摘要
超级电容的功率密度高、循环次数大,蓄电池的能量密度大、储能成本较低,因此结合两种储能的优点,建立了蓄电池-超级电容共直流母线的混合储能仿真模型,采用滤波和电流滞环协调控制策略,由超级电容来平抑系统功率波动的高频分量,蓄电池负责平衡系统功率波动的低频分量。仿真结果表明超级电容能有效平抑高频波动,蓄电池运行工况良好,协调控制策略取得较好效果。
Supercapacitor has high power density and large cycle times.Battery has large energy density and low cost.Combining the advantages of the two kinds of energy storage,a hybrid energy storage simulation model of battery-supercapacitor common DC link is established,and the coordinated control strategy of filtering and current hysteresis loop is adopted.The supercapacitor flattens the high-frequency component of the system power fluctuation,and the battery is responsible for balancing the low-frequency component of the system power fluctuation.The simulation results show that the supercapacitor can effectively smooth the high-frequency fluctuation,the battery operating conditions are good,and the coordinated control strategy achieves good results.
作者
徐福聪
XU Fucong(State Grid Fujian Electric Power Co.,Ltd.,Fuzhou 350003,China)
出处
《电工技术》
2023年第7期4-6,共3页
Electric Engineering
关键词
蓄电池
超级电容
滤波
电流滞环控制
battery
supercapacitor
filtering
hysteresis current control
