2021 IEEE 12th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)最新文献_第2页

Grid Transient Stability Improvement with Increased PV Availability: A PV Inverter Reliability Enhancement Approach 提高光伏可用性改善电网暂态稳定性:一种光伏逆变器可靠性增强方法

2021 IEEE 12th International Symposium on Power Electronics for Distributed Generation Systems (PEDG) Pub Date : 2021-06-28 DOI: 10.1109/PEDG51384.2021.9494242

Jianzhe Liu, Jiangbiao He, Bo Chen, Yichen Zhang, F. Qiu

{"title":"Grid Transient Stability Improvement with Increased PV Availability: A PV Inverter Reliability Enhancement Approach","authors":"Jianzhe Liu, Jiangbiao He, Bo Chen, Yichen Zhang, F. Qiu","doi":"10.1109/PEDG51384.2021.9494242","DOIUrl":"https://doi.org/10.1109/PEDG51384.2021.9494242","url":null,"abstract":"PV generation is a key contributor to a carbon-neutral power system. With proper planning and operation, it has significant potential to improve system reliability as well. Nevertheless, solar availability is volatile which poses a challenge to ensure an uninterrupted grid-supporting performance. One critical factor leading to the loss of PV generation is PV inverter malfunctioning as it is the most frequent fault scenario in PV systems. Despite this, there is still inadequate study into PV inverter reliability, especially for online non-intrusive health monitoring methods. In addition, effective PV planning calls for quantitative study into PV impact on grid reliability. This paper is one of the first efforts to bridge this gap. We first reveal the significance of PV generation to grid reliability by studying its impact on grid transient performance in both DC and AC networks. It can work as an input to PV planning problems, for example, to determine the optimal siting and operation strategies. Then, we develop an online monitoring algorithm to provide situational awareness information into PV inverter health. At last, we develop fault-tolerant control strategies for PV inverters to enhance PV availability. A case study verifies the proposed work.","PeriodicalId":374979,"journal":{"name":"2021 IEEE 12th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130451322","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

Hardware-in-the-Loop Testbed for Cyber-Physical Security of Photovoltaic Farms 光伏电站网络物理安全硬件在环测试平台

2021 IEEE 12th International Symposium on Power Electronics for Distributed Generation Systems (PEDG) Pub Date : 2021-06-28 DOI: 10.1109/PEDG51384.2021.9494258

Jinan Zhang, Lulu Guo, Jin Ye

引用次数: 1

Methodology for the Analysis of Thermal Runaway in Electric Vehicle Batteries 电动汽车电池热失控分析方法

2021 IEEE 12th International Symposium on Power Electronics for Distributed Generation Systems (PEDG) Pub Date : 2021-06-28 DOI: 10.1109/PEDG51384.2021.9494210

Peter Wilson, Oliver Holt, C. Vagg

引用次数: 1

Three-Phase Matrix-Based Isolated AC-DC Converter for Battery Energy Storage System 基于三相矩阵的电池储能系统隔离型交直流变换器

2021 IEEE 12th International Symposium on Power Electronics for Distributed Generation Systems (PEDG) Pub Date : 2021-06-28 DOI: 10.1109/PEDG51384.2021.9494235

Jaydeep Saha, R. Kumar Singh, Sanjib Kumar Panda

引用次数: 5

High-Fidelity Models and Fast EMT Simulation Algorithms for Isolated Multi-port Autonomous Reconfigurable Solar power plant (MARS) 孤立多端口自主可重构太阳能电站(MARS)高保真模型与快速EMT仿真算法

2021 IEEE 12th International Symposium on Power Electronics for Distributed Generation Systems (PEDG) Pub Date : 2021-06-28 DOI: 10.1109/PEDG51384.2021.9494179

Qianxue Xia, S. Debnath, P. R. V. Marthi, S. Marti, M. Saeedifard

{"title":"High-Fidelity Models and Fast EMT Simulation Algorithms for Isolated Multi-port Autonomous Reconfigurable Solar power plant (MARS)","authors":"Qianxue Xia, S. Debnath, P. R. V. Marthi, S. Marti, M. Saeedifard","doi":"10.1109/PEDG51384.2021.9494179","DOIUrl":"https://doi.org/10.1109/PEDG51384.2021.9494179","url":null,"abstract":"The integration of hybrid photovoltaic (PV) and energy storage system (ESS) based plants has become a promising way of solving the intermittency of PV plants and providing frequency support to the power grid. The multi-port autonomous reconfigurable solar power plant (MARS) can integrate the PV systems and ESSs to an ac grid and dc lines. The proposed isolated MARS incorporates an isolated converter that connects to the PV arrays and is based on the dual active bridge (DAB) converter. The high frequency switching in the DAB and the means to control the DAB converter using delays between switching signals lead to the need for a small timestep in simulations. Moreover, several hundreds of modules that include a DAB converter are present in the MARS. The small timestep and the presence of several hundreds of modules lead to a significant rise in the overall simulation time. To address this issue, simulation algorithms like numerical stiffness-based hybrid discretization and the hysteresis relaxation technique are applied to the switched system model of isolated MARS. Additionally, an event-driven interpolating method is introduced to help increase the minimum timestep to simulate the conventional DAB converter model while maintaining high accuracy in the simulation results. The developed model is validated by comparison with its reference model built in the PSCAD/EMTDC and MATLAB software environments using library components.","PeriodicalId":374979,"journal":{"name":"2021 IEEE 12th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)","volume":"107 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132260157","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: 7

Simplified Current Tracking Strategy for LCL-Based Rectifier under Unbalanced Grid Voltage Condition 电网电压不平衡条件下lcl整流器的简化电流跟踪策略

2021 IEEE 12th International Symposium on Power Electronics for Distributed Generation Systems (PEDG) Pub Date : 2021-06-28 DOI: 10.1109/PEDG51384.2021.9494215

Xiang Gao, Jie Chen, Way Wang, Tong Liu, Alian Chen, Qicai Ren

引用次数: 1

Hybrid Bypass Protection of Hybrid Smart Transformers for Advanced Grid Support 先进电网支持下混合智能变压器的混合旁路保护

2021 IEEE 12th International Symposium on Power Electronics for Distributed Generation Systems (PEDG) Pub Date : 2021-06-28 DOI: 10.1109/PEDG51384.2021.9494212

Moazzam Nazir, J. Enslin, K. Burkes

{"title":"Hybrid Bypass Protection of Hybrid Smart Transformers for Advanced Grid Support","authors":"Moazzam Nazir, J. Enslin, K. Burkes","doi":"10.1109/PEDG51384.2021.9494212","DOIUrl":"https://doi.org/10.1109/PEDG51384.2021.9494212","url":null,"abstract":"Due to the rapid transformation of traditional grid into a complex meshed network along with an exponential integration of volatile distributed energy resources (DERs); wind and photovoltaic (PV) farms, and converter-based loads; electric vehicles (EVs) etc., traditional grid operation strategies are stressed, and mitigation measures are required. Accordingly, a myriad of dynamic mitigation devices have been proposed in the last few decades where these devices are installed at strategic points in the grid. Transformer-less power electronics-based modules, integrated between the neutral and substation ground of traditional transformers, have been proposed introducing a variety of advanced grid mitigation and support features; DC elimination, voltage regulation, voltage and impedance balancing, harmonics isolation and power flow control. However, the protection of these series-connected modules against high voltage development during ground faults or inrush currents is critical as it could damage these converter-based mitigation devices or exceed the transformer BIL rating, thus, severely threatening the energy security. This paper presents an effective transformer and the module protection scheme utilizing a hybrid AC/DC solid-state switch. The proposed scheme is evaluated on an emulated 25-kVA, 7.2kV/240V single-phase hybrid smart transformer (HST), utilizing Typhoon HIL that verifies its promising performance.","PeriodicalId":374979,"journal":{"name":"2021 IEEE 12th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124157326","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

Cybersecurity Analytics for Virtual Power Plants 虚拟电厂的网络安全分析

2021 IEEE 12th International Symposium on Power Electronics for Distributed Generation Systems (PEDG) Pub Date : 2021-06-28 DOI: 10.1109/PEDG51384.2021.9494255

Ahmad Khan, Mohsen Hosseinzadehtaher, M. Shadmand, S. Mazumder

{"title":"Cybersecurity Analytics for Virtual Power Plants","authors":"Ahmad Khan, Mohsen Hosseinzadehtaher, M. Shadmand, S. Mazumder","doi":"10.1109/PEDG51384.2021.9494255","DOIUrl":"https://doi.org/10.1109/PEDG51384.2021.9494255","url":null,"abstract":"This article presents a framework to realize cybersecure virtual power plant (VPP). The foundation of this cybersecurity analytics is established on a developed normal operation region identification methodology. This normal operation region is exploited as a confirmation strategy to distinguish malicious set-points that are determined by VPP cyber-layer. These malicious set-points are spawned by a cyber-attacker influencing the VPP cyber-layer. The normal operation region is based on a derived one-to-one mapping between the network internal point of common coupling (PCC) bus voltages and the cyber-layer generated set-points. This derived mapping is compared with an inverse mapping through internal PCC bus voltage monitoring for anomalies. Once, an inconsistency is witnessed by the cybersecurity analytics between the one-to-one mapping and the inverse mapping, then the initial voltage anomaly detected by the monitoring system is due to an intrusion. The developed theory is validated through simulation of a cyber attacker gradually violating the network stability boundary through manipulating the operation set-points.","PeriodicalId":374979,"journal":{"name":"2021 IEEE 12th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117182287","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

Small-Signal Impedance Analysis of the Impact of Grid-Forming Controllers on their DC and AC Dynamics 成网控制器对其直流和交流动力学影响的小信号阻抗分析

2021 IEEE 12th International Symposium on Power Electronics for Distributed Generation Systems (PEDG) Pub Date : 2021-06-28 DOI: 10.1109/PEDG51384.2021.9494190

Ishita Ray, L. Tolbert

{"title":"Small-Signal Impedance Analysis of the Impact of Grid-Forming Controllers on their DC and AC Dynamics","authors":"Ishita Ray, L. Tolbert","doi":"10.1109/PEDG51384.2021.9494190","DOIUrl":"https://doi.org/10.1109/PEDG51384.2021.9494190","url":null,"abstract":"Grid-forming converters have recently been gaining more interest as a viable alternative to replace bulk synchronous generation for supporting and sustaining medium to low voltage grids. While the ability of grid-connected converters to support bulk generation has been thoroughly investigated, the capacity and behavior of converters that would replace bulk generation are not well defined. In an inverter-dominated system with one or more grid-forming inverters, maintaining dc-link stability is equally, if not more, important as maintaining frequency stability. To this end, and to better understand the behavior of grid-forming converters with different types of controllers, this paper derives the small-signal models for converters with nested and single-loop control structures, and compares their input and output impedance characteristics with and without synchronization. The analysis of input impedance provides insight into the impact of each grid-forming converter controller on upstream (dc) elements such as the dc-link and non-stiff dc sources, while the analysis of output impedance provides insight into the interaction of the controller with downstream (ac) elements of the grid such as the line impedance and loads. The analytical results are verified using simulation and experimental measurements.","PeriodicalId":374979,"journal":{"name":"2021 IEEE 12th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)","volume":"20 15","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120847028","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

Hybrid Bar-Delta Filter-Based Health Monitoring for Multicell Lithium-Ion Batteries using an Internal Short-Circuit Cell Model 基于混合条形-三角滤波器的多芯锂离子电池内部短路模型健康监测

2021 IEEE 12th International Symposium on Power Electronics for Distributed Generation Systems (PEDG) Pub Date : 2021-06-28 DOI: 10.1109/PEDG51384.2021.9494186

Taesic Kim, Chungu Lee, Justin Ochoa, Hyunjun Lee, Kyoung-Tak Kim, Joung-Hu Park

引用次数: 0