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2015 IEEE/IAS 51st Industrial & Commercial Power Systems Technical Conference (I&CPS)最新文献

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Development of a novel preventive protective mechanism in an isolated island system 孤岛系统新型预防保护机制的建立
2015 IEEE/IAS 51st Industrial & Commercial Power Systems Technical Conference (I&CPS) Pub Date : 2015-05-05 DOI: 10.1109/ICPS.2015.7266444
Yuan-Kang Wu
{"title":"Development of a novel preventive protective mechanism in an isolated island system","authors":"Yuan-Kang Wu","doi":"10.1109/ICPS.2015.7266444","DOIUrl":"https://doi.org/10.1109/ICPS.2015.7266444","url":null,"abstract":"This work develops an intelligent defense mechanism, system protection plan, and an alarm strategy for isolated island systems with a high penetration of wind power. An intelligent forecasting system that can effectively predict the frequency response of a system to a system contingency is designed. The forecasts can assist in planning system protection strategies, including rescheduling generators, increasing the number of diesel generator units, or implementing an optimized low-frequency load shedding strategy. The simulation results herein reveal that these proposed forecasting models can accurately estimate the lowest frequency, the rate of change of frequency, and the minimum load shedding during stable operation. Actual island systems are considered as examples to elucidate the feasibility of the proposed defense system and the accuracy of forecasting. The results in this study can provide system operators with a valuable reference that can help in preventive dispatch and the planning of load shedding.","PeriodicalId":107232,"journal":{"name":"2015 IEEE/IAS 51st Industrial & Commercial Power Systems Technical Conference (I&CPS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129231918","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
Electrical substation automation system modernization through the adoption of IEC61850 变电站电气自动化系统现代化通过采用IEC61850
2015 IEEE/IAS 51st Industrial & Commercial Power Systems Technical Conference (I&CPS) Pub Date : 2015-05-05 DOI: 10.1109/ICPS.2015.7266445
Xueyang Cheng, Weijen Lee, Xianghua Pan
{"title":"Electrical substation automation system modernization through the adoption of IEC61850","authors":"Xueyang Cheng, Weijen Lee, Xianghua Pan","doi":"10.1109/ICPS.2015.7266445","DOIUrl":"https://doi.org/10.1109/ICPS.2015.7266445","url":null,"abstract":"There is demand for a substation automation system (SAS) that is simple to integrate and provide high performance and flexibility. The increasing installation of Intelligent Electronic Devices (IEDs) provides interoperability and advanced communications capabilities in substation protection, coordination, control, monitoring, metering, and testing. IEC 61850 is the result of the efforts of the IEC Technical Committee 57 to produce an open standard for substation modeling and communications. The standard has gained popularity and continues to spread throughout the world. In this paper, IEC 61850 application in typical substation automation is explored. The experience of a real SAS modernization case is introduced. This case highlights the benefit of the IEC 61850 in substation monitoring and operation.","PeriodicalId":107232,"journal":{"name":"2015 IEEE/IAS 51st Industrial & Commercial Power Systems Technical Conference (I&CPS)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115371786","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: 8
Power system model data provenance 电力系统模型数据来源
2015 IEEE/IAS 51st Industrial & Commercial Power Systems Technical Conference (I&CPS) Pub Date : 2015-05-05 DOI: 10.1109/ICPS.2015.7266421
Duane Leschert, Pamela Mclean
{"title":"Power system model data provenance","authors":"Duane Leschert, Pamela Mclean","doi":"10.1109/ICPS.2015.7266421","DOIUrl":"https://doi.org/10.1109/ICPS.2015.7266421","url":null,"abstract":"A model of a power system is a representation of that system. The value of that model depends on both the degree to which the model correctly represents the power system, and the analyses for which that model will be used. The documentation of the data used in a model is the provenance of that data. This paper discusses the provenance of data which appears in a power system model. While model data provenance is important for any model, data provenance is especially important when a model is to be maintained and used repeatedly for the life of a facility.","PeriodicalId":107232,"journal":{"name":"2015 IEEE/IAS 51st Industrial & Commercial Power Systems Technical Conference (I&CPS)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125808927","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
Fast transient loads of low voltage power cables 低压电力电缆的快速瞬态负载
2015 IEEE/IAS 51st Industrial & Commercial Power Systems Technical Conference (I&CPS) Pub Date : 2015-05-05 DOI: 10.1109/ICPS.2015.7266418
R. Henry
{"title":"Fast transient loads of low voltage power cables","authors":"R. Henry","doi":"10.1109/ICPS.2015.7266418","DOIUrl":"https://doi.org/10.1109/ICPS.2015.7266418","url":null,"abstract":"Fast transient loads are kiloampere current spikes that last several minutes. The most recognized standards for sizing US manufactured cables are ampacity tables published in the National Electrical Code [3]. These tables are only for steady-state loads. For occasional kiloampere spikes of several minutes' duration, the temperature responses of medium-voltage cables have been published in [1]. A method to quickly size medium-voltage conductors undergoing fast transient loads is presented in [2]. Herein, fast transient work extends these methods to cover low-voltage cables of US manufacture. Exponential functions are analytically derived in [1] that express temperature responses to step changes in cable currents. Formulas for coefficients and time constants are derived. In [1] and [2] cable manufacturers' data and other sources for physical properties are used to calculate the responses of four sizes of 5kV power cables to these current spikes. The tables listing the results are repeated here with their sizing procedure. Herein are developed temperature responses to current spikes carried by 600 volt cables, and 600V power cable sizing methods. Motors demanding fast transient loads, and variable-speed drives supplying them are also discussed.","PeriodicalId":107232,"journal":{"name":"2015 IEEE/IAS 51st Industrial & Commercial Power Systems Technical Conference (I&CPS)","volume":"6 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124810925","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
Coordination control of PV inverters for load transfer operation of distribution feeders with high penetration of PV installation 高渗透率配电馈线负荷转移运行的光伏逆变器协调控制
2015 IEEE/IAS 51st Industrial & Commercial Power Systems Technical Conference (I&CPS) Pub Date : 2015-05-05 DOI: 10.1109/ICPS.2015.7266403
T. Ku, C. H. Lin, C. S. Chen, C. Hsu, W. Hsieh, S. Hsieh
{"title":"Coordination control of PV inverters for load transfer operation of distribution feeders with high penetration of PV installation","authors":"T. Ku, C. H. Lin, C. S. Chen, C. Hsu, W. Hsieh, S. Hsieh","doi":"10.1109/ICPS.2015.7266403","DOIUrl":"https://doi.org/10.1109/ICPS.2015.7266403","url":null,"abstract":"This paper presents the dispatch of reactive power compensation and real power curtailment of PV systems to prevent the over voltage violation when load transfer between distribution feeders is executed. The voltage sensitivity factors of reactive power injection at all PV buses are derived according to the configuration of distribution network. The Advanced Distribution Automation System (ADAS) issues the control command to each PV inverter for adjustment of PV power generation according to the sensitivity coefficients and PV installation capacity so that the ancillary service of voltage support can be provided by all PV systems in a fairer manner. The practical Taipower distribution feeders are selected for computer simulation to verify the effectiveness of the proposed control method to mitigate the voltage violation problem for the operation of load transfer between distribution feeders with high penetration of PV installation.","PeriodicalId":107232,"journal":{"name":"2015 IEEE/IAS 51st Industrial & Commercial Power Systems Technical Conference (I&CPS)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114349944","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
Switching transients' impact on transformers and snubbers application 开关暂态对变压器和缓冲器应用的影响
2015 IEEE/IAS 51st Industrial & Commercial Power Systems Technical Conference (I&CPS) Pub Date : 2015-05-05 DOI: 10.1109/ICPS.2015.7266438
Shahid K. Sheikh
{"title":"Switching transients' impact on transformers and snubbers application","authors":"Shahid K. Sheikh","doi":"10.1109/ICPS.2015.7266438","DOIUrl":"https://doi.org/10.1109/ICPS.2015.7266438","url":null,"abstract":"The switching transient is not a new phenomenon; it has been around for many decades. Recently, it has received more attention, because of the failure of some dry-type transformers that are mainly used in data centers. This paper investigates fast interrupting switching devices, especially vacuum circuit breakers (VCBs). The following questions were investigated: How does a VCB generate transients? What is the transient's impact on dry-type transformers? How can using a snubber circuit mitigate the transient?","PeriodicalId":107232,"journal":{"name":"2015 IEEE/IAS 51st Industrial & Commercial Power Systems Technical Conference (I&CPS)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114459993","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
On the use of the Law of Times in calculating soil thermal stability and underground cable ampacity 时间定律在计算土壤热稳定性和地下电缆容量中的应用
2015 IEEE/IAS 51st Industrial & Commercial Power Systems Technical Conference (I&CPS) Pub Date : 2015-05-05 DOI: 10.1109/ICPS.2015.7266429
K. Malmedal, C. Bates, D. Cain
{"title":"On the use of the Law of Times in calculating soil thermal stability and underground cable ampacity","authors":"K. Malmedal, C. Bates, D. Cain","doi":"10.1109/ICPS.2015.7266429","DOIUrl":"https://doi.org/10.1109/ICPS.2015.7266429","url":null,"abstract":"The heat generated by underground cables has been known to cause the soil around the cables to dry, increasing its thermal resistivity and potentially causing the cables to overheat. The ability of soil to maintain a constant resistivity while being subjected to a heat source is known as its “thermal stability”. A method using the Law of Times has often been recommended to determine soil stability. To test whether this method can accurately predict soil thermal stability an experiment was performed that tested the hypothesis inherent in the Law of Times that the diameter of the heat source affects the drying time of the soil surrounding it. This paper reports the results of that experiment and includes the statistical analysis of the data. The experimental evidence resulted in rejecting the Law of Times as an accurate predictor of the drying time of soil around a buried cable.","PeriodicalId":107232,"journal":{"name":"2015 IEEE/IAS 51st Industrial & Commercial Power Systems Technical Conference (I&CPS)","volume":"2 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127975409","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: 9
Novel frequency jittering control applied to energy-saving converters 新型频率抖动控制在节能变流器中的应用
2015 IEEE/IAS 51st Industrial & Commercial Power Systems Technical Conference (I&CPS) Pub Date : 2015-05-05 DOI: 10.1109/ICPS.2015.7266402
Ming-Tse Kuo, Ming-Chang Tsou, Shiue‐Der Lu
{"title":"Novel frequency jittering control applied to energy-saving converters","authors":"Ming-Tse Kuo, Ming-Chang Tsou, Shiue‐Der Lu","doi":"10.1109/ICPS.2015.7266402","DOIUrl":"https://doi.org/10.1109/ICPS.2015.7266402","url":null,"abstract":"The low cost and high efficiency of quasi-resonant flyback converters have resulted in their wide application as the main circuit topology in power-converters. Because conducted electromagnetic interference (EMI) at low frequency domain of conventional quasi-resonant (QR) flyback converters probably exceeds the EN55022 Class-B of EMI standards, this paper presents novel frequency jittering control as the solution. The spread spectrum energy is used to reduce the harmonic amplitude and decrease the average transmission characteristic in the low frequency range. The presented new method is implemented in a chip and therefore an external component is unnecessary for the circuit, and no additional cost is incurred. A 24-W quasi-resonant flyback converter is designed to verify the presented method. The experimental results show that the average conducted EMI at 642 kHz is significantly lowered by approximately 10.2 dB and thus easily meets Comité International Spécial des Perturbations Radioélectriques 22 (CISPR 22) standards.","PeriodicalId":107232,"journal":{"name":"2015 IEEE/IAS 51st Industrial & Commercial Power Systems Technical Conference (I&CPS)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125623445","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
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