Title :
Multilevel modular matrix converter for high voltage applications: Control, design and experimental characteristics
Author :
Miura, Yushi ; Inubushi, Keiji ; Ito, Mitsutaka ; Ise, Toshifiimi
Author_Institution :
Osaka Univ., Suita, Japan
Abstract :
Control, design and operational characteristics of multilevel modular matrix converter (MMxC), which conducts ac/ac direct frequency conversion, are presented in this paper. MMxC consists of a large number of H-bridge cells connected in series and thus is suitable for high voltage and high power applications. After brief explanation about power flow and capacitor voltage balancing control schemes, the relationship between sampling frequency of the control system and switching frequency of switching devices is investigated through numerical simulation of a 9-level MMxC. In addition, the design of the cell capacitor is also described. Moreover, experimental results of 50 Hz / 60 Hz and 60 Hz / 60 Hz conversion operations using the 2-kW 5-level MMxC are presented.
Keywords :
AC-AC power convertors; capacitor switching; frequency convertors; load flow control; matrix convertors; numerical analysis; voltage control; AC-AC direct frequency conversion; H-bridge cell capacitor; MMxC; capacitor voltage balancing control scheme; design characteristics; frequency 50 Hz; frequency 60 Hz; high power applications; high voltage applications; multilevel modular matrix converter; numerical simulation; operational characteristics; power 2 kW; power flow control scheme; sampling frequency; switching frequency devices; Capacitors; Frequency conversion; Matrix converters; Switches; Switching frequency; Vectors; Voltage control; capacitor voltage balancing control; modular matrix converter; space vector control;
Conference_Titel :
Industrial Electronics Society, IECON 2014 - 40th Annual Conference of the IEEE
DOI :
10.1109/IECON.2014.7049209
