@CHAPTER{ iet:/content/books/10.1049/pbpo090e_ch2, author = {Shin'ya Obara}, keywords = {fuel cell combined cycle;pumped hydropower generation;interconnected microgrids;large-scale commercial power system interconnection;interconnected coal gasification fuel cell power generation;}, title = {Key concepts [microgrids]}, booktitle = Clean Energy Microgrids, publisher = {Institution of Engineering and Technology}, year = {2017}, pages = {51-108}, series = {Energy Engineering}, doi = {10.1049/PBPO090E_ch2}, url = {https://digital-library.theiet.org/;jsessionid=2mrm2nmqt7064.x-iet-live-01content/books/10.1049/pbpo090e_ch2} }