2011 IEEE Industry Applications Society Annual Meeting最新文献_第9页

Implementing and testing d − q WPT-based digital protection for micro-grid systems 基于d−q wpt的微电网数字保护实现与测试

2011 IEEE Industry Applications Society Annual Meeting Pub Date : 2011-11-10 DOI: 10.1109/IAS.2011.6074471

S. Saleh, R. Ahshan, M. Rahman, M. A. Khaizaran, B. Alsayed

{"title":"Implementing and testing d − q WPT-based digital protection for micro-grid systems","authors":"S. Saleh, R. Ahshan, M. Rahman, M. A. Khaizaran, B. Alsayed","doi":"10.1109/IAS.2011.6074471","DOIUrl":"https://doi.org/10.1109/IAS.2011.6074471","url":null,"abstract":"This paper introduces an implementation procedure and performance testings of a wavelet packet transform (WPT)-based digital protection for micro-grid systems. This digital protection is structured for detecting and classifying faults based on the values of the WPT coefficients of the high frequency sub-bands present in the d − q-axis current components. The WPT coefficients are determined using the Daubechies db4 wavelet basis functions, which are found optimal for analyzing transient disturbances likely to occur in power systems and electric machines. The proposed digital protection is implemented for experimental performance testing on a test micro-grid system that is constructed as a laboratory scale of an actual micro-grid system located in Fermeuse, Newfoundland, Canada. Several transient disturbances occurring in different parts of the test micro-grid system are experimentally investigated. Performance results demonstrate significant capabilities of the d − q WPT-based digital protection for accurate and reliable detection and classification of fault conditions, along with fast response to classified faults.","PeriodicalId":268988,"journal":{"name":"2011 IEEE Industry Applications Society Annual Meeting","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124534268","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: 18

Distribution of electric potential at the surface of corona-charged non-woven fabrics 带电晕的非织造布表面电位分布

2011 IEEE Industry Applications Society Annual Meeting Pub Date : 2011-11-10 DOI: 10.1109/IAS.2011.6074279

M. Plopeanu, L. Dascalescu, B. Yahiaoui, A. Antoniu, M. Hulea, P. Notingher

引用次数: 4

A sensorless induction motor drive using a least mean square speed estimator and the matrix converter 采用最小均方速度估计器和矩阵变换器的无传感器感应电动机驱动

2011 IEEE Industry Applications Society Annual Meeting Pub Date : 2011-11-10 DOI: 10.1109/IAS.2011.6074309

E. A. Mahmoud, Hussien F. Soliman, M. Elbuluk

{"title":"A sensorless induction motor drive using a least mean square speed estimator and the matrix converter","authors":"E. A. Mahmoud, Hussien F. Soliman, M. Elbuluk","doi":"10.1109/IAS.2011.6074309","DOIUrl":"https://doi.org/10.1109/IAS.2011.6074309","url":null,"abstract":"This paper presents a novel least mean square (LMS) estimator for a sensor-less drive of a three phase induction motor. Also, the proposed system includes the use of the matrix converter instead of the two-level inverter to improve the estimator performance. The system studied consists of a three phase induction motor driven by a matrix converter, a hysteris current controller, and an indirect field oriented controller. Also, a proportional plus integral speed controller and the proposed speed estimator are used. The LMS estimator includes a step size factor (SSF). The value of the SSF affects the dynamic performance of the speed estimator. Different simulation results of the overall system are conducted to depict the dynamic performance of the induction motor including the effect of the SSF, used in the LMS estimator. The simulation results show that the low value of the SSF gives high estimation accuracy when the actual speed is nearly constant. Meanwhile, the estimated motor speed follows the actual value with a higher time lag during the speed change. On the other hand, the high step size value reduces the time lag during the speed change but reduces the estimation accuracy during the steady state. A variable LMS SSF is introduced to achieve both advantages of the low and high SSF. The simulation results show improvement in the dynamic performance of the estimator regarding the low time lag during the speed change and the high estimation accuracy during the steady state. The simulation results show excellent of the proposed estimator using LMS with matrix converter driven by variable SSF in reference speed tracking. The main advantage of this proposed estimator is reducing the mathematical calculation time while maintaining high estimation accuracy. This leads to using a slower processor and smaller memory which reduces the drive cost.","PeriodicalId":268988,"journal":{"name":"2011 IEEE Industry Applications Society Annual Meeting","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114297669","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

Dynamic performance of sensorless vector controlled multiple induction motor drive connected in parallel fed by single inverter 单逆变器并联无传感器矢量控制多电机驱动的动态特性

2011 IEEE Industry Applications Society Annual Meeting Pub Date : 2011-11-10 DOI: 10.1109/IAS.2011.6074312

Toru Inoue, S. Ito, K. Azegami, Y. Nakajima, K. Matsuse

引用次数: 15

Investigation of factors affecting the sustainability of arcs below 250V 250V以下影响电弧可持续性因素的研究

2011 IEEE Industry Applications Society Annual Meeting Pub Date : 2011-11-10 DOI: 10.1109/IAS.2011.6074423

M. Lang, K. Jones

引用次数: 3

Development of an improved mathematical model of the heating phase of thermoforming process 热成形过程加热阶段数学模型的改进

2011 IEEE Industry Applications Society Annual Meeting Pub Date : 2011-11-10 DOI: 10.1109/IAS.2011.6074343

M. Chy, B. Boulet

{"title":"Development of an improved mathematical model of the heating phase of thermoforming process","authors":"M. Chy, B. Boulet","doi":"10.1109/IAS.2011.6074343","DOIUrl":"https://doi.org/10.1109/IAS.2011.6074343","url":null,"abstract":"This paper presents an improved mathematical model to represent a more accurate relationship among inputs and outputs of the heating phase of the thermoforming process. The proposed state-space model of the heating phase of thermoforming process can present and explain some incidents which are impossible to explain using the existing model. The main purpose of the paper is to improve the quality of predictions of the system's output and state through more accurate evaluation of the inputs and system properties. First, the modeling is developed based on the heat transfer method and system's behaviour. Then, a series of specialized experimental data were compared with the simulation data obtained from the developed model to validate it. All three kind of heat transfer methods (conduction, convection and radiation) are considered in the development of the model of a thermoforming machine. The proposed state space model is simulated using a Simulink model to compare with real time results. The input output relationship of the proposed model almost accurately follows the real time relationship of the inputs and outputs at different operating conditions. The proposed model gives the improved results compared to the existing model with the real time experimental data even there was some discrepancy of the existed model result with the real time data. The accuracy of the proposed model is evidenced by the results.","PeriodicalId":268988,"journal":{"name":"2011 IEEE Industry Applications Society Annual Meeting","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126352208","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

Parameter identification for an industrial plant with in-house generators 带有内部发电机的工业厂房的参数识别

2011 IEEE Industry Applications Society Annual Meeting Pub Date : 2011-11-10 DOI: 10.1109/IAS.2011.6074401

Chin-Chu Tsai, Weijen Lee, Shun-Hsien Huang, John Adams

{"title":"Parameter identification for an industrial plant with in-house generators","authors":"Chin-Chu Tsai, Weijen Lee, Shun-Hsien Huang, John Adams","doi":"10.1109/IAS.2011.6074401","DOIUrl":"https://doi.org/10.1109/IAS.2011.6074401","url":null,"abstract":"This paper proposes a new identification process for solving generator parameter identification problem for industrial plants with co-generation facilities by using data from Phasor Measurement Unit (PMU). First of all, a seamless hybrid dynamic method is proposed to implement in commercially available software to realize the equivalent of an external-system outside the buses of PMU boundary. Then, the trajectory sensitivity is adopted to screen out the key parameters. Finally, a high dimension optimization algorithm, Simultaneous Perturbation Stochastic Approximation (SPSA) is used to compute a set of model parameters that provide a best fit between measurements and simulation response. This approach is based on ISO's view that only PMU measurement data is known, models are unchangeable and condition of system during disturbance is uncertain. The effectiveness and feasibility of the proposed process were demonstrated by processing data from newly installed generator unit in ERCOT system. The experiment showed encouraging results, verifying that the proposed approach was capable of identify parameters with better accuracy.","PeriodicalId":268988,"journal":{"name":"2011 IEEE Industry Applications Society Annual Meeting","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116577977","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

Multi-rates fuel cell emulation with spatial reduced real-time fuel cell modelling 多速率燃料电池仿真与空间缩小实时燃料电池建模

2011 IEEE Industry Applications Society Annual Meeting Pub Date : 2011-11-10 DOI: 10.1109/IAS.2011.6074301

Fei Gao, D. Chrenko, B. Blunier, D. Bouquain, A. Miraoui

引用次数: 4

Selection of low voltage switching and protection devices in wind power generators 风力发电机组低压开关及保护装置的选择

2011 IEEE Industry Applications Society Annual Meeting Pub Date : 2011-11-10 DOI: 10.1109/IAS.2011.6074477

A. Fidigatti, P. Baroncelli, M. Carminati, E. Ragaini

引用次数: 3

Vision-based technique for periodical defect detection in hot steel strips 基于视觉的热轧带钢缺陷周期性检测技术

2011 IEEE Industry Applications Society Annual Meeting Pub Date : 2011-11-10 DOI: 10.1109/IAS.2011.6074384

F. Bulnes, R. Usamentiaga, D. García, J. Molleda, J. Rendueles

引用次数: 6