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Microgrid Sizing and Operation 微电网的规模和运行
2021 IEEE Electrical Power and Energy Conference (EPEC) Pub Date : 2021-10-22 DOI: 10.1109/EPEC52095.2021.9621352
Anindita Golder, F. Bouffard
{"title":"Microgrid Sizing and Operation","authors":"Anindita Golder, F. Bouffard","doi":"10.1109/EPEC52095.2021.9621352","DOIUrl":"https://doi.org/10.1109/EPEC52095.2021.9621352","url":null,"abstract":"The increasing penetration of renewable energy sources and electric vehicles introduce challenges to the methods used in the design and operation of conventional power systems. One major problem is the inherent variability present in them as it introduces supply and demand imbalance. To ensure efficient usage of all resources in the microgrid, it is important that the microgrid is sized appropriately with a proper energy management system to ensure meeting the supply and demand balance. This paper proposes the sizing and operation of microgrid in three steps. In the first step, typical days representing the annual profiles are generated which is then used in a linear optimization problem to select and size the microgrid assets (second step). The results of the design formulation are then used to develop a decision tree-based energy management system (third step). The proposed methods are then used for a remote mine as a case study.","PeriodicalId":102311,"journal":{"name":"2021 IEEE Electrical Power and Energy Conference (EPEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116984471","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
Fault-Tolerant Performance Enhancement of DC-DC Converters with High-Speed Fault Clearing-unit based Redundant Power Switch Configurations 基于冗余电源开关配置的高速故障清除单元增强DC-DC变换器容错性能
2021 IEEE Electrical Power and Energy Conference (EPEC) Pub Date : 2021-10-22 DOI: 10.1109/EPEC52095.2021.9621756
Tohid Rahimi, H. Jahan, Armin Abadifard, M. Akbari, Pedram Ghavidel, Masoud Farhadi, S. Hosseini
{"title":"Fault-Tolerant Performance Enhancement of DC-DC Converters with High-Speed Fault Clearing-unit based Redundant Power Switch Configurations","authors":"Tohid Rahimi, H. Jahan, Armin Abadifard, M. Akbari, Pedram Ghavidel, Masoud Farhadi, S. Hosseini","doi":"10.1109/EPEC52095.2021.9621756","DOIUrl":"https://doi.org/10.1109/EPEC52095.2021.9621756","url":null,"abstract":"Fault detection and reconfiguration in fault-tolerant converters may complicated and necessitate using all-purpose microprocessors and high-speed sensors to guarantee the satisfactory performance of power converters. Therefore, providing fault-clearing feature without increasing the processing and sensing burdens and reducing the transition time between faulty to normal state are of great importance. This research proposes a new redundant-switch configuration to address the mentioned challenges. The proposed configuration uses one diode and two fuses to eliminate the faulty switch and replace the reserve one, spontaneously. Open-circuit fault in the proposed configuration is clarified instantly. Moreover, the short-circuit fault is dealt as an open-circuit fault by using a fuse. Thus, the fault-tolerant feature of the proposed switch configuration is achieved without using a complex, versatile and multifaceted fault managing unit. Resultant behaviors of the case studies are derived using MATLAB/SIMULINK. Also, steady-state thermal distribution of power switches which are implemented on a monolith heat sink, analyzed in COMSOL Multi-physics environment. Finally, the viability of the proposed configuration is demonstrated by a laboratory-scaled prototype.","PeriodicalId":102311,"journal":{"name":"2021 IEEE Electrical Power and Energy Conference (EPEC)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124972950","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
Framework for a Real-Time Autonomous Cascading Failure Prediction Model 一种实时自治级联故障预测模型框架
2021 IEEE Electrical Power and Energy Conference (EPEC) Pub Date : 2021-10-22 DOI: 10.1109/EPEC52095.2021.9621481
Mohamed O. Mahgoub, S. M. Mazhari, C. Chung, S. Faried
{"title":"Framework for a Real-Time Autonomous Cascading Failure Prediction Model","authors":"Mohamed O. Mahgoub, S. M. Mazhari, C. Chung, S. Faried","doi":"10.1109/EPEC52095.2021.9621481","DOIUrl":"https://doi.org/10.1109/EPEC52095.2021.9621481","url":null,"abstract":"Blackouts cause significant damage to both consumers and utilities. Since blackouts typically start as a cascading failure, the prediction of such a cascade can effectively prevent blackouts from propagating. The majority of the current cascading failure prediction models assume that the model only needs to be trained once, either when it is designed or when the system undergoes topology changes. However, this limits the efficacy and robustness of such models. Hence, this paper aims to design a framework for autonomous cascading failure prediction models that can self-improve while being connected to the grid in real-time. To successfully achieve this, importance sampling and case-based reasoning are used to optimize the amount of data and time needed to retrain the model in real-time. The results indicate that such an approach allows the models to naturally shift to a different model as the inputs change and significantly improves the accuracy of the model as more datapoints are obtained.","PeriodicalId":102311,"journal":{"name":"2021 IEEE Electrical Power and Energy Conference (EPEC)","volume":"182 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122090042","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 Proof of Concept for the Application of Second-Life Electric Vehicle Batteries as A Stationary Energy Storage System 二次生命电动汽车电池作为固定式储能系统的概念验证
2021 IEEE Electrical Power and Energy Conference (EPEC) Pub Date : 2021-10-22 DOI: 10.1109/EPEC52095.2021.9621442
A. Fazeli, Martin Stadie, M. Kerner, Andre Burger, H. Nagaoka, Markus Kramis, J. Ortloff, Florian Jomrich
{"title":"A Proof of Concept for the Application of Second-Life Electric Vehicle Batteries as A Stationary Energy Storage System","authors":"A. Fazeli, Martin Stadie, M. Kerner, Andre Burger, H. Nagaoka, Markus Kramis, J. Ortloff, Florian Jomrich","doi":"10.1109/EPEC52095.2021.9621442","DOIUrl":"https://doi.org/10.1109/EPEC52095.2021.9621442","url":null,"abstract":"The electrification of transport is currently underway, as the share of Electric Vehicles in the transportation sector continues to increase globally. This has resulted in a significant importance for various aspects of electric vehicle batteries during their full life cycle, not only for when batteries are inside vehicles, but also their application in second life as well as recycling and retrieval of original raw battery materials at the end of their life. One possible application of Electric Vehicle batteries in second life is for provision of Behind the Meter energy services for the end use customers. In this paper we showcase steps involved for creating a 40kW/68kWh Battery Energy Storage System, comprised of second life Electric Vehicle batteries. The operation of this energy storage system to provide Behind the Meter services for a commercial office building is also demonstrated.","PeriodicalId":102311,"journal":{"name":"2021 IEEE Electrical Power and Energy Conference (EPEC)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114213721","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
Performance Evaluation and Enhancement of an Electric Vehicle DC Fast Charging Station in a Weak Distribution Feeder 弱配电馈线下电动汽车直流快速充电站性能评价与改进
2021 IEEE Electrical Power and Energy Conference (EPEC) Pub Date : 2021-10-22 DOI: 10.1109/EPEC52095.2021.9621657
Zhi Jin Zhang, R. Iravani
{"title":"Performance Evaluation and Enhancement of an Electric Vehicle DC Fast Charging Station in a Weak Distribution Feeder","authors":"Zhi Jin Zhang, R. Iravani","doi":"10.1109/EPEC52095.2021.9621657","DOIUrl":"https://doi.org/10.1109/EPEC52095.2021.9621657","url":null,"abstract":"This work investigates and evaluates the performance and impact of a dc fast charging station (DCFCS) in a rural distribution feeder under various grid conditions. The station includes three dc fast chargers, each of which is rated at 360 kW and 900 V. The studies are conducted in time-domain using the off-line PLECS software platform. The studies show that the point of common coupling (PCC) voltage drop limits the lowest short-circuit ratio (SCR) that the DCFCS can satisfactorily operate with. An enhancement method, utilizing both a load curtailment strategy and a battery energy storage system, is consequently proposed to maintain the PCC voltage above its lower limit under low SCR conditions, thereby extending the charging station’s range of operation. RTDS-based real-time simulation results i) verify that the enhanced DCFCS is able to operate under the extended grid condition and ii) demonstrate the hardware implementation feasibility of the proposed methodology.","PeriodicalId":102311,"journal":{"name":"2021 IEEE Electrical Power and Energy Conference (EPEC)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128065953","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
Triangular-Shaped and Simultaneous Adjustment of Inertia and Damping in VSG-based Distributed Energy Resources for Improved Frequency Response 基于vsg的分布式能源中惯量和阻尼的三角形同步调节以改善频率响应
2021 IEEE Electrical Power and Energy Conference (EPEC) Pub Date : 2021-10-22 DOI: 10.1109/EPEC52095.2021.9621492
Erfan Mostajeran, Arash Safavizadeh, S. Ebrahimi, J. Jatskevich
{"title":"Triangular-Shaped and Simultaneous Adjustment of Inertia and Damping in VSG-based Distributed Energy Resources for Improved Frequency Response","authors":"Erfan Mostajeran, Arash Safavizadeh, S. Ebrahimi, J. Jatskevich","doi":"10.1109/EPEC52095.2021.9621492","DOIUrl":"https://doi.org/10.1109/EPEC52095.2021.9621492","url":null,"abstract":"The concept of virtual synchronous generators (VSGs) has been introduced as a viable control methodology for interfacing power electronic-based distributed energy resources (DERs) with the grid. This paper investigates a family of VSG control mechanisms with variable parameters; and proposes a new approach that simultaneously adjusts both the virtual inertia and damping in order to improve the overall frequency response of the DERs. The proposed method employs simplified triangular-shaped trajectories for changing the inertia and damping coefficients. Specifically, the proposed controller simultaneously increases both the virtual inertia and damping parameters based on the measured load disturbance in the power system, and decreases them linearly with an adjustable slope, which offers a simple implementation. The effectiveness of the proposed method is verified using computer simulations of a small-scale power system including a DER and a load. It is shown that the proposed control method improves the dynamic frequency response compared to the existing state-of-the-art VSG control techniques.","PeriodicalId":102311,"journal":{"name":"2021 IEEE Electrical Power and Energy Conference (EPEC)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125975506","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 Novel Control Method to Improve the Performance of Single-Phase Cascaded H-Bridge Multilevel Converter Under Variable DC Voltages 一种提高变直流电压下单相级联h桥多电平变换器性能的新型控制方法
2021 IEEE Electrical Power and Energy Conference (EPEC) Pub Date : 2021-10-22 DOI: 10.1109/EPEC52095.2021.9621437
Omid Zolfagharian, A. Siadatan
{"title":"A Novel Control Method to Improve the Performance of Single-Phase Cascaded H-Bridge Multilevel Converter Under Variable DC Voltages","authors":"Omid Zolfagharian, A. Siadatan","doi":"10.1109/EPEC52095.2021.9621437","DOIUrl":"https://doi.org/10.1109/EPEC52095.2021.9621437","url":null,"abstract":"Improvement of the performance of cascaded H-Bridge multilevel converters is considered as an important factor in the conditions of input DC voltages change. In this paper, using a novel control algorithm, the improvement of the performance of a seven-level converter under variable DC voltages has been examined. Since changing the input DC voltages changes the output phase voltage, the proposed controller has been used to control the modulation index to compensate for the effect of the phase voltage reduction. One of the challenges of presenting the control algorithm is the nonlinear variation of modulation index per input DC voltages change, which has been improved by presenting a suitable method by which phase voltage control is done instantly and online. In this paper, the phase voltage range has also been controlled without measuring DC voltages and only with the phase voltage measurement. This causes the lowest sensor to be employed to control the output voltage. The switching method used in this paper is the phase disposition pulse width modulation (PD-PWM). Finally, the simulation results in MATLAB software confirm the proposed algorithm.","PeriodicalId":102311,"journal":{"name":"2021 IEEE Electrical Power and Energy Conference (EPEC)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133540616","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
An Overview of Cold Load Pickup Modeling for Distribution System Planning 配电系统规划中的冷负荷拾取建模综述
2021 IEEE Electrical Power and Energy Conference (EPEC) Pub Date : 2021-10-22 DOI: 10.1109/EPEC52095.2021.9621526
Mario González, K. Wheeler, S. Faried
{"title":"An Overview of Cold Load Pickup Modeling for Distribution System Planning","authors":"Mario González, K. Wheeler, S. Faried","doi":"10.1109/EPEC52095.2021.9621526","DOIUrl":"https://doi.org/10.1109/EPEC52095.2021.9621526","url":null,"abstract":"The study of the load diversity in networks with high penetration of thermostat-controlled loads is an important process in the distribution system planning stage as it provides useful information for the proper selection and sizing of power equipment, and calibration of protective devices. However, as the load diversity in a power system could be negatively impacted during extended outages, the estimation of the cold load pickup current magnitudes during restoration must be taken into account, as these may cause significant overloading and interfere with the intended operation of overcurrent devices. In this paper, several cold load pickup (CLPU) models are recompiled from the literature and an analytical comparison between them is presented with the purpose of presenting the differences in the estimation of the CLPU levels during service restoration.","PeriodicalId":102311,"journal":{"name":"2021 IEEE Electrical Power and Energy Conference (EPEC)","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115441315","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
Direct Net Load Forecasting Using Adaptive Neuro Fuzzy Inference System 基于自适应神经模糊推理系统的直接净负荷预测
2021 IEEE Electrical Power and Energy Conference (EPEC) Pub Date : 2021-10-22 DOI: 10.1109/EPEC52095.2021.9621457
Gamal Aburiyana, H. Aly, T. Little
{"title":"Direct Net Load Forecasting Using Adaptive Neuro Fuzzy Inference System","authors":"Gamal Aburiyana, H. Aly, T. Little","doi":"10.1109/EPEC52095.2021.9621457","DOIUrl":"https://doi.org/10.1109/EPEC52095.2021.9621457","url":null,"abstract":"Electricity generated from renewable resources such as wind, solar, geothermal, biomass, ocean waves and tidal is considered sustainable and emissions free. Among these kinds of clean energy resources, wind and solar energy are contributing the most to supplying the load demand all over the world. The stochastic nature of wind and solar power resources injects additional variability and uncertainty to the power system and makes it difficult for the system operator to maintain a continuous balance between the generated and the consumed power especially during high wind and solar power penetration levels. To secure a reliable and economic hybrid power system operation, it is important to provide the system operator with accurate net load forecasts. This research aims to reach optimal net load forecast by forecasting the net load directly using Adaptive Neuro Fuzzy Inference System (ANFIS) depending on the historical net load data.","PeriodicalId":102311,"journal":{"name":"2021 IEEE Electrical Power and Energy Conference (EPEC)","volume":"294 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116312700","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
Dual-Input H-bridge Based 3-Phase Cascaded Multilevel Converter for Utility Scale Battery Applications 基于双输入h桥的三相级联多电平变换器，用于公用事业规模电池应用
2021 IEEE Electrical Power and Energy Conference (EPEC) Pub Date : 2021-10-22 DOI: 10.1109/EPEC52095.2021.9621693
A. Sheir, V. Sood
{"title":"Dual-Input H-bridge Based 3-Phase Cascaded Multilevel Converter for Utility Scale Battery Applications","authors":"A. Sheir, V. Sood","doi":"10.1109/EPEC52095.2021.9621693","DOIUrl":"https://doi.org/10.1109/EPEC52095.2021.9621693","url":null,"abstract":"In this paper, a modified cascaded H-bridge CHB multilevel converter is introduced for utility-scale battery applications. The conventional H-bridge module, used as a building block in CHB, is replaced with a dual-input H-bridge module. In this, a boost converter is connected to a separate battery-set and integrated to each leg of the H-bridge. Such a configuration not only eliminates one power switch from each boost converter, but it also maintains the converter’s flexibility i.e. each boost converter can operate at its own duty cycle. The relationship between the boost duty cycle and modulation index is derived. The proposed topology is able to maintain uniform charging/discharging operation among all connected battery-sets while supplying/absorbing the desired reference power. The validity of the proposed converter is tested using a Matlab/Simulink model in a grid connected mode under different operating conditions.","PeriodicalId":102311,"journal":{"name":"2021 IEEE Electrical Power and Energy Conference (EPEC)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128510993","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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