Mobile QR Code QR CODE : The Korean Institute of Power Electronics
Title Bidirectional Charging/Discharging Digital Control System for Eco-friendly Capacitor Energy Storage Device Implemented by TMS320F28335 chip
Authors 李Jung-Im Lee ; 李Jong-Hyun Lee ; 烈An-Yoel Jung ; 李Choon-Ho Lee ; Joung-Hu Park ; Hee-Jong Jeon
DOI 10.6113/TKPE/2010.15.3.188
Page pp.188-198
ISSN 1229-2214
Keywords EDLC(Electric Double Layer Capacitor); Charger/Discharger; Bidirectional DC-DC Converter; Digital Controller
Abstract Recently, as the demand of the environmental-friendly energy storage system such as an electric double-layer condenser increases, that of the bidirectional charger/discharger for the systems also increases. However, when charging/discharging mode-change occurs, the charger/discharger employing a bi-directional DC-DC converter with a commercialized analog controller has a complex circuit scheme, and a poor transient response. On the other hand, if a single digital controller is used for the bi-directional mode, the system performances can be improved by application of an advanced power-processing algorithm. In the paper, an environmental-friendly power storage systems including an Electric Double Layer Capacitor(EDLC) banks were developed with a bi-directional buck-boost converter and a digital signal processor (TMS320F28335). A simulation test-bed was realized and tested by MATLAB Simulink, and the hardware experiment was performed which shows that the dynamic response was improved such as the simulation results.