中文摘要：

复合储能系统能够发挥不同储能方式的优势，有效提高储能系统的综合性能。针对并网风电功率调控目标，考虑不同储能方式的特性，构建一种基于蓄电池和飞轮储能的复合储能系统结构和数学模型，并重点研究其控制策略。通过合理设计中央管理层的控制策略，可以保障复合储能系统安全稳定运行，并对其吞吐功率进行优化，从而能够提高风电功率的调控效果；对于储能单元控制器，提出了蓄电池的功率和能量两种激活模式，并结合多模态电流滞环控制方法，实现功率在复合储能系统的各储能单元间合理流动。仿真结果表明，所提复合储能系统及其控制策略是可行有效的。

英文摘要：

Hybrid energy storage system （HESS） has the merits of different energy storage technologies, and it can enhance the comprehensive performance of the energy storage system. This paper focused on the target of wind power control, and considering the characteristics of different energy storage types, the configuration and mathematical model of a HESS consisted of battery and flywheel energy storage system （FESS） were constructed, and its control strategies were studied. By optimized designing of the central supervisor, the safety and the stability of HESS operation were ensured, and the absorbed or released power of HESS was optimized, so as to improve the effect of wind power conditioning. To achieve proper power exchange in different energy storage units, in the energy-storage-unit controller, the two activate modes for battery named power- and energy- mode were designed, and the multi-mode current hysteresis control strategy for battery was applied also. The simulation results validated the feasibility and effectiveness of the designed HESS and its controllers.