一个由五相电压逆变器供电的双双供电发电机系统
Krzysztof Blecharz1, Dmytro Kondratenko2
1Faculty of Electrical and Control Engineering, Gdansk University of Technology, Gdansk, 80-233, Poland. krzysztof.blecharz@pg.edu.pl.
Scientific reports
|September 29, 2025
概括
这项研究介绍了一种新的五相逆变器系统,用于双双供电的感应发电机 (DFIG). 空间向量脉冲宽度调制 (SVPWM) 技术可以独立控制两个发电机,实现高质量的输出功率.
科学领域:
- 电气工程 电气工程
- 电力电子 电力电子 电力电子
- 可再生能源系统可再生能源系统
背景情况:
- 多发动机驱动系统在工业中很常见,但发电机系统缺乏专门的解决方案.
- 现有的双三相发电机系统通常使用单独的逆变器.
- 双输电感应发电机 (DFIG) 在风力轮机等应用中广泛使用.
研究的目的:
- 提出并验证一种新的系统配置,用于使用单个五相逆变器为两个三相DFIG供电.
- 适应和应用空间向量脉冲宽度调制 (SVPWM) 技术,以独立控制两个DFIG.
- 为了证明产生独立电压的可行性,每个发电机的频率和幅度不同.
主要方法:
- 使用单个五相电压源逆变器 (VSI) 的系统配置,具有共同的脚,供应两个三相DFIG.
- 实施专门的SVPWM技术,以独立控制输出电压.
- 使用面向现场的控制和2kW DFIGs的实验测试进行验证.
主要成果:
- 两个DFIG的独立控制成功实现,证明了频率和振幅的变化能力.
- 该SVPWM战略有效地通过低压波器产生高质量的能源.
- 在所有测试案例中,发电机电压的总波扭曲 (THD) 值保持在5%以下.
结论:
- 拟议的系统为双发电机配置提供了可行的替代方案,使单个逆变器能够独立控制发电机.
- 适应的SVPWM技术有效地为每个DFIG产生精确,高质量的电力.
- 这种解决方案在需要具有独立运行特征的双发电机组件的系统中具有潜在的应用.
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