基于多种群遗传算法的波能装置的优化设计及分析

作为可再生能源,波浪能的吸收和利用一直是国内外热点研究内容之一。本文提出一种新的基于惯性摆结构的波浪能吸收转换方法,对这种结构在波浪力作用下的频域响应进行了分析,建立了其最优化能量获取模型,提出采用多种群遗传算法对其结构进行优化设计,并针对系统所受波浪力(矩)随载体半径改变而改变,且求取困难的问题,采用最小二乘法对波浪力(矩)与载体半径变化的关系进行了拟和。通过优化结果找出影响结构获取波浪能量的因素,仿真结果表明了方法的先进性,为进一步的应用研究和频域波能获取研究奠定了基础。

As one of the renewable energies,absorption and utilization of wave energy is always an important research field both at home and abroad.In this paper,a new method of absorbing wave energy based on inertial pendulum is presented.Meanwhile,the frequency-dependent response of the configuration is analyzed,the optimal model of absorbed energy is established,and the optimized design method of the configuration is proposed based on multiple-population genetic algorithm.Due to wave force(or torque)is changeable with carrier radius;the least-square method is introduced to represent the relationship of wave force(or torque)with carrier radius.From the optimized results,the factors that affect the absorbed energy significantly are found,which provide a basis for further application research work and wave energy absorption research in frequency domain.