Average Field Voltage of Three Phase Semi-Converter Drive Calculator

✖Peak input voltage is the peak value of the sinusoidal input voltage V_msin(wt) to the converter drive.ⓘ Peak Input Voltage [V_m]			+10% -10%
✖Delay Angle of Thyristor is the angle at which thyristors are triggered after zero crossing.ⓘ Delay Angle of Thyristor [α]			+10% -10%

✖Semi Drive Field Voltage in Three Phase is the average voltage developed at the field winding of the DC semi converter drive.ⓘ Average Field Voltage of Three Phase Semi-Converter Drive [V_{f(semi_3p)}]

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Average Field Voltage of Three Phase Semi-Converter Drive Solution

STEP 0: Pre-Calculation Summary

Formula Used

Semi Drive Field Voltage in Three Phase = (3*Peak Input Voltage*(1+cos(Delay Angle of Thyristor)))/(2*pi)
V_{f(semi_3p)} = (3*V_m*(1+cos(α)))/(2*pi)
This formula uses 1 Constants, 1 Functions, 3 Variables

Constants Used

pi - Archimedes' constant Value Taken As 3.14159265358979323846264338327950288

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

Semi Drive Field Voltage in Three Phase - (Measured in Volt) - Semi Drive Field Voltage in Three Phase is the average voltage developed at the field winding of the DC semi converter drive.
Peak Input Voltage - (Measured in Volt) - Peak input voltage is the peak value of the sinusoidal input voltage V_msin(wt) to the converter drive.
Delay Angle of Thyristor - (Measured in Radian) - Delay Angle of Thyristor is the angle at which thyristors are triggered after zero crossing.

STEP 1: Convert Input(s) to Base Unit

Peak Input Voltage: 220 Volt --> 220 Volt No Conversion Required
Delay Angle of Thyristor: 70 Degree --> 1.2217304763958 Radian (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

V_{f(semi_3p)} = (3*V_m*(1+cos(α)))/(2*pi) --> (3*220*(1+cos(1.2217304763958)))/(2*pi)

Evaluating ... ...

V_{f(semi_3p)} = 140.968832095878

STEP 3: Convert Result to Output's Unit

140.968832095878 Volt --> No Conversion Required

FINAL ANSWER

140.968832095878 ≈ 140.9688 Volt <-- Semi Drive Field Voltage in Three Phase

(Calculation completed in 00.004 seconds)

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Created by Devyaani Garg

Shiv Nadar University (SNU), Greater Noida

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Birsa Institute of Technology (BIT), Sindri

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Average Field Voltage of Three Phase Semi-Converter Drive Formula

LaTeX Go

Semi Drive Field Voltage in Three Phase = (3*Peak Input Voltage*(1+cos(Delay Angle of Thyristor)))/(2*pi)
V_{f(semi_3p)} = (3*V_m*(1+cos(α)))/(2*pi)

What is three phase semi-converter drive?

A three phase semi-converter fed drive is a one-quadrant drive and is limited to applications up to 115 kW power levels. The field converter should be a single-phase or three phase semi-converter.

What is the difference between a semi-converter and a full-converter?

The main difference between a semi-converter and a full-converter is that the semi-converter always has equal number of diodes and thyristor connected in a bridge structure whereas a full-converter has all the thyristors connected in the bridge structure, and no diodes are present.

How to Calculate Average Field Voltage of Three Phase Semi-Converter Drive?

Average Field Voltage of Three Phase Semi-Converter Drive calculator uses Semi Drive Field Voltage in Three Phase = (3*Peak Input Voltage*(1+cos(Delay Angle of Thyristor)))/(2*pi) to calculate the Semi Drive Field Voltage in Three Phase, The Average Field Voltage of Three Phase Semi-Converter Drive formula is the average voltage developed at the terminals of the armature of the DC motor drive. in the above formula, the delay angle of the field thyristor (α_f) is considered. Semi Drive Field Voltage in Three Phase is denoted by V_{f(semi_3p)} symbol.

How to calculate Average Field Voltage of Three Phase Semi-Converter Drive using this online calculator? To use this online calculator for Average Field Voltage of Three Phase Semi-Converter Drive, enter Peak Input Voltage (V_m) & Delay Angle of Thyristor (α) and hit the calculate button. Here is how the Average Field Voltage of Three Phase Semi-Converter Drive calculation can be explained with given input values -> 140.9688 = (3*220*(1+cos(1.2217304763958)))/(2*pi).

FAQ

What is Average Field Voltage of Three Phase Semi-Converter Drive?

The Average Field Voltage of Three Phase Semi-Converter Drive formula is the average voltage developed at the terminals of the armature of the DC motor drive. in the above formula, the delay angle of the field thyristor (α_f) is considered and is represented as V_{f(semi_3p)} = (3*V_m*(1+cos(α)))/(2*pi) or Semi Drive Field Voltage in Three Phase = (3*Peak Input Voltage*(1+cos(Delay Angle of Thyristor)))/(2*pi). Peak input voltage is the peak value of the sinusoidal input voltage V_msin(wt) to the converter drive & Delay Angle of Thyristor is the angle at which thyristors are triggered after zero crossing.

How to calculate Average Field Voltage of Three Phase Semi-Converter Drive?

The Average Field Voltage of Three Phase Semi-Converter Drive formula is the average voltage developed at the terminals of the armature of the DC motor drive. in the above formula, the delay angle of the field thyristor (α_f) is considered is calculated using Semi Drive Field Voltage in Three Phase = (3*Peak Input Voltage*(1+cos(Delay Angle of Thyristor)))/(2*pi). To calculate Average Field Voltage of Three Phase Semi-Converter Drive, you need Peak Input Voltage (V_m) & Delay Angle of Thyristor (α). With our tool, you need to enter the respective value for Peak Input Voltage & Delay Angle of Thyristor 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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