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Digital implementation of driving scheme for synchronous rectification in LLC resonant converter LLC谐振变换器同步整流驱动方案的数字化实现
2010 IEEE Energy Conversion Congress and Exposition Pub Date : 2010-11-01 DOI: 10.1109/ECCE.2010.5618033
Weiyi Feng, Daocheng Huang, P. Mattavelli, D. Fu, F. Lee
{"title":"Digital implementation of driving scheme for synchronous rectification in LLC resonant converter","authors":"Weiyi Feng, Daocheng Huang, P. Mattavelli, D. Fu, F. Lee","doi":"10.1109/ECCE.2010.5618033","DOIUrl":"https://doi.org/10.1109/ECCE.2010.5618033","url":null,"abstract":"A digital implementation of synchronous rectification (SR) driving scheme for LLC resonant converter is proposed in this paper. Compared with analog ones, digital implementation enables more intelligent and precise SR control, improving converter efficiency. In the proposed SR driving scheme, the drain to source voltage of synchronous rectifier on the secondary side is sensed, so that the paralleled body diode conduction is detected. The SR turn-off time is digitally tuned based on the body diode conduction information. For rapid prototyping purposes, the digital tuning system is realized in Cyclone III FPGA.","PeriodicalId":161915,"journal":{"name":"2010 IEEE Energy Conversion Congress and Exposition","volume":"245 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131822272","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: 40
A novel single phase synchronization method for D-FACTS controller based on symmetrical components synthesis 一种基于对称分量合成的D-FACTS控制器单相同步方法
2010 IEEE Energy Conversion Congress and Exposition Pub Date : 2010-11-01 DOI: 10.1109/ECCE.2010.5618239
Ming Li, Yue Wang, Xiong Fang, Wanjun Wang Ke Lei, Zhaoan Wang, Jinjun Liu, Liu Jinjun
{"title":"A novel single phase synchronization method for D-FACTS controller based on symmetrical components synthesis","authors":"Ming Li, Yue Wang, Xiong Fang, Wanjun Wang Ke Lei, Zhaoan Wang, Jinjun Liu, Liu Jinjun","doi":"10.1109/ECCE.2010.5618239","DOIUrl":"https://doi.org/10.1109/ECCE.2010.5618239","url":null,"abstract":"Power Electronics (PE) converter based applications are becoming famous. For the cost, complexity and reliability points of view, distribution solutions are more easily acceptable. In the novel D-FACTS, single phase synchronization plays an important role in the distributed controller. A novel DDPARK-PLL is proposed which doesn't focus on orthogonal signal generation. The single phase input signal is considered as a three-phase signal whose two phases are set to zero constantly. The concept of positive sequence and negative sequence PARK transformation is promoted into single phase signal analysis. Self-decoupling is utilized instead of cross-decoupling in order to simplify the structure. Steady-state simulation/experimental results all verified the method. Transient simulation/experimental results show the robust of the proposed PLL.","PeriodicalId":161915,"journal":{"name":"2010 IEEE Energy Conversion Congress and Exposition","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132619710","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
State space decoupling control design methodology for switching converters 开关变换器的状态空间解耦控制设计方法
2010 IEEE Energy Conversion Congress and Exposition Pub Date : 2010-11-01 DOI: 10.18618/REP.2012.1.456465
E. Gomes, L. A. de S. Ribeiro, J. V. M. Caracas, S. Catunda, R. Lorenz
{"title":"State space decoupling control design methodology for switching converters","authors":"E. Gomes, L. A. de S. Ribeiro, J. V. M. Caracas, S. Catunda, R. Lorenz","doi":"10.18618/REP.2012.1.456465","DOIUrl":"https://doi.org/10.18618/REP.2012.1.456465","url":null,"abstract":"This paper derives a new approach for analyzing dc-dc converters for feedback control design. The control-to-output voltage transfer function of the converters, usually predicted by averaging models, and the classical feedback control techniques are replaced by the state space average state block diagram analysis. These state block diagrams are obtained for state space averaging matrixes of the converters combined with their continuous conduction mode differential equations. This decoupling technique yields first order control transfer functions allowing easier synthesis of controllers. The disturbance rejection properties of the controller are analyzed and improved by disturbance input decoupling. The technique is applied to buck converters, and the controllers demonstrate good transient response compared to classical voltage controllers. The structure is easy implement with relevant applications in integrated circuit manufacturing and general industrial environments.","PeriodicalId":161915,"journal":{"name":"2010 IEEE Energy Conversion Congress and Exposition","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128932135","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
Real-time dynamic thermal rating evaluation of overhead power lines based on online adaptation of Echo State Networks 基于回声状态网络在线自适应的架空线路实时动态热额定评估
2010 IEEE Energy Conversion Congress and Exposition Pub Date : 2010-11-01 DOI: 10.1109/ECCE.2010.5618307
Yi Yang, D. Divan, R. Harley, T. Habetler
{"title":"Real-time dynamic thermal rating evaluation of overhead power lines based on online adaptation of Echo State Networks","authors":"Yi Yang, D. Divan, R. Harley, T. Habetler","doi":"10.1109/ECCE.2010.5618307","DOIUrl":"https://doi.org/10.1109/ECCE.2010.5618307","url":null,"abstract":"To assist utilities in utilizing the overhead power lines more effectively and thus to optimize the utilization of the existing system, it is important to know how to accurately assess the real-time dynamic overload current capacity of lines down to a ‘per span’ level of granularity. Accurate prediction of the conductor temperature ahead of time subject to various conductor overload conditions is the most critical and challenging step when determining the line dynamic thermal rating. An Echo State Network (ESN) based identifier has been demonstrated to identify the overhead conductor thermal dynamics under different weather conditions in a batch learning mode with good accuracy [1]. Through the use of the ESN model, the prediction of conductor temperature can be obtained easily, which in turn helps determine the line dynamic rating in real time. This paper proposes a Sliding-Window (SW) based online learning algorithm to obtain the online adaptation of the ESN-based thermal dynamics identifier to any new/changed ambient weather conditions along the overhead conductor on a continuous base. Both simulation and experimental results are presented to validate the performance of the proposed algorithm. This method requires only temperatures and line current as inputs and its simplified calculation makes it an attractive and cost effective solution to real-time implementation.","PeriodicalId":161915,"journal":{"name":"2010 IEEE Energy Conversion Congress and Exposition","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130801481","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: 21
A ZVS technique for single-switch PWM converters implemented with paralleled MOSFETS 用并联mosfet实现的单开关PWM变换器的ZVS技术
2010 IEEE Energy Conversion Congress and Exposition Pub Date : 2010-11-01 DOI: 10.1109/ECCE.2010.5617806
N. Golbon, G. Moschopoulos
{"title":"A ZVS technique for single-switch PWM converters implemented with paralleled MOSFETS","authors":"N. Golbon, G. Moschopoulos","doi":"10.1109/ECCE.2010.5617806","DOIUrl":"https://doi.org/10.1109/ECCE.2010.5617806","url":null,"abstract":"It is common practice to implement the main power switch in single-switch, pulsewidth modulated (PWM) converters as a combination of parallel MOSFETs to reduce conduction losses. This is done in higher power applications where high switching frequency operation is required and a significant amount of current flows in the converter. An auxiliary circuit is typically used to help the main power switches turn on with zero-voltage switching (ZVS), but previously proposed auxiliary circuits are limited in power and are not suited to higher power applications. In the paper, a new auxiliary circuit that can be used in applications where paralleled MOSFETs are used is proposed. The operation of a boost converter operating with the new auxiliary circuit is described, and general guidelines for the design and implementation of the converter are given. The feasibility of the auxiliary circuit is confirmed by experimental results obtained from a boost converter prototype.","PeriodicalId":161915,"journal":{"name":"2010 IEEE Energy Conversion Congress and Exposition","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130687907","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
An integrated SIDO boost power converter with adaptive freewheel switching technique 采用自适应自由轮开关技术的集成SIDO升压功率变换器
2010 IEEE Energy Conversion Congress and Exposition Pub Date : 2010-11-01 DOI: 10.1109/ECCE.2010.5618303
Yi Zhang, R. Bondade, D. Ma, S. Abedinpour
{"title":"An integrated SIDO boost power converter with adaptive freewheel switching technique","authors":"Yi Zhang, R. Bondade, D. Ma, S. Abedinpour","doi":"10.1109/ECCE.2010.5618303","DOIUrl":"https://doi.org/10.1109/ECCE.2010.5618303","url":null,"abstract":"This paper presents a single-inductor dual-output (SIDO) boost DC-DC converter with an adaptive freewheel switching technique. Due to the adoption of freewheel switching duration averaging, the optimal freewheel durations in each phase of the SIDO converter are acquired within one switching cycle. The optimal freewheel switching duration improves the efficiency of the SIDO converter, especially during unbalanced load conditions, by reducing the conduction losses due to the lossy freewheel switch. The proposed controller also accelerates the freewheel switching current adjustment process during the load transient periods. The proposed converter, operating in the pseudo-continuous conduction mode (PCCM), has been verified through fully transistor-based HSPICE simulation results, with a 130-nm CMOS process. It achieves a maximum efficiency of 90.1%, at an output power of 430 mW and a switching frequency of 500 kHz. For a load change from 100 mA to 50 mA, the proposed technique reduces the conduction losses during the freewheel switching duration by 99.52%, compared with the traditional methods.","PeriodicalId":161915,"journal":{"name":"2010 IEEE Energy Conversion Congress and Exposition","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132784935","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: 9
Design of single-phase shunt active filter for three-phase four-wire distribution systems 三相四线制配电系统单相并联有源滤波器的设计
2010 IEEE Energy Conversion Congress and Exposition Pub Date : 2010-11-01 DOI: 10.1109/ECCE.2010.5618240
C. Hou, Yung-Fu Huang
{"title":"Design of single-phase shunt active filter for three-phase four-wire distribution systems","authors":"C. Hou, Yung-Fu Huang","doi":"10.1109/ECCE.2010.5618240","DOIUrl":"https://doi.org/10.1109/ECCE.2010.5618240","url":null,"abstract":"This study presents single-phase shunt active filter for three-phase four-wire distribution systems to alleviate the overloading of the neutral conductor. The single-phase shunt active filters are installed near the nonlinear diode rectifier loads for each phase. The single-phase shunt active filter system compensates for current harmonics of the diode rectifier load. Furthermore, an integrated pulse width modulator with dead-time generator is adopted to improve output voltage accuracy of single-phase shunt active filter. Simulation and test results are utilized to verify the performance of the single-phase shunt active filter for three-phase four-wire distribution systems.","PeriodicalId":161915,"journal":{"name":"2010 IEEE Energy Conversion Congress and Exposition","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133686852","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: 11
Bidirectional rectifier-inverter multilevel topology without DC-link passive components 双向整流器-逆变器多电平拓扑，无直流链路无源元件
2010 IEEE Energy Conversion Congress and Exposition Pub Date : 2010-11-01 DOI: 10.1109/ECCE.2010.5617989
G. Konstantinou, V. Agelidis
{"title":"Bidirectional rectifier-inverter multilevel topology without DC-link passive components","authors":"G. Konstantinou, V. Agelidis","doi":"10.1109/ECCE.2010.5617989","DOIUrl":"https://doi.org/10.1109/ECCE.2010.5617989","url":null,"abstract":"A capacitor-less rectifier-inverter topology based on a fundamental frequency switched rectifier and a three-level flying capacitor is presented in this paper. The DC-link is free of any passive elements (capacitors, chokes or braking resistors). The removal of the large and bulky DC-link electrolytic capacitor, typically employed in rectifier-inverter topologies results in the elimination of a fault prone element and can have positive effects on the maintenance and operational life of a power electronics converter. The elimination of the DC components also affects the DC-link voltage, which is no longer constant, and makes the use of grid-side AC filters a necessity. The topology and operational principles of such a topology are also verified through simulation results.","PeriodicalId":161915,"journal":{"name":"2010 IEEE Energy Conversion Congress and Exposition","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133277896","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
Reduction of green house gas emission by clean power trading 通过清洁能源交易减少温室气体排放
2010 IEEE Energy Conversion Congress and Exposition Pub Date : 2010-11-01 DOI: 10.1109/ecce.2010.5618416
Jinxu Ding, Arun Kumar Somani
{"title":"Reduction of green house gas emission by clean power trading","authors":"Jinxu Ding, Arun Kumar Somani","doi":"10.1109/ecce.2010.5618416","DOIUrl":"https://doi.org/10.1109/ecce.2010.5618416","url":null,"abstract":"It is well known that the CO2 emitted by fossil energy is one of the major reasons that result in global warming. It is still an open question about how to reduce CO2 emission by the implementation of an investment plan for clean power systems. In this paper, we propose a clean power trading method among neighboring regions such that we can reduce CO2 emission in a large region and reduce the imbalance between the power demand and supply in a region caused by the fluctuation of clean energy. With the five states with rich wind energy in America as an example, we use the quantitative computation results of the five states (from a modeling framework designed by ourselves [3]) to show that our proposed clean power trading method can help reduce CO2 emission and realize balance.","PeriodicalId":161915,"journal":{"name":"2010 IEEE Energy Conversion Congress and Exposition","volume":"143 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132152807","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
Real-time measurement of power quantities under sinusoidal and non-sinusoidal conditions for single-phase systems 实时测量单相系统在正弦和非正弦条件下的功率量
2010 IEEE Energy Conversion Congress and Exposition Pub Date : 2010-11-01 DOI: 10.1109/ECCE.2010.5617997
H. Dalvand, V. Agelidis
{"title":"Real-time measurement of power quantities under sinusoidal and non-sinusoidal conditions for single-phase systems","authors":"H. Dalvand, V. Agelidis","doi":"10.1109/ECCE.2010.5617997","DOIUrl":"https://doi.org/10.1109/ECCE.2010.5617997","url":null,"abstract":"This paper describes the real-time implementation of a time-domain method to calculate the power quantities based on IEEE 1459-2000 for single-phase systems under sinusoidal and non-sinusoidal conditions. The proposed method is based on recursive implementation of Park transformations for the detection of fundamental and harmonic components of voltage and current. The technique employs a recursive algorithm that avoids the low-pass filtering stage which causes uncertainty and delay in the conventional Park transformation based approaches making real-time measuring of the quantities possible with very good accuracy and reduced delay. The performance of the method is confirmed by simulated using MATLAB/SIMULINK and selected results are presented. Moreover, the proposed technique is implemented on a PC-based instrument in order to investigate its accuracy in the presence of measurement transducers.","PeriodicalId":161915,"journal":{"name":"2010 IEEE Energy Conversion Congress and Exposition","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133226297","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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