双浮筒直驱式波浪发电系统的优化控制  

Optimal Control for the Double-Buoy Direct Drive Wave Energy Conversion System

作　　者：陈中显[1] 余海涛[1] 胡敏强[1] 赵新生 吴涛 

机构地区：[1]东南大学电气工程学院,江苏南京210096 [2]连云港市海域使用保护动态管理中心,江苏连云港222001

出　　处：《海洋技术》2014年第4期12-16,共5页Ocean Technology

基　　金：国家海洋局海洋可再生能源专项资金资助项目(GHME2011GD02)

摘　　要：针对双浮筒直驱式波浪发电系统的工作效率较低问题,提出了一种基于PID(Proportional Integral Derivative)控制的系统优化方法。首先根据波浪力学理论,计算出了双浮筒直驱式波浪发电系统的外浮筒(动浮筒)在自然条件下的运行特性,计算结果表明,受到波浪频率、垂直波浪速度和波浪周期固有特性的影响,外浮筒的垂直运动速度不能与波浪的垂直运动速度达到共振,进而也就导致波浪能转换成电能的工作效率较低。当采用基于PID控制算法对该波浪发电系统进行优化控制之后,波浪能转换成电能的效率有了很大的提高。详尽的算例分析和仿真结果表明本文提出的优化控制方法有效、可行。To solve the problem of inefficient double-buoy direct drive wave energy conversion system, a system optimization method is presented based on the Proportional Integral Derivative（PID） control. Firstly, the operating characteristics of the outer buoy of the wave energy conversion system under natural conditions are calculated in line with the theory of wave mechanics. The results indicate that the low efficiency of wave energy conversion is attributed to the effect of wave frequency, vertical wave speed and wave period, which hinders the resonance of the vertical speeds of wave and the outer buoy. After the adoption of the PID control algorithm to optimize and control the system, the efficiency of wave energy conversion is significantly improved. Detailed analysis and simulation results show that the PID control method proposed in this paper is effective and feasible.

关 键 词：PID控制 海洋能 波浪发电 

分 类 号：P743.2[天文地球—海洋科学] TP273[自动化与计算机技术—检测技术与自动化装置]