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ACTUALITĂŢI ŞI PERSPECTIVE ÎN DOMENIUL MAŞINILOR ELECTRICE (ELECTRIC MACHINES, MATERIALS AND DRIVES - PRESENT AND TRENDS)最新文献

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PREDICTIVE MAINTENANCE OF LOW VOLTAGE ELECTRICAL INSTALLATIONS THROUGH THERMAL INSPECTION INSPECTION 通过热检查对低压电气装置进行预测性维护
ACTUALITĂŢI ŞI PERSPECTIVE ÎN DOMENIUL MAŞINILOR ELECTRICE (ELECTRIC MACHINES, MATERIALS AND DRIVES - PRESENT AND TRENDS) Pub Date : 2021-11-19 DOI: 10.36801/apme.2021.1.3
E. Cazacu, Mihiata-Petronel Mateescu, Dan-Valeriu Groşanu, L. Petrescu
{"title":"PREDICTIVE MAINTENANCE OF LOW VOLTAGE ELECTRICAL INSTALLATIONS THROUGH THERMAL INSPECTION INSPECTION","authors":"E. Cazacu, Mihiata-Petronel Mateescu, Dan-Valeriu Groşanu, L. Petrescu","doi":"10.36801/apme.2021.1.3","DOIUrl":"https://doi.org/10.36801/apme.2021.1.3","url":null,"abstract":"Predictive maintenance continuously compares the trend of the values ​​of the most important functional parameters (electrical, thermal, mechanical) of an investigated equipment with their accepted limits (prescribed by the equipment manufacturer or imposed by the technological process), aiming to anticipate, analyze and even correct possible malfunctions before they manifest. This paper addresses an important part of the predictive maintenance service: the non-invasive examination by thermal inspection (IR thermography - infrared) of the thermal demands of the most important electrical equipment in power plants: transformers and drive motors. Thus, it is proposed a procedure that, using thermal maps (thermograms) of the systems analyzed in various operating regimes, to allow both a continuity of operation of technological processes served by various electrical equipment and their high efficiency.","PeriodicalId":185216,"journal":{"name":"ACTUALITĂŢI ŞI PERSPECTIVE ÎN DOMENIUL MAŞINILOR ELECTRICE (ELECTRIC MACHINES, MATERIALS AND DRIVES - PRESENT AND TRENDS)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121632991","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
SOFTWARE MODULE FOR DESIGNING THREE-PHASE ROTARY ELECTRIC MACHINE WINDERS 设计三相旋转电机绕线机的软件模块
ACTUALITĂŢI ŞI PERSPECTIVE ÎN DOMENIUL MAŞINILOR ELECTRICE (ELECTRIC MACHINES, MATERIALS AND DRIVES - PRESENT AND TRENDS) Pub Date : 2021-11-19 DOI: 10.36801/apme.2021.1.4
A. Chirilă, I. Deaconu, Adelina-Maria STĂNCESCU CÎRSTOIU, George-Adrian Baciu, Andreea-Roxana Ionescu, S. Popescu
{"title":"SOFTWARE MODULE FOR DESIGNING THREE-PHASE ROTARY ELECTRIC MACHINE WINDERS","authors":"A. Chirilă, I. Deaconu, Adelina-Maria STĂNCESCU CÎRSTOIU, George-Adrian Baciu, Andreea-Roxana Ionescu, S. Popescu","doi":"10.36801/apme.2021.1.4","DOIUrl":"https://doi.org/10.36801/apme.2021.1.4","url":null,"abstract":"The paper presents a software module developed that allows the design of windings for three-phase alternating current rotary electric machines. Starting from some initial data such as the number of pairs of poles and the number of notches per pole and phase, we obtain the diagram of the three-phase winding with diametric pitch, in a layer and integer number of notches per pole and phase. The program provides the designer in addition to the notched distribution of the coil sides, the relative distribution of the solemnity and the star of the notches. ","PeriodicalId":185216,"journal":{"name":"ACTUALITĂŢI ŞI PERSPECTIVE ÎN DOMENIUL MAŞINILOR ELECTRICE (ELECTRIC MACHINES, MATERIALS AND DRIVES - PRESENT AND TRENDS)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115440677","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
MIMO INDUCTIVE COUPLING FOR HIGH POWER WIRELESS SYSTEMS 大功率无线系统的Mimo电感耦合
ACTUALITĂŢI ŞI PERSPECTIVE ÎN DOMENIUL MAŞINILOR ELECTRICE (ELECTRIC MACHINES, MATERIALS AND DRIVES - PRESENT AND TRENDS) Pub Date : 2021-11-19 DOI: 10.36801/apme.2021.1.9
A. Marinescu, T. Tudorache, A. Vintilă
{"title":"MIMO INDUCTIVE COUPLING FOR HIGH POWER WIRELESS SYSTEMS","authors":"A. Marinescu, T. Tudorache, A. Vintilă","doi":"10.36801/apme.2021.1.9","DOIUrl":"https://doi.org/10.36801/apme.2021.1.9","url":null,"abstract":"Transmitter component of high power inductive wireless transmission systems for electric busses and trucks should be embedded in the road to ensure a free circulation of vehicles and to ensure a good mechanical resistance of the pavement, in the charging region, similar to the rest of the road. In such application, ferrites cannot be envisaged as magnetic flux concentrators due to their fragility. An adequate solution to replace the ferrites consists in using magnetic concrete as magnetic field concentrator for wireless inductive transmission system. This solution is analyzed in this paper and used for an MIMO (Multiple-Input-Multiple-Output) inductive wireless power system based on Double-D structure coils, for a transferred power of 125 kW, corresponding to the standard project SAE J2954-2, sufficient for an electric bus for 50 persons. The Finite Element analysis carried out in the paper has the objective of determining the useful and parasitic magnetic coupling parameters of the proposed inductive power transfer system","PeriodicalId":185216,"journal":{"name":"ACTUALITĂŢI ŞI PERSPECTIVE ÎN DOMENIUL MAŞINILOR ELECTRICE (ELECTRIC MACHINES, MATERIALS AND DRIVES - PRESENT AND TRENDS)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127149544","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
DIGITAL OPTIMIZATION OF THE INDUCTION OF A VARIABLE RELUCANCE SYNCHRONOUS MOTOR 变磁阻同步电机感应的数字化优化
ACTUALITĂŢI ŞI PERSPECTIVE ÎN DOMENIUL MAŞINILOR ELECTRICE (ELECTRIC MACHINES, MATERIALS AND DRIVES - PRESENT AND TRENDS) Pub Date : 2021-11-19 DOI: 10.36801/apme.2021.1.2
L. Melcescu, Stefan Oncescu, M. Mateescu
{"title":"DIGITAL OPTIMIZATION OF THE INDUCTION OF A VARIABLE RELUCANCE SYNCHRONOUS MOTOR","authors":"L. Melcescu, Stefan Oncescu, M. Mateescu","doi":"10.36801/apme.2021.1.2","DOIUrl":"https://doi.org/10.36801/apme.2021.1.2","url":null,"abstract":"\"The elaboration of norms for classifying electric motors in energy efficiency classes has stimulated research on identifying solutions to reduce losses in electric cars in terms of maintaining overall dimensions and functional performance. Variable reluctance synchronous motors are a practical solution for the super premium, IE4, and ultra premium, IE5 energy efficiency classes, in a number of applications of electric drive systems for drinking water supply, wastewater disposal, ventilation and installations in the food industry. The paper presents a study of numerical models regarding the correlation of the number of stator notches with the number of rotor field barriers of a variable reluctance synchronous motor to reduce electromagnetic torque oscillations.\"","PeriodicalId":185216,"journal":{"name":"ACTUALITĂŢI ŞI PERSPECTIVE ÎN DOMENIUL MAŞINILOR ELECTRICE (ELECTRIC MACHINES, MATERIALS AND DRIVES - PRESENT AND TRENDS)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124631943","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
SIMULATION OF THE CIRCUITS FOR ELECTRIC VEHICLES CHARGING SYSTEMS 电动汽车充电系统电路仿真
ACTUALITĂŢI ŞI PERSPECTIVE ÎN DOMENIUL MAŞINILOR ELECTRICE (ELECTRIC MACHINES, MATERIALS AND DRIVES - PRESENT AND TRENDS) Pub Date : 2021-11-19 DOI: 10.36801/apme.2021.1.8
George Onoja Idoko
{"title":"SIMULATION OF THE CIRCUITS FOR ELECTRIC VEHICLES CHARGING SYSTEMS","authors":"George Onoja Idoko","doi":"10.36801/apme.2021.1.8","DOIUrl":"https://doi.org/10.36801/apme.2021.1.8","url":null,"abstract":"This paper examines the charging system of electric vehicles and tries to explain the process involved in the operation of an electric vehicle supply equipment and the electric vehicle onboard charging module. The simulation carried out in this paper were done using the power electronics simulation software PSIM. It presents the electric schematic of the proximity pilot connection and the control pilot connection. It also presents the voltage waveforms for both connector pins.","PeriodicalId":185216,"journal":{"name":"ACTUALITĂŢI ŞI PERSPECTIVE ÎN DOMENIUL MAŞINILOR ELECTRICE (ELECTRIC MACHINES, MATERIALS AND DRIVES - PRESENT AND TRENDS)","volume":"122 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128123489","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
EVALUATION OF WIND POTENTIAL FROM A LOCATION AND LAYOUT OF THE TURBINES 从涡轮机的位置和布局来评估风力潜力
ACTUALITĂŢI ŞI PERSPECTIVE ÎN DOMENIUL MAŞINILOR ELECTRICE (ELECTRIC MACHINES, MATERIALS AND DRIVES - PRESENT AND TRENDS) Pub Date : 2021-11-19 DOI: 10.36801/apme.2021.1.10
A. Viişoreanu, Alina Viişoreanu-Răchiţeanu
{"title":"EVALUATION OF WIND POTENTIAL FROM A LOCATION AND LAYOUT OF THE TURBINES","authors":"A. Viişoreanu, Alina Viişoreanu-Răchiţeanu","doi":"10.36801/apme.2021.1.10","DOIUrl":"https://doi.org/10.36801/apme.2021.1.10","url":null,"abstract":"The paper presents a study related to the methodology for evaluating the wind potential of a chosen location, with the help of modern software solutions for analysis and specialized design. The values presented in the study show the differences in the efficiency of wind farms depending on their location, the available input data package and their accuracy being a determining factor in the quality of optimization and design of the wind farm.","PeriodicalId":185216,"journal":{"name":"ACTUALITĂŢI ŞI PERSPECTIVE ÎN DOMENIUL MAŞINILOR ELECTRICE (ELECTRIC MACHINES, MATERIALS AND DRIVES - PRESENT AND TRENDS)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126361434","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
ANALYTICAL AND NUMERICAL COMPUTATION OF ELECTRICAL RESISTANCE IN A LOW CURRENT MULTI-SPOTS METALLIC CONTACT 小电流多点金属触点电阻的解析与数值计算
ACTUALITĂŢI ŞI PERSPECTIVE ÎN DOMENIUL MAŞINILOR ELECTRICE (ELECTRIC MACHINES, MATERIALS AND DRIVES - PRESENT AND TRENDS) Pub Date : 2021-11-19 DOI: 10.36801/apme.2021.1.7
Gideon-Gwanzuwang Dankat, A. Dobre, L. Dumitran
{"title":"ANALYTICAL AND NUMERICAL COMPUTATION OF ELECTRICAL RESISTANCE IN A LOW CURRENT MULTI-SPOTS METALLIC CONTACT","authors":"Gideon-Gwanzuwang Dankat, A. Dobre, L. Dumitran","doi":"10.36801/apme.2021.1.7","DOIUrl":"https://doi.org/10.36801/apme.2021.1.7","url":null,"abstract":"The problem concerning the specific resistance of electrical contacts is still of special importance especially in high complexity electrical systems or critical operation devices such as those used in the automotive industry. A huge number of studies have been conducted over time in order to develop easy models that allow the calculation of the contact resistance at the interface between two conductors taking into account the discontinuity of the contact surface. This paper presents a study on the computation of the contact resistance of two metal conductors with analytical relations and, respectively, using numerical computation models. The aim of this paper is to examine the differences between the results obtained using analytical models and numerical model based on finite element method (FEM) in COMSOL Multiphysics.","PeriodicalId":185216,"journal":{"name":"ACTUALITĂŢI ŞI PERSPECTIVE ÎN DOMENIUL MAŞINILOR ELECTRICE (ELECTRIC MACHINES, MATERIALS AND DRIVES - PRESENT AND TRENDS)","volume":"179 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124569143","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
ANALYSIS OF ELECTRICITY QUALITY AND EFFICIENCY FOR A PHOTOVOLTAIC POWER PLANT WITH 8 MW OF POWER 某8mw光伏电站电能质量与效率分析
ACTUALITĂŢI ŞI PERSPECTIVE ÎN DOMENIUL MAŞINILOR ELECTRICE (ELECTRIC MACHINES, MATERIALS AND DRIVES - PRESENT AND TRENDS) Pub Date : 2021-11-19 DOI: 10.36801/apme.2021.1.13
Dan-Valeriu Groşanu, E. Cazacu, L. Petrescu
{"title":"ANALYSIS OF ELECTRICITY QUALITY AND EFFICIENCY FOR A PHOTOVOLTAIC POWER PLANT WITH 8 MW OF POWER","authors":"Dan-Valeriu Groşanu, E. Cazacu, L. Petrescu","doi":"10.36801/apme.2021.1.13","DOIUrl":"https://doi.org/10.36801/apme.2021.1.13","url":null,"abstract":"The paper presents a study on the quality and energy efficiency of operation for a photovoltaic plant with a power of 8 MW connected to the national energy network. The various operating regimes of the main network elements within the investigated photovoltaic plant are examined both qualitatively and quantitatively. Thus, for power transformers and medium voltage cables in the plant, the losses due to the particular regimes imposed by the load are calculated (often deforming and unbalanced regimes). In this way, opportunities are identified to increase the energy efficiency of the entire system, but also methods to improve the quality of energy delivered at the point of its connection to the local energy system.","PeriodicalId":185216,"journal":{"name":"ACTUALITĂŢI ŞI PERSPECTIVE ÎN DOMENIUL MAŞINILOR ELECTRICE (ELECTRIC MACHINES, MATERIALS AND DRIVES - PRESENT AND TRENDS)","volume":"196 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123531157","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
APPLICATION OF IOT TECHNOLOGY IN THE WATER INDUSTRY 物联网技术在水务行业的应用
ACTUALITĂŢI ŞI PERSPECTIVE ÎN DOMENIUL MAŞINILOR ELECTRICE (ELECTRIC MACHINES, MATERIALS AND DRIVES - PRESENT AND TRENDS) Pub Date : 2021-11-19 DOI: 10.36801/apme.2021.1.15
G. Smeu, C. Ghita, A. Chirilă, D. Deaconu, V. Năvrăpescu
{"title":"APPLICATION OF IOT TECHNOLOGY IN THE WATER INDUSTRY","authors":"G. Smeu, C. Ghita, A. Chirilă, D. Deaconu, V. Năvrăpescu","doi":"10.36801/apme.2021.1.15","DOIUrl":"https://doi.org/10.36801/apme.2021.1.15","url":null,"abstract":"Technological developments in the field of sensors, transducers and data transmission lead to the development of industrial automation. In the field of drinking water distribution networks, this evolution brings a significant value contribution, in the form of saving and solving the problem of water loss. IoT (Internet of Things) technology allows the development of underground monitoring networks, which allow real-time visualization of data collected from the drinking water distribution network. This paper presents examples of possible applications due to the implementation of IoT technology in the water industry.","PeriodicalId":185216,"journal":{"name":"ACTUALITĂŢI ŞI PERSPECTIVE ÎN DOMENIUL MAŞINILOR ELECTRICE (ELECTRIC MACHINES, MATERIALS AND DRIVES - PRESENT AND TRENDS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123971990","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
SOFTWARE MODULE DEDICATED TO STUDENTS FOR DESIGNING THE WRAPPING OF THREE-PHASE MONITORED ROTARY ELECTRICAL MACHINES WITH A DIAMETER STEP AND A WHOLE NUMBER OF NOTCHES ON THE POLE AND PHASE 软件模块，用于学生设计具有直径阶跃的三相监控旋转电机的封装，并在极点和相位上有完整的缺口
ACTUALITĂŢI ŞI PERSPECTIVE ÎN DOMENIUL MAŞINILOR ELECTRICE (ELECTRIC MACHINES, MATERIALS AND DRIVES - PRESENT AND TRENDS) Pub Date : 2021-11-19 DOI: 10.36801/apme.2021.1.1
A. Chirilă, I. Deaconu, Adelina-Maria STĂNCESCU CÎRSTOIU, George-Adrian Baciu, Andreea-Roxana Ionescu, S. Popescu
{"title":"SOFTWARE MODULE DEDICATED TO STUDENTS FOR DESIGNING THE WRAPPING OF THREE-PHASE MONITORED ROTARY ELECTRICAL MACHINES WITH A DIAMETER STEP AND A WHOLE NUMBER OF NOTCHES ON THE POLE AND PHASE","authors":"A. Chirilă, I. Deaconu, Adelina-Maria STĂNCESCU CÎRSTOIU, George-Adrian Baciu, Andreea-Roxana Ionescu, S. Popescu","doi":"10.36801/apme.2021.1.1","DOIUrl":"https://doi.org/10.36801/apme.2021.1.1","url":null,"abstract":"This paper presents a software module that was developed to assist in the design of the radial section geometry of the stator of a three-phase rotary electric machine. In this regard, the designer must provide values ​​regarding the main dimensions of the stator components such as: inside and outside stator diameter, width and height of the stator notch isthmus, stator notch height, stator tooth width, air gap, etc. This program allows in addition to the automatic generation of stator geometry and the distribution of the magnetic field in the air gap of the three-phase rotary electric machine in a program based on the finite element method, but also the ability to graph or save in a file with numerical data and other sizes.","PeriodicalId":185216,"journal":{"name":"ACTUALITĂŢI ŞI PERSPECTIVE ÎN DOMENIUL MAŞINILOR ELECTRICE (ELECTRIC MACHINES, MATERIALS AND DRIVES - PRESENT AND TRENDS)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125944726","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
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