2019 IEEE 60th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)最新文献_第3页

Promoting of Lifelong Learning in Engineering 促进工程终身学习

2019 IEEE 60th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2019-10-01 DOI: 10.1109/RTUCON48111.2019.8982289

K. Berzina, N. Kunicina, A. Žiravecka, J. Caiko

引用次数: 3

The Technique for Accelerated Evaluation of the Instantaneous Values of Power System Performance Parameters 电力系统性能参数瞬时值的加速评估技术

2019 IEEE 60th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2019-10-01 DOI: 10.1109/RTUCON48111.2019.8982315

D. Bliznyuk, P. Kovalenko, V. Mukhin

引用次数: 2

Combined Active Frequency Drift Islanding Detection Method for NZEB Energy Router NZEB能量路由器组合有源漂移岛检测方法

2019 IEEE 60th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2019-10-01 DOI: 10.1109/RTUCON48111.2019.8982258

T. Jalakas, I. Roasto, Mahdiyyeh Najafzadeh

引用次数: 4

Development of entrepreneurship skills for Innovation driven career in Adaptronics 为Adaptronics的创新驱动型职业发展创业技能

2019 IEEE 60th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2019-10-01 DOI: 10.1109/RTUCON48111.2019.8982304

N. Kunicina, A. Zabasta, A. Žiravecka, L. Ribickis, I. Bilić

{"title":"Development of entrepreneurship skills for Innovation driven career in Adaptronics","authors":"N. Kunicina, A. Zabasta, A. Žiravecka, L. Ribickis, I. Bilić","doi":"10.1109/RTUCON48111.2019.8982304","DOIUrl":"https://doi.org/10.1109/RTUCON48111.2019.8982304","url":null,"abstract":"The successful career of graduates, which focus on development and maintenance of adaptive systems, apart to the main background in electrical engineering, requires strong abilities to work with users of developed device, entrepreneurship skills, knowledge of marketing and ability to develop market oriented product. This paper demonstrates the approach, which encourages creative skills to build the prototypes of new products, motivates students to create new ideas for start-ups, and allows to develop entrepreneurship skills during the education process. The case study of the Riga Technical University RTU master level program “Adaptronics” concerning the development of entrepreneurship skills is described in this work. The case study of student’ survey at the University of Split is also discussed in the paper. The survey results demonstrate the students' level of entrepreneurial orientation in correlation with their working experience and their perception about opportunity to find a job after graduating the university.","PeriodicalId":317349,"journal":{"name":"2019 IEEE 60th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125228310","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

Some Practical Aspects of Electric Power Consumption Time Series Analysis 电力消耗时间序列分析的一些实用问题

2019 IEEE 60th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2019-10-01 DOI: 10.1109/RTUCON48111.2019.8982264

K. Sinitsyna, A. Petrochenkov, B. Krause

引用次数: 1

IoT Solution Approach for Energy Consumption Reduction in Buildings: Part 4. Mathematical Model and Experiments for Cooling Energy Consumption 降低建筑能耗的物联网解决方案:第4部分。制冷能耗的数学模型与实验

2019 IEEE 60th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2019-10-01 DOI: 10.1109/RTUCON48111.2019.8982307

A. Avotiņš, Andrejs Podgornovs, P. Apse-Apsitis, Armands Senfelds, E. Dzelzītis, Kristaps Zadeiks

{"title":"IoT Solution Approach for Energy Consumption Reduction in Buildings: Part 4. Mathematical Model and Experiments for Cooling Energy Consumption","authors":"A. Avotiņš, Andrejs Podgornovs, P. Apse-Apsitis, Armands Senfelds, E. Dzelzītis, Kristaps Zadeiks","doi":"10.1109/RTUCON48111.2019.8982307","DOIUrl":"https://doi.org/10.1109/RTUCON48111.2019.8982307","url":null,"abstract":"Nowadays it is possible to obtain almost real-time measurement data using various IoT solutions, which can be used in order to control building management systems like heating, ventilation, cooling equipment (chiller), lighting. Nevertheless there are limited number of solutions allowing to control it by using hourly data (like electrical power consumption, room temperatures, humidity, CO2 levels, heat energy, ventilation system pressures, outdoor climate data). This paper deals with 6R2C mathematical model development, that uses real-time data obtained from IoT sensors, practical measurements and experimental testing results achieved during summer period, when the cooling energy is needed. Measurements and experiments were conducted for certain building zone, which is PN4 ventilation zone for the most electrical energy consuming HVAC system of the building, located also in the south side and having most impact by the sun radiation. Using simplified modeling and input data approach, CV(RMSE) estimation of the model for daily consumption for the period from 8 August to 8 September resulted in a value of 28.62%. In monthly period average energy consumption error (single month) is 0.14%.","PeriodicalId":317349,"journal":{"name":"2019 IEEE 60th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127157106","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

High voltage, high frequency, high bandwidth sweeping arbitrary waveform challenge: Overall design concept 高电压，高频率，高带宽扫任意波形挑战:整体设计概念

2019 IEEE 60th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2019-10-01 DOI: 10.1109/RTUCON48111.2019.8982322

P. Apse-Apsitis, I. Steiks, R. Porins, O. Meusel, M. Droba, D. Ondreka, K. Schulte-Ulrichs

引用次数: 1

A study of the retail electricity prices increasing trend in European retail electricity markets 欧洲零售电力市场零售电价上涨趋势研究

2019 IEEE 60th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2019-10-01 DOI: 10.1109/RTUCON48111.2019.8982292

A. Ktena, G. Panagakis, J. Hivziefendic

{"title":"A study of the retail electricity prices increasing trend in European retail electricity markets","authors":"A. Ktena, G. Panagakis, J. Hivziefendic","doi":"10.1109/RTUCON48111.2019.8982292","DOIUrl":"https://doi.org/10.1109/RTUCON48111.2019.8982292","url":null,"abstract":"The ascending trend in retail electricity prices since the first energy package is often blamed on the market reforms and the cost of a low carbon economy. The present study analyzes EU-28 statistical data on retail prices for the medium households and industries, for the years 2008–2017, a period of economic slowdown. We focus especially on six countries, Austria, Denmark, Germany, Greece, Latvia and Spain and examine retail prices against the degree of renewable energy sources (RES) penetration and the market liberalization in each country. We also examine the cases of three Western Balkan countries that still have a very low degree of liberalization. The increasing percentage of RES in electricity generation, the number of retailers and the market share of the main retailer are analyzed with respect to the retail electricity price for the period studied. In spite of the different specifics of each country's economy, there are certain common trends. The price increase has been found to be the result of levies and taxes, rather than the energy cost, with the burden carried mostly by households. In the cases studied here, the increase correlates with either the increase in RES or increased competition or both depending on the market structures in place during the examined period and the maturity and performance of the measures towards a liberalized electricity market and a low carbon economy.","PeriodicalId":317349,"journal":{"name":"2019 IEEE 60th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134174874","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

Analytical Model for Supercapacitor Sizing as Part of a Hybrid Power Supply 混合电源中超级电容器尺寸的分析模型

2019 IEEE 60th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2019-10-01 DOI: 10.1109/RTUCON48111.2019.8982362

Dimitar D. Arnaudov, V. Dimitrov, P. Punov

引用次数: 0

Determination of the total cost of active power losses and methods to reduce power losses in low-voltage distribution networks 低压配电网有功损耗总成本的确定及降低有功损耗的方法

2019 IEEE 60th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON) Pub Date : 2019-10-01 DOI: 10.1109/RTUCON48111.2019.8982319

J. Armas, A. Ivanov

{"title":"Determination of the total cost of active power losses and methods to reduce power losses in low-voltage distribution networks","authors":"J. Armas, A. Ivanov","doi":"10.1109/RTUCON48111.2019.8982319","DOIUrl":"https://doi.org/10.1109/RTUCON48111.2019.8982319","url":null,"abstract":"Accurate determination of power losses at the design stage is very important for optimizing the network structure, choosing the places and number of substations and cable cross-sections. Losses in low-voltage distribution networks for different sources account for 2-4% of the total energy consumption. Reducing losses leads to lower CO2 emissions. This paper proposes a methodology for comparative calculation of losses in low-voltage distribution networks to select economically optimal network configurations and cable cross-sections at the design stage. The paper assesses the main factors that contribute to reduce losses of active power. The software used allows the designer to create various versions of network models for their comparative analysis and calculate the losses of active power in the cables, taking into account the proximity and skin effects. As a result the designer gets all the necessary parameters to select the final, economically optimal design of a network. These parameters are the predicted total cost of losses for the estimated operating life for each variant of network and the difference in the cost of building a network for each variant relative to the base variant. The purpose of the present publication is to introduce a practical method to be used in the MeteorSpec PRO software when calculating power losses in low-voltage distribution networks (in symmetrical three-phase low-voltage radial TN-systems), considering the specific characteristics of these networks. The proposed technique is based on determinations of active energy losses, which are calculated by load curves of consumers taking into account actual operating temperatures of conductors.","PeriodicalId":317349,"journal":{"name":"2019 IEEE 60th International Scientific Conference on Power and Electrical Engineering of Riga Technical University (RTUCON)","volume":"360 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132347028","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