一种新的自适应MPPT技术,使用改进的INC算法,支持模糊自调节控制器,用于连接到电网的光伏系统
Nagwa F Ibrahim1, Mohamed Metwally Mahmoud2, Hashim Alnami3
1Electrical Department, Faculty of Technology and Education, Suez University, Suez, Egypt.
PloS one
|November 3, 2023
概括
本研究介绍了一种适应性最大功率点跟踪 (MPPT) 技术,INC-FST,用于光伏系统 (PVS). 这种新的方法在不同的环境条件下提高了效率和功率输出.
科学领域:
- 可再生能源系统可再生能源系统
- 电气工程 电气工程
- 控制系统 控制系统
背景情况:
- 光伏系统 (PVS) 对于捕获太阳能至关重要,但由于环境波动,在最大限度地提高功率输出方面面临挑战.
- 最大功率点跟踪 (MPPT) 技术对于优化PVS性能至关重要,增量导电 (INC) 是一种公认的方法.
- 像INC这样的传统MPPT方法适应动态环境条件仍然是联网PVS的一个重大挑战.
研究的目的:
- 引入一项创新的自适应MPPT技术,INC-FST,用于连接到电网的光伏系统.
- 通过整合一个通过模糊自调控制器更新的PID控制器来增强经典的INC方法.
- 为了动态调节增强转换器信号,以实现最佳的直流到电网功率传输.
主要方法:
- 开发了一个名为INC-FST的自适应MPPT算法,将INC与模糊的自调PID控制器结合起来.
- 实现了INC-FST以动态调节联网PVS中的增压转换器.
- 在不同气候场景下对传统MPPT方法 (INC,P&O,INC-FL) 进行了比较评估.
主要成果:
- 在三个不同的气候场景中,INC-FST算法实现了99.80%,99.76%和99.73%的卓越效率.
- 在控制指数中表现出更高的精度,包括尽量减少超越和减少上升时间.
- 与传统方法相比,在最大限度地提高光伏系统功率输出方面取得了显著的改进.
结论:
- 拟议的INC-FST自适应MPPT技术为优化联网PVS性能提供了强大的解决方案.
- INC-FST有效地应对波动的环境条件的挑战,导致更高的能源产量.
- 这种先进的MPPT战略为太阳能能源转换提供了更精确,更有效的方法.
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