IEEE open journal of power electronics最新文献_第10页

A New Single-Phase High Step-Up Active-Switched Quasi Z-Source NNPC Inverter With Common Ground Feature 具有共地特性的新型单相高升压有源开关准 Z 源 NNPC 逆变器

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IEEE open journal of power electronics Pub Date : 2024-06-21 DOI: 10.1109/OJPEL.2024.3417277

MILAD SHAMOUEI-MILAN;REZA ASGARNIA;MILAD GHAVIPANJEH MARANGALU;KOUROSH KHALAJ MONFARED;YOUSEF NEYSHABOURI;HANI VAHEDI

引用次数: 0

Analysis and Cross-Coupling Elimination of Input-Series Output-Parallel (ISOP) Multi-Channel IPT System 输入-串行-输出-并行 (ISOP) 多通道 IPT 系统的分析和交叉耦合消除

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IEEE open journal of power electronics Pub Date : 2024-06-21 DOI: 10.1109/OJPEL.2024.3417177

Pan Sun;Leyu Wang;Yan Liang;Xusheng Wu;Qijun Deng

{"title":"Analysis and Cross-Coupling Elimination of Input-Series Output-Parallel (ISOP) Multi-Channel IPT System","authors":"Pan Sun;Leyu Wang;Yan Liang;Xusheng Wu;Qijun Deng","doi":"10.1109/OJPEL.2024.3417177","DOIUrl":"10.1109/OJPEL.2024.3417177","url":null,"abstract":"To meet the low-voltage and high-power demand of fast charging of electric vehicles, an ISOP multi-channel inductive power transfer (IPT) system based on LCC-S compensation network is analyzed in this paper. Firstly, the system's improvement of transmission capability is analyzed without considering the cross-coupling. After that, to clarify the cross-coupling impression, the equivalent impedance formula for the inverter output terminals of each channel is calculated. Then, combined with the harmonic characteristics of high order topology, the zero voltage switching (ZVS) condition of each channel is analyzed. Found out that the cross-coupling may lead to a decrease in the instantaneous current value when the inverter is turned on, thereby increasing the risk of losing the ZVS operating state. To eliminate the influence of cross-coupling, a parameter design method is proposed without additional devices and control. Finally, a 3-channel ISOP-IPT system prototype is built. The system achieves an energy transmission of 17.06 kW with an efficiency of 93.22%. Compared with single-channel systems, the power capacity is increased while keeping the input current level unchanged. After compensation, the system achieves equivalent decoupling in the case of cross-coupling, each channel works independently and maintains the input voltage balance.","PeriodicalId":93182,"journal":{"name":"IEEE open journal of power electronics","volume":"5 ","pages":"1014-1029"},"PeriodicalIF":5.0,"publicationDate":"2024-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10568327","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141510971","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

Modulation Improvements for High-Phase-Count Series-Capacitor Buck Converters 改进高相数串联电容器降压转换器的调制功能

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IEEE open journal of power electronics Pub Date : 2024-06-20 DOI: 10.1109/OJPEL.2024.3417017

Gianluca Roberts;Aleksandar Prodić

{"title":"Modulation Improvements for High-Phase-Count Series-Capacitor Buck Converters","authors":"Gianluca Roberts;Aleksandar Prodić","doi":"10.1109/OJPEL.2024.3417017","DOIUrl":"10.1109/OJPEL.2024.3417017","url":null,"abstract":"This article presents three modulation improvements for the series-capacitor buck (SCB) converter and its topological derivatives. The first consists of various phase activation sequences (PHACTSs) which raise the maximum input-to-output voltage conversion ratio of an \u0000<italic>N\u0000-inductor, \u0000<italic>N\u0000-phase SCB converter beyond the traditional limit of 1/\u0000<italic>N\u00002\u0000, without incurring any additional voltage stress to the switches. Phase counts up to 16 are analyzed with conversion ratios increasing by a factor of up to 7. Due to the inherent link between the converter's maximum attainable output voltage and maximum output current slew rate, these PHACTSs offer a significant improvement to the load-voltage transient response. Utilizing the flying capacitors that link adjacent inductors, a second modulation technique is introduced that effectively increases the digital pulse-width-modulator's (DPWM) output-voltage resolution, by a factor of \u0000<italic>N\u0000, by employing a novel method of minimum duty increments (MDIs). Despite the commonly-held assumption of automatic steady-state inductor-current-balancing present in an \u0000<italic>N\u0000-inductor SCB, large-signal modelling reveals that slight current imbalances inevitably arise, even in lossless configurations, with three or more output inductors. After elucidating its origin, this article introduces a third modulation technique that can reduce these inductor current imbalances through a particular implementation of MDI. A discrete prototype of an 11-inductor, 48 V-to-1.0 V, 275 A-load, SCB converter was fabricated to experimentally demonstrate and validate the simulated results of the increase in both the output voltage ceiling and DPWM resolution, as well as to evaluate the MDI-DPWM output-voltage linearity. Finally, the maintenance of both inductor current balancing and low switch-voltage-stress is experimentally substantiated when using MDI.","PeriodicalId":93182,"journal":{"name":"IEEE open journal of power electronics","volume":"5 ","pages":"1071-1092"},"PeriodicalIF":5.0,"publicationDate":"2024-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10565994","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141510973","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

Ancillary Service Provision via Primal-Dual Based Coordination of Distributed Power Electronic Converters in Three-Phase Microgrids 在三相微电网中通过基于原值-双重的分布式电力电子变流器协调提供辅助服务

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IEEE open journal of power electronics Pub Date : 2024-06-20 DOI: 10.1109/OJPEL.2024.3416339

Andrea Lauri;Tommaso Caldognetto;Ruggero Carli;Davide Biadene;Paolo Mattavelli

{"title":"Ancillary Service Provision via Primal-Dual Based Coordination of Distributed Power Electronic Converters in Three-Phase Microgrids","authors":"Andrea Lauri;Tommaso Caldognetto;Ruggero Carli;Davide Biadene;Paolo Mattavelli","doi":"10.1109/OJPEL.2024.3416339","DOIUrl":"https://doi.org/10.1109/OJPEL.2024.3416339","url":null,"abstract":"Electronic power converters are extensively applied in microgrids to interface distributed energy resources to the grid. Besides the primary active-power control, electronic converters support increasingly advanced and flexible control capabilities. While the former is typically bound to local needs (e.g., maximum power extraction from renewables), additional degrees of freedom can be exploited to support microgrid operation. This article proposes a control algorithm that allows the optimal provision of reactive power, negative-sequence, and zero-sequence currents by distributed converters. The resulting operation shows enhanced power quality at the point of common coupling (PCC) and limited conversion losses, which are taken into account in the optimization algorithm. Three modes of operation are discussed, that is, \u0000<italic>i\u0000) power loss minimization; \u0000<italic>ii\u0000) balanced currents at the PCC; \u0000<italic>iii\u0000) zero reactive power flow at the PCC. An algorithm based on the primal-dual method is proposed to solve the optimization problem. Results based on experimental measurements are discussed to prove the effectiveness of the proposal.","PeriodicalId":93182,"journal":{"name":"IEEE open journal of power electronics","volume":"5 ","pages":"976-986"},"PeriodicalIF":5.0,"publicationDate":"2024-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10565993","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141474853","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 Multilevel Current-Driven DC-DC Converter for Wide Range Applications 适用于大范围应用的新型多电平电流驱动 DC-DC 转换器

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IEEE open journal of power electronics Pub Date : 2024-06-19 DOI: 10.1109/OJPEL.2024.3414973

Lucas Melanson;Justin Woelfle;Majid Pahlevani

{"title":"A Novel Multilevel Current-Driven DC-DC Converter for Wide Range Applications","authors":"Lucas Melanson;Justin Woelfle;Majid Pahlevani","doi":"10.1109/OJPEL.2024.3414973","DOIUrl":"https://doi.org/10.1109/OJPEL.2024.3414973","url":null,"abstract":"This article presents a novel multi-level current-driven DC-DC converter along with a modulation scheme that is able to maintain a consistently high efficiency across a wide range of input voltages. This proposed circuit is targeted to applications with a wide range of operating conditions, e.g., PV microinverters, energy storage, etc. Industry standard converters such as the flyback and the LLC resonant converter struggle to accommodate the wide range of voltages, and their efficiency suffers when operating points deviate from the nominal. The proposed approach takes advantage of the multi-level structure and flexibility of the modulation scheme to achieve high performance for a wide operating range. In addition to theoretical analysis of the operation of the converter, this paper demonstrates the functionality and performance of a laboratory prototype in direct comparison to resonant converters to show its superior performance across a wide range. The results validate the benefits of the proposed topology and show a significantly flattened efficiency curve over a wide range of input voltages (0.56% variation over an input voltage range of 32 V to 48 V).","PeriodicalId":93182,"journal":{"name":"IEEE open journal of power electronics","volume":"5 ","pages":"920-935"},"PeriodicalIF":5.0,"publicationDate":"2024-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10564111","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141474852","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

Circuit Dynamics Prediction via Graph Neural Network & Graph Framework Integration: Three Phase Inverter Case Study 通过图神经网络和图框架集成进行电路动态预测：三相逆变器案例研究

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IEEE open journal of power electronics Pub Date : 2024-06-18 DOI: 10.1109/OJPEL.2024.3416195

Ahmed K. Khamis;Mohammed Agamy

{"title":"Circuit Dynamics Prediction via Graph Neural Network & Graph Framework Integration: Three Phase Inverter Case Study","authors":"Ahmed K. Khamis;Mohammed Agamy","doi":"10.1109/OJPEL.2024.3416195","DOIUrl":"https://doi.org/10.1109/OJPEL.2024.3416195","url":null,"abstract":"This article proposes an integration between a graph framework for circuit representation and a Graph neural network (GNN) model suitable for different machine learning (ML) applications. Furthermore, the paper highlights design steps for tailoring and using the GNN-based ML model for converter performance predictions based on converter circuit level and internal parameter variations. Regardless of the number of components or connections present in a converter circuit, the proposed model can be readily scaled to incorporate different converter circuit topologies and may be used to analyze such circuits regardless of the number of components used or control parameters varied. To enable the use of ML methods and applications, all physical and switching circuit properties including operating mode, components and circuit behavior must be accurately mapped to graph representation. The model scalability to other circuit types and different connections and circuits elements is also tested, while being studied in the most common DC-AC inverter in grid connected systems including filter and filterless configurations. The filtered and filterless DC-AC inverter circuits are used to evaluate the model, scoring \u0000<inline-formula><tex-math>$R^{2}$</tex-math></inline-formula>\u0000 greater than 99% in most cases and a mean square error (MSE) tending to zero.","PeriodicalId":93182,"journal":{"name":"IEEE open journal of power electronics","volume":"5 ","pages":"987-1001"},"PeriodicalIF":5.0,"publicationDate":"2024-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10560473","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141500341","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

Coupling-Independent Capacitive Wireless Power Transfer With One Transmitter and Multiple Receivers Using Frequency Bifurcation 利用频率分岔实现与耦合无关的单发射器和多接收器电容式无线电力传输

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IEEE open journal of power electronics Pub Date : 2024-06-13 DOI: 10.1109/OJPEL.2024.3414172

Aris van Ieperen;Stijn Derammelaere;Ben Minnaert

{"title":"Coupling-Independent Capacitive Wireless Power Transfer With One Transmitter and Multiple Receivers Using Frequency Bifurcation","authors":"Aris van Ieperen;Stijn Derammelaere;Ben Minnaert","doi":"10.1109/OJPEL.2024.3414172","DOIUrl":"https://doi.org/10.1109/OJPEL.2024.3414172","url":null,"abstract":"Capacitive wireless power transfer utilizes capacitive coupling to transfer electrical energy wirelessly. Due to the nature of the coupling, it is seen as a well-suited technique for single input multiple outputs configurations. For these systems, optimal solutions for power transfer and efficiency exist, however, with variation in distance or alignment, the coupling varies and as a result, these optimal solutions vary. Therefore, there is a need for coupling-independent approaches to keep these systems within their optimal operating conditions. In this work, we propose a frequency-agile mode, using frequency bifurcation, that allows for a nearly coupling-independent power transfer and efficiency regime for a capacitive wireless power transfer system with one transmitter and multiple receivers. The conditions for bifurcation are described and analytical expressions for the power and transducer gains are determined. It is shown that, when operating at the secondary resonances, nearly constant efficiency and power transfer to the load can be achieved. An experimental setup was realized and the results validate the theoretical results, showcasing a coupling-independent efficiency and power output with a more than four-fold increase in output power at the cost of less than \u0000<inline-formula><tex-math>$5%$</tex-math></inline-formula>\u0000 reduction in absolute efficiency.","PeriodicalId":93182,"journal":{"name":"IEEE open journal of power electronics","volume":"5 ","pages":"891-901"},"PeriodicalIF":5.0,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10556644","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141435409","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

Medium-Voltage Solid-State Transformer Design for Large-Scale H2 Electrolyzers 用于大型 H2 电解槽的中压固态变压器设计

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IEEE open journal of power electronics Pub Date : 2024-06-13 DOI: 10.1109/OJPEL.2024.3414151

Z. Li;R. Mirzadarani;M. Ghaffarian Niasar;M. Itraj;L. van Lieshout;P. Bauer;Z. Qin

{"title":"Medium-Voltage Solid-State Transformer Design for Large-Scale H2 Electrolyzers","authors":"Z. Li;R. Mirzadarani;M. Ghaffarian Niasar;M. Itraj;L. van Lieshout;P. Bauer;Z. Qin","doi":"10.1109/OJPEL.2024.3414151","DOIUrl":"https://doi.org/10.1109/OJPEL.2024.3414151","url":null,"abstract":"In the production of green hydrogen, electrolyzers draw power from renewable energy sources. In this paper, the design of Solid State Transformer (SST) for large-scale H\u00002\u0000 electrolyzers is benchmarked. The three most promising topologies are chosen for design and comparison, including Modular Multi-level Converter (MMC) based SST, Modular Multi-level Resonant (MMR) based SST, and Input-Series-Output-Parallel (ISOP) based SST. The distance between converter towers for insulation and maintenance, the insulation system of the transformer, and the cooling system are designed with practical considerations in order to have an accurate estimation of the volume and weight of the SST. Losses in the switches are calculated based on equations, and losses in passive components are calculated based on FEM simulation. The operating frequency for each topology is optimized to minimize loss, weight, and volume. The best of each topology is then compared with each other to identify the most suitable one for large-scale H\u00002\u0000 electrolyzers.","PeriodicalId":93182,"journal":{"name":"IEEE open journal of power electronics","volume":"5 ","pages":"936-955"},"PeriodicalIF":5.0,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10556593","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141453480","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

Modular Fault Tolerant DC/DC Transformer Enabled by Natural Power Sharing 通过自然功率共享实现模块化容错 DC/DC 变压器

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IEEE open journal of power electronics Pub Date : 2024-06-13 DOI: 10.1109/OJPEL.2024.3414141

Abraham López;Theyllor H. Oliveira;Manuel Arias;Pablo Fernández Miaja;José A. Villarejo;Arturo Fernández

{"title":"Modular Fault Tolerant DC/DC Transformer Enabled by Natural Power Sharing","authors":"Abraham López;Theyllor H. Oliveira;Manuel Arias;Pablo Fernández Miaja;José A. Villarejo;Arturo Fernández","doi":"10.1109/OJPEL.2024.3414141","DOIUrl":"https://doi.org/10.1109/OJPEL.2024.3414141","url":null,"abstract":"The use of a DC/DC Transformer (DCX), composed of low-power individual modules with automatic voltage and power sharing will be presented as a possible solution to increase the input voltage and output power ranges of DCX systems. The input voltage range will be increased through just Input Series – Output Parallel (ISOP) connection and the increased power handling capability will be achieved by Input Parallel – Output Parallel (IPOP) connection. With these modules, it is possible to achieve natural power and voltage sharing using only a common synchronization signal between modules. Thanks to this natural equalization, ISOP and IPOP concepts are extended to form a DCX with a matrix structure which will be tolerant to the loss of one module without compromising the power handling capabilities. The proposed topology is analyzed in detail, including the mechanisms that can affect the distribution of voltages and currents. A reliability analysis and the response of the modular system under a failure situation have also been included. The validation of this proposal has been carried out using a modular prototype for an input voltage and an output voltage of 56 V and 28 V respectively, for a rated power of 200 W, and for a switching frequency of 365 kHz.","PeriodicalId":93182,"journal":{"name":"IEEE open journal of power electronics","volume":"5 ","pages":"902-919"},"PeriodicalIF":5.0,"publicationDate":"2024-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10556642","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141439462","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 Review of Voltage-Clamping Methods for Solid-State Circuit Breakers 固态断路器电压钳位方法综述

IEEE open journal of power electronics Pub Date : 2024-06-07 DOI: 10.1109/OJPEL.2024.3411110

Gioele Gregis;Luigi Piegari;Luca Raciti;Thomas Masper

{"title":"A Review of Voltage-Clamping Methods for Solid-State Circuit Breakers","authors":"Gioele Gregis;Luigi Piegari;Luca Raciti;Thomas Masper","doi":"10.1109/OJPEL.2024.3411110","DOIUrl":"https://doi.org/10.1109/OJPEL.2024.3411110","url":null,"abstract":"In recent years, the interest in DC systems has increased dramatically because of some key advantages, in terms of efficiency and reliability, that this technology can offer compared to AC systems in applications such as shipboard distribution, more electric aircrafts, DC microgrids, battery protection, and photovoltaics. In this context, DC circuit breakers based on power semiconductors, the so-called solid-state circuit breakers, are becoming a popular choice because of their fast intervention speed, which is typically on the order of microseconds. Unfortunately, power electronics are vulnerable to “breakdown”, which is a dangerous operating condition triggered by overvoltages. During current interruption, the energy stored in the inductive elements of the system must be dissipated, and this typically creates a very high voltage spike on the interrupting component, which is the breaker pole. This phenomenon, if not controlled, could lead to the premature failure of the semiconductor inside the solid-state circuit breaker. For this reason, suitable techniques aimed to control the voltage gradient and overshoot during interruption have been presented in the literature. This paper analyzes and compares the performances of the voltage-clamping solutions presented in the technical literature, which range from simple passive devices to more advanced solutions.","PeriodicalId":93182,"journal":{"name":"IEEE open journal of power electronics","volume":"5 ","pages":"873-890"},"PeriodicalIF":0.0,"publicationDate":"2024-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10551911","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141422563","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