基于改进逐步优化算法的水库防洪优化调度
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摘要
通过分析水库防洪优化调度模型以及逐步优化算法(POA)在运算中常收敛于局部最优的缺陷,提出了一种基于水量平衡的改进算法,避免总决策序列在复杂的约束条件下被分隔成若干不相互作用的子序列,使得算法更具跳跃性,不易陷入局部最优。实例分析表明:在水库防洪优化调度中,改进后的算法基本上能够解决传统POA过于依赖初始解的问题,提高了全局搜索能力,并且加快了收敛速度,具有良好的实用价值和借鉴意义。
A flood control optimization model and progressive optimization algorithm( POA) 's defects that is easy to converge to local optimum during operations had been introduced briefly.This paper proposed an improved algorithm based on water balance,avoiding decision sequences separated into several non interacting subsequences under complex constraints. The algorithm itself had stronger bound and it was hard to trap in the local optimal value.The case study results demonstrate that comparing with traditional POA,improved algorithm can basically solve the problem that POA is strongly dependent on initial sequences. Furthermore,improved algorithm can also enhance the global search ability and convergence speed,which verified the algorithm's well practical value and reference.
A flood control optimization model and progressive optimization algorithm( POA) 's defects that is easy to converge to local optimum during operations had been introduced briefly.This paper proposed an improved algorithm based on water balance,avoiding decision sequences separated into several non interacting subsequences under complex constraints. The algorithm itself had stronger bound and it was hard to trap in the local optimal value.The case study results demonstrate that comparing with traditional POA,improved algorithm can basically solve the problem that POA is strongly dependent on initial sequences. Furthermore,improved algorithm can also enhance the global search ability and convergence speed,which verified the algorithm's well practical value and reference.
引文
[1]刘祥军,侯召成.水库防洪调度研究发展趋势[J].水利发展研究,2005,1(4):12-14.
[2]孙继昌.水库管理指南[M].南京:河海大学出版社,2012:38-52.
[3]董子敖.水库群调度与规划的优化理论和应用[M].济南:山东科技出版社,1989:113-134.
[4] HOWSON H R,SANCHO N G F. A New Algorithm for the Solution of Multi-State Dynamic Programming Problems[J].Math.Programm,1975,8(1):104-116.
[5]方红远,王浩,程吉林.初始轨迹对逐步优化算法收敛性的影响[J].水利学报,2002,33(11):27-30.
[6]秦旭宝,董增川,费如君,等.基于逐步优化算法的水库防洪优化调度模型研究[J].水电能源科学,2008,26(4):60-62.
[7]乔睿至,马光文,黄炜斌.基于改进POA算法的综合利用梯级水电站群中长期优化调度研究[J].华东电力,2011,39(4):519-523.
[8]张诚,周建中,王超,等.梯级水电站优化调度的变阶段逐步优化算法[J].水力发电学报,2016,35(4):12-21.
[9]钟平安.水库防洪优化调度目标函数分析[J].水利经济,1995,1(2):38-42.
[10]杨侃,丰景春,陆桂华.水库调度中逐次优化算法(POA)的收敛性研究[J].河海大学学报,1996,24(1):104-107.
[2]孙继昌.水库管理指南[M].南京:河海大学出版社,2012:38-52.
[3]董子敖.水库群调度与规划的优化理论和应用[M].济南:山东科技出版社,1989:113-134.
[4] HOWSON H R,SANCHO N G F. A New Algorithm for the Solution of Multi-State Dynamic Programming Problems[J].Math.Programm,1975,8(1):104-116.
[5]方红远,王浩,程吉林.初始轨迹对逐步优化算法收敛性的影响[J].水利学报,2002,33(11):27-30.
[6]秦旭宝,董增川,费如君,等.基于逐步优化算法的水库防洪优化调度模型研究[J].水电能源科学,2008,26(4):60-62.
[7]乔睿至,马光文,黄炜斌.基于改进POA算法的综合利用梯级水电站群中长期优化调度研究[J].华东电力,2011,39(4):519-523.
[8]张诚,周建中,王超,等.梯级水电站优化调度的变阶段逐步优化算法[J].水力发电学报,2016,35(4):12-21.
[9]钟平安.水库防洪优化调度目标函数分析[J].水利经济,1995,1(2):38-42.
[10]杨侃,丰景春,陆桂华.水库调度中逐次优化算法(POA)的收敛性研究[J].河海大学学报,1996,24(1):104-107.