quasi-dynamic simulation
quasi-dynamic simulation
(OP)
Hi,
I wonder if someone could explain me what is meant by the quasi-dynamic and quasi steady state simulation? I was reading through some papers from the internet about these and still have not been able to understand how this methodology is formed. Can we consider it a statistical approach or AI approach. I know it has been used to simulate dynamic voltage response. I appreciate if someone could tell me or give me some basic information about this. Many thanks.
I wonder if someone could explain me what is meant by the quasi-dynamic and quasi steady state simulation? I was reading through some papers from the internet about these and still have not been able to understand how this methodology is formed. Can we consider it a statistical approach or AI approach. I know it has been used to simulate dynamic voltage response. I appreciate if someone could tell me or give me some basic information about this. Many thanks.






RE: quasi-dynamic simulation
One typical context of quasi-static is Maxwell's equations. The full equations have coupling between electric and magnetic fields in the 3rd and 4 equations below.
1 - Del dot D = rho
2 - Del dot B = 0
3 - Del cross E = -d/dt(B)
4 - Del cross H = J + d/dt(D)
If you should describe a time-varying continuous system and choose to assume induced voltage d/dt(B) is negligible, that is often called electro quasi-static analysis. The H is decoupled from the E (no wave behavior) and we can analyse the E fields on their own.
If you should describe a time-varying continuous system and choose to assume maxwell's displacement current d/dt(D) is negligible, that is often called electro quasi-static analysis. The B is decoupled from the E (no wave behavior) and we can analyse the H fields on their own.
Another interesting example – if you should choose to analyse the DOL startup transient of an induction motor using the steady state torque speed curve – that is quasi-static analysis. There are transients present which modify the transient torque curve so it is not soley a function of speed. The error can be surprisingly large for a DOL start of a low inertia load.
There are many other examples. Perhaps you have a context in mind?
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RE: quasi-dynamic simulation
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