Changing the circuit without energy storage element

How to change the voltage or frequency of an alternating current source?

In order to change the voltage or frequency of an alternating current source, AC-AC converters are needed (e.g., light dimmer and mains frequency changer) , , , , . 1.1.1. Nonisolated/Isolated Power electronics converters are generally consist of only semiconductor switches and energy storage elements.

What is the difference between a power electronics converter and a nonisolated converter?

Power electronics converters are generally consist of only semiconductor switches and energy storage elements. Nonisolated converters are often preferred in applications that electrical isolation is not a necessity, because they are less bulky and costly, and more efficient and reliable.

Why do voltage-fed converters have no input inductor?

By contrast, the lack of an input inductor in voltage-fed converters results in considerable ripple current at the input; however, as these converters have no right half plane (RHP) zero in their control to output transfer function, they have faster dynamic response than current-fed converters with input inductors and RHP zero . 1.1.3.

What are the characteristics of power electronics converters?

In order to optimally support different features of diverse applications, power electronics converters should benefit from different characteristics such as nonisolated/isolated, voltage-fed/current-fed and hard-switched/soft-switched. There are various types of power conversion (AC-DC, DC-AC, DC-DC and AC-AC) applicable to different applications.

Do two inductors contribute only one effective energy storing element?

So I would say that the two inductors together contribute only one effective energy storing element. Also, how sure are you about the correctness of the mechanical to electrical conversion?

What happens when a storage element is charged for a long time?

After charging “for a long time,” the storage element becomes fully charged (typically the initial condition). At t = 0, initial inductor current = _______? At t = 0, R and L voltages are _______? How do we find vR(t) and vL(t)? At t=0s, the switch is moved from position a to b.