Enhanced-accuracy augmented state-space approach to steady-state modeling of resonant converters
Enhanced-accuracy augmented state-space approach to steady-state modeling of resonant converters
复制标题
谐振转换器稳态建模的高精度增强状态空间方法
作者：
Ashish Kumar;Jie Lu;K. Afridi
本文提出了一种基于增强增广状态空间技术的高精度谐振变换器建模方法。所提出的方法包括一个优化的数值算法，预测的稳态转换器波形的准确性和计算效率。建模精度进一步提高，通过列入整流器的非理想。这种方法特别适合于具有高阶谐振网络的谐振转换器，特别是具有多个逆变器和/或整流器的谐振转换器，这些谐振转换器不能使用现有方法容易地进行分析。最近提出的阻抗控制网络（ICN）转换器，其中包括一个高阶谐振网络和多个移相逆变器的建模方法的有效性进行了验证。建模和实验波形之间存在良好的协议。
This paper presents a highly accurate method to model resonant converters based on an enhanced augmented state-space technique. The proposed approach includes an optimized numerical algorithm that predicts the steady-state converter waveforms with accuracy and computational efficiency. Modeling accuracy is further enhanced through the inclusion of rectifier non-idealities. This approach is particularly well-suited to resonant converters with high-order resonant networks, especially those with multiple inverters and/or rectifiers, which cannot be easily analyzed using existing approaches. The effectiveness of the modeling approach is validated using the recently proposed impedance control network (ICN) converter, which comprises a high-order resonant network and multiple phase-shifted inverters. Excellent agreement is shown to exist between the modeled and experimental waveforms.