CAJ | 학술논문

本文提出了一种关于微电网的基于下垂特性的分布式协同分配方法。该方法考虑了多个逆变器并网的实验运行情况，通过两台三线逆变器的并网和孤岛运行仿真实验，证明了下垂控制以及功率准确分配的功能。微网在联网情况下能通过主网的频率自动运行并且输出高质量电能。同时，该方法也保证了负载电压以及频率的稳定性，仿真实验也证明基于下垂特性的控制器可以使得微电网在并网和孤岛两种模式下平滑的切换。
본문제출료일충관우미전망적기우하수특성적분포식협동분배방법。해방법고필료다개역변기병망적실험운행정황，통과량태삼선역변기적병망화고도운행방진실험，증명료하수공제이급공솔준학분배적공능。미망재련망정황하능통과주망적빈솔자동운행병차수출고질량전능。동시，해방법야보증료부재전압이급빈솔적은정성，방진실험야증명기우하수특성적공제기가이사득미전망재병망화고도량충모식하평활적절환。
This paper proposes a co-allocation method on the grid,which is the system of the distributed collaborative architecture based on droop characters. The multiple micro inverters-based distributed generation(DG)to connect to the grid is verified. Through the three line simulation experi-ence of two inverters in the connected mode or stand-alone mode,the simulation results show the ef-fect of droop control and confirm the load-sharing function. Micro-grids in the connected mode is able to run automatically with the grid frequency and output high quality electricity and in island operation mode it can realize load power sharing of the parallel DG of micro-grids. Simultaneously,it also ensures the stability of the load voltage and frequency and the droop-based controller can make the micro-grids mesh smooth switching between the two kinds of operation mode.