DFIG-Based Wind Plant Coupled Series Compensated Transmission Line: Modeling and SSR Stability Analysis
By: Verma, Neevatika
.
Contributor(s): Kumar, Narendra.
Publisher: New York Springer 2022Edition: Vol, 103(6), Dec.Description: 1917-1926p.Subject(s): Electrical EngineeringOnline resources: Click here
In:
Journal of the institution of engineers (India): Series BSummary: Wind energy production is expanding and has become a terrific source of renewable energy. The installed capacity of wind energy has nearly doubled every 3 years during the past two decades of the twenty-first century. Wind farms typically are not close to the grid, so a series compensated transmission lines are required to improve the transfer capability of extant power transmission lines economically. Sub-synchronous resonance (SSR), which can cause torsional interactions that result in T-G shaft fatigue and a related protective mechanism, is always a risk with series compensation. A modified IEEE first benchmark model is employed for SSR analysis in this paper. Power transmission via a series compensated transmission line from a wind generator with a doubly fed induction generator (DFIG) base has been investigated. In this paper, the dynamics of the grid side converter (GSC) as well as rotor side converter (RSC) has utilized to model the DFIG. As a result, system dynamics may be greatly impacted. However, in previous paper for RSC and GSC, a constant voltage source model has been taken into consideration. Consequently, for some important parameters, these models are unable to replicate the dynamic effect of SSR. More accurate dynamics are reflected in the analysis by using GSC and RSC modeling. The effect of SSR under various operating conditions, such as wind speed changes and altering the series compensation, has been investigated using the eigenvalue analysis. Time-domain simulations have been conducted using MATLAB to verify the analysis.
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School of Engineering & Technology Archieval Section | Not for loan | 2022-2352 |
Wind energy production is expanding and has become a terrific source of renewable energy. The installed capacity of wind energy has nearly doubled every 3 years during the past two decades of the twenty-first century. Wind farms typically are not close to the grid, so a series compensated transmission lines are required to improve the transfer capability of extant power transmission lines economically. Sub-synchronous resonance (SSR), which can cause torsional interactions that result in T-G shaft fatigue and a related protective mechanism, is always a risk with series compensation. A modified IEEE first benchmark model is employed for SSR analysis in this paper. Power transmission via a series compensated transmission line from a wind generator with a doubly fed induction generator (DFIG) base has been investigated. In this paper, the dynamics of the grid side converter (GSC) as well as rotor side converter (RSC) has utilized to model the DFIG. As a result, system dynamics may be greatly impacted. However, in previous paper for RSC and GSC, a constant voltage source model has been taken into consideration. Consequently, for some important parameters, these models are unable to replicate the dynamic effect of SSR. More accurate dynamics are reflected in the analysis by using GSC and RSC modeling. The effect of SSR under various operating conditions, such as wind speed changes and altering the series compensation, has been investigated using the eigenvalue analysis. Time-domain simulations have been conducted using MATLAB to verify the analysis.
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