Robust Active Power Control of a Battery-Supported DSTATCOM to Enhance Wind Generation Power Flow

다국어 초록 (Multilingual Abstract)

The lack of controllability over the wind causes fluctuations in the output power of the wind generators (WGs) located at the wind farms. Distribution Static Compensator (DSTATCOM) equipped with Battery Energy Storage System (BESS) can significantly smooth these fluctuations by injecting or absorbing appropriate amount of active power, thus, controlling the power flow of WGs. But because of the component aging and thermal drift, its harmonic filter parameters vary, resulting in performance degradation. In this paper, Quantitative Feedback Theory (QFT) is used as a robust control scheme in order to deactivate the effects of filter parameters variations on the wind power generation power smoothing performance. The proposed robust control strategy of the DSTATCOM is successfully applied to a microgrid, including WGs. The simulation results obviously show that the proposed control technique can effectively smooth the fluctuations in the wind turbines’ (WT) output power caused by wind speed variations; taking into account the filter parameters variations (structural parameter uncertainties).

목차 (Table of Contents)

• Abstract
• 1. Introduction
• 2. The DSTATCOM Components
• 3. Harmonic Filter Design (The LCL Filter)
• 4. The Closed-loop Control by Applying QFT Controller
• 5. The Proposed DSTATCOM Active Power Control Algorithm
• 6. Simulation Results
• 7. Conclusion
• References

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