An Improved Control Scheme for a Standalone DFIG with Unbalanced and Nonlinear Loads using Proportional-Resonant Controllers

Abstract

This paper proposes an improved control scheme to regulate the stator voltage in a standalone doubly fed induction generator (DFIG) under nonlinear and unbalanced loads. The proposed control scheme uses proportional resonant controllers in the 2-phase stationary frame of reference with a zero sequence controller to compensate the voltage distortion under unbalanced loads. It is demonstrated that the proposed control scheme achieves better performance over existing control methods. The total harmonic distortion (THD) of the stator voltage is significantly improved over conventional control methods. Simulation results presented show the effectiveness of the scheme.

Meeting Name

48th North American Power Symposium (2016: Sep. 18-20, Denver, CO)

Department(s)

Electrical and Computer Engineering

Research Center/Lab(s)

Intelligent Systems Center

Keywords and Phrases

Asynchronous Generators; Controllers; Electric Fault Currents; Resonance; Stators; Doubly Fed Induction Generator (DFIG); Doubly Fed Induction Generators; Improved Control Scheme; Inverter Control; Proportional Resonant Controllers; Resonant Controller; Total Harmonic Distortion (THD); Zero Sequences; Electric Machine Systems; Four Legged Inverter Control; Resonant Controllers; Zero Sequence Control; Doubly fed Induction Generator

International Standard Book Number (ISBN)

978-1509032709; 978-1509032716

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2016 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Publication Date

01 Sep 2016

Link to Full Text

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