混合储能参与自动发电控制容量优化配置

储能装置参与调频具有成本高和寿命短的特点,需要进行容量优化配置来降低成本才能提高其实用性.以年综合成本最小为目标,根据白噪声随机扰动与风电扰动数据组成的区域控制偏差,对超级电容器和蓄电池共同构成的混合储能系统进行容量优化配置,并通过仿真验证所提容量配置策略的优越性.配置过程中对区域控制偏差进行分配时,采用超级电容器优先充放电的功率分配方法,与常规的频域分解方法相比,能够显著降低蓄电池的充放电损耗,并提高储能系统参与调频的整体经济性.

Participation of hybrid energy storage in capacity optimization configuration of automatic generation control system

The energy storage device has the characteristics of high cost and short life when participating in frequency modulation. It is necessary to optimize the configuration of the capacity to reduce the cost in order to improve its practicality. In aim of minimizing the annual comprehensive cost, and based on the area control error composed of white noise and wind power disturbance data, the capacity optimization configuration of the hybrid energy storage system composed of supercapacitors and batteries is carried out, and the superiority of the proposed capacity allocation strategy is verified by simulation. Compared with the conventional frequency domain decomposition method, the priority of supercapacitor charging used in the configuration process can significantly reduce the charging loss of the battery and improve the overall economy of frequency regulation of the energy storage system.