I am modelling a simple power system with two generators.
The power system is initially assumed to be operating with a lagging pf (the generators are providing reactive power). However, some capacitors were added to the system for power factor correction, however, these capacitors turned out to be too large and over corrected the pf. Now the system operates in leading pf mode, the generators are now receiving reactive power.
I wanted to ask which situation is optimum for a system? Lagging, leading or unity pf? And is leading/lagging pf inherently bad? Therefore, is it worth reducing capacitor size such that the pf is lagging as most loads are inductive therefore, need reactive power?