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考虑死区效应和空间矢量调制类型的电压源逆变器(VSI)及电压源变换器(VSC)小信号模型

Small-Signal Model of Voltage Source Inverter (VSI) and Voltage Source Converter (VSC) Considering the DeadTime Effect and Space Vector Modulation Types

语言:

中文摘要

本文提出了一种改进的电压源逆变器(VSI)和变换器(VSC)小信号模型,该模型捕捉了以往文献中未充分考虑的死区效应和调制非线性。研究重点在于对这些非线性现象进行预测建模,而非仅仅局限于开关模型中的补偿方法,为电力电子系统的精确分析提供了理论基础。

English Abstract

This paper presents a modified small-signal model of a voltage source inverter (VSI) and a voltage source converter (VSC) that captures model nonlinearities such as deadtime and modulation effects that were not presented in the literature. Previous research has concentrated on developing compensation methods for these types of phenomena in a switching model, but very little on predicting them. In ...
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SunView 深度解读

该研究对阳光电源的核心产品线(如组串式逆变器、集中式逆变器及PowerTitan储能变流器)具有重要的工程指导意义。死区效应和调制非线性直接影响逆变器在弱电网下的谐波性能及控制稳定性。通过引入该改进的小信号模型,研发团队可更精确地优化控制算法,提升并网电流质量,并增强系统在复杂电网环境下的鲁棒性。建议将该建模方法集成至iSolarCloud的仿真分析模块中,以优化逆变器在不同调制策略下的动态响应,进一步提升产品在电网适应性方面的技术竞争力。