From: simione civoniceva on 24 Nov 2009 01:17 "Ikechi " <merlinjumansion(a)yahoo.com> wrote in message <ge21st$b12$1(a)fred.mathworks.com>... > How to calculate the initial conditions for an induction generator model i.e slip, electrical angle(degrees),stator current magnitude and phase angle (degrees) Simione <s_civoniceva(a)yahoo.com> Hi Ikechi i have the same problem i will be very greatfull if you share some ideas with me thank you in advance
From: Frank W. on 25 Nov 2009 04:01 Hello, specifying the initial conditions depends on what you want to simulate. One solution that always works is running the simulation for a certain time until the system has reached steady state. Simulink allows saving all states and to use them as the starting point for another simulation. To do this select 'Simulation>Configuration Parameters...' Then click on the node 'Data Import/Export'. In the Field 'Save to Workspace' you check 'Final States' and maybe enter a different name but 'xFinal'. You then start the simulation wtih a time until it reaches steady state. You will then find the states in the workspace. In order to start a new simualtion with these steady states you again open the 'Configuration Parameters' dialog. Again click on the node 'Data Import/Export'. Uncheck the field 'Final States' and instead check 'Initial States' in the 'Load from Workspace' area of the dialog. Enter the name under which you have saved the final states in the previous step (the variable name which is listed in the workspace). Then you can start the simulation again. Another possibility is using the load flow tool from SimPowerSystems. A good general explanation can be found in the SimPowerSystem Help under 'Specifying initla condtions' under 'Getting started'. A good practical example is 'power_machines.mdl' in the demos section of SimPowerSystems. Regards Frank
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