modelRelayHysteresis

Relay with hysteresis

Extends from IndustrialControlSystems.Controllers.Interfaces.BaseBlock (partial interface for a continuous time control block).

Information

On-Off relay with hysteresis controller.

            1 if u(t) >= ThH and y(t) == 0
   y(t)  = 
            0 if u(t) < ThL  and y(t) == 1

If the sampling time parameter Ts is less or equal to zero, ( Ts <= 0 ) The continuous time vesion is used, otherwise the discrete time one.

Type	Name	Default	Description
Real	Ymax	1	maximum output value
Real	Ymin	0	minimum output value
Real	ThL	0	input treshold (low) value
Real	ThH	0	input treshold (high) value
Boolean	initState	false	initial state
Discretisation
Real	Ts (from BaseBlock)	0	Sampling time (if <= 0 continuous time)

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