I want to know the answer to the following question:
What is the main advantage of an induction motor?
All the background I'm provided with is that "More recently, the development of very high power semiconductors has caused the classic "universal" AC/DC motor to be largely replaced with the three-phase induction motor fed by a variable frequency drive, a special inverter that varies both frequency and voltage to control motor speed.". Is that enough to answer the question?