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Proceedings of 1996 Canadian Conference on Electrical and Computer Engineering最新文献

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Thermal model based digital relaying algorithm for induction motor protection 基于热模型的感应电动机数字继电保护算法
Proceedings of 1996 Canadian Conference on Electrical and Computer Engineering Pub Date : 1996-05-26 DOI: 10.1109/CCECE.1996.548327
M. Abou-el-ela, A. Megahed, O. Malik
{"title":"Thermal model based digital relaying algorithm for induction motor protection","authors":"M. Abou-el-ela, A. Megahed, O. Malik","doi":"10.1109/CCECE.1996.548327","DOIUrl":"https://doi.org/10.1109/CCECE.1996.548327","url":null,"abstract":"Thermal models can be used to protect induction motors from excessive overheating resulting from overloading, failure to start, unbalance and frequent starting. Such a model is adopted for use in a relaying algorithm. The developed algorithm accurately calculates the change in motor temperature and hence, protects the motor from excessive overheating. The lab results, included in this paper, of motor temperature during a loading cycle show high correspondence with the established thermal model.","PeriodicalId":269440,"journal":{"name":"Proceedings of 1996 Canadian Conference on Electrical and Computer Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125514611","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: 23
Frequency of voltage sags at industrial and commercial sites in Canada 加拿大工业和商业场所电压跌落的频率
Proceedings of 1996 Canadian Conference on Electrical and Computer Engineering Pub Date : 1996-05-26 DOI: 10.1109/CCECE.1996.548242
D. Koval, M. B. Hughes
{"title":"Frequency of voltage sags at industrial and commercial sites in Canada","authors":"D. Koval, M. B. Hughes","doi":"10.1109/CCECE.1996.548242","DOIUrl":"https://doi.org/10.1109/CCECE.1996.548242","url":null,"abstract":"The occurrence of voltage sags (i.e. undervoltage conditions) on the primary and secondary sides of industrial facilities often disrupt continuous and noncontinuous industrial computer processes, a costly issue for society. Prior to 1990, very little information was available on the frequency of these incidents and their origins (i.e. did the voltage sag originate on the utility's system or within the industrial facilities electrical system?). In 1991, the Canadian Electrical Association took a proactive approach to power quality problems and initiated a three year \"Canadian National Power Quality Survey\" involving twenty-two utilities. This paper presents some of the survey results of the frequency of voltage sags at industrial sites monitored at their utilization voltage levels (e.g. 120, 347 V) and on the utility primary side of their facilities and discuss the implications as to the origins of voltage sags. The survey results provide a basic knowledge base for designing and utilizing voltage sag mitigating technologies.","PeriodicalId":269440,"journal":{"name":"Proceedings of 1996 Canadian Conference on Electrical and Computer Engineering","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131863429","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
Power transmission lines fault direction estimation using artificial neural networks 基于人工神经网络的输电线路故障方向估计
Proceedings of 1996 Canadian Conference on Electrical and Computer Engineering Pub Date : 1996-05-26 DOI: 10.1109/CCECE.1996.548263
M. Sanaye-Pasand, O. Malik
{"title":"Power transmission lines fault direction estimation using artificial neural networks","authors":"M. Sanaye-Pasand, O. Malik","doi":"10.1109/CCECE.1996.548263","DOIUrl":"https://doi.org/10.1109/CCECE.1996.548263","url":null,"abstract":"The direction of a fault on a power transmission line needs to be identified rapidly and correctly. To classify forward and backward faults on a given line, a neural network's abilities in pattern recognition and classification could be considered as a solution. To demonstrate the applicability of this solution, a neural network technique is employed to design two different fault direction estimators. Details of the design procedure and results of performance studies with the proposed networks are given and compared.","PeriodicalId":269440,"journal":{"name":"Proceedings of 1996 Canadian Conference on Electrical and Computer Engineering","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120886254","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: 10
A VLSI interval router for high-speed networks 用于高速网络的VLSI间隔路由器
Proceedings of 1996 Canadian Conference on Electrical and Computer Engineering Pub Date : 1996-05-26 DOI: 10.1109/CCECE.1996.548060
B. Christian, C.N. Zhang, R. Mason
{"title":"A VLSI interval router for high-speed networks","authors":"B. Christian, C.N. Zhang, R. Mason","doi":"10.1109/CCECE.1996.548060","DOIUrl":"https://doi.org/10.1109/CCECE.1996.548060","url":null,"abstract":"In this work, a VLSI wormhole router for scalable high-speed networks including 2-D mesh, nearest-neighbor, and n-cube interconnected networks has been developed and implemented. The router is deadlock-free and guarantees to form the shortest paths. This VLSI router has been implemented and fabricated by using 1.2 /spl mu/ CMOS4S standard cell library consisting of 65,000 gates. The performance of the VLSI router is measured and modeled.","PeriodicalId":269440,"journal":{"name":"Proceedings of 1996 Canadian Conference on Electrical and Computer Engineering","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133947198","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
High power GTO AC/DC current source converter with minimum switching frequency and maximum power factor 大功率GTO AC/DC电流源变换器，具有最小的开关频率和最大的功率因数
Proceedings of 1996 Canadian Conference on Electrical and Computer Engineering Pub Date : 1996-05-26 DOI: 10.1109/CCECE.1996.548104
Y. Xiao, B. Wu, F. Dewinter, R. Sotudeh
{"title":"High power GTO AC/DC current source converter with minimum switching frequency and maximum power factor","authors":"Y. Xiao, B. Wu, F. Dewinter, R. Sotudeh","doi":"10.1109/CCECE.1996.548104","DOIUrl":"https://doi.org/10.1109/CCECE.1996.548104","url":null,"abstract":"This paper presents a unique PWM switching pattern and a novel power factor control scheme for high power GTO AC/DC converters. This switching pattern has a switching frequency of 360 Hz, which is the lowest possible frequency to achieve 5th and 7th harmonic elimination and an adjustable DC output current simultaneously. Using both feedback and feedforward control techniques, the proposed power factor control scheme can keep the converter input power factor at unity or a maximum achievable value. Simulation and experimental results are given to confirm the proposed PWM pattern and power factor control scheme.","PeriodicalId":269440,"journal":{"name":"Proceedings of 1996 Canadian Conference on Electrical and Computer Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130941626","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: 16
An accurate software model for off-line assessment of a digital relay 数字式继电器脱机评估的精确软件模型
Proceedings of 1996 Canadian Conference on Electrical and Computer Engineering Pub Date : 1996-05-26 DOI: 10.1109/CCECE.1996.548258
P. McLaren, E. Dirks, R. Jayasinghe, I. Fernando, G. Swift, Z. Zhang
{"title":"An accurate software model for off-line assessment of a digital relay","authors":"P. McLaren, E. Dirks, R. Jayasinghe, I. Fernando, G. Swift, Z. Zhang","doi":"10.1109/CCECE.1996.548258","DOIUrl":"https://doi.org/10.1109/CCECE.1996.548258","url":null,"abstract":"A software model of a digital power system protection relay is added to an offline emtp (EMTDC) and is then subjected to the same waveforms as the actual relay. Its performance is measured against the performance of the actual relay and the accuracy of the model is assessed.","PeriodicalId":269440,"journal":{"name":"Proceedings of 1996 Canadian Conference on Electrical and Computer Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131257415","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
Improving the classification accuracy of automatic text processing systems using context vectors and back-propagation algorithms 利用上下文向量和反向传播算法提高自动文本处理系统的分类精度
Proceedings of 1996 Canadian Conference on Electrical and Computer Engineering Pub Date : 1996-05-26 DOI: 10.1109/CCECE.1996.548248
J. Farkas
{"title":"Improving the classification accuracy of automatic text processing systems using context vectors and back-propagation algorithms","authors":"J. Farkas","doi":"10.1109/CCECE.1996.548248","DOIUrl":"https://doi.org/10.1109/CCECE.1996.548248","url":null,"abstract":"We analyze some of the benefits of combining the context-vector representation of documents with the back-propagation paradigm for document classification. We discuss an implementation of this architecture, called NeuroFile, which combines automatic document classification with similarity-based, as well as Boolean retrieval facilities in a single electronic filing system. The quality of performance of NeuroFile is compared with an earlier system called NeuroClass. We show that NeuroFile achieves a 9% classification improvement over NeuroClass.","PeriodicalId":269440,"journal":{"name":"Proceedings of 1996 Canadian Conference on Electrical and Computer Engineering","volume":"215 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134152873","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
RADARSAT: image quality management and performance results RADARSAT:图像质量管理和性能结果
Proceedings of 1996 Canadian Conference on Electrical and Computer Engineering Pub Date : 1996-05-26 DOI: 10.1109/CCECE.1996.548028
S. Srivastava, T. Lukowski, R.B. Gray, N. Shepherd, R. K. Hawkins
{"title":"RADARSAT: image quality management and performance results","authors":"S. Srivastava, T. Lukowski, R.B. Gray, N. Shepherd, R. K. Hawkins","doi":"10.1109/CCECE.1996.548028","DOIUrl":"https://doi.org/10.1109/CCECE.1996.548028","url":null,"abstract":"The Canadian Earth observation satellite, RADARSAT, was launched in late 1995. The aim of this spaceborne SAR program is to provide operationally calibrated products. To enable calibration of RADARSAT data, the RADARSAT image data calibration system which includes RADARSAT precision transponders and two calibration workstations has been developed. Data from these point targets and diffuse target regions have been analyzed during the qualification phase. Results show that RADARSAT is meeting and exceeding its performance specifications.","PeriodicalId":269440,"journal":{"name":"Proceedings of 1996 Canadian Conference on Electrical and Computer Engineering","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132086154","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 set of design and realizability conditions for Bode-type variable-amplitude digital equalizers 提出了一套新的波德式变幅数字均衡器的设计和实现条件
Proceedings of 1996 Canadian Conference on Electrical and Computer Engineering Pub Date : 1996-05-26 DOI: 10.1109/CCECE.1996.548140
A. Fuller, B. Nowrouzian
{"title":"A new set of design and realizability conditions for Bode-type variable-amplitude digital equalizers","authors":"A. Fuller, B. Nowrouzian","doi":"10.1109/CCECE.1996.548140","DOIUrl":"https://doi.org/10.1109/CCECE.1996.548140","url":null,"abstract":"This paper presents a new set of realizability conditions for the design of Bode (1938) type variable-amplitude digital equalizers. The resulting realizability conditions take into account the stability of the variable-amplitude digital equalizer with regard to the possible range of values in the constituent variable multiplier. These realizability conditions are exploited and applied to the development of a pair of simple variable-amplitude digital equalizers associated with arbitrary prespecified shaping transfer functions. The frequency response of the resulting digital equalizers can be varied from that of the shaping transfer function to its inverse by varying the value of the variable multiplier.","PeriodicalId":269440,"journal":{"name":"Proceedings of 1996 Canadian Conference on Electrical and Computer Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130173721","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
Women in engineering in Canada: the next challenges 加拿大工程领域的女性:下一个挑战
Proceedings of 1996 Canadian Conference on Electrical and Computer Engineering Pub Date : 1996-05-26 DOI: 10.1109/CCECE.1996.548113
M. Frize
{"title":"Women in engineering in Canada: the next challenges","authors":"M. Frize","doi":"10.1109/CCECE.1996.548113","DOIUrl":"https://doi.org/10.1109/CCECE.1996.548113","url":null,"abstract":"Enrolments of women in engineering have increased steadily (at the rate of 1 percent per year) for the past five or six years. We may reach a plateau, or see a decline, if the obstacles that are more systemic in nature and embedded in the culture, the curriculum and the teaching style, are not removed. The workplace environment is also a major factor and issues such as accommodating career and family (for both sexes), the elimination of harassment, sexism, and discrimination will have a positive impact on the retention of women who have chosen to be engineers. Women must also participate actively in the governance of the profession if it is to reflect their perspectives and respond to their needs.","PeriodicalId":269440,"journal":{"name":"Proceedings of 1996 Canadian Conference on Electrical and Computer Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1996-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131341088","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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