杨超;许海平;袁志宝;许志强;

• 1:中国科学院电力电子与电气驱动重点实验室(中国科学院电工研究所)
• 2:中国科学院大学
• 3:北京中科绿能科技有限公司

摘要(Abstract)：

双向隔离型DC-DC变换器是电力电子变压器(power electronic transformer,PET)的一个重要环节。文章针对混合三电平双向DC-DC的结构特点提出一种新的基于脉冲宽度调制(pulsewidthmodulation,PWM)加移相的控制方法(PWMphaseshift,PPS),该方法能够减少控制变量,简化系统控制。在此基础上,通过分析PPS控制方法下系统工作模态的等效电路模型,建立系统的非线性大信号模型。通过对非线性系统反馈线性化,推导出系统状态反馈表达式,将系统的耦合控制变量进行解耦,得到系统的控制规则。最后搭建了实验平台,通过实验结果证明了该控制方法的正确性和有效性。

关键词(KeyWords)： 电力电子变压器;混合三电平双向DC-DC变换器;非线性控制;状态反馈线性化

Abstract:

Keywords:

基金项目(Foundation): 北京市科学技术委员会重点资助项目(D171100005317003)~~

作者(Author): 杨超;许海平;袁志宝;许志强;

Email:

DOI: 10.13335/j.1000-3673.pst.2018.2909

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