摘要
为解决电动汽车V2V转换器的稳定性问题,提出一种四开关Buck-Boost转换器新型三模式的控制策略。首先通过四开关Buck-Boost转换器的电压转换比与占空比之间的关系,提出一种三模式的控制策略,并且为解决四开关Buck-Boost转换器在模式切换时输出电压失调的问题,采用扩展卡尔曼滤波算法,估计切换点的位置,重新规划转换器工作状态。采用Simulink仿真并搭建了样机。仿真和实验结果验证了所提控制算法的准确性和优越性。
To solve the stability problem of V2V converter for electric vehicles,a novel three-mode control strategy for four-switch Buck-Boost converter is proposed.Firstly,the three-mode control strategy is proposed founded on the relationship between the voltage conversion ratio and the duty ratio of the four-switch Buck-Boost converter.Meanwhile,the extended Kalman filter algorithm is utilized to estimate the position of the switch-point and re-plan the working state of the converter,thus solving the problem of output voltage transition during mode switching.The Simulink is used to simulate and build the prototype and the following simulation and experimental results demonstrat the accuracy and superiority of the proposed control algorithm.
作者
江友华
王金超
赵方平
曹以龙
JIANG You-hua;WANG Jin-chao;ZHAO Fang-ping;CAO Yi-long(Shanghai University of Electric Power,Shanghai 200090,China)
出处
《电力电子技术》
CSCD
北大核心
2020年第3期100-103,共4页
Power Electronics
基金
上海市地方能力建设项目(14110500900,1511-0500900)。
