Alternate arm modular multilevel converter energy balancing via overlap onset control. Issue 16 (5th February 2019)

• Record Type: Journal Article
• Authors: Howell, Steven; Wang, Haiyue; Filizadeh, Shaahin
• Is Part Of: Journal of engineering. Volume 2019:Issue 16(2019)
• Page Start: 1649
• Page End: 1655
• Publication Date: 2019-02-05
• Subjects: EMTP -- power system simulation -- power system CAD -- zero current switching -- HVDC power convertors -- voltage control -- switching convertors -- power capacitors; overlap onset control -- AAC commutation -- output voltage quality -- steady‐state converter models -- capacitor voltage regulation method -- AAC operating range -- alternate arm modular multilevel converter -- OOCs -- energy balancing -- submodule voltage regulation -- zero‐current switching controls -- electromagnetic transient simulation -- PSCAD‐EMTDC; Engineering -- Periodicals; Engineering; Electronic journals; Periodicals; 620.005
• DOI: 10.1049/joe.2018.8787
• Languages: English
• ISSNs: 2051-3305

Abstract

Abstract : This study introduces a novel method called overlap onset control (OOC) to balance and maintain alternate arm modular multilevel converter (AAC) submodule capacitor voltages at their desired value. OOC performs zero‐current switching and controls the timing of AAC commutation to regulate submodule voltages while retaining output voltage quality. The study uses steady‐state converter models to develop the mathematical foundations behind the proposed capacitor voltage regulation method and then presents electromagnetic transient simulation results in PSCAD/EMTDCto demonstrate OOC's ability to extend the AAC operating range.