hello everyone,

I would like to know how to model the High Impedance Fault(HIF) model using Matlab simulink.

Someone please guide me or advice me. Matlab is not allowing me to model that HIF model. I have no idea where is my mistake. I might be using the wrong component.

Here is the HIF model i would like to model with Matlab. The one in part (b)
http://i49.tinypic.com/2crlnhw.jpg

any pro in Power BlockSet? does anyone know how to create this HIF model with matlab?

your help is highly appreciated

"Nicholas A" <lingmung86@yahoo.com> wrote in message 
news:hfj0r3$hn$1@fred.mathworks.com...
> any pro in Power BlockSet? does anyone know how to create this HIF model 
> with matlab?
>
> your help is highly appreciated
>

It all depends on what the nonlinear resistance is. You might want to have a 
look at the following:
http://www.mathworks.com/support/solutions/en/data/1-5RIPXJ/?solution=1-5RIPXJ

Beyond that, there's nothing that's not included in SimPowerSystem.

HTH,

Arnaud 

hi.. 
Is there any other way to model similar HIF model in Matlab? i created the exact diagram but matlab do not recognize it. Can anyone show me any example for it?
thanks



"Arnaud Miege" <arnaud.miege@nospam.mathworks.co.uk> wrote in message <hfj1rs$7a1$1@fred.mathworks.com>...
> 
> "Nicholas A" <lingmung86@yahoo.com> wrote in message 
> news:hfj0r3$hn$1@fred.mathworks.com...
> > any pro in Power BlockSet? does anyone know how to create this HIF model 
> > with matlab?
> >
> > your help is highly appreciated
> >
> 
> It all depends on what the nonlinear resistance is. You might want to have a 
> look at the following:
> http://www.mathworks.com/support/solutions/en/data/1-5RIPXJ/?solution=1-5RIPXJ
> 
> Beyond that, there's nothing that's not included in SimPowerSystem.
> 
> HTH,
> 
> Arnaud 
> 

> hi..
>> Is there any other way to model similar HIF model in Matlab? i created the exact >> diagram but matlab do not recognize it. Can anyone show me any example for it?
>> thanks

Hello,
but so far you haven't been telling anything about what elements in what toolbox you have been using. Another question is: if you only want to model part b) from the jpeg-picture what other components do you use?
How exactly does Matlab express its lack in recognition, i..e. what error messages do you get?
But generally this is true: >Beyond that, there's nothing that's not included in SimPowerSystem<. And almost nothing left that can't be modeled.
Regards
Frank 

Hi,

I am trying to create a fault in a 25kv distribution system. I am putting the model in Part B to the distribution system just like what is shown in Part A. 

The HIF model in Part B consists of a nonlinear resistor, two diodes, and two dc sources that change amplitudes randomly every half cycle. Thus, some dynamics and randomness are represented. 

The problem I am facing now is clearly shown here.
http://i45.tinypic.com/28vubf4.jpg

Hope you can give some advise and guide me out.

Thank you

"Frank W." <yohansan@web.de> wrote in message <hfl43h$d18$1@fred.mathworks.com>...
> > hi..
> >> Is there any other way to model similar HIF model in Matlab? i created the exact >> diagram but matlab do not recognize it. Can anyone show me any example for it?
> >> thanks
> 
> Hello,
> but so far you haven't been telling anything about what elements in what toolbox you have been using. Another question is: if you only want to model part b) from the jpeg-picture what other components do you use?
> How exactly does Matlab express its lack in recognition, i..e. what error messages do you get?
> But generally this is true: >Beyond that, there's nothing that's not included in SimPowerSystem<. And almost nothing left that can't be modeled.
> Regards
> Frank 

Hi,
according to the small red crosses in >http://i45.tinypic.com/28vubf4.jpg< I guess that you want to connect elements from Simscape (all the elements that represent the fault) to elements from SimPowerSystem (all other elements). This is not possible that easily. I recommend only taking elements from SimPowerSystem.
It might be possible to connect the elements from both toolboxes by using the blocks 'PS-Simulink Converter' or 'Simulink-PS Converter' from the 'Utilities' section of Simscape. Because I do not know Simscape this is only a guess after having a look at the online documentation.
Regards
Frank

"Frank W." <yohansan@web.de> wrote in message 
news:hfm63i$ioc$1@fred.mathworks.com...
> Hi,
> according to the small red crosses in >http://i45.tinypic.com/28vubf4.jpg< 
> I guess that you want to connect elements from Simscape (all the elements 
> that represent the fault) to elements from SimPowerSystem (all other 
> elements). This is not possible that easily. I recommend only taking 
> elements from SimPowerSystem.
> It might be possible to connect the elements from both toolboxes by using 
> the blocks 'PS-Simulink Converter' or 'Simulink-PS Converter' from the 
> 'Utilities' section of Simscape. Because I do not know Simscape this is 
> only a guess after having a look at the online documentation.
> Regards
> Frank
>

Yes, you can't connect Simscape elements to SimPowerSystems elements. 
However, in your case, all the components you have modelled using Simscape 
are readily available in SimPowerSystems, so I would just use the 
SimPowerSystems version.

HTH,

Arnaud 

Thank you Arnaud and Frank

I now understand clearly where is my mistake already. I shouldn't mix the Simscape component with the SimPowerSystem.

Both of your help is highly appreciated. Thanks a million.

Regards,
Nicholas

"Arnaud Miege" <arnaud.miege@nospam.mathworks.co.uk> wrote in message <hfminu$hk3$1@fred.mathworks.com>...
> 
> "Frank W." <yohansan@web.de> wrote in message 
> news:hfm63i$ioc$1@fred.mathworks.com...
> > Hi,
> > according to the small red crosses in >http://i45.tinypic.com/28vubf4.jpg< 
> > I guess that you want to connect elements from Simscape (all the elements 
> > that represent the fault) to elements from SimPowerSystem (all other 
> > elements). This is not possible that easily. I recommend only taking 
> > elements from SimPowerSystem.
> > It might be possible to connect the elements from both toolboxes by using 
> > the blocks 'PS-Simulink Converter' or 'Simulink-PS Converter' from the 
> > 'Utilities' section of Simscape. Because I do not know Simscape this is 
> > only a guess after having a look at the online documentation.
> > Regards
> > Frank
> >
> 
> Yes, you can't connect Simscape elements to SimPowerSystems elements. 
> However, in your case, all the components you have modelled using Simscape 
> are readily available in SimPowerSystems, so I would just use the 
> SimPowerSystems version.
> 
> HTH,
> 
> Arnaud 
> 

"Nicholas A" <lingmung86@yahoo.com> wrote in message <hfhsm8$44d$1@fred.mathworks.com>...
> hello everyone,
> 
> I would like to know how to model the High Impedance Fault(HIF) model using Matlab simulink.
> 
> Someone please guide me or advice me. Matlab is not allowing me to model that HIF model. I have no idea where is my mistake. I might be using the wrong component.
> 
> Here is the HIF model i would like to model with Matlab. The one in part (b)
> http://i49.tinypic.com/2crlnhw.jpg

hi dear,
i am also trying to model exacllty  the same model of high impedance model that u have, so, plz if u have created it, send me m.file of HIFs

kind regards

"madan mohan" <madanihcas.m@gmail.com> wrote in message <hfhsm8$44d$1@fred.mathworks.com>...
> hello everyone,
> 
> I would like to know how to model the High Impedance Fault(HIF) model using Matlab simulink.
> 
> Someone please guide me or advice me. Matlab is not allowing me to model that HIF model. I have no idea where is my mistake. I might be using the wrong component.
> 
> Here is the HIF model i would like to model with Matlab. The one in part (b)
> http://i49.tinypic.com/2crlnhw.jpg