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An optimal hybrid supercapacitor and battery energy storage system in wind power application

机译:风力发电应用中的最优混合超级电容器和电池储能系统

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In this paper, we optimize a hybrid energy storage system that includes a supercapacitor and a battery storage system for economical dispatching of the intermittent wind power source. In the optimal hybrid energy storage system, based on the technical merits of each storage, the supercapacitor is used to compensate a short-term wind power fluctuation, whereas the battery plays as a long-term one to dispatch a stable power into grid. In order to allocate optimally the power flow between two storages, the supercapacitor power is effectively determined based on a zero-phase low-pass filter, and the battery power commits an average dispatching method to stabilize the power dispatch. To obtain the optimal capacity in hybrid energy storage system (HESS), the smoothing time constant of the zero-phase low-pass filter in each dispatching interval is optimized by using the particle swarm optimization (PSO) method. In order to evaluate the proposed optimal system, a numerical example is performed using a 3-MW wind turbine generator with a real wind speed data.
机译:在本文中,我们优化了混合动力储能系统,该系统包括超级电容器和电池储能系统,可经济地分配间歇性风能资源。在最优混合储能系统中,基于每个储能器的技术优势,超级电容器用于补偿短期风能波动,而电池则起着长期的作用,将稳定的电能分配到电网中。为了在两个存储之间最佳地分配功率流,基于零相低通滤波器有效地确定超级电容器功率,并且电池功率提出了一种平均分配方法来稳定功率分配。为了获得混合储能系统(HESS)的最佳容量,使用粒子群优化(PSO)方法对每个调度间隔中的零相低通滤波器的平滑时间常数进行了优化。为了评估建议的最佳系统,使用具有实际风速数据的3兆瓦风力发电机组进行了数值示例。

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