2022 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)最新文献

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Deep Learning Framework for Inverse Kinematics Mapping for a 5 DoF Robotic Manipulator 五自由度机器人逆运动学映射的深度学习框架
2022 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) Pub Date : 2022-12-14 DOI: 10.1109/PEDES56012.2022.10080260
V. J, Bharat Singh, Ankit Vijayvargiya, Rajesh Kumar
{"title":"Deep Learning Framework for Inverse Kinematics Mapping for a 5 DoF Robotic Manipulator","authors":"V. J, Bharat Singh, Ankit Vijayvargiya, Rajesh Kumar","doi":"10.1109/PEDES56012.2022.10080260","DOIUrl":"https://doi.org/10.1109/PEDES56012.2022.10080260","url":null,"abstract":"Robotic manipulators have several applications, such as in manufacturing, surgery, transport, etc. Appropriate control techniques are essential to avoid undesirable consequences. Deep learning has been shown to be useful in robotic manipulator control. This paper presents a deep learning frame-work for the mapping of inverse kinematics (IK) for as-degree of freedom robotic manipulator. The framework provides a mapping from joint angles to end-effector position and orientation. Inputs used for the networks are the desired trajectory points and outputs are the joint angles. Additionally, a vector-based mean absolute error loss function is proposed for the training of different deep learning networks. The framework is investigated based on the position error and orientation error between the calculated and actual trajectory, and the computational time required to predict the joint angle values for the reference trajectory. The results show that the implementation of neural networks facilitated the quicker prediction of the joint angles. The best joint angle prediction in terms of minimum position error with the least amount of time is provided by the Deep Neural Network, whereas Long Short Term Memory performs better for orientation error.","PeriodicalId":161541,"journal":{"name":"2022 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132710361","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
Hybrid Microgrid with Advanced Complex Band Pass Filter Based FLL Control 基于先进复杂带通滤波器的FLL控制混合微电网
2022 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) Pub Date : 2022-12-14 DOI: 10.1109/PEDES56012.2022.10080422
S. Bhattacharyya, Bhim Singh
{"title":"Hybrid Microgrid with Advanced Complex Band Pass Filter Based FLL Control","authors":"S. Bhattacharyya, Bhim Singh","doi":"10.1109/PEDES56012.2022.10080422","DOIUrl":"https://doi.org/10.1109/PEDES56012.2022.10080422","url":null,"abstract":"This paper deals with the smooth transition between grid connected mode to an islanded mode and the stator terminals of the DFIG synchronization. The system considers battery, photovoltaic (PV) array and doubly fed induction generator (DFIG). In an islanded mode, battery-based grid forming converter (GFC) controls the voltage and frequency at the common connection point (CCP) or point of common coupling (PCC). The grid side converter (GSC) of the DFIG is connected to the CCP via the interfacing inductors. The DC-link between the GSC and rotor side converter (RSC) is regulated by the GSC control algorithm. The RSC control of the DFIG is divided into two parts. In the first part, the RSC control develops the controlled stator terminal voltage and frequency at the stator windings, which is connected to the CCP via a solid-state switch (STS). The second part of the RSC control provides the essential quantity of reactive power demand by DFIG and also extracts the peak wind power. The maximum PV array power is extracted and fed to the CCP via a voltage source converter (VSC) and the interfacing inductors. An advanced control complex band pass filter-based FLL (CBPF-FLL) control is used to control the battery-based VSC during the grid mode of operation. This control provides improved power quality like unity power factor and lower harmonics in grid current as per the IEEE-519 standard.","PeriodicalId":161541,"journal":{"name":"2022 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133302052","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
Split-Winding Switched Reluctance Machine to Minimize Torque Ripple 分绕组开关磁阻电机,以减少转矩波动
2022 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) Pub Date : 2022-12-14 DOI: 10.1109/PEDES56012.2022.10080363
N. Sundar S., Prathap B. Reddy, Subhabrata Basak, L. Umanand, K. Gopakumar
{"title":"Split-Winding Switched Reluctance Machine to Minimize Torque Ripple","authors":"N. Sundar S., Prathap B. Reddy, Subhabrata Basak, L. Umanand, K. Gopakumar","doi":"10.1109/PEDES56012.2022.10080363","DOIUrl":"https://doi.org/10.1109/PEDES56012.2022.10080363","url":null,"abstract":"Switched reluctance machines (SRM) are recommended for electric vehicle applications due to their merit points over other rotating electrical machines like robust structure, high efficiency at a lower speed, higher fault tolerance capability, and permanent magnet-less feature. However, in conventional SRM, the torque ripple is high, which causes vibration issues. The torque ripple will be further amplified in proportion to the power rating of the machine. In this paper, a split-winding switched reluctance machine (SW -SRM) is presented with a split-winding concept. The actual phase winding of one phase is distributed over the two adjacent poles of SRM. The split winding helps to maintain the torque in an aligned as well as unaligned position of the rotor and stator poles and reduce the torque ripple produced by the SRM with a proper excitation scheme. To validate the proposed split winding concept, a 50kW SW-SRM has been modeled and simulated with the help of FEA (Finite Element Analysis) tools. From these studies, the magnetic characteristics like flux density, inductance, and torque for various rotor positions and stator currents are captured and used as a lookup table. These look-up tables are utilized for modeling the SW-SRM in MATLAB. A comparison study on torque ripple produced by 50kW SRM and SW-SRM is performed based on the MATLAB simulation results.","PeriodicalId":161541,"journal":{"name":"2022 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131999671","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
Generic Predictive Control Algorithm to Eliminate the Common-Mode Voltage in Multilevel Three-Phase Inverters 消除多电平三相逆变器共模电压的通用预测控制算法
2022 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) Pub Date : 2022-12-14 DOI: 10.1109/PEDES56012.2022.10080286
Anurag Kammari, M. Aware, Sudheer Adigintla
{"title":"Generic Predictive Control Algorithm to Eliminate the Common-Mode Voltage in Multilevel Three-Phase Inverters","authors":"Anurag Kammari, M. Aware, Sudheer Adigintla","doi":"10.1109/PEDES56012.2022.10080286","DOIUrl":"https://doi.org/10.1109/PEDES56012.2022.10080286","url":null,"abstract":"Medium-voltage industrial motor drives have been facing the problem of common-mode voltage(CMV) for the past few decades. Multilevel inverters provide not only better inverter performance but also greater electrical motor utilization. Conventional control of inverters with SVPWM has to limit constraints to accommodate the non-linearity and operational flexibility. The predictive controller can build the cost function to accommodate all possible improvement functions that are preferred over these conventional inverter-driven machines. This paper describes a generic approach to developing a predictive control algorithm for two-, three-, and five-level diode-clamped inverters. This algorithm provided the choice of optimal voltage vector selection in the elimination of the common-mode-voltages in three-phase inverters. The effectiveness of these switching voltage vectors also contributes to the improvement of inverter efficiency and DC-bus utilization. The implementation of this generic algorithm has been verified through simulation and laboratory prototypes.","PeriodicalId":161541,"journal":{"name":"2022 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134120019","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
Integrated Transmission and Distribution Optimal Power Flow Simulation Using Linear Decision Approach 基于线性决策方法的综合输配电最优潮流仿真
2022 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) Pub Date : 2022-12-14 DOI: 10.1109/PEDES56012.2022.10080002
Olalekan Ogundairo, S. Kamalasadan, Biju K
{"title":"Integrated Transmission and Distribution Optimal Power Flow Simulation Using Linear Decision Approach","authors":"Olalekan Ogundairo, S. Kamalasadan, Biju K","doi":"10.1109/PEDES56012.2022.10080002","DOIUrl":"https://doi.org/10.1109/PEDES56012.2022.10080002","url":null,"abstract":"The existing solutions to the simulations of a transmission network(TN) and distribution network(DN) involve solving each of the networks separately, however with grid modernization DN are becoming active and depending on the penetration level can have a significant effect on TN as a result of reverse power flow from DN interconnected devices. In this paper, an optimal power flow framework was used to solve transmission and distribution systems together using an integrated optimization engine (IOE) with a linear decision rule (LDR) to enable the integrated system to adjust itself when fast changes are occurring in the network due to distributed generation. This enables the architecture to operate optimally and beneficially which improves economic operation and minimizes voltage rise. Our proposed methodology was implemented on an integrated T&D network using the IEEE 9 bus & 13 bus interconnection.","PeriodicalId":161541,"journal":{"name":"2022 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)","volume":"139 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133823754","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 Non-linear Adaptive Virtual Impedance (NLAVI) based Approach for Sharing Asymmetrical Currents 基于非线性自适应虚拟阻抗(NLAVI)的非对称电流共享方法
2022 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) Pub Date : 2022-12-14 DOI: 10.1109/PEDES56012.2022.10080721
A. S. Vijay, S. M. Dubey, S. Doolla
{"title":"A Non-linear Adaptive Virtual Impedance (NLAVI) based Approach for Sharing Asymmetrical Currents","authors":"A. S. Vijay, S. M. Dubey, S. Doolla","doi":"10.1109/PEDES56012.2022.10080721","DOIUrl":"https://doi.org/10.1109/PEDES56012.2022.10080721","url":null,"abstract":"Increased single-phase penetration of converter based distributed generators (DGs) such as rooftop solar photo-voltaic (PV) units exasperates the asymmetry in the distribution system. The unbalanced single phase loads may give rise to issues such as increased currents, heating, neutral point voltage shifts etc. From the considerations of efficiency and safety, it is desirable to have a close to perfectly balanced three-phase system. In view of this, several control modifications for the sharing of unbalanced/ asymmetrical currents amongst DGs is being reported recently in the literature. This work proposes a modified non-linear adaptive virtual impedance (NLAVI) shaping technique to achieve closer to proportional sharing of unbalanced currents in an islanded active distribution network. In addition, a seperate negative sequence control loop improves the unbalance at the point of common coupling (PCC) voltage. Simulation results for a system with two converters: three-leg and four-leg inverter based DGs and some preliminary controller hardware-in-loop (CHIL) validations on the proposal have been presented. Further, CHIL results for a hybrid system with one three-leg and one four-leg inverter based DG are also discussed.","PeriodicalId":161541,"journal":{"name":"2022 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115191372","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
Economic Emission Dispatch with wind Farms using Opposition based Competitive Swarm Optimizer 基于对立竞争群优化的风电场经济排放调度
2022 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) Pub Date : 2022-12-14 DOI: 10.1109/PEDES56012.2022.10080573
Soumyabrata Das, S. Roga, Priti Das
{"title":"Economic Emission Dispatch with wind Farms using Opposition based Competitive Swarm Optimizer","authors":"Soumyabrata Das, S. Roga, Priti Das","doi":"10.1109/PEDES56012.2022.10080573","DOIUrl":"https://doi.org/10.1109/PEDES56012.2022.10080573","url":null,"abstract":"With the increasing requisition of clean and green energy resources, the dispatch of a smooth electricity supply is a great challenge for system engineers. Thermal generating units consider the fuel and emission costs together while complying with economic load dispatch. On the other hand, green energy sources such as wind power plants reduce the cost of thermal power generators along with emission mitigation despite the wind speed uncertainties. Therefore in this paper, an economic emission dispatch optimization model is represented, which caters to the fuel cost, emission cost, and the wind power cost altogether. To solve such a complex optimization problem, a new algorithm called the Opposition-based Competitive Swarm Optimizer (OCSO) algorithm is used in this work. Three-fourths of the total swarm is updated in each iteration of the OCSO algorithm, which is a modified version of the Competitive Swarm Optimizer algorithm (CSO). The OCSO has the ability to improve the exploration property of the original CSO algorithm most effectively. To prove the efficacy of OCSO, several case studies are conducted and analyzed. The convergence results demonstrate the more extraordinary exploration ability of the algorithm in comparison to others.","PeriodicalId":161541,"journal":{"name":"2022 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114625262","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
Frequency Control Support in Low Inertia Power Grid by Energy Storage Systems: A Techno-Economic Analysis 储能系统支持低惯量电网的频率控制:技术经济分析
2022 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) Pub Date : 2022-12-14 DOI: 10.1109/PEDES56012.2022.10080035
Hafiz Zubyrul Kazme, Khwrwmdao Basumatary
{"title":"Frequency Control Support in Low Inertia Power Grid by Energy Storage Systems: A Techno-Economic Analysis","authors":"Hafiz Zubyrul Kazme, Khwrwmdao Basumatary","doi":"10.1109/PEDES56012.2022.10080035","DOIUrl":"https://doi.org/10.1109/PEDES56012.2022.10080035","url":null,"abstract":"The road towards decarbonization and production of sustainable and cheap electricity relies on the use of renewable energy sources such as solar and wind. However, such converter-based plants do not contribute kinetic energy to the system, and so substitution of traditional plants with renewables causes the system kinetic energy to drop, making the grid more unstable and vulnerable to disturbances which in turn increases the use and dependability on frequency containment reserves. Hence the need for increased power requirement and higher ramp rates from the reserves would result in an exponential increase in cost for availing of such services. A solution to mitigate imbalances in grid system power could be found through the utilization of energy storage systems (ESS). The ESS can provide faster and higher power support while keeping the cost comparatively low at high power requirements. A novel research was conducted on a modified N ordic-32 Test system using PSS®E simulation software where various solar PV plants and wind turbines were placed according to Nordic development plans to simulate the future Nordic grid with different levels of renewable energy penetration (REP) and estimate the amount of frequency containment reserve for disturbance (FCR-D) required for N-1 contingency disturbance and compare the overall cost of FCR-D using traditional sources and ESS using Lithium-ion and Vanadium Redox flow b atteries. The results showed the performance of the ESS for frequency regulation was better compared to conventional hydro turbines, showing smaller initial system frequency dip and flexible power r amp-up r ates as required at different REP levels. The overall cost of FCR-D services was reduced by 40% or more when FCR-D services were provided by a combined contribution from traditional sources and ESS when compared to traditional sources alone.","PeriodicalId":161541,"journal":{"name":"2022 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114781466","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
Reconfigured Multi-Switch Fault-Tolerant DC-DC Converter for DC Microgrid Applications 用于直流微电网应用的重构多开关容错DC-DC变换器
2022 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) Pub Date : 2022-12-14 DOI: 10.1109/PEDES56012.2022.10080109
P. K. Pedapati, A. H. Chander
{"title":"Reconfigured Multi-Switch Fault-Tolerant DC-DC Converter for DC Microgrid Applications","authors":"P. K. Pedapati, A. H. Chander","doi":"10.1109/PEDES56012.2022.10080109","DOIUrl":"https://doi.org/10.1109/PEDES56012.2022.10080109","url":null,"abstract":"In this paper, a two-stage modified boost dc-dc converter cascaded with a bidirectional non-isolated converter is reconfigured to inherit multiple switch faults to ascertain the continuity in supply making it a reliable converter for secluded dc microgrid. The operations have been studied in detail for various combinations of single and multiple switch faults. A simulation model in MATLAB/Simulink has been developed to verify the fault-tolerant concept of the proposed converter. A low-power laboratory prototype has been developed for the proposed topology. An exhaustive investigation has been performed in both simulation and real-time environments to validate the efficacy of the proposed topology. The simulation and experimental results of the proposed reconfigured fault-tolerant topology ensure the efficacy of the converter not only for uninterrupted power supply without any compromise in the output voltage but also to ensure proper charging and discharging modes of the energy storage device (ESD) involved in the bidirectional converter to meet the remotely operated dc microgrid specifications. A comparative study has been presented for the proposed reconfigured fault-tolerant multiport converters with the topology of existing literature to prove the superiority of the proposed topology.","PeriodicalId":161541,"journal":{"name":"2022 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117098858","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
Energy Storage Technologies for Hybrid Electric Vehicles 混合动力电动汽车的储能技术
2022 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES) Pub Date : 2022-12-14 DOI: 10.1109/PEDES56012.2022.10080184
Kiran H. Raut, A. Shendge, J. Chaudhari, Ravita Lamba
{"title":"Energy Storage Technologies for Hybrid Electric Vehicles","authors":"Kiran H. Raut, A. Shendge, J. Chaudhari, Ravita Lamba","doi":"10.1109/PEDES56012.2022.10080184","DOIUrl":"https://doi.org/10.1109/PEDES56012.2022.10080184","url":null,"abstract":"Electric vehicles (EVs) have recently received a lot of attention, as has the advancement of battery technology. Despite substantial advancements in battery technology, the existing batteries do not fully match the energy demands of EV power usage. One of the major concerns is non-monotonic energy consumption, which is accompanied by rapid variations during the battery discharge process. This is extremely damaging to the battery's electrochemical process. A viable approach is to combine the battery with a super capacitor, which is essentially an electrochemical cell with a similar design but with a greater rate capability and improved cyclic stability. In this arrangement, the super capacitor may supply the extra energy needed when the battery fails. Aside from the battery and super capacitor as independent elements, creating the architecture of the related hybrid system from an electrical engineering perspective is important. This article goes through the various energy storage technologies for hybrid electric vehicles as well as their advantages and disadvantages. It demonstrates that hybrid energy system technologies based on batteries and super capacitors are best suited for electric vehicle applications. In these paper lead acid battery is used as energy storage device in electric vehicle. In addition of super capacitor with battery, increases efficiency of electric vehicle and life of electric vehicle. This paper also examines the hybrid energy storage system's basic parallel design.","PeriodicalId":161541,"journal":{"name":"2022 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115276600","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
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