摘要
针对LCL型IPT系统的高阶非线性特性,采用广义状态空间平均法(GSSA)基于频域分解的建模思想,将时域非线性的IPT系统模型通过傅里叶级数分解描述成了频域线性的广义状态空间模型,对GSSA模型求解后,再将频域信号还原得到时域原始信号。给出了系统参数的配置方法,配置了满足系统谐振条件的仿真参数,利用系统的GSSA模型进行的仿真结果与在SIMULINK中搭建的拓扑模型的仿真结果一致。在LCL型IPT系统GSSA模型的基础上,得出了系统传输功率和效率的表达式,分析了负载与互感变化对系统性能的影响。
To deal with the high level and nonlinear characteristic of LCL type IPT system, the generalized state space averaging (GSSA) method was utilized to transform the time domain nonlinear system into frequency domain linear system. Time domain original signal can be obtained by reverting the frequency domain signal after solving the GSSA model. Parameter configuration method was provided and base on which the simulation parameter was configured. The Simulation result of GSSA model was consistent with the results of SIMULINK topology model. Furthermore, system’s power transfer capability and efficiency computing method is presented. The influence of system performance result from load variation and mutual inductance variation is analyzed.
出处
《科技通报》
北大核心
2015年第11期215-219,224,共6页
Bulletin of Science and Technology
关键词
LCL谐振
感应电能传输
广义状态空间
LCL resonant
inductive power transfer
generalized state space
