Special Issue Article Open Access

Real and Reactive Power Compensation in Wind Farms by Static Synchronous Compensator

Abstract

The stability of Fixed Speed Induction Generator (FSIG) based wind turbines can be improved by a Static Synchronous Compensator (STATCOM). Under unbalanced grid voltage dips, the negative sequence voltage causes heavy generator torque oscillations that reduce the lifetime of the drive train. In this project, investigations on a Fixed Speed Induction Generator based wind farm in combination with a Static Synchronous Compensator under real and reactive power compensation. A Static Synchronous Compensator control structure with the capability to coordinate the control between the positive and the negative sequence of the grid voltage is proposed. The results clarify the effect of the positive and the negative sequence voltage compensation by a Static Synchronous Compensator on the operation of the Fixed Speed Induction Generator based wind farm with first priority, the Static Synchronous Compensator ensures power compensation ride through enhancement of the wind farm.

Kanakarathinam.P, Manikandan.M

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