CAJ | 학술논문

针对小型风力发电系统中风速和负载突变引起的功率波动，采用蓄电池和超级电容器组成混合储能系统进行平抑，为充分利用蓄电池和超级电容器所具有的互补性能，研究了能量管理控制策略。根据风速及负载的变化和超级电容器的荷电状态，控制混合储能装置的工作模式，使风力发电机、蓄电池和超级电容器3个能量源协调工作。为验证能量管理策略的有效性，用Matlab/Simulink进行仿真研究。仿真结果表明：风力发电机输出功率波动且负载突变时，采用混合储能能够减小功率波动对系统的冲击，使蓄电池工作在优化的充放电状态，有助于延长蓄电池使用寿命，加快储能装置响应速度，提高系统能量利用效率。
침대소형풍력발전계통중풍속화부재돌변인기적공솔파동，채용축전지화초급전용기조성혼합저능계통진행평억，위충분이용축전지화초급전용기소구유적호보성능，연구료능량관리공제책략。근거풍속급부재적변화화초급전용기적하전상태，공제혼합저능장치적공작모식，사풍력발전궤、축전지화초급전용기3개능량원협조공작。위험증능량관리책략적유효성，용Matlab/Simulink진행방진연구。방진결과표명：풍력발전궤수출공솔파동차부재돌변시，채용혼합저능능구감소공솔파동대계통적충격，사축전지공작재우화적충방전상태，유조우연장축전지사용수명，가쾌저능장치향응속도，제고계통능량이용효솔。
In view of the fluctuant power of the small wind power generation system caused by the change of wind speed and load, a hybrid energy storage system which consists of batteries and super capacitors is used to overcome the fluc-tuation. In order to fully utilize the complement performance of batteries and super capacitors,this paper studies the energy management control strategy. According to the change of wind speed and load and the state of charge of super capacitors,the operating mode of the hybrid energy storage device is so controlled that the three energy sources of wind generators, batteries and super capacitors work in a well-coordinated manner. Simulation experiments are conducted for the proposed energy management strategy and the results show that under the fluctuation power of wind generator and mutating load, the hybrid energy storage can reduce the fluctuation power of the wind system, and the charge/discharge current of batteries works well in the optimized state,contributing to extend the life of batteries and improve the system response speed and the energy efficiency.