Predictive Voltage Control Operating at Fixed Switching Frequency of a Neutral-Point Clamped Converter

Herrera, Felipe; C�rdenas, Roberto; Rivera, Marco; Riveros, Jos� A; Wheeler, Patrick

Abstract

Uninterruptible power supply units are system formed by power electronics converters to supply sinusoidal voltages to feed critical loads. In this paper, a fixed switching frequency model predictive control strategy is presented for the control of the output voltage in an LC filter connected to a three-level NPC converter. The control objectives of the system are the tracking of the voltage reference and balance of the voltages of the dc-link capacitors. The mathematical model of the converter and the LC filter is developed and the control strategy is explained. Simulation results obtained in the Matlab/Simulink enviroment are presented to validate the control strategy

Citation

Herrera, F., Cárdenas, R., Rivera, M., Riveros, J. A., & Wheeler, P. (2019). Predictive Voltage Control Operating at Fixed Switching Frequency of a Neutral-Point Clamped Converter

• Conference Name: 2019 IEEE 15th Brazilian Power Electronics Conference and 5th IEEE Southern Power Electronics Conference (COBEP/SPEC)
• 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 12, 2020
• Keywords: Index Terms-Predictive control; DC-AC power converters; voltage control
• Public URL: https://nottingham-repository.worktribe.com/output/3916996
• Related Public URLs: https://www.ieee-pels.org/pels-news/512-cfp-cobep-spec-2019,-santos-brazil
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