Purpose

This paper intent to design, develop, and fabricate a robust cascaded controller based on the dual loop concept i.e. Fuzzy Sliding Mode concept in the inner loop and traditional Proportional Integral controller in the outer loop to reduce the unknown dynamics and disturbances that occur in the DC-DC Converter.

Design/methodology/approach

The proposed Fuzzy sliding mode approach combines the merits of both SMC and Fuzzy logic control. FSMC approach reduces the chattering phenomena that commonly occurs in the sliding mode control and speed up the response of the controller.

Findings

In most of the research work, the inner current loop of cascaded controller was designed by sliding mode control. In this paper FSMC is proposed and its efficacy is confirmed with SMC -PI. In most uncertainties, FSMC-PI produces null maximum peak overshoot and a very less settling time of 0.0005 sec.

Originality/value

The presence of Fuzzy SMC in the inner loop ensure satisfactory response against all uncertainties such as steady state, circuit parameter variations and sudden line and load disturbances.

中文翻译：

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级联内环模糊SMC升压转换器的性能分析

目的

本文旨在设计、开发和制造基于双环概念的鲁棒级联控制器，即内环中的模糊滑模概念和外环中的传统比例积分控制器，以减少直流中发生的未知动态和扰动。 -直流转换器。

设计/方法/方法

所提出的模糊滑模方法结合了 SMC 和模糊逻辑控制的优点。FSMC 方法减少了滑模控制中常见的抖动现象，加快了控制器的响应速度。

发现

在大部分的研究工作中，级联控制器的内部电流环采用滑模控制设计。在本文中，提出了 FSMC，并用 SMC -PI 证实了其功效。在大多数不确定性中，FSMC-PI 产生零最大峰值过冲和非常短的 0.0005 秒的稳定时间。

原创性/价值

内环中模糊 SMC 的存在确保了对所有不确定因素的满意响应，例如稳态、电路参数变化以及突然的线路和负载扰动。