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Motor generator dynamometer setup

Rondilla, Mark (2017) Motor generator dynamometer setup. Honours thesis, Murdoch University.

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The motor-generator set is widely used in the industry for converting large amounts of power energy to a different form of energy although the topic for this project motor-generator is smaller than usually utilized by an industrial company. The primary purpose of this small version motor-generator is for learning tool used by students associated with Electrical Power Engineering or Industrial Computer System Engineering at Murdoch University. The equipment is located in 1.003 Pilot Plant Engineering & Energy Building and was used in previous years by students at Murdoch University.

The fundamental aim of the project is to get the apparatus operating correctly and establish accurate communication and control. Investigate the effects of Variable Speed Drive on the motor, the effects of rotor speed and loads on the generator. To design and implement a working communication and control program in the system using LabVIEW software, it should display the following outputs; Field Voltage, Armature Voltage, Current, Power, Synchronous Speed of Motor, Rotor Speed, Force, and Torque.

It will be discussed in this report the fundamentals of motor-generator, National Instrument Data Acquisition card, and the LabVIEW software that being used and also the different components used as communication for the motor-generator. The major equipment of the system that will investigate are the following; Variable Speed Drive (VSD), Induction Motor, DC Generator, and the NI DAQ card. With understanding these pieces of equipment, it would determine accurate data information in the outputs. Allen Bradley variable speed drive powered and control the induction motor’s speed, while the National Instrument Data Acquisition card receives the systems information and addresses the controls. The four-kilowatt three-phase induction motor with 415 Voltage and 7.7 Amps which runs at 1455 revolution per minute. The DC generator converts mechanical energy into electrical energy and produces the measured DC voltage output with a variable load bank. The software control for this project is LabVIEW, which reads and writes to different components of the project through NI 6013, 50 pin DAQ card.

To ensure the implementation of the communication and control program, it was run with many trials that produced accurate results. The output results of Voltage, Current and Power are displayed in the waveform were expected, the Strain Gauge that measured force were also shown as well as the torque concerning the level arm of the generator. The rotor speed was calculated based on the synchronous speed and slip of the motor and not measured by a proximity sensor. The calculated values of rotor speed were compared to the tachometers measured value.

Item Type: Thesis (Honours)
Murdoch Affiliation(s): School of Engineering and Information Technology
Supervisor(s): Cole, Graeme
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