I am trying to understand how to do a steady-state voltage stability / collapse study using a simulation (in digsilent powerfactory, psse, pslf, psat, etc.). I understand that loads can be increased (or gens/lines out) until the system does not converge, indicating instability. Is there a basic...
But a capacitor will create a leading current, therefore negative vars (a negative power triangle). So a capacitor acts as a source of negative vars? Or positive vars?
Much Thanks!
Inductance is lagging, corresponds to positive Q or vars or reactive power.
Capacitance is leading, corresponds to negative Q.
Inductive machines or components absorb (negative) vars, yes?
Capacitance injects, generates, or produces (negative) vars, yes?
Why is the convention that capacitance...