文章基本信息

标题：A steepest descent algorithm for the optimal control of a cascaded hydropower system
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作者：Olalekan Ogunbiyi ; Cornelius T. Thomas ; Oludare Y. Ogundepo 等
期刊名称：International Journal of Electrical and Computer Engineering
电子版ISSN：2088-8708
出版年度：2020
卷号：10
期号：4
页码：4136-4144
DOI：10.11591/ijece.v10i4.pp4136-4144
出版社：Institute of Advanced Engineering and Science (IAES)
摘要：Optimal power generation along the cascaded Kainji-Jebba hydroelectric power system had been very difficult to achieve. The reservoirs operating heads are being affected by possible variation in impoundments upstream, stochastic factors that are weather-related, availability of the turbo-alternators and power generated at any time. Proposed in this paper, is an algorithm for solving the optimal release of water on the cascaded hydropower system based on steepest descent method. The uniqueness of this work is the conversion of the infinite dimensional control problem to a finite one, the introduction of clever techniques for choosing the steepest descent step size in each iteration and the nonlinear penalty embedded in the procedure. The control algorithm was implemented in an Excel VBA® environment to solve the ormulated Lagrange problem within an accuracy of 0.03%. It is recommended for use in system studies and control design for the optimal power generation in the cascaded hydropower system.
关键词：Cascaded Hydropower;Inflows;Operating Head;Performance Index;Steepest Descent