摘要
离网型风电系统中引入混合储能装置,能显著提高系统运行稳定性。考虑到蓄电池与超级电容功能上的互补特性,提出了模糊控制与非线性死区特性相结合的方式。利用模糊控制对死区特性的控制参数进行合理的选取,达到优化蓄电池与超级电容充放电过程的目的。基于Matlab/Simiulink平台搭建风电混合储能系统并进行相应仿真,对比使用模糊控制与否时的功率分配效果,得出了上述控制策略对蓄电池在电量充足和电量不足时的充放电有较为合理的控制,延长了储能系统的使用寿命。
The introduction of hybrid energy storage device in off-grid wind power system can significantly improve the stability of the system operation. Taking into account the complementary characteristics of battery and super capacitor in function, a combination of fuzzy control and nonlinear dead zone characteristics was proposed. The fuzzy control was used to reasonably select the control parameters of the dead zone characteristic to optimize the charging and discharging process of the battery and the super capacitor. Based on the Matlab/Simiulink platform, hybrid wind energy storage system was built and the corresponding simulation was carried out. Compared with the power allocation effects when using fuzzy control or not, it is concluded that the above control strategy has more reasonable control for the charging and discharging of the battery when the battery is full or insufficient, and the service life of the energy storage system is prolonged.
作者
杨康
潘庭龙
吴定会
YANG Kang;PAN Ting-long;WU Ding-hui(School of IOT Engineering, Jiangnan University,Wuxi 214122,China)
出处
《测控技术》
CSCD
2018年第7期132-135,139,共5页
Measurement & Control Technology
关键词
风电系统
混合储能
模糊控制
死区特性
wind power system
hybrid energy storage
fuzzy control
dead zone characteristics
