Modular, multi-channel, interleaved power converters
A multi-phase power converter includes two or more multi-phase, bi-directional, multi-level, switching power converter subcircuits, connected in parallel at respective AC and DC sides, so as to provide a multi-channel, bi-directional, multi-level configuration. The AC sides of the switching converter subcircuits are directly coupled to one another and to a multi-phase AC input via series interface reactors, and the DC sides of the switching converter subcircuits are directly connected to one another and to a common split-capacitor bank at each level of the multi-level outputs of the switching converter subcircuits. A control circuit is configured to selectively control one or more switching semiconductor devices in each of the switching converter subcircuits. In some embodiments, the control circuit includes a closed-loop zero-sequence controller and a zero-sequence generator configured to eliminate circulating current among the switching converter subcircuits and to balance voltages across levels of the common split-capacitor bank.
- Research Organization:
- ABB Schweiz AG, Baden (Switzerland)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AR0000141
- Assignee:
- ABB Schweiz AG (Baden, CH)
- Patent Number(s):
- 10,727,762
- Application Number:
- 15/211,844
- OSTI ID:
- 1735090
- Resource Relation:
- Patent File Date: 07/15/2016
- Country of Publication:
- United States
- Language:
- English
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