CAJ | 학술논문

为降低大容量分布式并网光伏的影响，对共直流母线的光伏-混合储能发电系统及其优化控制方案进行了研究。首先，分析了共直流母线并网光伏电站结构。然后，综合考虑公共连接点处电能质量和储能元件特性，设计了基于双重滤波的协调控制策略。第一重滤波根据蓄电池荷电状态自适应调节滤波器参数，调节混合储能输出功率，平抑并网光伏输出功率波动。第二重滤波根据超级电容荷电状态自适应调节滤波参数，对两种储能介质进行功率分配，优先采用超级电容补偿功率偏差，减少蓄电池充放电次数，提升混合储能技术经济性。最后，搭建了基于ABB Symphony TM Plus和Opal-RTLAB的硬件在环实验平台。实验证实了上述方法的有效性。
위강저대용량분포식병망광복적영향，대공직류모선적광복-혼합저능발전계통급기우화공제방안진행료연구。수선，분석료공직류모선병망광복전참결구。연후，종합고필공공련접점처전능질량화저능원건특성，설계료기우쌍중려파적협조공제책략。제일중려파근거축전지하전상태자괄응조절려파기삼수，조절혼합저능수출공솔，평억병망광복수출공솔파동。제이중려파근거초급전용하전상태자괄응조절려파삼수，대량충저능개질진행공솔분배，우선채용초급전용보상공솔편차，감소축전지충방전차수，제승혼합저능기술경제성。최후，탑건료기우ABB Symphony TM Plus화Opal-RTLAB적경건재배실험평태。실험증실료상술방법적유효성。
This paper proposes an optimal control method based on double filters for PV-HES (Hybrid Energy Storage) power system with common DC bus. Firstly, the diagram of common DC bus based PV-HES power system is analyzed. And then, an optimal control method based on double filters is designed considering the power quality of PCC and characteristics of energy storage. The first filter can be adjusted adaptively according to the state of charge (SOC) of battery to level off the fluctuating power outputs of intermittent sources; the second filter, which is used to manage the distribution of load power between battery and supercapacitor, can be adjusted adaptively according to the SOC of supercapacitor. Finally, the real-time platform based on ABB Symphony TM Plus and Opal-RTLAB is built and the experimental results show the effectiveness of proposed optimal control method.