A novel space vector control with capacitor voltage balancing for a multilevel modular matrix converter

摘要

A novel control scheme using space vector modulation for a multilevel modular matrix converter is proposed. According to this control scheme, the increase in amount of calculation as the number of cells increases can be moderately suppressed. Moreover, a capacitor voltage balancing control is also employed, which ensures the operation even under the condition input and output frequencies are almost the same. To verify the proposed control scheme, numerical simulation is carried out. In addition, experimental results of 60/50 Hz and 60/60 Hz conversions using a 1 kW modular matrix converter which consists of 9 H-bridge cells are presented.