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| 1 | 柔性直流配电网故障识别与隔离策略综述显示文摘随着技术的发展,柔性直流配电网将成为智能电网和能源互联网的关键组成部分,但保护技术的不成熟一定程度上限制了其应用。结合国内外对其保护技术相关方面的研究做了以下工作:首先,简述了柔性直流配电系统关键设备VSC换流器和直流变压器的控制策略,分析了适用于柔性直流配电系统的多端协调控制策略。然后,介绍了系统交流侧不对称故障和直流侧单极接地与极间短路情况下的故障特征,并分析了系统接地方式对故障特性的影响。随后,对其故障隔离手段和故障检测、识别原理进行了综述,简要分析了各种原理的优缺点。最后,列举了柔性直流配电系统保护技术所要重点关注和研究的问题。 | 戴志辉 葛红波 Peter Crossley 王增平 | 2017 | 华北电力大学学报(自然科学版)2017,44,4: | 15 |
| 2 | 广域保护中基于能量守恒原理的母线及输电线差动保护(英文)显示文摘提出一种基于能量守恒原理的纵联差动保护,对线路两端或母线各端的有功功率进行比较,若各端功率的和超出整定值,则判定为区内故障。在典型400 kV输电系统模型上,运用MATLAB仿真软件对所提出的原理进行了仿真验证。仿真结果表明,该方法比传统电流比率差动保护更加可靠且计算量小,因而可缩短动作时间。该方法能检测所有故障类型,适应于超高压远距离输电线路。 | Farhad NAMDARI Sadegh JAMALI Peter A CROSSLEY | 2007 | 电力系统自动化2007,31,3: | 13 |
| 3 | 数字化变电站继电保护系统过程总线结构研究显示文摘阐述了4种典型的基于IEC61850过程总线结构的数字化变电站继电保护系统结构,研究了不同过程总线结构的优缺点及其适用范围,以星形结构为例分析了功能整合对系统可用性的影响,指出引入适当的功能整合可提高系统可用性。总结分析了4家主要设备制造商对基于过程总线的数字化变电站继电保护系统应用的实现方案,评述了其优点及不足之处。介绍了基于IEC61850过程总线的数字化变电站保护系统性能项目研究,实验室测试验证了MiCOM系列保护IED在IEC61850过程总线结构下运行的兼容性和可靠性。针对实现数字化变电站的核心部件合并单元,提出了2种基于计算机的合并单元互操作性测试方案。 | 杨丽 赵建国 Peter A Crossley 陈大超 | 2010 | 电力自动化设备2010,30,8: | 11 |
| 4 | An experimental study of salt expansion in sodium saline soils under transient conditions显示文摘Salt expansion in sulfate saline soils that are widely distributed in northwestern China causes serious infrastructural damages under low-temperature conditions. However, the mechanism of salt expansion under low temperatures is not clear. In this study, we conducted a series of cooling experiments combined with salt crystallization to study this mechanism, and employed an ionic model to calculate the supersaturation ratio of the solution. During the experiments, the strength and the process of salt expansion were examined under different cooling rates and various crystal morphologies. The relationship between temperature and supersaturation ratio under transient conditions was also considered. Results indicate that the initial supersaturation ratio of a sodium sulfate solution is closely related to environmental conditions, and that this ratio decreases with slowing the cooling rates and stabilizing the crystal forms. Higher initial supersaturation ratios lead to an increased non-steady-state zone, resulting in less salt expansion. On the other hand, chloride ion content has a distinct influence on the crystallization supersaturation ratio of the sodium sulfate solution, and higher chloride ion content can inhibit salt expansion in sodium saline soils. These findings help explain salt expansion mechanisms in complex conditions such as seasonally frozen soils, and thus help search for improved methods of preventing salt expansion in sulfate saline soils. | WAN Xusheng YOU Zhemin WEN Haiyan William CROSSLEY | 2017 | Journal of Arid Land2017,9,6: | 9 |
| 5 | IEEE1588 V2在全数字化保护系统中的应用显示文摘通过分析IEEE1588 V2的特点,提出了支持IEEE1588 V2同步标准的全数字化保护系统组网测试方案。该方案针对网格型接线变电站的数字化保护系统设计,选用保护智能电子设备,建立网格角母线保护柜、馈线差动和距离保护柜、变压器高压/低压侧保护柜;提出以太网交换机的过程层应用方案,利用保护测试仪的时间码转换接口与上述以太网交换机配合完成时间同步。冗余时间源机制提高了过程层采样值时间同步的可靠性和准确性。 | 杨丽 赵建国 Peter A Crossley 陈大超 | 2010 | 电力自动化设备2010,30,10: | 9 |
| 6 | Time Synchronization for Transmission Substations Using GPS and IEEE 1588显示文摘Time synchronization systems that utilize the global navigation satellite systems(GNSS)are widely used in the monitoring,control,and protection of transmission networks.They ensure that phasor measurement units(PMUs)can accurately monitor voltage phase angles,increase the accuracy of fault locators,enhance the capabilities of disturbance recorders,and allow differential feeder protection to use re-routable communication networks.However,concern about the reliability of GNSS receivers used in intelligent electronic devices(IEDs)have been reported;problems include mal-operations of differential protection,erroneous satellite timing/location messages,inappropriate installations,and blocking of satellite signals due to illegal use of GNSS jammers in vehicles.Utilities now require a timing system less dependent on the use of low cost GNSS receivers integrated into IEDs,but one that uses Grandmaster clocks,slave and transparent clocks,and an Ethernet communication network.The IEEE 1588-2008 synchronization protocol uses the Ethernet to disseminate a global time reference around a substation.A future substation will probably include duplicate 1588 grandmasters,each incorporating stable oscillators with GNSS and terrestrial receivers,in conjunction with a 1588 compliant Ethernet data network with slave and transparent clocks,and redundancy boxes for interfacing with IEDs.Although IEEE 1588 protocol is promising for future substation automation systems,its performance and impact has to be fully evaluated before it can be used in real substations.This paper describes how an IEEE 1588 time synchronization testbed is designed,constructed,and tested.Testing involves measuring the time offset when the Ethernet is heavily loaded with other traffic and the holdover capability of 1588 clocks.Additional delay introduced by IEEE 1588 traffic is also measured.As there is limited testing on GPS receivers within the power industry,this paper also uses the testbed to evaluate the steady state and transient behavior of GPS receivers.The results show a 1588 time synchronization system is accurate,secure,and ideally suited for protection and control applications,compared to a timing system merely based on GPS receivers.The information described in this paper should increase a utility’s confidence in applying IEEE 1588 timing in a real substation. | Peter A Crossley Hao Guo Zhao Ma | 2016 | CSEE Journal of Power and Energy Systems2016,2,3: | 5 |
| 7 | Innovation Portfolio Management for Small-medium Enterprises显示文摘For small and medium sized enterprises,portfolio management can be a difficult exercise;especially when the available paths forwards are shrouded in mystery.To overcome this,they are required to research and decide upon the path to follow,but this can be difficult when the information to gather is unclear,leading to ad-hoc processes and inconsistency.The motivation for this project originated from a small and medium sized enterprise experiencing this problem of unknown critical information and a technological portfolio with significant potential.With no procedure or method in place,they conducted the research in an ad-hoc way resulting in uncertainty and low repeatability of decisions.To tackle this problem,innovation structuring frameworks were synthesised with appropriate risks and context to pose a new structure for information capture.The resulting structure was tested within the small and medium sized enterprise to investigate the repeatability of the information capture and the subsequent ranking.The proposed structure was also analysed by-process experts for its wider applicability.For the small and medium sized enterprise,this led to a consistent and repeatable method that delivered increased confidence about selecting a path forwards for its portfolio.In addition,it was found to be applicable to external organisations increasing the moders worth and applicability.The implications of this work have led to a change in the operational procedure of the small and medium sized enterprise to utilise the defined process for researching new ideas for their portfolio which can lead to repeatable and trustworthy decisions.This also has applicability to other similar companies and could lead them through a repeatable process as presented here. | Daniel Pashley Theo Tryfonas Andy Crossley Chris Setchell Stylianos Karatzas | 2020 | Journal of Systems Science and Systems Engineering2020,29,5: | 2 |
| 8 | Application of a wide area backup protection expert system to prevent cascading outages显示文摘 | Tan J C Crossley P A Mclaren P G | 2002 | IEEE Trans on Power Delivery2002,17,2: | 2 |
| 9 | The ventilation and climate modelling of rapid development tunnel drivages显示文摘 | Ian S. Lowndes Amanda J. Crossley Zhi-Yuan Yang | 2003 | Tunnelling and Underground Space Technology incorporating Trenchless Technology Research2003,,2: | 2 |
| 10 | Homocysteine and Its Relationship to Stroke Subtypes in a UK Black Population: The South London Ethnicity and Stroke Study显示文摘 | Usman Khan Carollyn Crossley Lalit Kalra Anthony Rudd Charles D.A. Wolfe Paul Collinson Hugh S. Markus | 2008 | Stroke2008,,11: | 2 |
| 11 | Coefficient of restitution interpreted as damping in vibroimpact 显示文摘 | Hunt K H Crossley F R E | 1975 | ASME Journal of Applied Mechanics (S0021-8936)1975,42,: | 1 |
| 12 | Dimeric inhibins in amniotic fluid, maternal serum, and fetal serum in human pregnancy显示文摘 | Riley SC Crossley JA Ritoe SC Horne A Shade M Ellis PM Aitken DA Groome NP | 1997 | J Clin Endocrinol Metab1997,82,1: | 1 |
| 13 | Application of a Wide Area Backup Protection Expert System to Prevent Cascading Outages 显示文摘 | Tan JC Crossley PA Mclaren PG | 2002 | IEEE Trans on Power Delivery2002,17,2: | 1 |
| 14 | Thermoregulation, mild perioperative hy- pothermia and postanaesthetic shivering显示文摘 | Buggy DJ Crossley AW | 2000 | Br J Anaesth2000,84,5: | 1 |
| 15 | Mammalian Kruppel-like transcription factors more than just a pretty finger显示文摘 | Turner J Crossley M | 1999 | Trends Biochem Sci1999,24,6: | 1 |
| 16 | Aerodynamic shape design for rotor airfoil via genetic algorithm显示文摘 | FANJOY D W CROSSLEY W A | 1998 | Joumal of American Helicopter Society1998,,7: | 1 |
| 17 | Semi-topological properties 显示文摘 | CROSSLEY S G HILDOBRAND S K | 1972 | Fund Math1972,74,: | 1 |
| 18 | Development of a Global Measure of Job Embeddedness and Integration into a Tradi- tional Model of Voluntary Turnover 显示文摘 | Crossley C Bennett R J Jex S M | 2007 | Journal of Applied Psychology2007,92,4: | 1 |
| 19 | Homocyst eine and its relationship to stroke subtypes in a UK black population:the south London ethnicity and stroke study显示文摘 | Khan V Crossley C Kalra L | | 0,,: | 1 |
| 20 | Distance Protection based on traveling waves显示文摘 | Crossley PA Mclaran P G | | 0,,09: | 1 |