Low waveform distortion with little passive filtering.This rapid switching speed, in combination with very powerful and inexpensive digital control, provides several advantages for distributed generation interface applications: Further, the device characteristics enable switch transitions to occur very rapidly relative to a single cycle of 60 Hz voltage – nominal switching frequencies of a couple to several kHz are typical. switches) that are capable of both controlled turn-on as well as turn-off. The generator frequency and grid frequency are decoupled by using a voltage-source converter.Ī modern static power converter utilizes power semiconductor devices (i.e. Full power conversion means that a back-to-back voltage-source converter is connected to the generator as illustrated in Figure on the right. Because all of the power from the turbine is processed by the static power converter, the specific characteristics and dynamics of the electrical generator are effectively isolated from the power grid. In this configuration, a wide range of electrical generator topologies could be employed – Permanent Magnet Synchronous Generator, Wound Rotor Synchronous Generator, or Wound Rotor Induction Generator. For Type 4 Wind Turbine Generators (WTGs), the generator is connected to a full power converter.
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