.TransiEnt.Components.Turbogroups.OperatingStates.ThreeStateDynamic

Information

1. Purpose of model

Three state dynamic turbine model as state transition graph

2. Level of detail, physical effects considered, and physical insight

L1: Models are based on characteristic lines and / or transfer functions

A hysteresis has been added for the state change from halt to startup. Sometimes chattering can occur at this switch which can be avoided using the hysteresis.

Parameter 'MinimumDownTime' defines minimum time that power plant has to be shut down before beeing able to start up again.

3. Limits of validity

(no remarks)

4. Interfaces

P_set_star: input for electric power in W

P_set_star_lim: output for electric power in W

5. Nomenclature

(no remarks)

6. Governing Equations

(no remarks)

7. Remarks for Usage

slewRateLimiter: set P_grad_operating =-1, if slewRateLimiter is not needed.

8. Validation

Tested in check model "TestThreeStateDynamic" and "TestThreeStateDynamic_Initatmin"

9. References

(no remarks)

10. Version History

Model created by Pascal Dubucq (dubucq@tuhh.de) on 01.10.2014

Quality check (Code conventions) by Rebekka Denninger on 01.10.2016

Hysteresis for halt-startup change added by Carsten Bode (c.bode@tuhh.de) in Nov 2018

Model modified by Oliver Schülting (oliver.schuelting@tuhh.de) in Nov 2018: added Minimum Down Time

Model modified by Oliver Schülting (oliver.schuelting@tuhh.de) on April 2019: added option to deactivate slewRateLimiter, added minimum operation time

Model modified by Robert Flesch (flesch@xrg-simulation.de) in Feb 2021: set output to zero if shutdown is active - check if shutdown is complete by using the power input