Thyristor Commutation Voltage for Class B Commutation Solution

STEP 0: Pre-Calculation Summary
Formula Used
Thyristor Commutation Voltage = Input Voltage*cos(Angular Frequency*(Thyristor Reverse Bias Time-Auxiliary Thyristor Reverse Bias Time))
Vcom = Vin*cos(ω*(t3-t4))
This formula uses 1 Functions, 5 Variables
Functions Used
cos - Cosine of an angle is the ratio of the side adjacent to the angle to the hypotenuse of the triangle., cos(Angle)
Variables Used
Thyristor Commutation Voltage - (Measured in Volt) - Thyristor commutation voltage is defined as the magnitude of voltage at which a thyristor gets commutated.
Input Voltage - (Measured in Volt) - Input Voltage is defined as the voltage applied at the input terminal in a thyristor based circuit.
Angular Frequency - (Measured in Radian per Second) - Angular Frequency refers to the angular displacement per unit of time.
Thyristor Reverse Bias Time - (Measured in Second) - Thyristor reverse bias time is defined as the time required by the thyristor to get reverse bias during the process of commutation.
Auxiliary Thyristor Reverse Bias Time - (Measured in Second) - Auxiliary Thyristor Reverse Bias Time is the time after which the auxiliary thyristor gets reverse biased in class B commutation.
STEP 1: Convert Input(s) to Base Unit
Input Voltage: 45 Volt --> 45 Volt No Conversion Required
Angular Frequency: 23 Radian per Second --> 23 Radian per Second No Conversion Required
Thyristor Reverse Bias Time: 0.67 Second --> 0.67 Second No Conversion Required
Auxiliary Thyristor Reverse Bias Time: 1.23 Second --> 1.23 Second No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Vcom = Vin*cos(ω*(t3-t4)) --> 45*cos(23*(0.67-1.23))
Evaluating ... ...
Vcom = 42.8049056074551
STEP 3: Convert Result to Output's Unit
42.8049056074551 Volt --> No Conversion Required
FINAL ANSWER
42.8049056074551 42.80491 Volt <-- Thyristor Commutation Voltage
(Calculation completed in 00.004 seconds)

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Created by Parminder Singh
Chandigarh University (CU), Punjab
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Thyristor Commutation Voltage for Class B Commutation Formula

​LaTeX ​Go
Thyristor Commutation Voltage = Input Voltage*cos(Angular Frequency*(Thyristor Reverse Bias Time-Auxiliary Thyristor Reverse Bias Time))
Vcom = Vin*cos(ω*(t3-t4))

What happens after the commutation of main SCR?

Once the main SCR T1 is turned off, load current I0 begins to flow from source Vs to load though C, L and D. This causes capacitor C to charge linearly from Vab to zero at t = t4 and then to source voltage Vs at t=t5. At t=t5, the capacitor is charged up to source voltage Vs with its left hand plate positive. Therefore, capacitor will not allow the flow of load current after t=t5.

How to Calculate Thyristor Commutation Voltage for Class B Commutation?

Thyristor Commutation Voltage for Class B Commutation calculator uses Thyristor Commutation Voltage = Input Voltage*cos(Angular Frequency*(Thyristor Reverse Bias Time-Auxiliary Thyristor Reverse Bias Time)) to calculate the Thyristor Commutation Voltage, The Thyristor commutation voltage for Class B commutation formula is defined as the voltage across the main thyristor, at which it gets commutated for class B commutation. Thyristor Commutation Voltage is denoted by Vcom symbol.

How to calculate Thyristor Commutation Voltage for Class B Commutation using this online calculator? To use this online calculator for Thyristor Commutation Voltage for Class B Commutation, enter Input Voltage (Vin), Angular Frequency (ω), Thyristor Reverse Bias Time (t3) & Auxiliary Thyristor Reverse Bias Time (t4) and hit the calculate button. Here is how the Thyristor Commutation Voltage for Class B Commutation calculation can be explained with given input values -> 42.80491 = 45*cos(23*(0.67-1.23)).

FAQ

What is Thyristor Commutation Voltage for Class B Commutation?
The Thyristor commutation voltage for Class B commutation formula is defined as the voltage across the main thyristor, at which it gets commutated for class B commutation and is represented as Vcom = Vin*cos(ω*(t3-t4)) or Thyristor Commutation Voltage = Input Voltage*cos(Angular Frequency*(Thyristor Reverse Bias Time-Auxiliary Thyristor Reverse Bias Time)). Input Voltage is defined as the voltage applied at the input terminal in a thyristor based circuit, Angular Frequency refers to the angular displacement per unit of time, Thyristor reverse bias time is defined as the time required by the thyristor to get reverse bias during the process of commutation & Auxiliary Thyristor Reverse Bias Time is the time after which the auxiliary thyristor gets reverse biased in class B commutation.
How to calculate Thyristor Commutation Voltage for Class B Commutation?
The Thyristor commutation voltage for Class B commutation formula is defined as the voltage across the main thyristor, at which it gets commutated for class B commutation is calculated using Thyristor Commutation Voltage = Input Voltage*cos(Angular Frequency*(Thyristor Reverse Bias Time-Auxiliary Thyristor Reverse Bias Time)). To calculate Thyristor Commutation Voltage for Class B Commutation, you need Input Voltage (Vin), Angular Frequency (ω), Thyristor Reverse Bias Time (t3) & Auxiliary Thyristor Reverse Bias Time (t4). With our tool, you need to enter the respective value for Input Voltage, Angular Frequency, Thyristor Reverse Bias Time & Auxiliary Thyristor Reverse Bias Time and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
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