Inverter scalable in power and frequency

摘要

An inverter is proposed for providing an inverter output signal scalable in frequency. The inverter has a controller for controlling frequency of the inverter output signal according to a predefinable value. In order to generate a signal having a frequency value prescribed for the inverter output signal, the controller initiates a time delay of signals and superimposes the signals onto the signal having the frequency value prescribed for the inverter output signal. A low-complexity inverter concept for high voltages or high power is thus provided.

主权项

1. An inverter for providing an inverter output signal that is scalable in power and frequency, comprising:
a plurality of inverter units, each inverter unit comprising an isolating transformer, a current/voltage transformer, and switching elements, the switching elements being controlled by a respective controller for generating an inverter unit output signal, a high-frequency output transformer receiving at least one respective inverter unit output signal, a central controller for controlling the frequency of an overall inverter output signal according to a definable value, wherein the central controller is adapted to cause the inverter unit output signals of the plurality of inverter units to have a time delay and to superimpose the inverter unit output signals being time delayed on the overall inverter output signal having a frequency specified for the overall inverter output signal.