基于最佳工作周期有限集模型预测推力控制的线性感应电机的性能提升
Mahmoud F Elmorshedy1,2, Dhafer Almakhles1, Said M Allam2
1Renewable Energy Lab., College of Engineering, Prince Sultan University, Riyadh, Saudi Arabia.
Heliyon
|July 29, 2024
概括
有限集模型预测推力控制 (FS-MPTC) 通过优化电压向量的工作周期来提高线性感应电机 (LIM) 的效率. 这种先进的控制策略提高了LIM驱动系统的推力性能和系统稳定性.
科学领域:
- 电气工程 电气工程
- 控制系统 控制系统
- 电子机械系统 电子机械系统
背景情况:
- 线性感应机 (LIM) 对于线性地铁等应用至关重要,因为它们具有优势.
- 在更高的速度 (终端效应) 和正常力波动下,LIMs会受到推力降低的影响,影响效率和稳定性.
- 现有的控制方法往往难以缓解这些性能下降.
研究的目的:
- 为LIM驱动系统提出一种新的有限集模型预测推力控制 (FS-MPTC) 策略.
- 通过解决取决于速度的推力减小和正常力变化来提高运行效率和系统稳定性.
- 为了优化电压向量的工作周期,以提高LIM性能.
主要方法:
- 开发了一个FS-MPTC策略,以优化主动电压和零电压向量工作周期.
- 纳入了死跳概念和电磁推力衍生值用于工作周期计算.
- 在预测阶段使用了两期成本函数,考虑到推力和流量连接错误.
- 使用来自日本12000线性感应机的参数验证了方法.
主要成果:
- 与固定工作周期方法相比,具有最佳工作周期的拟议FS-MPTC表现出优异的性能.
- 观察到有效地减轻了取决于速度的推力减小和改善了系统稳定性.
- 实现了LIM驱动系统的更高的操作效率.
结论:
- FS-MPTC为改善LIM性能提供了强大而有效的解决方案.
- 优化电压矢量工作周期是提高LIM应用程序效率和稳定性的关键.
- 这种控制策略为基于LIM的驱动系统提供了有希望的进步,特别是在线性地铁等苛刻的应用中.
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