The control of permanent magnet synchronous motor, we often need to use coordinate transformation, contact inductors: phase inductance, line inductance, direct axis inductance, quadrature axis inductance, mutual inductance and so on, especially the combination of inductance and coordinate transformation, so that many people confused.Next, the axial inductor manufacturer will answer this question for you.
What are self-induction and mutual induction？
Ampere's law tells us that the root cause of a magnetic field is current -- either in a conductor or in a ring in a permanent magnet.In other words, we have a coil, and when we energize it, we generate a magnetic field.
The coil itself is in the magnetic field it generates, which means that the coil also generates flux (flux).
The magnetic flux is caused by an electric current, so we can express it by means of electric current -- the medium is inductance!So the definition of inductance is:
Strictly called self inductance, that is, the ability of the coil to generate flux to itself.Since there is self-induction, there is mutual inductance, the ability to generate magnetic flux between two coils.
Why is inductance important?
Because of the ability of electric current to generate a magnetic field in a particular structure, and because electric current is a quantity we are very familiar with, we can easily study the properties of magnetic fields, especially in motors, if the inductance is determined.
The above is organized and published by the mutual inductor supplier.If you do not understand, welcome to consult us!Alternatively, search "inductorchina.com"
Post time: Apr-08-2021