相位交错控制DC-DC变换器的设计与实现  

Design and implementation of DC-DC converter by phase interlace control

作　　者：王秉荣[1] 焦斌亮[1,2] 王海明[3] 陈义鹏[1] 

机构地区：[1]燕山大学信息科学与工程学院,河北秦皇岛066004 [2]河北省特种光纤与光纤传感重点实验室,河北秦皇岛066004 [3]河北科技师范学院,河北秦皇岛066004

出　　处：《电源技术》2013年第10期1849-1852,共4页Chinese Journal of Power Sources

摘　　要：针对并联运行Boost拓扑结构,提出相位交错控制策略。电路两相工作在相同的脉冲宽度调制(PWM)模式下,但开关的驱动脉冲不在同一相位上,而是根据占空比的不同有一个合适的相位差,电路控制环路简单,有助于提高电路的可靠性和转换效率。同时提升了电路的动态响应速度,降低了电路输入电流和输出电压的纹波率,提高了电路的输出功率。仿真和实验验证了相位交错控制两相并联运行的可行性和优越性。The phase interleaved control strategy was presented by the parallel Boost topology structure. The switch for two phases was controlled by the PWM mode, and the phases were not worked at the same time when the switch was tumed on or off. The parallel has a proper phase difference according to the circuit duty cycle. The circuit of control loop is simple, thus helps to improve the reliability and conversion efficiency of the circuit. Also, it is possible to improve the dynamic response speed of the circuit and to increase the out energy of the system. In addition, the input current and output voltage ripple rate was reduced. Simulation and experiment results corroborate that the parallel operation and phase interleaved control strategy is effective and feasible.

关 键 词：相位交错 DC—DC变换器 纹波率 

分 类 号：TM41[电气工程—电器]