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Analysis of Voltage Profiles, Unbalance Voltages and Phase Balance Optimization of Single-Phase Customer and Photovoltaic Connection at Real Low Voltage Feeder 实际低压馈线上单相用户和光伏连接的电压曲线、不平衡电压和相位平衡优化分析
B&H Electrical Engineering Pub Date : 2023-12-01 DOI: 10.2478/bhee-2023-0019
Mario Ostojić, A. Bosovic
{"title":"Analysis of Voltage Profiles, Unbalance Voltages and Phase Balance Optimization of Single-Phase Customer and Photovoltaic Connection at Real Low Voltage Feeder","authors":"Mario Ostojić, A. Bosovic","doi":"10.2478/bhee-2023-0019","DOIUrl":"https://doi.org/10.2478/bhee-2023-0019","url":null,"abstract":"Abstract Voltage unbalance is common issue encountered in low voltage distribution networks, caused by uneven allocation of single-phase customers among phases. This paper analyses part of real low voltage distribution network in Bosnia and Herzegovina. The impact of single-phase customers and single-phase connected micro photovoltaic power plants (MPPP-s) were analysed. To reduce unbalance and improve voltage profiles, Phase Balance Optimization toolbox in DIgSILENT PowerFactory software was performed in six scenarios with different distribution of customers and different percentage of penetration of MPPS-s. The aim was to find method with least number of changes in customer and photovoltaic phase connection that fits within defined limits of voltage variations and voltage unbalance of European standard for power quality (EN 50160). Conclusion is that MPPP-s cause voltage increases in the network, as well as an increase in voltage unbalance, but these effects can be mitigated by proper distribution of customer loads and MPPS-s among phases.","PeriodicalId":236883,"journal":{"name":"B&H Electrical Engineering","volume":"36 4","pages":"61 - 74"},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139017556","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
Profile Optimisation in Real Distribution Networks (Case Study Long MV Feeder) 实际配电网络中的曲线优化（长中压馈线案例研究）
B&H Electrical Engineering Pub Date : 2023-12-01 DOI: 10.2478/bhee-2023-0013
Aida Pipić, A. Bosovic, M. Music
{"title":"Profile Optimisation in Real Distribution Networks (Case Study Long MV Feeder)","authors":"Aida Pipić, A. Bosovic, M. Music","doi":"10.2478/bhee-2023-0013","DOIUrl":"https://doi.org/10.2478/bhee-2023-0013","url":null,"abstract":"Abstract In the dynamic field of power systems, integrating distributed generation (DG) sources like solar photovoltaic (PV) plants is crucial for enhancing reliability and fostering sustainability. However, this integration poses voltage profile management challenges in electrical grids. This study investigates voltage profile optimization in Bosnia and Herzegovina’s Gračanica network, focusing on a medium voltage feeder with 68 buses. Using DIgSILENT PowerFactory software, six scenarios with different configurations of solar plants are analyzed for their impact on voltage profiles and power losses. Results show that while DG integration offers benefits, incorrect sizing or placement can increase power losses. Optimal DG benefits are linked to specific sizes and locations. This research emphasizes the need for balancing PV generation with load demands and provides insights for optimal PV plant size and output to minimize negative impacts. These findings aid energy planners and policymakers in implementing distributed solar PV in medium voltage networks.","PeriodicalId":236883,"journal":{"name":"B&H Electrical Engineering","volume":" 62","pages":"10 - 20"},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138614126","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
Increasing the Capacity of the Distribution Network by Changing Consumers’ Habits - Case Study 通过改变消费者习惯提高分销网络能力 - 案例研究
B&H Electrical Engineering Pub Date : 2023-12-01 DOI: 10.2478/bhee-2023-0014
Janez Kopač
{"title":"Increasing the Capacity of the Distribution Network by Changing Consumers’ Habits - Case Study","authors":"Janez Kopač","doi":"10.2478/bhee-2023-0014","DOIUrl":"https://doi.org/10.2478/bhee-2023-0014","url":null,"abstract":"Abstract The study presents a new distribution tariff methodology in Slovenia that will enter into force on 1 July 2024. Its main novelty is the introduction of five-time slots with substantially different charges, the introduction of an agreed capacity (apart from nominated) that can be changed upon request several times a year, and an increased weight of capacity (power) in the distribution tariff making it more cost reflective. It is expected that changes will substantially increase the capacities of the grid and help to adapt it to the challenges of the energy transition. The approach can be replicated only in countries where connected capacity charge represents a substantial portion of the distribution tariff.","PeriodicalId":236883,"journal":{"name":"B&H Electrical Engineering","volume":" 93","pages":"21 - 25"},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138611947","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
Distributed Generation Allocation in Distribution Network for Energy Losses Reduction 配电网络中的分布式发电分配以减少能源损耗
B&H Electrical Engineering Pub Date : 2023-12-01 DOI: 10.2478/bhee-2023-0020
Emina Melic, Merisa Hanjalić, M. Saric, J. Hivziefendic
{"title":"Distributed Generation Allocation in Distribution Network for Energy Losses Reduction","authors":"Emina Melic, Merisa Hanjalić, M. Saric, J. Hivziefendic","doi":"10.2478/bhee-2023-0020","DOIUrl":"https://doi.org/10.2478/bhee-2023-0020","url":null,"abstract":"Abstract This paper presents a method for distributed generation (DG) allocation in medium voltage (MV) distribution system based on energy loss minimization. The main objective of the research is to design, implement and test a DG allocation (siting and sizing) method and to investigate how optimal DG allocation influence the operational parameters of the system from the Distribution System Operator (DSO) perspective. The problem is formulated as a single objective optimization problem solved by using both genetic algorithm and particle swarm optimization techniques. Model of a realistic Electric Power Distribution System (EPDS) and IEEE 37-bus EPDS are used as test systems. The results confirm that proposed algorithms can be used for practical DG allocation. The research presented contributes to the field as it provides a DG allocation method for energy loss reduction performed on a EPDS which can be applied in realistic planning and regulatory situations using open-source software.","PeriodicalId":236883,"journal":{"name":"B&H Electrical Engineering","volume":"90 1","pages":"75 - 82"},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139026587","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
Example of Matlab/Simulink Tool Usage for Evaluation of Wind Turbine Operation During Voltage Regulation and Reactive Power Regulation 评估风力涡轮机在电压调节和无功功率调节期间运行情况的 Matlab/Simulink 工具使用示例
B&H Electrical Engineering Pub Date : 2023-12-01 DOI: 10.2478/bhee-2023-0012
Vinko Kalfić, Goran Kujundžić
{"title":"Example of Matlab/Simulink Tool Usage for Evaluation of Wind Turbine Operation During Voltage Regulation and Reactive Power Regulation","authors":"Vinko Kalfić, Goran Kujundžić","doi":"10.2478/bhee-2023-0012","DOIUrl":"https://doi.org/10.2478/bhee-2023-0012","url":null,"abstract":"Abstract In this paper, the types of wind turbines are listed and described, with the emphasis on horizontal-axis wind turbines. The parts are explained in more detail, the criteria for the selection of the wind turbine generator and the methods of managing the wind turbine are defined. In the Matlab/Simulink programming environment, a model of an electric power network with a wind farm was created, and the characteristics of the operation of wind turbines under normal and fault conditions were presented.","PeriodicalId":236883,"journal":{"name":"B&H Electrical Engineering","volume":" 46","pages":"1 - 9"},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138620794","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
Aerovalved Pulse Combustor for Enhancing Efficiency and Sustainability of Fossil Energy Conversion 用于提高化石能源转换效率和可持续性的气浮脉冲燃烧器
B&H Electrical Engineering Pub Date : 2023-12-01 DOI: 10.2478/bhee-2023-0018
I. Smajević, Kemal Hanjalić
{"title":"Aerovalved Pulse Combustor for Enhancing Efficiency and Sustainability of Fossil Energy Conversion","authors":"I. Smajević, Kemal Hanjalić","doi":"10.2478/bhee-2023-0018","DOIUrl":"https://doi.org/10.2478/bhee-2023-0018","url":null,"abstract":"Abstract The paper actualizes earlier research in developing a pulse combustion technique for enhancing the efficacy of utility and industrial boilers and furnaces. Some unpublished results of the experimental investigation of self-sustained pulsating combustion of a gas fuel in an aerovalved pulse combustor (PC) are presented. Relationships have been established between all important design and operating parameters and the combustion characteristics. It was demonstrated that a well-designed pulse combustor can operate efficiently in a stable self-pumping regime in a wide range of operating conditions with the loading from 20% to 100% of the maximum power. While a PC can operate autonomously as a gas burner, the present focus is on their use for mitigating slug and ash deposits on heating surfaces of coal- or biomass fired power and industrial boilers, thus providing an alternative to the proven detonation pulse (DPC) or other techniques for on-line cleaning of heating surfaces during the operation of power and industrial boilers.","PeriodicalId":236883,"journal":{"name":"B&H Electrical Engineering","volume":"7 12","pages":"53 - 60"},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138624745","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
Long-Range Remote Control Based on LoRa Transceivers 基于 LoRa 收发器的远距离远程控制
B&H Electrical Engineering Pub Date : 2023-12-01 DOI: 10.2478/bhee-2023-0011
Enes Saletovic, Nevzudin Buzađija, Đulaga Hadžić
{"title":"Long-Range Remote Control Based on LoRa Transceivers","authors":"Enes Saletovic, Nevzudin Buzađija, Đulaga Hadžić","doi":"10.2478/bhee-2023-0011","DOIUrl":"https://doi.org/10.2478/bhee-2023-0011","url":null,"abstract":"Abstract Within this paper, the possibility of using advanced LoRa technology in the field of long-range remote control was considered. For testing purposes, a one-way point-to-point LoRa remote control link was implemented based on the LoRa Ra-02 SX1278 transceiver and the corresponding 32-bit Cortex-M3 microcontroller. The remote control application software is developed in the Arduino development environment. The implemented link was tested experimentally to check the range, data transfer speed and link stability. Test results show that LoRa transceiver modules can be used in the field of long-range remote control.","PeriodicalId":236883,"journal":{"name":"B&H Electrical Engineering","volume":" 4","pages":"42 - 48"},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138613243","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
Implementation of Billing System at Electrical Vehicle Charging Stations in Elektroprivreda BiH 在波黑 Elektroprivreda 的电动汽车充电站实施计费系统
B&H Electrical Engineering Pub Date : 2023-12-01 DOI: 10.2478/bhee-2023-0021
Selma Kovačević, Svetlana Mišut, Andreja Softić
{"title":"Implementation of Billing System at Electrical Vehicle Charging Stations in Elektroprivreda BiH","authors":"Selma Kovačević, Svetlana Mišut, Andreja Softić","doi":"10.2478/bhee-2023-0021","DOIUrl":"https://doi.org/10.2478/bhee-2023-0021","url":null,"abstract":"Abstract Electromobility is strongly encouraged in the European Union. Elektroprivreda of Bosnia and Herzegovina (EP BiH) is the only company in BiH that uses Charge Point Management Software. To ensure a functional process of calculation and billing of charging consumption, it is necessary to implement appropriate software solutions. This paper provides a comparative analysis of possible models of ad-hoc charging at electric vehicle charging stations. As a result of a comparative analysis of the advantages and disadvantages of each of the observed variants, a more detailed description of one selected model was given, which, due to its characteristics, as well as readiness for quick implementation in existing environment of EP BiH, proved to be the most adequate solution for business requirements of the company. The paper describes the economic effects of the introduction of the selected billing model, as well as the tariff model for charging.","PeriodicalId":236883,"journal":{"name":"B&H Electrical Engineering","volume":"18 1","pages":"83 - 90"},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139014937","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
Electromobility in BiH 波黑的电动交通
B&H Electrical Engineering Pub Date : 2023-12-01 DOI: 10.2478/bhee-2023-0016
Emina Bićo, Jasmina Bešić, Ali Damadžić, Nihad Harbaš
{"title":"Electromobility in BiH","authors":"Emina Bićo, Jasmina Bešić, Ali Damadžić, Nihad Harbaš","doi":"10.2478/bhee-2023-0016","DOIUrl":"https://doi.org/10.2478/bhee-2023-0016","url":null,"abstract":"Abstract In this paper an overview of the current state of electromobility in Bosnia and Herzegovina (BiH) and a prediction of the future state of electromobility in BiH according to models from the European Union (EU) and the state expected in the future is given. Based on the reference state, an analysis of energy consumption and energy savings due to the increase in the number of EVs in the future was performed. The main goal of this paper is to provide predictable data on the number of EVs expected in the future, according to models from the EU. These data can be used when planning the development of the network for electric cars, mainly charging stations. An analysis of the current state of the number and locations of charging stations for electric vehicles (EVs) was made.","PeriodicalId":236883,"journal":{"name":"B&H Electrical Engineering","volume":"93 5","pages":"33 - 43"},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138623632","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
Digital Transformation Path of Manually Collected Meter Reading Data 人工收集抄表数据的数字化转型之路
B&H Electrical Engineering Pub Date : 2023-12-01 DOI: 10.2478/bhee-2023-0015
Andrea Hrustemović, Nedim Laković, Nermana Tanović, Emir Alihodzić
{"title":"Digital Transformation Path of Manually Collected Meter Reading Data","authors":"Andrea Hrustemović, Nedim Laković, Nermana Tanović, Emir Alihodzić","doi":"10.2478/bhee-2023-0015","DOIUrl":"https://doi.org/10.2478/bhee-2023-0015","url":null,"abstract":"Abstract The global trend of digital transformation is not reserved for those sectors and businesses that are highly dependent on information technology (IT) solutions, but even for those traditional energy companies that still need to pass the long way to maximize green energy, automation and full trajectory of modernizing energy distribution. In energy distribution system Public Enterprise Electric Utility of Bosnia and Herzegovina (PE EP B&H), only around sixteen percent of meters are part of Advanced Metering Management (AMM) system and their data is ready to be used for different data analysis using business intelligence, while data collection from other meters is still done manually, and those one will probably not be replaced as long as they are operable. Main problem that PE EP B&H experienced in digitalization of meter reading data was to overcome readings that meter readers collected and wrote on paper lists.","PeriodicalId":236883,"journal":{"name":"B&H Electrical Engineering","volume":" 11","pages":"26 - 32"},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138613755","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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