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2018 IEEE 4th Southern Power Electronics Conference (SPEC)最新文献

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Dual Port Impedance Converter for PV – Battery fed Remote Telecom Towers 用于光伏电池供电的远程电信塔的双端口阻抗转换器
2018 IEEE 4th Southern Power Electronics Conference (SPEC) Pub Date : 2018-12-01 DOI: 10.1109/SPEC.2018.8636089
Aditya Narula, V. Verma
{"title":"Dual Port Impedance Converter for PV – Battery fed Remote Telecom Towers","authors":"Aditya Narula, V. Verma","doi":"10.1109/SPEC.2018.8636089","DOIUrl":"https://doi.org/10.1109/SPEC.2018.8636089","url":null,"abstract":"Base Transceiver Station (BTS) installed in difficult terrains with photovoltaics support require battery backup to provide a suitable and uninterrupted power solution. This paper proposes a multiport impedance source converter interfacing photovoltaic panel on unidirectional port and battery stacks at bidirectional port to feed power to the telecommunication DC microgrid through a single unit of converter. The proposed topology employs continuous input modified T type impedance networks capable of boosting in normal operating conditions and providing extra boost during shoot through conditions exhibiting wide operating range for PV applications. Modular and power dense architecture allows single control algorithm to govern the converter operation under normal and intermittent conditions for both extraction of power from PV and controlling of quantum of charging/ discharging current into / from the battery. The converter response is simulated under MATLAB environment and analyzed under charging discharging conditions of battery under intermittent operation of photovoltaic system including partial shading to affirm the uninterruptable support to telecommunication tower.","PeriodicalId":335893,"journal":{"name":"2018 IEEE 4th Southern Power Electronics Conference (SPEC)","volume":"115 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":"117064663","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
Power Stabilization Based on Double Energized Transmitting Coils in Dynamic Wireless Charging System for Inspection Robot 基于双励磁发射线圈的巡检机器人动态无线充电系统功率稳定
2018 IEEE 4th Southern Power Electronics Conference (SPEC) Pub Date : 2018-12-01 DOI: 10.1109/SPEC.2018.8635847
Han Liu, L. Tan, Xueliang Huang, D. Czarkowski
{"title":"Power Stabilization Based on Double Energized Transmitting Coils in Dynamic Wireless Charging System for Inspection Robot","authors":"Han Liu, L. Tan, Xueliang Huang, D. Czarkowski","doi":"10.1109/SPEC.2018.8635847","DOIUrl":"https://doi.org/10.1109/SPEC.2018.8635847","url":null,"abstract":"In a dynamic wireless charging system with short segmented transmitting coils, the operation mode of a single energized transmitting coil causes large power drop when the receiving coil moves to the central position between two transmitting coils. Power stabilization based on double energized transmitting coils is proposed to solve this issue. Firstly, the dynamic wireless charging system for inspection robots based on series short segmented transmitting coils and LCC compensation circuit in transmitting side is presented. Secondly, the uniform circuit model of wireless power transfer systems with single transmitting coil or double transmitting coils is developed. The system characteristics of a single energized transmitting coil and double energized transmitting coils varying with the position of the receiving coil are analyzed comparatively in one cycle of switching control of the segmented transmitting coils. According to the comparative analysis, when the receiving coil is at the central position between the two transmitting coils, the receiving power is stabilized by using the double energized transmitting coil structure. The relevant experiments are designed to verify the theoretical research.","PeriodicalId":335893,"journal":{"name":"2018 IEEE 4th Southern Power Electronics Conference (SPEC)","volume":"4 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":"117121794","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
Low-Voltage Ride-Through Techniques for Two-Stage Photovoltaic System under Unbalanced Grid Voltage Sag Conditions 电网电压暂降不平衡条件下两级光伏系统的低压穿越技术
2018 IEEE 4th Southern Power Electronics Conference (SPEC) Pub Date : 2018-12-01 DOI: 10.1109/SPEC.2018.8636016
Xiangyang Lin, Yang Han, Ping Yang, Congling Wang, Jingqi Xiong
{"title":"Low-Voltage Ride-Through Techniques for Two-Stage Photovoltaic System under Unbalanced Grid Voltage Sag Conditions","authors":"Xiangyang Lin, Yang Han, Ping Yang, Congling Wang, Jingqi Xiong","doi":"10.1109/SPEC.2018.8636016","DOIUrl":"https://doi.org/10.1109/SPEC.2018.8636016","url":null,"abstract":"This paper proposes a low voltage ride through (LVRT) control strategy for two-stage photovoltaic power generation system (PVPGS) during unbalanced grid faults, where the two-stage PVPGS is composed of PV arrays, the frond-end Boost converter, and the rear-end three-phase inverter. Discharging circuit is added at the dc-link of the twostage PVPGS, and the positive sequence and negative sequence vector current control in the double synchronous reference frame (DSRF) is employed for rear-end three-phase grid-connected inverter. The reference current calculation method considering current limitation is introduced, and the dual-loop control in DSRF is utilized for rear-end inverter, where the outer voltage loop is used for maintaining dc-link voltage, the positive sequence inner current loop is applied to improve dynamic response for current tracking, and the negative sequence inner current loop is designed for eliminating current overshoot. Moreover, a separate DC voltage loop is adopted in discharging circuit for the LVRT operation. A 500kVA twostage PVPGS model is built in the PSCAD/EMTDC platform, the performance of proposed control strategy is evaluated by simulations under asymmetric conditions including single-phase and two-phase ground fault, and two-phase short-circuit fault.","PeriodicalId":335893,"journal":{"name":"2018 IEEE 4th Southern Power Electronics Conference (SPEC)","volume":"94 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":"130316382","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
Analysis of Load Balancing Limits for Cascaded Rectifiers 级联整流器负载均衡限值分析
2018 IEEE 4th Southern Power Electronics Conference (SPEC) Pub Date : 2018-12-01 DOI: 10.1109/SPEC.2018.8635861
N. Jiao, Shunliang Wang, Tianqi Liu
{"title":"Analysis of Load Balancing Limits for Cascaded Rectifiers","authors":"N. Jiao, Shunliang Wang, Tianqi Liu","doi":"10.1109/SPEC.2018.8635861","DOIUrl":"https://doi.org/10.1109/SPEC.2018.8635861","url":null,"abstract":"Cascaded H-bridge rectifiers have recently been increasing applied due to its lots of advantages. However, the load imbalance of the cascaded H-bridge rectifier will induce the DC-link capacitor voltages to be unbalanced, which will cause the semiconductor device to withstand overvoltage and even cause the dc-link capacitor to breakdown and instability of the converter system. Quantitative assessment the load balancing limits is significant for operating stably and system parameter design. This paper presents the working principle, control and modulation methods of cascaded H-bridge rectifier. Based on power balance and modulation principle, a calculation method of the load balancing limits for two-cell cascaded H-bridge rectifiers is proposed. Simulation results are given to validate the correctness of the proposed calculation method. The results show if the load imbalance exceeds the balance control range, additional current harmonics will be generated in AC side.","PeriodicalId":335893,"journal":{"name":"2018 IEEE 4th Southern Power Electronics Conference (SPEC)","volume":"49 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":"125450726","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
Stability Analysis of Control System Based on Linearized Model of Mutually Connected TAB Converters 基于相互连接TAB转换器线性化模型的控制系统稳定性分析
2018 IEEE 4th Southern Power Electronics Conference (SPEC) Pub Date : 2018-12-01 DOI: 10.1109/SPEC.2018.8635995
Shota Okutani, Y. Kado, Pin-Yu Huang, J. Arai
{"title":"Stability Analysis of Control System Based on Linearized Model of Mutually Connected TAB Converters","authors":"Shota Okutani, Y. Kado, Pin-Yu Huang, J. Arai","doi":"10.1109/SPEC.2018.8635995","DOIUrl":"https://doi.org/10.1109/SPEC.2018.8635995","url":null,"abstract":"An autonomous dc microgrid system has been developed that consists of triple active bridge (TAB) converters as power routing units. To achieve high-speed response of the system to power demand and short-circuit faults, high stability of voltages at all connecting points between TAB converters, and high operational stability of the entire system, a model of mutually connected TAB converters and a control system for the converters must be developed. In this paper, a linearized model of mutually connected TAB converters is proposed and used to analyze the operational stability of the control system. Next, an experiment using prototype TAB converters was conducted to validate the stability analysis. When the power flow pattern among ports of the TAB converters changed in step, the power value of each port converged to the desired power value. Therefore, we conclude that the TAB converters are stably operated by using the developed control system even when TAB converters are connected in series.","PeriodicalId":335893,"journal":{"name":"2018 IEEE 4th Southern Power Electronics Conference (SPEC)","volume":"33 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":"114996960","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
A Computationally-Efficient Electrochemical-Thermal Model for Small-Format Cylindrical Lithium Ion Batteries 小型圆柱形锂离子电池的高效电化学-热计算模型
2018 IEEE 4th Southern Power Electronics Conference (SPEC) Pub Date : 2018-12-01 DOI: 10.1109/SPEC.2018.8636033
N. Tran, M. Vilathgamuwa, T. Farrell, S. Choi, Yang Li, Joseph Teague
{"title":"A Computationally-Efficient Electrochemical-Thermal Model for Small-Format Cylindrical Lithium Ion Batteries","authors":"N. Tran, M. Vilathgamuwa, T. Farrell, S. Choi, Yang Li, Joseph Teague","doi":"10.1109/SPEC.2018.8636033","DOIUrl":"https://doi.org/10.1109/SPEC.2018.8636033","url":null,"abstract":"A computationally efficient reduced-order electrochemical-thermal model for small-format cylindrical lithium ion cells is developed, by applying the Padé approximation technique to the Pseudo-2-Dimensional battery model. Whence the amount of the total heat produced in the battery is obtained which in turn allows the evolution of the cell temperature is computed based on a simplified thermal model. The proposed model is computationally efficient whilst its accuracy compares favorably with those obtained using the 1-dimensional radial electrochemical-thermodynamic model implemented in Comsol Multiphysics.","PeriodicalId":335893,"journal":{"name":"2018 IEEE 4th Southern Power Electronics Conference (SPEC)","volume":"81 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":"116346766","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
Open and Short Circuit Fault detection in Alternators using the rectified DC output voltage 利用整流直流输出电压的交流发电机开路和短路故障检测
2018 IEEE 4th Southern Power Electronics Conference (SPEC) Pub Date : 2018-12-01 DOI: 10.1109/SPEC.2018.8635983
Russell Sabir, S. Hartmann, C. Gühmann
{"title":"Open and Short Circuit Fault detection in Alternators using the rectified DC output voltage","authors":"Russell Sabir, S. Hartmann, C. Gühmann","doi":"10.1109/SPEC.2018.8635983","DOIUrl":"https://doi.org/10.1109/SPEC.2018.8635983","url":null,"abstract":"The alternator in automotive systems with built-in rectifier can be subjected to various open circuit and short circuit faults. These faults result in harmonics in the rectified output voltage from the alternator. Most of the methods for fault diagnosis in AC machines and its power electronics require measurements using expensive sensors for current, temperature, torque etc., other methods have high computational requirements and therefore are not suitable for real time applications. The paper discusses an approach to detect the electrical faults by identifying the fault harmonics in the rectified output voltage of the alternator. In the paper, the effectiveness of this technique is demonstrated in fault detection and its severity in both simulation and practical measurements.","PeriodicalId":335893,"journal":{"name":"2018 IEEE 4th Southern Power Electronics Conference (SPEC)","volume":"72 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":"123567246","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
A Soft Reclosing Model for Hybrid DC Circuit Breaker in VSC-MTDC System VSC-MTDC混合直流断路器软重合闸模型
2018 IEEE 4th Southern Power Electronics Conference (SPEC) Pub Date : 2018-12-01 DOI: 10.1109/SPEC.2018.8636043
Ji Shu, Shunliang Wang, Tianqi Liu
{"title":"A Soft Reclosing Model for Hybrid DC Circuit Breaker in VSC-MTDC System","authors":"Ji Shu, Shunliang Wang, Tianqi Liu","doi":"10.1109/SPEC.2018.8636043","DOIUrl":"https://doi.org/10.1109/SPEC.2018.8636043","url":null,"abstract":"Using hybrid DC circuit breakers (HDCCB) to isolate faults in voltage source converter based multiterminal high voltage direct current (VSC-MTDC) system is a common fault protection solution. Many temporary faults would occur due to the use of long overhead lines, thus it's required to reclose HDCCB at the faulty line after fault is isolated and cleared. Over-current limiting is very important for the security and reliability of DC system during the reclosing process. A soft reclosing model (SRM) for HDCCB to limit the reclosing over-current is proposed in this paper. Operation procedure and detailed mathematical analysis are carried out to design circuit parameter of SRM. The proposed model is evaluated in a 5 terminal VSC-MTDC system. Compared to traditional reclosing method, this proposal can effectively limit the reclosing over-current to reduce the impact when reclosing on fault in DC system, thus the security and reliability of DC system can be improved.","PeriodicalId":335893,"journal":{"name":"2018 IEEE 4th Southern Power Electronics Conference (SPEC)","volume":"13 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":"116820776","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: 10
Dimensioning and Comparison of a Novel Power Converter Topology by Empirical Semiconductor Models 基于经验半导体模型的新型功率变换器拓扑尺寸及比较
2018 IEEE 4th Southern Power Electronics Conference (SPEC) Pub Date : 2018-12-01 DOI: 10.1109/SPEC.2018.8636061
Christian Axtmann, J. Kolb, M. Braun
{"title":"Dimensioning and Comparison of a Novel Power Converter Topology by Empirical Semiconductor Models","authors":"Christian Axtmann, J. Kolb, M. Braun","doi":"10.1109/SPEC.2018.8636061","DOIUrl":"https://doi.org/10.1109/SPEC.2018.8636061","url":null,"abstract":"A widely known problem is to compare different power converter topologies by means of semiconductor effort and thus cost. This is often additionally hindered by a limited amount of individual, existing semiconductors. This paper presents an approach in terms of semiconductor models and a design algorithm. In a first step, area-specific semiconductor models are derived by regression analysis of datasheet parameters of existing devices. This is done for both MOSFETs and IGBTs. In a second step, a design algorithm is presented and two power converter topologies for electric traction applications are compared.","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":"128379220","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
Performance Analysis of a Single-phase GaN-based 3L-ANPC Inverter for Photovoltaic Applications 光伏用单相氮化镓3L-ANPC逆变器性能分析
2018 IEEE 4th Southern Power Electronics Conference (SPEC) Pub Date : 2018-12-01 DOI: 10.1109/SPEC.2018.8635942
Mauro Valente, F. Iannuzzo, Yongheng Yang, E. Gurpinar
{"title":"Performance Analysis of a Single-phase GaN-based 3L-ANPC Inverter for Photovoltaic Applications","authors":"Mauro Valente, F. Iannuzzo, Yongheng Yang, E. Gurpinar","doi":"10.1109/SPEC.2018.8635942","DOIUrl":"https://doi.org/10.1109/SPEC.2018.8635942","url":null,"abstract":"Nowadays, the power electronics converter design is challenged with a request of high efficiency and compactness for various applications. To tackle this, the research community and the industry have almost fully exploited the silicon technology, leading to the development of new power transistors. The Gallium-Nitride (GaN) HEMTs can be promising power devices to replace the traditional power devices. Therefore, the performances of GaN-based converters should be assessed to validate the effectiveness in terms of efficiency and power density. Moreover, among the available converter topologies, the performance of the three-level Neutral Point Clamped (NPC) family can be enhanced with the GaN HEMTs. In light of the above, in this paper, the performance of a GaN-based three-level Active NPC (3L-ANPC) converter is evaluated in terms of power losses, volume impact of passive components, and output distortions. Simulations and experiments have been performed.","PeriodicalId":335893,"journal":{"name":"2018 IEEE 4th Southern Power Electronics Conference (SPEC)","volume":"34 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":"129253023","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
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