CAJ | 학술논문

针对采用主从控制模式，以储能系统作为组网单元的联网/孤岛双模式运行的微电网系统，首先介绍了微电网联网/孤岛双模式无缝切换控制策略；其次提出了“外环并行，内环共用”的储能换流器P/Q模式与V/f模式归一化控制模型，同时完成归一化控制器的参数设计以及归一化控制系统的稳定性分析；依托RT_Lab实时仿真平台，完成微电网联网/孤网双模式运行实时仿真模型搭建，完成控制策略的仿真分析，最后在国家能源大型风电并网系统研发（实验）中心微电网实验平台进行了微电网联网/孤岛双模式无缝切换实验，实验结果验证了控制方法的有效性。
침대채용주종공제모식，이저능계통작위조망단원적련망/고도쌍모식운행적미전망계통，수선개소료미전망련망/고도쌍모식무봉절환공제책략；기차제출료“외배병행，내배공용”적저능환류기P/Q모식여V/f모식귀일화공제모형，동시완성귀일화공제기적삼수설계이급귀일화공제계통적은정성분석；의탁RT_Lab실시방진평태，완성미전망련망/고망쌍모식운행실시방진모형탑건，완성공제책략적방진분석，최후재국가능원대형풍전병망계통연발（실험）중심미전망실험평태진행료미전망련망/고도쌍모식무봉절환실험，실험결과험증료공제방법적유효성。
Firstly,the control technology of seamless switching was studied for the microgrid system under islanded &grid-connected operation mode,which used master-slave control mode and energy storage system converter as the gird-forming unit.Then the P/Q and V/f normalized control model of energy storage converter was proposed with ‘outer parallel,inner shared’strategy.Meanwhile,the parameter design of normalized controller was completed,as well as the stability analysis.The real-time simulation model of microgrid under islanded &grid-connected operation mode was built in the RT_Lab real time simulation platform,and the analysis of the control strategy was carried out.Finally,the microgrid seamless switching experiment under islanded &grid-connected operation mode was carried out in the National Wind Power Grid Integration R&D (Testing)Center microgrid platform,and the experiment results verified the effectiveness of the control method.