[esp-r] Re: PV modeling

[Nicolas Kelly]

Liam,
 
To get round this problem you will need to have a fixed voltage node somewhere in your electrical network - without this the network cannot be solved. The simplest network I use for this type of problem is two node: 
 
1. fixed voltage node (i.e. the grid)
 
2. pv node
 
Connect both nodes together with a very low resitance cable and couple the PV panel or panels to the pv node  - this should work OK. 
 
Regards,
 
Nick Kelly on behalf of ESRU

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From: esp-r-bounces at lists.strath.ac.uk on behalf of Liam O'Brien
Sent: Wed 27/08/2008 04:48
To: esp-r at lists.strath.ac.uk
Subject: [esp-r] PV modeling


Hello all,

I'm interested in modeling a PV panel only without the effects of network losses, an inverter, etc.  Ideally I would have liked to merely have a single node "network" that the PV panel is connected to.  However, ESP-r is not allowing me to do so, stating that "Error: Node   1 PV_node     is not connected to the network."  

Is there any way around this?  While I could model a more detailed network, the configurations I have tried consistently give me errors.  (Even if the "check network for errors" passed, bps quits without warning when I  try to initiate a simulation.  

Are there any good sources of information for modeling electrical networks?

Any advice would be greatly appreciated.  Thanks.

Liam


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