Exponential to ZIP and ZIP to exponential load model conversion: Methods and error
Abstract This paper presents several methods for performing two types of static load model conversion: exponential to ZIP & ZIP to exponential model conversion. In general, these conversions are inaccurate due to non‐equivalence of exponential and ZIP (second‐order polynomial) models. A numerica...
Main Authors: | , |
---|---|
Format: | Article |
Language: | English |
Published: |
Wiley
2021-01-01
|
Series: | IET Generation, Transmission & Distribution |
Online Access: | https://doi.org/10.1049/gtd2.12002 |
id |
doaj-901e28943cb54f5b96e4ff555f643020 |
---|---|
record_format |
Article |
spelling |
doaj-901e28943cb54f5b96e4ff555f6430202021-07-14T13:20:09ZengWileyIET Generation, Transmission & Distribution1751-86871751-86952021-01-0115217719310.1049/gtd2.12002Exponential to ZIP and ZIP to exponential load model conversion: Methods and errorMadis Leinakse0Jako Kilter1Department of Electrical Power Engineering and Mechatronics Tallinn University of Technology Tallinn EstoniaDepartment of Electrical Power Engineering and Mechatronics Tallinn University of Technology Tallinn EstoniaAbstract This paper presents several methods for performing two types of static load model conversion: exponential to ZIP & ZIP to exponential model conversion. In general, these conversions are inaccurate due to non‐equivalence of exponential and ZIP (second‐order polynomial) models. A numerical analysis is conducted using generated datasets of load models to analyse the error and to compare the accuracy of the presented methods. The results of the analysis indicate that the optimal selection of conversion method depends on a number of factors, including normalisation of load models, ZIP model type (accurate or constrained) and expected use of the converted model. In addition, a case study is conducted to analyse the impact of conversion error on load flow results. The results of the case study indicate that a significant difference in load flow results can occur when the load models are converted. Recommendations for conversion method selection are given in the discussion section of the paper.https://doi.org/10.1049/gtd2.12002 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Madis Leinakse Jako Kilter |
spellingShingle |
Madis Leinakse Jako Kilter Exponential to ZIP and ZIP to exponential load model conversion: Methods and error IET Generation, Transmission & Distribution |
author_facet |
Madis Leinakse Jako Kilter |
author_sort |
Madis Leinakse |
title |
Exponential to ZIP and ZIP to exponential load model conversion: Methods and error |
title_short |
Exponential to ZIP and ZIP to exponential load model conversion: Methods and error |
title_full |
Exponential to ZIP and ZIP to exponential load model conversion: Methods and error |
title_fullStr |
Exponential to ZIP and ZIP to exponential load model conversion: Methods and error |
title_full_unstemmed |
Exponential to ZIP and ZIP to exponential load model conversion: Methods and error |
title_sort |
exponential to zip and zip to exponential load model conversion: methods and error |
publisher |
Wiley |
series |
IET Generation, Transmission & Distribution |
issn |
1751-8687 1751-8695 |
publishDate |
2021-01-01 |
description |
Abstract This paper presents several methods for performing two types of static load model conversion: exponential to ZIP & ZIP to exponential model conversion. In general, these conversions are inaccurate due to non‐equivalence of exponential and ZIP (second‐order polynomial) models. A numerical analysis is conducted using generated datasets of load models to analyse the error and to compare the accuracy of the presented methods. The results of the analysis indicate that the optimal selection of conversion method depends on a number of factors, including normalisation of load models, ZIP model type (accurate or constrained) and expected use of the converted model. In addition, a case study is conducted to analyse the impact of conversion error on load flow results. The results of the case study indicate that a significant difference in load flow results can occur when the load models are converted. Recommendations for conversion method selection are given in the discussion section of the paper. |
url |
https://doi.org/10.1049/gtd2.12002 |
work_keys_str_mv |
AT madisleinakse exponentialtozipandziptoexponentialloadmodelconversionmethodsanderror AT jakokilter exponentialtozipandziptoexponentialloadmodelconversionmethodsanderror |
_version_ |
1721302945652277248 |