Mean value (variable frequency)#

The Mean value (variable frequency) block calculates the arithmetic average value of the input signal during one period of the specified fundamental frequency according to the formula (1) :

(1)#\[Mean(f(t))=\frac{1}{T}\cdot \int_{t-T}^{t}f(t)\cdot dt\]

where:

f(t) - input signal;

T = 1/f - period of the fundamental harmonic of signal with frequency f.

The frequency f is set as an input signal of the block and may be a variable quantity.

During the first period of the fundamental frequency of the signal, the output value of the block will be equal to the specified initial parameter, because in order to obtain the calculated value, the first period of the fundamental frequency must be completed.

1. Properties#

Property	Default Value	Description	Units of measurement
Initial value	0.0	-	-
Starting frequency	50.0	-	Hz
Minimal frequency	40.0	-	Hz
Sampling type: Fundamental project frequency decimation; Sample time; Sampling frequency	Fundamental project frequency decimation	-	-
Decimation factor of project fundamental discretization frequency, available when selecting `Sampling type` - `Fundamental project frequency decimation`	1	-	-
Sample time, available when selecting `Sampling type` - `Sample time`	0.05	-	s
Sampling frequency, available when selecting `Sampling type` - `Sampling frequency`	20.0	-	Hz

2. Inputs and outputs#

Parameters	Input/Output	Description	Units of measurement	Port type
Input signal	Input	-	-	Automation
Signal frequency	Input	-	Hz	Automation
Output signal	Output	-	-	Automation

In order to see the connection capabilities of the block, you need to go to page Description of block ports