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Proceedings of IEEE Pulp and Paper Industry Conference最新文献

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An introduction to high resolution patterned magnetoresistive sensors and their application in digital tachometers
Proceedings of IEEE Pulp and Paper Industry Conference Pub Date : 1994-06-20 DOI: 10.1109/PAPCON.1994.324481
K. L. Dickinson
{"title":"An introduction to high resolution patterned magnetoresistive sensors and their application in digital tachometers","authors":"K. L. Dickinson","doi":"10.1109/PAPCON.1994.324481","DOIUrl":"https://doi.org/10.1109/PAPCON.1994.324481","url":null,"abstract":"High resolution magnetoresistive digital tachometers have recently been introduced to the pulp and paper industry. This industry, by its own admission, has been technologically conservative due to the high cost of down time for equipment failure. In spite of this conservatism, high resolution patterned magnetoresistive (MR) digital tachometers have very quickly gained acceptance with both the motor and drive manufacturers as well as the end user. The combination of this sensor and a magnetic pulse wheel allows five times the sensitivity of previous magnetic technologies utilizing a Hall effect sensor and gear tooth wheels. This technology, coupled in an innovative mechanical and electrical digital tachometer design, allows the use of interchangeable sensor modules, enhancing ease of maintenance and serviceability for mill personnel. The unique properties of the MR sensor/magnetic pulse wheel combination result in a high resolution digital tachometer with a high degree of immunity to environmental contamination. This improved reliability is extremely important in many mill applications. The purpose of this paper is to introduce this technology and to explain its attributes for usage in the pulp and paper industry.<<ETX>>","PeriodicalId":269467,"journal":{"name":"Proceedings of IEEE Pulp and Paper Industry Conference","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129994509","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
Fabricated aluminum rotor construction for induction motors 用于感应电机的铝制转子结构
Proceedings of IEEE Pulp and Paper Industry Conference Pub Date : 1994-06-20 DOI: 10.1109/PAPCON.1994.324505
E. C. Hartung
{"title":"Fabricated aluminum rotor construction for induction motors","authors":"E. C. Hartung","doi":"10.1109/PAPCON.1994.324505","DOIUrl":"https://doi.org/10.1109/PAPCON.1994.324505","url":null,"abstract":"The selection of material for induction motor rotor conductors is an old question and has been the subject of numerous papers and other literature for many years. This paper presents a new process being used in the construction of aluminum conductor rotors and reviews rotor construction from a slightly different point of view. The comparison is viewed using simple engineering concepts to illustrate the value of fabricated aluminum construction. The results of this new process have been impressive, particularly for two-pole motors, making fabricated aluminum construction the designer's choice.<<ETX>>","PeriodicalId":269467,"journal":{"name":"Proceedings of IEEE Pulp and Paper Industry Conference","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125756147","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
Power quality issues-standards and guidelines 电能质量问题。标准和指南
Proceedings of IEEE Pulp and Paper Industry Conference Pub Date : 1994-06-20 DOI: 10.1109/PAPCON.1994.324501
W. Reid
{"title":"Power quality issues-standards and guidelines","authors":"W. Reid","doi":"10.1109/PAPCON.1994.324501","DOIUrl":"https://doi.org/10.1109/PAPCON.1994.324501","url":null,"abstract":"As a result of the wide ranging addition of electronically controlled equipment within the last five to ten years, the lack of industry standards and application criteria in the area of power supply quality has become very evident. This paper outlines the significant factors associated with power quality by summarizing the key considerations, the relevant standards, the areas where standards are being developed, and useful application guidelines. Power quality is discussed here in terms of three major categories: system disturbances; harmonic distortion; and grounding.<<ETX>>","PeriodicalId":269467,"journal":{"name":"Proceedings of IEEE Pulp and Paper Industry Conference","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129494981","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: 166
Nonintrusive PID auto-tuning using dynamic modeling technology 采用动态建模技术的非侵入式PID自整定
Proceedings of IEEE Pulp and Paper Industry Conference Pub Date : 1994-06-20 DOI: 10.1109/PAPCON.1994.324484
G. Hassell, R. E. Harper
{"title":"Nonintrusive PID auto-tuning using dynamic modeling technology","authors":"G. Hassell, R. E. Harper","doi":"10.1109/PAPCON.1994.324484","DOIUrl":"https://doi.org/10.1109/PAPCON.1994.324484","url":null,"abstract":"Dynamic modeling technology uses a model based predictive and adaptive algorithm for continuous process control. The technology was developed two years ago and is available in at least one commercially available product. This product has been used successfully on several difficult industrial control applications. This paper covers an application of the dynamic modeling technology (DMT) algorithm for tuning proportional, integral and derivative (PID) controllers.<<ETX>>","PeriodicalId":269467,"journal":{"name":"Proceedings of IEEE Pulp and Paper Industry Conference","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127358351","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
Torsional dynamics of AC electrical machines and systems 交流电机和系统的扭转动力学
Proceedings of IEEE Pulp and Paper Industry Conference Pub Date : 1994-06-20 DOI: 10.1109/PAPCON.1994.324478
E. F. Merrill
{"title":"Torsional dynamics of AC electrical machines and systems","authors":"E. F. Merrill","doi":"10.1109/PAPCON.1994.324478","DOIUrl":"https://doi.org/10.1109/PAPCON.1994.324478","url":null,"abstract":"This paper discusses the transfer of power between electrical machines and the connected mechanical equipment. Power flow through induction and synchronous machines is compared. These principles are used to explain torsional vibration and synchronous motor starting effects. This is a qualitative treatment intended to provide an understanding of the physical concepts involved.<<ETX>>","PeriodicalId":269467,"journal":{"name":"Proceedings of IEEE Pulp and Paper Industry Conference","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131408910","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
Upgrade of a paper mill power distribution system 某造纸厂配电系统改造
Proceedings of IEEE Pulp and Paper Industry Conference Pub Date : 1994-06-20 DOI: 10.1109/PAPCON.1994.324494
L.S. Kirek, M. Woodman
{"title":"Upgrade of a paper mill power distribution system","authors":"L.S. Kirek, M. Woodman","doi":"10.1109/PAPCON.1994.324494","DOIUrl":"https://doi.org/10.1109/PAPCON.1994.324494","url":null,"abstract":"A utility capacity increase from 50 to 100 MVA was implemented in a large Kraft paper mill. All existing plant 15 kV switchgear and controls were replaced and a new tie line constructed during a nine month period prior to the utility increase. Electrical and process control rooms were built to house new switchgear and computer control equipment. All installation work was done during outages scheduled for other plant objectives. New switchgear installed consists of 42 cells of 1000 MVA class equipment. The control system includes operator workstations, supervisory PLC, and remote I/O racks. Breaker control, metering, and load shedding functions are performed by the control system.<<ETX>>","PeriodicalId":269467,"journal":{"name":"Proceedings of IEEE Pulp and Paper Industry Conference","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127758759","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
The importance of knowing available fault currents when specifying interrupting ratings for low voltage equipment 在指定低压设备的中断额定值时，了解可用故障电流的重要性
Proceedings of IEEE Pulp and Paper Industry Conference Pub Date : 1994-06-20 DOI: 10.1109/PAPCON.1994.324491
J. Toth
{"title":"The importance of knowing available fault currents when specifying interrupting ratings for low voltage equipment","authors":"J. Toth","doi":"10.1109/PAPCON.1994.324491","DOIUrl":"https://doi.org/10.1109/PAPCON.1994.324491","url":null,"abstract":"In a number of industrial plants, personnel responsible for the maintenance and design of the electrical systems have done an excellent job at sizing equipment for connected loads; however, on more than one occasion, those same personnel appeared to be unaware of the interrupting rating for low voltage equipment. This sometimes resulted in electrical systems that posed hazards to personnel and equipment due to the incorrect application of the protective equipment. Several aspects of proper equipment selection based on interrupting ratings are addressed.<<ETX>>","PeriodicalId":269467,"journal":{"name":"Proceedings of IEEE Pulp and Paper Industry Conference","volume":"15 24","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131839560","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
Installation and operating experience of a 350HP AC drive for harmonic reduction 350HP交流减谐变频器的安装和运行经验
Proceedings of IEEE Pulp and Paper Industry Conference Pub Date : 1994-06-20 DOI: 10.1109/PAPCON.1994.324496
W.J. Frey, J. Graf, B. Moore
{"title":"Installation and operating experience of a 350HP AC drive for harmonic reduction","authors":"W.J. Frey, J. Graf, B. Moore","doi":"10.1109/PAPCON.1994.324496","DOIUrl":"https://doi.org/10.1109/PAPCON.1994.324496","url":null,"abstract":"A variable frequency drive with sinusoidal line side power converter was applied to a new 350 hp induction motor driving a kiln at Mead Coated Board's Alabama paper mill in early 1994. The purpose of the installation was to replace an existing 250 hp motor and drive with a 350 hp unit. In addition with the GD4000 sinusoidal rectifier, the mill saw benefits in both line harmonic distortion and effects on system power factor. The results of this installation, including its effects on Mead's power system are described.<<ETX>>","PeriodicalId":269467,"journal":{"name":"Proceedings of IEEE Pulp and Paper Industry Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133627518","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
When you have to retrofit 15 kV switchgear 当你必须改造15千伏的开关柜时
Proceedings of IEEE Pulp and Paper Industry Conference Pub Date : 1994-06-20 DOI: 10.1109/PAPCON.1994.324490
M. Fish
{"title":"When you have to retrofit 15 kV switchgear","authors":"M. Fish","doi":"10.1109/PAPCON.1994.324490","DOIUrl":"https://doi.org/10.1109/PAPCON.1994.324490","url":null,"abstract":"The growth of paper mills has placed an ever greater demand on power distribution systems. Most mill power systems consist of switchgear designed in the 1950s and 60s. Much of this equipment is still in service, and is approaching the end of its useful life because of exceeding design safety limits, obsolescence, and wear out. This paper discusses the resolution of economic, engineering and logistical problems associated with the replacement of \"outgrown\" power distribution switchgear in a large integrated pulp and paper mill. Also discussed are the problems and concerns associated with retrofitting switchgear, including specifications, qualification and certification of vendors, installation and start-up. Special attention is given to bus bracing as a necessary consideration when upgrading older power distribution equipment.<<ETX>>","PeriodicalId":269467,"journal":{"name":"Proceedings of IEEE Pulp and Paper Industry Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133562849","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
A retrofit of an analog DC drive with digital control on a winder 在绕线机上采用数字控制的模拟直流驱动器的改造
Proceedings of IEEE Pulp and Paper Industry Conference Pub Date : 1994-06-20 DOI: 10.1109/PAPCON.1994.324480
R.C. Linzel, H. Long, P. Collings
{"title":"A retrofit of an analog DC drive with digital control on a winder","authors":"R.C. Linzel, H. Long, P. Collings","doi":"10.1109/PAPCON.1994.324480","DOIUrl":"https://doi.org/10.1109/PAPCON.1994.324480","url":null,"abstract":"Upgrading an analog DC drive to digital control does not always require a complete drive replacement. By retrofitting the existing power components with digital controls, all of the functionality of a modern digital DC drive can be achieved. Retrofitting can offer a significant cost savings over a complete drive replacement, since the existing power components, motors, power cables and cable support system may be reused. The benefits of an upgrade to digital control include improved drive response, simplified troubleshooting, elimination of tuning parameter \"drift\", greater flexibility in operating with different paper grades and orders, and an improved ability to control roll hardness. These benefits translate into reduced downtime, increased production efficiency and improved roll quality. The retrofit described in this case study has achieved the desired results in a cost-effective manner.<<ETX>>","PeriodicalId":269467,"journal":{"name":"Proceedings of IEEE Pulp and Paper Industry Conference","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117245839","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
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