2022 IEEE 13th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)最新文献_第2页

State-Space Modeling of Dual Active Bridge Converters During Fault Ride-Through Operation 双有源桥式变换器故障穿越过程的状态空间建模

2022 IEEE 13th International Symposium on Power Electronics for Distributed Generation Systems (PEDG) Pub Date : 2022-06-26 DOI: 10.1109/PEDG54999.2022.9923231

D. Ye, Z. Hao, Ting Wang, Jingxin Hu

引用次数: 1

Improved Accuracy of the Power Hardware-in-the-Loop Modeling using Multirate Discrete Domain 利用多速率离散域提高电源在环硬件建模精度

2022 IEEE 13th International Symposium on Power Electronics for Distributed Generation Systems (PEDG) Pub Date : 2022-06-26 DOI: 10.1109/PEDG54999.2022.9923128

Fargah Ashrafidehkordi, Giovanni de Carne

{"title":"Improved Accuracy of the Power Hardware-in-the-Loop Modeling using Multirate Discrete Domain","authors":"Fargah Ashrafidehkordi, Giovanni de Carne","doi":"10.1109/PEDG54999.2022.9923128","DOIUrl":"https://doi.org/10.1109/PEDG54999.2022.9923128","url":null,"abstract":"Power Hardware-in-the-Loop (PHIL) enables realistic hardware testing interfacing with a simulated environment. The PHIL nature calls for power interfaces, such as analog-to-digital converters, the power amplifier, and sensors, containing latency and noise. These elements are non-ideal, leading to inaccuracies and even instability. Accordingly, accurate modeling of a PHIL setup has become a challenging research topic. This paper presents accurate modeling of a PHIL setup approaching the actual hybrid analog/digital PHIL characteristics to ensure high accuracy in a wide frequency spectrum range. The proposed technique applies multirate discrete modeling, considering digital/analog sections as if in an actual setup. The accuracy is defined and evaluated over the frequency range of interests. The prominent voltage-type ideal transformer method (V-ITM) is employed as the interface algorithm. The proposed multirate discrete modeling is compared with purely continuous and singular discrete modeling approaches, considering all interface delays and dynamics while operating different hardware, namely, RL and RLC load. Frequency responses reveal a significant accuracy improvement in the proposed method. The step response similarly confirms the better performance of the proposed model in replicating the transients. The modeling methods are simulated using Simulink/MATLAB to confirm the validity of the proposed model.","PeriodicalId":276307,"journal":{"name":"2022 IEEE 13th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)","volume":"63 sp1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129233452","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

Harmonic Resonance Mitigation and Impedance Stability Improvement of Converter-Based Resources in Active Distribution Grids 主动配电网中基于变流器资源的谐波共振抑制与阻抗稳定性改善

2022 IEEE 13th International Symposium on Power Electronics for Distributed Generation Systems (PEDG) Pub Date : 2022-06-26 DOI: 10.1109/PEDG54999.2022.9923073

Ramy E. Ali, T. O’Donnell

{"title":"Harmonic Resonance Mitigation and Impedance Stability Improvement of Converter-Based Resources in Active Distribution Grids","authors":"Ramy E. Ali, T. O’Donnell","doi":"10.1109/PEDG54999.2022.9923073","DOIUrl":"https://doi.org/10.1109/PEDG54999.2022.9923073","url":null,"abstract":"This paper discusses the stability issues of the converter-based resources due to the interaction with an active grid that comprises converter-based loads. The dynamics of the converter based loads modify the grid impedance characteristics from passive to active. The impedance-based stability criterion is employed to evaluate the stability of the converter-based resources that are integrated into an active grid. The results reveal that, unlike a passive grid, the impedance stability of converter-based resources cannot be guaranteed with an active grid. As a result, to maintain the overall system’s stability, preventive measures should be implemented in converter-based resources. To suppress the resonances, two distinct damping approaches, the filter-based approach and the state feedback-based approach, are used. However, the state feedback-based approach offers superior performance and a more straightforward design; the filter-based approach is more practical. Simulation results are provided for verifying the theoretical analysis.","PeriodicalId":276307,"journal":{"name":"2022 IEEE 13th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121433769","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

Inductor Encapsulation-Based Thermal Management Enabling Increased Power Density 基于电感封装的热管理可提高功率密度

2022 IEEE 13th International Symposium on Power Electronics for Distributed Generation Systems (PEDG) Pub Date : 2022-06-26 DOI: 10.1109/PEDG54999.2022.9923101

Shamar F. Christian, R. Fantino, Roderick Amir Gomez, Juan Carlos Balda

引用次数: 0

An analysis of combining dc circuit breaker and hybrid MMC with reduced number of FBSM for HVdc system protection 直流断路器与混合MMC相结合，减少FBSM数量用于直流系统保护的分析

2022 IEEE 13th International Symposium on Power Electronics for Distributed Generation Systems (PEDG) Pub Date : 2022-06-26 DOI: 10.1109/PEDG54999.2022.9923137

João Victor Matos Farias, L. Camurca, M. Langwasser, M. Liserre

引用次数: 0

Reinforcement Learning Based Modulation for Balancing Capacitor Voltage and Thermal Stress to Enhance Current Capability of MMCs 基于强化学习的调制方法平衡电容器电压和热应力以增强mmc的电流能力

2022 IEEE 13th International Symposium on Power Electronics for Distributed Generation Systems (PEDG) Pub Date : 2022-06-26 DOI: 10.1109/PEDG54999.2022.9923188

Jun-Hyung Jung, E. Hosseini, M. Liserre, Luis M. Fernández‐Ramírez

{"title":"Reinforcement Learning Based Modulation for Balancing Capacitor Voltage and Thermal Stress to Enhance Current Capability of MMCs","authors":"Jun-Hyung Jung, E. Hosseini, M. Liserre, Luis M. Fernández‐Ramírez","doi":"10.1109/PEDG54999.2022.9923188","DOIUrl":"https://doi.org/10.1109/PEDG54999.2022.9923188","url":null,"abstract":"Balancing DC capacitor voltage of many submodules (SMs) is one of the important issues in modular multilevel converter (MMC) systems. In addition, the balance of thermal stress between SMs should be considered to equalize the lifetime expectation of semiconductors and to enhance the current capability of MMC systems. However, it is complicated to balance all the various factors satisfactorily at the same time. Recent machine learning (ML) techniques can achieve optimal results through learning using numerous data acquired in complex environments. Therefore, this paper proposes a new modulation based on reinforcement learning (RL), which is a subclass of ML methods, to optimally balance the capacitor voltage and thermal stress of SMs. A deep Q-network (DQN) agent, which is one of the RL algorithms, is applied in accordance with a nearest-level modulation (NLM), and main features of the DQN agent are described in this paper. The effectiveness of the proposed modulation based on RL is verified by simulations results.","PeriodicalId":276307,"journal":{"name":"2022 IEEE 13th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128096582","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

Switching Instances and Permutations for State-Space Modeling of the Dual Active Half Bridge Converter 双有源半桥变换器状态空间建模的开关实例和排列

2022 IEEE 13th International Symposium on Power Electronics for Distributed Generation Systems (PEDG) Pub Date : 2022-06-26 DOI: 10.1109/PEDG54999.2022.9923213

Youssef A. Fahmy, M. Preindl

引用次数: 0

An Integrated Simulation/Laboratory System to Investigate Grid/Inverter Stability Issues 研究电网/逆变器稳定性问题的集成仿真/实验室系统

2022 IEEE 13th International Symposium on Power Electronics for Distributed Generation Systems (PEDG) Pub Date : 2022-06-26 DOI: 10.1109/PEDG54999.2022.9923259

H. Takahira, D. G. Holmes, B. Mcgrath, Lasantha Gunaruwan Meegahapola

引用次数: 0

Experimental Analysis of K-Best Sphere Decoding Algorithm for LPH-FCS-MPC LPH-FCS-MPC的K-Best球解码算法实验分析

2022 IEEE 13th International Symposium on Power Electronics for Distributed Generation Systems (PEDG) Pub Date : 2022-06-26 DOI: 10.1109/PEDG54999.2022.9923323

Eduardo Zafra, S. Vazquez, A. Marquez, L. Franquelo, J. I. Leon, Emilia Perez

引用次数: 1

Virtual Energy Storage Operation for Smart Photovoltaic Inverters 智能光伏逆变器的虚拟储能运行

2022 IEEE 13th International Symposium on Power Electronics for Distributed Generation Systems (PEDG) Pub Date : 2022-06-26 DOI: 10.1109/PEDG54999.2022.9923090

Yongheng Yang, Yi Xiao, Q. Peng, F. Blaabjerg, Yingzi Wu, Xiaotong Ji

{"title":"Virtual Energy Storage Operation for Smart Photovoltaic Inverters","authors":"Yongheng Yang, Yi Xiao, Q. Peng, F. Blaabjerg, Yingzi Wu, Xiaotong Ji","doi":"10.1109/PEDG54999.2022.9923090","DOIUrl":"https://doi.org/10.1109/PEDG54999.2022.9923090","url":null,"abstract":"Inverter-based resources (IBR) are increasingly adopted and becoming the dominant electricity generation sources in today’s power systems. This may require a \"bottom-up\" change of the operation and control of the employed power inverters, e.g., based on the emerging grid-forming technology and by integrating energy storage. Currently, grid-following and grid-forming inverters are simultaneously seen in power systems, while mostly as demonstration small-scale or medium-scale cases. As such, grid-following inverters should become much smarter and be able to provide various functions to support the power grid in response to static and dynamic disturbances. In this paper, the photovoltaic (PV) inverters are considered to operate as virtual energy storage (VES) to flexibly provide grid support, e.g., short-term frequency control to improve the frequency quality, in the context of more IBR-based power systems. More specifically, the PV inverters are dynamically regulating the active power to \"store\" or \"release\" energy to the grid, mimicking the operation of a physical energy storage system. In addition to the grid support, the VES operation can also improve the inverter reliability, and increase the utilization ratio of PV inverters to some extent. Simulation and experimental case studies are presented to demonstrate the VES operation of PV inverters and its effectiveness of inertia support.","PeriodicalId":276307,"journal":{"name":"2022 IEEE 13th International Symposium on Power Electronics for Distributed Generation Systems (PEDG)","volume":"256 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115667676","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