摘要
为实现直流微电网母线电压低频波动抑制需要实现对储能双向DC-DC变换器的控制。为此,设计了储能DC-DC变换器控制系统,采用PI控制实现了电压外环电流内环的双闭环控制,根据荷电量状态设计了超级电容的充放电控制策略。最后搭建了超级电容储能DC-DC实验系统,采用自动代码生成技术由MATLAB自动生成C代码实现对系统控制。在此基础上,对充电、放电、充放电三种情况分别进行实验,分析不同情况下的实验结果,结果验证了该设计的正确性。
To realize the suppression of low-frequency fluctuation of DC microgrid bus voltage needs to realize the control of energy storage bidirectional DC-DC converter.The control system of the energy storage DC-DC converter is designed,and the PI control is used to realize the double closed-loop control of the voltage outer loop and current inner loop,and the charging and discharging control strategy of the supercapacitor is designed according to the state of the charge.Finally,a supercapacitor energy storage DC-DC experimental system is built,and the system control is realized by automatically generating C code from MATLAB using automatic code generation technology.On this basis,experiments are carried out on charging,discharging,and charging and discharging respectively,and the experimental results in different cases are analyzed,and the results verify the correctness of the design of this paper.
出处
《工业控制计算机》
2024年第10期136-137,共2页
Industrial Control Computer
