A high frequency, low voltage stackable full bridge module for modular multilevel cascade converter (MMCC) research

Walker, Geoffrey R., Broadmeadow, Mark, & Ledwich, Gerard (2014) A high frequency, low voltage stackable full bridge module for modular multilevel cascade converter (MMCC) research. In 7th IET International Conference on Power Electronics, Machines and Drives (PEMD 2014), 8 - 10 April 2014, Manchester, United Kingdom.

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A new small full bridge module for MMCC research is presented. Each full bridge converter cell is a single small (65 × 30 mm) multilayer PCB with two low voltage high current (22 V, 40 A) integrated half bridge ICs and the necessary isolated control signals and auxiliary power supply (2500 V isolation). All devices are surface mount, minimising cell height (4 mm) and parasitic inductance. Each converter cell can be physically stacked with PCB connectors propagating the control signals and inter-cell power connections. Many cells can be trivially stacked to create a large multilevel converter leg with isolated auxiliary power and control signals. Any of the MMCC family members is then easily formed. With a change in placement of stacking connector, a parallel connection of bridges is also possible. Operation of a nine level parallel full bridge is demonstrated at 12 V and 384 kHz switching frequency delivering a 30 W 2 kHz sinewave into a resistive load. A number of new applications for this novel module aside from MMCC development are listed.

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ID Code: 74445
Item Type: Conference Paper
Refereed: Yes
ISBN: 9781849198158
Divisions: Current > Schools > School of Electrical Engineering & Computer Science
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 27 Jul 2014 23:01
Last Modified: 28 Jul 2014 22:38

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