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清华大学电机工程与应用电子技术系,北京市 100084
林泽川(1996—),男,博士研究生,主要研究方向:波浪发电技术、开关磁阻电机控制。E-mail:linzc19@mails.tsinghua.edu.cn
黄宣睿(1991—),男,博士,主要研究方向:波浪发电技术、永磁电机控制、开关磁阻电机。E-mail:hxr503@gmail.com
肖曦(1973—),男,通信作者,教授,主要研究方向:永磁电机控制、电力电子技术、可再生能源技术。E-mail:xiao_xi@tsinghua.edu.cn
收稿:2023-07-31,
修回:2024-03-07,
网络出版:2024-06-04,
纸质出版:2024-11-25
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林泽川,黄宣睿,肖曦.阵列式直驱波浪发电系统集中式模型预测控制方法[J].电力系统自动化,2024,48(22):191-198.
LIN Zechuan,HUANG Xuanrui,XIAO Xi.Centralized Model Predictive Control Method for Arrays of Direct-drive Wave Energy Converters[J].Automation of Electric Power Systems,2024,48(22):191-198.
林泽川,黄宣睿,肖曦.阵列式直驱波浪发电系统集中式模型预测控制方法[J].电力系统自动化,2024,48(22):191-198. DOI: 10.7500/AEPS20230731010.
LIN Zechuan,HUANG Xuanrui,XIAO Xi.Centralized Model Predictive Control Method for Arrays of Direct-drive Wave Energy Converters[J].Automation of Electric Power Systems,2024,48(22):191-198. DOI: 10.7500/AEPS20230731010.
将多个波浪能发电装置组成阵列是大规模开发波浪能的发展趋势。对于阵列式直驱波浪发电系统
采取合适的能量优化控制方法能显著提升波浪能捕获效率。然而,由于阵列式系统存在浮子间的相互辐射作用,已有的集中式模型预测控制(MPC)面临在线计算量大、难以工程应用的困难,而将各浮子视作独立系统的分布式MPC则存在能量捕获效率的损失。对此,文中提出一种改进的集中式MPC方法,将优化区间与约束区间进行解耦,可在保障系统整体能量捕获效率的同时,大幅减少计算开销,提升系统的实时控制性能。通过仿真研究分析了约束区间解耦方法的性能,并在多种波浪工况条件下验证了所提出方法的有效性。
To further exploit wave energy on a large scale
it is an important trend to form multiple wave energy converters (WECs) into arrays. For arrays of direct-drive WECs
adopting an appropriate energy optimization control strategy can significantly improve their wave energy capture efficiency. However
due to the radiation coupling effects between bodies in arrays
existing centralized model predictive control (MPC) faces difficulties in online computation burden and engineering applications
while distributed MPC that regards each body as an independent system inevitably suffers from energy capture efficiency losses. In this regard
an improved centralized MPC method is proposed
in which the optimization horizon and constraint horizon are decoupled to significantly reduce the computation burden and improve the real-time control performance of the system while ensuring the overall energy capture efficiency. The performance of the constraint horizon decoupling method is analyzed through numerical simulation
and the effectiveness of the proposed method is verified under multiple wave spectra and wave directions.
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