强大的分数顺序自适应级联策略,以减轻可再生能源热混合系统的负载频率偏差
Youssef M Abdel Halim1, Othman A M Omar2, Mahmoud A Attia3
1Electrical Power and Machines Department, Faculty of Engineering, Ain Shams University, Cairo, 11517, Egypt.
Scientific reports
|October 9, 2025
概括
一个新的控制策略通过减少结算时间和混合可再生能源系统的下拉杆来显著提高电力系统的频率稳定性. 这提高了可变可再生能源的电网可靠性.
科学领域:
- 电气工程 电气工程
- 控制系统 控制系统
- 可再生能源系统可再生能源系统
背景情况:
- 太阳能和风能等可再生能源 (RES) 的日益集成减少了系统惯性,给电网频率稳定带来了挑战.
- 再生能源的可变性和间歇性,加上电力电子接口,需要先进的电网集成控制策略.
- 传统的同步发电机正在被可再生能源补充,改变了电力系统的动态特性.
研究的目的:
- 提出一个强大的级联控制策略,以减轻双区域混合动力系统中的负载频率偏差.
- 提高动态性能和电力系统的稳定性,其中可再生能源占有很大份额.
- 开发一个有效处理非线性,可再生变量和参数不确定性的控制器.
主要方法:
- 实施一个级联控制策略,将一个分数顺序自适应PID (FOAPID) 控制器与一个针对和搜索优化的PIDA (HS-PIDA) 集成.
- 建模一个结合太阳能光伏,风力轮机和传统热单元的混合动力系统,以捕捉系统动态.
- 进行六个案例研究,以评估不同情景下的控制器性能,包括负载变化,可再生间歇性和参数变化.
主要成果:
- 拟议的FOAPID-HS-PIDA控制器将频率偏差的沉降时间缩短到3.1秒,显著优于现有方法 (14-18秒).
- 在频率偏差下降了80%以上,在其他控制器失败的情况下,消除了稳定状态错误.
- 通过错误指数证实了优越性,显示出高达99%的平方错误总和 (SSE) 和97%的根平均平方错误 (RMSE) 的减少.
结论:
- 提出的强大的级联控制策略有效地提高了高透率的混合动力电力系统的频率稳定性.
- 与各种基准控制器相比,FOAPID-HS-PIDA控制器表现出优越的动态性能,稳定性和更快的融合.
- 这种先进的控制方法为管理频率偏差和提高现代电力系统的电网可靠性提供了有希望的解决方案.
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