US-Jordan Cooperative Research: Bifurcation and Chaos Theory as Applied To Power Electronic Circuits

0138275 Batarseh描述：该项目支持佛罗里达奥兰多中央佛罗里达大学电气工程和计算机科学学院Issa Batarseh博士与约旦伊尔比德约旦科技大学电气工程系Ahmad Harb博士之间的合作研究项目。 本计画主要研究电力电子电路之分岔与混沌理论。 目前应用于电力电子变换器的动态建模方法大多基于线性涟漪近似（假定变换器的固有频率远低于开关频率）或基于对输出或占空比函数进行时间平均（有效地消除了开关的采样效应）。这些方法无法预测系统在高频下的行为。这些模型的准确性降低的调制频率接近一半的开关频率，因此，他们无法预测发生在这个区域的频率的不稳定性。 这项合作研究计划的目的是探讨分叉理论的应用，以新开发的现代高频直流-直流转换器。该项目将集中在两组电力电子电路：I）并联输入/串联输出两模块升压衍生DC-DC变换器，具有相互耦合的输出滤波电感器，和II）单级功率因数校正（PFC）电路。适用范围：该项目使美国和约旦科学家能够汇集他们互补的专业知识和资源，为分析电力电子转换器系统的行为提供新的方法。 来自UCF的一名美国研究生将参与这个国际合作项目。该项目符合INT的目标，即支持可能产生互利和信息传播的讲习班。 该项目由国际科学和工程办公室以及电气和通信系统司资助。

0138275 BatarsehDescription: This project supports a cooperative research project between Dr. Issa Batarseh, School of Electrical Engineering and Computer Science, University of Central Florida, Orlando, Florida and Dr. Ahmad Harb, Department of Electrical Engineering, Jordan University of Science and Technology in Irbid, Jordan. This project deals with bifurcation and chaos theory for power electronic circuits. Most of today's dynamic modeling methods applied in power electronic converters is based on either linear ripple approximation, assuming that the natural frequencies of the converter are well below the switching frequency, or on time-averaging the output or the duty ratio function, effectively eliminating the sampling effect of the switch. These methods fail to predict the system behavior at high frequencies. The accuracy of these models degrades as the modulation frequency approaches one-half the switching frequency; hence they fail to predict the instability occurring in this region of frequencies. The objective of this joint research project is to investigate the application of bifurcation theory to newly developed modern high frequency dc-dc converters. The project will focus on two groups of power electronic circuits: I) parallel-input/series-output two-module boost-derived DC-DC converter with mutually coupled output filter inductors, and II) Single-stage Power Factor Correction (PFC) circuits. Scope: This project enables the US and Jordanian scientists to pool their complementary expertise and resources in providing a new approach to analyzing the behavior of power electronics converter systems. One US graduate student from UCF will participate in this international collaborative project. The project meets the INT objective in supporting workshops where mutual benefits and dissemination of information is likely to result. This project is funded by the Office of International Science and Engineering and the Division of Electrical and Communications Systems.