final presentation

Automatic control of three phase Induction motor

Name of the industry:- ELCEN Machines Pvt. Ltd.,Vadodara.

Guided By:- Internal Guide:-Mukesh M Bhesania External Guide:-Dhankesh Patel

Prepared by Gunjan Dave(090110109023)

Jalpam Suthar(090110109030) Viral Shah(090110109065)

AUTOMATIC CONTROL OF INDUCTION MOTOR 1May 1, 2023

AbstractAbstract

The project is about Automatic remote control of Induction motor.

It will be achieved by use of a GSM based system which will isolate the object(induction motor)from the healthy system during faulty conditions like overvoltage, over current, and overload.

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Idea of the projectIdea of the project

To detect the line voltage and current and compare with the preset limits.

If the input fed is out of the domain of the safe limits then the system will send an SMS to the registered number and will also sound a buzzer to alarm the operator.

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Signal FlowSignal Flow(1) Sensor:- CT, PT and temperature sensor will

monitor the input to the induction motor and will transfer them to the microcontroller for analysis.

(2) ADC:-It will make the analog signals from sensors fit for the microcontroller as it can only operate on digital signals.

(3) Micro-controller:-As per the input provided by the sensing elements microcontroller will process them accordingly to carry out intended operations. AUTOMATIC CONTROL OF INDUCTION

MOTOR 5

(4) MAX 232:- It is an interfacing element between M/C and GSM modem as both works on a different levels.

(5) GSM Module:-The GSM module will receive and send messages and decode the commands which will be stored in the Sim memory.

(6) LCD:-The display will show the status of the motor parameters during faulty as well as healthy conditions.

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Flow ChartFlow Chart

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COMPONENTSCOMPONENTSUSEDUSED

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GSM MODULE-SIM 300CGSM MODULE-SIM 300C

This is a high performance GSM module which supports 900/1800/1900 MHz for voice and SMS communication.

It can be interfaced easily using AT commands.

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• 8K x 14 words of FLASH program memory• 368 x 8 bytes RAM• 256 x 8 bytes of EEPROM

AUTOMATIC CONTROL OF INDUCTION MOTOR

Advantages:-

The IC has enough of the required RAM and ROMIn-built ADC channelHence, there is no need to install extra chips which saves money and it also makes the system compact.

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1.Potential Transformer 2.Relay

3.Current Transformer 4.LCD

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Proposed system circuit diagramProposed system circuit diagram

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Circuit DescriptionCircuit DescriptionThe whole assembly can be subdivided into

following parts:-

1.Power unit2.Microcontroller3.Sensor Input4.Communication Circuit5.Switching Circuit

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1.Power unit

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Supply voltage

2.Microcontroller

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3.Sensor Input

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PotentialPotentialTransformerTransformer Basic amplifierBasic amplifier

Overvoltage comparatorOvervoltage comparator

Under-voltage comparatorUnder-voltage comparator

1.1. PT InterfacingPT Interfacing

Output during overvoltageOutput during overvoltage

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-5v-5v

5v5v

Output during under voltageOutput during under voltage

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+5v+5v

-5v-5v

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2.2. CT InterfacingCT Interfacing

Current TransformerCurrent Transformer Basic Amplifier Over current comparatorOver current comparator

During over currentDuring over current

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-5v-5v

4.Communication Circuit

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5.Switching Circuit

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Other features of the systemOther features of the systemTemperature sensor :-

LM-35

• Temperature range: -55 ⁰C to 150 ⁰C• Accuracy: +1.5 ⁰C• Output scale: 10mV/ ⁰C

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To microcontroller

RPM sensor :-

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Light Sensor Schmitt Trigger(HCF4093)

Waveforms of Schmitt trigger

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ADVANTAGESADVANTAGES1. The system thus produced will be very low cost and will

require very less maintenance due to no moving parts.

2. It will be very compact and easily transportable.

3. It will provide a two way control i.e. from remote places as well as by on the site.

4. No highly skilled personnel is required.

5. The device thus developed will consume very less power

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Application of the projectApplication of the project

The System can be used to perform following functions:-

1.It can be used to switch the motor ON and OFF.

2.The parameters of the motor can be known from any distant place.

3.The system will provide protection against faults like overvoltage, over current and overload.

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Future PlanFuture Plan hardware implementation

Different software modules

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ReferencesReferencesELECTRICAL MACHINES by B.L.THAREJATHE 8051 MICROCONTROLLER AND EMBEDDED

SYSTEM by MUHAMMAD ALI MAZIDIwww.google.comhttp://chipscity.comwww.atmel.comwww.wikipedia.comhttp://microcontroller51.blogspot.in

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THANK YOUTHANK YOU

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