基于改进双抛物线的电流跟踪技术控制算法  

Current Tracking Control Technology Based on Improved Dual Parabola Algorithm

作　　者：安巧静[1] 朱长青[1] 赵月飞[2] 杨清熙[3] 严雪飞[3] 董建勇[4] 

机构地区：[1]军械工程学院车辆与电气工程系 [2]军械工程学院无人机工程系 [3]军械工程学院静电与电磁防护研究所 [4]中国人民解放军66188部队

出　　处：《高电压技术》2017年第4期1302-1310,共9页High Voltage Engineering

基　　金：国家自然科学基金(51407196);国防科技重点实验室基金(9140C870103120C87028)~~

摘　　要：为了克服抛物线法电流控制技术存在的抛物线基准电流环不易实现、转换点检测不精确的问题,基于脉冲宽度调制(PWM)变换器的电流控制模型,提出了一种改进的双抛物线电流控制算法,通过公式推导计算精确转换点,并通过仿真对比了双抛物线及其改进技术的3种算法。结果表明:牛顿-双抛物线电流控制技术较斜线双抛物线电流控制更精确,其PWM信号周期基本恒定;且与一般的双抛物线电流控制相比,该方法简化了比较电路,提高了转换点的抗扰性,控制过程更易实现。研究结果表明改进的牛顿双抛物线控制技术结合了双抛物线和斜线双抛物线两者优点,更具可行性和优越性。In order to overcome the difficulties in realizing the parabola benchmark current loop and the breaking point inaccuracy, we proposed an improved parabolic current control algorithm based on the current control pulse width modu- lation（PWM） converter model. Moreover, we compared three methods of dual parabolic current control and the improved algorithm with accurate breaking point through calculation of the formulas and simulation. The results show that the Newton - dual parabolic current control technique is more precise than oblique linedual parabolic current control and PWM signal cycle is constant basically; And the technique makes the comparison circuit simplifier and increases the distance of the breaking point.The control process is easier to implement compared with the general double parabolic cur-rent control. Research results show that the improved Newton double parabolic control technology is a combination the advantages of dual parabolic current control and oblique line-dual parabola current control, which is feasible and superior.

关 键 词：PWM变换器 双抛物线电流控制 斜线双抛物线电流控制 牛顿-双抛物线电流控制 实时跟踪 开关周期 

分 类 号：TM46[电气工程—电器]