摘要
为避免大电流对复合电源中蓄电池组造成伤害的问题,分析BUCK型DC/DC变换器的工作原理,采用PID闭环控制的方法,输出改变IGBT开关占空比的脉冲宽度调制信号,控制超级电容组输出功率,保持蓄电池组的输出功率不超过理想值。搭建了复合电源仿真模型,仿真结果验证了方案的可行性和准确性。
Aiming at the problem how to avoid large current damage to the battery pack in the composite power supply, the working principle of BUCK DC/DC converter was analyzed. Using PID closed-loop control method, output pulse width modulation signal that changes the duty cycle of IGBT switch Control the output power of the super capacitor group to keep the output power of the battery pack from exceeding the ideal value. Finally, a compound power supply simulation model was built. The simulation results verify the feasibility and accuracy of the scheme.
作者
王正义
陈庆樟
王康
王尚
WANG Zhengyi;CHEN Qingzhang;WANG Kang;WANG Shang(School of Automotive Engineering, Changshu Institute of Technology, Changshu 215500,China;School of Mechanical and Electric Engineering, Soochow University, Suzhou 215000,China)
出处
《机械与电子》
2019年第3期68-71,共4页
Machinery & Electronics
基金
江苏省自然科学基金资助项目(BK20151259)
苏州市科技计划工业应用指导项目(SGZ2014019)
关键词
复合电源
BUCK电路
PID控制
闭环仿真
compound power supply
BUCK circuit
PID control
closed loop simulation
