Evaluation of Optimization Algorithms to Adjust Efficiency Curves for Hydroelectric Generating Units

被引：12

作者：

Hidalgo, Ieda G. ^{[1
]}

Fontane, Darrell G. ^{[2
]}

Arabi, Mazdak ^{[2
]}

Lopes, Joao E. G. ^{[3
]}

Andrade, Jose G. P. ^{[1
]}

Ribeiro, Lubienska C. L. J. ^{[1
]}

机构：

[1] Univ Estadual Campinas, Fac Technol, Campinas, SP, Brazil

[2] Colorado State Univ, Fac Civil & Environm Engn, Ft Collins, CO 80523 USA

[3] Univ Estadual Campinas, Fac Civil Engn, Campinas, SP, Brazil

来源：

JOURNAL OF ENERGY ENGINEERING | 2012年 / 138卷 / 04期

基金：

巴西圣保罗研究基金会;

关键词：

Hydroelectric operation; Efficiency curves; Generating units; Optimization methods; COMMITMENT;

D O I：

10.1061/(ASCE)EY.1943-7897.0000074

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The power generated by a hydroelectric plant depends on the penstock head loss, the turbine efficiency, and the generator efficiency among other factors. Initially, the functions related to these variables are provided by the equipment manufacturer; however, over time they change as the plant ages. This paper presents a methodology to adjust an efficiency function for each generating unit based on measured data. It is applied using two optimization methods: the generalized reduced gradient and the evolutionary algorithm. A case study with data from a large Brazilian hydroelectric plant demonstrates how the methodology can be employed and compares the performance of the optimization tools. A comparison metric is used to show that the optimal unit efficiency function significantly improves the performance of simulation models to reproduce observed data and better describe the actual operation of the hydroelectric plant. DOI: 10.1061/(ASCE)EY.1943-7897.0000074. (C) 2012 American Society of Civil Engineers.

引用

页码：172 / 178

页数：7

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