2020 10th Smart Grid Conference (SGC)最新文献

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Bridge Type Series Resonance Transient Current Limiter for Medium-Voltage Smart Grids Application 桥式串联谐振暂态限流器在中压智能电网中的应用
2020 10th Smart Grid Conference (SGC) Pub Date : 2020-12-16 DOI: 10.1109/SGC52076.2020.9335763
H. Radmanesh, Amir Heidary
{"title":"Bridge Type Series Resonance Transient Current Limiter for Medium-Voltage Smart Grids Application","authors":"H. Radmanesh, Amir Heidary","doi":"10.1109/SGC52076.2020.9335763","DOIUrl":"https://doi.org/10.1109/SGC52076.2020.9335763","url":null,"abstract":"The main propose of this paper is to protect medium voltage smart grid applications from damages of the destructive fault current based on resonant type fault current limiter. Because of the series connection of a capacitor and a reactor, the Series Resonance Fault Current Limiter (SRFCL) is invisible during normal operation and shows negligible impedance in the line. During the fault, a control circuit connects a rectifier bridge to the series reactor and induces a DC voltage on it. In this instant, the series reactor is short circuited, and the series capacitor remains in the line. Thus, the impedance of the series capacitor reduces the amplitude of the fault current.","PeriodicalId":391511,"journal":{"name":"2020 10th Smart Grid Conference (SGC)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131275188","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
Active Distribution Networks Equivalencing for Dynamic Studies Using Measurements 动态研究中的主动配电网等效测量
2020 10th Smart Grid Conference (SGC) Pub Date : 2020-12-16 DOI: 10.1109/SGC52076.2020.9335756
B. Zaker, E. Farjah, G. Gharehpetian
{"title":"Active Distribution Networks Equivalencing for Dynamic Studies Using Measurements","authors":"B. Zaker, E. Farjah, G. Gharehpetian","doi":"10.1109/SGC52076.2020.9335756","DOIUrl":"https://doi.org/10.1109/SGC52076.2020.9335756","url":null,"abstract":"In order to analyze power system dynamics in presence of microgrids and active distribution networks, it is essential to use accurate models of them in software packages. Since microgrids and active distribution networks include different types of distributed generations with complex detailed models, this will lead to high computation burden for this kind of studies. Therefore, it has been proposed to use precise equivalent models instead of detailed models. In this paper, a new method is proposed to obtain the dynamic equivalent model of active distribution networks using measurement data of disturbances. These disturbances include three phase short circuit which may occurred in the upstream power system. The proposed method uses measurement data of point of common coupling to simultaneously estimate the parameters of the equivalent generation unit and its controller. To show the effectiveness of the proposed method, it is applied to IEEE 9-Bus and 33-Bus systems as upstream and distribution systems, respectively.","PeriodicalId":391511,"journal":{"name":"2020 10th Smart Grid Conference (SGC)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133750181","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
Nonlinear Control Analysis of Sensors Effect and Line Resistance for Current Sharing and Voltage Regulation in DC Microgrids 直流微电网共流调压传感器效应和线路电阻非线性控制分析
2020 10th Smart Grid Conference (SGC) Pub Date : 2020-12-16 DOI: 10.1109/SGC52076.2020.9335748
Mahdi Mosayebi, S. Sadeghzadeh
{"title":"Nonlinear Control Analysis of Sensors Effect and Line Resistance for Current Sharing and Voltage Regulation in DC Microgrids","authors":"Mahdi Mosayebi, S. Sadeghzadeh","doi":"10.1109/SGC52076.2020.9335748","DOIUrl":"https://doi.org/10.1109/SGC52076.2020.9335748","url":null,"abstract":"This paper proposes a new nonlinear droop control to improve voltage regulation and current-sharing among paralleled DC-DC converters in the DC-Microgrid (DCMG) in the Smart Homes (SHs). Line impedances can degrade the performance of the conventional droop methods in the current sharing among parallel DC-DC converters in the DC-Microgrids in the SHs. Moreover, sensing errors of the voltage and current in the DCMG can influence the current-sharing among parallel converters. The novel nonlinear proposed method improves voltage regulation and current sharing among the DC-DC converters by considering the effect of line impedance and sensing errors, which is an important issue in practical applications. The suggested method can guarantee the desire current-sharing from light-load to the heavy-load conditions in a stand-alone DCMG. Finally, theoretical analysis and Hardware-in-the-loop (HIL) experimental results are validated the effectiveness and applicability of the proposed control approach for different scenarios.","PeriodicalId":391511,"journal":{"name":"2020 10th Smart Grid Conference (SGC)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117319870","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
Reliability evaluation of active distribution networks based on scenario reduction method using PSO algorithm 基于PSO算法场景约简的有源配电网可靠性评估
2020 10th Smart Grid Conference (SGC) Pub Date : 2020-12-16 DOI: 10.1109/SGC52076.2020.9335770
Mehran Memari, A. Karimi, H. Hashemi‐Dezaki
{"title":"Reliability evaluation of active distribution networks based on scenario reduction method using PSO algorithm","authors":"Mehran Memari, A. Karimi, H. Hashemi‐Dezaki","doi":"10.1109/SGC52076.2020.9335770","DOIUrl":"https://doi.org/10.1109/SGC52076.2020.9335770","url":null,"abstract":"The challenges of active distribution networks (ADNs) have received a great deal of attention due to the increase in the penetration of distributed generations (DGs). The uncertainties of renewable DGs adversely affect the ADNs performance; thus, reliability evaluation of ADNs considering uncertainties is important. The analytical and Monte Carlo Simulation (MCS) methods are used for studying the uncertainties, while MCS is more popular than analytical methods. The main challenge of the MCS method is its computation time. In this paper, a new scenario-based reliability evaluation method using particle swarm optimization (PSO) clustering algorithm is proposed, which can significantly reduce the computation time of reliability evaluation in comparison with MCS. Also, the optimal number of clusters is obtained in the introduced method. Test results of applying the introduced method to the real 20 kV distribution network of the Barzok region of Kashan in Iran illustrate its effectiveness and advantages.","PeriodicalId":391511,"journal":{"name":"2020 10th Smart Grid Conference (SGC)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114668321","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: 4
Economic Evaluation of Using Battery Storage in Smart Grid with Distributed Generation Units in Day Ahead Market 提前日市场下分布式发电智能电网中电池储能的经济性评价
2020 10th Smart Grid Conference (SGC) Pub Date : 2020-12-16 DOI: 10.1109/SGC52076.2020.9335735
Seyyed Mohammad Sadegh Ghiasi, M. Nazari, S. Hosseinian, Mehrdad Bagheri Sanjareh
{"title":"Economic Evaluation of Using Battery Storage in Smart Grid with Distributed Generation Units in Day Ahead Market","authors":"Seyyed Mohammad Sadegh Ghiasi, M. Nazari, S. Hosseinian, Mehrdad Bagheri Sanjareh","doi":"10.1109/SGC52076.2020.9335735","DOIUrl":"https://doi.org/10.1109/SGC52076.2020.9335735","url":null,"abstract":"In this paper, the economic evaluation of using battery storage is done in a distribution network in the presence of distributed generation units for a private distribution company. For this purpose, a battery bank of lithium-ion with high energy and power density owned by distribution company in the network of IEEE 33-bus is used. The market is run based on retail model in which, there is a competition between distributed generation units in order to sell energy to the distribution company, and the distribution company is able to conclude contracts with manufacturers in the form of day ahead market. In order to complete economic assessment, various details including battery and converter efficiency as well as utilization costs are considered. In this short-term planning, unit commitment and load flow is done and the results and costs are compared in different scenarios with and without the battery bank. The simulations are done by GAMS software, and load dispatch constraints, the capacity of connection to the upstream network, and limitations of battery banks are considered.","PeriodicalId":391511,"journal":{"name":"2020 10th Smart Grid Conference (SGC)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127120106","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 Meter Placement in Distribution Feeders Using Branch-Current based Three-Phase State Estimation: A Quest for Observability Enhancement 基于支路电流三相状态估计的配电馈线电表优化配置:可观察性增强的探索
2020 10th Smart Grid Conference (SGC) Pub Date : 2020-12-16 DOI: 10.1109/SGC52076.2020.9335754
Farkhondeh Jabari, A. Bahmanyar, Morteza Shabanzadeh
{"title":"Optimal Meter Placement in Distribution Feeders Using Branch-Current based Three-Phase State Estimation: A Quest for Observability Enhancement","authors":"Farkhondeh Jabari, A. Bahmanyar, Morteza Shabanzadeh","doi":"10.1109/SGC52076.2020.9335754","DOIUrl":"https://doi.org/10.1109/SGC52076.2020.9335754","url":null,"abstract":"The electricity distribution networks are undergoing rapid changes. Integration of renewable energy sources and new loads demands to have a higher level of observability require more advanced protection and control schemes. Hence, the system operator should have online measurements of nodal voltages and branch currents to deal with these issues. Measuring all variables of real systems with a large number of nodes and lines as well as high cost of measurement devices are two major reasons for solving a three-phase state estimation with only a few meters. Therefore, optimal allocation of measurement devices is an effective solution to minimize the total investment cost while improving the quality of voltage and current estimates. This paper presents a novel approach for finding the best locations of the voltage meters and reducing the estimation error. A branch-current-based three-phase state estimator is coded to calculate the voltage profile according to the obtained branch currents and limit the relative errors between the calculated and actual nodal voltages. Moreover, a mesh adaptive direct search-based mixed-integer non-linear optimization algorithm is proposed to find the optimal locations of the voltage measurements and achieve the voltage magnitude and phase estimation errors of less than 1% and 5%, respectively. The proposed approach is suitably validated with simulations on a 25-node unbalanced distribution feeder. It is able to find the best locations of the voltage meters in calculation time less than 16 min. Moreover, the state estimation algorithm converges to more accurate nodal voltages and branch currents in less than 1 sec., especially in the case of optimally allocated meters.","PeriodicalId":391511,"journal":{"name":"2020 10th Smart Grid Conference (SGC)","volume":"24 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131288533","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
Proposing an Optimal Techno-Economic Scheme for a Hybrid Floating Photovoltaic-Hydro Power Plant 提出了一种浮式光伏-水力混合电站的最优技术经济方案
2020 10th Smart Grid Conference (SGC) Pub Date : 2020-12-16 DOI: 10.1109/SGC52076.2020.9335742
Amir Hossein Mohammadzadeh Niaki, Behrooz Davoodi
{"title":"Proposing an Optimal Techno-Economic Scheme for a Hybrid Floating Photovoltaic-Hydro Power Plant","authors":"Amir Hossein Mohammadzadeh Niaki, Behrooz Davoodi","doi":"10.1109/SGC52076.2020.9335742","DOIUrl":"https://doi.org/10.1109/SGC52076.2020.9335742","url":null,"abstract":"The use of solar photovoltaic panels has grown significantly in recent years. Floating solar photovoltaic (FPV) installations open up new opportunities for scaling up solar generating capacity. They can integrate with hydroelectric power plant (HPP) and have significant effects on supplying the electrical loads at different months of the year, especially hot and dry seasons. In this paper, the technical and economic parameters of a hybrid HPP FPV system in “Sardasht” region in West Azerbaijan province are studied using sensitivity analysis, and optimal designs in various scenarios are obtained for different values of the load, water levels behind the dam and equipment cost multipliers. In addition, by performing diverse simulations in HOMER software with more than 50000 studies, an optimal scheme is proposed to serve the maximum electrical load for different water levels in water shortage circumstances. The results confirm the effectiveness of the proposed techno-economic scheme.","PeriodicalId":391511,"journal":{"name":"2020 10th Smart Grid Conference (SGC)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133760793","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
Transient Stability Conditions Assessment in Smart Grids via New Lyapunov Approaches 基于新Lyapunov方法的智能电网暂态稳定条件评估
2020 10th Smart Grid Conference (SGC) Pub Date : 2020-12-16 DOI: 10.1109/sgc52076.2020.9335744
R. Farhangi, M. Beheshti
{"title":"Transient Stability Conditions Assessment in Smart Grids via New Lyapunov Approaches","authors":"R. Farhangi, M. Beheshti","doi":"10.1109/sgc52076.2020.9335744","DOIUrl":"https://doi.org/10.1109/sgc52076.2020.9335744","url":null,"abstract":"In recent years, due to the significant increase in power demand, stability issue has been considered as a remarkable challenge in power networks. In view of this fact, it could be mentioned that the presentation of accurate and definitive conditions to associate the stability of power system with related parameters and graph-theoretical characteristics of the underlying network, has been the main concern of control engineers. In this paper, utilizing the non-uniform model of the second-order Kuramoto oscillators, the stability conditions of smart grids with arbitrary interconnection topology and uncertain input power to generating units have been presented based on the explicit functions of physical characteristics of oscillators and network graph topology. The stability conditions have been obtained by two separate methods: the LaSalle's invariance principle and contraction property. The validity and the practical applicability of the developed transient stability conditions have been confirmed through the numerical simulations on the IEEE 39-bus system.","PeriodicalId":391511,"journal":{"name":"2020 10th Smart Grid Conference (SGC)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133365899","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
Probabilistic Voltage Instability Assessment of Smart Grid Based on Cross Entropy Concept 基于交叉熵概念的智能电网电压不稳定概率评估
2020 10th Smart Grid Conference (SGC) Pub Date : 2020-12-16 DOI: 10.1109/SGC52076.2020.9335734
Mohammad Reza Iranpour, M. A. Hejazi, R. Arghandeh
{"title":"Probabilistic Voltage Instability Assessment of Smart Grid Based on Cross Entropy Concept","authors":"Mohammad Reza Iranpour, M. A. Hejazi, R. Arghandeh","doi":"10.1109/SGC52076.2020.9335734","DOIUrl":"https://doi.org/10.1109/SGC52076.2020.9335734","url":null,"abstract":"Smart grids, which benefit from the deployment of new technologies such as renewable energy sources, electric vehicles, SCADA and PMU systems and etc., are becoming increasingly complex and uncertain, that can affect security and reliability of these systems. Power variation in generation units and loads demand causes variation in buses voltage that can reach to collapse point and cause instability in smart grids. Therefore instability assessment from buses voltage point of view under uncertain behaviors of smart grids is necessary and important for operation studies of these systems. In this paper by use of cross entropy concept, a new method for bus voltage instability assessment, in which stochastic and uncertain behavior of smart grids had been considered, is introduced. The distance between operational voltage and collapse point for each bus by use of Kullback Libeler divergence is evaluated to calculate instability of system voltage under uncertain operation of system. The IEEE 30-bus system has been analyzed by use of Monte Carlo simulation to evaluate the proposed method.","PeriodicalId":391511,"journal":{"name":"2020 10th Smart Grid Conference (SGC)","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127402510","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 Scheduling of Charging and Discharging of PHEVs for Load Profile Improvement Considering Uncertainties of DGs 考虑dg不确定性的插电式混合动力汽车负荷优化充放电调度
2020 10th Smart Grid Conference (SGC) Pub Date : 2020-12-16 DOI: 10.1109/SGC52076.2020.9335733
Ladan Esmaeeli, B. Zaker, A. Ghasemi, G. Gharehpetian
{"title":"Optimal Scheduling of Charging and Discharging of PHEVs for Load Profile Improvement Considering Uncertainties of DGs","authors":"Ladan Esmaeeli, B. Zaker, A. Ghasemi, G. Gharehpetian","doi":"10.1109/SGC52076.2020.9335733","DOIUrl":"https://doi.org/10.1109/SGC52076.2020.9335733","url":null,"abstract":"Due to increasing penetration of plug-in hybrid electric vehicles (PHEVs), non-optimal charging and discharging of them may lead to undesirable changes in load profile and network losses. In this paper, an optimal scheduling of charging and discharging of PHEVs is proposed to simultaneously improve the load profile and loss index. Another issue which is a challenge in the microgrids is uncertainties of distributed generations such as photovoltaics and wind turbines. Therefore, these uncertainties are also considered in the proposed scheduling. Genetic algorithm is used to minimize the proposed objective function. The proposed algorithm is applied to IEEE 33-bus test system to show its effectiveness.","PeriodicalId":391511,"journal":{"name":"2020 10th Smart Grid Conference (SGC)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124304055","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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