MATPOWER does not model DC networks.

-- 
Ray Zimmerman
Senior Research Associate
419A Warren Hall, Cornell University, Ithaca, NY 14853
phone: (607) 255-9645




On Jan 17, 2012, at 6:31 AM, Mateusz Cygan wrote:

> Hey,
> 
> with AC part i dont have any problems now. It`s working great (thx  Shiyang 
> Li). Now i would like to simulate DC part:
> 
> <image.png>
> i neglect X and B (lines parameters) -> fase shift doesnt exists in DC and 
> set only parameter R. In this case my program can`t calculate PF. Should i 
> change something else ?
> 
> W dniu 16 stycznia 2012 18:11 użytkownik Mateusz Cygan <[email protected]> 
> napisał:
> Oh,
> here are this two pictures, which i wanted attach:
> http://img163.imageshack.us/img163/9358/circuitw.jpg (AC system)
> http://img440.imageshack.us/img440/9733/parameters.jpg
> 
> and second question:
> is it possible, that i will make in one circuit AC and DC part (between them 
> converter) ???
> 
> W dniu 16 stycznia 2012 18:02 użytkownik 新浪VIP <[email protected]> 
> napisał:
> 
>> Mateusz Cygan,
> 
> Effective generator is necessary for PV and REF buses. 
> 
> Shiyang Li
> 
> 
> 发自我的 iPhone
> 
> 在 2012-1-16,23:38,Mateusz Cygan <[email protected]> 写道:
> 
>> Dear Mr. Zimmerman,
>> 
>> my AC system is looking like on the pic.
>> <circuit.jpg>
>> 
>> I have 3 wind generators (2,3,4 nodes), Load in node 1 and Slack bus in node 
>> 5. Which bus type i should use to made it like on previous pictures. I am 
>> trying to do this like below, but have some errors ->
>> ??? Attempted to access pv(1); index out of bounds because numel(pv)=0.
>> 
>> Error in ==> bustypes at 61
>>     ref = pv(1);                %% use the first PV bus
>> 
>> Error in ==> runpf at 135
>> [ref, pv, pq] = bustypes(bus, gen);
>> 
>> <parameters.jpg>
>> 
>> Could you explain me this ?
>> -- 
>> Pozdrawiam,
>> Best Regards,
>> Mit freundlichen Grüßen,
>> 
>> Mateusz Cygan
>> 
>> 
>> 
> 
> 
> 
> 
> -- 
> Pozdrawiam,
> Best Regards,
> Mit freundlichen Grüßen,
> 
> Mateusz Cygan
> 
> 
> 
> 
> 
> 
> -- 
> Pozdrawiam,
> Best Regards,
> Mit freundlichen Grüßen,
> 
> Mateusz Cygan
> 
> 
> 

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