In view of the voltage and current fluctuations in the bidirectional DC/DC converter during the bidirectional energy transmission,a bidirectional DC/DC converter based on Cuk topology is adopted.A current feedback loop is added to the PI controller to suppress voltage and current fluctuations during energy transmission.The stability of the output voltage and current of the system was analyzed in LTspice software and Matlab/Simulink simulation software.In this way,the circuit design of bidirectional DC/DC converter based on Cuk topology,the design of PI controller,and the open-loop simulation of the system can be realized.
关键词
Cuk电路/双向DC/DC转换器/蓄电池充电/PI控制
Key words
Cuk Circuit/Bidirectional DC/DC Converter/Battery Charging/PI Control