Realization of Torsional Response based on Multi-mass Modeling of Turbine-Generator Shaft System

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

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 d...

a study on construction of iranian life tables: the case study of modified brass logit system

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Sensitivity Analysis on Turbine-Generator Shaft Torque in 154kV Transmission System

The torsional stress is caused by interaction between electrical transient air-gap torque by electrical disturbances and mechanical torque of turbine-generator shaft system. If a transient shaft torque exceeds a certain threshold, the loss of fatigue life occurs and in the end it is possible to happen shaft failure. This paper discusses that which factors can damage to turbine-generator shaft a...

Influence of Shaft Torsional Stiffness on Dynamic Response of Four- stage Main Transmission System

Depressing Turbine-Generator Supersynchronous Torsional Torques by Using Virtual Inertia

Single-pole switching scheme is widely used in the Extra High Voltage system. However, the substantial negativesequence current injected to the turbine-generators imposes the electromagnetic (E/M) torque of double systemfrequency components during the dead time (between single-pole clearing and line reclosing). This would induce supersynchronous resonance (SPSR) torque amplifications on low pre...