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2017 8th Power Electronics, Drive Systems & Technologies Conference (PEDSTC)最新文献

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Virtual Flux based Model-Predictive Direct Power Control of three-phase Three-Level NPC PWM rectifier 基于虚拟磁链的三相三电平NPC PWM整流器模型预测直接功率控制
2017 8th Power Electronics, Drive Systems & Technologies Conference (PEDSTC) Pub Date : 1900-01-01 DOI: 10.1109/PEDSTC.2017.7910316
Alireza Lahooti Eshkevari, M. Arasteh
{"title":"Virtual Flux based Model-Predictive Direct Power Control of three-phase Three-Level NPC PWM rectifier","authors":"Alireza Lahooti Eshkevari, M. Arasteh","doi":"10.1109/PEDSTC.2017.7910316","DOIUrl":"https://doi.org/10.1109/PEDSTC.2017.7910316","url":null,"abstract":"This paper presents virtual flux based model predictive direct power control (VF-MPDPC) strategy to control the three-phase three-level NPC PWM rectifier. In this strategy all equations for calculating and predicting instantaneous active and reactive powers values are based on mains virtual flux vector. The mains virtual flux vector is estimated by a first order low pass filter. The major aim of this strategy is to improve the robustness of conventional model predictive control against mains harmonics condition. It also provides unity power factor, low input current THD under mains harmonics conditions, accurate DC bus voltage and controlling the active and reactive powers flow. The proposed VF-MPDPC is verified by MATLAB/Simulink tools.","PeriodicalId":414828,"journal":{"name":"2017 8th Power Electronics, Drive Systems & Technologies Conference (PEDSTC)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114389126","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
Extended boost trans-Z-source inverter 扩展升压反z源逆变器
2017 8th Power Electronics, Drive Systems & Technologies Conference (PEDSTC) Pub Date : 1900-01-01 DOI: 10.1109/PEDSTC.2017.7910403
Mehran Moslehi Bajestan, M. Shamsinejad
{"title":"Extended boost trans-Z-source inverter","authors":"Mehran Moslehi Bajestan, M. Shamsinejad","doi":"10.1109/PEDSTC.2017.7910403","DOIUrl":"https://doi.org/10.1109/PEDSTC.2017.7910403","url":null,"abstract":"This paper proposes a new topology, which is named the extended boost trans-Z-source inverter. The extended trans-Z-source inverter, which is based on the improved trans-Z-source inverter, provides a continuous input current and a higher boost ability compared to most previously proposed Z-source inverter-based topologies. Another advantage of this proposed topology is its expandability. In some applications such as distributed power generation where high gain is often demanded, higher boost rates can be obtained by adding extra passive components. In order to investigate the performance of the proposed topology, comparison between the proposed topology and previously proposed schemes, in terms of boost ability, number of components and voltage and current stresses is made. Both the analytical and simulation results validate proper operation and performance of the proposed scheme.","PeriodicalId":414828,"journal":{"name":"2017 8th Power Electronics, Drive Systems & Technologies Conference (PEDSTC)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121657006","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
Incremental conductance based MPPT using a high step-up Y-source DC-DC Converter 采用高升压y源DC-DC变换器的基于增量电导的MPPT
2017 8th Power Electronics, Drive Systems & Technologies Conference (PEDSTC) Pub Date : 1900-01-01 DOI: 10.1109/PEDSTC.2017.7910385
S. Ahmadzadeh, G. Arab Markadeh
{"title":"Incremental conductance based MPPT using a high step-up Y-source DC-DC Converter","authors":"S. Ahmadzadeh, G. Arab Markadeh","doi":"10.1109/PEDSTC.2017.7910385","DOIUrl":"https://doi.org/10.1109/PEDSTC.2017.7910385","url":null,"abstract":"Renewable energy sources such as; solar array, wind turbine or fuel cell, need a step-up converter to produce proper and useful voltage levels. In this paper a high step-up converter with three coupled inductors called Y-source impedance network, which can provide a very high boost at lower shoot-through duty cycle of switch and has one more degree of freedom to achieve voltage boost is utilized. In This case, in order to Maximum Power Point Tracking (MPPT) of the solar energy in photovoltaic (PV) system, the incremental conductance method is improved. The proposed method guaranties the MPPT realization with subject to wide changes of load resistance and various atmospheric conditions. Simulation results demonstrate the superiority of the proposed incremental conductance MPPT technique than conventional method due to dynamic response. These results are in good agreement and prove the effectiveness and capability of the method.","PeriodicalId":414828,"journal":{"name":"2017 8th Power Electronics, Drive Systems & Technologies Conference (PEDSTC)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124289161","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
Assessment of thermal network models for estimating IGBT junction temperature of a buck converter 用于估计降压变换器IGBT结温的热网模型的评估
2017 8th Power Electronics, Drive Systems & Technologies Conference (PEDSTC) Pub Date : 1900-01-01 DOI: 10.1109/PEDSTC.2017.7910398
Omid Alavi, Mohammad Abdollah, Abbas Hooshmand Viki
{"title":"Assessment of thermal network models for estimating IGBT junction temperature of a buck converter","authors":"Omid Alavi, Mohammad Abdollah, Abbas Hooshmand Viki","doi":"10.1109/PEDSTC.2017.7910398","DOIUrl":"https://doi.org/10.1109/PEDSTC.2017.7910398","url":null,"abstract":"Accurate estimation of semiconductors' junction temperature is particularly important that the impact of the temperature on their reliability and performance is evident. The analysis in this paper reveals that the using of RC thermal network models with reduced number of layers can be tremendously useful. Additionally, a simple technique for transforming n-layer Foster model to a one-cell Cauer ladder model is proposed. The one-cell Cauer model implemented by state-space equations can accelerate calculations. This study also presents a finite element method (FEM) validation based on the real IGBT module geometry for the analyses. A buck converter is considered as the case study. The obtained results show that the one-layer Cauer model can provide the exact outcomes. The difference between the thermal impedance curves is considerable; however, both curves have almost the same peak value.","PeriodicalId":414828,"journal":{"name":"2017 8th Power Electronics, Drive Systems & Technologies Conference (PEDSTC)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115535060","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
A new bidirectional switching converter structure for PHEV 一种新型插电式混合动力汽车双向开关变换器结构
2017 8th Power Electronics, Drive Systems & Technologies Conference (PEDSTC) Pub Date : 1900-01-01 DOI: 10.1109/PEDSTC.2017.7910408
Mohammad Jahani, A. Akbari, J. Milimonfared, J. Shokrollahi Moghani
{"title":"A new bidirectional switching converter structure for PHEV","authors":"Mohammad Jahani, A. Akbari, J. Milimonfared, J. Shokrollahi Moghani","doi":"10.1109/PEDSTC.2017.7910408","DOIUrl":"https://doi.org/10.1109/PEDSTC.2017.7910408","url":null,"abstract":"PHEVs with ability of grid connection in addition to decreasing in dependence on fossil fuels provide stability, voltage control and frequency control. Charger for PHEVs includes a bidirectional AC-DC converter which followed using a bidirectional DC-DC converter. In this article a proper structure for bidirectional switching converter of PHEV is proposed. The solution proposed in this article has high energy density, low volume and low weight. The proposed battery charger has ability of operation in two modes of charge and discharge. To reach proper performance of battery an integrated controller for both modes of operation is presented. Verification of theoretical results is done by using simulation of a sample converter with 18.2kW nominal power in the MATLAB software. The results show effectiveness operation of converter and controller structure.","PeriodicalId":414828,"journal":{"name":"2017 8th Power Electronics, Drive Systems & Technologies Conference (PEDSTC)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117063250","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
Optimal down sampling for ADC-based real-time simulation of basic power electronic converters 基于adc的基础电力电子变换器实时仿真的最优下采样
2017 8th Power Electronics, Drive Systems & Technologies Conference (PEDSTC) Pub Date : 1900-01-01 DOI: 10.1109/PEDSTC.2017.7910333
Mohsen Rezayati, M. Zolghadri
{"title":"Optimal down sampling for ADC-based real-time simulation of basic power electronic converters","authors":"Mohsen Rezayati, M. Zolghadri","doi":"10.1109/PEDSTC.2017.7910333","DOIUrl":"https://doi.org/10.1109/PEDSTC.2017.7910333","url":null,"abstract":"In this paper, an optimal down sampler is used for Associate Discrete Circuit (ADC) based modeling and simulation of basic switching converters. Characteristic equation of backward Euler based discrete model of the circuit is used to find the value for down sampling. Using ADC modeling, fixed admittance matrix can be achieved for modeling switching converters and using down sampler, additional switch and diode current oscillations are minimized. Real-time digital simulation of buck converter using ADC with down sampler method is implemented on a Field Programmable Gate Array (FPGA) and the results are those expected without additional numerical oscillations. Based on the place-and-route results from Xilinx ISE 13.1 targeting Spartan6 XC6SLX9 FPGA, hardware in the loop are carried out, and the results are present. Experimental results show a well accordance with what expected in an offline simulation.","PeriodicalId":414828,"journal":{"name":"2017 8th Power Electronics, Drive Systems & Technologies Conference (PEDSTC)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126233144","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
New symmetric cascaded multilevel inverter with reduced number of controlled devices and low blocked voltage by switches 新型对称级联多电平逆变器，控制器件数量少，开关阻断电压低
2017 8th Power Electronics, Drive Systems & Technologies Conference (PEDSTC) Pub Date : 1900-01-01 DOI: 10.1109/PEDSTC.2017.7910377
A. Gohari, A. Mosallanejad, E. Afjei
{"title":"New symmetric cascaded multilevel inverter with reduced number of controlled devices and low blocked voltage by switches","authors":"A. Gohari, A. Mosallanejad, E. Afjei","doi":"10.1109/PEDSTC.2017.7910377","DOIUrl":"https://doi.org/10.1109/PEDSTC.2017.7910377","url":null,"abstract":"In this paper, a new symmetric cascaded multilevel inverter with reduced number of controlled switches and the low blocked voltage by switches is presented. The proposed topology is based on the new module, which inherently produces negative levels and zero level. Each module generates 7 levels. As the number of the output voltage levels or the magnitude of the output voltage increase, the maximum value of blocked voltage of the switches does not increase. The simulation results of this inverter are performed for a 19-level inverter by using MATLAB/Simulink to verify the performance of the proposed topology. Finally, the proposed inverter is compared with other topologies to illustrate the merit of this topology.","PeriodicalId":414828,"journal":{"name":"2017 8th Power Electronics, Drive Systems & Technologies Conference (PEDSTC)","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128214606","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 new closed-loop voltage model flux observer for sensorless DTC method 一种用于无传感器直接转矩控制的新型闭环电压模型磁链观测器
2017 8th Power Electronics, Drive Systems & Technologies Conference (PEDSTC) Pub Date : 1900-01-01 DOI: 10.1109/PEDSTC.2017.7910405
A. Aliaskari, S. Davari
{"title":"A new closed-loop voltage model flux observer for sensorless DTC method","authors":"A. Aliaskari, S. Davari","doi":"10.1109/PEDSTC.2017.7910405","DOIUrl":"https://doi.org/10.1109/PEDSTC.2017.7910405","url":null,"abstract":"Direct torque control (DTC) is a well-known method for ac induction motor (IM) drive systems. This approach is based on estimating stator flux and torque. So, accurate flux estimation is one of the fundamental key components of DTC drives. In this paper, an improved stator flux estimation technique based on the voltage model with stator flux and stator current errors as feedbacks is introduced. The goal of the novel observer is compensating the conventional voltage model based flux observer shortcomings such as, integration drift and integrator saturation problems. In proposed reduced-order flux observer, stator flux and current errors are applied to the integrator through static gains in order to shift poles of the observer transfer function to the left in the complex plane. So, the stability of the flux observer and consequently the DTC operation is improved. The robustness and dynamic performance of the novel observer are evaluated by means of simulations under critical loads.","PeriodicalId":414828,"journal":{"name":"2017 8th Power Electronics, Drive Systems & Technologies Conference (PEDSTC)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121459890","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
Optimal design of medium-frequency transformers for solid-state transformer applications 固态变压器中频变压器的优化设计
2017 8th Power Electronics, Drive Systems & Technologies Conference (PEDSTC) Pub Date : 1900-01-01 DOI: 10.1109/PEDSTC.2017.7910407
H. Beiranvand, E. Rokrok, B. Rezaeealam, Amit Kumar
{"title":"Optimal design of medium-frequency transformers for solid-state transformer applications","authors":"H. Beiranvand, E. Rokrok, B. Rezaeealam, Amit Kumar","doi":"10.1109/PEDSTC.2017.7910407","DOIUrl":"https://doi.org/10.1109/PEDSTC.2017.7910407","url":null,"abstract":"One of the most challenging problems of the electrical engineering in recent years is to replace conventional low-frequency distribution transformers with Solid-State Transformers (SSTs). The SST advantages make future smart grids flexible and cost effective. However, due to some main drawbacks such as low efficiency, it is not adopted in the distribution systems yet. In this paper, optimal design of Medium Frequency Transformers (MFTs) for a 20/0.4 kV 315 kVA solid-state transformer is done. The objective is to maximize the efficiency (η) and the power density (ρ), and to minimize weight of the MFT. The designed MFT reaches the efficiency > %99.70 and the power density > 13 kW/dm3.","PeriodicalId":414828,"journal":{"name":"2017 8th Power Electronics, Drive Systems & Technologies Conference (PEDSTC)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114311203","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
Optimal design of a Hybrid Excited Doubly Salient Permanent Magnet generator for wind turbine application 风力发电用混合励磁双凸极永磁发电机的优化设计
2017 8th Power Electronics, Drive Systems & Technologies Conference (PEDSTC) Pub Date : 1900-01-01 DOI: 10.1109/PEDSTC.2017.7910344
M. Cheraghi, Mehran Karimi
{"title":"Optimal design of a Hybrid Excited Doubly Salient Permanent Magnet generator for wind turbine application","authors":"M. Cheraghi, Mehran Karimi","doi":"10.1109/PEDSTC.2017.7910344","DOIUrl":"https://doi.org/10.1109/PEDSTC.2017.7910344","url":null,"abstract":"In this paper, a Hybrid Excited Doubly Salient Permanent Magnet (HEDSPM) generator is investigated and optimized. Generator structure is similar to Doubly Salient Permanent Magnet (DSPM) machine which Permanent Magnets (PMs) are located in stator as main excitation. According to requirement of generator for operating at low speeds, its performance should be suitable for direct coupling to the planned turbine. Due to nature of PM excitation, there is no possibility of controlling the air gap flux density which is a major disadvantage of this type of generators. Accordingly, direct current excitation winding is added to stator assembly. In this paper initially, generator performance and process of voltage inducing along with magnetic field control are discussed. Then, the most appropriate operating point of designing is found by genetic algorithm technique and optimal specification of generator is obtained. The optimized generator is simulated using 2-Dimensional Finite Element Method (2D-FEM) and lastly, results are given to verify the validity of proposed analysis.","PeriodicalId":414828,"journal":{"name":"2017 8th Power Electronics, Drive Systems & Technologies Conference (PEDSTC)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130100302","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
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