Sliding Mode Control of a Switched Reluctance Motor Drive with Four-Switch Bi-Directional DC-DC Converter for Torque Ripple Minimization

2020 International Conference on Smart Energy Systems and Technologies (SEST) Pub Date : 2020-09-01 DOI:10.1109/SEST48500.2020.9203523

Ertugrul Ates, B. Tekgun, G. Ablay

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引用次数: 1

Abstract

In this paper, a method to drive switched reluctance motors (SRM) with a modular four-switch bidirectional DC-DC converter and an H-bridge is proposed. The DC-DC converter operates as a buck or a boost converter with constant frequency to control each phase current while the H-bridge inverter switches only twice in a period to adjust the polarity of the phase voltage. Sliding mode control is designed to have fast and robust current control in the DC-DC converter. The sliding surface equation which is derived for all operation modes including buck and boost modes in motoring and regenerating conditions is defined with the estimated inductor current. The proposed drive system eliminates the bulk DC-capacitors and allows one to adjust the bus voltage individually for all phases. Moreover, the proposed system topology works with only one high-frequency switching device in the DC-DC conversion stage rather than two in conventional drives which provides a simpler current control and reduced switching losses.

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基于四开关双向DC-DC变换器的开关磁阻电机驱动滑模控制以减小转矩脉动

本文提出了一种采用模块化四开关双向DC-DC变换器和h桥驱动开关磁阻电机的方法。DC-DC变换器作为恒频降压或升压变换器来控制每个相电流，而h桥逆变器在一个周期内只开关两次以调节相电压的极性。滑模控制在DC-DC变换器中具有快速和鲁棒的电流控制。用估计的电感电流定义了在电机和再生条件下所有工作模式(包括降压模式和升压模式)的滑动面方程。所提出的驱动系统消除了大量的直流电容器，并允许一个调整总线电压单独为所有阶段。此外，所提出的系统拓扑结构在DC-DC转换阶段仅使用一个高频开关器件，而不是传统驱动器中的两个，从而提供更简单的电流控制并降低开关损耗。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2020 International Conference on Smart Energy Systems and Technologies (SEST)

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