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Investigation and Correction on Transformation Angle deviation of Brushless Doubly-fed Stand-alone Generation System | IEEE Conference Publication | IEEE Xplore

Investigation and Correction on Transformation Angle deviation of Brushless Doubly-fed Stand-alone Generation System


Abstract:

Vector control researches of brushless doubly-fed induction generator (BDFIG) highly depend on the unified-reference-frame dq model, which requires that the coordinate tr...Show More

Abstract:

Vector control researches of brushless doubly-fed induction generator (BDFIG) highly depend on the unified-reference-frame dq model, which requires that the coordinate transformation angles and the initial rotor position angle meet the specific relation, otherwise the practical closed-loop control performances will be influenced. To meet the requirement directly, this paper first illustrated the influence of transformation angle deviation on the critical inner-loop control, and then proposed the model-reference-adaptive (MRA) transformation angle correction method for BDFIG stand-alone generation system. Based on the commonly used dual-loop controller under control-winding current orientation, the steady-state adjustable model of control-winding voltage was constructed, and then the transformation angle correction was realized based on adaptive adjustment. The simulation results verified the influence analysis, and the experimental results verified the effectiveness of the proposed angle correction method.
Date of Conference: 27-30 July 2023
Date Added to IEEE Xplore: 29 December 2023
ISBN Information:
Conference Location: Tianjin, China

Funding Agency:


I. Introduction

In stand-alone generation applications, the doubly fed induction generator (DFIG) is commonly used because it can achieve variable speed constant frequency operation easily and only requires partial power conversion. However, the easily damaged brushes and slip rings reduce the overall reliability. Thus brushless doubly-fed induction generator (BDFIG) is developed with a special structure design, retaining DFIG’s advantages and canceling brushes and slip rings. With higher reliability and lower maintenance cost, BDFIG has good potential under severe stand-alone operational environments [1].

References

References is not available for this document.