摘要
为了降低直流微网母线电压的波动,提出基于双向DC/DC变换器的储能控制策略。运用直流母线电压外环,双向DC/DC变换器电感电流内环的控制方法实现直流微网与储能系统之间能量的双向流动。在系统电压产生波动时能够恢复到正常工作电压状态。通过仿真验证所提控制策略的正确性。仿真表明储能系统通过控制策略可以实现能量的双向传递。并且当电压突变时,储能系统可以使直流母线电压稳定,提高了系统可靠性。
In order to reduce the micro bus voltage fluctuation, a kind of control strategy on energy storage is put forward based on the bi-directional DC/DC converter. By using the DC bus voltage outer loop and hi-directional DC/DC converter, the control method of inductance current inner loop was used to realize two-way flow of energy between micro DC-Gird and energy storage systems When the system voltage fluctuations, it can restore a stable state. The simulation verifies the correctness of the proposed control strategy. Simulation results show that energy storage system through the control strategy can realize two-way transfer of energy. When the voltage mutates, energy storage system can realize the DC bus voltage stability and improve the system reliability.
出处
《太原科技大学学报》
2016年第2期108-113,共6页
Journal of Taiyuan University of Science and Technology
基金
中国博士后基金第7批特别资助(2014T70234)
中国博士后基金第53批(2013M530895)
关键词
直流微网
储能系统
稳定电压
micro DC-Gird
storage system
voltage stability
