Energy management strategy of battery in isolated micro-grid based on state of charge(SOC)
Through the research on modeling and SOC estimation of the battery in the isolated Micro-grid, the behavior characteristics of the battery was analyzed under normal and stable operation, and further more, the condition was determined to guarantee the stability of system based on SOC of the battery. Under the premise of stable operation, a control strategy was put forward based on SOC to adjust the battery charging or discharging. The simulation shows that, compared with the system under traditional control strategy, the security and reliability of the power system is improved evidently. Keywords-Battery SOC Estimation Micro Grid Matlab/Simulink Simulation
An Inner Resistance Adaptive Model Based on Equivalent Circuit of Lithium-ion Batteries
Based on the present battery models,a novel non-linear battery model based on equivalent circuit was proposed.Furthermore,a method using Kalman filter to identify the inner resistance of the battery was studied which led to a resistance adaptive battery model.Two experiments,in which the battery underwent different current cycles and different temperatures,were implemented to test the battery model.Results show that the model proposed can describe the dynamic characteristics of the battery pack very well even when the battery pack varies caused by current,state of charge(SOC) and temperature etc.
PASSIVE AND LOW-ENERGY RESEARCH AND PRACTICES-DEHUMIDIFICATION
Methods of achieving acceptable indoor conditions in overheated, temperate, and underheated humid climates are discussed and compared. Desiccants and desiccant systems utilizing solid and liquid sorbents and various low-energy mechanical systems are described and evaluated.