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2017 International Conference on Electromechanical and Power Systems (SIELMEN)最新文献

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Automatic temperature control in 3D printing of the polymer details 自动温度控制3D打印聚合物的细节
2017 International Conference on Electromechanical and Power Systems (SIELMEN) Pub Date : 2017-10-01 DOI: 10.1109/SIELMEN.2017.8123287
I. Cojuhari, I. Fiodorov, B. Izvoreanu, Dumitru Moraru, Sorin Botnaru
{"title":"Automatic temperature control in 3D printing of the polymer details","authors":"I. Cojuhari, I. Fiodorov, B. Izvoreanu, Dumitru Moraru, Sorin Botnaru","doi":"10.1109/SIELMEN.2017.8123287","DOIUrl":"https://doi.org/10.1109/SIELMEN.2017.8123287","url":null,"abstract":"In this paper it is designed the automatic system for formation the small pieces from polymer, based on the principle of thermoplastic extrusion. The system has a goal to form pieces with a maximum volume of 20535 mm3. Arduino Mega 2560 and an extension of Ramps 1.4 were used as the control module, and the control of the stepper motors is done by the A4988 drivers. The mathematical model of the thermal process in the extruder was identified and it was synthesized the PID control algorithm based on the maximum stability degree method and by the auto-tuning regime that is implemented in the controller.","PeriodicalId":403279,"journal":{"name":"2017 International Conference on Electromechanical and Power Systems (SIELMEN)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129358114","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
Simple control strategy of the series filter within a unified power quality conditioner 统一电能质量调节器内串联滤波器的简单控制策略
2017 International Conference on Electromechanical and Power Systems (SIELMEN) Pub Date : 2017-10-01 DOI: 10.1109/SIELMEN.2017.8123362
S. Ivanov, M. Ciontu, D. Sacerdoțianu, A. Radu
{"title":"Simple control strategy of the series filter within a unified power quality conditioner","authors":"S. Ivanov, M. Ciontu, D. Sacerdoțianu, A. Radu","doi":"10.1109/SIELMEN.2017.8123362","DOIUrl":"https://doi.org/10.1109/SIELMEN.2017.8123362","url":null,"abstract":"Unified power quality conditioner (UPQC) consists of combined shunt and series active power filters which acts both on the source side and on the load side for improving the power quality. The paper presents a simple method for controlling the series filter under unbalanced and distorted load conditions. The proposed control method is based on a three phase locked loop (PLL). For giving a complete approach of the UPQC, the control of the shunt filter is also presented. The whole system is then simulated. The results emphases on one hand a specific starting procedure and on the other hand the corrections of the power quality on the source side, by comparing the power factor and current THD before and after use of the UPQC. The simulation was performed by using the Matlab-Simulink environment.","PeriodicalId":403279,"journal":{"name":"2017 International Conference on Electromechanical and Power Systems (SIELMEN)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130526274","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: 3
Electromagnetic actuator with ferromagnetic disk and magnetic spring suspension 电磁执行器采用铁磁盘和磁弹簧悬挂
2017 International Conference on Electromechanical and Power Systems (SIELMEN) Pub Date : 2017-10-01 DOI: 10.1109/SIELMEN.2017.8123354
Nicu-Bogdan Gîrtan, R. Olaru
{"title":"Electromagnetic actuator with ferromagnetic disk and magnetic spring suspension","authors":"Nicu-Bogdan Gîrtan, R. Olaru","doi":"10.1109/SIELMEN.2017.8123354","DOIUrl":"https://doi.org/10.1109/SIELMEN.2017.8123354","url":null,"abstract":"The paper presents a new type of electromagnetic actuator based on the attraction forces generated by a pair of electromagnets over a ferromagnetic disk, which uses a differential magnetic spring to generate the return forces. The paper also shows some functional characteristics of this device, obtained by numerical simulation with COMSOL Multiphysics. The proposed actuator has been experimentally tested.","PeriodicalId":403279,"journal":{"name":"2017 International Conference on Electromechanical and Power Systems (SIELMEN)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132373015","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
Luminance measurements for light pollution assessment 光污染评价的亮度测量
2017 International Conference on Electromechanical and Power Systems (SIELMEN) Pub Date : 2017-10-01 DOI: 10.1109/SIELMEN.2017.8123368
C. Galatanu
{"title":"Luminance measurements for light pollution assessment","authors":"C. Galatanu","doi":"10.1109/SIELMEN.2017.8123368","DOIUrl":"https://doi.org/10.1109/SIELMEN.2017.8123368","url":null,"abstract":"Light pollution is a phenomenon that needs to be closely monitored. There are currently many SQMs (Sky Quality Meters) that monitor the visibility of stars, but the method has the disadvantage that it does not eliminate the effect of humidity, clouds or aerosols. Another global assessment method uses ISS images that provide detailed information but cannot identify and locate the pollution sources. There is a need for a method accessible to the general public, which can measures the sources of light pollution. Using DSLR to measure luminance is a solution. There is information in the literature about the calibration of these devices to measure luminance, but the method nevertheless did not get wide spread. An identified problem is the photo camera's constant, which is shown to be, in fact, a conversion function. To overcome this limitation, the author presents the practical details that allow the rapid calibration of the DSLR using a single luminance standard for the entire measurement range. For practical measurements, it is indicated how the exposure latitude should be interpreted for extreme values of luminance. For the interpretation of the results, one uses general software environments, like MATLAB. The quantitative interpretation of the luminous field is thus a powerful and useful tool, far superior to the qualitative assessment currently possible. This is a change in strategy, from measuring the effect to measuring the sources of light pollution.","PeriodicalId":403279,"journal":{"name":"2017 International Conference on Electromechanical and Power Systems (SIELMEN)","volume":"26 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120872520","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: 9
Faults diagnosis in transport and distribution lines based on the analytic model 基于解析模型的输配电线路故障诊断
2017 International Conference on Electromechanical and Power Systems (SIELMEN) Pub Date : 2017-10-01 DOI: 10.1109/SIELMEN.2017.8123400
V. Ivanov, M. Brojboiu, S. Ivanov
{"title":"Faults diagnosis in transport and distribution lines based on the analytic model","authors":"V. Ivanov, M. Brojboiu, S. Ivanov","doi":"10.1109/SIELMEN.2017.8123400","DOIUrl":"https://doi.org/10.1109/SIELMEN.2017.8123400","url":null,"abstract":"The method based on analytic models can be used when the system behavior is compared with the results of the mathematical model which reproduces the system in normal operation conditions. The paper applies the diagnosis method based on the analytic model by investigating the waveforms of the currents and voltages specific to a transport and distribution line when interruption fault occurs. For identifying the fault, the waveforms corresponding to different faults are stored in an information database and compared with the ones corresponding to the normal operation. The paper presents a microcontroller based system used to control switching of interruption fault for transport and distribution lines.","PeriodicalId":403279,"journal":{"name":"2017 International Conference on Electromechanical and Power Systems (SIELMEN)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123437355","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
About a Matlab graphical user interface to analyze stresses during the transient regimes in the high voltage substations 介绍了一个Matlab图形用户界面，用于分析高压变电站暂态过程中的应力
2017 International Conference on Electromechanical and Power Systems (SIELMEN) Pub Date : 2017-10-01 DOI: 10.1109/SIELMEN.2017.8123308
M. Brojboiu, V. Ivanov
{"title":"About a Matlab graphical user interface to analyze stresses during the transient regimes in the high voltage substations","authors":"M. Brojboiu, V. Ivanov","doi":"10.1109/SIELMEN.2017.8123308","DOIUrl":"https://doi.org/10.1109/SIELMEN.2017.8123308","url":null,"abstract":"In this paper is presented a Matlab graphical user interface useful to compute the thermal and dielectric stresses which means the parameters computation of the short circuit currents or transient recovery voltages which appear during the fault regimes in the high voltage networks. The analysis of the electrical stresses is carried out for the high voltage substations from ST Craiova. The Matlab GUI is developed starting from the automatic computation program which was realized within the research contract with the Transelectrica SA Branch Craiova [1]. The results obtained within this contract were previously presented in the [2], [3], [4], [5]. The computation algorithm is based on the references in the field [6…12]. The GUI can be used for any other high voltage substation whose rated parameters are known.","PeriodicalId":403279,"journal":{"name":"2017 International Conference on Electromechanical and Power Systems (SIELMEN)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121668400","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
Three-dimensional models' usage in courses placed on moodle platform 三维模型在moodle平台课程中的应用
2017 International Conference on Electromechanical and Power Systems (SIELMEN) Pub Date : 2017-10-01 DOI: 10.1109/SIELMEN.2017.8123347
S. Angela, D. Sergiu, Vîrlan Petru
{"title":"Three-dimensional models' usage in courses placed on moodle platform","authors":"S. Angela, D. Sergiu, Vîrlan Petru","doi":"10.1109/SIELMEN.2017.8123347","DOIUrl":"https://doi.org/10.1109/SIELMEN.2017.8123347","url":null,"abstract":"One of the biggest benefits of virtual education is the ability to easily explain complex processes and principles using animations and interactive 3D models. The purpose of this study is to determine which 3D software product should be used for the display of interactive graphic engineering documents, so that the visualization and manipulation of 3D models provide useful support to students of industrial engineering. In order to create these didactic materials a multitude of tools can be used: AutoCAD, SolidWorks, Inventor, Adobe Acrobat Pro etc. This paper proposes some examples of the above-mentioned didactic materials, including animations and interactive 3D models used in Moodle.","PeriodicalId":403279,"journal":{"name":"2017 International Conference on Electromechanical and Power Systems (SIELMEN)","volume":"147 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121969176","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
Optimizing the design of an asynchronous motor used in the drive system of a multiple unit train 多机组列车驱动系统中异步电动机的优化设计
2017 International Conference on Electromechanical and Power Systems (SIELMEN) Pub Date : 2017-10-01 DOI: 10.1109/SIELMEN.2017.8123319
Presură Raluca-Cristina, Vlad Ion, Nicolae Marian-Ştefan, Nicolae Petre-Marian
{"title":"Optimizing the design of an asynchronous motor used in the drive system of a multiple unit train","authors":"Presură Raluca-Cristina, Vlad Ion, Nicolae Marian-Ştefan, Nicolae Petre-Marian","doi":"10.1109/SIELMEN.2017.8123319","DOIUrl":"https://doi.org/10.1109/SIELMEN.2017.8123319","url":null,"abstract":"Some aspects concerning the optimal design and sizing of an asynchronous traction motor are described. The motor must be integrated with a static converter in the traction system of a locomotive driving a multiple unit train. This drive system is aimed for light power applications, and the parameters necessary for the analysis of the regenerative braking system are also accounted for. An algorithm for the optimal design of the asynchronous motor is developed, considering the main variables as the electromagnetic stresses. The motor dimensions are computed starting from the desired parameter values. The optimization algorithm is implemented in Mathcad, any parameter modification leading to a new motor model.","PeriodicalId":403279,"journal":{"name":"2017 International Conference on Electromechanical and Power Systems (SIELMEN)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134565226","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
Fuzzy control of cooling water pumps related to a power plant 某电厂冷却水泵的模糊控制
2017 International Conference on Electromechanical and Power Systems (SIELMEN) Pub Date : 2017-10-01 DOI: 10.1109/SIELMEN.2017.8123382
D. Popescu, R. Dinu, C. Bratu
{"title":"Fuzzy control of cooling water pumps related to a power plant","authors":"D. Popescu, R. Dinu, C. Bratu","doi":"10.1109/SIELMEN.2017.8123382","DOIUrl":"https://doi.org/10.1109/SIELMEN.2017.8123382","url":null,"abstract":"Optimum operation of cooling water systems means minimum use of water while maintaining proper temperatures to limit algae growth and cool all equipment properly. Combined application of inverters and cooling water pumps brings us not only good energy-saving benefits but some new problems, such as inverters configuration and overload etc. The objective of this paper is to find a suitable solution by designing the intelligent controller for frequency controlling of cooling Water system, such as fuzzy logic and to investigate the controllability of this model under various changes of static head system. Based on the mathmatical model of puming systems with or without static head, the paper discusses some issues in detail, such as pressure and flow rate regulation. In fuzzy logic control, Mamdani model is used to control the system. The suggested system uses the concept of fuzzy logic system where the fuzzy rule base consists of a collection of fuzzy IF-THEN rules. The fuzzy inference engine uses these fuzzy IF-THEN rules to determine a mapping from fuzzy sets in the input universe of discourse to fuzzy sets in the output universe of discourse based on fuzzy logic principles. The fuzzy model can be successfully used for the variable speed control of hydraulic systems, when the Affinity Lows not observe exactly.","PeriodicalId":403279,"journal":{"name":"2017 International Conference on Electromechanical and Power Systems (SIELMEN)","volume":"140 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131955516","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: 5
A LoRaWAN: Long range wide area networks study A LoRaWAN:远程广域网研究
2017 International Conference on Electromechanical and Power Systems (SIELMEN) Pub Date : 2017-10-01 DOI: 10.1109/SIELMEN.2017.8123360
A. Lavric, V. Popa
{"title":"A LoRaWAN: Long range wide area networks study","authors":"A. Lavric, V. Popa","doi":"10.1109/SIELMEN.2017.8123360","DOIUrl":"https://doi.org/10.1109/SIELMEN.2017.8123360","url":null,"abstract":"The LPWAN (Low Power Wide Area Network) networks are the evolution of wireless sensor networks directed to the IoT (Internet of Things) concept, which entails sensor connectivity to the Internet. This paper presents a performance evaluation of the LoRa wireless networks. LoRa technology represents a possible solution to the problems of the IoT (Internet of Things) concept. The used frequency bands belong to the unlicensed ISM (Industrial, Scientific and Medical) frequency band. Thus, the parameters analyzed are: ToA (Time on Air), the bitrate and the Spreading Factor (SF) influence on performance level. From the obtained results, can be observed that with the increase of the SF parameter the time that the LoRa communication packet spends in the air is increased. If the bandwidth of the communication channel is increased the ToA parameter will decrease significantly.","PeriodicalId":403279,"journal":{"name":"2017 International Conference on Electromechanical and Power Systems (SIELMEN)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134119593","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: 46
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