PES T&D 2012最新文献_第7页

Impact of non-dispatchable renewables on generator cycling and control via a hierarchical control scheme 不可调度可再生能源对发电机循环和控制的影响

PES T&D 2012 Pub Date : 2012-05-07 DOI: 10.1109/TDC.2012.6281670

Renke Huang, E. Farantatos, G. Cokkinides, A. Meliopoulos

{"title":"Impact of non-dispatchable renewables on generator cycling and control via a hierarchical control scheme","authors":"Renke Huang, E. Farantatos, G. Cokkinides, A. Meliopoulos","doi":"10.1109/TDC.2012.6281670","DOIUrl":"https://doi.org/10.1109/TDC.2012.6281670","url":null,"abstract":"Increasing penetration of intermittent non-dispatchable renewable resources to the power grid could result in a less reliable and secure system if the intermittency is ignored. An additional effect of intermittency is the cycling of thermal units as the thermal units are controlled under an economic dispatch controller. This paper proposes an approach to smoothen the intermittency and therefore minimize thermal unit cycling by controlling demand and other customer owned resources. Specifically, a hierarchical optimization and coordination algorithm is proposed that takes advantage of the control capabilities of these resources and optimizes their operation with the ultimate goal to minimize system operating cost and maximized reliability. A byproduct of this optimization is the reduced cycling of dispatchable generating units. Results are demonstrated on a utility scale system with various levels of wind penetration using actual wind generation patterns. It is shown that while the objective of the optimization is the minimization of the overall operating cost of the system, the optimal solution also reduces the number of cycles and the average MW variation per cycle. This minimization of thermal unit wear and tear increases the reliability of the system.","PeriodicalId":19873,"journal":{"name":"PES T&D 2012","volume":"93 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2012-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84158599","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

Comparative study of maximum power point tracking control strategies for solar PV systems 太阳能光伏系统最大功率点跟踪控制策略的比较研究

PES T&D 2012 Pub Date : 2012-05-07 DOI: 10.1109/TDC.2012.6281560

H. Zheng, Shuhui Li, Ke Bao, Dong Zhang

引用次数: 29

Negotiation agent with adaptive attitude bidding strategy for facilitating energy exchanges between smart building and utility grid 基于自适应姿态竞价策略的谈判代理促进智能建筑与电网的能源交换

PES T&D 2012 Pub Date : 2012-05-07 DOI: 10.1109/TDC.2012.6281688

Zhu Wang, Lingfeng Wang

引用次数: 4

Practical modeling of Smart Grid SMS™ storage management system in a microgrid 微电网智能电网SMS™存储管理系统的实用建模

PES T&D 2012 Pub Date : 2012-05-07 DOI: 10.1109/TDC.2012.6281697

S. Bahramirad, E. Camm

引用次数: 15

Substation surveillance using RFI and complementary EMI detection techniques 变电站监控使用射频识别和互补的电磁干扰检测技术

PES T&D 2012 Pub Date : 2012-05-07 DOI: 10.1109/TDC.2012.6281616

A. Nesbitt, B. Stewart, S. McMeekin, K. Liebech-Lien, H. Kristiansen

{"title":"Substation surveillance using RFI and complementary EMI detection techniques","authors":"A. Nesbitt, B. Stewart, S. McMeekin, K. Liebech-Lien, H. Kristiansen","doi":"10.1109/TDC.2012.6281616","DOIUrl":"https://doi.org/10.1109/TDC.2012.6281616","url":null,"abstract":"The successful implementation of a substation asset management strategy depends heavily on predictive maintenance assessments with surveillance based techniques used to identify potential sites of degradation followed by more investigative and invasive quantitative techniques. The deployment of radio frequency interference (RFI) measurement can provide an efficient non-invasive surveillance technique to detect and locate partial discharges (PD) to individual high-voltage (HV) apparatus. This paper demonstrates the benefits of combining the assessment of RFI emissions with targeted deployment of other complementary non-invasive electromagnetic interference (EMI) detection techniques. This provides an increased level of confidence in the location, identification and assessment of severity of degradation and is of particular importance with complex HV apparatus such as transformers where the propagation paths for RFI are less well defined. Frequency sweep data and time-resolved traces acquired from substation surveillance scenarios are presented and compared with follow up assessments using complementary EMI couplers such as high frequency CTs (HFCT) and transient earth voltage (TEV) couplers. Key parameters that characterise RFI emissions in the frequency domain and in the time domain (e.g. RFI intensity and bandwidth, repetition rate) that provide a measure of severity of degradation and a means to classify or fingerprint suspect fault mechanisms, are correlated with those derived from measurements using other complementary PD detection techniques. The RFI surveillance technique followed by the deployment of complementary PD detection techniques is proven to be effective with a wide range of HV equipment to confidently characterise and trace electrical deterioration with a high degree of confidence.","PeriodicalId":19873,"journal":{"name":"PES T&D 2012","volume":"44 1","pages":"1-20"},"PeriodicalIF":0.0,"publicationDate":"2012-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84894969","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

Minimal cut sets, Petri nets, and prime number encoding in distribution system reliability evaluation 配电系统可靠性评估中的最小割集、Petri网与素数编码

PES T&D 2012 Pub Date : 2012-05-07 DOI: 10.1109/TDC.2012.6281495

M. Al-Muhaini, G. Heydt

引用次数: 13

A novel nonlinear coating for suppression of metallic particle motion in GIS 一种用于抑制GIS中金属粒子运动的新型非线性涂层

PES T&D 2012 Pub Date : 2012-05-07 DOI: 10.1109/TDC.2012.6281465

Xueqin Zhang, K. Nojima, H. Andoh, M. Takei, S. Boggs

引用次数: 0

Volt-VAR optimization on American Electric Power feeders in Northeast Columbus 哥伦布东北部美国电力馈线的电压无功优化

PES T&D 2012 Pub Date : 2012-05-07 DOI: 10.1109/TDC.2012.6281586

K. Schneider, T. Weaver

引用次数: 31

Effects of uncertainties in shaft mechanical parameters on maximum torsional torques in meshed networks with HVDC lines 轴系力学参数不确定性对高压直流电网最大扭矩的影响

PES T&D 2012 Pub Date : 2012-05-07 DOI: 10.1109/TDC.2012.6281542

A. Adrees, J. Milanović

引用次数: 2

Directly buried gas-insulated transmission lines (GIL) 直埋气体绝缘输电线路(GIL)

PES T&D 2012 Pub Date : 2012-05-07 DOI: 10.1109/TDC.2012.6281707

S. Poehler, P. Rudenko

{"title":"Directly buried gas-insulated transmission lines (GIL)","authors":"S. Poehler, P. Rudenko","doi":"10.1109/TDC.2012.6281707","DOIUrl":"https://doi.org/10.1109/TDC.2012.6281707","url":null,"abstract":"Regarding the increasing interest in underground transmission systems, gas-insulated lines (GIL) represent an attractive alternative to cable solutions. Changes in the regulatory framework with respect to planned extensions of extra high voltage (EHV) systems have intensified the demand for underground transmission lines in general. GIL are utilized mainly above ground (e.g. in substations) or in underground tunnels. However, the option of a directly buried GIL which does not need the expenditure of a tunnel has not so far been put into effect in the EHV range, although it exhibits a number of advantages such as high current carrying capacity, low losses, low charging capacity etc. Some years ago a test installation of directly buried GIL proved that the operation of such a system is favourable in many aspects. For this reason, it was decided in 2008 to set up a system for commercial use in the network of German network operator Amprion. In the area of Frankfurt airport, a double system of a directly buried GIL with a total length of about one km has been erected to ensure the safety distance between overhead transmission line (OHL) and the new runway. The GIL containing an N2/SF6 gas mixture is at one end directly connected to a 400 kV gas-insulated substation (GIS). At the other end the GIL joins the incoming OHL via gas-insulated bushings.","PeriodicalId":19873,"journal":{"name":"PES T&D 2012","volume":"51 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2012-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77611146","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