Ye, Manyuan; Kang, Lixuan; Xiao, Yunhuang; Song, Pinggang; Li, Song: 'Modified hybrid modulation strategy with power balance control for H-bridge hybrid cascaded seven-level inverter', IET Power Electronics, 2018, 11, (6), p. 1046-1054, DOI: 10.1049/iet-pel.2017.0558
IET Digital Library, https://digital-library.theiet.org/;jsessionid=6z78vdzswsrg.x-iet-live-01content/journals/10.1049/iet-pel.2017.0558