← 返回

一种具有未知负载电导的电力变换器无传感器控制状态观测器

A State Observer for Sensorless Control of Power Converters With Unknown Load Conductance

语言:

中文摘要

本文研究了具有未知负载电导的电力变换器无传感器控制问题。提出了一种基于降阶广义参数估计的观测器(GPEBO),用于重构不可测状态并估计系统的未知负载电导。该观测器具备有限时间收敛(FTC)等优良特性。

English Abstract

In this article, the sensorless control problem of a large class of power converters with unknown load conductance is investigated. A reduced-order generalized parameter estimation-based observer (GPEBO) is presented to reconstruct the unmeasurable states and estimate the unknown load conductance of the system. Three nice features of this observer are as follows: finite-time convergence (FTC) is g...
S

SunView 深度解读

该技术对阳光电源的核心产品线(如组串式光伏逆变器、PowerTitan/PowerStack储能变流器)具有极高的应用价值。在无传感器控制架构下,通过GPEBO观测器实时估计负载电导,可有效降低电流传感器成本并提升系统鲁棒性。特别是在离网运行或微网应用场景中,该算法能显著增强系统在负载突变时的动态响应能力和稳定性。建议研发团队将其集成至iSolarCloud智能运维平台或嵌入式控制固件中,以优化变流器在复杂电网环境下的控制精度,提升产品竞争力。