检索结果-内蒙古大学图书馆

International Conference on Modern power systems (MPS)

作者： Dragoş Lucian Chiorean Dorin Bică Cristian Gorea Ilie Vlasa Corina-Cătălina Hurducaci Alexandru Mandiş Department of Electrical Power Systems Faculty of Energy Engineering University Politehnica of Bucharest Romania Department of Electrical Engineering and Information Technology Faculty of Engineering and Information Technology “George Emil Palade” University of Medicine Pharmacy Science Technology Târgu Mureş Romania Distributie Energie Electrică Romania S.A. jud. Cluj Bucharest University of Economic Studies Accounting Doctoral School Bucharest Romania

This paper explores the use of artificial intelligence (AI) for optimizing the operation of energy storage systems obtained from renewable sources. After presenting the theoretical foundations of renewable energy, energy storage, and AI optimization algorithms, the paper focuses on how AI can be applied to improve the efficiency and performance of energy storage systems. Existing case studies are analyzed to highlight the advantages and challenges of using AI in this context. Ultimately, this paper concludes that using AI for optimizing renewable energy storage systems is a promising method to enhance efficiency and contribute to the transition to a low-carbon economy.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Proposal for Simplifying Smart Metering Data Access for Authorised Energy Service Providers and Other Third-Parties Upon End-Consumer Request and Consent

Proposal for Simplifying Smart Metering Data Access for Auth...

引用

International Scientific Conference on Electric power engineering (EPE)

作者： Valeria Maksimovich Michal Vrana Martin Vojtek Michal Ptacek Alina Demchenko Gleb Nesterenko School of Industrial Engineering of Barcelona (ETSEIB) Universitat Politècnica de Catalunya Barcelona Spain Department of Electrical Power Engineering (FEKT UEEN) Brno University of Technology Brno Czech Republic Faculty of Electrical Engineering Czech Technical University in Prague Prague Czech Republic Next Generation Network The International Council on Large Electric Systems (CIGRE) Astana Kazakhstan

The smart meter data unlock new saving and earning opportunities for both individual households and energy communities. The infrastructure, complexity, and administrative procedures involved with third-party smart meter data access vary greatly between EU member states. The current data access process poses a significant barrier to energy-saving tools and platforms. The customer data request and consent is not opaque, long-lasting, and complicated to perform. In addition, the data access process most of the time is not linked to the e-citizen digital identity which represents a missed opportunity for a simple procedure of consumer content and identification. The authors of this study have selected three representative countries with varying levels of smart meter penetration and infrastructure for data storage and exchange and third-party data access to the energy Data Exchange Platforms (DEPs). The authors analysed third-party data access methods, outlined their shortcomings, and ultimately proposed the third-party data access process that is the most efficient, automatic and unbureaucratic. The implementation of the proposed approach will allow third parties, with the consent of consumers, to easily access smart meter data and effectively provide consumers with various services related to energy audit and energy saving.

关键词：

来源：评论

学校读者我要写书评

暂无评论

A Novel Parabolic Equation of the Conductor Curve in an Inclined Span Based on a Known x–coordinate of the Low Point of the Conductor

A Novel Parabolic Equation of the Conductor Curve in an Incl...

引用

International IEEE Conference and Workshop: Óbuda on electrical and power engineering (CANDO-EPE)

作者： Alen Hatibovic Péter Kádár György Morva Department of Electrical Engineering Renewable Energy Utilization Optimum Solar Ltd Budapest Hungary Department of Power Systems Alternative Energy Technologies Faculty of El. Eng Óbuda University Budapest Hungary Kálmán Kandó Faculty of El. Engineering Institute of Power Engineering Budapest Hungary

ISBN: (纸本)9798350346206

In the frame of the parabola-based sag-tension calculation for overhead line design, the necessary data for the derivation of the equation of the conductor curve in a span are the maximum sag, the coordinates of the support points and the span length. Naturally, the conductor sag changes with the temperature and so does the conductor curve. Thus, for different conductor temperatures, the equation of the conductor curve is also different. Oppositely to the common method for the derivation of the equation of the parabolic conductor curve using the maximum sag as the main input datum, this paper shows how the latter can be substituted by the x-coordinate of the low point of the conductor when it is a known or defined datum. The presented method is developed especially for the application in the case of already built i.e. existing overhead lines. The novel equation of the parabolic conductor curve is usable in inclined spans, while in level spans it is not. It is appropriately presented through a suitable numerical example.

关键词： power engineering Conferences Conductors Mathematical models

来源：评论

学校读者我要写书评

暂无评论

Current source rectifier for high-power water electrolysers: analysis and sizing

Current source rectifier for high-power water electrolysers:...

引用

13th International Conference on power Electronics, Machines and Drives (PEMD 2024)

作者： Álvaro Iribarren Ernesto L. Barrios Julián Balda Marco Rivera Patrick Wheeler Alfredo Ursúa Pablo Sanchis Department of Electrical Electronic and Communications Engineering Institute of Smart Cities Public University of Navarre (UPNA) Edificio de los Pinos Campus Arrosadia s/n 31006 Pamplona Spain Department of Solar PV Systems – Solar PV BESS & Green H2 Ingeteam Power Technology S.A. – Energy 31621 Sarriguren Spain Power Electronics Machines and Control (PEMC) Research Group Department of Electrical and Electronic Engineering Faculty of Engineering University of Nottingham NG7 2RD Nottingham UK

ISBN: (数字)9781837241217

Current source rectifiers offer advantageous features that make them attractive solutions for powering grid-connected high-power electrolysers. Being a single-stage step-down rectifier topology is particularly well-suited for the low voltage, high current characteristics of high-power electrolysers. This paper investigates the impact of electrolyser electrical behaviour on the operation of current source rectifiers and provides practical guidelines for their optimal sizing, aiming to enhance power quality while minimizing overall system costs. Requirements for both grid and electrolyser sides are defined, and key considerations for sizing converter elements such as semiconductors, input LC filter, output dc inductance, and power transformer are discussed. Through optimal sizing of these components, it is demonstrated that high switching frequency IGBT-based current source rectifiers can emerge as cost-effective solutions for industrial high-power electrolyser applications.

关键词：

来源：评论

学校读者我要写书评

暂无评论

The Effect of Source Data on Graphical Pentagons DGA Methods for Detecting Incipient Faults in power Transformers

The Effect of Source Data on Graphical Pentagons DGA Methods...

引用

Decision Aid Sciences and Application (DASA), International Conference on

作者： Abdelmoumene Hechifa Abdelaziz Lakehal Chouaib Labiod Arnaud Nanfak Diaa-Eldin A. Mansour Djaballah Said Department of Mechanical engineering August 20 1955 LGMM Laboratory Skikda University Skikda Algeria Laboratoire de Recherche en Électromécanique et Sûreté deFonctionnement LRESFlaboratory Mohamed Chérif Messaadia University Souk-Ahras Algeria Electrical Engineering Department Laboratory of Energy Systems Modeling (LMSE) Faculty of Technology University of El Oued El Oued Algeria Laboratory of Energy Materials Modelling and Methods National Higher Polytechnic School of Douala University of Douala Douala Cameroon Department of Electrical Power Engineering Faculty of Engineering Egypt-Japan University of Science and Technology (E-JUST) Alexandria Egypt Department of Electrical Power and Machines Engineering Faculty of Engineering Tanta University Tanta Egypt Mechanical Engineering Laboratory LGEM University of Biskra Biskra Algeria

Detecting power transformer faults at an early stage is crucial for ensuring the safety and uninterrupted operation of electrical systems. Dissolved Gas Analysis (DGA) serves as a valuable strategy for diagnosing faults in oil-filled transformers. Oil plays a vital role in transformer operation, serving as both a cooling and insulation medium. It also acts as an indicator for assessing thermal and electrical stresses within the transformer by analyzing the composition of dissolved gases in the oil. In this paper, the graphical techniques of the Pentagons for each of Duval Pentagon method and Mansour Pentagon method were discussed at different data sources. The dataset comprises 357 samples, with 117 samples sourced from IEC TC 10 data and 240 samples obtained from Egyptian laboratories. The Duval Pentagon method demonstrates superior performance, achieving a diagnostic accuracy of 69.23% when applied to the IEC TC 10 data. Conversely, the Mansour Pentagon method outperforms the Duval Pentagon method with a diagnostic accuracy of 68.75% when applied to the Egyptian laboratory data. This paper is a proposal to find a new graphical method that adapts to the variables of the source data. The proposed approach aims to address the challenges posed by diverse data sources and provide a more comprehensive and adaptable framework for transformer fault diagnosis.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Comparison of Various PMSM Rotor Topologies for High-speed Drives in Automotive Applications

引用

Transportation Research Procedia 2021年 55卷 995-1002页

作者： Michal Kovacik Pavol Rafajdus Stefan Kocan Department of Power Systems and Electric Drives Faculty of Electrical Engineering and Information Technology University of Zilina Univerzitna 1 010 26 Zilina Slovakia

This paper describes comparative analysis of different rotor topologies of cylindrical type high-speed PMSM for automotive applications. Utilizing Ansys software, 4 types of PMSM with different rotor topologies are modeled with the same stator of 6 slots / 4 poles configuration, same rotor diameter and air gap length. Electromagnetic performances of these topologies are analyzed with FEA method approach. Analysis provides comparison of synchronous inductances, developed torque, current consumptions, output powers, core losses and efficiencies of analyzed topologies. Obtained results from this comparative analysis will be decisive for election of appropriate PMSM topology, which will then be further analyzed for mechanical and thermal properties. Final design PMSM is aimed to be capable of reaching 100 000 rpm with low losses and satisfactory efficiency, output power and torque. It is to be operated from vehicle onboard grid of DC 48 V via DC/3f-AC inverter.

关键词： automotive high-speed PMSM FEA

来源：评论

学校读者我要写书评

暂无评论

Extended Prediction Horizon Multi-objective FSMPC without Weighting Factors

Extended Prediction Horizon Multi-objective FSMPC without We...

引用

Workshop on Predictive Control of electrical Drives and power Electronics (PRECEDE)

作者： Haotian Xie Fengxiang Wang José Rodriguez Ralph Kennel Marcelo Lobo Heldwein Chair of High-Power Converter Systems Technical University of Munich Munich Germany National Local Joint Engineeering Research Center for Electrical Drives and Power Electronics Quanzhou Institute of Equipment Manufacturing Haixi Institute Chinese Academy of Sciences Jinjiang China Faculty of Engineering Universidad San Sebastian Santiago Chile

Extended prediction horizon FS-MPC shows its merits of a low current harmonic distortion per switching frequency. However, the weighting factors are hard to be optimized in an extended prediction horizon FS-MPC with more involved control objectives. A multi-objective FS-MPC with a longer prediction horizon without the involvement of any weighting factors is proposed in this paper. The descriptions of control plant and FS-MPC with a prediction horizon of 3 are presented. The control objectives, torque, flux and switching frequency are optimized in the cost function. Therefore, there are two weighting factors to be optimized. To cope with the abovementioned issue, a ranking evaluation approach is proposed for weighting factor optimization in the proposed FSMPC method with an extended horizon to obtain two possible vectors, which are optimized in the next prediction horizon. The vector with a minimal ranking value is selected as the optimal. The simulation results of the proposed method on a pair of 2. 2kW induction machine drives are evaluated and compared.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Comparisons of FCS-MPC schemes and conventional PI-based methods for electrical drive systems

Comparisons of FCS-MPC schemes and conventional PI-based met...

引用

Workshop on Predictive Control of electrical Drives and power Electronics (PRECEDE)

作者： Haotian Xie Ralph Kennel Fengxiang Wang Marcelo Lobo Heldwein José Rodriguez Chair of High-Power Converter Systems Technical University of Munich Munich Germany National Local Joint Engineeering Research Center for Electrical Drives and Power Electronics Quanzhou Institute of Equipment Manufacturing Haixi Institute Chinese Academy of Sciences Jinjiang China Faculty of Engineering Universidad San Sebastian Santiago Chile

Model predictive control (MPC) has gained increasingly popularities in the field of power electronics and electrical drive systems. In MPC, the control objectives are evaluated in the cost function within a certain number of prediction horizon. Compared with conventional PI-based methods, MPC shows the merits of simple concept, straightforward implementation, fast dynamic response, flexible inclusion of constraints and ability to handle multi-objective nonlinear system. Finite control set MPC (FCS-MPC) is one of the common-used MPC schemes. In this work, the comparisons of FCS-MPC schemes and the conventional PI-based method, e.g., direct torque control (DTC) and fiel-doriented control (FOC) are carried out. It is validated that FCS-MPC methods achieves a better control performance at both the steady state and transient state.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Robust Frequency Regulation for Dual-Area Interconnected Grids Using Hybrid Controller: A Comparative Study

Robust Frequency Regulation for Dual-Area Interconnected Gri...

引用

Smart Technologies for power, Energy and Control (STPEC), IEEE International Conference on

作者： Awadh Ba Wazir Abdullah A. Alhussainy Abdulraheem H. Alobaidi Aatif Altaf Anil Kumar Mahendra Kumar Sultan Alghamdi Department of Electrical and Computer Engineering Faculty of Engineering King Abdulaziz University Jeddah Saudi Arabia Center of Research Excellence in Renewable Energy and Power Systems King Abdulaziz University Jeddah Saudi Arabia Instrumentation and Control Engineering Department Dr. B R Ambedkar National Institute of Technology Jalandhar Jalandhar Punjab India

This paper introduces a robust controller designed for load frequency control in a dual-area integrated power grid. Here, the suggested controller is a blend of a fuzzy logic controller with an integral controller. The parameters of the integral controller and frequency bias settings are optimized to enhance the dynamic response of the proposed controller. To attain this, three distinct optimization algorithms are employed, i.e., genetic algorithm, simulated annealing, and pattern search. A new objective function using settling time, settling-max, and settling-min with a suitable weight factor is used to improve the parameters estimation process. A comparative analysis is performed using the proposed approach and classical-I controller under two cases considering several load disturbance scenarios. Furthermore, the suggested hybrid controller is evaluated and compared with similar models in the literature. As expected, the proposed controller exhibits superior performance.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Lifetime Estimation of Operational Aged Transformers with New Fuzzy Logic Algorithms 22

Lifetime Estimation of Operational Aged Transformers with Ne...

引用

22nd International Symposium on High Voltage engineering, ISH 2021

作者： Schreiter, Sebastian Kinkeldey, Tobias Lohmeye, Holger Werle, Peter Münster, Tobias HTWK Leipzig Leipzig University of Applied Science Faculty of Electrical Engineering and Information Technology Department of Electric Power Systems Germany FTZ Leipzig e.V. Research and Transfer Centre at the HTWK Leipzig Germany Leibniz Universität Hannover Institute of Electric Power Systems Division of High Voltage Engineering and Asset Management Schering-Institute Hannover Germany Hitachi ABB Power Grids Transformer Service Centre Halle Oil Lab Halle Germany

ISBN: (纸本)9781839536052

The ongoing aging of transformers in the power supply networks represents an increasing technical and financial risk for operators. Therefore, the knowledge of the aging condition of the asset is of elementary interest in order to be able to plan replacement and exchange measures in a time- and cost-optimized manner. Since the end of life of transformers is determined by the aging of the solid insulation, the DP value is considered to be an indicator of the aging of the entire asset. However, this can only be determined directly by paper sampling with the active part accessible, which limits its practicality. Therefore, in the past, the paper condition was estimated by means of furan derivatives. Another approach is to estimate the DP value using computer-aided methods based on other insulating oil characteristics. In this paper, the results of both estimation methods are compared with the actual DP values of real transformers to investigate the validity of this new approach. Additionally the measured furan concentration will be compared to the measured DP value from more than 50 operationally aged transformers. © 2021 The Institution of engineering and Technology.

关键词： Fuzzy logic

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：