Optimal Operation of a Parallel Multireservoir System for Flood Control using a Stagewise Compensation Method

Di Zhu, Yadong Mei (), Xinfa Xu, Zhangjun Liu, Zhenhui Wu and Hao Cai
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Di Zhu: Wuhan University
Yadong Mei: Wuhan University
Xinfa Xu: Jiangxi Provincial Institute of Water Sciences
Zhangjun Liu: Jiangxi Provincial Institute of Water Sciences
Zhenhui Wu: Wuhan University
Hao Cai: Wuhan University

Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), 2021, vol. 35, issue 6, No 3, 1689-1710

Abstract: Abstract Optimal operation of multireservoir flood control systems is a nonlinear and high-dimensional problem. For a parallel multireservoir system, the impact of joint compensation flood control operation for each reservoir on reducing the peak flow downstream should be considered. This study proposed an optimization method called the stagewise compensation method (SWCM) for flood control operation of a parallel multireservoir system based on the concept of three-stage flood control operation and compensation flood control operation. The dynamic programming-progressive optimality algorithm (DP-POA) was also implemented to verify the solutions of SWCM. The Ji’an parallel multireservoir system was selected as a case study. The results show that SWCM can decompose a parallel multireservoir system into a single-reservoir system and consider the impact of the joint compensation operation for each reservoir on reducing peak flow in the downstream area. When applying SWCM, the reduction rate of typical and 10-year, 20-year, 30-year, 50-year and 100-year designed flood peaks at Ji’an hydrological station can reach over 12% on average, which is great progress compared with conventional flood control operation rules and DP-POA.

Keywords: Parallel multireservoir system; Optimal flood control operation; Dynamic programming-progressive optimality algorithm; Stagewise compensation method (search for similar items in EconPapers)
Date: 2021
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DOI: 10.1007/s11269-021-02803-9

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