Load flow

[swarathe]

Hi, All

Can anyone tell me which leading technique or method, PSCAD uses during load flow simulation

with Regard

swarathe

[url=mailto:swarathe@yahoo.co.in]swarathe@yahoo.co.in[/url]

[green apple]

hi..did u get the answer?

[Anonymous]

no.
I need ,simulation ieee 13 node feeder with PSCAD software .please,help me.
tanks a lot

[swarathe]

hi

not replied by any one

i attaching some load flow example

regard

[swarathe]

hi

not replied by any one

here i attaching pdf file of load flow

regard

[green apple]

hi..this is my 4test bus system model.. i did the load flow analysis.. now i have to do capacitor switching to do thetransient analysis..can anybody help me how to do it? im very2 new to pscad..pls help me

[ram prasad]

[user=38665]green apple[/user] wrote:

hi..this is my 4test bus system model.. i did the load flow analysis.. now i have to do capacitor switching to do thetransient analysis..can anybody help me how to do it? im very2 new to pscad..pls help me

As you aware, PSCAD is an electromagnetic transient simulation program that represents the electric network as differential equations that are solved for a complete (high bandwidth) solution. The solution is based on a fixed time step using trapezoidal integration. Load flow and stability programs reduce the differential equations to phasor representation (algebraic) based on a steady state frequency, typically the fundamental frequency.

Load Flow is a steady state solution. PSCAD will not do a typical load flow, as would be done in a dedicated load flow program. Once the bus voltages and power flows are known and entered into PSCAD, the PSCAD solution will also have the same corresponding load flow.



It is not normally recommended that a load flow be performed in PSCAD. As you are running relatively small system you may be able to run the system until a steady state is achieved (which would be equivalent to a load flow solution). You can then create a snapshot from the steady state and run the case from the snapshot. Another option would be to modify the initial parameters of the models to equal the steady state values to start the simulation from a state that is very close to steady state.

[green apple]

hi..thankx ram prasad.. im appriciate 4 ur reply..

now i face to other problem on how to model a capacitor bank.. i juz at capacitive load at the bus.. is it correct? and i dont know what value should i choose..

[ram prasad]

[user=38665]green apple[/user] wrote:

hi..thankx ram prasad.. im appriciate 4 ur reply..

now i face to other problem on how to model a capacitor bank.. i juz at capacitive load at the bus.. is it correct? and i dont know what value should i choose..

you are most welcome, thank you, my suggestion is to post your query to [url=mailto:support@pscad.com]support@pscad.com[/url]. you can find a better solution.

your realname is green apple? are you working for?

do you have any idea about travelling waves phenomena. if you have any case please kindly send it to me ok bye have a nice day.

[green apple]

im realy2 new to pscad.. b4 this i used matlab in my project.. so i realy dont know how..

my name is fyda farween.... im still a student.. doing my degree project.. the due date 4 my project is on 28/09... but i dont know how im going to finish this project..

hey, ru from india? happy dewali..