Yes, you are the best Vtile.
Thx. I also learn something every time I try to explain something like this. It took me awfully lot of time to sort by myself some of these "This device generates our new form of power" style of concepts that is used solely by most lecturers while they force spoon-feed the huge amounts of knowledge in a short time to the random mass of students, whose face are like
. What I have noticed also is that there is awfully lot of similar concepts that are explained with different terms depending which sub-discipline the lecturer do have his or her background. As an UAS automation background myself all our lecturers were from different backgrounds (electronics, RF, power, control, computer science, chemistry, instrumentation, technical physics etc.) everyone did eventually describe the same phenomenons with different terms and concepts, what a mess.
So let me rethink: We need capacitors for the standalone induction motor because the motor is a coil of wire, and for the compensation we add capacitors. If the motor was a capacitor (which of course is not) then we should add inductors.
Err. Yes that is what my current understanding says. It have to do with the how the magnetic field collapses (and releases the stored energy) when the power outside of the motor* is going down to zero. If there is no storage device** attached to the network the motor do not get the needed power to reform the magnetic field as it doesn't produce any power itself when the magnetic field is zero. So the capacitor is the device with needed properties to store the energy and again release it to the motor when the magnetic field starts to reform again. Oscillation it is.
* Motor used as Generator in above paragraph.
** Capacitor and Inductor are in the end storage devices, one likes more current and one likes potential. Hence the whole phase shifting and compensation thing.
This aspect of motors starts to be on point where I have been satisfied (read edge of understanding) for now and just plugged the numbers to equation and hit solve.
I suggest you take a look also in parallel LC oscillators and draw your own conclusions.
And last thing: So if the power is negative, then it's flowing in the opposite direction. It resists the flow of active power.
I don't know if you can say that it does resist the active power (kind of yes), but it is released back to network when so called active power goes to zero.
Does this make sense?
Yes.
...And yes in the end the energy we call reactive power do travel in the transmission lines in form of wave (at 50Hz aprox. 6000km long wave) until it reach something that is ready to consume or store it.