Novel Control Method for Dynamic Voltage Regulator

Control strategy affects directly the working performances of dynamic voltage regulator (DVR). One-cycle control is an effective nonlinear signal modulation control method. In this paper, a new one-cycle control scheme for DVR was proposed in single phase supply system. On the basis of principle analysis, the corresponding one-cycle control model for DVR was built up, which is characterized by simple control circuits, good control performance, and high control precision. As an example, a control model for s...     

一种新型平顶脉冲磁场产生电路

平顶强磁场可广泛的应用于医疗,军工和基础科学实验中。本文提出了一种基于电容器的新型拓扑电路来实现平顶磁场。该电路由多个电容器并联供电,在放电过程中,依次导通,具有脉宽可调、下降沿快等优点。本文分析了该电路的工作原理,并对由于放电过程中磁体电阻变化难以得到准确解析式,提出了一种新的解决办法,并用遗传算法对放电参数进行了优化。