This article presents an experimental methodology to control the voltage generated from a switched reluctance generator (SRG) using fuzzy logic control. The generated voltage is controlled by varying the demagnetization angle (θoff), maintaining the magnetization angle (θon) fixed. The developed strategy operates on the upper switches of the asymmetric half-bridge converter. The converter topology is used in conjunction with an intermediate freewheeling stage between the steps of magnetization and demagnetization of the phases. The control algorithm was developed in a DSP/FPGA with high processing capacity using LabVIEW graphical platform. Results in open loop and closed loop are presented, subjecting the SRG to variable speeds and load application. For the purpose of performance comparison, a PI compensator has been implemented and tuned for this specific application and the results for both controllers are presented and discussed. For the open-loop tests, the SRG was subjected to variations in the rotor speed, namely, shaft speed varying sinusoidally and triangularly. In these tests, it was observed that the bus voltage suffered great variations. Load variations were also implemented in open loop and, once again, the bus voltage varied significantly. In laboratory tests in closed loop, the SRG was again subjected to variations in sinusoidal and triangular speed and still under load step. In all these experiments, comparisons of results were made between PI controllers and using fuzzy logic control. At the end, it was observed that the imposition of a control loop allowed the bus voltage to be maintained at the preestablished value.

中文翻译：

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应用于6x4 SRG的模糊控制系统的设计与实现

本文介绍了一种使用模糊逻辑控制来控制开关磁阻发电机 (SRG) 产生的电压的实验方法。通过改变退磁角 (θoff) 来控制产生的电压，保持磁化角 (θon) 固定。开发的策略在非对称半桥转换器的上层开关上运行。转换器拓扑与相位的磁化和去磁步骤之间的中间续流阶段结合使用。控制算法是在具有高处理能力的DSP/FPGA中使用LabVIEW图形平台开发的。提供了开环和闭环的结果，使 SRG 承受可变速度和负载应用。出于性能比较的目的，PI 补偿器已针对此特定应用实施和调整，并介绍和讨论了两种控制器的结果。对于开环测试，SRG 受到转子速度变化的影响，即轴速度呈正弦和三角形变化。在这些测试中，观察到母线电压发生了很大的变化。负载变化也在开环中实现，并且总线电压再次发生显着变化。在闭环的实验室测试中，SRG 再次受到正弦和三角形速度变化的影响，并且仍在负载阶跃下。在所有这些实验中，对 PI 控制器和使用模糊逻辑控制的结果进行了比较。最后，观察到控制回路的施加允许总线电压保持在预先设定的值。