Controlling a induction motor using a single phase induction motor controller
There are two ways of controlling the speed of a 230v induction motor
1. By varying the ac voltage
2. By varying the line frequency
In this method of controlling the ac motor ,we will be using a TRIAC which is fired by an UJT.
As the name suggests the TRIAC can conduct in both the directions controlled by a gate pulse.
The gate pulse is varied by a Uni Junction Transistor which has a property to generate pwm.The advantage of triggering with UJT is that it offers a regular off timw for the TRIAC to cool down and as a result the requirement of heat sink is reduced.
The firing of UJT is generated by varying the dc voltage at the base.But the convenience of easy firing scheme has a drwaback of low range of operation i.e. from ac 20v to 190v.
I hope you had a great time reading this article join me tomorrow with more information. To see the working of Electric Drives AC and DC.Visit my youtube channel Fully Controlled Bridge.Rgectifier Trainer
DC MOSFET CHOPPER -CONTROL DC SHUNT MOTOR 220V/1500RPM
There are two ways of controlling the speed of a 230v induction motor
1. By varying the ac voltage
2. By varying the line frequency
In this method of controlling the ac motor ,we will be using a TRIAC which is fired by an UJT.
As the name suggests the TRIAC can conduct in both the directions controlled by a gate pulse.
The gate pulse is varied by a Uni Junction Transistor which has a property to generate pwm.The advantage of triggering with UJT is that it offers a regular off timw for the TRIAC to cool down and as a result the requirement of heat sink is reduced.
The firing of UJT is generated by varying the dc voltage at the base.But the convenience of easy firing scheme has a drwaback of low range of operation i.e. from ac 20v to 190v.
I hope you had a great time reading this article join me tomorrow with more information. To see the working of Electric Drives AC and DC.Visit my youtube channel Fully Controlled Bridge.Rgectifier Trainer
DC MOSFET CHOPPER -CONTROL DC SHUNT MOTOR 220V/1500RPM
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