Super Capacitor Energy Storage System's Charging Design Based on Composite Control Mode
- Resource Type
- Conference
- Authors
- Wang, Ziming; Lin, Hongyi; Guo, Xiao; Li, Zhenyu; Chen, Guozhu
- Source
- 2021 6th International Conference on Power and Renewable Energy (ICPRE) Power and Renewable Energy (ICPRE), 2021 6th International Conference on. :950-954 Sep, 2021
- Subject
- Power, Energy and Industry Applications
Renewable energy sources
Buck converters
Simulation
Capacitors
Rectifiers
Supercapacitors
Transformers
energy storage
super capacitor
Buck converter
composite control mode
- Language
- ISSN
- 2768-0525
Devices such as DVR and HPQC require supercapacitor energy storage units. Traditional supercapacitor energy storage units use constant current and constant power modes for charging, and there is a problem that the DC bus voltage cannot be stabilized. This article proposes a simple high-voltage supercapacitor charging circuit and its control scheme. The scheme uses a circuit that combines an isolation transformer, a three-phase uncontrolled rectifier bridge and a Buck converter, and uses a composite control mode that combines DC bus voltage feedforward and Buck circuit voltage and current loop. The simulation results show that the compound control mode can suppress the output current jump and reduce the DC bus voltage jump.