modelDiscreteBaseBlock

Partial discrete time block interfaces

Extends from BaseBlock (Partial continuous time block interfaces).

Information

Description

Partial interface for a discretised continuous time block.
Each block has a single input anda single output (SISO).

Discretisation

For each block is defined a sampling time Ts and a coefficient alpha.
The discretisation of the continuos time transfer function has been performed with the bilinear transformation formula

                 z - 1 
  s = ------------------------------
        z*alpha*Ts - (alpha - 1)*Ts

that is equivalent to

Forward Euler (FE) if
```
alpha = 0
```
Backward Euler (BE) if
```
alpha = 1
```
Tustin (TU) if
```
alpha = 0.5
```

Parameters

Type	Name	Default	Description
Discretisation
Real	Ts	0.01	Sampling time [s]
IndustrialControlSystems.LinearSystems.Discrete.Types.discrMethod	method	IndustrialControlSystems.LinearSystems.Discrete.Types.discrMethod.BE	Discretisation method

Connectors

Type	Name	Default	Description
Modelica.Blocks.Interfaces.RealInput	u (from BaseBlock)		input
Modelica.Blocks.Interfaces.RealOutput	y (from BaseBlock)		output

Revisions

Industrial Control Systems (v 1.0.0) : April-May 2012