2022 57th International Universities Power Engineering Conference (UPEC)最新文献_第7页

Comparison of Transient Frequency Estimation Methods for Evaluating the Frequency Gradient in Active Distribution Grids 主动配电网频率梯度暂态频率估计方法的比较

2022 57th International Universities Power Engineering Conference (UPEC) Pub Date : 2022-08-30 DOI: 10.1109/UPEC55022.2022.9917822

A. Pfendler, R. Steppan, J. Hanson

{"title":"Comparison of Transient Frequency Estimation Methods for Evaluating the Frequency Gradient in Active Distribution Grids","authors":"A. Pfendler, R. Steppan, J. Hanson","doi":"10.1109/UPEC55022.2022.9917822","DOIUrl":"https://doi.org/10.1109/UPEC55022.2022.9917822","url":null,"abstract":"In the interconnected power system, frequency control and stability are of vital importance and an indicator of the system-wide active power balance. The shutdown of conventional power plants leads to faster frequency changes and a steeper frequency gradient due to the reduced system inertia. For this reason, the importance of electrical frequency estimation methods is increasing, among others as an input variable for the control of converter-based generation plants. The aim of this work is to implement, compare and analyze the robustness of different frequency estimation methods in time-domain simulations. The Phase-Locked Loop, the Zero-Crossing method and the Recursive-Gauss-Newton method are implemented as real-time methods in a simple testbench in Matlab/Simulink. The parameters of the methods are tuned for a reference case and compared to the rotational frequency of a connected synchronous generator. With the tuned parameters, the maximum deviation between frequency estimation and the synchronous generator frequency can be limited to 15 mHz. The Zero-Crossing method shows the best robustness when changing the magnitude of the active power imbalance. In addition, the sensitive parameters of the frequency estimation methods behave approximately linear to the magnitude of the active power imbalance, so that a simple implementation can be designed for simulations.","PeriodicalId":371561,"journal":{"name":"2022 57th International Universities Power Engineering Conference (UPEC)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128371893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

List of Papers 论文清单

2022 57th International Universities Power Engineering Conference (UPEC) Pub Date : 2022-08-30 DOI: 10.4282/sosj.26.101

A. Kashubin

{"title":"List of Papers","authors":"A. Kashubin","doi":"10.4282/sosj.26.101","DOIUrl":"https://doi.org/10.4282/sosj.26.101","url":null,"abstract":"Paper1 Y. Taketomi, On a Riemannian submanifold whose slice representation has no nonzero fixed points, Hiroshima Math. J., 48 (2018), no. 1, 1–20. Paper2 Y. Taketomi and H. Tamaru, On the nonexistence of left-invariant Ricci solitons — a conjecture and examples, Transf. Groups, 23 (2018), no. 1, 257–270. Paper3 J. T. Cho, T. Hashinaga, A. Kubo, Y. Taketomi, H. Tamaru, Realizations of some contact metric manifolds as Ricci soliton real hypersurfaces, J. Geom. Phys., 123 (2018), 221–234. Paper4 J. T. Cho, T. Hashinaga, A. Kubo, Y. Taketomi, H. Tamaru, The solvable models of noncompact real two-plane Grassmannians and some applications, In: Hermitian-Grassmannian Submanifolds, Springer Proc. Math. Stat., 203 (2017), 311–321. Paper5 A. Kubo, K. Onda, Y. Taketomi, H. Tamaru, On the moduli spaces of leftinvariant pseudo-Riemannian metrics on Lie groups, Hiroshima Math. J., 46 (2016), no. 3, 357–374. Paper6 Y. Taketomi, On a Riemannian submanifold whose slice representation has no nonzero fixed point — an introduction, Proceedings of the 19th International Workshop on Hermitian-Grassmannian Submanifolds and 10th RIRCM-OCAMI Joint Differential Geometry Workshop, 225–231, Natl. Inst. Math. Sci. (NIMS), Taejŏn, 2015. Paper7 Y. Taketomi, Examples of hyperpolar actions of the automorphism groups of Lie algebras, Topology Appl. 196 (2015), part B, 904–910.","PeriodicalId":371561,"journal":{"name":"2022 57th International Universities Power Engineering Conference (UPEC)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127397058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The impact assessment of an energy efficiency focused course implementation in electrical engineering undergraduate students curricula 在电气工程本科课程中实施能效课程的影响评估

2022 57th International Universities Power Engineering Conference (UPEC) Pub Date : 2022-08-30 DOI: 10.1109/UPEC55022.2022.9917924

C. Mureşan, L. Darabant, D. Şteţ, S. Cirstea, L. Czumbil, A. Ceclan, Timea Farkas, A. Polycarpou, D. Micu

{"title":"The impact assessment of an energy efficiency focused course implementation in electrical engineering undergraduate students curricula","authors":"C. Mureşan, L. Darabant, D. Şteţ, S. Cirstea, L. Czumbil, A. Ceclan, Timea Farkas, A. Polycarpou, D. Micu","doi":"10.1109/UPEC55022.2022.9917924","DOIUrl":"https://doi.org/10.1109/UPEC55022.2022.9917924","url":null,"abstract":"The global energy situation highlights the critical need for sustainability-focused education and raising awareness for environmental issues among the younger generation. In the same context, the increased demand for well-trained energy professionals is often emphasized as a key factor for a smooth and efficient energy transition. Despite this, there is a limited number of studies in the literature presenting examples of good practice in sustainability and energy efficiency implementation in higher education curricula. This study aims to fill this gap in the framework of an impact assessment survey concerning the implementation of a dedicated optional course in sustainability and energy efficiency field for undergraduate electrical engineering students. The results of the survey show that together with a better understanding of specific concepts, improvements in concern, willingness and behavior associated with sustainability and energy efficiency concepts have been reported by students, after they attended the proposed course during the semester.","PeriodicalId":371561,"journal":{"name":"2022 57th International Universities Power Engineering Conference (UPEC)","volume":"23 S2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120856852","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The Hydrophobicity Class Identification of Silicone-Rubber Samples using Deep Learning Algorithms 基于深度学习算法的硅橡胶样品疏水性分类识别

2022 57th International Universities Power Engineering Conference (UPEC) Pub Date : 2022-08-30 DOI: 10.1109/UPEC55022.2022.9917706

Nesibe Demiroglu, Idris Ozdemir, Halil Ibrahim Uckol, S. Ilhan

引用次数: 0

Analysis and Simulation of Current-Only Directional Protection Incorporating Simple Communications 基于简单通信的纯电流定向保护的分析与仿真

2022 57th International Universities Power Engineering Conference (UPEC) Pub Date : 2022-08-30 DOI: 10.1109/UPEC55022.2022.9917648

Pannita Rajakrom, C. Booth, Q. Hong

引用次数: 0

Enhanced Finite Control Set-Model Predictive Control for Three-Phase Split-Source Inverters 三相分源逆变器的改进有限控制集模型预测控制

2022 57th International Universities Power Engineering Conference (UPEC) Pub Date : 2022-08-30 DOI: 10.1109/UPEC55022.2022.9917867

Abualkasim Bakeer, S. Dabour, I. A. Gowaid, A. Aboushady, M. Elgenedy, M. Farrag

引用次数: 1

On the Reliability of Static Load Models for the Modeling of Active Distribution Networks under Steady-State Conditions 有功配电网稳态状态下静态负荷模型的可靠性研究

2022 57th International Universities Power Engineering Conference (UPEC) Pub Date : 2022-08-30 DOI: 10.1109/UPEC55022.2022.9917839

I. D. Pasiopoulou, E. O. Kontis, Ioannis A. Angelis, T. Papadopoulos, G. Papagiannis

引用次数: 0

One Step Ahead Energy Load Forecasting: A Multi-model approach utilizing Machine and Deep Learning 超前一步的能源负荷预测:利用机器和深度学习的多模型方法

2022 57th International Universities Power Engineering Conference (UPEC) Pub Date : 2022-08-30 DOI: 10.1109/UPEC55022.2022.9917790

Aristeidis Mystakidis, Evangelia Ntozi, Konstantinos D. Afentoulis, Paraskevas Koukaras, Georgios Giannopoulos, N. Bezas, P. Gkaidatzis, D. Ioannidis, Christos Tjortjis, D. Tzovaras

{"title":"One Step Ahead Energy Load Forecasting: A Multi-model approach utilizing Machine and Deep Learning","authors":"Aristeidis Mystakidis, Evangelia Ntozi, Konstantinos D. Afentoulis, Paraskevas Koukaras, Georgios Giannopoulos, N. Bezas, P. Gkaidatzis, D. Ioannidis, Christos Tjortjis, D. Tzovaras","doi":"10.1109/UPEC55022.2022.9917790","DOIUrl":"https://doi.org/10.1109/UPEC55022.2022.9917790","url":null,"abstract":"Emerging Energy Load Forecasting (ELF) methodologies assist Distribution System Operators (DSOs) and Aggregators. Energy imbalance among consumption and generation could also be managed with high prediction accuracy, as well as smart grid applications, like Demand Response (DR) events. This study aims to test several algorithms as a solution for ELF. The proposed methodology utilizes machine/deep learning models for time-series forecasting in the domain of energy consumption. Via result comparison it has been illustrated that Neural Networks (NNs), both artificial NNs such as Multilayer Perceptron (MLP) and Long Short-Term Memory (LSTM) recurrent NNs with Extreme Gradient Boosting (XGBoost) were the more accurate ones among other models, showcasing Mean Absolute Error (MAE), R-squared (R2), Root Mean Squared Error (RMSE) and Coefficient Variation of Root Mean Squared Error (CVRMSE) values equal to 1.281, 0.98, 2.238 and 0.147, respectively.","PeriodicalId":371561,"journal":{"name":"2022 57th International Universities Power Engineering Conference (UPEC)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115298948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

An Evaluation of Extending an Existing Substation Automation System using IEC 61850 用IEC 61850扩展现有变电站自动化系统的评价

2022 57th International Universities Power Engineering Conference (UPEC) Pub Date : 2022-08-30 DOI: 10.1109/UPEC55022.2022.9917631

Michael O Donovan, Aidan Heffernan, Seamus Keena, N. Barry

{"title":"An Evaluation of Extending an Existing Substation Automation System using IEC 61850","authors":"Michael O Donovan, Aidan Heffernan, Seamus Keena, N. Barry","doi":"10.1109/UPEC55022.2022.9917631","DOIUrl":"https://doi.org/10.1109/UPEC55022.2022.9917631","url":null,"abstract":"Substation Automation Systems are commonly used to control, protect and monitor substations in a power system. Many existing substation automation systems use proprietary protocols, which are no longer supported. Therefore, expensive and complex solutions are often required when automation equipment fails or reaches the end of life (15/20 years), or a substation extension is required. Older proprietary-based protocols in substation automation systems are being updated and replaced by introducing the IEC 61850 standard series.IEC 61850 brings significant changes to how Intelligent Electronic Devices used for protection are to be tested. The introduction of non-traditional relay signals resulted in the need for new tools and processes regarding commissioning, testing and maintenance.This paper provides an overview of existing proprietary protocols and outlines the IEC 61850 standard. The challenges in testing IEC 61850 protection equipment are investigated. Finally, a power utility approach for extending existing legacy substation automation systems is demonstrated in a lab-based trial. The comparison illustrated the many benefits of installing and extending substations using IEC 61850 rather than reengineering the proprietary systems.","PeriodicalId":371561,"journal":{"name":"2022 57th International Universities Power Engineering Conference (UPEC)","volume":" 8","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114051503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Combined Transmission and Distribution Test System for Small-Signal Stability Analysis: Initial Results 输配联合测试系统的小信号稳定性分析:初步结果

2022 57th International Universities Power Engineering Conference (UPEC) Pub Date : 2022-08-30 DOI: 10.1109/UPEC55022.2022.9917807

T. Papadopoulos, Georgios A. Barzegkar-Ntovom, E. O. Kontis, Evangelos A. Koukoulianta

引用次数: 0