Conference Record of 2006 Annual Pulp and Paper Industry Technical Conference最新文献

{"title":"Real-Time Web-Based System Monitoring","authors":"M. Branch, B. Bradley","doi":"10.1109/MIA.2007.322271","DOIUrl":"https://doi.org/10.1109/MIA.2007.322271","url":null,"abstract":"New techniques in software architecture and development have empowered users by giving them access to real-time plant data in a fluid and versatile environment. These solutions allow you to custom configure a control screen right from your Web browser with analog gauges, digital gauges, charts, spider charts and more. Data is sent in real-time from your PLCs directly to a central repository on the Internet, where trends and reports can be generated with the click of a button. This paper illustrates how such a flexible system can function through a case study in the oil and gas industry. The aim of such a system is to allow key decision makers easy access to personalized information that is necessary for them to make critical decisions","PeriodicalId":231751,"journal":{"name":"Conference Record of 2006 Annual Pulp and Paper Industry Technical Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2007-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115427817","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}

{"title":"Utilizing Infrared Sightglasses to Protect Against Arc-Flash Exposure","authors":"A.J. Holliday, J. Kay","doi":"10.1109/PAPCON.2006.1673784","DOIUrl":"https://doi.org/10.1109/PAPCON.2006.1673784","url":null,"abstract":"This paper explores the applicable standards currently in place in industry and assesses their impact on IR sightglass and port design, implementation and corresponding safety in use","PeriodicalId":231751,"journal":{"name":"Conference Record of 2006 Annual Pulp and Paper Industry Technical Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2006-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123916504","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}

{"title":"Power System Stabilizer Performance With Summing Point type Var/Power Factor Controllers","authors":"R. Schaefer, Kiyong Kim","doi":"10.1109/PAPCON.2006.1673777","DOIUrl":"https://doi.org/10.1109/PAPCON.2006.1673777","url":null,"abstract":"Var/power factor control for generators has often been the preferred operating control mode for pulp and paper power plants over voltage regulation to reduce the need for constant reactive power monitoring by plant operators. Today, for those machines located in the Western United States, the North American Reliability Council (NEPC) and Western Electric Co-coordinating Council (WECC) are ruling that machines rated more than 35 MVA or group of machines equal to or more than 75 MVA connected to the transmission grid through one transformer be operating in voltage regulating mode and be equipped with power system stabilizer to improve the transient stability of the system. The latest NERC and WECC standards do not allow for generators meeting these criteria to be operating in Var/power factor control. Over the years various types of Var/PF control have been provided. Two types of Var/PF controllers are available as described in IEEE 421.5. Type 1 Var/PF controller uses raise/lower signal based on generator output changes. The amount of raise/lower signal is a fixed voltage. The Var/PF controller of type 2 uses a PI controller, which changes a desired voltage setpoint smoothly in linear fashion. Both types are considered as a summing point type Var/PF controller. In this paper, the PSS performance is studied with type 2 Var/PF controller that does not have an undesirable PSS action caused by a sudden change in setpoint adjustment from the Var controller. The results illustrate that power system stabilizer performance is not deteriorated when the type 2 Var/PF control is implemented. This type of performance response can benefit pulp and paper mills who desire constant VAR/PF control but also requiring to meet the WECC regulation guidelines","PeriodicalId":231751,"journal":{"name":"Conference Record of 2006 Annual Pulp and Paper Industry Technical Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2006-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125978443","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}

{"title":"Integrated Protection and Control Systems with Continuous Self-Testing","authors":"M. Thompson","doi":"10.1109/PAPCON.2006.1673774","DOIUrl":"https://doi.org/10.1109/PAPCON.2006.1673774","url":null,"abstract":"The design of substation protection, metering, and control systems using integration technologies has been developing ever since the advent of microprocessor-based devices. Modern relays include many auxiliary functions beyond their primary function of power system protection. Local and remote metering, local and remote control and status reporting, alarm functions and annunciation, interlocking, oscillographic and sequence-of-event recording are all features that have been required in a substation protection, metering, and control system that can all be provided by modern protective relays when integration technologies are applied. A power system cannot be operated without protection, thus the protective relays are the foundation to build an integrated system upon. Integrated substation protection and control system design has not yet reached the maturity of traditional nonintegrated design architectures. One reason for this is the rapid change inherent in computer and communications technologies. However, if we apply well-developed concepts used for protection system design to the entire integrated protection, metering, and control system, we can create an inherently fault-tolerant and robust system- regardless of the integration technologies used. Unless properly designed, integrated systems can be designed such that inherent redundancies are lost. If the design is approached from the beginning with consideration for integrating protection, metering, and control upon a foundation of modern multifunction programmable relays, we can not only eliminate these deficiencies, we can create a system that has built-in continuous self-test features. We can extend the concept of continuous self-test, which we have enjoyed in the relays themselves, to the entire system. The design concepts discussed in this paper can make problems and failures, which would be hidden in a traditional design, readily apparent so that they can be corrected before undesired operation can occur. These features do not generally require increased cost; instead they are obtained by making use of the capabilities available in the powerful relays currently in use. This paper covers the general design architecture of a protection and control system using powerful multifunction programmable relays. It does not cover power system protection in detail, and it does not cover integration in detail. Rather, the focus of this paper is to discuss design concepts that will help the reader to design a fault-tolerant, robust protection and control system, with continuous self-test features, that takes advantage of the attributes of modern protective relays","PeriodicalId":231751,"journal":{"name":"Conference Record of 2006 Annual Pulp and Paper Industry Technical Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2006-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125623082","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}

{"title":"Testing and Certification of Medium Voltage Control Centers to Arc Resistant Standards","authors":"J. Kay","doi":"10.1109/PAPCON.2006.1673785","DOIUrl":"https://doi.org/10.1109/PAPCON.2006.1673785","url":null,"abstract":"Improved medium voltage control equipment designs, including enhanced structural protection systems, have continued to evolve in support of improved personnel protection. Recent changes to some standards, such as the NFPA-70E, have emphasized the need to look for improved safety compliance to mitigating the risks associated with the operation and maintenance of electrical equipment. The requirements for employee safe work practices have all targeted reducing the risks of electrical arc hazards. However arcs accompanied by explosions continue to occur in electrical systems. Factors such as inappropriate human interaction with the equipment, equipment malfunctions as a result of misuse or lack of regular maintenance or unforeseen events continue to contribute to the unexpected release of explosive electrical energy in the workplace. This paper outlines the details surrounding the testing of medium voltage (MV) control center equipment to permit it to be certified to present arc resistant standards. The intent of this paper is to improve the understanding of the dynamics of an arc fault and how new arc resistant equipment designs can reduce personnel from exposed to electrical arc hazards in industrial settings","PeriodicalId":231751,"journal":{"name":"Conference Record of 2006 Annual Pulp and Paper Industry Technical Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2006-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121858475","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}

{"title":"Arc Flash Hazard Calculations: Myths, Facts and Solutions","authors":"H. Tinsley, M. Hodder, A.M. Graham","doi":"10.1109/PAPCON.2006.1673787","DOIUrl":"https://doi.org/10.1109/PAPCON.2006.1673787","url":null,"abstract":"The scope of a typical arc flash hazard analysis often extends well beyond the conventional limits of a short circuit evaluation. When evaluating equipment such as motor control centers (MCCs) and bus ducts, each individual feeder circuit should be evaluated to determine the incident energy for the downstream protected locations. Depending on the impedance between the overcurrent protection and the downstream location considered, the arcing fault current may be reduced to the extent that the overcurrent device will respond relatively slowly. To evaluate every cable drop from a bus duct and every feeder circuit in an MCC requires extensive effort that is often avoided by implementing inaccurate assumptions and invalid shortcuts. As a result, this paper considers the possibility of limiting the required calculations by making accurate generalizations to identify a reduced number of circuits that merit a detailed analysis","PeriodicalId":231751,"journal":{"name":"Conference Record of 2006 Annual Pulp and Paper Industry Technical Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2006-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115796406","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}

{"title":"Effect of Protective Covers for TEFC Induction Motors Covered by Pulp","authors":"M. Valenzuela, J. Tapia, J. Rooks","doi":"10.1109/PAPCON.2006.1673773","DOIUrl":"https://doi.org/10.1109/PAPCON.2006.1673773","url":null,"abstract":"Pulp contamination affects motors in the tank area of pulp & paper machines, coating the inter-fin channels, partially blocking the air intake area, and producing motor overheating even for operation below rated condition. This paper reports testing performed that evaluates the benefits of using protective covers to prevent pulp fibers from reaching the inter-fin channels and air intake area. Evaluation is done with a TEFC motor fitted with thermocouples. Results show that as long as direct splashing over the air intake area during washing of the floor with hoses is avoided, protective covers fully protect the motors from the effects of pulp contamination","PeriodicalId":231751,"journal":{"name":"Conference Record of 2006 Annual Pulp and Paper Industry Technical Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2006-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121927709","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}

{"title":"Application of IEEE STD 519-1992 Harmonic Limits","authors":"T. Blooming, D. Carnovale","doi":"10.1109/PAPCON.2006.1673767","DOIUrl":"https://doi.org/10.1109/PAPCON.2006.1673767","url":null,"abstract":"IEEE Std 519-1992 is a useful document for understanding harmonics and applying harmonic limits in power systems. Despite many years of good use there is still some confusion about how to apply certain aspects of the standard. This paper discusses some of those, as well as related issues that are helpful in working with harmonic limits. There is considerable debate as to precisely how some elements of IEEE Std 519-1992 should be interpreted. This paper presents the authors' views on some of the more ambiguous elements of the standard and on the application of harmonic limits in general","PeriodicalId":231751,"journal":{"name":"Conference Record of 2006 Annual Pulp and Paper Industry Technical Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2006-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116231824","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}

{"title":"Engineering Selection for a Variable Speed Drive; Steam Turbine Drive or Electric Motor with VFD","authors":"W. Hopper","doi":"10.1109/PAPCON.2006.1673772","DOIUrl":"https://doi.org/10.1109/PAPCON.2006.1673772","url":null,"abstract":"This paper presents estimated equipment operating costs and energy consumption to compare a steam turbine drive and a VFD electric motor drive for two different drive systems. The author presented data and conclusions from an actual project that was engineered and installed several years ago. The author also presents data and make statements on several similar applications that are now being, or were recently, under investigation. It is expected that this paper presents facts of energy savings for the VFD option","PeriodicalId":231751,"journal":{"name":"Conference Record of 2006 Annual Pulp and Paper Industry Technical Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2006-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123531235","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}

{"title":"PLC-Based Turbine Governor System","authors":"P. Rock, T. Bauman, B. Granzin","doi":"10.1109/PAPCON.2006.1673776","DOIUrl":"https://doi.org/10.1109/PAPCON.2006.1673776","url":null,"abstract":"The governor system used by many pulp and paper facilities with steam power generation creates many challenges. Challenges such as inadequate response times; poor speed regulation; analog control drifting; high maintenance and support costs; expensive or unavailable parts; and extended lead times. Machine availability is affected and extended generator downtime may result. Governor replacement provides the solution to these problems. Advantages of upgrading to a PLC-based turbine governor system include: off-the-shelf control and hydraulic components; governor algorithm contained in PLC-based regulating system; governor system independent from lube oil system; reliable hydraulic proportional valve replaces flapper nozzle system; user-friendly interface provides control and monitoring and extensive alarming and diagnostics; open communication allows connection with existing mill distributed control system (DCS)","PeriodicalId":231751,"journal":{"name":"Conference Record of 2006 Annual Pulp and Paper Industry Technical Conference","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2006-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122846289","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}