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2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition最新文献

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Significance of Battery Cell Equalization and Monitoring for Practical Commercialization of Plug-In Hybrid Electric Vehicles 电池均衡与监测对插电式混合动力汽车实际商业化的意义
2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition Pub Date : 2009-03-21 DOI: 10.1109/APEC.2009.4802699
P. Cassani, S. Williamson
{"title":"Significance of Battery Cell Equalization and Monitoring for Practical Commercialization of Plug-In Hybrid Electric Vehicles","authors":"P. Cassani, S. Williamson","doi":"10.1109/APEC.2009.4802699","DOIUrl":"https://doi.org/10.1109/APEC.2009.4802699","url":null,"abstract":"In order to increment gas mileage and meet CO2 emission targets, automakers have recently started making serious advances towards all-electric and plug-in hybrid electric vehicles (PHEV). Since the last decade, the main obstacle has remained the same: energy storage. In recent years, lithium batteries have been vastly explored, but have not yet met the energy requirements for PHEVs. The main issues are: cost, cycle life, calendar life, energy density, power density, and more recently, safety. These grave issues can be easily addressed using an extremely practical approach: a suitable battery cell voltage equalizer. The main aim of this paper is to demonstrate the role of an appropriate cell equalizer to reach the cost breakpoint of a PHEV. Lithium rechargeable cells have been studied thoughtfully, but they do not include the cost benefit analysis of using advanced electronics to protect and equalize the cells. The paper will also introduce lithium battery degradation effects, in order to demonstrate the practicality of battery cell voltage equalizers. Thereafter, the paper presents an economic comparison between a typical cell equalizer topology and the proposed topology. Finally, the economical feasibility of a power electronics intensive equalizer-managed PHEV storage system will be proven.","PeriodicalId":200366,"journal":{"name":"2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127580702","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: 49
Variable Dc-bus Control Strategy for an Active Voltage Quality Regulator 有源电压质量调节器的可变直流母线控制策略
2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition Pub Date : 2009-03-21 DOI: 10.1109/APEC.2009.4802875
G. Xiao, Zhiliang Hu, Lei Zhang, Zhaoan Wang
{"title":"Variable Dc-bus Control Strategy for an Active Voltage Quality Regulator","authors":"G. Xiao, Zhiliang Hu, Lei Zhang, Zhaoan Wang","doi":"10.1109/APEC.2009.4802875","DOIUrl":"https://doi.org/10.1109/APEC.2009.4802875","url":null,"abstract":"In order to avoid conventional topology's drawbacks, a new topology that the diode rectifier is replaced by the thyristor rectifier and the control strategy of the active voltage quality regulator with variable dc-bus voltage are proposed in this paper. This paper analyzes the circuit topology and control strategy in detail. Then losses and efficiency of the both circuit topologies are compared in order to show the virtue of the proposed circuit and its control method. Through comparative analysis, the proposed circuit topology is verified to be better than conventional topology. At last, the validity and effectiveness of the proposed control strategy are verified by the laboratory experimental results. At the same source voltage and load condition, the efficiency increases from 89% to 96% on a 2 kVA prototype.","PeriodicalId":200366,"journal":{"name":"2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition","volume":"231 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132603592","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 very fast control based on hysteresis of the Cout current with a frequency loop to operate at constant frequency 一种基于输出电流迟滞的快速控制，采用频率环在恒频下工作
2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition Pub Date : 2009-03-21 DOI: 10.1109/APEC.2009.4802753
S. C. Huerta, P. Alou, J. Oliver, Ó. García, J. Cobos, A. Abou-Alfotouh
{"title":"A very fast control based on hysteresis of the Cout current with a frequency loop to operate at constant frequency","authors":"S. C. Huerta, P. Alou, J. Oliver, Ó. García, J. Cobos, A. Abou-Alfotouh","doi":"10.1109/APEC.2009.4802753","DOIUrl":"https://doi.org/10.1109/APEC.2009.4802753","url":null,"abstract":"The combination of non-linear control and linear control proposed in [1] provides very fast transient response (voltage step from 1 V to 1.5 V in 2 ¿s). This non-linear control is based on hysteretic control of the Cout current. This system is very sensitive to effects like aging, temperature, input and output voltage variation, etc., that modify the switching frequency. This paper proposes a frequency loop to avoid the frequency variation and to adjust the switching frequency to the nominal value by changing the hysteretic band. The design and analysis of the nonlinear loop, the voltage loop and frequency loop are presented in detail with a design example. A 5 MHz buck converter is developed and experimental results validate the loops design, obtaining the same fast transient response (from 1.5 V to 2.5 V in 2 ¿s) but keeping constant the switching frequency in steady state.","PeriodicalId":200366,"journal":{"name":"2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129380185","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: 18
A Simple Resonant Voltage Divider 一个简单的谐振分压器
2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition Pub Date : 2009-03-21 DOI: 10.1109/APEC.2009.4802803
K. Hwu, Y. Yau
{"title":"A Simple Resonant Voltage Divider","authors":"K. Hwu, Y. Yau","doi":"10.1109/APEC.2009.4802803","DOIUrl":"https://doi.org/10.1109/APEC.2009.4802803","url":null,"abstract":"In this paper, a resonant voltage divider (RVD) is presented with the fixed switching frequency all over the load range, and used as the first stage of the bus converter. The proposed resonant voltage divider without any control loop embedded can reach very high efficiency from the light load to the rated load, especially for the light load. The detailed illustration of the RVD is provided along with some simulated results and experimental results to verify its effectiveness.","PeriodicalId":200366,"journal":{"name":"2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131054738","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 Dynamic Model of a PEM Fuel Cell System PEM燃料电池系统的动态模型
2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition Pub Date : 2009-03-21 DOI: 10.1109/APEC.2009.4802740
J.M. Lee, B. Cho
{"title":"A Dynamic Model of a PEM Fuel Cell System","authors":"J.M. Lee, B. Cho","doi":"10.1109/APEC.2009.4802740","DOIUrl":"https://doi.org/10.1109/APEC.2009.4802740","url":null,"abstract":"The steady states and dynamics of a fuel cell system are influenced by both operating conditions and the frequency characteristics of electrochemical reactions in a cell. A dynamic model of a practical fuel cell system, based on an analytical theory and empirical data, is proposed. The model consists of three parts, such as an open circuit voltage model including fuel flow and reaction in channels, an equivalent circuit model caused by voltage losses of electrochemical reactions in a cell, and an air compressor model (a fuel supply model among auxiliary systems in a fuel cell system). It will be useful to design the power system and control strategy and to analyze the system dynamics in a fuel cell power system. The model is verified by experiments of 1kW PEM FC system. The dynamics of its OCV(open circuit voltage) by fuel flow effect, and the frequency characteristics of reaction dynamics in a cell are verified by experiments.","PeriodicalId":200366,"journal":{"name":"2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132848227","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: 50
An Improved Direct Torque Control of Surface Permanent Magnet Synchronous Motor Drives Using Space Vector Modulation 基于空间矢量调制的表面永磁同步电机直接转矩控制
2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition Pub Date : 2009-03-21 DOI: 10.1109/APEC.2009.4802660
Bin Wang, Yue Wang, Zhaoan Wang, G. Xiao
{"title":"An Improved Direct Torque Control of Surface Permanent Magnet Synchronous Motor Drives Using Space Vector Modulation","authors":"Bin Wang, Yue Wang, Zhaoan Wang, G. Xiao","doi":"10.1109/APEC.2009.4802660","DOIUrl":"https://doi.org/10.1109/APEC.2009.4802660","url":null,"abstract":"In this paper, an improved direct torque control (DTC) scheme for surface permanent magnet synchronous machine (SPM) is investigated, which features in very low flux and torque ripple and almost fixed switching frequency. It is based on the deadbeat control of the flux and torque. Simulation and experimental results show that the flux and torque ripples are greatly reduced when compared with those of the basic DTC. With the new scheme, the quick dynamic torque response of the basic DTC is still retained. Fixed switching frequency at different operating conditions becomes possible by means of space vector modulation.","PeriodicalId":200366,"journal":{"name":"2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133337174","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
Improved Crowbar Control Strategy of DFIG Based Wind Turbines for Grid Fault Ride-Through 基于DFIG的风电机组故障穿越改进撬棍控制策略
2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition Pub Date : 2009-03-21 DOI: 10.1109/APEC.2009.4802937
Ling Peng, B. Francois, Yongdong Li
{"title":"Improved Crowbar Control Strategy of DFIG Based Wind Turbines for Grid Fault Ride-Through","authors":"Ling Peng, B. Francois, Yongdong Li","doi":"10.1109/APEC.2009.4802937","DOIUrl":"https://doi.org/10.1109/APEC.2009.4802937","url":null,"abstract":"Nowadays, the most widely used variable speed machine for wind turbine above 1MW is the doubly fed induction generator (DFIG). As the wind power penetration continues to increase, wind turbines are required to provide Low Voltage Ride-Through (LVRT) capability. Crowbars are commonly used to protect the power converters during voltage dips. Its main drawback is that the DFIG absorbs reactive power from the grid during grid faults. This paper proposes an improved control strategy for the crowbar protection to reduce its operation time. And a simple demagnetization method is adopted to decrease the oscillations of the transient current. Moreover, reactive power can be provided to assist the recovery of the grid voltage. Simulation results show the effectiveness of the proposed control schemes.","PeriodicalId":200366,"journal":{"name":"2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133157497","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: 101
Sensorless Current Sharing in Digitally Controlled Two-Phase Buck DC-DC Converters 数字控制两相降压DC-DC变换器的无传感器电流共享
2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition Pub Date : 2009-03-21 DOI: 10.1109/APEC.2009.4802635
Xu Zhang, L. Corradini, D. Maksimović
{"title":"Sensorless Current Sharing in Digitally Controlled Two-Phase Buck DC-DC Converters","authors":"Xu Zhang, L. Corradini, D. Maksimović","doi":"10.1109/APEC.2009.4802635","DOIUrl":"https://doi.org/10.1109/APEC.2009.4802635","url":null,"abstract":"This paper describes a current sharing technique for digitally controlled two-phase buck DC-DC converters where pulse width and resistance mismatches are digitally compensated to achieve approximately equal current sharing without sensing currents. Effects of various non-idealities on the current sharing performance are discussed and corresponding mitigation techniques are presented. An extension to converters with more than two phases is discussed. Experimental results are shown for a two-phase synchronous buck converter with 6V input voltage, and 1.3 V, 0 - 20 A output.","PeriodicalId":200366,"journal":{"name":"2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115388360","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: 32
A Simple Method for Comparative Study on the Thermal Performance of Light Emitting Diodes (LED) and Fluorescent Lamps 一种比较发光二极管(LED)和荧光灯热性能的简单方法
2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition Pub Date : 2009-03-21 DOI: 10.1109/APEC.2009.4802648
Y. Qin, D. Lin, S. Hui
{"title":"A Simple Method for Comparative Study on the Thermal Performance of Light Emitting Diodes (LED) and Fluorescent Lamps","authors":"Y. Qin, D. Lin, S. Hui","doi":"10.1109/APEC.2009.4802648","DOIUrl":"https://doi.org/10.1109/APEC.2009.4802648","url":null,"abstract":"A simple method is proposed to measure the heat dissipation of LEDs and fluorescent lamps in an open system which allows light energy to escape. Based on this method, a comparative study on the thermal and luminous performance of high-brightness LEDs and fluorescent lamps is presented. At rated power, T5 & T8 fluorescent lamps generate about 73% - 77% of their total power as heat, whilst three types of high-brightness LEDs dissipate about 87% to 90% of input power as heat. Heat dissipation is an important factor particularly for air-conditioned buildings when overall energy efficiency is considered. T5 fluorescent lamps perform better than some existing LEDs in terms of luminous efficacy and heat generation in this study.","PeriodicalId":200366,"journal":{"name":"2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition","volume":"218 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115520822","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: 48
Simple configurable digital compensator for DC-DC power converters 简单可配置的数字补偿器的DC-DC电源转换器
2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition Pub Date : 2009-03-21 DOI: 10.1109/APEC.2009.4802817
P. Zumel, C. Fernández, M. Sanz, A. Lázaro, A. Barrado
{"title":"Simple configurable digital compensator for DC-DC power converters","authors":"P. Zumel, C. Fernández, M. Sanz, A. Lázaro, A. Barrado","doi":"10.1109/APEC.2009.4802817","DOIUrl":"https://doi.org/10.1109/APEC.2009.4802817","url":null,"abstract":"In this work a very simple structure for the implementation of a digital reconfigurable compensator based on specific hardware is presented. Its main advantages are the easy way to change the transfer function by changing the clock frequency of the compensator and the reduction of the required digital resources. This approach can be used in systems implementing capabilities such as autotuning, adaptation to plant changes, etc, as it allows a simple reconfiguration of the compensator transfer function. The experiments show the feasibility of the presented alternative.","PeriodicalId":200366,"journal":{"name":"2009 Twenty-Fourth Annual IEEE Applied Power Electronics Conference and Exposition","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115710360","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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