对于具有任意数量的相位的电流源逆变器的脉冲宽度调制
Predrag Pejović1, Takanobu Ohno2, Uroš Borović3
1School of Electrical Engineering, University of Belgrade, Belgrade, Serbia.
Scientific reports
|March 14, 2025
概括
一种新的脉冲宽度调制 (PWM) 方法简化了电流源逆变器 (CSI) 的控制,避免了复杂的空间向量调制 (SVM) 计算. 这种方法为多阶段的CSI提供了一个通用的解决方案,通过模拟和实验验证.
科学领域:
- 电气工程 电气工程
- 电力电子 电力电子 电力电子
- 控制系统 控制系统
背景情况:
- 传统的电流源逆变器 (CSI) 调制技术往往是从电压源逆变器 (VSI) 进行调整的.
- 现有的方法,如空间向量调制 (SVM) 和脉冲宽度调制 (PWM),由于其独特的开关要求,在应用到CSI时存在局限性.
- VSI允许每相调制,不同于CSI,需要考虑整体开关.
研究的目的:
- 提出一种专门为电流源逆变器 (CSI) 设计的新PWM方法.
- 开发一种模块化技术,绕过SVM的复杂性,例如部门识别.
- 为任何阶段数的CSI提供普遍适用的调制策略.
主要方法:
- 针对CSI量身定制的PWM方法是使用线性代数来计算平均工作周期的.
- 一个专门的多门脉冲宽度调节器是为CSI设计的,用于从这些工作周期中生成门信号.
- 拟议的方法避免了部门识别和其他SVM特定要求.
主要成果:
- 为CSI提出的PWM方法通过模拟和广泛的实验结果得到了验证.
- 该技术成功地为CSI生成门信号,而不需要SVM的部门识别.
- 该方法被证明是一般的,适用于具有不同阶段数量的CSI.
结论:
- 开发的PWM技术为电流源逆变器提供了简化和有效的调制策略.
- 该方法提供了传统VSI衍生技术的替代方案,解决了CSI特定的挑战.
- 该方法适用于广泛的CSI应用,无论阶段数量如何.
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