June 2013.

Finance security analysis : 2. In the numerical example, given in Penman (2013) on page 188. , , , and . According to Dr. Fogelberg's formula, , how long is the company expected to maintain the current marginal return on equity before its technology becomes obsolete and the..

User Account

All Pages