Study on sub synchronous resonance alleviation for DFIG based wind farms by using TCSC
Corressponding author's email:
bonnn@hcmute.edu.vnDOI:
https://doi.org/10.54644/jte.64.2021.55Keywords:
sub synchronous resonance (SSR), double fed induction generator (DFIG), thyristor-controlled series capacitors (TCSC), induction generator effect (IGE), torque interaction (TI), torque amplification (TA)Abstract
Using series capacitors on the transmission line improves the transmission capacity. However, the use of series capacitors can cause Sub Synchronous Resonance (SSR). This paper presents the basic theories of SSR, mathematical models of double fed induction generators (DFIG), transmission line models using series capacitors. A TCSC device is used to remove SSR at high compensation levels, the principle of operation and control of TCSC is also presented in this paper. The IEEE First Benchmark model (IEEE FBM) was modified with a 100 MW DFIG wind power system to accommodate the study. The results of the paper are done by simulating the time domain on the Matlab / Simulink software. The results show that SSR is effectively eliminated when using TCSC at high compensation levels.
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