基于改进离散状态转移算法的复杂地形崎岖度约束风电场微观选址优化  

Micro-site optimization of complex terrain ruggedness constrained wind farms based on im-proved discrete state transition algorithm

作　　者：刘佳惠 王聪 张宏立[1] 马萍[1] 李新凯[1] Liu Jiahui;Wang Cong;Zhang Hongli;Ma Ping;Li Xinkai(Xinjiang University,Urumqi 830017,China)

机构地区：[1]新疆大学,新疆乌鲁木齐830017

出　　处：《可再生能源》2024年第12期1618-1626,共9页Renewable Energy Resources

基　　金：科技部重点研发计划项目(2021YFB1507000);新疆维吾尔自治区自然科学基金资助项目(2022D01E33,2022D01C367);国家自然科学基金(52267010)。

摘　　要：为解决复杂地形下风电场微观选址问题,文章提出了一种基于改进离散状态转移算法(RC-DSTA)的优化策略。首先,为解决地面平整度对风机安置的影响,引入崎岖度指数(TRI)将地面平整度进行数值量化,并对崎岖度过大的点进行约束处理;然后,提出一种基于离散状态转移算法(DSTA)的多风向下三维尾流叠加计算发电量的风机布局优化方法,并对离散状态转移算法进行改进,减少适应度值的计算时间,以缩短复杂计算优化问题的计算时长,提高计算效率;最后,以新疆某实际复杂地形风电场为例,在同一地形条件和目标函数背景下,将该算法与遗传算法(GA)和工程设计的微观选址结果进行比较。结果表明,在考虑地形因素特点的情况下,提供合理的风机布局方案,RC-DSTA比其他两种方法更有效。In order to solve the micro-siting problem of wind farms under complex terrain,an optimization strategy based on improved discrete state transfer algorithm(RC-DSTA)is proposed.Firstly,in order to solve the influence of ground flatness on fan placement,the terrain ruggedness index(TRI)is introduced to quantify the ground flatness numerically,and the points with excessive ruggedness are constrained.Secondly,a wind turbine layout optimization method based on discrete state transition algorithm(DSTA)is proposed to calculate power generation by multiwind downward three-dimensional wake superposition,and the DSTA algorithm is improved to reduce the calculation time of fitness value,so as to shorten the calculation time of complex calculation optimization problems and improve the calculation efficiency.Finally,taking a wind farm with complex terrain in Xinjiang,China as an example,the algorithm is compared with the microscopic site selection results of genetic algorithm(GA)and engineering design under the background of the same terrain conditions and objective function.The simulation results show that the discrete state transition algorithm is more effective than the above two methods in providing a reasonable fan layout scheme considering the characteristics of terrain factors.

关 键 词：风电场 微观选址 复杂地形 离散状态转移算法 崎岖度指数 

分 类 号：TK81[动力工程及工程热物理—流体机械及工程]