惯性波能转换器和液压功率起飞单元的建模,分析和控制
Han Jia1, Zhongcai Pei1, Zhiyong Tang2
1School of Automation Science and Electrical Engineering, Beihang University, Beijing, 100191, China.
Scientific reports
|March 4, 2025
概括
本研究介绍了使用陀螺仪和液压系统的波能转换器 (WEC). 一种自适应层次模型预测控制 (AHMPC) 方法显著提高了功率输出稳定性和效率.
科学领域:
- 海洋工程 海洋工程
- 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:
- 波浪能量转换 (WEC) 是一个有前途的可再生能源.
- 将液压动力起动系统 (PTO) 与WEC集成,在功率输出静止性方面提出了挑战.
- 现有的WEC控制方法可能是计算密集的,可能无法完全优化能量捕获.
研究的目的:
- 为了研究一个新的WEC设计,其中包括一个惯性陀螺仪和一个液压PTO.
- 开发和实施自适应层次模型预测控制 (AHMPC) 战略,以提高WEC的性能.
- 为优化WEC系统利用和控制提供科学和数学基础.
主要方法:
- 一个WEC系统的设计和结构分析,其中包括浮体,惯性陀螺仪和液压PTO.
- 建立数学模型,用于从波到液压PTO的能量转换和传输.
- 数字模拟用于调查关键变量对系统性能的影响.
- 实施AHMPC战略,以实时控制和优化输出功率.
主要成果:
- 拟议的WEC设计有效地将波浪能量转化为液压能量.
- 液压PTO系统中的蓄电器改善了输出功率的静止性.
- 与传统的MPC相比,AHMPC方法将计算时间减少了3倍,能量波动幅度减少了96%.
- 通过使用波浪预测信息,AHMPC使液压电机发生器能够在满足约束的同时以所需的速度运行.
结论:
- 带有液压PTO的陀螺WEC为波浪能量转换提供了一种可行的方法.
- 该AHMPC控制策略显著提高了WEC系统的效率,稳定性和实时控制精度.
- 这项研究为优化WEC设计和控制以实现实际应用提供了有价值的见解.
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