摘要
首先运用能量守恒原理对隔离半桥电路进行理想化转换,再依据开关网络平均模型法,建立隔离半桥电路的交流小信号数学模型,给出系统的开环传递函数。在此基础上,分析数学模型的幅频及相频特性,并进行相应的闭环参数补偿以及系统校正。经仿真与实验,结果进一步验证理论建模的有效性和补偿参数的合理性。
Firstly,the energy conservation theory is used to idealize the isolated half bridge circuit.Then the AC small signal mathematical model of the isolated half bridge circuit is established according to the average model method of switching network,and the open-loop transfer function of the system is obtained.On the basis,the amplitude frequency and phase frequency characteristics of the mathematical model are analyzed,and the corresponding closed-loop parameter compensation and system correction are carried out.The simulation and experimental results further verify the validity of the theoretical modeling and the rationality of the compensation parameters.
作者
金宁德
王海欣
黄海宏
JIN Ningde;WANG Haixin;HUANG Haihong(School of Electrical Engineering and Automation,Hefei University of Technology,Hefei 230009,China)
出处
《电器与能效管理技术》
2022年第3期45-50,共6页
Electrical & Energy Management Technology
基金
高等学校学科创新引智计划资助(BP0719039)。
关键词
隔离半桥电路
开关网络平均模型法
小信号数学模型
参数补偿
isolated half bridge circuit
switching network averaging model method
small signal mathematical model
parameter compensation
