Electrical Energy Prediction of Combined Cycle Power Plant Using Gradient Boosted Generalized Additive Model

A combined cycle power plant (CCPP) employs gas and steam turbines to generate 50% more power while utilizing the same fuel as a normal single cycle plant. The performance of a CCPP under full load is affected by a variety of factors such as weather, process interactions, and coupling, wh...

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Main Authors: Nikhil Pachauri, Chang Wook Ahn
Format: Article
Language:English
Published: IEEE 2022-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9718328/
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author Nikhil Pachauri
Chang Wook Ahn
author_facet Nikhil Pachauri
Chang Wook Ahn
author_sort Nikhil Pachauri
collection DOAJ
description A combined cycle power plant (CCPP) employs gas and steam turbines to generate 50% more power while utilizing the same fuel as a normal single cycle plant. The performance of a CCPP under full load is affected by a variety of factors such as weather, process interactions, and coupling, which makes it challenging to operate. Therefore, a reliable assessment of the maximum output power of a CCPP is required to improve plant reliability and monetary performance. In this paper, a predictive model based on a generalized additive model (GAM) is proposed for the electrical power prediction of a CCPP at full load. In GAM, a boosted tree and gradient boosting algorithm are considered as shape function and learning technique for modeling a non-linear relationship between input and output attributes. Furthermore, predictive models based on linear regression (LR), Gaussian process regression (GPR), multilayer perceptron neural network (MLP), support vector regression (SVR), decision tree (DT), and bootstrap-aggregated tree (BBT) are also designed for comparison purposes. Results reveal that GAM improves the RMSE by 74%, 68.8%, 70.3%, 54.8%, 21.2%, and 17.3% compared to LR, GPR, MLP, SVR, DT, and BBT, respectively. Furthermore, the results of the Man-Whitney U test and rank analysis also confirm the effectiveness of GAM for energy prediction of CCPP. Finally, it can be concluded that the proposed method is effective, robust, and accurate for the assessment of the maximum output power of a CCPP to improve plant consistency and financial performance.
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spelling doaj.art-8108df9598ee4db1927fe40f8b00ad692022-12-21T16:43:09ZengIEEEIEEE Access2169-35362022-01-0110245662457710.1109/ACCESS.2022.31537209718328Electrical Energy Prediction of Combined Cycle Power Plant Using Gradient Boosted Generalized Additive ModelNikhil Pachauri0https://orcid.org/0000-0003-2363-3129Chang Wook Ahn1https://orcid.org/0000-0002-9902-5966Artificial Intelligence Graduate School, Gwangju Institute of Science and Technology, Gwangju, South KoreaArtificial Intelligence Graduate School, Gwangju Institute of Science and Technology, Gwangju, South KoreaA combined cycle power plant (CCPP) employs gas and steam turbines to generate 50% more power while utilizing the same fuel as a normal single cycle plant. The performance of a CCPP under full load is affected by a variety of factors such as weather, process interactions, and coupling, which makes it challenging to operate. Therefore, a reliable assessment of the maximum output power of a CCPP is required to improve plant reliability and monetary performance. In this paper, a predictive model based on a generalized additive model (GAM) is proposed for the electrical power prediction of a CCPP at full load. In GAM, a boosted tree and gradient boosting algorithm are considered as shape function and learning technique for modeling a non-linear relationship between input and output attributes. Furthermore, predictive models based on linear regression (LR), Gaussian process regression (GPR), multilayer perceptron neural network (MLP), support vector regression (SVR), decision tree (DT), and bootstrap-aggregated tree (BBT) are also designed for comparison purposes. Results reveal that GAM improves the RMSE by 74%, 68.8%, 70.3%, 54.8%, 21.2%, and 17.3% compared to LR, GPR, MLP, SVR, DT, and BBT, respectively. Furthermore, the results of the Man-Whitney U test and rank analysis also confirm the effectiveness of GAM for energy prediction of CCPP. Finally, it can be concluded that the proposed method is effective, robust, and accurate for the assessment of the maximum output power of a CCPP to improve plant consistency and financial performance.https://ieeexplore.ieee.org/document/9718328/Combined cycle power plantelectrical energygeneralized additive modellinear regressiondecision treeMan-Whitney U test
spellingShingle Nikhil Pachauri
Chang Wook Ahn
Electrical Energy Prediction of Combined Cycle Power Plant Using Gradient Boosted Generalized Additive Model
IEEE Access
Combined cycle power plant
electrical energy
generalized additive model
linear regression
decision tree
Man-Whitney U test
title Electrical Energy Prediction of Combined Cycle Power Plant Using Gradient Boosted Generalized Additive Model
title_full Electrical Energy Prediction of Combined Cycle Power Plant Using Gradient Boosted Generalized Additive Model
title_fullStr Electrical Energy Prediction of Combined Cycle Power Plant Using Gradient Boosted Generalized Additive Model
title_full_unstemmed Electrical Energy Prediction of Combined Cycle Power Plant Using Gradient Boosted Generalized Additive Model
title_short Electrical Energy Prediction of Combined Cycle Power Plant Using Gradient Boosted Generalized Additive Model
title_sort electrical energy prediction of combined cycle power plant using gradient boosted generalized additive model
topic Combined cycle power plant
electrical energy
generalized additive model
linear regression
decision tree
Man-Whitney U test
url https://ieeexplore.ieee.org/document/9718328/
work_keys_str_mv AT nikhilpachauri electricalenergypredictionofcombinedcyclepowerplantusinggradientboostedgeneralizedadditivemodel
AT changwookahn electricalenergypredictionofcombinedcyclepowerplantusinggradientboostedgeneralizedadditivemodel