Re: Convergence Issue for Distribution Network Power Flow Analysis

2015-02-24 Thread Carlos Gonzalez Almeida
rem On Tue, Feb 24, 2015 at 2:03 AM, #ZHANG TIAN# wrote: > Hello! > > > > Yes, by changing the LV impedances I can get the correct results. This is > worth noting that the data in the “Model Explorer” in PowerWorld Simulator > is in per unit based on the whole system, rather than its real value

Re: runcpf problem

2015-02-24 Thread Amal Elramly
Thank you, it now works. I have some questions: * How to run cpf for other load models (composite, constant current and constant impedance)? * How to calculate and plot stability index? Thank you in advance  Amal On Monday, February 23, 2015 3:56 PM, "Abhyankar, Shrirang G." wrote:

Re: Convergence Issue for Distribution Network Power Flow Analysis

2015-02-24 Thread mohammad reza Andervazh
Please make sure that the loads i.e. PD and QD in mpc.bus are in p.u. Run the program again. It'll works. good luck. Andervazh On Tue, Feb 24, 2015 at 1:09 PM, Carlos Gonzalez Almeida < cgonzalezalme...@gmail.com> wrote: > rem > > > On Tue, Feb 24, 2015 at 2:03 AM, #ZHANG TIAN# > wrote: > >>

Re: Convergence Issue for Distribution Network Power Flow Analysis

2015-02-24 Thread Ray Zimmerman
No. The loads, PD and QD, are NOT in p.u., they are in MW and MVAr. Check the documentation for caseformat or Table B-1 in the User’s Manual . Ray > On Feb 24, 2015, at 7:32 AM, mohammad reza Andervazh > wrote: > > Please make sure that t

Errors On Radial Distribution Network OPF

2015-02-24 Thread Hui Guo
To Whom It May Concern, I built the network of RBTS and it is shown below. Now, the OPF of the network is running correctly. However, when I disconnected the line 70 which links Supply Point 1 (SP1) and Supply Point 2 (SP2), the SP2 and SP3 cannot get the power supply. The SP2 and SP3 suppose

Re: Effect of loads in IEEE 39 bus system

2015-02-24 Thread arun s nair
Hi Shri, Sorry for not stating my problem clearly. I need to implement ZIP load model in matpower to evaluate it's effect, instead of constant power load in runcpf. P = P0[ a1 (v/v0)2 + a2(v/v0) + a3 ] Vo is the rated voltage of the device, and Po and Qo is the power consumed at rated voltage.