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Voltage Stability Improvement by Inclusion of Parallel Transmission Lines: A Case Study of Western Kenya Region 并联输电线路改善电压稳定性:以肯尼亚西部地区为例
2022 IEEE 7th International Energy Conference (ENERGYCON) Pub Date : 2022-05-09 DOI: 10.1109/energycon53164.2022.9830229
Richard Ochieng Obumba, P. Musau, A. Nyete
{"title":"Voltage Stability Improvement by Inclusion of Parallel Transmission Lines: A Case Study of Western Kenya Region","authors":"Richard Ochieng Obumba, P. Musau, A. Nyete","doi":"10.1109/energycon53164.2022.9830229","DOIUrl":"https://doi.org/10.1109/energycon53164.2022.9830229","url":null,"abstract":"An integrated power system should provide stable and reliable power supply in any given economy. Western Kenya Region (WKR) has experienced voltage instabilities caused by inadequate transmission line infrastructure. The remedy adopted by Kenya Power is Under Voltage Load Shedding This paper proposes inclusion of parallel transmission lines to lower overall impedance and improve voltage stability and power transfer capability. The region's transmission system was modelled on an IEEE 39 Bus System and simulated using Digsilent Powerfactory software. The results revealed that parallel inclusion of transmission network significantly improved voltage levels and reduced loading of the main transmission lines into the region. The minimum bus voltage improved by up to 6.2%, whereas power transfer capability improved by an average of 42.09%. A Benefit/Cost Analysis qualified implementation of the proposed project to be economically viable. Due to increased loading on transmission lines, addition of Capacitor banks or suitable Flexible Alternating Current Transmission System devices at the buses with the lowest voltages would be recommended.","PeriodicalId":106388,"journal":{"name":"2022 IEEE 7th International Energy Conference (ENERGYCON)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117038680","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
An electrolytic capacitor-less multiple-output LED driver with a universal input voltage 具有通用输入电压的无电解电容多输出LED驱动器
2022 IEEE 7th International Energy Conference (ENERGYCON) Pub Date : 2022-05-09 DOI: 10.1109/energycon53164.2022.9830255
Khaled Awad, O. Abdel-Rahim, M. Gaafar, M. Orabi, A. Chub, A. Blinov, D. Vinnikov
{"title":"An electrolytic capacitor-less multiple-output LED driver with a universal input voltage","authors":"Khaled Awad, O. Abdel-Rahim, M. Gaafar, M. Orabi, A. Chub, A. Blinov, D. Vinnikov","doi":"10.1109/energycon53164.2022.9830255","DOIUrl":"https://doi.org/10.1109/energycon53164.2022.9830255","url":null,"abstract":"Over the last decades, light-emitting diodes have gained a special position in the lighting market over the conventional lighting sources due to their unique features over them such as their high efficacy, long lifetime, reduced power consumption, and being environmentally friendly. So, in this paper a multiple-output LED driver is proposed, the suggested topology has the advantages of being electrolytic capacitor-less which greatly extends the driver life span, the proposed topology has the ability to control the currents in each output channel independently and operate at a universal range of the supply voltage from 85 Vrms to 265 Vrms.","PeriodicalId":106388,"journal":{"name":"2022 IEEE 7th International Energy Conference (ENERGYCON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129147838","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
Determining optimisation Framework for Local Energy Communities 确定地方能源社区的优化框架
2022 IEEE 7th International Energy Conference (ENERGYCON) Pub Date : 2022-05-09 DOI: 10.1109/energycon53164.2022.9830444
I. Drovtar, T. Korõtko, A. Mutule, E. Kairisa, A. Rosin
{"title":"Determining optimisation Framework for Local Energy Communities","authors":"I. Drovtar, T. Korõtko, A. Mutule, E. Kairisa, A. Rosin","doi":"10.1109/energycon53164.2022.9830444","DOIUrl":"https://doi.org/10.1109/energycon53164.2022.9830444","url":null,"abstract":"Local energy communities (LEC) are cooperatives required to meet the ambitious targets of the European Green Deal. LECs are suitable to mitigate the challenges that increased integration of distributed generation puts on the grid and generation asset owners. The authors provide input to the general optimisation framework to develop LEC mathematical optimisation models to efficiently solve the multilateral economic dispatch decision on the low voltage distribution network. The input is beforehand validated with optimisation software to provide a priority list of which of the optimisation targets impact the performance of LEC most.","PeriodicalId":106388,"journal":{"name":"2022 IEEE 7th International Energy Conference (ENERGYCON)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131736460","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
The impact of variable wind and demand levels on the flexible operation of interconnectors in Great Britain 多变的风力和需求水平对英国互联连接器灵活运行的影响
2022 IEEE 7th International Energy Conference (ENERGYCON) Pub Date : 2022-05-09 DOI: 10.1109/energycon53164.2022.9830472
Qingwen Pang, Antonio De Paola, G. Strbac, V. Trovato
{"title":"The impact of variable wind and demand levels on the flexible operation of interconnectors in Great Britain","authors":"Qingwen Pang, Antonio De Paola, G. Strbac, V. Trovato","doi":"10.1109/energycon53164.2022.9830472","DOIUrl":"https://doi.org/10.1109/energycon53164.2022.9830472","url":null,"abstract":"This paper analyses the potential benefits for flexible operation of interconnectors in cross-border power systems. The underlying modelling approach enables the simultaneous cross-border exchange of power and inertia-dependent frequency response services through the interconnector. Two main operational paradigms are adopted. The first considers the interconnectors as centrally-operated assets; the latter envisages them as profit-seeking private entities. Furthermore, the proposed work adopts a sampling-based method to assess the impact of wind and demand variability on the short-term operation of the interconnectors, evaluating the sensitivities of relevant operational and economical metrics with respect to wind availability and demand levels. A comprehensive set of case studies is developed considering the Great Britain (GB)-France interconnected systems. The studies show significant value for interconnectors under a wide range of system conditions.","PeriodicalId":106388,"journal":{"name":"2022 IEEE 7th International Energy Conference (ENERGYCON)","volume":"255 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131699094","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
Soft Start-up Current Control of an LCC-S Compensated Inductive Charging System lc - s补偿感应充电系统的软启动电流控制
2022 IEEE 7th International Energy Conference (ENERGYCON) Pub Date : 2022-05-09 DOI: 10.1109/energycon53164.2022.9830463
D. Barth, M. Suriyah, T. Leibfried
{"title":"Soft Start-up Current Control of an LCC-S Compensated Inductive Charging System","authors":"D. Barth, M. Suriyah, T. Leibfried","doi":"10.1109/energycon53164.2022.9830463","DOIUrl":"https://doi.org/10.1109/energycon53164.2022.9830463","url":null,"abstract":"Starting an inductive power transmission (IPT) system requires regulation of the inverter current. Otherwise, overcurrent or hard-switching may occur. This publication discusses the soft-start of a full-bridge inverter powering stationary inductive charging of an electric vehicle (EV) battery. Compensation by the LCC-S network is used for this purpose, as well as the controllable dc link voltage on the primary side. The control strategy also takes advantage of variable frequency and phase shift. A transient state model of the circuit serves as the simulation environment for verification. It is shown that the inclusion of the dc link voltage simplifies the starting conditions and helps keeping zero voltage switching (ZVS) throughout the whole charging process.","PeriodicalId":106388,"journal":{"name":"2022 IEEE 7th International Energy Conference (ENERGYCON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123166667","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
Coordination of Load Tap Changer and Distributed Energy Resources to Improve Long-term Voltage Stability 负载分接开关与分布式能源的协调以提高长期电压稳定性
2022 IEEE 7th International Energy Conference (ENERGYCON) Pub Date : 2022-05-09 DOI: 10.1109/energycon53164.2022.9830224
Minh-Quan Tran, T. Tran, P. Nguyen, L. Tuan
{"title":"Coordination of Load Tap Changer and Distributed Energy Resources to Improve Long-term Voltage Stability","authors":"Minh-Quan Tran, T. Tran, P. Nguyen, L. Tuan","doi":"10.1109/energycon53164.2022.9830224","DOIUrl":"https://doi.org/10.1109/energycon53164.2022.9830224","url":null,"abstract":"Along With the increased installation of the distributed energy resources (DER) in distribution system, long-term voltage stability at the transmission level can be improved if proper coordination is developed between DERs and the existing grid controllers, e.g., load tap changer (LTC). This paper analyzes the problem of long-term voltage instability and presenting possible countermeasures. The study summarizes essential aspects for modelling, including LTC, DERs, and especially voltage dependent load. A coordination between DERs and LTC is proposed to allocate better power supply, especially at the coupling points between transmission and distribution networks, i.e. primary substation. A case study is performed using a modified CIGRE medium-voltage benchmark network. The simulation results have shown that the coordination has substantially improved the long-term voltage stability in the way of using the reactive power support from DERs and increasing the LTC position instated of decreasing as the traditional method.","PeriodicalId":106388,"journal":{"name":"2022 IEEE 7th International Energy Conference (ENERGYCON)","volume":"202 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116171053","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
Hybrid energy storage lifetime-oriented control strategy in islanded microgrids: A real time simulation case study 孤岛微电网混合储能寿命控制策略:实时仿真案例研究
2022 IEEE 7th International Energy Conference (ENERGYCON) Pub Date : 2022-05-09 DOI: 10.1109/energycon53164.2022.9830437
Tobias Häring, Luca Link, A. Rosin, H. Biechl
{"title":"Hybrid energy storage lifetime-oriented control strategy in islanded microgrids: A real time simulation case study","authors":"Tobias Häring, Luca Link, A. Rosin, H. Biechl","doi":"10.1109/energycon53164.2022.9830437","DOIUrl":"https://doi.org/10.1109/energycon53164.2022.9830437","url":null,"abstract":"To reduce greenhouse gas emissions, volatile energy production from renewable sources is highly encouraged by international agreements. This leads to balancing challenges of demand and supply which can be addressed with smart grids or even smart city concepts. Demand side management control strategies for flexibility harvesting often include energy storage systems, like flywheel- (FESS) and battery (BESS) storages. To investigate different control strategies for a hybrid energy storage system with a flywheel and battery storage in an islanded microgrid, an existing flywheel is modernized with state-of-the-art components to support real time power hardware in the loop simulations. Testing a load levelling control strategy with this test bench showed that the cyclic lifetime of the battery storage system could be increased with peak shaving due to a reduced amount of charging and discharging operations. An excessive energy buffering control method could increase the islanded operation time by using nearly 10% of the otherwise lost energy. However, these results with the testbench showed limited use for research with the current setup due to low capacity and high self-discharge rate of the existing FESS. But due to the MATLAB-based programming interface, it is perfectly suitable as an educational setup for the demonstration of possible implementations of the European Green Deal.","PeriodicalId":106388,"journal":{"name":"2022 IEEE 7th International Energy Conference (ENERGYCON)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129478773","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
Proposition of a Portfolio optimization System to Manage a Commercial Virtual Power Plant in the Brazilian Free Energy Market 巴西自由能源市场中管理商业虚拟电厂的投资组合优化系统的提出
2022 IEEE 7th International Energy Conference (ENERGYCON) Pub Date : 2022-05-09 DOI: 10.1109/energycon53164.2022.9830431
C. Santos, Isla Almeida Oliveira, Pâmela Rugoni Belin, M. A. Ludwig, J. R. H. Rodrigues, M. A. I. Martins
{"title":"Proposition of a Portfolio optimization System to Manage a Commercial Virtual Power Plant in the Brazilian Free Energy Market","authors":"C. Santos, Isla Almeida Oliveira, Pâmela Rugoni Belin, M. A. Ludwig, J. R. H. Rodrigues, M. A. I. Martins","doi":"10.1109/energycon53164.2022.9830431","DOIUrl":"https://doi.org/10.1109/energycon53164.2022.9830431","url":null,"abstract":"In face of the possibility of freely trading energy in the Brazilian market, a model is proposed to define an optimal contracting strategy for a Commercial Virtual Power Planet (CVPP) for years ahead. The idea behind the CVPP is to aggregate loads in order to obtain contractual benefits, acquiring long-term contracts at lowest prices and taking advantage of the complementary nature of the load profiles when settling the differences between consumption and contracts. The model, called Portfolio optimization System (POS) – in Portuguese, “Sistema de Otimização de Portfólio” (SOP) –, is based on Mixed-integer Linear Programming (MILP) and aims to maximize profit, considering a certain level of risk, represented by the Conditional Value-at-Risk (CVaR). In this paper the motivation behind the model and its potential market value as a tool for portfolio management, especially for energy retailers, are presented. With the Brazilian Energy Market business rules defined, a case study is proposed in order to compare optimized long-term contracting and short-term contracting without any optimization. The profit resulting from the use of the tool is valued at 31% in this case study.","PeriodicalId":106388,"journal":{"name":"2022 IEEE 7th International Energy Conference (ENERGYCON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129799819","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
State-of-the-art Activity Recognition and Prediction Techniques Applicable to the Home Energy Management System 适用于家庭能源管理系统的最先进的活动识别和预测技术
2022 IEEE 7th International Energy Conference (ENERGYCON) Pub Date : 2022-05-09 DOI: 10.1109/energycon53164.2022.9830154
Hossein Nourollahi Hokmabad, J. Belikov, Oleksander Husev, D. Vinnikov
{"title":"State-of-the-art Activity Recognition and Prediction Techniques Applicable to the Home Energy Management System","authors":"Hossein Nourollahi Hokmabad, J. Belikov, Oleksander Husev, D. Vinnikov","doi":"10.1109/energycon53164.2022.9830154","DOIUrl":"https://doi.org/10.1109/energycon53164.2022.9830154","url":null,"abstract":"Owing to the tendency to convert ordinary homes to smart ones, there are novel opportunities for home energy management systems to exploit the binary and analog sensors collected information to enhance their performance. Having accurate forecasting about the behavior of house inhabitants, and their preferences could help the system be more efficient and reliable. In this paper, some state-of-the-art activity recognition and prediction techniques are reviewed and we introduce a conceptual platform for interactive collaboration between smart homes and energy management systems.","PeriodicalId":106388,"journal":{"name":"2022 IEEE 7th International Energy Conference (ENERGYCON)","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121965014","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
Application of Hilbert-Huang and Stockwell Transforms to Fault Location in Transmission Lines Using Traveling Wave Theory Hilbert-Huang和Stockwell变换在行波输电线路故障定位中的应用
2022 IEEE 7th International Energy Conference (ENERGYCON) Pub Date : 2022-05-09 DOI: 10.1109/energycon53164.2022.9830381
A. P. Oliveira, F. Moreira, A. Picanco
{"title":"Application of Hilbert-Huang and Stockwell Transforms to Fault Location in Transmission Lines Using Traveling Wave Theory","authors":"A. P. Oliveira, F. Moreira, A. Picanco","doi":"10.1109/energycon53164.2022.9830381","DOIUrl":"https://doi.org/10.1109/energycon53164.2022.9830381","url":null,"abstract":"This paper presents an application and comparison between two techniques, the Hilbert-Huang and Stockwell transforms, to extract the characteristic data from two terminals and use them with the traveling wave theory for fault location in a 200 km long transmission line between two voltage sources. The MATLAB/Simulink® software was used to simulate different fault conditions and analyze the voltage signals, through the programmed algorithm, to calculate the fault location. The results obtained have shown the efficiency in using the techniques to identify the traveling wave arrival time and locate the fault with a low computational cost, considering all types of faults. Different fault locations and fault resistances were considered.","PeriodicalId":106388,"journal":{"name":"2022 IEEE 7th International Energy Conference (ENERGYCON)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127979682","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
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