Controller of doubly-fed induction generator

Details Controller of doubly-fed induction generator Controller of doubly-fed induction generator

2007-11-30

2009-12-29

Ponomarenko, Nicholas (Department: 2839)

Electricity: single generator systems

Automatic control of generator or driving means

Power factor or phase relationships

C290S044000, C363S071000

Reexamination Certificate

active

07638983

ABSTRACT:
Disclosed is a controller of a grid coupled type doubly-fed induction generator having a multi-level converter topology, which can control the doubly-fed induction generator having a high voltage specification and can perform a fault ride-through function, an anti-islanding function and a grid voltage synchronization function required for a dispersed power generation facility. The controller makes a H-bridge multi-level converter generate a three-phase voltage waveform resulted from the structure that single-phase converters each being composed of a 2-leg IGBT are stacked in a serial manner, and controls a rotor current so as to make the rotor coil of the doubly-fed induction generator in charge of a slip power only. The boost converter is composed of a 3-leg IGBT and a boost inductor generating a direct current voltage of its source required for the H-bridge multi-level converter.

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