How is the output voltage of an inductor-type inverter controlled?

The output voltage of an inductor-type inverter is primarily controlled by the DC stator field current. In an inverter that employs inductors as a key component, the field current plays a critical role in determining how much energy is transferred from the DC side to the AC output. By adjusting the current flowing through the inductor, the inverter can regulate its output voltage more effectively.

This mechanism is rooted in the properties of inductors, which resist changes in current. By varying the stator field current, the magnetic field strength around the inductor is manipulated, subsequently influencing the induced voltage across the inverter’s output terminals. This is particularly important in applications where precise control of the output voltage is necessary, providing flexibility in matching the supply with the load demands.

In the context of the other options, while frequency of the output signal and the DC input voltage can influence the operation of inverters in general, they do not serve as direct controls for output voltage in an inductor-type configuration. The overall load demand plays a role in the inverter’s performance but is not an explicit control mechanism for the output voltage itself.