2020 5th IEEE Workshop on the Electronic Grid (eGRID)最新文献_第2页

Design Aspects of Medium and Low Voltage DC Distribution Grids - An Overview 中低压直流配电网设计综述

2020 5th IEEE Workshop on the Electronic Grid (eGRID) Pub Date : 2020-11-02 DOI: 10.1109/eGRID48559.2020.9330652

J. Saat, Raphael Bleilevens, D. Mildt, Jens Priebe, Niklas Wehbring, A. Moser

引用次数: 5

Topology Morphing Control Strategies for Full-bridge LLC Converter 全桥LLC变换器的拓扑变形控制策略

2020 5th IEEE Workshop on the Electronic Grid (eGRID) Pub Date : 2020-11-02 DOI: 10.1109/eGRID48559.2020.9330664

Yuai Wei, A. Mantooth

引用次数: 3

Discrete Current Controller Design using Ragazzini Method for Active Damper 基于Ragazzini方法的有源阻尼器离散电流控制器设计

2020 5th IEEE Workshop on the Electronic Grid (eGRID) Pub Date : 2020-11-02 DOI: 10.1109/eGRID48559.2020.9330366

R. G. Iturra, P. Thiemann

{"title":"Discrete Current Controller Design using Ragazzini Method for Active Damper","authors":"R. G. Iturra, P. Thiemann","doi":"10.1109/eGRID48559.2020.9330366","DOIUrl":"https://doi.org/10.1109/eGRID48559.2020.9330366","url":null,"abstract":"The capability of an active damper to suppress resonances in a wide range of harmonics frequencies and its stability depends heavily on the tracking performance of its inner current controller. Even though nowadays most of the current controllers are implemented digitally in a microcontroller or DSP, the conventional current controller design is still done in the continuous frequency domain. Later on, the current controller discretization is carried out using transformation techniques (e.g. Tustin transformation, forward rule, etc). The disadvantage of such methodology it that the current controller bandwidth is restricted to be ten times smaller than the PWM sampling frequency. This fact affects negatively the performance of the active damper and its stability especially at small values of the emulated resistance. In this paper, we present a current controller design that is carried out directly in the discrete domain using the Ragazzini method. The result is a current closed loop with a bandwidth three times higher than the bandwidth achieved by current controllers designed with traditional methods. The achieved higher bandwidth boosts the effectiveness of the active damper and pushes its stability limit forward.","PeriodicalId":296524,"journal":{"name":"2020 5th IEEE Workshop on the Electronic Grid (eGRID)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126631734","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

Benefit of a HVDC Back-to-Back Station in a Real Distribution Grid 高压直流背靠背站在实际配电网中的效益

2020 5th IEEE Workshop on the Electronic Grid (eGRID) Pub Date : 2020-11-02 DOI: 10.1109/eGRID48559.2020.9330644

Niklas Wehbring, Raphael Bleilevens, J. Saat, M. Rose, A. Moser

引用次数: 1

Large-Scale Adoption of Self-Synchronized Universal Droop Controller-Based Inverters to Enable Ancillary Services for Different Modes of Distribution System Operations 大规模采用基于自同步通用下垂控制器的逆变器，为不同的配电系统运行模式提供辅助服务

2020 5th IEEE Workshop on the Electronic Grid (eGRID) Pub Date : 2020-11-02 DOI: 10.1109/eGRID48559.2020.9330668

Laura Arce, M. Chamana, I. Osman, B. Ren, Qing-Chang Zhong, S. Bayne

引用次数: 0

V2G Potential Estimation and Optimal Discharge Scheduling for MMC-based Charging Stations 基于mmc的充电站V2G电位估计与最优放电调度

2020 5th IEEE Workshop on the Electronic Grid (eGRID) Pub Date : 2020-11-02 DOI: 10.1109/eGRID48559.2020.9330677

E. Gümrükcü, Harshvardhan Samsukha, F. Ponci, A. Monti, G. Guidi, S. D'arco, J. Suul

{"title":"V2G Potential Estimation and Optimal Discharge Scheduling for MMC-based Charging Stations","authors":"E. Gümrükcü, Harshvardhan Samsukha, F. Ponci, A. Monti, G. Guidi, S. D'arco, J. Suul","doi":"10.1109/eGRID48559.2020.9330677","DOIUrl":"https://doi.org/10.1109/eGRID48559.2020.9330677","url":null,"abstract":"This paper investigates the vehicle-to-grid (V2G) potential of the large scale electric vehicle (EV) charging infrastructures where the grid-side interface is based on a Modular Multilevel Converter (MMC). In this topology, each phase of the grid-side interface consists of two arms, each of which accommodates a number of bidirectional EV chargers. Heterogeneous connection and disconnection of EVs with different State-of-Charge (SOC) may lead to unbalanced power flow among the MMC arms. Although the studied MMC topology can tolerate limited unbalances in the loading, extreme unbalances must be prevented to limit the internal current amplitudes and avoid increased losses. Due to such unbalance limitations, the feasible V2G potential of the overall system can be smaller than the summation of individual discharge potentials of the participating EV batteries. The algorithm presented in this paper estimates the feasible V2G potential of the MMC-based system over a time window by the help of a mathematical optimization model. This model maximizes the aggregated discharge potential of the overall system by scheduling the discharge profiles of individual EV batteries while respecting the unbalance constraints of the MMC topology. Furthermore, this model is able to schedule the discharging activities in such a way that the priorities of the EV users in this regard are considered while the entire feasible V2G potential of the overall system is utilized.","PeriodicalId":296524,"journal":{"name":"2020 5th IEEE Workshop on the Electronic Grid (eGRID)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122269909","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

Design of a Bipolar DC Grid Fault Emulator 双极直流电网故障仿真器的设计

2020 5th IEEE Workshop on the Electronic Grid (eGRID) Pub Date : 2020-11-02 DOI: 10.1109/eGRID48559.2020.9330362

G. Govaerts, L. Hallemans, J. Driesen, W. Martínez

引用次数: 2

Implementation of an automated test bench for monitoring and controlling systems of decentralized energy systems through Controller Hardware-In-the-Loop and Power Hardware-In-the-Loop methodology 通过控制器硬件在环和电源硬件在环方法实现用于监测和控制分散能源系统系统的自动化试验台

2020 5th IEEE Workshop on the Electronic Grid (eGRID) Pub Date : 2020-11-02 DOI: 10.1109/eGRID48559.2020.9330636

J. Morris, F. Ebe, Jennifer Pichl, Shuo Chen, G. Heilscher, Jan-Gerrit Leeser

{"title":"Implementation of an automated test bench for monitoring and controlling systems of decentralized energy systems through Controller Hardware-In-the-Loop and Power Hardware-In-the-Loop methodology","authors":"J. Morris, F. Ebe, Jennifer Pichl, Shuo Chen, G. Heilscher, Jan-Gerrit Leeser","doi":"10.1109/eGRID48559.2020.9330636","DOIUrl":"https://doi.org/10.1109/eGRID48559.2020.9330636","url":null,"abstract":"With the ongoing digitalization in the energy transition and the rollout of intelligent measuring systems (iMSys) in Germany, new opportunities arise in communicating with distributed energy systems. For monitoring and telecontrolling the increasing number of distributed energy resources (DER) as well as flexible loads, the use of controlling systems in the distribution grid is gaining more importance. Therefore, different applications have been developed and basic functionalities tested in a laboratory and field environment. As a part of this progress the presented contribution focuses on the implementation of a test bench for monitoring and controlling systems named Controllable Local System (CLS) gateways. Based on the Controller Hardware-In-the-Loop (CHIL) respectively Power Hardware-In-the-Loop (PHIL) method, the test bench validates the bidirectional communication functionalities of a CLS Gateway, which is coupled with a photovoltaic inverter. The implemented test bench features a test automation which enables the conduction of multiple test scenarios concerning functionality, stability as well as resilience of a test object. Mainly this aims at investigating the suitability of such CLS gateways for field operation. Aside of the implemented test bench first test results are presented in this work. The investigated test CLS gateway has revealed a reliable transmission of measurement and control data during long-term examination. Also, frequent power interruptions can lead to failure of functionalities.","PeriodicalId":296524,"journal":{"name":"2020 5th IEEE Workshop on the Electronic Grid (eGRID)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131669730","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

Simplified Short Circuit Current Calculation for DC Distribution Grids based on a Superposition Approach using Approximated Current Courses 基于近似电流过程的叠加法简化直流配电网短路电流计算

2020 5th IEEE Workshop on the Electronic Grid (eGRID) Pub Date : 2020-11-02 DOI: 10.1109/eGRID48559.2020.9330643

Raphael Bleilevens, A. Moser

引用次数: 3

A Simple Resonant Frequency Tracking Technique for DC Transformer Operation 一种用于直流变压器运行的简单谐振频率跟踪技术

2020 5th IEEE Workshop on the Electronic Grid (eGRID) Pub Date : 2020-11-02 DOI: 10.1109/eGRID48559.2020.9330634

Yuqi Wei, A. Mantooth

引用次数: 2