无电感电流传感器DC/DC变换器各种状态空间控制方法的性能评价

D. Neacşu
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引用次数: 1

摘要

本文比较了在没有电流传感器的情况下实现DC/DC升压转换器状态空间控制的不同解决方案。控制律来源于只考虑两项的思想:一个“传统PI”软件控制模块和一个“补偿”软件模块,表示为4项乘积和(向量点积)。每个产品都来自一对离线预计算常数和操作测量,并且需要电感电流信息。在这种软件安排下,讨论了几种电流估计选项,并与具有电流传感器的系统进行了广泛的MATLAB性能评估。一路上解释了许多亲密的设计选择。这导致了低成本的解决方案,并具有所有基于状态空间的控制优势。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Performance Evaluation of Various State-Space based Control Methods for DC/DC Converters without Inductor Current Sensor
This paper compares different solutions for implementation of the State-Space based Control of a DC/DC boost converter, without a current sensor. The control law is derived from the idea of considering two terms only: a "conventional PI" software control module and a "compensation" software module expressed as a 4-term sum-of-products (vector-dot-product). Each product comes from a pair of an offline pre-calculated constant and an operational measure, and would require inductor current information. Several options for current's estimation are discussed under this software arrangement and performance is extensively evaluated with MATLAB in comparison with a system having a current sensor. Numerous intimate design choices are explained along the way. This leads to a low-cost solution, with all the State-Space based based control benefits.
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