期刊
IEEE TRANSACTIONS ON POWER ELECTRONICS
卷 36, 期 10, 页码 12127-12136出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPEL.2021.3074020
关键词
Capacitors; Capacitance; Voltage control; Control systems; Switches; Steady-state; Inductors; Adaptive control; capacitance mismatch; dc-split capacitor; single-phase converter; active power decoupling
资金
- Science and Technology Innovation Program of Hunan Province [2020RC4002]
- Hunan ProvincialKey Laboratory of Power Electronics Equipment and Grid [2018TP1001]
- National Natural Science Foundation ofChina [61933011, 51807206]
- Project of Innovation-Driven Plan in Central SouthUniversity [2019CX003]
- Major Project of Changzhutan Self-Dependent Innovation Demonstration Area [2018XK2002]
This article presents an adaptive power decoupling control strategy for a single-phase rectifier with an unbalanced split-capacitor decoupling circuit, eliminating the impact of capacitance mismatch and providing online monitoring for the health of split capacitors. Additionally, it explains the mechanism of capacitor voltages self-balance and conducts experiments to verify the effectiveness of the proposed method.
This article proposes an adaptive power decoupling control strategy for a single-phase rectifier with an unbalanced split-capacitor decoupling circuit. Since a capacitance mismatch estimator is integrated into the control strategy, the impact of capacitance mismatch is eliminated. Meanwhile, the capacitance mismatch estimator can provide an auxiliary online monitor for the health of split capacitors. Moreover, the mechanism of capacitor voltages self-balance is explained. Finally, experiments are conducted to verify the effectiveness of the proposed method.
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