使用基于类型-2模糊逻辑技术的MPPT方法控制光伏系统的多级方位直流-直流增压转换器
Souheyb Mohammed Belhadj1, Bouziane Meliani1, Habib Benbouhenni2
1Laboratory GIDD, Department of Electrical Engineering and Automation, University of Relizane, Relizane, Algeria.
Heliyon
|February 11, 2025
概括
一个新的2型模糊逻辑 (T2FL) 控制器增强了光伏 (PV) 系统的最大功率点跟踪 (MPPT). 这种先进的控制器在变化条件下提高了效率和稳定性,优于传统方法.
科学领域:
- 电气工程 电气工程
- 可再生能源系统可再生能源系统
- 控制系统 控制系统
背景情况:
- 光伏 (PV) 系统需要高效的最大功率点跟踪 (MPPT) 来优化能源提取.
- 高收益直流-直流转换器对于提高低光伏电压至关重要,但传统的MPPT方法在不同的环境条件下面临着精度和稳定性的挑战.
- 1型模糊逻辑控制器 (T1FLC) 提供适应性,但在不确定的环境中缺乏稳定性,而增量导电性 (IC) 算法可以在最大功率点 (MPP) 附近振荡.
研究的目的:
- 引入和评估基于2型模糊逻辑 (T2FL) 的MPPT控制器,用于光伏系统中的高增益三级方位直流直流增压转换器 (TLQDC-DCBC).
- 解决现有的MPPT技术的局限性,特别是不确定的环境条件下的振荡和精度降低.
- 为了提高MPPT控制器的稳定性,精度和适应性,用于在动态辐射和温度水平下运行的光伏系统.
主要方法:
- 开发一种类型2模糊逻辑控制器 (T2FLC),采用类型减小和间隔类型-2模糊逻辑原理.
- 将MPPT-T2FLC与高收益的三级方位直流直流增压转换器 (TLQDC-DCBC) 集成.
- 在不同的环境条件下通过MATLAB模拟进行验证 (辐射:700-1000W/m2,温度:25-45°C).
主要成果:
- 拟议的MPPT-T2FLC在各种操作条件下实现了超过99.5%的持续跟踪效率.
- 对比分析表明,T2FLC与T1FLC相比提高了5.2%的跟踪效率,与IC相比提高了7.5%.
- 与传统方法相比,T2FLC表现出更快的收,减少了稳定状态误差,并提高了稳定性.
结论:
- 与T1FLC和IC方法相比,MPPT-T2FLC在光伏系统中优化能源提取方面提供了卓越的性能.
- 控制器的强度和适应性使其非常适合在动态和不确定的环境条件下运行的光伏系统.
- 拟议的T2FLC显著提高了光伏发电的可靠性和效率.
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