基于平均功率估算的直驱海浪发电最大功率点跟踪控制方法

HUANG Xuanrui

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基于平均功率估算的直驱海浪发电最大功率点跟踪控制方法

更新时间：2025-08-13

- 基于平均功率估算的直驱海浪发电最大功率点跟踪控制方法
- Automation of Electric Power Systems Vol. 40, Issue 14, Pages: 51-57(2016)
- 作者机构：
  
  清华大学电机工程与应用电子技术系,北京市,100084
- 作者简介：
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- Published：2016
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HUANG Xuanrui. [J]. Automation of electric power systems, 2016, 40(14): 51-57.
DOI：

HUANG Xuanrui. [J]. Automation of electric power systems, 2016, 40(14): 51-57. DOI：

摘要

分析了规则海浪波激励下的直驱海浪发电装置的动力学模型

在将直线发电机电磁力等效为速度和位移的线性组合的控制方法基础上

分析了其输出平均功率和2个控制变量的关系和特性曲线

在此基础上提出采取爬山法实现直驱海浪发电的最大功率点跟踪(MPPT)控制。针对其中关键的输出功率测量技术——直驱海浪发电装置的平均功率测量

给出了一种包含周期判断的平均功率估算方法。为避免在暂态过程中估算方法的误差

方法中还包含了系统是否处于稳态的判断。实验结果验证了该方法的有效性

方法提升了MPPT控制方法对海浪变化的适应性和跟踪速度。

Abstract

This paper analyzes the mechanical model of direct-drive wave energy converters under the effect of regular sea waves. With the electromagnetic force of the linear generator equivalent to the linear combination of velocity and displacement as the control method

the characteristic curve of the average output power of the system under the control variables is obtained. The mountain-climbing method can achieve maximum power point-tracking(MPPT)control. For the key issue average power measurement

an average power measuring method based on period judgment is proposed. To avoid errors in estimation in the transient process

a method for judging whether the system is in a steady state is included. Experimental results have verified the validity of the proposed method that has improved its adaptability to the wave period variation and the tracking speed of the MPPT control. This work is supported by National Natural Science Foundation of China(No. 51177084).

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Related Institution

School of Electrical Engineering, Chongqing University

Jining Power Supply Company of State Grid Shandong Electric Power Company

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Extra-high Voltage Branch of State Gird Jiangxi Electric Power Co., Ltd.

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