钒液流电池在微电网并网运行中的仿真研究

Simulation of vanadium redox flow battery in on-grid of micro grid

随着越来越多大规模光伏、风电等新能源的并网运行,其输出功率随机波动性给电网的安全运行带来的影响也愈发严重,利用储能技术来平滑风电场、光伏电站输出功率的波动是有效手段之一,对储能媒介建模及其控制的深入研究至关重要。介绍了钒液流电池(Vanadium Redox Flow Battery,VRB)的工作原理,在Matlab/Simulink中建立其模型,得到在恒流充放电条件下VRB堆栈电压变化曲线。将该模型应用在微电网并网运行模式中,证明了其可行性。

With more and more large-scale photovoltaic,wind power and other new energy operating in parallel with the grid,the influence of volatility of the output power on the safe operation of power grid is becoming more and more serious.The working principle of the VRB was introduced,and the model of VRB was established in Matlab/Simulink.The model was simulated by the toolbox of Matlab with constant current,getting the stack voltage curve of the VRB.Its feasibility is proved by applying it in the control of on-grid.