2015 IEEE International Electric Machines & Drives Conference (IEMDC)最新文献_第6页

Diagnosis of stator short-circuit faults in series and parallel winding connections of closed-loop controlled PMSMs 闭环控制永磁同步电动机串并联绕组连接定子短路故障诊断

2015 IEEE International Electric Machines & Drives Conference (IEMDC) Pub Date : 2015-05-10 DOI: 10.1109/IEMDC.2015.7409243

Jiangbiao He, A. Fatemi, N. Demerdash, D. Ionel

{"title":"Diagnosis of stator short-circuit faults in series and parallel winding connections of closed-loop controlled PMSMs","authors":"Jiangbiao He, A. Fatemi, N. Demerdash, D. Ionel","doi":"10.1109/IEMDC.2015.7409243","DOIUrl":"https://doi.org/10.1109/IEMDC.2015.7409243","url":null,"abstract":"Stator winding short-circuit faults are among the most common faults that could occur in permanent magnet synchronous machines (PMSM). Therefore, on-line diagnosis of incipient stator winding short-circuit faults plays an important role contributing to the safe operation of PMSMs. However, the efficacy of known diagnostic methods varies with the types of stator winding configurations in PMSMs. This paper compares the effectiveness of diagnosis of stator winding short-circuit faults in series and parallel winding connections of PMSMs, with the same interior permanent-magnet rotor configuration. Two existing diagnostic methods have been applied to detect the severity of stator short-circuit faults happening in both series and parallel winding connection in PMSMs. Simulation analysis has been carried out in ANSYS Maxwell to compare the severity of magnetic saturation caused by equivalent short-circuit fault in series and parallel winding connected PMSMs. Experimental results lead to the conclusion that PMSMs with parallel winding connections can mask the influence of such stator short-circuit faults under certain circumstances, and thus it is more challenging to detect such incipient faults in parallel-winding-connected PMSM in comparison with series-winding-connected PMSMs.","PeriodicalId":6477,"journal":{"name":"2015 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"2 1","pages":"1387-1393"},"PeriodicalIF":0.0,"publicationDate":"2015-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87133338","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 sensorless speed estimation in wound rotor induction machines using a dichotomous search algorithm 基于二分类搜索算法的绕线转子感应电机无传感器实时速度估计

2015 IEEE International Electric Machines & Drives Conference (IEMDC) Pub Date : 2015-05-10 DOI: 10.1109/IEMDC.2015.7409189

K. Tshiloz, S. Djukanović, S. Djurović

引用次数: 4

Fault diagnosis and condition monitoring of bearing using multisensory approach based fuzzy-logic clustering 基于模糊逻辑聚类的多感官轴承故障诊断与状态监测

2015 IEEE International Electric Machines & Drives Conference (IEMDC) Pub Date : 2015-05-10 DOI: 10.1109/IEMDC.2015.7409247

Elham Pazouki, Seungdeog Choi

引用次数: 8

Examination of an axial-gap generator with ferrite permanent magnets realizing miniaturization and high output power of engine generators 实现发动机发电机小型化和高输出功率的铁氧体永磁体轴向间隙发电机的试验研究

2015 IEEE International Electric Machines & Drives Conference (IEMDC) Pub Date : 2015-05-10 DOI: 10.1109/IEMDC.2015.7409075

Ayato Nihonyanagi, M. Takemoto, S. Ogasawara

{"title":"Examination of an axial-gap generator with ferrite permanent magnets realizing miniaturization and high output power of engine generators","authors":"Ayato Nihonyanagi, M. Takemoto, S. Ogasawara","doi":"10.1109/IEMDC.2015.7409075","DOIUrl":"https://doi.org/10.1109/IEMDC.2015.7409075","url":null,"abstract":"In general engine generators, the engine and generator are separate units connected by a mechanical coupling. This tends to increase the package size of general engine generators. In this paper, we are able to achieve miniaturization and high output power of the generator by adopting an axial-gap structure through using ferrite permanent magnets. At the same time, the package size is reduced dramatically by integrating the axial-gap generator into the engine. This paper also discusses methods for reducing the eddy current losses that occur in the windings due to the open-slot structure of the stator core and occur in the rotor support component. By using results from three-dimensional finite element analysis, we show that the eddy current loss that occurs in the windings is reduced by using appropriate methods to wind the coils with rectangular wires. In addition, the eddy current loss that occurs in the rotor support component is decreased by appropriately selecting the material and changing the shape of the component. Experimental results show that the studied structure is effective for realizing miniaturization and high output power of the generator, as well as for decreasing the package size of the engine generator.","PeriodicalId":6477,"journal":{"name":"2015 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"1 1","pages":"300-307"},"PeriodicalIF":0.0,"publicationDate":"2015-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91004181","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

Permanent magnet motors capable of pole-changing without changing the connection of the windings for high efficiency 永磁电机可以在不改变绕组连接的情况下换极，效率高

2015 IEEE International Electric Machines & Drives Conference (IEMDC) Pub Date : 2015-05-10 DOI: 10.1109/IEMDC.2015.7409100

K. Sakai, K. Matsuda, N. Yuzawa

引用次数: 6

Efficiency oriented design guidelines for a magnetohydrodynamic generator system 磁流体动力发电机系统的效率导向设计准则

2015 IEEE International Electric Machines & Drives Conference (IEMDC) Pub Date : 2015-05-10 DOI: 10.1109/IEMDC.2015.7409213

E. Cosoroaba, B. Fahimi

{"title":"Efficiency oriented design guidelines for a magnetohydrodynamic generator system","authors":"E. Cosoroaba, B. Fahimi","doi":"10.1109/IEMDC.2015.7409213","DOIUrl":"https://doi.org/10.1109/IEMDC.2015.7409213","url":null,"abstract":"Magnetohydrodynamic power generation (MHDG) was a thriving field of research in the 1960s but low efficiency and difficulty to reach desired operating points (high temperature) discouraged the investment of further efforts in the matter. Nowadays technological advances such as superconducting electromagnets (with very low power consumption for higher overall efficiency), power electronics (to enable harvesting and processing of current intensive DC power for any application), and powerful multiphysics simulation software, call for a reassessment of this power generation method. The aim of this paper is to deliver a realistic analysis of the competitiveness of MHDG as well as the possibilities offered by design variables to improve its attributes. Finite element analysis offers an improved understanding of field and flow distribution as well as the power density generated within the fluid channel. Analytical energy efficiency determination is completed for two different fluids as well as a sensitivity study of influential design factors. Furthermore a power output/cost comparison between MHD-systems operating with combustion gasses and liquid copper is carried out to offer a complete assessment of MHDG.","PeriodicalId":6477,"journal":{"name":"2015 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"55 1","pages":"1197-1201"},"PeriodicalIF":0.0,"publicationDate":"2015-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73569446","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: 0

Effects of an electromagnetic shield and armature teeth on the short-circuit performance of a direct drive superconducting generator for 10 MW wind turbines 电磁屏蔽和电枢齿对10mw风力发电机直接驱动超导发电机短路性能的影响

2015 IEEE International Electric Machines & Drives Conference (IEMDC) Pub Date : 2015-05-10 DOI: 10.1109/IEMDC.2015.7409137

Dong Liu, H. Polinder, A. Abrahamsen, J. Ferreira

{"title":"Effects of an electromagnetic shield and armature teeth on the short-circuit performance of a direct drive superconducting generator for 10 MW wind turbines","authors":"Dong Liu, H. Polinder, A. Abrahamsen, J. Ferreira","doi":"10.1109/IEMDC.2015.7409137","DOIUrl":"https://doi.org/10.1109/IEMDC.2015.7409137","url":null,"abstract":"To reduce the cost of energy of offshore wind energy conversion, large individual wind turbines of 10 MW or higher power levels are drawing more attention and expected to be desirable. Conventional wind generator systems would be rather large and costly if scaled up to 10 MW. Direct drive superconducting generators have been proposed to reduce the generator size, because the electrical machines with superconducting windings are capable of achieving a higher torque density. However, a superconducting machine is likely to produce an excessive torque during a short circuit because of its small reactance. An electromagnetic (EM) shield between the rotor and the stator as well as iron or non-magnetic composite (NMC) armature teeth affects the sub-transient reactance of a superconducting machine so that they play a role in the short-circuit performance of a superconducting wind generator. This paper presents a 10 MW superconducting generator design and studies the effects of material, thickness and position of an EM shield and the effects of NMC and iron armature teeth on the torque and the field current density during a three-phase short circuit at the generator terminal. One result shows that the short circuit torque is not able to be effectively reduced by varying the EM shield and the armature tooth material. The other result shows that the field current density is likely to exceed its critical value during a short circuit although the EM shield material and the armature tooth material take some effect.","PeriodicalId":6477,"journal":{"name":"2015 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"74 1","pages":"709-714"},"PeriodicalIF":0.0,"publicationDate":"2015-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90593828","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: 8

A finite control set model predictive direct torque control for the PMSM with MTPA operation and torque ripple minimization 基于MTPA和转矩脉动最小化的永磁同步电机有限控制集预测直接转矩控制

2015 IEEE International Electric Machines & Drives Conference (IEMDC) Pub Date : 2015-05-10 DOI: 10.1109/IEMDC.2015.7409152

Qian Liu, K. Hameyer

{"title":"A finite control set model predictive direct torque control for the PMSM with MTPA operation and torque ripple minimization","authors":"Qian Liu, K. Hameyer","doi":"10.1109/IEMDC.2015.7409152","DOIUrl":"https://doi.org/10.1109/IEMDC.2015.7409152","url":null,"abstract":"In this paper, a Lyapunov based finite control set model predictive direct torque control for the permanent magnet synchronous machine (PMSM) is proposed. In the proposed control scheme, the finite control set prediction and the Lyapunov theory are combined to minimize the torque ripple. The 8 voltage vectors of the 2-level converter are utilized as a finite control set for the torque prediction of the PMSM. A cost function considering the torque error, the Maximum Torque per Ampere (MTPA) operation and the current limitation is introduced. Comparing to the conventional finite control set predictive control, the dominant part of the cost function is utilized as a Lyapunov function to estimate the duty cycle of each voltage vector. An optimum voltage can be obtained by the optimum voltage vector from the 8 vectors and their duty cycles. A small sampling frequency and a fixed switching frequency can be realized when compared to the conventional finite set model predictive control. In the end, the simulation and experimental results validate the performance of the proposed control scheme.","PeriodicalId":6477,"journal":{"name":"2015 IEEE International Electric Machines & Drives Conference (IEMDC)","volume":"2 1","pages":"804-810"},"PeriodicalIF":0.0,"publicationDate":"2015-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90642150","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

2D analytical model for estimation of eddy current loss in the magnets of IPM machines considering the reaction field of the induced eddy currents 考虑感应涡流反应场的IPM电机磁体涡流损耗二维分析模型

2015 IEEE International Electric Machines & Drives Conference (IEMDC) Pub Date : 2015-05-10 DOI: 10.1109/IEMDC.2015.7409198

Milind Paradkar, J. Bocker

引用次数: 12

High speed SRM control considering the inductance profile of a flux-bridge rotor 考虑磁通桥转子电感分布的高速SRM控制

2015 IEEE International Electric Machines & Drives Conference (IEMDC) Pub Date : 2015-05-10 DOI: 10.1109/IEMDC.2015.7409276

J. Dang, J. Mayor, J. Restrepo, S. A. Semidey, R. Harley, T. Habetler

引用次数: 4