Effect of Different Turbine-generator Shaft Models on the Subsynchronous Resonance Phenomenon in the Double Cage Induction Generator Based Wind Farm

Zeinali Davarani, Roohalamin; Salehi, Mohammad Kazem

Effect of Different Turbine-generator Shaft Models on the Subsynchronous Resonance Phenomenon in the Double Cage Induction Generator Based Wind Farm

Authors

Roohalamin Zeinali Davarani ¹

Mohammad Kazem Salehi ²

¹ Electrical and Computer Engineering, Graduate University of Advanced Technology

² Faculty of Electrical and Computer Engineering, Graduate University of Advanced Technology

Abstract

This paper focuses on the turbine-generator shaft models of double-cage Induction Generator (IG) based wind farm and its influence on the sub-synchronous resonance phenomenon. For this purpose, six different shaft models as 6-mass, 4-mass, 3-mass I, 3-mass II, 2-mass and 1-mass models are considered for double-cage IG wind-turbine. By using the linear modal analysis method, the effects of the different multi mass model of double-cage IG wind-turbine on the SSR phenomenon are studied. The results obtained by eigenvalue analysis show that the model of double-cage IG wind-turbine has an important effect on the detecting of Subsynchronous Resonance (SSR) phenomenon. The analytical results are validated by detailed electromagnetic transient simulation using PSCAD/EMTDC software.

Keywords

Double Cage Induction Generator

turbine

Generator Shaft Model

Wind Farm

Torsional Modes

Sub

Synchronous Resonance