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Congestion management optimization in electric transmission system 输电系统拥塞管理优化
2018 Australasian Universities Power Engineering Conference (AUPEC) Pub Date : 2018-11-01 DOI: 10.1109/AUPEC.2018.8757932
E. Semshchikov, M. Negnevitsky
{"title":"Congestion management optimization in electric transmission system","authors":"E. Semshchikov, M. Negnevitsky","doi":"10.1109/AUPEC.2018.8757932","DOIUrl":"https://doi.org/10.1109/AUPEC.2018.8757932","url":null,"abstract":"Congestion management in electric transmission systems is one of the most important challenges for power systems with high penetration of renewable energy. System congestion occurs when the desired power flow cannot be transmitted through the network without violating system operating limits. In order to prevent severe system damage, a significant number of congestion management methods have been developed, including nodal pricing, load shedding, curtailment of renewable energy generation, generator rescheduling, optimal transmission switching, etc. Most of these methods, however, do not comply with the optimal operation of conventional power plants subjected to dynamic constraints (manoeuvrability, start-up and shut down times, etc.). In this paper, the rescheduling generation (or re-dispatch optimization) problem is solved using a modified particle swarm optimization (PSO) algorithm which accounts for start up as well as shut down times, and the manoeuvrability of conventional power plants.","PeriodicalId":314530,"journal":{"name":"2018 Australasian Universities Power Engineering Conference (AUPEC)","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132723535","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
Design of Stand Alone Photovoltaic System in Developing Countries: A Case Study of Kano, Nigeria 发展中国家独立光伏系统的设计:以尼日利亚卡诺为例
2018 Australasian Universities Power Engineering Conference (AUPEC) Pub Date : 2018-11-01 DOI: 10.1109/AUPEC.2018.8757895
C. Egbon, A. Oyekola, T. Lie
{"title":"Design of Stand Alone Photovoltaic System in Developing Countries: A Case Study of Kano, Nigeria","authors":"C. Egbon, A. Oyekola, T. Lie","doi":"10.1109/AUPEC.2018.8757895","DOIUrl":"https://doi.org/10.1109/AUPEC.2018.8757895","url":null,"abstract":"Many houses in developing countries are in remote communities located far away from the grid and connecting them to the grid is capital-intensive. Therefore, considering solar energy for domestic usage is an avenue where energy from the sun is converted to electricity to power domestic appliances especially for these houses in remote areas. In Nigeria, solar energy is readily available because of the geographical location and appropriate climatic condition so it is necessary to use solar energy to supply electricity to these remote areas. This paper seeks to present the guidelines and components required for the design of a cost-effective standalone photovoltaic (PV) system that will effectively power electrical appliances for residential homes in the remote part of Kano state, Nigeria with an average monthly solar irradiance between 5 to 8kWh/m2/day and at a medium-energy consumption level.","PeriodicalId":314530,"journal":{"name":"2018 Australasian Universities Power Engineering Conference (AUPEC)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116566429","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: 6
Distributed Approach for Solving Optimal Power Flow Problems in Three-phase Unbalanced Distribution Networks 求解三相不平衡配电网最优潮流问题的分布式方法
2018 Australasian Universities Power Engineering Conference (AUPEC) Pub Date : 2018-11-01 DOI: 10.1109/AUPEC.2018.8757955
Theyab R. Alsenani, S. Paudyal
{"title":"Distributed Approach for Solving Optimal Power Flow Problems in Three-phase Unbalanced Distribution Networks","authors":"Theyab R. Alsenani, S. Paudyal","doi":"10.1109/AUPEC.2018.8757955","DOIUrl":"https://doi.org/10.1109/AUPEC.2018.8757955","url":null,"abstract":"The objective of this work is to study distributed approach for solving three-phase optimal power flow (OPF) problem in unbalanced power distribution networks. A full three-phase representation of distribution networks is considered to account for the highly unbalanced conditions. All distribution network’s series/shunt components, and load types/combinations are considered. The OPF problem has been successfully implemented and solved in a centralized and distributed approaches, where the objective is to minimize the active power losses on the feeder. Case studies are carried out using the IEEE-37 Node Test Feeder.","PeriodicalId":314530,"journal":{"name":"2018 Australasian Universities Power Engineering Conference (AUPEC)","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122421292","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
Developing Feedback to Control an Intelligent Battery Charger for Wet Batteries 基于反馈控制的湿电池智能充电器研究
2018 Australasian Universities Power Engineering Conference (AUPEC) Pub Date : 2018-11-01 DOI: 10.1109/AUPEC.2018.8757891
A. Helwig, Akshay Sahay
{"title":"Developing Feedback to Control an Intelligent Battery Charger for Wet Batteries","authors":"A. Helwig, Akshay Sahay","doi":"10.1109/AUPEC.2018.8757891","DOIUrl":"https://doi.org/10.1109/AUPEC.2018.8757891","url":null,"abstract":"Battery charge acceptance changes as the state of charge (SOC) increases. Over-potential voltage at any time during the battery charging results in the release of hydrogen and oxygen with a resulting loss of water. Overcharging has long term negative impacts on both wet lead-acid and nickel-iron Edison alkaline batteries’ life and capacity. To establish a fast-charging variable scheme, a feedback mechanism is required to be found to allow an intelligent charger to respond to SOC. The aim is as SOC changes, then varying the applied voltage and current to follow the varying charge acceptance. This investigation is the first step in developing such a feedback mechanism to allow fast-charging while minimising electrolyte water loss.","PeriodicalId":314530,"journal":{"name":"2018 Australasian Universities Power Engineering Conference (AUPEC)","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122765653","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
Using Fast Frequency Response Services to Improve Frequency Stability of Low Inertia Power Systems 利用快速频响服务提高低惯量电力系统的频率稳定性
2018 Australasian Universities Power Engineering Conference (AUPEC) Pub Date : 2018-11-01 DOI: 10.1109/AUPEC.2018.8757957
Fassahat U. Qureshi, G. Verbič, M. Garmroodi, Archie C. Chapman, Ahmad Shabir Ahmadyar
{"title":"Using Fast Frequency Response Services to Improve Frequency Stability of Low Inertia Power Systems","authors":"Fassahat U. Qureshi, G. Verbič, M. Garmroodi, Archie C. Chapman, Ahmad Shabir Ahmadyar","doi":"10.1109/AUPEC.2018.8757957","DOIUrl":"https://doi.org/10.1109/AUPEC.2018.8757957","url":null,"abstract":"The increasing penetration of non-synchronous renewable energy sources (NS-RES) has led to a decrease in power systems inertia which introduces major challenges to frequency stability. This paper investigates impacts of inertia location and network topology on frequency stability of power systems by the means of time domain simulations. We assess the contribution of fast frequency response (FFR) services on frequency performance of the system by considering the impact of FFR controller activation time delay. Furthermore, we derive analytical expressions to approximate rotor frequency and rate of change of frequency (RoCoF) which show that the impacts of reduced inertia can be studied by avoiding computationally extensive simulations. The results show that the FFR services provided by the NS-RES are attractive options in low inertia power systems.","PeriodicalId":314530,"journal":{"name":"2018 Australasian Universities Power Engineering Conference (AUPEC)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117317970","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
Sequence Components Based Three-Phase Power Flow Algorithm with Renewable Energy Resources for A Practical Application 基于序列分量的可再生能源三相潮流算法的实际应用
2018 Australasian Universities Power Engineering Conference (AUPEC) Pub Date : 2018-11-01 DOI: 10.1109/AUPEC.2018.8757958
S. Ashfaq, Daming Zhang, T. Malik
{"title":"Sequence Components Based Three-Phase Power Flow Algorithm with Renewable Energy Resources for A Practical Application","authors":"S. Ashfaq, Daming Zhang, T. Malik","doi":"10.1109/AUPEC.2018.8757958","DOIUrl":"https://doi.org/10.1109/AUPEC.2018.8757958","url":null,"abstract":"Load flow investigations form an essential prerequisite for power system studies. Existing load-flow techniques, particularly single phase solutions are well developed and streamlined for rapid solutions of very large networks. Conventionally balanced single phase load flow analysis is carried out and balanced model of power system is assumed. Three phase load flow solutions is a useful approach as system unbalance cannot be ignored due to un-transposed transmission lines and unbalance loading in power system. This paper deals with the three phase load flow investigations, which aims to find the optimal operation of National Transmission and Dispatch Company (NTDC), 32-Bus 500/220 kV primary Power System. Sequence components based Algorithm is presented for three-phase networks and is tested for IEEE 6-bus 14-Bus and NTDC 32-Bus practical test system. The performance of the system has been studied for different types of renewable energy resources such as solar and hydel generation units for practical scenarios. Comparison of results validates the potential strength of investigations.","PeriodicalId":314530,"journal":{"name":"2018 Australasian Universities Power Engineering Conference (AUPEC)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130810599","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
Design and analysis of an UFLS scheme for low-inertia based power grid 基于低惯量的电网UFLS方案设计与分析
2018 Australasian Universities Power Engineering Conference (AUPEC) Pub Date : 2018-11-01 DOI: 10.1109/AUPEC.2018.8758050
S. Hossain, M. Hossain, Edstan Fernandez, Md Shihanur Rahman
{"title":"Design and analysis of an UFLS scheme for low-inertia based power grid","authors":"S. Hossain, M. Hossain, Edstan Fernandez, Md Shihanur Rahman","doi":"10.1109/AUPEC.2018.8758050","DOIUrl":"https://doi.org/10.1109/AUPEC.2018.8758050","url":null,"abstract":"A Significant change to power systems’ dynamic behavior, especially frequency responses, following a contingency event is a major concern due to the high penetrations of low/inertia-less renewable energy sources. Power system inertia can be getting weaker with the integrations of renewable energy into the grid. As a result, sometimes the under frequency load shedding (UFLS) schemes fail to protect the frequency decline below the threshold limits with conventional settings. This paper addresses this problem and analyse the impacts of penetration of renewable energies into the power systems. Furthermore, a modified load-shedding method is proposed by considering the rate of change of frequency (ROCOF) and the total system’s damping factor. Then a comparison study between proposed method and other methods (conventional and MILP) is presented. A 13-bus real power system is considered as test bus and several case studies are conducted using the Python based PSS/E simulation software platform. From the simulation results it is found that, the proposed load shedding method successfully restricts the frequency decline within a safe limits and thereby, avoids the possibility of major blackouts.","PeriodicalId":314530,"journal":{"name":"2018 Australasian Universities Power Engineering Conference (AUPEC)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131129296","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
Feasibility of Generic Load Modeling for State Estimation in Distribution System 配电系统状态估计通用负荷建模的可行性
2018 Australasian Universities Power Engineering Conference (AUPEC) Pub Date : 2018-11-01 DOI: 10.1109/AUPEC.2018.8758006
Xiang Li, O. Krause
{"title":"Feasibility of Generic Load Modeling for State Estimation in Distribution System","authors":"Xiang Li, O. Krause","doi":"10.1109/AUPEC.2018.8758006","DOIUrl":"https://doi.org/10.1109/AUPEC.2018.8758006","url":null,"abstract":"In the distribution system, the load is always changing. As the penetration of low-carbon technology is getting higher, the load landscape becomes more complex. In this case, the importance of distribution system monitoring is growing in order to increase the stability and reliability of the whole power system. It is expensive for meter installation and maintenance at all distribution nodes as the distribution system generally has large scale. It is expected to find an approach to supplement or even substitute the measurements. A generic load model has been proposed to solve the problem. This model can be considered as input of adaptive state estimation. The feasibility has been discussed in the paper. A preliminary mathematical model has been developed from the real world data. This model proves the level of load uncertainty can be aggregated of 2 different components.","PeriodicalId":314530,"journal":{"name":"2018 Australasian Universities Power Engineering Conference (AUPEC)","volume":"67 16","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120825002","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
Comparative Assessment of the Energy Consumed by Various Solar-powered Water Desalination Systems 各种太阳能海水淡化系统能耗的比较评估
2018 Australasian Universities Power Engineering Conference (AUPEC) Pub Date : 2018-11-01 DOI: 10.1109/AUPEC.2018.8757898
Nooshin Shekarchi, Farhad Shahnia
{"title":"Comparative Assessment of the Energy Consumed by Various Solar-powered Water Desalination Systems","authors":"Nooshin Shekarchi, Farhad Shahnia","doi":"10.1109/AUPEC.2018.8757898","DOIUrl":"https://doi.org/10.1109/AUPEC.2018.8757898","url":null,"abstract":"This paper focuses on utilizing solar energy for deriving desalination systems to yield freshwater from the sea or brackish water, with less environmental impacts. The paper first discusses the specifications of various solar-driven desalinations and compares their advantages and limitations. Then, a detailed comparison is provided between the energy consumption and water production cost of such systems. These metrics are later compared versus conventional (i.e., fossil fuel) systems. In the end, the most appropriate solar-driven desalinations are recommended based on their energy consumption and water production cost.","PeriodicalId":314530,"journal":{"name":"2018 Australasian Universities Power Engineering Conference (AUPEC)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124956315","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
Curve Fitting for Lightning Impulse Tests According to Standard IEC 60060-1:2010 by Levenberg-Marquardt Algorithm 用Levenberg-Marquardt算法拟合标准IEC 60060-1:2010雷电冲击试验曲线
2018 Australasian Universities Power Engineering Conference (AUPEC) Pub Date : 2018-11-01 DOI: 10.1109/AUPEC.2018.8757872
S. Ludpa, P. Yutthagowith
{"title":"Curve Fitting for Lightning Impulse Tests According to Standard IEC 60060-1:2010 by Levenberg-Marquardt Algorithm","authors":"S. Ludpa, P. Yutthagowith","doi":"10.1109/AUPEC.2018.8757872","DOIUrl":"https://doi.org/10.1109/AUPEC.2018.8757872","url":null,"abstract":"The International Electro technical Commission (IEC) IEC 60060-1: 2010 describes the requirements and how to calculate impulse waveform parameters. This paper proposes a curve fitting methods for determining the lightning Impulse voltage waveform parameters according to Standard IEC 60060-1:2010. Curve fitting is important for waveform parameter evaluation in testing and research on high voltage engineering. This paper presents a method to estimate the waveform parameters according to the standard IEC 60060-1: 2010. Levenberg-Marquardt algorithm has been applied for this purposes. The standard lightning impulse waveform generated by the test data generator attached with IEC 61083-2. It found that the developed software can be used in the waveform parameter evaluation accurately.","PeriodicalId":314530,"journal":{"name":"2018 Australasian Universities Power Engineering Conference (AUPEC)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123615901","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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