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2021 IEEE Fourth International Conference on DC Microgrids (ICDCM)最新文献

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A Load Converter Impedance Adjustment Method for Stability Improvement of DC Microgrids 一种提高直流微电网稳定性的负载变流器阻抗调整方法
2021 IEEE Fourth International Conference on DC Microgrids (ICDCM) Pub Date : 2021-07-18 DOI: 10.1109/ICDCM50975.2021.9504631
Guo Liangliang, S. Kai, Xu Lie, Li Yongdong
{"title":"A Load Converter Impedance Adjustment Method for Stability Improvement of DC Microgrids","authors":"Guo Liangliang, S. Kai, Xu Lie, Li Yongdong","doi":"10.1109/ICDCM50975.2021.9504631","DOIUrl":"https://doi.org/10.1109/ICDCM50975.2021.9504631","url":null,"abstract":"A method that can adjust the input impedance of loads in DC microgrids is proposed. This method can be applied to loads such as close-loop-controlled Buck converters followed by DC load, close-loop-controlled inverters, inverters with motor loads, etc. This method can improve the stability of DC microgrids by improving the amplitude-frequency characteristics of loads. Close-loop-controlled inverter is taken as an example to explain how this method works, and simulation model is built in SIMULINK to verify the effectiveness of the proposed method.","PeriodicalId":147236,"journal":{"name":"2021 IEEE Fourth International Conference on DC Microgrids (ICDCM)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115364052","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 Power Flow Scheduling Strategy for Multi-Microgrids with Multi-Time Scale Method 基于多时间尺度法的多微电网潮流优化调度策略
2021 IEEE Fourth International Conference on DC Microgrids (ICDCM) Pub Date : 2021-07-18 DOI: 10.1109/ICDCM50975.2021.9504632
Yang Zhou, Panbao Wang, Xiaochen Zhang, Wei Wang, Dianguo Xu
{"title":"Optimal Power Flow Scheduling Strategy for Multi-Microgrids with Multi-Time Scale Method","authors":"Yang Zhou, Panbao Wang, Xiaochen Zhang, Wei Wang, Dianguo Xu","doi":"10.1109/ICDCM50975.2021.9504632","DOIUrl":"https://doi.org/10.1109/ICDCM50975.2021.9504632","url":null,"abstract":"This paper proposes an optimal power flow scheduling strategy for the energy management of multi-MG systems. At the multi-MG level, the global central controller (GCC) is responsible for managing the MGs. The GCC calculates the amount of power exchanged within the MGs by using a novel optimal energy allocation policy. Based on the energy supply and demand mismatch, MGs are classified as providers and consumers. The GCC collects information, then distributes energy among the consumers and divides benefits to the providers. Each consumer determines the price of the purchased energy from other MGs based on a priority parameter, in which the local load demand and renewable energy penetration rate are considered as important factors. At the MG level, with the goal of minimizing the operating cost of the MG, the energy is controlled from two time scales, namely day-ahead and intraday, to optimize the output power of generators and energy storage devices. Finally, a simulation of a multi-MG system with three MGs demonstrate the effectiveness of the proposed optimal method.","PeriodicalId":147236,"journal":{"name":"2021 IEEE Fourth International Conference on DC Microgrids (ICDCM)","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115690429","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 Second Order Boost Converter with High-Gain and Low Switch Tube Voltage Stress 一种新型高增益、低开关管电压应力的二阶升压变换器
2021 IEEE Fourth International Conference on DC Microgrids (ICDCM) Pub Date : 2021-07-18 DOI: 10.1109/ICDCM50975.2021.9504671
Yang Zhou, Dong-dong Chen, Panbao Wang, Wei Wang, Dianguo Xu
{"title":"A Novel Second Order Boost Converter with High-Gain and Low Switch Tube Voltage Stress","authors":"Yang Zhou, Dong-dong Chen, Panbao Wang, Wei Wang, Dianguo Xu","doi":"10.1109/ICDCM50975.2021.9504671","DOIUrl":"https://doi.org/10.1109/ICDCM50975.2021.9504671","url":null,"abstract":"Aiming at the problem that the output voltage of the photovoltaic (PV) array is much lower than the voltage required by the grid-connected inverter in the grid-connected power generation system, a new type of second order boost converter with high-gain and low switching tube voltage stress is proposed. The proposed topology is based on the basic Boost circuit, including three switching capacitors and a boost inductor to increase the boost ratio. At the same time, the converter clamps the switching tube to suppress the voltage spike and greatly reduce the voltage stress of the switching tube. The converter circuit topology is simple, which reduces the cost and volume of the converter. The working principle of the converter is analyzed, and the boosting effect of the converter is verified by corresponding simulation and experiments, which proves the correctness of the theoretical analysis.","PeriodicalId":147236,"journal":{"name":"2021 IEEE Fourth International Conference on DC Microgrids (ICDCM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121239973","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 new circuit and operation for non-arc metal contact dc switch 一种新型无弧金属触点直流开关电路及操作方法
2021 IEEE Fourth International Conference on DC Microgrids (ICDCM) Pub Date : 2021-07-18 DOI: 10.1109/ICDCM50975.2021.9504620
S. Yamaguchi, K. Yoshimura, Kento Kato
{"title":"A new circuit and operation for non-arc metal contact dc switch","authors":"S. Yamaguchi, K. Yoshimura, Kento Kato","doi":"10.1109/ICDCM50975.2021.9504620","DOIUrl":"https://doi.org/10.1109/ICDCM50975.2021.9504620","url":null,"abstract":"DC power circuit system is valuable for the smart grid and the renewable energy system, but one problem is the current switching. The non-arc generation between the metal contacts is one of the ideal switches for the direct current interruption. One (SY) of the authors developed the non-arc dc circuit breaker early 1990’s and proposed and reported a different type of the non-arc switch in 2011 in Japan. It is called the hybrid switch now, which is composed of the self-extinguishing semiconductor device and the metal contact switch. We make the test switch using the commercial power relay and the IGBT, and we perform the lifetime test up to 20,000 times. We observe the surfaces of the metal contacts, and find no significant damages on the surface. It is helpful for internet data centers and other dc applications.","PeriodicalId":147236,"journal":{"name":"2021 IEEE Fourth International Conference on DC Microgrids (ICDCM)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121988429","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
Modeling of High-Speed Fuses for Selectivity Study in DC Shipboard Power System 用于船舶直流电力系统选择性研究的高速熔断器建模
2021 IEEE Fourth International Conference on DC Microgrids (ICDCM) Pub Date : 2021-07-18 DOI: 10.1109/ICDCM50975.2021.9504616
J. J. Deroualle
{"title":"Modeling of High-Speed Fuses for Selectivity Study in DC Shipboard Power System","authors":"J. J. Deroualle","doi":"10.1109/ICDCM50975.2021.9504616","DOIUrl":"https://doi.org/10.1109/ICDCM50975.2021.9504616","url":null,"abstract":"In this article, a method for calculating the circuit parameters (without using experimental validation results) for an existing fuse model is discussed. The main feature of such characterization procedure is the timeless effort that supports the project designer in incorporating into the protection study the current-limiting phenomena. A convenient study case is carried out focusing the selectivity analysis in a research boat with a dc microgrid system. The proposed model is included in the network time-domain modeling, and the simulation outcomes are compared with the fuse coordination analysis through time-current curves. The entire investigation is performed observing the compliance with ship classification society requirements for dc power distribution systems.","PeriodicalId":147236,"journal":{"name":"2021 IEEE Fourth International Conference on DC Microgrids (ICDCM)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122233342","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
Hierarchical Network Management of Industrial DC-Microgrids 工业直流微电网的分层网络管理
2021 IEEE Fourth International Conference on DC Microgrids (ICDCM) Pub Date : 2021-07-18 DOI: 10.1109/ICDCM50975.2021.9504619
Isabella Bianchini, Timm Kuhlmann, Bernd Wunder, A. Unru, A. Sauer
{"title":"Hierarchical Network Management of Industrial DC-Microgrids","authors":"Isabella Bianchini, Timm Kuhlmann, Bernd Wunder, A. Unru, A. Sauer","doi":"10.1109/ICDCM50975.2021.9504619","DOIUrl":"https://doi.org/10.1109/ICDCM50975.2021.9504619","url":null,"abstract":"The energy transition is a necessary component of the sustainable transformation of society. To achieve the Paris Climate Agreement´s goals, on one hand new, more energy-efficient approaches must be applied in industrial production. On the other hand, production must profit from these approaches inexpensively and reliably. Concerning the electrical energy supply of factories, direct current (DC) microgrids represent an efficient compromise for these often conflicting requirements. To effectively integrate the DC-microgrids in industrial environment, a standard framework for their management is identified. The aim of this paper is to define a hierarchical structure of the network management of industrial DC-microgrids, from the single device control to the large production facility scale, and discuss the functions of each management level. These functions are further prioritized and described in sequence diagrams. In the end, examples of practical applications of this structure are introduced.","PeriodicalId":147236,"journal":{"name":"2021 IEEE Fourth International Conference on DC Microgrids (ICDCM)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124571207","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
DC Microgrid Experimental System at KIT and its Autonomous Distributed DC Voltage Control Method KIT直流微电网实验系统及其自主分布式直流电压控制方法
2021 IEEE Fourth International Conference on DC Microgrids (ICDCM) Pub Date : 2021-07-18 DOI: 10.1109/ICDCM50975.2021.9504622
Yoshito Nishita, Y. Izui, M. Honda, M. Mizuochi, Daisuke Natsuume, Hirokazu Tabata
{"title":"DC Microgrid Experimental System at KIT and its Autonomous Distributed DC Voltage Control Method","authors":"Yoshito Nishita, Y. Izui, M. Honda, M. Mizuochi, Daisuke Natsuume, Hirokazu Tabata","doi":"10.1109/ICDCM50975.2021.9504622","DOIUrl":"https://doi.org/10.1109/ICDCM50975.2021.9504622","url":null,"abstract":"We have been conducting the electric heating-linked DC microgrid demonstration experiment aiming at local production for local consumption of renewable energy resources since 2018. The generated power is supplied to the cottage where the staff live by the DC 360V feeder. In this paper, we propose new autonomous distributed method of charge and discharge control of storage batteries that balance supply and demand of DC power. This method is formulated as an optimization problem with the objective function of maximizing the operation duration when the DC microgrid operates in independent operation. Firstly, the outline of the demonstration experiment will be explained. Next, the outline of the DC voltage control method and the simulation evaluation results using the real data from the site will be explained.","PeriodicalId":147236,"journal":{"name":"2021 IEEE Fourth International Conference on DC Microgrids (ICDCM)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130513120","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
Fidelity Assessment of Real-Time Simulation of DC-DC Converters DC-DC变换器实时仿真的保真度评估
2021 IEEE Fourth International Conference on DC Microgrids (ICDCM) Pub Date : 2021-07-18 DOI: 10.1109/ICDCM50975.2021.9504615
M. Stevic, G. Roy, Ting Wang, Zhiqing Yang, R. Venugopal, R. D. Doncker, A. Monti
{"title":"Fidelity Assessment of Real-Time Simulation of DC-DC Converters","authors":"M. Stevic, G. Roy, Ting Wang, Zhiqing Yang, R. Venugopal, R. D. Doncker, A. Monti","doi":"10.1109/ICDCM50975.2021.9504615","DOIUrl":"https://doi.org/10.1109/ICDCM50975.2021.9504615","url":null,"abstract":"Real-time simulation of multi-converter systems at sub-microsecond resolution is of interest for validation and testing of protection schemes in Medium-Voltage direct current (MVdc) grids. To provide valid simulation and testing results, it is of significant importance to ensure a high degree of simulation fidelity. MVdc grids consisting of multiple three-phase Dual Active Bridge (DAB3) converters are considered in this work. This paper analyzes the trade-off between the number of DAB3 converters included in the MVdc grid and associated computational demand. Simulation fidelity is quantified for different simulation time-steps and recommendations for accurate real-time simulation of MVdc grids with DAB3 converters are provided.","PeriodicalId":147236,"journal":{"name":"2021 IEEE Fourth International Conference on DC Microgrids (ICDCM)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124335342","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
Multi-port Energy Router for DC Grid Clusters 用于直流电网集群的多端口能量路由器
2021 IEEE Fourth International Conference on DC Microgrids (ICDCM) Pub Date : 2021-07-18 DOI: 10.1109/ICDCM50975.2021.9504679
Linfeng Sun, Wei Jiang, S. Hashimoto, Zhengyu Lin
{"title":"Multi-port Energy Router for DC Grid Clusters","authors":"Linfeng Sun, Wei Jiang, S. Hashimoto, Zhengyu Lin","doi":"10.1109/ICDCM50975.2021.9504679","DOIUrl":"https://doi.org/10.1109/ICDCM50975.2021.9504679","url":null,"abstract":"DC micro-grid comes an increasingly popular solution for local energy integration and dispatch. Individual DC micro-grid can operate in both island and grid-tie mode. The past research mainly focused on the DC-AC grid-tie power management while DC-DC tie mode might dominate future smart power distribution networks. This paper proposed a multi-port energy router concept to multiplex DC power from multiple DC communities whose bus voltage is operated at very close levels. The proposed partial power energy router works as a Kirchhoff’s current law (KCL) “super node”. It includes a partial power topology which can direct the DC current flow between any two buses or to the local energy storage by only taking the bus voltage differences. To fit the modulation and control into industrial standard framework, also considering the flexibility of controlling the energy storage current, multidimension space vector modulation and modified instantaneous power theory are proposed to regulate the DC power flow. The power transfer efficiency of standard half-bridges partial power topology is verified experimentally. Multiple operation scenarios are investigated to prove the feasibility of the energy router through simulation and experiments.","PeriodicalId":147236,"journal":{"name":"2021 IEEE Fourth International Conference on DC Microgrids (ICDCM)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124044918","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 Single-phase Ultra-wide-efficient Load Range AC/DC Power Conversion Solution for DC Infrastructure Power Supply Applications 一种用于直流基础电源应用的单相超宽高效负载范围AC/DC功率转换解决方案
2021 IEEE Fourth International Conference on DC Microgrids (ICDCM) Pub Date : 2021-07-18 DOI: 10.1109/ICDCM50975.2021.9504639
V. S. Cheung, Qingchun Li, R. T. Li
{"title":"A Single-phase Ultra-wide-efficient Load Range AC/DC Power Conversion Solution for DC Infrastructure Power Supply Applications","authors":"V. S. Cheung, Qingchun Li, R. T. Li","doi":"10.1109/ICDCM50975.2021.9504639","DOIUrl":"https://doi.org/10.1109/ICDCM50975.2021.9504639","url":null,"abstract":"A single-phase AC/DC power conversion solution for DC infrastructure, such as DC home and office, with ultra-width-efficient load range is proposed. 98.0% efficiency from 10% load and is proposed. It is a modular structure with five parallel connected modules in interleaving operation. A load-base Active Module Control (AMC) determines the suitable number of active module(s) to achieve higher efficiency across the entire load range. A 5kW, 220V/50Hz AC input, 375V DC output experimental prototype has been built and evaluated. Operating principle, steady state and dynamic response of the proposed solution will be explained.","PeriodicalId":147236,"journal":{"name":"2021 IEEE Fourth International Conference on DC Microgrids (ICDCM)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127893179","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
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