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2010 1st Power Electronic & Drive Systems & Technologies Conference (PEDSTC)最新文献

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A novel AC/DC converter for high current and low voltage applications 一种新型的大电流、低电压交流/直流变换器
2010 1st Power Electronic & Drive Systems & Technologies Conference (PEDSTC) Pub Date : 2010-05-24 DOI: 10.1109/PEDSTC.2010.5471840
S. Mohamadian, A. Shoulaie
{"title":"A novel AC/DC converter for high current and low voltage applications","authors":"S. Mohamadian, A. Shoulaie","doi":"10.1109/PEDSTC.2010.5471840","DOIUrl":"https://doi.org/10.1109/PEDSTC.2010.5471840","url":null,"abstract":"In this paper a new configuration for AC/DC conversion in high current and low voltage applications is presented. The proposed converter is a combination of AC/AC regulator, star-zigzag transformer and half-wave diode rectifier. This system is recommended to be used instead of thyristor-controlled rectifiers in that it offers some advantageous such as reduced iron and copper losses as rectified voltage decreases. In addition, in thyristor-controlled rectifiers, the efficiency of rectification is unsatisfactory as the firing angle of thyristors increases. This paper discusses the working principles of the proposed system and then different types of powers such as active, reactive and distortion power and the efficiency are compared between the proposed converter and thyristor-controlled rectifier. Simulation results and theoretical analysis show the priority of the proposed system in high current and low voltage applications.","PeriodicalId":104998,"journal":{"name":"2010 1st Power Electronic & Drive Systems & Technologies Conference (PEDSTC)","volume":"131 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115617590","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
Reducing Common-mode voltage and power dissipation in cascaded multilevel inverters with flexible dc sources 降低柔性直流电源级联多电平逆变器的共模电压和功耗
2010 1st Power Electronic & Drive Systems & Technologies Conference (PEDSTC) Pub Date : 2010-05-24 DOI: 10.1109/PEDSTC.2010.5471836
H. Ghoreishy, A. Yazdian, S. Farhangi, M. Mohamadian
{"title":"Reducing Common-mode voltage and power dissipation in cascaded multilevel inverters with flexible dc sources","authors":"H. Ghoreishy, A. Yazdian, S. Farhangi, M. Mohamadian","doi":"10.1109/PEDSTC.2010.5471836","DOIUrl":"https://doi.org/10.1109/PEDSTC.2010.5471836","url":null,"abstract":"dc sources in cascaded multilevel inverters have constant and non-flexible values. Flexibility in the proposed values increases the system degrees of freedom in mitigating more harmonics leading to an improved THD. In this paper, a novel SHM control strategy has been proposed for cascaded multilevel inverters with flexible dc sources. Minimizing the objective function in the proposed strategy, the optimized dc sources values are found besides the switching angles. These optimized sources have lower values compared to the conventional ones. This is a major advantage of this proposed strategy as it leads to a lower common-mode voltage and power dissipation along with a significant improvement in the THD. Software implementation of the conventional and proposed SHM control strategies has been applied to five and seven-level inverters. Results show the superiority of the proposed strategy from the THD point of view along with the reduction in Common-mode voltage and power dissipation.","PeriodicalId":104998,"journal":{"name":"2010 1st Power Electronic & Drive Systems & Technologies Conference (PEDSTC)","volume":"38 10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120816197","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
Speed sensorless hybrid field oriented and direct torque control of induction motor drive for wide speed range applications 无速度传感器的混合磁场定向和直接转矩控制感应电机驱动的宽速度范围的应用
2010 1st Power Electronic & Drive Systems & Technologies Conference (PEDSTC) Pub Date : 2010-05-24 DOI: 10.1109/PEDSTC.2010.5471824
M. Farasat, N. Rostami, M. Feyzi
{"title":"Speed sensorless hybrid field oriented and direct torque control of induction motor drive for wide speed range applications","authors":"M. Farasat, N. Rostami, M. Feyzi","doi":"10.1109/PEDSTC.2010.5471824","DOIUrl":"https://doi.org/10.1109/PEDSTC.2010.5471824","url":null,"abstract":"This paper describes a control scheme of speed sensorless induction motor drive employing salient features of field oriented control (FOC) and direct torque control (DTC) methods. The proposed control system utilizes the advantages of the both FOC and DTC methods and at the same time eliminates their implementation difficulties. The performance of drive in the field weakening region is also studied. A control scheme for robust flux-weakening operation of motor drive is adopted. The basic idea is to adjust the flux reference on the basis of the q-axis stator current error, thus determining a spontaneous flux weakening. Simulation results show that the proposed control scheme is able to follow the reference speed with a reasonable dynamic and relatively low error.","PeriodicalId":104998,"journal":{"name":"2010 1st Power Electronic & Drive Systems & Technologies Conference (PEDSTC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129153832","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
Effect of Air gap variation on characteristics of an Axial flux hysteresis motor 气隙变化对轴向磁滞电机特性的影响
2010 1st Power Electronic & Drive Systems & Technologies Conference (PEDSTC) Pub Date : 2010-05-24 DOI: 10.1109/PEDSTC.2010.5471798
M. Modarres, A. Vahedi, Mohammadreza Ghazanchaei
{"title":"Effect of Air gap variation on characteristics of an Axial flux hysteresis motor","authors":"M. Modarres, A. Vahedi, Mohammadreza Ghazanchaei","doi":"10.1109/PEDSTC.2010.5471798","DOIUrl":"https://doi.org/10.1109/PEDSTC.2010.5471798","url":null,"abstract":"Axial flux hysteresis motor (AFHM) such as other types of hysteresis motor is self-starting synchronous motor that use the hysteresis characteristics of magnetic materials. It is known that the magnetic characteristics of hysteresis motor could be easily affected by air gap and structure dimensions variation. Air gap length plays an important role in flux distribution in hysteresis ring that can influence the output torque, terminal current and efficiency of AFHM. Regarding this issue, in this study effect of air gap variation on performance characteristics of an axial flux hysteresis motor is investigated. Effect of air-gap length on electrical circuit model is perused. Finally, simulation of AFHM in order to extract the output values of motor and sensitivity analysis on air gap variation is done using 3D-Finite Element Model. The simulation is based on Maxwell's field equations for an axial flux type machine at synchronous speed. Also, a hysteresis loop in the shape of an inclined ellipse is adopted. This study can help designers in design approach of such motors.","PeriodicalId":104998,"journal":{"name":"2010 1st Power Electronic & Drive Systems & Technologies Conference (PEDSTC)","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114846987","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
Review and comparison of control methods for uninterruptible power supplies 不间断电源控制方法的回顾和比较
2010 1st Power Electronic & Drive Systems & Technologies Conference (PEDSTC) Pub Date : 2010-05-24 DOI: 10.1109/PEDSTC.2010.5471864
M. Niroomand, H. Karshenas
{"title":"Review and comparison of control methods for uninterruptible power supplies","authors":"M. Niroomand, H. Karshenas","doi":"10.1109/PEDSTC.2010.5471864","DOIUrl":"https://doi.org/10.1109/PEDSTC.2010.5471864","url":null,"abstract":"High performance UPS inverters have stringent control requirements both under steady-state and under transient conditions. Many different control techniques have been applied to UPS inverters. However, there are few publications reviewing the literature on these control techniques and classifying the same, particularly with regard to the recent developments in this area. In this paper, a review of the most solutions for control of UPS inverters is carried out. These control techniques are classified as conventional or classical control, predictive control, learning control and nonlinear control. The major advantages and disadvantages of these methods are highlighted and compared. Then, five control methods were compared using simulation and a hybrid controller (Repetitive Controller plus Deadbeat Controller) is evaluated by using experiments.","PeriodicalId":104998,"journal":{"name":"2010 1st Power Electronic & Drive Systems & Technologies Conference (PEDSTC)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125464512","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: 26
Maximum torque per ampere (MTPA) control of dual mechanical ports electric machine 双机械端口电机的最大转矩每安培(MTPA)控制
2010 1st Power Electronic & Drive Systems & Technologies Conference (PEDSTC) Pub Date : 2010-05-24 DOI: 10.1109/PEDSTC.2010.5471822
A. Ghayebloo, A. Radan
{"title":"Maximum torque per ampere (MTPA) control of dual mechanical ports electric machine","authors":"A. Ghayebloo, A. Radan","doi":"10.1109/PEDSTC.2010.5471822","DOIUrl":"https://doi.org/10.1109/PEDSTC.2010.5471822","url":null,"abstract":"In this paper, maximum torque per ampere (MTPA) control strategy is proposed for a special machine called dual mechanical ports (DMP) electric machine. In the conventional hybrid electrical vehicles (HEV), this machine is replaced to planetary gear box and two electric machines and makes their structures simpler. The proposed MTPA strategy fully utilizes the reluctance torque and maximizes the torque capacity of the machine. Farther more MTPA method is equivalent to the objective of minimum copper loss. Sound theoretical basis is given in the context. Simulation results are presented. It will be proved that proposed MTPA method can increase machine torque capacity about 50% in one rotor and 100% in the other.","PeriodicalId":104998,"journal":{"name":"2010 1st Power Electronic & Drive Systems & Technologies Conference (PEDSTC)","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133151962","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
Torque ripple suppression of surface mounted permanent magnet synchronous motor using harmonic injected currents 谐波注入电流抑制表面安装式永磁同步电机转矩脉动
2010 1st Power Electronic & Drive Systems & Technologies Conference (PEDSTC) Pub Date : 2010-05-24 DOI: 10.1109/PEDSTC.2010.5471816
M. Rahimi, K. Abbaszadeh, A. Radan
{"title":"Torque ripple suppression of surface mounted permanent magnet synchronous motor using harmonic injected currents","authors":"M. Rahimi, K. Abbaszadeh, A. Radan","doi":"10.1109/PEDSTC.2010.5471816","DOIUrl":"https://doi.org/10.1109/PEDSTC.2010.5471816","url":null,"abstract":"This paper describes a new approach based on Fourier analysis and simple harmonic computation method to minimize torque pulsation and current harmonic noises in a surface mounted permanent magnet synchronous motors (SPMSM) with field oriented control (FOC) system. To suppress torque ripple caused mainly by non-sinusoidal back electromotive force (BEMF), and harmonics in control system, non-sinusoidal currents should be injected into the PMSM. Although many effective schemes based on new adaptive control or iterative optimization methods, are presented in previous works but these methods increase complexity of control system. As a comparison with the other methods, this paper provides a novel simple harmonic compensation approach with significant effects to obtain optimal motor drive without any complexity. The simulation results in MATLAB /Simulink confirm the validity of proposed control approach and its effectiveness in minimizing torque pulsations and harmonic noises in PMSM.","PeriodicalId":104998,"journal":{"name":"2010 1st Power Electronic & Drive Systems & Technologies Conference (PEDSTC)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131312552","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 new method for calculation of impedance in various frequencies 一种计算各频率阻抗的新方法
2010 1st Power Electronic & Drive Systems & Technologies Conference (PEDSTC) Pub Date : 2010-05-24 DOI: 10.1109/PEDSTC.2010.5471859
S. A. Fazljoo, M. Besmi
{"title":"A new method for calculation of impedance in various frequencies","authors":"S. A. Fazljoo, M. Besmi","doi":"10.1109/PEDSTC.2010.5471859","DOIUrl":"https://doi.org/10.1109/PEDSTC.2010.5471859","url":null,"abstract":"In this paper a new method is presented for calculation of frequency-dependent impedance in a straight. The mentioned method is compared with two other approaches which are conventionally used in high frequencies impedance calculation. The new method is relatively fast and simple and its results are admissibly accurate and conforms the conventional methods.","PeriodicalId":104998,"journal":{"name":"2010 1st Power Electronic & Drive Systems & Technologies Conference (PEDSTC)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116944645","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
Z-Source Inverter based Dynamic Voltage Restorer 基于z源逆变器的动态电压恢复器
2010 1st Power Electronic & Drive Systems & Technologies Conference (PEDSTC) Pub Date : 2010-05-24 DOI: 10.1109/PEDSTC.2010.5471780
S. Torabzad, E. Babaei, M. Kalantari
{"title":"Z-Source Inverter based Dynamic Voltage Restorer","authors":"S. Torabzad, E. Babaei, M. Kalantari","doi":"10.1109/PEDSTC.2010.5471780","DOIUrl":"https://doi.org/10.1109/PEDSTC.2010.5471780","url":null,"abstract":"In this paper, a new topology is proposed for Z-Source Inverter (ZSI) based Dynamic Voltage Restorer (DVR) which is fed through a source side shunt rectifier. In the proposed system, the size of energy storage element is decreased in compare with the conventional systems where the rating of located power electronics devices is less than the systems using ZSI or boost choppers. The proposed system is able to compensate long and significantly large voltage sags and can acceptably reduce the downstream fault current. The proposed system is simulated in PSCAD/EMTDC and the results show the correct operation of the system.","PeriodicalId":104998,"journal":{"name":"2010 1st Power Electronic & Drive Systems & Technologies Conference (PEDSTC)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116993392","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: 31
Influence of nonsinusoidal flux waveform on transformer design methodology 非正弦磁通波形对变压器设计方法的影响
2010 1st Power Electronic & Drive Systems & Technologies Conference (PEDSTC) Pub Date : 2010-05-24 DOI: 10.1109/PEDSTC.2010.5471855
Navid Abbasi Kohan, K. Abbaszadeh
{"title":"Influence of nonsinusoidal flux waveform on transformer design methodology","authors":"Navid Abbasi Kohan, K. Abbaszadeh","doi":"10.1109/PEDSTC.2010.5471855","DOIUrl":"https://doi.org/10.1109/PEDSTC.2010.5471855","url":null,"abstract":"The trend toward miniaturization of high frequency (HF) power transformers and decreasing their cost has motivated research on high power density transformer design and optimization. This paper discusses the calculation of the power losses and optimum flux density in high frequency power transformer used in power electronics applications, where the remagnetization process is often nonsinusoidal. A novel approach is proposed to design the HF power transformer in a accurate, proper and reliable manner. Finally, a comparison of different applied approaches is presented for a DC/AC flyback-type converter.","PeriodicalId":104998,"journal":{"name":"2010 1st Power Electronic & Drive Systems & Technologies Conference (PEDSTC)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123709418","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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