Is QSPICE useful for power circuit analysis

In what sense is qspice more suitable for power circuit analysis? Are we talking power flow analysis and optimization using transformers, generators, transmission lines, circuit breakeres etc…?

You’re going to want to try it out.

Not sure what you’re looking for, but to try to answer your question, these are some of the aspects of QSPICE that come to mind: It has new wide bad gap transistors a native circuit elements, it can compute actual dissipation in these transistors ignoring the displacement current in their capacitances. Saturating inductors, capacitors, and transformers are native circuit elements. You can present the digital logic of modern converters to your analog simulation.


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It sounds like you’re interested in using QSPICE for AC power transmission, like across a city. Is that correct?

In principle spice simulators (also qspice) are usable also for analysing high energy networks especially for the transient simulation domain. For the steady state (loadflow) analysis the approch is a little tricky. Since there is no complex valued nonlinear ac analysis in spice simulators all loadflow elements are decomposed in real and imaginary units and then simulated by (nonlinear) .op .tran or .dc analysis. Years ago i started to develop such high energy elements in ltspice. Best you see my website ( search google for “ltspice loadflow” ) and decide if there is something of interest for you.

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