基于改进双抛物线的电流跟踪技术控制算法

发布时间：2018-04-17 17:27

本文选题：PWM变换器 + 双抛物线电流控制　；参考：《高电压技术》2017年04期

【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。
[Abstract]:In order to overcome the problem that the parabola reference current loop is not easy to be realized and the detection of the conversion point is not accurate, the current control model of the pulse width modulation (PWM) PWM) converter is proposed.An improved double parabola current control algorithm is proposed. The exact conversion points are calculated by formula derivation. The three algorithms of double parabola and its improved technique are compared by simulation.The results show that the Newton-double parabola current control technique is more accurate than the oblique double parabola current control technique, and its PWM signal period is basically constant, and compared with the conventional double parabola current control, this method simplifies the comparison circuit.The immunity of the transition point is improved, and the control process is easier to realize.The results show that the improved Newtonian double parabola control technology combines the advantages of double parabola and inclined double parabola, and is more feasible and superior.
【作者单位】：军械工程学院车辆与电气工程系;军械工程学院无人机工程系;军械工程学院静电与电磁防护研究所;中国人民解放军66188部队;
【基金】：国家自然科学基金(51407196) 国防科技重点实验室基金(9140C870103120C87028)~~
【分类号】：TM46

【相似文献】