CAJ | 학술논문

　　储能元件在风光互补发电系统组成的微网运行控制过程中具有重要地位，可以作为微网孤岛运行的组网电源，从而维持系统的电压和频率稳定。对于储能元件控制器，设计了一种包括功率环、逆变器滤波电容电压环以及滤波电感电流环的三环反馈解耦控制策略，分析了该策略在微网稳定运行和孤岛/联网模式无缝切换过程的作用。利用Matlab仿真了由储能元件、风电和光伏组成的微网系统并且建立了实验平台。仿真及实验结果表明，基于该控制策略的微网在孤岛运行、联网运行以及两者切换的过程中能够保持电压和频率稳定性，对微网内负荷供电可靠，并可实现微网孤岛/联网两种模式的平滑切换。
　　저능원건재풍광호보발전계통조성적미망운행공제과정중구유중요지위，가이작위미망고도운행적조망전원，종이유지계통적전압화빈솔은정。대우저능원건공제기，설계료일충포괄공솔배、역변기려파전용전압배이급려파전감전류배적삼배반궤해우공제책략，분석료해책략재미망은정운행화고도/련망모식무봉절환과정적작용。이용Matlab방진료유저능원건、풍전화광복조성적미망계통병차건립료실험평태。방진급실험결과표명，기우해공제책략적미망재고도운행、련망운행이급량자절환적과정중능구보지전압화빈솔은정성，대미망내부하공전가고，병가실현미망고도/련망량충모식적평활절환。
Energy storage component plays an important role in the operation and control process of microgrid which consists of wind and solar. It can be used as a main networking power in the islanded operation of microgrid, in order to maintain the system voltage and frequency stability. For energy storage component controller, a tricyclic feedback control strategy which consists of a power ring, a filter capacitor voltage ring and a filter inductor current ring is designed. And its role in the process of the stable operation of the microgrid and the island / network switching is analyzed. A microgrid system including the energy storage components, wind power and photovoltaic is simulated in MATLAB, and an experimental platform is established. Simulation and experimental results show that the control strategy can maintain voltage and frequency stability of the microgrid in islanding, networking, and the process of switching. It can also achieve a smooth switch between island/network mode of microgrid.