Similarity-Based Models for Day-Ahead Solar PV Generation Forecasting

Accurate forecasting of solar photovoltaic (PV) power for the next day plays an important role in unit commitment, economic dispatch, and storage system management. However, forecasting solar PV power in high temporal resolution such as five-minute resolution is challenging because most of PV foreca...

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Main Authors: Hossein Sangrody, Ning Zhou, Ziang Zhang
Format: Article
Language:English
Published: IEEE 2020-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9108282/
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author Hossein Sangrody
Ning Zhou
Ziang Zhang
author_facet Hossein Sangrody
Ning Zhou
Ziang Zhang
author_sort Hossein Sangrody
collection DOAJ
description Accurate forecasting of solar photovoltaic (PV) power for the next day plays an important role in unit commitment, economic dispatch, and storage system management. However, forecasting solar PV power in high temporal resolution such as five-minute resolution is challenging because most of PV forecasting models can only achieve the same temporal resolution as their predictors(i.e., weather variables), whose temporal resolution is usually low (i.e., hourly). To address this challenge, similarity-based forecasting models (SBFMs) are advocated in this paper to forecast PV power in high temporal resolution using low temporal resolution weather variables. To effectively generalize the model for different scenarios of available weather data, three forecasting models (i.e., basic SBFM, categorical SBFM, and hierarchical SBFM) are proposed. As a case study, the PV power generated by the solar panels on the rooftop of a commercial building is forecasted for the next day with a five-minute resolution under three different scenarios of available weather data. The leave-one-out cross-validation analysis reveals that using only two or three weather variables, the proposed SBFMs can achieve higher forecasting accuracy than several benchmark models.
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spelling doaj.art-d4a88b983a3740b9a62fd147f31f0dc42022-12-21T21:28:21ZengIEEEIEEE Access2169-35362020-01-01810446910447810.1109/ACCESS.2020.29999039108282Similarity-Based Models for Day-Ahead Solar PV Generation ForecastingHossein Sangrody0https://orcid.org/0000-0002-1743-146XNing Zhou1Ziang Zhang2https://orcid.org/0000-0003-1240-5710Department of Electrical and Computer Engineering, State University of New York at Binghamton, Binghamton, NY, USADepartment of Electrical and Computer Engineering, State University of New York at Binghamton, Binghamton, NY, USADepartment of Electrical and Computer Engineering, State University of New York at Binghamton, Binghamton, NY, USAAccurate forecasting of solar photovoltaic (PV) power for the next day plays an important role in unit commitment, economic dispatch, and storage system management. However, forecasting solar PV power in high temporal resolution such as five-minute resolution is challenging because most of PV forecasting models can only achieve the same temporal resolution as their predictors(i.e., weather variables), whose temporal resolution is usually low (i.e., hourly). To address this challenge, similarity-based forecasting models (SBFMs) are advocated in this paper to forecast PV power in high temporal resolution using low temporal resolution weather variables. To effectively generalize the model for different scenarios of available weather data, three forecasting models (i.e., basic SBFM, categorical SBFM, and hierarchical SBFM) are proposed. As a case study, the PV power generated by the solar panels on the rooftop of a commercial building is forecasted for the next day with a five-minute resolution under three different scenarios of available weather data. The leave-one-out cross-validation analysis reveals that using only two or three weather variables, the proposed SBFMs can achieve higher forecasting accuracy than several benchmark models.https://ieeexplore.ieee.org/document/9108282/Solar PV forecastingsimilarity analysishierarchical similarityhigh temporal resolution solar forecastingday-ahead forecasting
spellingShingle Hossein Sangrody
Ning Zhou
Ziang Zhang
Similarity-Based Models for Day-Ahead Solar PV Generation Forecasting
IEEE Access
Solar PV forecasting
similarity analysis
hierarchical similarity
high temporal resolution solar forecasting
day-ahead forecasting
title Similarity-Based Models for Day-Ahead Solar PV Generation Forecasting
title_full Similarity-Based Models for Day-Ahead Solar PV Generation Forecasting
title_fullStr Similarity-Based Models for Day-Ahead Solar PV Generation Forecasting
title_full_unstemmed Similarity-Based Models for Day-Ahead Solar PV Generation Forecasting
title_short Similarity-Based Models for Day-Ahead Solar PV Generation Forecasting
title_sort similarity based models for day ahead solar pv generation forecasting
topic Solar PV forecasting
similarity analysis
hierarchical similarity
high temporal resolution solar forecasting
day-ahead forecasting
url https://ieeexplore.ieee.org/document/9108282/
work_keys_str_mv AT hosseinsangrody similaritybasedmodelsfordayaheadsolarpvgenerationforecasting
AT ningzhou similaritybasedmodelsfordayaheadsolarpvgenerationforecasting
AT ziangzhang similaritybasedmodelsfordayaheadsolarpvgenerationforecasting