Operating standby redundant controller to improve voltage source inverter reliability
Julian, Alexander L.
Blevins, Stephen T.
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This paper presents a digital control architecture that demonstrates operating standby redundancy for a voltage-source inverter (VSI) controller. The reliability analysis shows the increased lifetime of the VSI using a standby redundant controller. The VSI control system is designed to switch from the primary to the secondary controller when a fault to the primary controller occurs. Simulated and experimental results validate that the redundant controller design switches between field-programmable gate-array-based redundant controllers with no measurable disturbance to the output voltage.
The article of record as published may be found at http://dx.doi.org/10.1109/TAI.2010.2058081
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