三级T型转换器的高性能有限时间自适应控制策略
Cheng Fu1, Chenghui Zhang1, Guanguan Zhang1
1School of Control Science and Engineering, Shandong University, Jinan, 250061, China.
ISA transactions
|May 19, 2024
概括
一个改进的有限时间控制 (IFTC) 策略增强了分布式能源的三级T型转换器. 这种控制方法提高了动态性能和稳定性,以实现高效的电网互动.
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:
- 三级T型转换器是连接分布式能源 (DER) 与电网的关键接口.
- 高效的转换器操作依赖于强大的控制策略,提高动态性能和系统稳定性.
- 现有的控制方法在处理干扰和实现精确的电流跟踪方面可能面临挑战.
研究的目的:
- 为三级T型转换器引入改进的有限时间控制 (IFTC) 策略.
- 为了提高这些转换器的动态性能和抗干扰能力.
- 确保DER与公共电网之间的有效和可靠的互动.
主要方法:
- 实现双循环控制结构,用于直流连接电压和电网电流调节.
- 在电压循环中利用有限时间自适应控制器,在没有电流传感器的情况下管理负载干扰.
- 在当前跟踪循环中集成有限时间控制器和命令过器,以实现快速准确的当前控制,避免衍生计算.
主要成果:
- 与传统方法相比,拟议的IFTC战略显示出优越的动态性能.
- 控制器表现出强大的抗外部干扰的稳定性,确保转换器稳定运行.
- 实验验证证证实了IFTC战略在实际应用中的有效性.
结论:
- IFTC战略为提高三级T型转换器性能提供了一个有希望的解决方案.
- 这种控制方法促进了分布式能源更有效,更可靠地融入电网.
- 无传感器的电压控制和精确的电流跟踪功能使IFTC策略非常适用.
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