SPWM逆变器用推挽变压器漏感的时空属性

发布时间：2018-10-25 12:44

【摘要】：带多线圈电子变压器的功率变换器具有可电隔离、开关器件少等优点,应用广泛。但有变压器周边开关器件的状态会改变线圈间的能量流向和线圈间的磁链,高速开关会导致磁链的突变,漏感磁能释放将恶化器件的开关环境等问题。然而表达漏感时空属性的数学模型尚鲜有报道,常用器件仿真软件中也没有漏感时空属性的表达形式。该文从推挽变压器线圈间的能量流向入手强调漏感的时空属性,分析了漏磁通的作用时间和涉及空间,讨论了正弦脉宽调制推挽逆变器建模方法,并从子系统开始介绍了基于建模的仿真构成,达到了数学分析、仿真和实验结果基本一致的效果,可为研究电子变压器外特性、改进吸收电路设计和构成含多线圈电子变压器类功率变换器的模型控制系统提供参考。
[Abstract]:The power converter with multi-coil electronic transformer is widely used because of its advantages of electrically isolating and few switching devices. However, the state of transformer peripheral switching devices will change the energy flow between coils and the flux chain between coils. High-speed switches will lead to flux chain mutation, leakage inductance release will worsen the switching environment of the devices, and so on. However, there are few reports on the mathematical model to express the space-time attributes of leakage inductance, and there is no expression form of space-time attributes of leakage inductance in the common device simulation software. In this paper, the space-time property of leakage inductance is emphasized from the energy flow direction between push-pull transformer coils, the action time and space of leakage flux are analyzed, and the modeling method of sinusoidal pulse-width modulation push-pull inverter is discussed. The simulation structure based on modeling is introduced from the subsystem, and the results of mathematical analysis, simulation and experiment are basically consistent, which can be used to study the external characteristics of electronic transformer. The design of improved absorption circuit and the model control system with multi-coil electronic transformer power converter are provided.
【作者单位】：南昌航空大学;
【基金】：国家自然科学基金项目(51167014,50967003,50467003)~~
【分类号】：TM41;TM464

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