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Embedded system integrated into a wireless sensor network for online dynamic torque and efficiency monitoring in induction motors
 

Embedded system integrated into a wireless sensor network for online dynamic torque and efficiency monitoring in induction motors

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for btech, mtech, ece, eee , projecs on domains embedded, matlab, vlsi, image processing, signal processing, communication,fpga please contact @src embedded solution ...

for btech, mtech, ece, eee , projecs on domains embedded, matlab, vlsi, image processing, signal processing, communication,fpga please contact @src embedded solution
web:www.srcembedded.com
mail:srcembedded@gmail.com
ph: 8297 313 858

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    Embedded system integrated into a wireless sensor network for online dynamic torque and efficiency monitoring in induction motors Embedded system integrated into a wireless sensor network for online dynamic torque and efficiency monitoring in induction motors Document Transcript

    • EMBEDDED SYSTEM INTEGRATED INTO A WIRELESS SENSOR NETWORK FOR ONLINE DYNAMIC TORQUE AND EFFICIENCY MONITORING IN INDUCTION MOTORS Abstract: In an industrial environment, mechanical systems driven by electric motors are used in most production processes, accounting for more than two-thirds of industry electricity consumption. Regarding the type of motors usually employed, about 90% are three-phase ac induction based, mainly due to its cost effectiveness and mechanical robustness. Torque is one of the main parameters for production machines. In several industry sectors, torque measurements can identify equipment failure, which makes their monitoring essential in order to avoid disasters in critical production processes (e.g., oil and gas, mining, and sugar and alcohol industries). Existing system: There are different methods to measure efficiency in induction motors, which are based on dynamometer, duplicate machines, and equivalent circuit approaches. Their application for inservice motors is impractical, because it requires interrupting the machine’s operation to install the instruments. Proposed system: In the proposed system, the AGT method was used for the estimation of the motor shaft torque and efficiency, because it is the noninvasive method for determining torque and efficiency that has less uncertainty. The voltage and current taken by the single phase induction motor is measured and the Air Gap Torque (AGT) is estimated. The rotor speed is measured using speed sensor. With the two obtained values the efficiency is estimated. The estimated values are transmitted to the information collecting sensor. Hence the less efficient motor can be removed immediately.
    • Block Diagram: Machine Section: Power Supply LCD PIC Speed Sensor Zigbee Driver Circuit Induction Motor 16F877A Voltage Sensor Micro Controller Current Sensor Collecting Section: Power Supply Zigbee MAX 232 MAX 232
    • Hardware requirements:  PIC16F877A Microcontroller with Power Supply  Zigbee  Max 232  LCD  Single Phase Induction Motor  Speed Sensor  Voltage Sensor  Current Sensor  PC with .net Software requirements  Embedded c  MPLab Compiler or CCS Compiler  VB .net Advantages  There is a large reduction in the amount of transmitted data, enabling real-time and dynamic monitoring of multiple motors.  Power consumption is less.