发布求助
文献互助 智能选刊 最新文献

B&H Electrical Engineering最新文献

筛选
英文 中文
Analysis of Microgrid Operation in Stand-Alone Mode - Sustainable Smart Tourist Village Case Study 微电网单机运行模式分析——可持续智慧旅游村案例研究
B&H Electrical Engineering Pub Date : 2020-10-01 DOI: 10.2478/bhee-2020-0004
Haris Ahmetović, A. Bosovic, A. Merzic, M. Music
{"title":"Analysis of Microgrid Operation in Stand-Alone Mode - Sustainable Smart Tourist Village Case Study","authors":"Haris Ahmetović, A. Bosovic, A. Merzic, M. Music","doi":"10.2478/bhee-2020-0004","DOIUrl":"https://doi.org/10.2478/bhee-2020-0004","url":null,"abstract":"Abstract The aim of this paper is to analyse the stand-alone operation of the microgrid located in Umoljani, Bosnia and Herzegovina. The analysis was performed for two scenarios; one representing a summer day and the other a winter day. The analysed network was modelled using the DIgSilent PowerFactory. The Photovoltaic (PV) system, Wind Generator (WG) and battery sizing were performed using the HOMER software tool. The load data for the location was obtained from JP Elektroprivreda Bosne i Hercegovine. The analysis showed that the network was able to operate in stand-alone mode. Voltage levels were under the voltage limit defined by EN 50160. Line loading was decreased compared to loading in grid-connected mode. As given by the obtained results for the two scenarios, the consumer demand could be satisfied without the inclusion of WG. However, different input data (wind speed data measured on the location) could change the sizing of the production facilities as the results of the optimization calculations in HOMER, which needs to be considered in microgrid configuration.","PeriodicalId":236883,"journal":{"name":"B&H Electrical Engineering","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129593304","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
Topological Methods in Signal Processing 信号处理中的拓扑方法
B&H Electrical Engineering Pub Date : 2020-10-01 DOI: 10.2478/bhee-2020-0002
Ismar Volic
{"title":"Topological Methods in Signal Processing","authors":"Ismar Volic","doi":"10.2478/bhee-2020-0002","DOIUrl":"https://doi.org/10.2478/bhee-2020-0002","url":null,"abstract":"Abstract This article gives an overview of the applications of algebraic topology methods in signal processing. We explain how the notions and invariants such as (co)chain complexes and (co)homology of simplicial complexes can be used to gain insight into higher-order interactions of signals. The discussion begins with some basic ideas in classical circuits, continues with signals over graphs and simplicial complexes, and culminates with an overview of sheaf theory and the connections between sheaf cohomology and signal processing.","PeriodicalId":236883,"journal":{"name":"B&H Electrical Engineering","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124397131","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
Overview of Factorisation Methods in Kalman Filtering 卡尔曼滤波中因子分解方法综述
B&H Electrical Engineering Pub Date : 2020-10-01 DOI: 10.2478/bhee-2020-0006
Asim Vodenčarević
{"title":"Overview of Factorisation Methods in Kalman Filtering","authors":"Asim Vodenčarević","doi":"10.2478/bhee-2020-0006","DOIUrl":"https://doi.org/10.2478/bhee-2020-0006","url":null,"abstract":"Abstract The paper summarises and describes the most commonly used matrix factorisation methods applied in design of the Kalman filter in order to improve computational efficiency and avoid divergence issues caused by numerical round-off and truncation errors. Some forms of the Kalman filter are more prone to the growth of numerical error sand possible divergence than other implementations. In order to prevent the algorithm’s divergence additional processing is needed and this paper discusses pros and cons of different implementations and their numerical characteristics. Numerical issues still arise in finite word length implementations of algorithms, which frequently occur in embedded systems. This paper describes algorithms based on different factorisations such as Cholesky, U-D, SVD and their basic numerical properties.","PeriodicalId":236883,"journal":{"name":"B&H Electrical Engineering","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116982760","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
Early Streamer Emission Vs Conventional Lightning Protection Systems 早期流光发射与传统防雷系统
B&H Electrical Engineering Pub Date : 2019-12-01 DOI: 10.2478/bhee-2019-0003
Mladen S. Banjanin, Svetozar Banjanin
{"title":"Early Streamer Emission Vs Conventional Lightning Protection Systems","authors":"Mladen S. Banjanin, Svetozar Banjanin","doi":"10.2478/bhee-2019-0003","DOIUrl":"https://doi.org/10.2478/bhee-2019-0003","url":null,"abstract":"Abstract This paper analyses and compares the conventional lightning protection systems proposed in IEC 62305 to the lightning protection systems based on the application of early streamer emission lightning rods proposed in NF C 17-102. Comparison between the two approaches to the lightning protection of structures was presented, both from a technical and economic point of view. Some inconsistencies in the conventional air termination system design methods are pointed out. The critical attitude of the scientific community regarding the declared protection characteristics of the early streamer emission lightning rods is discussed.","PeriodicalId":236883,"journal":{"name":"B&H Electrical Engineering","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116934872","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
Control of Position, Velocity and Acceleration of Actuators Using Optimal State Estimation 基于最优状态估计的执行器位置、速度和加速度控制
B&H Electrical Engineering Pub Date : 2019-12-01 DOI: 10.2478/bhee-2019-0002
Asim Vodenčarević
{"title":"Control of Position, Velocity and Acceleration of Actuators Using Optimal State Estimation","authors":"Asim Vodenčarević","doi":"10.2478/bhee-2019-0002","DOIUrl":"https://doi.org/10.2478/bhee-2019-0002","url":null,"abstract":"Abstract In order to improve performance of closed loop control and achieve highly accurate reference trajectory tracking, motion controllers have to utilize the advanced control and system state estimation algorithms. Classical PID (Proportional-Integral-Derivative) controller includes calculation of derivation of a process value in order to achieve system desired performance of a system. This paper presents Kalman filter as an optimal estimation algorithm on the model of a hydraulic actuator which is equally applicable to any other application that involves calculating derivations of noisy measurements. Alternative form of Kalman filter, suitable for implementation on a PLC (Programmable Logic Controller) or any other embedded system is also presented.","PeriodicalId":236883,"journal":{"name":"B&H Electrical Engineering","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129106050","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
Optimal Distributed Generation Allocation in Distribution Systems with Non-Linear Loads Using a New Hybrid Meta-Heuristic Algorithm 基于混合启发式算法的非线性负荷配电系统分布式发电优化分配
B&H Electrical Engineering Pub Date : 2019-12-01 DOI: 10.2478/bhee-2019-0001
Miloš Milovanović, Jordan Radosavljević, Bojan Perović
{"title":"Optimal Distributed Generation Allocation in Distribution Systems with Non-Linear Loads Using a New Hybrid Meta-Heuristic Algorithm","authors":"Miloš Milovanović, Jordan Radosavljević, Bojan Perović","doi":"10.2478/bhee-2019-0001","DOIUrl":"https://doi.org/10.2478/bhee-2019-0001","url":null,"abstract":"Abstract This paper presents a new hybrid meta-heuristic algorithm based on the Phasor Particle Swarm Optimization (PPSO) and Gravitational Search Algorithm (GSA) for optimal allocation of distributed generation (DG) in distribution systems with non-linear loads. Performance of the algorithm is evaluated on the IEEE 69-bus system with the aim of reducing power losses, as well as improving voltage profile and power quality. Results, obtained using the proposed algorithm, are compared with those obtained using the original PSO, PPSO, GSA and PSOGSA algorithms. It is found that the proposed algorithm has better performance in terms of convergence speed and finding the best solutions.","PeriodicalId":236883,"journal":{"name":"B&H Electrical Engineering","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125620418","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
One Approach in Street Lighting System Reconstruction Regarding Energy Efficiency 基于节能的街道照明系统改造途径之一
B&H Electrical Engineering Pub Date : 2019-12-01 DOI: 10.2478/bhee-2019-0008
I. Ramljak, D. Bago
{"title":"One Approach in Street Lighting System Reconstruction Regarding Energy Efficiency","authors":"I. Ramljak, D. Bago","doi":"10.2478/bhee-2019-0008","DOIUrl":"https://doi.org/10.2478/bhee-2019-0008","url":null,"abstract":"Abstract This paper will present an approach for reconstruction of street lighting system regarding energy efficiency. Today, most street lighting systems are based on gas discharge lamps. LED lighting is energy efficiency lighting, which consumes less energy than lighting based on gas discharge lamps but, initial investment is still high. Methodology described in this paper includes analysis of the existing street lighting and gives guidelines for selection of equivalent LED lighting instead of the non-efficient existing one. Methodology includes economic evaluation of investment and saving ratio. This approach shortens calculation time, especially luminance calculations, due to lighting classification (on streets and areas) in clusters. This approach is especially appropriate for great systems of street lighting (city areas, cities and so on.).","PeriodicalId":236883,"journal":{"name":"B&H Electrical Engineering","volume":"142 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131758474","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
A Comprehensive Study of Shape Orientation Methods for Extraction of Phase-Preserving Fourier Descriptors 保相傅里叶描述子形状取向提取方法的综合研究
B&H Electrical Engineering Pub Date : 2019-12-01 DOI: 10.2478/bhee-2019-0009
E. Sokic, A. Salihbegovic, S. Konjicija
{"title":"A Comprehensive Study of Shape Orientation Methods for Extraction of Phase-Preserving Fourier Descriptors","authors":"E. Sokic, A. Salihbegovic, S. Konjicija","doi":"10.2478/bhee-2019-0009","DOIUrl":"https://doi.org/10.2478/bhee-2019-0009","url":null,"abstract":"Abstract The magnitude-based Fourier descriptors (FD) are frequently used in shape-based image retrieval, due to their efficiency and effectiveness. Unlike the phase-preserving Fourier descriptors, the magnitude-based Fourier descriptors are inherently invariant under rotation and starting point change, but they discard all valuable information contained in the phase of the Fourier coefficients (FCs). In order to preserve the coefficients’ phase, the orientation and starting point of the shape must be determined. In this paper, we conducted a comprehensive evaluation of different state-of-the-art methods for determining nominal shape orientation, which can be used to extract phase-preserving Fourier descriptors: the point of maximal radius, the axis of least inertia (moments), the phase of the first harmonic, the cross-correlation, the Procrustes distance and the pseudomirror points. The methods were compared in terms of sensitivity to non-rigid transformations, retrieval performance, computational complexity and computational time. The experimental results give insight into the pros and cons of all analyzed methods.","PeriodicalId":236883,"journal":{"name":"B&H Electrical Engineering","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129904810","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
Design, Development and Implementation of a Distributed Measurement System for No-Load Pressure Measurement in High Voltage Circuit Breakers 高压断路器空载压力分布式测量系统的设计、开发与实现
B&H Electrical Engineering Pub Date : 2019-12-01 DOI: 10.2478/bhee-2019-0004
E. Sokic, M. Muratovic, S. Konjicija, Amer Smajkic, S. Delić
{"title":"Design, Development and Implementation of a Distributed Measurement System for No-Load Pressure Measurement in High Voltage Circuit Breakers","authors":"E. Sokic, M. Muratovic, S. Konjicija, Amer Smajkic, S. Delić","doi":"10.2478/bhee-2019-0004","DOIUrl":"https://doi.org/10.2478/bhee-2019-0004","url":null,"abstract":"Abstract This paper presents the design and development of a distributed measurement system for measuring pressure in high voltage circuit breakers (HV CB) and other switching apparatuses, during no-load operations. Instead of using traditional pressure transducers which require significant installation space, additional data acquisition cards and often demand for complex wiring, an in-house solution of pressure measurement is proposed. The system consists of miniature sensors, accompanied with a suitable amplifier, microcontroller unit and communication module, which may be distributed inside the interrupter unit in convenient locations. Due to the fact that the measurement values are transmitted digitally, measurement noise is significantly reduced while the wiring of the system is additionally simplified. The proposed measurement system is tested using two different interrupters (HV CB and a load break switch). The experimental results have demonstrated that the developed system is applicable, accurate, cost-effective, flexible and simple to use.","PeriodicalId":236883,"journal":{"name":"B&H Electrical Engineering","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131265409","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
Impact of Static Var Compensator (SVC) Devices on Power System Losses 静态无功补偿器(SVC)对电力系统损耗的影响
B&H Electrical Engineering Pub Date : 2019-12-01 DOI: 10.2478/bhee-2019-0006
Katarina Kecojević, Ognjen Lukačević, M. Ćalasan
{"title":"Impact of Static Var Compensator (SVC) Devices on Power System Losses","authors":"Katarina Kecojević, Ognjen Lukačević, M. Ćalasan","doi":"10.2478/bhee-2019-0006","DOIUrl":"https://doi.org/10.2478/bhee-2019-0006","url":null,"abstract":"Abstract The aim of this paper is to investigate the effect of the location of the SVC installation on the amount of power losses in the power system. The IEEE modified system with 3 wind turbines and 24 nodes was used as the test system. For the purpose of discovering the optimal location of the SVC device, GAMS programme was used. Comparing the results for losses before and after setting SVC to the optimum position in order to minimize losses, it was concluded that the position and power of the SVC device greatly influence the amount of losses in the system.","PeriodicalId":236883,"journal":{"name":"B&H Electrical Engineering","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132043343","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
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信