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Smoothing of wind power using flywheel energy storage system

机译：使用飞轮储能系统平滑风能

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摘要

Flywheel systems are quick acting energy storage that enable smoothing of a wind turbine output to ensure a controllable power dispatch. The effectiveness of a flywheel depends on how well it can be controlled to respond to fluctuating power output from intermittent sources. A quadratic Lyapunov function based non-linear controller is proposed which is designed based on an implicit understanding of the system including its inherent nonlinearities. Two different configurations of flywheel designs have been studied. The controller ensures asymptotic stability of the system as well as obtaining a better and more reliable performance than linear proportional-integral controllers in tracking rapid changes in power references. A further benefit is that the tuning of the proposed controller remains unaffected by changes in the system parameter and operating conditions. The efficacy of the algorithm is verified using non-linear time-domain simulation in MATLAB.
机译：飞轮系统是快速作用的能量存储装置，可平滑风力涡轮机的输出，以确保可控的功率分配。飞轮的有效性取决于其对间歇性电源输出功率波动的响应程度。提出了基于二次Lyapunov函数的非线性控制器，该控制器是基于对系统的固有了解（包括其固有的非线性）而设计的。研究了飞轮设计的两种不同配置。在跟踪功率基准的快速变化时，该控制器可确保系统的渐近稳定性，并获得比线性比例积分控制器更好，更可靠的性能。另一个好处是，建议的控制器的调整不受系统参数和操作条件变化的影响。使用MATLAB中的非线性时域仿真验证了该算法的有效性。

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