Design and Implementation of a Coordinated Control Method for Energy Storage Systems
The output of wind and solar power generation units in an independent microgrid system is greatly affected by natural factors such as wind speed,light intensity,and temperature.Its output power is fluctuating and intermittent,and the electricity load is also randomly fluctuating.These fluctuations often account for a high proportion of the total power of the entire microgrid system.By controlling energy storage charging and discharging,the fluctuation of microgrid connected power is suppressed,and the"friendli-ness"of clean energy access to the grid is improved,This is a feasible solution.,a coordinated control method is proposed for energy storage systems based on multi-source information fusion.Analyze the working status of the energy storage system,select the power of the Buck/Boost bidirectional converter and the current of the AC/DC bidirectional converter as the underlying control object parame-ters;Design intelligent control algorithms,extract parameters,fuse and select them through the fully connected layer,and output po-tential control results from the output layer;Combining control algorithms to construct an energy storage system controller,the coordi-nated control of the energy storage system is achieved by combining the Buck/Boost bidirectional converter power outer loop and the AC/DC bidirectional converter current inner loop.In order to verify whether the proposed method has ideal coordinated control ability in practical applications,experimental tests were conducted on the method at a wind power generation base.The results showed that the proposed method can achieve balanced distribution of Buck/Boost bidirectional converter power and AC/DC bidirectional convert-er current to suppress fluctuations,and can effectively control the charge of the energy storage system to maintain 390MC,with excel-lent coordinated control effect.
energy storage systemconvertercoordinated controlpower outer ringcontrol modelbalanced distributionclean energy