发布求助
文献互助 智能选刊 最新文献

2011 2nd Power Electronics, Drive Systems and Technologies Conference最新文献

筛选
英文 中文
Reduction of switching frequency using reference phase disposition PWM technique in multilevel H-bridge inverters 用参考相位配置PWM技术降低多电平h桥逆变器的开关频率
2011 2nd Power Electronics, Drive Systems and Technologies Conference Pub Date : 2011-04-05 DOI: 10.1109/PEDSTC.2011.5742433
H. Bayat, J. Moghani, S. Fathi, M. Taheri
{"title":"Reduction of switching frequency using reference phase disposition PWM technique in multilevel H-bridge inverters","authors":"H. Bayat, J. Moghani, S. Fathi, M. Taheri","doi":"10.1109/PEDSTC.2011.5742433","DOIUrl":"https://doi.org/10.1109/PEDSTC.2011.5742433","url":null,"abstract":"Cascaded H-bridge multilevel inverter topology is one of the most popular topologies in high voltage applications. This topology uses multiple units of H-bridge power cells connected in series chain to produce AC voltage. Multilevel inverters have other topologies that can be used according to condition and demand. Pulse width modulation is a popular method to control Cascaded H-bridge inverters. This method has some disadvantages such as high power dissipation in switches when the switching frequency is high. In this paper a method called reference voltage phase disposition PWM is presented which can reduce the switching frequency. A 5 level cascaded H-bridge inverter is simulated using Matlab/Simulink and the waveforms are analyzed to illustrate effectiveness of this method. The simulation results show that without any significant changes in harmonic content, switches are relaxed and switching losses though reduced.","PeriodicalId":413303,"journal":{"name":"2011 2nd Power Electronics, Drive Systems and Technologies Conference","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123031970","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
Reduction of undesired harmonic components in a steel industrial plant with DC electric arc furnaces 采用直流电弧炉的炼钢厂减少不需要的谐波分量
2011 2nd Power Electronics, Drive Systems and Technologies Conference Pub Date : 2011-04-05 DOI: 10.1109/PEDSTC.2011.5742475
Arash Dehestani Kolagar, A. Shoulaie
{"title":"Reduction of undesired harmonic components in a steel industrial plant with DC electric arc furnaces","authors":"Arash Dehestani Kolagar, A. Shoulaie","doi":"10.1109/PEDSTC.2011.5742475","DOIUrl":"https://doi.org/10.1109/PEDSTC.2011.5742475","url":null,"abstract":"An electric arc furnace is a nonlinear, time varying load with stochastic behavior, which gives rise to harmonics, interharminics and voltage flicker. Since a power system has finite impedance, the current distortion caused by a DC electric arc furnace load creates a corresponding voltage distortion in the supply lines. The current and voltage harmonic distortion causes several problems in electrical power system, such as electrical, electronic, and computer equipment damage, control system errors due to electrical noise caused by harmonics, additional losses in transmission and distribution networks and etc. This paper makes an effort to display the differences between two types of DC electric arc furnace feeding system from the viewpoint of total harmonic distortion at AC side. These Types of feeding system include controlled rectifier power supply and uncontrolled rectifier chopper power supply. Simulation results show that the uncontrolled rectifier chopper power supply is more efficient than the other one.","PeriodicalId":413303,"journal":{"name":"2011 2nd Power Electronics, Drive Systems and Technologies Conference","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123444077","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
Optimizing cogging torque reduction in slot opening shift method for BLDC motor by RSM 基于RSM的无刷直流电动机开槽换档减齿槽转矩优化
2011 2nd Power Electronics, Drive Systems and Technologies Conference Pub Date : 2011-04-05 DOI: 10.1109/PEDSTC.2011.5742496
K. Abbaszadeh, M. Jafari
{"title":"Optimizing cogging torque reduction in slot opening shift method for BLDC motor by RSM","authors":"K. Abbaszadeh, M. Jafari","doi":"10.1109/PEDSTC.2011.5742496","DOIUrl":"https://doi.org/10.1109/PEDSTC.2011.5742496","url":null,"abstract":"The main target of this paper is optimizing the slot-opening shift for cogging torque reduction in BLDC motors. In a slot-opening shift method there is no skew, therefore the known drawbacks of the skewing is prevented. In the first part of the paper the slot-opening shift method for a BLDC motor is discussed. In this case, it is desired to find a method for cogging torque reduction without deteriorating the trapezoidal shape of back- EMF. In the second part optimization of this method is discussed. In this case, it's tried to optimize the amount of shifts in slot opening for maximum reduction in cogging torque. Response surface Method (RSM) which is a branch or Design of Experiments (DOE) is used as optimization Method. The simulation result by finite element shows a considerable reduction in the cogging torque of the optimized motor. Moreover the simulation verifies the quality of back-EMF shape in each case.","PeriodicalId":413303,"journal":{"name":"2011 2nd Power Electronics, Drive Systems and Technologies Conference","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134209421","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
A complete excitation-shaft-bearing model to overcome the shaft induced voltage and bearing current 一个完整的激励-轴-轴承模型，以克服轴感应电压和轴承电流
2011 2nd Power Electronics, Drive Systems and Technologies Conference Pub Date : 2011-04-05 DOI: 10.1109/PEDSTC.2011.5742447
R. Kazemi Golkhandan, M. Tavakoli Bina, M. Golkar, M. Jokar
{"title":"A complete excitation-shaft-bearing model to overcome the shaft induced voltage and bearing current","authors":"R. Kazemi Golkhandan, M. Tavakoli Bina, M. Golkar, M. Jokar","doi":"10.1109/PEDSTC.2011.5742447","DOIUrl":"https://doi.org/10.1109/PEDSTC.2011.5742447","url":null,"abstract":"This paper proposes a complete distributed model for investigating the induced shaft voltage and bearing current in turbo generators due to the interaction with the static excitation systems. This undesirable voltage affects the insulations gradually, lowering the life expectancy of the whole system. If the shaft voltage exceeds the dielectric breakdown voltage level of the lubricating grease film in journal bearings, an electrical discharge current flows through the bearings. In order to inspect the shaft voltage, a passive filter is proposed to overcome the stated issue. Both the proposed model and the passive filtering technique are simulated with SIMULINK, and discussed in detail to confirm the presence of the bearing current and shaft voltage.","PeriodicalId":413303,"journal":{"name":"2011 2nd Power Electronics, Drive Systems and Technologies Conference","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131909944","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 generalized algorithm for switch reduction in multioutput single-phase inverters: With/without Z-source impedance network 带/不带z源阻抗网络的多输出单相逆变器开关减小的广义算法
2011 2nd Power Electronics, Drive Systems and Technologies Conference Pub Date : 2011-04-05 DOI: 10.1109/PEDSTC.2011.5742435
A. Fatemi, M. Azizi, M. Shahparasti, M. Mohamadian, A. Yazdian
{"title":"A generalized algorithm for switch reduction in multioutput single-phase inverters: With/without Z-source impedance network","authors":"A. Fatemi, M. Azizi, M. Shahparasti, M. Mohamadian, A. Yazdian","doi":"10.1109/PEDSTC.2011.5742435","DOIUrl":"https://doi.org/10.1109/PEDSTC.2011.5742435","url":null,"abstract":"A new algorithm is proposed in this paper for switch reduction in multi-output single-phase converters. The idea is first explained by introducing the dual-output six-switch inverter and then generalized into the switch reduction of m-output topology. Two modes of operation are defined for the proposed converter and the modulation scheme of each mode is devised. To compensate for the reduced dc bus utilization, a general algorithm is also proposed for employing Z-source impedance (ZSI) network in m-output configuration. Simulation results validated the veracity of the proposed algorithm.","PeriodicalId":413303,"journal":{"name":"2011 2nd Power Electronics, Drive Systems and Technologies Conference","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115728191","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
A novel fault-tolerant four-leg AC/AC converter capable of compensating unbalanced source/load 一种能够补偿不平衡源负载的新型容错四支路AC/AC变换器
2011 2nd Power Electronics, Drive Systems and Technologies Conference Pub Date : 2011-04-05 DOI: 10.1109/PEDSTC.2011.5742478
M. Azizi, A. Fatemi, M. Mohamadian, A. Yazdian
{"title":"A novel fault-tolerant four-leg AC/AC converter capable of compensating unbalanced source/load","authors":"M. Azizi, A. Fatemi, M. Mohamadian, A. Yazdian","doi":"10.1109/PEDSTC.2011.5742478","DOIUrl":"https://doi.org/10.1109/PEDSTC.2011.5742478","url":null,"abstract":"A novel reduced switch count AC/AC converter is proposed in this paper which can compensate for unbalanced characteristics of both the input AC source and the output three-phase load. The proposed converter satisfies all the expectations of an ideal robust converter such as unity input power factor, low THD sinusoidal input current and output voltage and fast dynamic response even under serious fault conditions which may occur in one/two phase(s) of the converter source/leg. Being capable of properly supplying the load even under two-phase grid-side fault, the backup batteries do not go into frequent charge/discharge cycling. This increases the battery life considerably. Based on frequency isolation, two modes of operation are defined and the proper control system is designed. The validity of performance of the proposed converter is tested and verified through simulation.","PeriodicalId":413303,"journal":{"name":"2011 2nd Power Electronics, Drive Systems and Technologies Conference","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123942059","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
Investigation of influential factors on passive islanding detection methods of inverter based distributed generation 基于逆变器的分布式发电被动孤岛检测方法的影响因素研究
2011 2nd Power Electronics, Drive Systems and Technologies Conference Pub Date : 2011-04-05 DOI: 10.1109/PEDSTC.2011.5742421
Amin Ghaderi, M. Kalantar
{"title":"Investigation of influential factors on passive islanding detection methods of inverter based distributed generation","authors":"Amin Ghaderi, M. Kalantar","doi":"10.1109/PEDSTC.2011.5742421","DOIUrl":"https://doi.org/10.1109/PEDSTC.2011.5742421","url":null,"abstract":"Islanding detection is one of the most dominant challenges for distributed generation systems connected to the main power grid. Rudimentary islanding detection methods (frequency relays, voltage relays), have considerable non-detection zones (NDZ). Nod-detection zone which defines as the area that the method fails to detect the islanding, is the primary criterion to evaluate the detection method performance. In this paper, factors which affect this zone are introduced, and their effects on the passive islanding detection methods, like voltage and frequency relays, are examined. Parameters such as load dependence on frequency and voltage, inverter control system, filters, load's quality factor, SCR and X/R were considered. Finally, a most sever condition for a passive method to detect the islanding is presented.","PeriodicalId":413303,"journal":{"name":"2011 2nd Power Electronics, Drive Systems and Technologies Conference","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127542976","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: 12
Thermal design, modeling and simulation of air forced cooling heat sink for Thyristor Controlled Reactor (TCR) 可控硅控制堆(TCR)空气强制冷却散热器的热设计、建模与仿真
2011 2nd Power Electronics, Drive Systems and Technologies Conference Pub Date : 2011-04-05 DOI: 10.1109/PEDSTC.2011.5742495
M. Asadi, B. Arezi
{"title":"Thermal design, modeling and simulation of air forced cooling heat sink for Thyristor Controlled Reactor (TCR)","authors":"M. Asadi, B. Arezi","doi":"10.1109/PEDSTC.2011.5742495","DOIUrl":"https://doi.org/10.1109/PEDSTC.2011.5742495","url":null,"abstract":"Cooling is important for appropriate operation of the power electronic devices. In low power applications, the cooling is done by air forced systems. Air forced cooling systems in low power valves are more reliable and simpler than water cooling systems. This paper examines air forced cooling model of the power electronic devices precisely with thermal transfer equations. This paper focuses on dimensions of heat sink and its channels in details and also, a flow chart for design of heat sink is presented based on air velocity and dimensions of channels. This paper calculates and simulates a case study. Finally, the results of simulations based on ANSYS, are compared with calculation results.","PeriodicalId":413303,"journal":{"name":"2011 2nd Power Electronics, Drive Systems and Technologies Conference","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127272033","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
An experimental examination of a fuzzy logic-based DTC scheme 基于模糊逻辑的DTC方案的实验研究
2011 2nd Power Electronics, Drive Systems and Technologies Conference Pub Date : 2011-04-05 DOI: 10.1109/PEDSTC.2011.5742427
H. Valizadeh Haghi, B. Eskandari, E. Pashajavid, M. Tavakoli Bina
{"title":"An experimental examination of a fuzzy logic-based DTC scheme","authors":"H. Valizadeh Haghi, B. Eskandari, E. Pashajavid, M. Tavakoli Bina","doi":"10.1109/PEDSTC.2011.5742427","DOIUrl":"https://doi.org/10.1109/PEDSTC.2011.5742427","url":null,"abstract":"Direct torque control (DTC) of an induction motor is a relatively simple scheme making rapid computations while requiring no speed sensors. It indicates low sensitivity to parameter variations as well. Accordingly, it has become a promising alternative to the classic vector control methods. This paper reports an experimental implementation of a DTC scheme. As one of the main characteristics of the conventional DTC is the torque ripple, the most of our efforts have been placed to reduce this ripple in practice. A fuzzy logic-based approach has been employed to achieve a better drive performance by varying the duty ratio of the selected voltage vector during each switching period according to the magnitude of the torque error and position of the stator flux. The main objective throughout the reported research project is to achieve an operational setup but not to propose a new theory. The effectiveness of the control method was verified by simulation using Simulink, and experimentally using TMS320F2812 DSP-controlled setup.","PeriodicalId":413303,"journal":{"name":"2011 2nd Power Electronics, Drive Systems and Technologies Conference","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123730899","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
Optimization of driving force of linear switched reluctance motor 线性开关磁阻电机的驱动力优化
2011 2nd Power Electronics, Drive Systems and Technologies Conference Pub Date : 2011-04-05 DOI: 10.1109/PEDSTC.2011.5742500
S. Darabi, M. Ardebili
{"title":"Optimization of driving force of linear switched reluctance motor","authors":"S. Darabi, M. Ardebili","doi":"10.1109/PEDSTC.2011.5742500","DOIUrl":"https://doi.org/10.1109/PEDSTC.2011.5742500","url":null,"abstract":"In this paper various configurations of linear switched reluctance motor (LSRM) with permanent magnet (PM) are studied in order to obtain the high driving force construction. The 3-D Finite Element Method (FEM) is used to evaluate LSRM parameters. By comparing the maximum driving force the optimal construction has been determined. Its average driving force is increased 27%. The analysis presents that in the optimal structure the permanent magnet is applied in middle of pole surfaces.","PeriodicalId":413303,"journal":{"name":"2011 2nd Power Electronics, Drive Systems and Technologies Conference","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132459790","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
下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信
小红书