CAJ | 학술논문

差分进化算法能够全局并行和高效搜索，在求解水电站发电优化调度问题中具备一定优势，但同时存在一些问题。本文针对差分进化算法初始种群代表性不足的问题，引入基于均匀设计的初始种群生成方式；针对差分进化算法两种常用变异模式侧重于不同搜索阶段的特点，引入了兼顾两种模式优点的“Rand-Best耦合模式的变异算子”；针对算法局部搜索能力欠缺的问题，借鉴梯度寻优思想，构建了“梯度加速附加算子”。以三峡水电站为例，说明了综合改进差分进化算法 UCG-MDE的有效性，该算法大幅提高了解的精度、稳定性和收敛率。
차분진화산법능구전국병행화고효수색，재구해수전참발전우화조도문제중구비일정우세，단동시존재일사문제。본문침대차분진화산법초시충군대표성불족적문제，인입기우균균설계적초시충군생성방식；침대차분진화산법량충상용변이모식측중우불동수색계단적특점，인입료겸고량충모식우점적“Rand-Best우합모식적변이산자”；침대산법국부수색능력흠결적문제，차감제도심우사상，구건료“제도가속부가산자”。이삼협수전참위례，설명료종합개진차분진화산법 UCG-MDE적유효성，해산법대폭제고료해적정도、은정성화수렴솔。
With parallel and efficient global search ability, Differential Evolution (DE) algorithm has cer?tain advantages for solving the optimal operation problem of hydropower generating, but there still exist some problems. In order to improve the representation of the initial population, a way of generating initial population based on uniform design is introduced. Considering two common mutation operators of DE fit dif?ferent search phase respectively, the“coupling Rand-Best mode of mutation operator”with the advantages of both is provided. In view of the fact that DE lacks local searching ability in some sense, the“addition?al gradient acceleration operator”is proposed,inspired by the gradient optimization ideas in classical optimi?zation algorithm. The results of application in the Three Gorges hydropower station show that the Comprehen?sive Modified Differential Evolution (UCG-MDE) is effective, significantly improving the accuracy, stability and convergence rate of solutions.