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A Class E2 Inverter-Rectifier-Based Bidirectional Wireless Power Transfer System 一种基于E2级逆变整流的双向无线电力传输系统
2018 IEEE 4th Southern Power Electronics Conference (SPEC) Pub Date : 2018-12-01 DOI: 10.1109/SPEC.2018.8635870
Kerui Li, Siew-Chong Tan
{"title":"A Class E2 Inverter-Rectifier-Based Bidirectional Wireless Power Transfer System","authors":"Kerui Li, Siew-Chong Tan","doi":"10.1109/SPEC.2018.8635870","DOIUrl":"https://doi.org/10.1109/SPEC.2018.8635870","url":null,"abstract":"In this paper, the use of class $mathrm{E}^{2}$ inverter-rectifier (hereon known as $mathrm{E}^{2}$ converter) system with phase-shift control for bidirectional wireless power transfer applications, is discussed. The system comprises a class E inverter, an active class E rectifier, and a set of wireless transmitter-receiver coils with series-series compensation. The power flow control of the system is achieved via the control of the phase-shift ratio between the driving signal of the inverter and that of the rectifier. To ensure zero voltage switching (ZVS) operation of the converter and precise power flow control over the full load range, the system is designed to be load-independent such that the voltage waveforms of the converter are relatively similar (slight change) regardless of the applied load. The operating principle, time-domain model, and design consideration of the system are elaborated in the paper. Simulation and experimental results are provided as preliminary verification of the derived time-domain model and the features of the system: load-independent output/input voltage waveform of the class E inverter and active class E rectifier over the full load range, ZVS operation over the full load range, providence of bidirectional and sustainable power flow control and accurate output regulation.","PeriodicalId":335893,"journal":{"name":"2018 IEEE 4th Southern Power Electronics Conference (SPEC)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126248863","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: 6
Modelling and Simulation of DC microgrid 直流微电网的建模与仿真
2018 IEEE 4th Southern Power Electronics Conference (SPEC) Pub Date : 2018-12-01 DOI: 10.1109/SPEC.2018.8636004
Song HuiHuan Zacchaeus, Wesley Poh Qi Tong, R. T. Naayagi
{"title":"Modelling and Simulation of DC microgrid","authors":"Song HuiHuan Zacchaeus, Wesley Poh Qi Tong, R. T. Naayagi","doi":"10.1109/SPEC.2018.8636004","DOIUrl":"https://doi.org/10.1109/SPEC.2018.8636004","url":null,"abstract":"DC microgrids have permeated the energy market in recent years due to the achievement of higher efficiency outputs during power distribution as compared to AC microgrids. Current DC microgrid technology relies on renewable energy sources (e.g. photovoltaic panels, wind turbines) and sub-systems to attain high efficiency while facilitating maximum power point tracking (MPPT) among charge controllers. The key component of a microgrid system is its energy storage system, which assists in mitigating power intermittency due to the deployment of renewables. This paper emphasizes on energy management and control of a DC microgrid system, whereby a simulation model of the proposed DC microgrid is developed in MATLAB/Simulink environment for electrification of a small town. The acquired simulation results have demonstrated feasibility of the proposed DC microgrid during operations.","PeriodicalId":335893,"journal":{"name":"2018 IEEE 4th Southern Power Electronics Conference (SPEC)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125502202","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: 4
Discussion of Single-Stage Isolated Unidirectional AC-DC On-Board Battery Charger for Electric Vehicle 电动汽车单级隔离单向交直流车载电池充电器的探讨
2018 IEEE 4th Southern Power Electronics Conference (SPEC) Pub Date : 2018-12-01 DOI: 10.1109/SPEC.2018.8635919
M. Nassary, M. Orabi, M. Ghoneima
{"title":"Discussion of Single-Stage Isolated Unidirectional AC-DC On-Board Battery Charger for Electric Vehicle","authors":"M. Nassary, M. Orabi, M. Ghoneima","doi":"10.1109/SPEC.2018.8635919","DOIUrl":"https://doi.org/10.1109/SPEC.2018.8635919","url":null,"abstract":"Nowadays, plug-in electric vehicles (PEVs) have been given wide concerns all over the world due to their merits over the fuel vehicles. Electric vehicle (EV) technology is equipped with a high efficient on-board battery charger (OBC). The battery charger converters are classified into three main types; integrated converter with the machine, two-stage and single-stage structure. These three types of OBC are usually compromised according to power factor corrector (PFC), cost, efficiency and lifetime. In this paper, a recent survey about the various available single-stage isolated unidirectional OBC systems are compared regarding to the previous four metrics. Moreover, hardware limitation, performance, and the utilization of the semiconductors are considered in this review. Finally, those topologies are summarized considering various performance criteria.","PeriodicalId":335893,"journal":{"name":"2018 IEEE 4th Southern Power Electronics Conference (SPEC)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121059735","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: 16
Small-Signal Stability Analysis of the Standalone Single-Phase Parallel Inverter with BPF-based Droop Control Scheme 基于bpf下垂控制方案的独立单相并联逆变器的小信号稳定性分析
2018 IEEE 4th Southern Power Electronics Conference (SPEC) Pub Date : 2018-12-01 DOI: 10.1109/SPEC.2018.8636035
Mengling Yang, Congling Wang, Yang Han, Jingqi Xiong, Ping Yang
{"title":"Small-Signal Stability Analysis of the Standalone Single-Phase Parallel Inverter with BPF-based Droop Control Scheme","authors":"Mengling Yang, Congling Wang, Yang Han, Jingqi Xiong, Ping Yang","doi":"10.1109/SPEC.2018.8636035","DOIUrl":"https://doi.org/10.1109/SPEC.2018.8636035","url":null,"abstract":"As a supplementary part of the droop control, the secondary control is widely utilized in the control of the microgrid, however, its reliability is susceptible due to the possible communication delay and data drop-out. In our recent work, the steady-state amplitude and frequency deviation of voltage can be restored by using the band-pass filter (BPF)-based improved droop control, without any communication links and additional control loop. In this paper, the BPF-based improved droop control is first employed for the two parallel-connected islanded inverters, and its small-signal model is derived in this case. Furthermore, the impact of the active power droop coefficient, the cutoff frequency of high-pass filter and the load impedance on system stability and dynamic performance are further analyzed based on the established model. Finally, the stability and dynamic response performance of the system under different control parameters is compared by simulation in PLECS software, which validates the effectiveness of this method in single-phase inverter system and the derived small-signal model.","PeriodicalId":335893,"journal":{"name":"2018 IEEE 4th Southern Power Electronics Conference (SPEC)","volume":"215 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127606557","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: 7
Control Strategy for Low Voltage Ride Through (LVRT) Operation of Two-Stage Photovoltaic Power Generation System 两级光伏发电系统低压穿越运行控制策略
2018 IEEE 4th Southern Power Electronics Conference (SPEC) Pub Date : 2018-12-01 DOI: 10.1109/SPEC.2018.8636020
Lihua Li, Hong Zhou, F. Luo, Xiangyang Lin, Yang Han
{"title":"Control Strategy for Low Voltage Ride Through (LVRT) Operation of Two-Stage Photovoltaic Power Generation System","authors":"Lihua Li, Hong Zhou, F. Luo, Xiangyang Lin, Yang Han","doi":"10.1109/SPEC.2018.8636020","DOIUrl":"https://doi.org/10.1109/SPEC.2018.8636020","url":null,"abstract":"This paper presents an improved low voltage ride through (LVRT) control strategy for the two-stage photovoltaic (PV) power generation system by adding discharging circuit at the DC-link of the inverter and modifying the active and reactive current reference to the DC/AC inverter when grid voltage sag occurs. The 500kVA two-stage photovoltaic power system model is built in PSCAD/EMTDC platform, which consists of PV arrays, Boost converter and 3-phase DC/AC inverter. The maximum power point tracking (MPPT) control scheme is adopted in the Boost converter, and the dual-loop control structure is utilized for the DC/AC inverter, where the outer voltage loop is used for maintaining DC-link voltage, and the inner current loop is used for improving dynamic response for current tracking. Also, a separate DC voltage loop is adopted in the discharging circuit for the LVRT operation. Simulation in PSCAD/EMTDC platform verifies the validity of the proposed control strategies under symmetrical voltage sag conditions","PeriodicalId":335893,"journal":{"name":"2018 IEEE 4th Southern Power Electronics Conference (SPEC)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114305716","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: 4
PMSM PI Current Controller Tuning Using Structurally Constrain LQR LMI Criteria for MIMO Plants 基于结构约束LQR LMI准则的PMSM PI电流控制器整定
2018 IEEE 4th Southern Power Electronics Conference (SPEC) Pub Date : 2018-12-01 DOI: 10.1109/SPEC.2018.8635836
L. Pohl, Ondrej Bartik
{"title":"PMSM PI Current Controller Tuning Using Structurally Constrain LQR LMI Criteria for MIMO Plants","authors":"L. Pohl, Ondrej Bartik","doi":"10.1109/SPEC.2018.8635836","DOIUrl":"https://doi.org/10.1109/SPEC.2018.8635836","url":null,"abstract":"In this paper the convex optimization technique is proposed for parameter tuning of a PI controller. Presented non-iterative two step procedure is able to optimize the coefficients of a structured output feedback matrix using the LQR cost function. It is also shown that the matrix coefficients can be linked to PI controller parameters simply by extending the state space model of the plant. The capability of this method to optimize controllers for MIMO plants is demonstrated on current control of the real PMSM.","PeriodicalId":335893,"journal":{"name":"2018 IEEE 4th Southern Power Electronics Conference (SPEC)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133662318","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
Performance Enhancement of three-phase Unbalanced Distribution Network using DER 用DER增强三相不平衡配电网的性能
2018 IEEE 4th Southern Power Electronics Conference (SPEC) Pub Date : 2018-12-01 DOI: 10.1109/SPEC.2018.8635953
P. Shettigar, Y. Malviya, A. Surjagade, V. Pal, A. Sheikh, S. Bhil
{"title":"Performance Enhancement of three-phase Unbalanced Distribution Network using DER","authors":"P. Shettigar, Y. Malviya, A. Surjagade, V. Pal, A. Sheikh, S. Bhil","doi":"10.1109/SPEC.2018.8635953","DOIUrl":"https://doi.org/10.1109/SPEC.2018.8635953","url":null,"abstract":"The future grid encourages distributed energy resources (DER) integration with main power grid to mitigate with the problems of demand-supply mismatch. However for real-time monitoring of voltage profile and line flows it is necessary to continuously run the load flow. However, distribution network (DN) suffers from non-convergence of conventional load flow method (Newton-Raphson) because of high WX ratio. This has motivated to develop a better load flow solution method which will help to address the above mentioned issues with proper allocation of DER for performance enhancement of three-phase unbalance DN. The paper proposes modified forward/backward sweep (FBS) method which helps to identify the weak nodes in network violating the given operating constraints and recommends to implement DERs on such weak nodes to improve voltage profile and reduce stress on power system network. The two-fold contribution of the paper in development of method and performance enhancement is validated using standard IEEE 34 bus which confirms the effectiveness of DERs insertion for three-phase unbalance DN.","PeriodicalId":335893,"journal":{"name":"2018 IEEE 4th Southern Power Electronics Conference (SPEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123576445","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
Impedance-Based Modelling Method for Length-Scalable Long Transmission Cable for Stability Analysis of Grid-Connected Inverter 并网逆变器稳定性分析中基于长度可伸缩的长传输电缆阻抗建模方法
2018 IEEE 4th Southern Power Electronics Conference (SPEC) Pub Date : 2018-12-01 DOI: 10.1109/SPEC.2018.8635872
Weihua Zhou, Yanbo Wang, Zhe Chen
{"title":"Impedance-Based Modelling Method for Length-Scalable Long Transmission Cable for Stability Analysis of Grid-Connected Inverter","authors":"Weihua Zhou, Yanbo Wang, Zhe Chen","doi":"10.1109/SPEC.2018.8635872","DOIUrl":"https://doi.org/10.1109/SPEC.2018.8635872","url":null,"abstract":"This paper presents an impedance-based modelling method for length-scalable long transmission cable (LTC), which is able to assess influence of LTC on stability of grid-connected inverter (GCI). Electrical parameters of power cable in per-unit-length (p.u.l.) are first extracted from the measured terminal short-circuited and open-circuited admittances. Then, the terminal admittance of power cable in different length can be derived on the basis of the obtained p.u.l. parameters. Finally, a decoupled two-port circuit model is established for the LTC using the derived terminal admittance. Simulation results are given to validate effectiveness of the proposed impedance-based modelling method for LTC. The proposed impedance-based modelling method is able to avoid repetitive terminal impedance measurement. Also, the proposed model is able to support impedance-based stability criterion for GCI with length-scalable LTC.","PeriodicalId":335893,"journal":{"name":"2018 IEEE 4th Southern Power Electronics Conference (SPEC)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124914544","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: 5
optimization of T-type compensation network for a certain power fluctuation tolerance of the dynamic wireless power transmission 在一定功率波动容限下的动态无线电力传输的t型补偿网络优化
2018 IEEE 4th Southern Power Electronics Conference (SPEC) Pub Date : 2018-12-01 DOI: 10.1109/SPEC.2018.8635840
Shufan Li, Lifang Wang, Yanjie Guo, Chengxuan Tao
{"title":"optimization of T-type compensation network for a certain power fluctuation tolerance of the dynamic wireless power transmission","authors":"Shufan Li, Lifang Wang, Yanjie Guo, Chengxuan Tao","doi":"10.1109/SPEC.2018.8635840","DOIUrl":"https://doi.org/10.1109/SPEC.2018.8635840","url":null,"abstract":"Dynamic wireless power transmission(DWPT) technology is recently proposed as a new solution for the anxiety of battery capacity limit of electric vehicles. To maintain the stable power transmission process of a DWPT system, the power fluctuation caused by movement of electric vehicles(EVs) should be restrained. This paper proposed an optimized T-type network designing method to restrain the power fluctuation for a certain tolerance.","PeriodicalId":335893,"journal":{"name":"2018 IEEE 4th Southern Power Electronics Conference (SPEC)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124774708","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: 3
Analysis and Design of a Novel High Step-Down DC-DC Converter for Battery Applications 电池用新型高降压DC-DC变换器的分析与设计
2018 IEEE 4th Southern Power Electronics Conference (SPEC) Pub Date : 2018-12-01 DOI: 10.1109/SPEC.2018.8635864
Zhong-Rong Lin, N. A. Dung, H. Chiu, Yu-Chen Liu, J. Lai, Yu-Chen Chang
{"title":"Analysis and Design of a Novel High Step-Down DC-DC Converter for Battery Applications","authors":"Zhong-Rong Lin, N. A. Dung, H. Chiu, Yu-Chen Liu, J. Lai, Yu-Chen Chang","doi":"10.1109/SPEC.2018.8635864","DOIUrl":"https://doi.org/10.1109/SPEC.2018.8635864","url":null,"abstract":"In this paper, the low voltage stress of switches, high voltage gain DC-DC converter is proposed. The operating principle of the converter is similar to that of the conventional buck converter. Therefore, the proposed converter can be operated in the discontinuous conduction mode, continuous conduction mode, depending on the design. Moreover, the controller is also similar to that of the traditional buck converter, results in the simple controller. Furthermore, the voltage stress of every switch is reduced significantly compared with the conventional converter. Therefore, the use of the low voltage rating switches reduces the losses significantly. A 200W converter prototype is successfully built and tested to verify the feasibility of the proposed converter.","PeriodicalId":335893,"journal":{"name":"2018 IEEE 4th Southern Power Electronics Conference (SPEC)","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129806830","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: 2
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