Multi-modular scalable DC-AC power converter for current injection to the grid based on predictive voltage control

Toledo, S.; Rivera, M.; Maqueda, E.; Ayala, M.; Pacher, J.; Romero, C.; Gregor, R.; Dragicevic, T.; Wheeler, P.

Abstract

Increasing world electrical energy demand make necessary to develop new efficient and reliable schemes for power injection to the existing grid under distributed generation frames. In this work a novel DC-AC control scheme is proposed, which is based on one hand, on several 2L-VSI working together as a multi-modular converter in a parallel switching connection topology in the power converter stage and, in the other hand, a control strategy using two loops, an internal based on predictive voltage control and another external applying a PR current control, achieving THD levels lower than 1% for the injected current, accomplishing with the international standards for these kind of applications.

Citation

Toledo, S., Rivera, M., Maqueda, E., Ayala, M., Pacher, J., Romero, C., …Wheeler, P. (2019). Multi-modular scalable DC-AC power converter for current injection to the grid based on predictive voltage control

• Conference Name: 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference (COBEP/SPEC 2019)
• Start Date: Dec 1, 2019
• End Date: Dec 4, 2019
• Acceptance Date: Aug 1, 2019
• Online Publication Date: Dec 4, 2019
• Publication Date: Dec 4, 2019
• Deposit Date: Feb 7, 2020
• Publicly Available Date: Feb 14, 2020
• Keywords: Index Terms-Current injection; distributed generation sys- tems; multi-modular VSI; parallel switches; predictive voltage control
• Public URL: https://nottingham-repository.worktribe.com/output/3917020
• Related Public URLs: https://r9.ieee.org/event/5th-ieee-southern-power-electronics-conference/
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