2022 7th IEEE Workshop on the Electronic Grid (eGRID)最新文献

Base Failure Rate Calculation for Submodules in Modular Multilevel Converters for MVDC Applications MVDC应用中模块化多电平变换器子模块的基本故障率计算

2022 7th IEEE Workshop on the Electronic Grid (eGRID) Pub Date : 2022-11-29 DOI: 10.1109/eGRID57376.2022.9990013

Yumeng Tian, G. Konstantinou

引用次数: 2

Off-grid EV charging stations to reduce the impact of charging demand on the electricity grid 离网电动汽车充电站减少充电需求对电网的影响

2022 7th IEEE Workshop on the Electronic Grid (eGRID) Pub Date : 2022-11-29 DOI: 10.1109/eGRID57376.2022.9990019

James O. N. Wilson, T. Lie

引用次数: 3

Investigation of Geomagnetically Induced Currents (GICs) Susceptibility of Different Three-Phase Power Transformer Cores 不同三相电力变压器铁心地磁感应电流敏感性的研究

2022 7th IEEE Workshop on the Electronic Grid (eGRID) Pub Date : 2022-11-29 DOI: 10.1109/eGRID57376.2022.9990010

Xin Yi Teh, Yingzhen Xue, Zijian Liang, Joseph Ramirez, A. Lapthorn

{"title":"Investigation of Geomagnetically Induced Currents (GICs) Susceptibility of Different Three-Phase Power Transformer Cores","authors":"Xin Yi Teh, Yingzhen Xue, Zijian Liang, Joseph Ramirez, A. Lapthorn","doi":"10.1109/eGRID57376.2022.9990010","DOIUrl":"https://doi.org/10.1109/eGRID57376.2022.9990010","url":null,"abstract":"This paper investigates the susceptibility of different three-phase power transformer cores against Geomagnetically Induced Current (GICs). GIC, which is a quasi-DC current induced in the grid due to extreme space weather, will saturate power transformers due to half-cycle saturation caused by zero sequence fluxes. 15kVA small-scale three-phase three-limb, three-phase five-limb, and three single-phase transformers were designed and built. Then, the transformers were simulated using PSCAD/EMTDC to obtain the current and voltage waveforms under GIC. After that, the transformers underwent normal AC load testing at 25%, 50%, 75% and 100% load. This provides a temperature curve and waveforms comparison with the results under GIC conditions, which is modelled as DC injection on the secondary neutral point of the transformer. Lastly, the DC injection test was conducted. The temperature of the transformers increases during DC injection as the total circulating current in the transformers increases. Even harmonics enhancement and increase in reactive power demand are also observed due to transformers saturation under GIC. The results align with the zero-sequence flux theory and simulation waveforms, which suggest that the three single-phase transformers are the most susceptible to GIC, followed by the three-phase five-limb and the three-phase three-limb transformers.","PeriodicalId":421600,"journal":{"name":"2022 7th IEEE Workshop on the Electronic Grid (eGRID)","volume":"142 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132264526","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

A Bagging Long Short-term Memory Network for Financial Transmission Rights Forecasting 输变电权预测的套袋长短期记忆网络

2022 7th IEEE Workshop on the Electronic Grid (eGRID) Pub Date : 2022-11-29 DOI: 10.1109/eGRID57376.2022.9990015

Tong Cai, Chenye Wu, Jiasheng Zhang

{"title":"A Bagging Long Short-term Memory Network for Financial Transmission Rights Forecasting","authors":"Tong Cai, Chenye Wu, Jiasheng Zhang","doi":"10.1109/eGRID57376.2022.9990015","DOIUrl":"https://doi.org/10.1109/eGRID57376.2022.9990015","url":null,"abstract":"A financial transmission right (FTR) is a financial derivative based on the differences between locational marginal prices (LMPs) of different nodes. FTRs are introduced into the electricity market to help market participants hedge against the risks of transmission congestion. Also, virtual bidders with advanced computational power and forecasting capabilities are encouraged to participate in the FTRs market. This enables FTRs a good crowd-sourcing indicator of transmission congestion. Hence, FTRs prediction can be very valuable to various stakeholders in the electricity sector. Noticing the value of FTRs, we propose Univariate Long Short-term Memory (ULSTM) and Multivariate Long Short-term Memory (MLSTM) networks for FTRs forecasting. To find out applicable predictors, we conduct ablation studies that compare the prediction accuracy of the Long Short-term Memory (LSTM) networks by varying features and input lag lengths. Although the incorporation of associated features generally improves the forecast accuracy, the periodic noises of these features may ruin the forecasting ability of our proposed network. To smooth out the noises, we further propose a bagging method to enhance our prediction networks.","PeriodicalId":421600,"journal":{"name":"2022 7th IEEE Workshop on the Electronic Grid (eGRID)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125408173","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

Energy Management for Solar PV Generation with Contactless Power Transfer 非接触式电力传输的太阳能光伏发电能源管理

2022 7th IEEE Workshop on the Electronic Grid (eGRID) Pub Date : 2022-11-29 DOI: 10.1109/eGRID57376.2022.9990006

A. Ghosh, A. Ukil, A. Hu

引用次数: 2

Multilayer Networks Framework Concept applied to Hybrid MV AC/DC Network Topologies 多层网络框架概念在混合中压交直流网络拓扑中的应用

2022 7th IEEE Workshop on the Electronic Grid (eGRID) Pub Date : 2022-11-29 DOI: 10.1109/eGRID57376.2022.9990017

Andre N. Cuppen, T. Hoang, N. Nair, A. Ukil

{"title":"Multilayer Networks Framework Concept applied to Hybrid MV AC/DC Network Topologies","authors":"Andre N. Cuppen, T. Hoang, N. Nair, A. Ukil","doi":"10.1109/eGRID57376.2022.9990017","DOIUrl":"https://doi.org/10.1109/eGRID57376.2022.9990017","url":null,"abstract":"The increasing growth of DC grids in medium voltage AC networks and their interconnections is expected to become a challenge in modelling that exceeds the tools available today. As opposed to mature developed three-phase AC network topologies spanning from generation, transmission, to distribution, the integration of DC technologies into existing AC networks will create various configurations of hybrid AC/DC networks that can create difficulty for network modelling and operation. Multilayer networks frameworks are a promising tool to enable scholars and engineers alike to understand and manage the hybrid AC/DC networks of the future. This paper aims at adopting the general concept of multilayer networks for systematically describing various topologies of hybrid AC/DC networks in terms of the formalized dictionary of terminology. We describe hybrid AC/DC networks in terms of the formalized dictionary of terminology. Finally, several examples are given; from the simplest, to the common industry reviewed AC/DC benchmark model. Several examples are given ranging from the simplest, to the common industry reviewed AC/DC benchmark model.","PeriodicalId":421600,"journal":{"name":"2022 7th IEEE Workshop on the Electronic Grid (eGRID)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127671639","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

Enhanced Grid-tie Converter Control Under Unbalanced Conditions with no PLL 非平衡条件下无锁相环的并网变换器增强控制

2022 7th IEEE Workshop on the Electronic Grid (eGRID) Pub Date : 2022-11-29 DOI: 10.1109/eGRID57376.2022.9990009

Hailong Wang, Yonghe Liu, N. Watson

引用次数: 0

Design and Implementation of Non-Isolated Switched-Capacitor SEPIC Converters Using Duality Principle 基于对偶原理的非隔离开关电容SEPIC变换器设计与实现

2022 7th IEEE Workshop on the Electronic Grid (eGRID) Pub Date : 2022-11-29 DOI: 10.1109/eGRID57376.2022.9990028

Xiu-Wei Su, H. Liao, Kai-Chieh Peng, Shang-Lin Tsai, Jiann-Fuh Chen

{"title":"Design and Implementation of Non-Isolated Switched-Capacitor SEPIC Converters Using Duality Principle","authors":"Xiu-Wei Su, H. Liao, Kai-Chieh Peng, Shang-Lin Tsai, Jiann-Fuh Chen","doi":"10.1109/eGRID57376.2022.9990028","DOIUrl":"https://doi.org/10.1109/eGRID57376.2022.9990028","url":null,"abstract":"If the renewable source is connected to utility, a current source (CS) is required. The conventional converter design is based on a voltage source (VS). A voltage source has a dual relationship with a source, so this paper takes the dual principle as the basis and uses the dual approach to propose converters based on the current source. The duality theory can be used to convert the switched inductor (SI) structure into a switched capacitor (SC) structure, that is convert a step-up voltage topology into a step-up current topology.In this paper, taking the Single Ended Primary Inductive Converter (SEPIC) converter as an example, the conventional voltage source SEPIC converter is converted into a current source SEPIC converter, and then the capacitor is replaced by a step-down switched capacitor structure to form a current source switched capacitor (CSSC) converter. The input current of the proposed topology is Iin=1 A~5 A, and the switching frequency is 100 kHz. Maximum output current Io is 15 A, and the output power is 1125 W. The efficiency can be at least 90.62 %.","PeriodicalId":421600,"journal":{"name":"2022 7th IEEE Workshop on the Electronic Grid (eGRID)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130215708","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

Comparison of Low-Voltage AC and DC Distribution Networks for EV Charging 电动汽车充电用低压交直流配电网的比较

2022 7th IEEE Workshop on the Electronic Grid (eGRID) Pub Date : 2022-11-29 DOI: 10.1109/eGRID57376.2022.9990014

Wayne Huynh, T. Hoang, A. Ukil, N. Nair

引用次数: 2

Platform for Querying CIM-based Models and Data of the Electrical Distribution Network 基于cim的配电网模型和数据查询平台

2022 7th IEEE Workshop on the Electronic Grid (eGRID) Pub Date : 2022-11-29 DOI: 10.1109/eGRID57376.2022.9990020

S. Phadnis, N. Nair

{"title":"Platform for Querying CIM-based Models and Data of the Electrical Distribution Network","authors":"S. Phadnis, N. Nair","doi":"10.1109/eGRID57376.2022.9990020","DOIUrl":"https://doi.org/10.1109/eGRID57376.2022.9990020","url":null,"abstract":"Network models of a modern distribution grid or smart grids underlie almost all its planning and forecasting functions. Data from these models and other enterprise systems are combined using multiple interfaces and data schemas to build an integrated model specific to the software application being developed. The diversity of the network models requires the application developers to develop codes for further processing. This process presents challenges in terms of time and resource to the developers. This paper, therefore, aims at proposing a new software platform with for storing, querying and updating the distribution network model that integrates data from disparate IT and OT systems (for example: GIS, historian systems, and master data) based. Other important asset and connectivity information is transferred from XML-based CIM models. The primary focus of the platform is at those developers of other software systems that need asset and connectivity information of the network, along with spatial and temporal data. It is also possible to query with switchable parameters to represent the network when switching operations are performed.","PeriodicalId":421600,"journal":{"name":"2022 7th IEEE Workshop on the Electronic Grid (eGRID)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133478559","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