2018 IEEE/IAS 54th Industrial and Commercial Power Systems Technical Conference (I&CPS)最新文献_第2页

Decaying DC offset detection on CTs measurements applying mathematical morphology 应用数学形态学检测ct测量中的衰减直流偏置

2018 IEEE/IAS 54th Industrial and Commercial Power Systems Technical Conference (I&CPS) Pub Date : 2018-05-07 DOI: 10.1109/ICPS.2018.8428528

David F. Celeita, J. D. Perez, G. Ramos

引用次数: 2

Interconnections criteria of grounding grids in global grounding systems 全球接地系统中接地网的互连准则

2018 IEEE/IAS 54th Industrial and Commercial Power Systems Technical Conference (I&CPS) Pub Date : 2018-05-07 DOI: 10.1109/ICPS.2018.8369974

M. L. Di Silvestre, L. Dusonchet, S. Favuzza, S. Mangione, L. Mineo, Massimo Mitolo, E. R. Sanseverino, G. Zizzo

引用次数: 3

Frame-angle-based controller for 3φ interconnected PV systems 基于框架角度的3φ互联光伏系统控制器

2018 IEEE/IAS 54th Industrial and Commercial Power Systems Technical Conference (I&CPS) Pub Date : 2018-05-07 DOI: 10.1109/ICPS.2018.8370006

S. Saleh

{"title":"Frame-angle-based controller for 3φ interconnected PV systems","authors":"S. Saleh","doi":"10.1109/ICPS.2018.8370006","DOIUrl":"https://doi.org/10.1109/ICPS.2018.8370006","url":null,"abstract":"This paper presents the development and performance of a controller for photovoltaic (PV) systems that are grid-connected through a 3φ wavelet modulated (WM) dc-ac power electronic converter (PEC). The proposed controller is designed using decoupled current control loops, which have the d — q-axis components of the currents injected to the grid, as their inputs. The outputs of this controller are command values for the d — q-axis components of the voltages produced by a 3φ WM dc-ac PEC (v∗<inf>Id</inf> and v<sup>∗</sup><inf>Iq</inf>). The values of v∗<inf>Id</inf> and v∗<inf>Iq</inf> are used to determine the required angle ê, which aligns the frame spanned by the actual d-q-axis components of the voltages produced by the controlled 3φ WM dc-ac PEC (v<inf>Id</inf> and v<inf>Iq</inf>). The adjustments of ê allow changing the phase angles of the sinusoidal reference signals used to generate the wavelet modulation switching pulses. The proposed controller is implemented for performance testing using a 15 kW ac module PV system that is interconnected through a 3φ, 6-pulse, WM dc-ac PEC. The performance of the frame-angle controller is tested for different changes in the power delivered to the grid and system parameters. Test results demonstrate stable, fast, and accurate control actions that are complimented by negligible sensitivity to levels of power delivery to the grid, as well as variations in system parameters.","PeriodicalId":142445,"journal":{"name":"2018 IEEE/IAS 54th Industrial and Commercial Power Systems Technical Conference (I&CPS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130922724","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

Evaluation of the maximum allowable generation capacity after offshore wind farms are integrated into the existing taipower system-A case study in Taiwan 评估海上风电场与现有台湾电力系统整合后的最大容许发电量—以台湾为例

2018 IEEE/IAS 54th Industrial and Commercial Power Systems Technical Conference (I&CPS) Pub Date : 2018-05-07 DOI: 10.1109/ICPS.2018.8369984

Shiue‐Der Lu, Ming-Tse Kuo, Chin-Chung Wu, Ming-Chang Tsou, Haodong Zeng

{"title":"Evaluation of the maximum allowable generation capacity after offshore wind farms are integrated into the existing taipower system-A case study in Taiwan","authors":"Shiue‐Der Lu, Ming-Tse Kuo, Chin-Chung Wu, Ming-Chang Tsou, Haodong Zeng","doi":"10.1109/ICPS.2018.8369984","DOIUrl":"https://doi.org/10.1109/ICPS.2018.8369984","url":null,"abstract":"This research aimed to explore the maximum connection capacity that distribution substations can withstand as well as the distribution status of the system's power flow when offshore wind farms are connected into the power grid in the Changbin area, and then make analyses into the transient stability of the system. It mainly used PSS/E power software to analyze the off-peak system of Taiwan Power Company in 2018, put forward the average and disperse grid connection methods and the grid connection method based on the loading rate of the line, and compared the maximum connection capacity of the area under the circumstance in which the power grid fails to establish (expand) lines, and then adopted the N-1 planning guideline when offshore wind farms are connected to different substations. In addition, this research also analyzed voltage regulation, low voltage right through analysis, and three-phase short circuit current in view of the power grid connected into the maximum capacity of wind farms, conducted fault simulation of different voltage grades and distances in view of the power grid, and observed the ability of the system to reply stably in the face of accidents. It was shown from the research results that offshore wind farms could allow the grid connection capacity of the Changbin area to reach 1.9GW after adopting the proposed grid connection methods. In addition, it was found through the analysis into transient stability, power flow, and other system impacts that the system could restore stable operations after removal of the fault, which complies with the provisions of the Planning Guideline for Power Transmission System and Technical Points for Parallel Connection of Renewable Energy Power Generation System of Taiwan Power Company.","PeriodicalId":142445,"journal":{"name":"2018 IEEE/IAS 54th Industrial and Commercial Power Systems Technical Conference (I&CPS)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125442317","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: 3

Support vector machine based dynamic load model using synchrophasor data 基于支持向量机的同步量数据动态负荷模型

2018 IEEE/IAS 54th Industrial and Commercial Power Systems Technical Conference (I&CPS) Pub Date : 2018-05-07 DOI: 10.1109/ICPS.2018.8369961

Xiaodong Liang, Yi-gang He, Massimo Mitolo, Weixing Li

引用次数: 7

Impacts of grounding and winding configurations on voltage harmonics in 3φ power transformers 接地和绕组配置对3φ电力变压器电压谐波的影响

2018 IEEE/IAS 54th Industrial and Commercial Power Systems Technical Conference (I&CPS) Pub Date : 2018-05-07 DOI: 10.1109/ICPS.2018.8369976

S. Saleh, X. F. S. Onge, C. Richard, E. Ozkop, K. McDonald, S. Panetta

{"title":"Impacts of grounding and winding configurations on voltage harmonics in 3φ power transformers","authors":"S. Saleh, X. F. S. Onge, C. Richard, E. Ozkop, K. McDonald, S. Panetta","doi":"10.1109/ICPS.2018.8369976","DOIUrl":"https://doi.org/10.1109/ICPS.2018.8369976","url":null,"abstract":"Three phase (3φ) power transformers are available in various configurations, which offer the advantage of creating local neutral and grounding points. The different configurations of the primary and secondary sides of 3φ transformers can alter the paths, through which harmonic components of exciting currents flow. Such an alteration can cause the induction of undesired harmonic components in the voltages on both sides of a 3φ power transformer. Among these undesired harmonic components is the third harmonic, which can exceed the standardized limits, and can adversely impact the transformer, transmission system, grounding system, protective devices, and/or fed loads. The magnitude of the voltage third harmonic component is highly dependent on the core type, configuration of primary and secondary windings, and ground return paths. This paper experimentally examines the presence of the third harmonic component in primary and secondary side voltages for a 3φ transformer for different primary and secondary winding configurations, separately derived point-of-supply, and isolated and directly connected grounding. The different configurations will be examined to determine what may or may not be considered a separately derived source.","PeriodicalId":142445,"journal":{"name":"2018 IEEE/IAS 54th Industrial and Commercial Power Systems Technical Conference (I&CPS)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131455763","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: 17

Measuring the electrical safety in low-voltage distribution systems 低压配电系统电气安全性的测量

2018 IEEE/IAS 54th Industrial and Commercial Power Systems Technical Conference (I&CPS) Pub Date : 2018-05-07 DOI: 10.1109/ICPS.2018.8369975

Massimo Mitolo, T. Bajzek

{"title":"Measuring the electrical safety in low-voltage distribution systems","authors":"Massimo Mitolo, T. Bajzek","doi":"10.1109/ICPS.2018.8369975","DOIUrl":"https://doi.org/10.1109/ICPS.2018.8369975","url":null,"abstract":"The determination of both magnitude and duration of touch voltages is of paramount importance to protect persons against electric shock hazards, such as those caused by basic insulation failure in equipment/appliances, or direct contact with live parts. The magnitude of touch voltages depends on the impedance of the equipment grounding conductor (also referred to as Protective Conductor), which should be therefore properly sized. In the U.S., the National Electric Code (NEC) provides minimum sizes for the equipment grounding conductor; however, the NEC further clarifies that the equipment grounding conductor selected in the specific NEC table might need be sized larger to provide adequate electrical safety. In this paper, the authors discuss the major specifications that a “new generation” tester applied to NEC based low-voltage receptacles, or live terminals of feeder/branch circuits, should possess to indicate to users if a ground-fault would cause unsafe touch potentials. Such tester should also unequivocally identify improper wiring of the outlet (e.g. phase-neutral swap, equipment grounding conductor-to-neutral bond).","PeriodicalId":142445,"journal":{"name":"2018 IEEE/IAS 54th Industrial and Commercial Power Systems Technical Conference (I&CPS)","volume":"446 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123627671","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

Experimental identification and verification for a comprehensive model of multi-shaft combined cycle power plant 多轴联合循环电厂综合模型的实验辨识与验证

2018 IEEE/IAS 54th Industrial and Commercial Power Systems Technical Conference (I&CPS) Pub Date : 2018-05-07 DOI: 10.1109/ICPS.2018.8467714

S. A. Salamati, S. M. Salamati, F. R. Salmasi

{"title":"Experimental identification and verification for a comprehensive model of multi-shaft combined cycle power plant","authors":"S. A. Salamati, S. M. Salamati, F. R. Salmasi","doi":"10.1109/ICPS.2018.8467714","DOIUrl":"https://doi.org/10.1109/ICPS.2018.8467714","url":null,"abstract":"This paper investigates overall modeling and experimental identification and verification of a multi-shaft combined cycle power plant (CCPP). Models for subsystems of CCPP are given which can simulate each unit’s behavior during steady state, as well as transient conditions. Some standard models such as GGOV1, CIGRE model for HRSGs, and AC7 are described and their pros and cons are mentioned. A comprehensive test procedure with practical considerations is introduced and important issues regarding the test procedure and modeling in such a power plant are described in this paper. The paper discussed endeavors to cover most of the practical challenges during real-time parameter's identification process in such a power plant. In order to test the models’ efficacy and accuracy, a 345 MW multi-shaft CCPP has been selected as the case study. Developed models for each component such as gas turbine (GT), heat recovery system generator (HRSG), steam turbine (ST), etc. are studied. A comparative evaluation of field test results extracted from the monitoring system of the plant and simulation results by the proposed model are carried out for different nominal conditions in order to verify the authenticity of the identified models. Finally, a comprehensive model of multishaft CCPP is introduced and its precise validity conditions are described in details. This proposed model can be used in dynamic and stability studies of the power grid.","PeriodicalId":142445,"journal":{"name":"2018 IEEE/IAS 54th Industrial and Commercial Power Systems Technical Conference (I&CPS)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131039574","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

Emission-aware stochastic resource planning scheme for data center microgrid considering batch workload scheduling and risk management 考虑批量工作负载调度和风险管理的数据中心微电网随机资源规划方案

2018 IEEE/IAS 54th Industrial and Commercial Power Systems Technical Conference (I&CPS) Pub Date : 2018-05-07 DOI: 10.1109/ICPS.2018.8369969

Zhaohao Ding, Liye Xie, Ying Lu, Peng Wang, S. Xia

引用次数: 34

Electrical fire ignitions: The evolution assists identifying the origin in the distribution level 电气点火:进化有助于识别分布水平的起源

2018 IEEE/IAS 54th Industrial and Commercial Power Systems Technical Conference (I&CPS) Pub Date : 2018-05-01 DOI: 10.1109/ICPS.2018.8369988

G. Parise, L. Parise, Giuseppe Mazzau

引用次数: 2