Control Schemes for Reducing Second Harmonic Current in Two-Stage Single-Phase Converter: An Overview From DC-Bus Port-Impedance Characteristics

• Published in: IEEE transactions on power electronics Vol. 34; no. 10; pp. 10341 - 10358
• Main Authors: Zhang, Li, Ruan, Xinbo
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.10.2019; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Bus-current-controlled converter (BCCC); bus-voltage-controlled converter (BVCC); Capacitors; Control systems; Converters; Data buses; dc-bus port impedance; DC-DC power converters; Decoupling; Direct current; Electric potential; Equivalent circuits; Impedance; Inverters; Production planning; Rectifiers; Reduction; second harmonic current (SHC); single-phase converter; Voltage control

The instantaneous input and output power of two-stage single-phase converter are imbalanced, resulting in the second harmonic current (SHC) in the dc-dc converter, dc source, or dc load. This paper revisits the SHC reduction control schemes from the dc-bus port-impedance perspective. The dc-dc conve...