2020 International Conference on Smart Energy Systems and Technologies (SEST)最新文献_第2页

Clustering Time Series over Electrical Networks 电力网络上的聚类时间序列

2020 International Conference on Smart Energy Systems and Technologies (SEST) Pub Date : 2020-09-01 DOI: 10.1109/SEST48500.2020.9203491

D. Vankov, I. Zorin, David Pozo

引用次数: 2

Power Loss Reduction in the Energy Resource Scheduling of a Local Energy Community 本地能源社区能源调度中的电能损耗降低

2020 International Conference on Smart Energy Systems and Technologies (SEST) Pub Date : 2020-09-01 DOI: 10.1109/SEST48500.2020.9203444

Maria Maddalena Gambini, C. Orozco, A. Borghetti, F. Tossani

引用次数: 2

DC Voltage Level–Based Power Supply Prioritization in Multi–Inverter System: Marine Use Case 多逆变器系统中基于直流电压电平的电源优先排序:船舶用例

2020 International Conference on Smart Energy Systems and Technologies (SEST) Pub Date : 2020-09-01 DOI: 10.1109/SEST48500.2020.9203027

Timo M. R. Alho, H. Laaksonen

{"title":"DC Voltage Level–Based Power Supply Prioritization in Multi–Inverter System: Marine Use Case","authors":"Timo M. R. Alho, H. Laaksonen","doi":"10.1109/SEST48500.2020.9203027","DOIUrl":"https://doi.org/10.1109/SEST48500.2020.9203027","url":null,"abstract":"This paper introduces a multi–inverter system power supply prioritization method based on the system’s DC voltage level. The purpose of the functionality is to first utilize the more desirable power source in the inverters’ intermediate DC circuit to the fullest, before loading the less desirable one. This is done without any external controllers but rather utilizing existing inverter functionalities in a novel manner. First, the basic principle of the functionality is explained and then the operation is demonstrated in the marine environment by presenting monitoring data from a ship utilizing said function in 1.7 MW shaft generator system with 2.0 MW thruster connected to the intermediate DC circuit. The functionality enables to use the full benefits of the shaft generator as more fuel efficient power source, prior to the rest of the thruster’s required power is taken from ship’s auxiliary generators. This lowers the overall fuel consumption of the ship and helps to keep the ship’s AC grid stable as only the power the shaft generator is not able to provide for the thruster is taken from the AC grid.","PeriodicalId":302157,"journal":{"name":"2020 International Conference on Smart Energy Systems and Technologies (SEST)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127876682","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

Congestion Management in LV Grids Using Static and Dynamic EV Smart Charging 基于静态和动态电动汽车智能充电的低压电网拥塞管理

2020 International Conference on Smart Energy Systems and Technologies (SEST) Pub Date : 2020-09-01 DOI: 10.1109/SEST48500.2020.9203191

Martijn Verhoog, N. Brinkel, T. Alskaif

{"title":"Congestion Management in LV Grids Using Static and Dynamic EV Smart Charging","authors":"Martijn Verhoog, N. Brinkel, T. Alskaif","doi":"10.1109/SEST48500.2020.9203191","DOIUrl":"https://doi.org/10.1109/SEST48500.2020.9203191","url":null,"abstract":"In recent years, the adoption of electric vehicle has increased steadily, posing substantial problems in the low voltage grid. Among these problems are grid congestion and voltage instability. This study proposes a dynamic smart charging strategy based on a constant impedance load flow model, in which the optimal electric vehicle charging power is based on the available grid capacity. The dynamic charging profile is compared to a static charging profile and business as usual charging in a case study on a representative low voltage grid. Simulations are made with projections for electric vehicle charging, residential electricity demand and photovoltaic generation for 2018, 2030 and 2050. The results of the case study show that no grid congestion occurs in the 2018 scenario, and little in the 2030 scenario, meaning that the current grid infrastructure is well- suited for the electric vehicle charging demand and that the business as usual and static smart charging profiles result in an underutilization of the grid capacity. Grid congestion occurs substantially more frequently in the 2050 scenario, but the dynamic smart charging profile results in a greater utilization of the grid capacity compared to the alternatives.","PeriodicalId":302157,"journal":{"name":"2020 International Conference on Smart Energy Systems and Technologies (SEST)","volume":"80 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113995393","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

Diagnosis of Open-Phase Faults and High Resistance Connections in Six-Phase PMSM Drives 六相永磁同步电动机断相故障和高阻连接的诊断

2020 International Conference on Smart Energy Systems and Technologies (SEST) Pub Date : 2020-09-01 DOI: 10.1109/SEST48500.2020.9203465

P. Gonçalves, S. Cruz, A. Mendes

{"title":"Diagnosis of Open-Phase Faults and High Resistance Connections in Six-Phase PMSM Drives","authors":"P. Gonçalves, S. Cruz, A. Mendes","doi":"10.1109/SEST48500.2020.9203465","DOIUrl":"https://doi.org/10.1109/SEST48500.2020.9203465","url":null,"abstract":"Although multiphase machines can operate with one or more disabled phases, the diagnosis of an open-phase fault (OPF) is important in order to reconfigure the control strategy. High resistance connection faults (HRCFs) are created by unsecured and damaged connections and if not detected early on can evolve to OPFs. In the case of six-phase machines, currently available diagnostic methods consider that secondary current components are zero in healthy operation. However, control over these current components is necessary to take advantage of the additional degrees of freedom in six-phase machines. Hence, this paper proposes a fault diagnosis method for both OPF and HRCFs for six-phase PMSM drives, which considers the operation of the machine with non-zero references for the secondary current components. The proposed method monitors the mean value of the reference current errors and the second order harmonic of the secondary currents in a synchronous reference frame. The included simulation results, obtained with Matlab/Simulink software, and experimental results demonstrate the effectiveness of the proposed diagnostic method.","PeriodicalId":302157,"journal":{"name":"2020 International Conference on Smart Energy Systems and Technologies (SEST)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114371521","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

Optimal Service Restoration in Active Distribution Networks Considering Microgrid Formation and Voltage Control Devices 考虑微电网形成和电压控制装置的有源配电网最优业务恢复

2020 International Conference on Smart Energy Systems and Technologies (SEST) Pub Date : 2020-09-01 DOI: 10.1109/SEST48500.2020.9203393

Leonardo H. Macedo, G. Muñoz-Delgado, J. Contreras, R. Romero

{"title":"Optimal Service Restoration in Active Distribution Networks Considering Microgrid Formation and Voltage Control Devices","authors":"Leonardo H. Macedo, G. Muñoz-Delgado, J. Contreras, R. Romero","doi":"10.1109/SEST48500.2020.9203393","DOIUrl":"https://doi.org/10.1109/SEST48500.2020.9203393","url":null,"abstract":"This paper presents a new mixed-integer linear programming model for the optimal restoration of active distribution networks during permanent fault events considering not only network reconfiguration but also the islanded operation of distributed generation, thereby giving rise to the formation of microgrids. To that end, the proposed approach accounts for both the black-start capacity of generators and the connection of multiple generators to the same microgrid. Moreover, voltage control devices such as on-load tap changers, voltage regulators, and capacitor banks are also considered in the formulation. The model is driven by the maximization of the restored load after single or multiple faults in the network using the minimum number of switching operations and modifications in the statuses of the voltage control devices. The proposed model is implemented in the mathematical modeling language AMPL and solved with the Gurobi solver. Tests are conducted using a 53-node distribution system considering different fault locations. Numerical results show the relevant effect of microgrid formation and voltage control in the restoration process. Simulations also prove the effective performance of the proposed approach in terms of computation time.","PeriodicalId":302157,"journal":{"name":"2020 International Conference on Smart Energy Systems and Technologies (SEST)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115170416","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: 11

Ultrafast restoration after nationwide blackout: concept, principles & example of application 全国停电后的超快恢复:概念、原理及应用实例

2020 International Conference on Smart Energy Systems and Technologies (SEST) Pub Date : 2020-09-01 DOI: 10.1109/SEST48500.2020.9203071

Julius Bosch, J. M. Aniceto, Ken P. Brunner

引用次数: 2

Exploratory Visual Analytics for the European Single Intra-Day Coupled Electricity Market 欧洲单日耦合电力市场的探索性可视化分析

2020 International Conference on Smart Energy Systems and Technologies (SEST) Pub Date : 2020-09-01 DOI: 10.1109/SEST48500.2020.9203043

Sumeyra Demir, K. Kok, N. Paterakis

引用次数: 2

Sizing Electric Battery Storage System for Prosumer Villas 面向产消级别墅的蓄电池储能系统选型

2020 International Conference on Smart Energy Systems and Technologies (SEST) Pub Date : 2020-09-01 DOI: 10.1109/SEST48500.2020.9203343

C. Andresen, H. Sæle, M. Degefa

引用次数: 1

Benefits of On-Load Tap Changers Coordinated Operation for Voltage Control in Low Voltage Grids with High Photovoltaic Penetration 有载分接开关协同运行对高光伏渗透低压电网电压控制的好处

2020 International Conference on Smart Energy Systems and Technologies (SEST) Pub Date : 2020-09-01 DOI: 10.1109/SEST48500.2020.9203231

A. Ciocia, G. Chicco, F. Spertino

{"title":"Benefits of On-Load Tap Changers Coordinated Operation for Voltage Control in Low Voltage Grids with High Photovoltaic Penetration","authors":"A. Ciocia, G. Chicco, F. Spertino","doi":"10.1109/SEST48500.2020.9203231","DOIUrl":"https://doi.org/10.1109/SEST48500.2020.9203231","url":null,"abstract":"The transformers that connect the Medium Voltage (MV) grid with the Low Voltage (LV) system are classically equipped with tap changers with tap positions variable only at no load. The evolution of the technologies and the increasing needs of controlling the voltage profile in the LV networks require better control capabilities. The use of MV/LV transformers with On Load Tap Changers (OLTCs) is increasing, to provide further control capabilities in LV grids with high penetration of distributed generation. In this paper, centralised voltage control is evaluated by simulating the operation of an OLTC installed inside the MV/LV transformer substation. The goal is to stabilise the voltage at the LV bus of the transformer. It is supposed that the OLTC does not communicate with other devices in the grid; thus, it does not know the voltage levels at the other nodes. At the same time, the distributed PV inverters control the voltage in their grid connection points without any information about the other nodes. The expected benefits of exploiting OLTCs in LV grids with high photovoltaic (PV) penetration are determined through indicators that assess the voltage deviations with energy flows, the global overvoltage or undervoltage persistence, and the overvoltage or undervoltage duration. The results show that the use of an OLTC can help the mitigation of voltage fluctuations, especially limiting the undervoltages. The effectiveness strongly depends on the control parameters, especially the maximum number of daily taps.","PeriodicalId":302157,"journal":{"name":"2020 International Conference on Smart Energy Systems and Technologies (SEST)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128909587","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