دانلود رایگان مقاله انگلیسی, مدل امپدانس مبتنی بر تحلیل SSR برای نوع 3 ژنراتور بادی و شبکه جبران شده سری

Impedance-Model-Based SSR Analysis for Type 3 Wind Generator and Series-Compensated Network

سال انتشار : 2012

نوع مقاله : IEEE JOURNAL & MAGAZINES

تعداد صفحات : 7

Abstract—Interaction between doubly fed induction generator

(DFIG) Type 3 wind generators and series-compensated networks

can lead to subsynchronous resonance (SSR) oscillations—a phenomenon

observed in the real world. In this paper, impedancebased

Nyquist stability criterion is applied to analyze the SSR

phenomena. Impedance models of a DFIG along with its rotorside

converter (RSC) and grid-side converter, and a seriescompensated

network are derived in terms of space vectors. The

DFIG impedance and the network impedance are analyzed to show

the impact of wind speed, compensation level, and RSC current

controller gain on SSR stability. Nyquist maps are also used to

demonstrate the impact on SSR stability. Simulation studies are

carried out to show SSR controller interaction. This paper successfully

demonstrates that the interaction between the electric

network and the converter controller is a leading cause of the SSR

phenomena recently observed in wind generation grid integration.

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