IEEE open journal of power electronics最新文献

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A Multilevel Current-Fed DAB Converter With Direct Power Transfer 具有直接功率传输功能的多电平电流馈电 DAB 转换器
IF 5
IEEE open journal of power electronics Pub Date : 2024-10-08 DOI: 10.1109/OJPEL.2024.3476496
Sajjad Goudarzitaemeh;Lucas Melanson;Justin Woelfle;Majid Pahlevani
{"title":"A Multilevel Current-Fed DAB Converter With Direct Power Transfer","authors":"Sajjad Goudarzitaemeh;Lucas Melanson;Justin Woelfle;Majid Pahlevani","doi":"10.1109/OJPEL.2024.3476496","DOIUrl":"https://doi.org/10.1109/OJPEL.2024.3476496","url":null,"abstract":"This paper proposes a novel modulation scheme for a multilevel Dual Active Bridge (DAB) DC–DC converter with direct power transfer capability in PV applications. The proposed modulation scheme has the ability to shape the high-frequency current waveforms, leading to lower peak/RMS values of current over a wide range of PV voltages. In addition, the multi-level structure allows for the use of low-voltage devices with significantly smaller channel resistance. The power circuit topology is based on a current-fed half-bridge (CF-HB) converter, with a coupled inductor, which facilitates the direct power transfer, resulting in significantly lower conduction losses. In summary, the proposed topology tackles both the conduction and switching losses through a multi-faceted approach by using the novel modulation scheme, the multi-level structure, the direct power transfer, and the inherent soft-switching. Detailed mathematical analysis and extensive experimental results demonstrate the superior performance of the proposed converter.","PeriodicalId":93182,"journal":{"name":"IEEE open journal of power electronics","volume":"5 ","pages":"1612-1628"},"PeriodicalIF":5.0,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10709643","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142550503","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analytical Loss Model for Magnetic Cores Based on Vector Magnetic Circuit Theory 基于矢量磁路理论的磁芯损耗分析模型
IF 5
IEEE open journal of power electronics Pub Date : 2024-10-08 DOI: 10.1109/OJPEL.2024.3476166
Chengbo Li;Ming Cheng;Wei Qin;Zheng Wang;Xiang Ma;Wei Wang
{"title":"Analytical Loss Model for Magnetic Cores Based on Vector Magnetic Circuit Theory","authors":"Chengbo Li;Ming Cheng;Wei Qin;Zheng Wang;Xiang Ma;Wei Wang","doi":"10.1109/OJPEL.2024.3476166","DOIUrl":"https://doi.org/10.1109/OJPEL.2024.3476166","url":null,"abstract":"Currently, some empirical formula methods, such as the Steinmetz equation, have been widely used in calculating high-frequency magnetic core loss. Although these methods may provide satisfactory accuracy under some certain conditions, they not only cannot present clear physical interpretation and fail to account for the origin and variation of losses, but also offer much lower accuracy for wide operation ranges. In this article, a new analytical model is proposed for the first time to predict core loss by the new vector magnetic circuit theory. In addition to reluctance, two new components, i.e., magductance and hysteretance are proposed in the vector magnetic circuit, which are used to describe the eddy-current loss and the hysteresis loss, respectively. Thus, the clear physical significance is available with the proposed loss model. Given the geometrical and physical parameters of cores, the loss can be predicted. Furthermore, the uneven distribution of magnetic flux inside the magnetic core is characterized by parallel vector magnetic circuits. By comparing with the available empirical formulas, it has been proven that the proposed analytical model not only offers clear physical concepts, but also has much higher accuracy.","PeriodicalId":93182,"journal":{"name":"IEEE open journal of power electronics","volume":"5 ","pages":"1659-1670"},"PeriodicalIF":5.0,"publicationDate":"2024-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10707354","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142550547","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research Insights on Recent Power Converter Topologies and Control Strategies for Wireless EV Chargers: A Comprehensive Study 最新电动汽车无线充电器电源转换器拓扑和控制策略研究透视:综合研究
IF 5
IEEE open journal of power electronics Pub Date : 2024-10-04 DOI: 10.1109/OJPEL.2024.3474707
Venugopal Ramadoss;Balaji Chandrasekar;M.M.R. Ahmed;Dominic Savio A;Narayanamoorthi Rajamanickam;Thamer A. H. Alghamdi
{"title":"Research Insights on Recent Power Converter Topologies and Control Strategies for Wireless EV Chargers: A Comprehensive Study","authors":"Venugopal Ramadoss;Balaji Chandrasekar;M.M.R. Ahmed;Dominic Savio A;Narayanamoorthi Rajamanickam;Thamer A. H. Alghamdi","doi":"10.1109/OJPEL.2024.3474707","DOIUrl":"https://doi.org/10.1109/OJPEL.2024.3474707","url":null,"abstract":"Electric vehicles (EVs) penetrating the transportation sector are accelerated through environmental concerns, low prices, and increased power density. At the same time, the technologies for wireless charging of EVs are advancing due to their convenience, cost-effectiveness, and reliability as charging solutions. The crucial part of Wireless EV (W-EV) chargers, apart from charging pads and compensation, is the power electronics converters. These converters are essential for converting electrical energy into an appropriate form for efficient transmission and reception. This article provides a comprehensive review of the recent advancements in power converter topologies and their control methods used in W-EV chargers. Depending on the specific requirements of the W-EV charger, these converters can be classified into DC-DC, DC-AC, AC-AC, and AC-DC converters. In addition, the article explores specialized converters such as multiple-stage, multiple-phase, multiple transmitter and multiple receiver-based converters, discussing their technical details, merits and limitations. The control techniques for the power electronics converters utilised in W-EV chargers such as transmitter-side control, receiver-side control and dual controls are presented along with various technical comparative analyses. Challenges and future research directions in advanced power converter topologies for W-EV chargers are outlined at last. This article assists researchers in gaining insights into the recent technological advancements and developments aimed at enhancing the performance of the W-EV charger.","PeriodicalId":93182,"journal":{"name":"IEEE open journal of power electronics","volume":"5 ","pages":"1641-1658"},"PeriodicalIF":5.0,"publicationDate":"2024-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10705693","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142550546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of an Artificial Neural Network Based Thermal Model for Heat Sinks in Power Electronics Applications 为电力电子应用中的散热器开发基于人工神经网络的热模型
IF 5
IEEE open journal of power electronics Pub Date : 2024-09-27 DOI: 10.1109/OJPEL.2024.3469231
David Molinero;Daniel Santamargarita;Emilio Bueno;Miroslav Vasic;Marta Marrón
{"title":"Development of an Artificial Neural Network Based Thermal Model for Heat Sinks in Power Electronics Applications","authors":"David Molinero;Daniel Santamargarita;Emilio Bueno;Miroslav Vasic;Marta Marrón","doi":"10.1109/OJPEL.2024.3469231","DOIUrl":"https://doi.org/10.1109/OJPEL.2024.3469231","url":null,"abstract":"Heat sinks are a fundamental component of power electronics converters, so it is important to have a reliable method to study and optimize their size. Thermal analysis of heat sinks can be a complex problem as it involves different heat transfer mechanisms, and it is often necessary to use finite element simulations to obtain accurate results. However, these simulations, being very slow, are relegated to the validation process. This paper proposes a thermal model of heat sinks based on artificial neural networks. The model, unlike previous state-of-the-art models that only obtain the average temperature of the heat sink, is able to obtain a thermal map of the heat sink surface, as if it were an image, by using convolutional layers. The main advantage of this approach is that using these convolutional layers, the model is able to efficiently process how the elements are distributed on the heat sink. This model, valid for heat sinks of very different sizes in both laminar and turbulent flow, has an error of less than 1.5% and is 1500 times faster than finite element simulations, so it can be easily used in brute-force optimization processes, where many different designs need to be analyzed.","PeriodicalId":93182,"journal":{"name":"IEEE open journal of power electronics","volume":"5 ","pages":"1500-1509"},"PeriodicalIF":5.0,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10696942","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142447193","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparison Between UKF and EKF in Sensorless Synchronous Reluctance Motor Drives 无传感器同步磁阻电机驱动器中 UKF 和 EKF 的比较
IF 5
IEEE open journal of power electronics Pub Date : 2024-09-26 DOI: 10.1109/OJPEL.2024.3469533
Saverio Rigon;Benedikt Haus;Paolo Mercorelli;Mauro Zigliotto
{"title":"Comparison Between UKF and EKF in Sensorless Synchronous Reluctance Motor Drives","authors":"Saverio Rigon;Benedikt Haus;Paolo Mercorelli;Mauro Zigliotto","doi":"10.1109/OJPEL.2024.3469533","DOIUrl":"https://doi.org/10.1109/OJPEL.2024.3469533","url":null,"abstract":"The reduction of the human environmental footprint can be achieved through the use of more efficient motors, such as synchronous reluctance motors (SynRMs). Known for their affordability, SynRMs are increasingly employed in sensorless AC drives. This paper presents a critical comparison of sensorless algorithms based on two nonlinear Kalman Filters (Unscented and Extended). The objective is to highlight the theoretical and practical advantages and drawbacks of each method when applied to the speed control of a SynRM, culminating in a definitive decision on the best choice. The magnetic model of the SynRM is much more nonlinear than that of induction motors, which are predominantly addressed in existing literature. This study aims to fill the gap by answering the question: “Is the extended Kalman filter still the best choice even in the case of nonlinear electric motors?” The answer comes through a large batch of experiments, including speed and load torque tests, zero-speed standstill starts, parameter sensitivity, and evaluation of computational burdens for both Kalman filter algorithms.","PeriodicalId":93182,"journal":{"name":"IEEE open journal of power electronics","volume":"5 ","pages":"1562-1572"},"PeriodicalIF":5.0,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10696945","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142447140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Comprehensive Review on DC Fast Charging Stations for Electric Vehicles: Standards, Power Conversion Technologies, Architectures, Energy Management, and Cybersecurity 电动汽车直流快速充电站综述:标准、电源转换技术、架构、能源管理和网络安全
IF 5
IEEE open journal of power electronics Pub Date : 2024-09-24 DOI: 10.1109/OJPEL.2024.3466936
Gabriele Arena;Andrii Chub;Mykola Lukianov;Ryszard Strzelecki;Dmitri Vinnikov;Giovanni De Carne
{"title":"A Comprehensive Review on DC Fast Charging Stations for Electric Vehicles: Standards, Power Conversion Technologies, Architectures, Energy Management, and Cybersecurity","authors":"Gabriele Arena;Andrii Chub;Mykola Lukianov;Ryszard Strzelecki;Dmitri Vinnikov;Giovanni De Carne","doi":"10.1109/OJPEL.2024.3466936","DOIUrl":"https://doi.org/10.1109/OJPEL.2024.3466936","url":null,"abstract":"This paper aims to review the main research points regarding DC fast charging stations. At the beginning, the paper addresses an overview of DC fast charging standards, galvanic isolation, EV powertrain, and some examples of real DC fast chargers. This part highlights that DC fast chargers are usually connected to an AC network or microgrid, whereas DC microgrids would be a better choice to increase the charging efficiency and reduce the costs. However, the lack of standards in terms of protection and metering made their spread limited for the moment. Moreover, the paper describes the power converter topologies typically adopted in DC fast charging stations and emerging solutions to interface EVs with both 400 V and 800 V powertrains. Then, the paper explains the main architectural features of DC fast charging stations connected to DC networks or microgrids because of their potential to become the standard infrastructure in this field. Furthermore, the energy management strategies for DC fast charging stations are discussed, taking into account their relevant goals. Finally, cybersecurity issues of charging stations are covered, also considering their impact on grid and electric vehicle supply equipment, and providing a particular discussion regarding DC fast charging stations.","PeriodicalId":93182,"journal":{"name":"IEEE open journal of power electronics","volume":"5 ","pages":"1573-1611"},"PeriodicalIF":5.0,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10691639","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142447139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Novel Cost-Effective Controller Hardware-In-The-Loop (CHIL) Test for SSCB Coordination in DC Microgrid Systems 用于直流微电网系统中 SSCB 协调的成本效益型新型控制器硬件在环(CHIL)测试
IF 5
IEEE open journal of power electronics Pub Date : 2024-09-23 DOI: 10.1109/OJPEL.2024.3466188
Shervin Salehi Rad;Elias Nad;Michael Muhlbaier;Oleg Fishman;Javad Chevinly;Zilong Zheng;Shuyan Zhao;Fei Lu;Hua Zhang
{"title":"A Novel Cost-Effective Controller Hardware-In-The-Loop (CHIL) Test for SSCB Coordination in DC Microgrid Systems","authors":"Shervin Salehi Rad;Elias Nad;Michael Muhlbaier;Oleg Fishman;Javad Chevinly;Zilong Zheng;Shuyan Zhao;Fei Lu;Hua Zhang","doi":"10.1109/OJPEL.2024.3466188","DOIUrl":"https://doi.org/10.1109/OJPEL.2024.3466188","url":null,"abstract":"DC microgrid systems are increasingly utilized in power systems, and the significance of solid-state circuit breakers (SSCB) is paramount due to the absence of zero-crossing current in DC systems. However, one of the concerns in a DC microgrid is proposing and implementing a new algorithm due to safety concerns and system stability. Properly coordinating a DC microgrid is one of these challenges. Moreover, protecting the system from unpredictable transient overshoot plays a significant role in system stability and SSCB performance. Consequently, the design of a virtual test platform for monitoring the system's behavior in challenging situations holds significant importance. To address these matters, this paper presents an examination of a DC microgrid using a novel, easy-to-implement, and cost-effective controller hardware-in-the-loop (CHIL) test platform. This platform utilizes MATLAB/Simulink software as a simulator and proposes a new communication path between the simulator and real-world controllers. Additionally, a new method to control the system in overshoot situations is proposed. To demonstrate the effectiveness of the proposed CHIL platform, three short-circuit CHIL tests are performed for load#1 to load#3 at 430 A, 300 A, and 180 A fault currents, respectively. To investigate the designed algorithm protection, a complex protection experiment was conducted to evaluate the performance of the designed algorithm under multiple transient overshoot conditions in the current. The extracted CHIL results are also presented as the validation of proposed algorithm.","PeriodicalId":93182,"journal":{"name":"IEEE open journal of power electronics","volume":"5 ","pages":"1510-1519"},"PeriodicalIF":5.0,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10689251","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142447167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Family of High-Gain Single-Switch DC-DC Converters for High-Intensity Discharge Lamps 用于高强度气体放电灯的高增益单开关 DC-DC 转换器系列
IF 5
IEEE open journal of power electronics Pub Date : 2024-09-17 DOI: 10.1109/OJPEL.2024.3462715
Hossein Gholizadeh;Saman A. Gorji;Dezso Sera
{"title":"A Family of High-Gain Single-Switch DC-DC Converters for High-Intensity Discharge Lamps","authors":"Hossein Gholizadeh;Saman A. Gorji;Dezso Sera","doi":"10.1109/OJPEL.2024.3462715","DOIUrl":"10.1109/OJPEL.2024.3462715","url":null,"abstract":"This research paper presents a novel series of high-gain DC-DC converters developed explicitly to power High-Intensity Discharge (HID) lamps. The suggested configurations utilize Voltage Multiplier Cells (VMCs) and incorporate a diode to achieve ground separation. The inclusion of a diode improves voltage gains while ensuring compatibility with the requirements of HID lamps. The modified boost topology maintains a continuous input current and minimizes stress on the input filter capacitors. This study introduces the concepts of Small Signal Modelling and Bode diagrams in the context of controller design. Additionally, open-loop and closed-loop tests are conducted to observe and analyze steady-state and transient responses. The performance of the proposed topologies is analyzed under both ideal and non-ideal operating conditions. The simulation and experimental results are presented for comparison. The benefits of the proposed solutions are underscored by efficiency calculations and a comparative analysis with recently proposed topologies. The experimental findings provide empirical evidence supporting the theoretical conjectures, showcasing an efficiency of more than 93 % for a 60W prototype. Furthermore, these results affirm a strong concurrence among the simulation, experimental, and analytical approaches.","PeriodicalId":93182,"journal":{"name":"IEEE open journal of power electronics","volume":"5 ","pages":"1534-1561"},"PeriodicalIF":5.0,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10681659","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142250134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Multi-Hardware-in-the-Loop Laboratory Testing of Power Converters and Intelligent Electronic Devices for Large-Scale Power System Applications 大规模电力系统应用中的电力转换器和智能电子设备的多硬件在环实验室测试
IF 5
IEEE open journal of power electronics Pub Date : 2024-09-16 DOI: 10.1109/OJPEL.2024.3460709
Salvatore D'Arco;Santiago Sanchez-Acevedo;Jon Are Suul
{"title":"Multi-Hardware-in-the-Loop Laboratory Testing of Power Converters and Intelligent Electronic Devices for Large-Scale Power System Applications","authors":"Salvatore D'Arco;Santiago Sanchez-Acevedo;Jon Are Suul","doi":"10.1109/OJPEL.2024.3460709","DOIUrl":"https://doi.org/10.1109/OJPEL.2024.3460709","url":null,"abstract":"This paper presents an approach and a corresponding laboratory infrastructure for multi-hardware-in-the-loop (M-HiL) testing of power converters and intelligent electronic devices (IEDs) with wide area features for power system monitoring and control. The basis for the testing environment is a digital real-time simulation (RTS) platform which can be utilized for phasor-based or hybrid phasor and electromagnetic transient (EMT) power system simulation. A high-bandwidth power amplifier is used for interfacing the real-time simulated power system to the power hardware. The necessary elements and their interfaces required for realizing the M-HiL testing are highlighted in the paper. Finally, a complete example of an M-HiL test based on real-time simulation of the Nordic 44 (N44)-bus power system model is presented. The test setup includes two phasor measurement units (PMUs) with their corresponding communication layers and a converter configuration for scaled emulation of the HVDC transmission system of an offshore wind farm. The configuration also includes a grid forming converter unit operated in parallel to the grid-side HVDC terminal. The presented test demonstrates how a grid forming converter operated as a Virtual Synchronous Machine (VSM) can provide frequency support to the Nordic power system and how this support would be recorded by the PMUs.","PeriodicalId":93182,"journal":{"name":"IEEE open journal of power electronics","volume":"5 ","pages":"1520-1533"},"PeriodicalIF":5.0,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10680574","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142447093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Single-Stage Non-Isolated Multiport Y-Converter for Interlinking 400 V DC Microgrids With the Three-Phase AC Grid 用于 400 V 直流微电网与三相交流电网互联的单级非隔离多端口 Y 型逆变器
IF 5
IEEE open journal of power electronics Pub Date : 2024-09-16 DOI: 10.1109/OJPEL.2024.3462773
Ahmed Y. Farag;Davide Biadene;Tommaso Caldognetto;Paolo Mattavelli
{"title":"Single-Stage Non-Isolated Multiport Y-Converter for Interlinking 400 V DC Microgrids With the Three-Phase AC Grid","authors":"Ahmed Y. Farag;Davide Biadene;Tommaso Caldognetto;Paolo Mattavelli","doi":"10.1109/OJPEL.2024.3462773","DOIUrl":"10.1109/OJPEL.2024.3462773","url":null,"abstract":"The integration of dc microgrids (MGs) into distribution networks offers a promising solution to address the growing demand for electric energy by facilitating the incorporation of renewable energy sources and energy storage systems. To ensure sustained and reliable operation, dc MGs are commonly linked to utility grids through interlinking converters. However, with the increasing adoption of small-scale dc MGs for residential and commercial applications, the traditional approach of using a dedicated converter for each MG can significantly increase system size and cost. This paper proposes a single-stage non-isolated multiport converter (MPC) to interface the three-phase ac grid with 400 V dc MGs. The MPC enables direct power sharing between dc MGs, minimizes the dependence on the ac grid, and enhances the efficiency and power density of the power electronic interface compared to using multiple two-port converters. The motivations for the proposed converter include its single-stage power conversion among different ports, potentially leading to enhanced efficiency and power density. Furthermore, the absence of bulky intermediate dc-link capacitors and transformers in the proposed topology contributes to improved power density and reduced costs. Although designed for 400 V dc MGs in this study, the proposed MPC boasts buck-boost capability and bidirectional power flow at all ports, independent of the dc ports' voltage, providing the flexibility to directly interface with a wide range of dc systems. The performance of the converter is assessed through experimental tests under various operating conditions.","PeriodicalId":93182,"journal":{"name":"IEEE open journal of power electronics","volume":"5 ","pages":"1432-1445"},"PeriodicalIF":5.0,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10681266","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142250137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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