Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting.最新文献

Novel three-phase high-quality multi-resonant rectifiers operating with zero-current-switching and constant switching frequency 零电流开关、恒开关频率的新型三相高质量多谐振整流器

Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting. Pub Date : 2004-11-01 DOI: 10.1109/IAS.2004.1348444

J. Shukla, B. G. Fernandes

引用次数: 1

Characterization of wire corona electrodes at various discharge gaps in electrostatic separation processes 静电分离过程中不同放电间隙下电线电晕电极的特性

Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting. Pub Date : 2004-11-01 DOI: 10.1109/IAS.2004.1348738

A. Iuga, A. Samuila, Marius Blajan, R. Beleca, R. Morar, L. Dascalescu

{"title":"Characterization of wire corona electrodes at various discharge gaps in electrostatic separation processes","authors":"A. Iuga, A. Samuila, Marius Blajan, R. Beleca, R. Morar, L. Dascalescu","doi":"10.1109/IAS.2004.1348738","DOIUrl":"https://doi.org/10.1109/IAS.2004.1348738","url":null,"abstract":"The development of new applications might impose the use of corona electrodes located at either smaller (s < 25 mm) or larger (s > 75 mm) distances from grounded electrodes than in \"classical\" electrostatic separators. The aim of the present paper is to characterize such less standard electrode systems. A first group of experiments carried out on a laboratory roll-type electrostatic separator (roll radius: 125 mm) enabled the measurement of current-voltage characteristics of a wire-type corona electrode. A full-wave rectifier, 0-75 kV, 0-6 mA, energized the electrode located at different distances from the grounded roll electrode. In a second group of experiments, the authors evaluated the \"pinning\" effect exerted by the electric image force on charged insulating particles processed in the same roll-type separator. This was found to depend on both the high-voltage level and the relative position of the electrodes, as they influence the local electric field strength and the intensity of the electro-aero-dynamic effects (corona wind). The set-up employed in the third group of experiments permitted the measurement the distribution of current density at the surface of a large plate electrode, located at different distances from a corona electrode. The experimental observations are discussed in relation with the results of numerical electric field simulations. They suggest the possibility of decreasing or increasing the distance between the electrodes, in response to the needs of various electrostatic separation applications (fine particles, large flakes...).","PeriodicalId":131410,"journal":{"name":"Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting.","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116629282","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

Effects of load on diagnosing broken bar faults in induction motors using the pendulous oscillation of the rotor magnetic field orientation 利用转子磁场方向的摆振分析负载对异步电动机断条故障诊断的影响

Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting. Pub Date : 2004-11-01 DOI: 10.1109/IAS.2004.1348491

B. Mirafzal, N. Demerdash

引用次数: 24

Sensorless control of PMSM drives using a combination of voltage model and HF signal injection 采用电压模型和高频信号注入相结合的永磁同步电机无传感器控制

Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting. Pub Date : 2004-11-01 DOI: 10.1109/IAS.2004.1348530

A. Piippo, M. Hinkkanen, J. Luomi

引用次数: 64

Low voltage DC supply dimmable ballast for 1 /spl times/ 36 W T8 lamp 低压直流电源可调光镇流器1 /spl次/ 36w T8灯

Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting. Pub Date : 2004-11-01 DOI: 10.1109/IAS.2004.1348430

P. Green

引用次数: 0

Determination of effective air-gap length of reluctance synchronous motors from experimental data 从实验数据确定磁阻同步电动机有效气隙长度

Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting. Pub Date : 2004-11-01 DOI: 10.1109/IAS.2004.1348392

P. Neti, S. Nandi

{"title":"Determination of effective air-gap length of reluctance synchronous motors from experimental data","authors":"P. Neti, S. Nandi","doi":"10.1109/IAS.2004.1348392","DOIUrl":"https://doi.org/10.1109/IAS.2004.1348392","url":null,"abstract":"Because of many advantages of reluctance synchronous motors (RSM) over other motors, their usage in AC drives have been gaining importance for many industry applications. The performance of RSM is greatly dependent on the effective air-gap lengths of the machine along its d and q axes. In this paper, an attempt has been made to obtain the effective air-gap lengths of the machine from the experimental values of direct and quadrature axis reactances by considering the higher permeance and winding space harmonics of a RSM. These reactances are then compared with the coefficients of the magnetizing inductances of the stator windings, obtained by using winding function approach (WFA), to determine the air-gaps. A comparative study has been carried out with different permeance and winding space harmonics. The q-axis air-gap length seems to be much more sensitive to the operating point and the leakage inductance compared to the d-axis air-gap length. Experimental values near no-load have been considered to minimize flux barrier effects, as WFA cannot simulate these effects without changing the length of the pole arc. The effective air-gaps of another salient pole synchronous machine with damper bars have also been determined and compared with various permeance and winding space harmonics, when run as a RSM (without field excitation). This machine did not have flux barriers and hence the results seem to be more accurate.","PeriodicalId":131410,"journal":{"name":"Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting.","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116529565","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

Implementation and calorimetric verification of models for wide speed range three-phase induction motors for use in washing machines 洗衣机用宽转速范围三相感应电动机模型的实施和量热验证

Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting. Pub Date : 2004-11-01 DOI: 10.1109/IAS.2004.1348824

P. Malliband, R. McMahon

引用次数: 11

System management strategy to monitor insulated power cables 绝缘电力电缆监控的系统管理策略

Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting. Pub Date : 2004-11-01 DOI: 10.1109/IAS.2004.1348708

G. Parise, L. Martirano

{"title":"System management strategy to monitor insulated power cables","authors":"G. Parise, L. Martirano","doi":"10.1109/IAS.2004.1348708","DOIUrl":"https://doi.org/10.1109/IAS.2004.1348708","url":null,"abstract":"For the operation programs and preventive maintenance a fundamental focus is to monitor the efficiency of components of a distribution system. A right goal for the maintenance is the evaluation of synthetic parameters suitable to furnish, after each measuring time interval, the updated check up of the maintaining components. For the distribution circuits the paper suggests a system management strategy SMS based on the evaluation of the insulated cables deterioration. To do it off line, the authors deals a practical and useful life calculation tool \"LCT\", evaluating a check up of the cable. When a supervisory control system is available, the LCT could be organized automatically like a device \"on line\" (CHD). Synthetically, the device suggested will count the losses of the life due to all the events of over and under temperatures both causing the protective device and doing not. The events without trip, that create a faster degradation of the insulation, in the actual maintenance program generally aren't computed nor signaled. The SMS could introduce and sponsor the operating approach for which the power cable operation has to be related to the actual life loss differently than the designing approach. Knowing the check-up of the power cables the system operators will can: -monitor the cables life loss; -optimize the cables efficiency; - upgrade the distribution system. A new scenario could be opened for a distribution system management culture.","PeriodicalId":131410,"journal":{"name":"Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting.","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114413978","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

Electrical discharge machining for sharpening diamond disks 电火花加工磨削金刚石盘

Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting. Pub Date : 2004-11-01 DOI: 10.1109/IAS.2004.1348453

J. Doval‐Gandoy, R. Pasandin, B. Fernández

引用次数: 2

Protection schemes for a dynamic voltage restorer 一种动态电压恢复器保护方案

Conference Record of the 2004 IEEE Industry Applications Conference, 2004. 39th IAS Annual Meeting. Pub Date : 2004-11-01 DOI: 10.1109/IAS.2004.1348787

S. Sliva, F.A. Eleuterio, A. de Souza Reis, B. Filho

引用次数: 7