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Fast and economic generator output adjustment for improvement of transient stability ATC 快速和经济的发电机输出调节，以提高暂态稳定ATC
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523264
R. Tabuchi, T. Chiku, S. Iwamoto, H. Hosogoe, Yasuto Akiyama
{"title":"Fast and economic generator output adjustment for improvement of transient stability ATC","authors":"R. Tabuchi, T. Chiku, S. Iwamoto, H. Hosogoe, Yasuto Akiyama","doi":"10.1109/ASSCC.2012.6523264","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523264","url":null,"abstract":"Recent deregulation has increased inter-area electricity transactions. Also, renewable energy and distributed power generation have been introduced into power systems because of worldwide societal interest in environmental problems. However, renewable energies such as photovoltaic and wind power generation are unstable due to their dependence on natural sources. This has made power systems more complicated and potentially prone to large outages, particularly due to transient stability problem. Tie-line Available Transfer Capability (ATC) is an important transaction index. Previous ATC research has mainly focused on fast calculation, but more flexible transactions should also improve ATC. We propose an efficient generator output adjustment method for improving transient stability in ATC, taking into account calculation speed and economy.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128575586","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
A matrix converter based Inductive Power Transfer system 基于矩阵变换器的感应功率传输系统
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523320
Nguyen Xuan Bac, D. Vilathgamuwa, U. Madawala
{"title":"A matrix converter based Inductive Power Transfer system","authors":"Nguyen Xuan Bac, D. Vilathgamuwa, U. Madawala","doi":"10.1109/ASSCC.2012.6523320","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523320","url":null,"abstract":"Typical Inductive Power Transfer (IPT) systems employ two power conversion stages to generate a high frequency current from low frequency utility supply. This paper proposes a matrix converter based IPT system that facilitates the generation of high frequency current through a single power conversion stage. The proposed matrix converter topology transforms a 3-phase low frequency voltage system to a high frequency single phase voltage which in turn powers a series compensated IPT system. A comprehensive mathematical model is developed to investigate the behavior of the proposed IPT topology. Theoretical results are presented in comparison to simulations, which are performed in Matlab/ Simulink, to demonstrate the applicability of the proposed concept and the validity of the developed model.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127943047","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: 13
Power system risk assessment based on cascading failures and malfunction scene selection 基于级联故障和故障场景选择的电力系统风险评估
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523235
W. Qin, H. Wei, W. Zhao, J. Zhang
{"title":"Power system risk assessment based on cascading failures and malfunction scene selection","authors":"W. Qin, H. Wei, W. Zhao, J. Zhang","doi":"10.1109/ASSCC.2012.6523235","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523235","url":null,"abstract":"With the development of power system and the emerging of power market, the operation of power network is closer to its limit than before. The security and reliability assessments for cascading failures of the power system are important and necessary. However, the system malfunction scenes are not possible evaluated wholly if multiple failures are considered. This paper presents a new approach to assess the system risk based on cascading failures firstly. This approach associates the occurrence probability of cascading failures with their damage on power system. The load conditions, the change of bus voltage and line flow are considered too. Secondly, malfunction scenes based on cascading failures are screened and selected according to the system risk evaluation results. At last, a practical 220kV Taiyuan power system in Shanxi Province of China has been analyzed to illustrate the proposed technique.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130078319","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
Policies and initiatives for carbon neutrality in nordic heating and transport systems 北欧供暖和运输系统碳中和的政策和倡议
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523234
J. Møller, Qiuwei Wu, J. Østergaard, A. Nielsen, Yi Ding
{"title":"Policies and initiatives for carbon neutrality in nordic heating and transport systems","authors":"J. Møller, Qiuwei Wu, J. Østergaard, A. Nielsen, Yi Ding","doi":"10.1109/ASSCC.2012.6523234","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523234","url":null,"abstract":"Policies and initiatives promoting carbon neutrality in the Nordic heating and transport systems are presented. The focus within heating systems is the propagation of heat pumps while the focus within transport systems is initiatives regarding electric vehicles (EVs). It is found that conversion to heat pumps in the Nordic region rely on both private economic and national economic incentives. Initiatives toward carbon neutrality in the transport system are mostly concentrated on research, development and demonstration for deployment of a large number of EVs. All Nordic countries have plans for the future heating and transport systems with the ambition of realizing carbon neutrality.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"2017 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131768198","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
Relationship between generator affinity and voltage profile improvement 发电机亲和力与电压分布改善的关系
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523310
T. Sikiru, A. Jimoh, Y. Hamam, J. Agee, R. Ceschi
{"title":"Relationship between generator affinity and voltage profile improvement","authors":"T. Sikiru, A. Jimoh, Y. Hamam, J. Agee, R. Ceschi","doi":"10.1109/ASSCC.2012.6523310","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523310","url":null,"abstract":"This paper demonstrates the relationship between generator affinity and voltage profile improvement. Circuit theory and the partitioned Y-admittance matrix were used to derive the generator affinity for power system networks. Results show that the lowest voltages occur at buses without generator affinity. Locating generators (pseudo generators) such that buses are within generators affinities significantly improves the overall voltage profile.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133459601","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
The influence of cable capacitance, generator neutral grounding and zig-zag transformer to third harmonic produced by synchronous generator 电缆电容、发电机中性点接地和锯齿形变压器对同步发电机产生三次谐波的影响
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523297
M. Abdullah, N. H. Hamid, Z. Baharudin, M. A. Razak, M. Hisham
{"title":"The influence of cable capacitance, generator neutral grounding and zig-zag transformer to third harmonic produced by synchronous generator","authors":"M. Abdullah, N. H. Hamid, Z. Baharudin, M. A. Razak, M. Hisham","doi":"10.1109/ASSCC.2012.6523297","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523297","url":null,"abstract":"Salient pole synchronous generator is one of harmonic sources that causes various power system harmonic problem especially related to neutral. This paper aims to study the characteristics of third harmonic voltage and current from generator when connected to balanced load via cable, generator load connection with different generator neutral grounding resistor and generator load connection shunted by zig-zag transformer. Lab scale experiments have been conducted to vary all parameters related to cable capacitor and generator neutral grounding resistor under various combined resistive and inductive load. Cable capacitance which depends on cable length, size and number of parallel cable, combined with load impedance determines the third harmonic current magnitude. The presence of cable capacitance that interact with generator inductance resulted to series harmonic resonance at 9th and 15th harmonic order that causes high 9th and 15th harmonic current flowing between generator and cable capacitor. Generator neutral grounding resistor can effectively reduce the third harmonic in the phase and neutral. However care should be taken not to use very high generator neutral grounding resistor that can also restrict earth fault current that may pose problem to the sensitivity of earth fault protection system. Zig-zag transformer efficiently divert third harmonic current from generator to enter the load but high circulating third harmonic current between generator and zig-zag transformer may pose heating problem to the equipments.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124356828","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
Modeling the consumer of the future — A dynamic simulation approach 为未来的消费者建模——一种动态仿真方法
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523276
L. Pinto, J. Szczupak, R. Semolini, R. Mandredini, R. Massaro
{"title":"Modeling the consumer of the future — A dynamic simulation approach","authors":"L. Pinto, J. Szczupak, R. Semolini, R. Mandredini, R. Massaro","doi":"10.1109/ASSCC.2012.6523276","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523276","url":null,"abstract":"Consumer behavior is usually modeled by past dynamics, extracted from historical records. This paper proposes a new paradigm: the model of the consumer of the future, subject to patterns, choices, technology and possibilities never ever experienced - and therefore not obtainable from the past. Furthermore, we present a new model, based on dynamic simulation techniques, able to capture the future evolutions and consumer's reactions. A case study with the Brazilian pre-salt oil exploitation, its impacts on country's economy - and, therefore, on energy consumption patterns - illustrates the potentiality of the described concepts and models.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"109 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124290069","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
A research for time-varying power in power electric power system 电力系统中时变功率的研究
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523300
Tang Kun-ming, Wang Hongliang, Luo Jian
{"title":"A research for time-varying power in power electric power system","authors":"Tang Kun-ming, Wang Hongliang, Luo Jian","doi":"10.1109/ASSCC.2012.6523300","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523300","url":null,"abstract":"Traditional sinusoidal power theory is not feasible for non-sinusoidal condition. The existing non-sinusoidal power theories have no clear physical meanings. To solve this problem, this paper presents a time-varying power theory based on the instantaneous sinusoidal expression of DFT (Discrete Fourier Transform). For arbitrary voltage and current signals, use the DFT to get their sinusoidal expression, and calculate the time-varying active power and the time-varying reactive power. This definition is feasible for any periodical and non-periodical signals. It has a distinct physical meanings, especially the time-varying reactive power can show the scale and direction of load's electromagnetic energy oscillation. It can embrace the sinusoidal power, Budeanu power and Fryze'active power. Finally, the rationality and feasibility of this time-varying power is demonstrated by theoretical analysis and work examples.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"9 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130130631","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
Investigation of VRB-ESS integrated with hybrid power system for building VRB-ESS与建筑混合动力系统集成的研究
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523313
Wynn Chen, Jiyun Zhao
{"title":"Investigation of VRB-ESS integrated with hybrid power system for building","authors":"Wynn Chen, Jiyun Zhao","doi":"10.1109/ASSCC.2012.6523313","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523313","url":null,"abstract":"Beneficial in terms of improved reliability, energy services, operational life and energy efficiency, VRB-ESS and its integrated power system have brought forth the highest form of perfection in generation and distribution. This paper analyzes the interaction among components of hybrid power system (HPS), as well as the relative size of the components that is used efficiently at an optimum rate. Using developed Microsoft excel methodology, the different HPSs have been simulated for the building load profile and aim to optimize the averaged unit energy cost - US$ per kWh for each configuration of HPS.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129271596","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
Control of a 3-phase 4 wire grid connected converter with active power filter and var compensation functionality for nonlinear loads 具有有源滤波和无功补偿功能的三相四线电网连接变流器的非线性负载控制
2012 10th International Power & Energy Conference (IPEC) Pub Date : 2012-11-01 DOI: 10.1109/ASSCC.2012.6523303
Sakda Prommeuan, V. Kinnares, C. Charumit
{"title":"Control of a 3-phase 4 wire grid connected converter with active power filter and var compensation functionality for nonlinear loads","authors":"Sakda Prommeuan, V. Kinnares, C. Charumit","doi":"10.1109/ASSCC.2012.6523303","DOIUrl":"https://doi.org/10.1109/ASSCC.2012.6523303","url":null,"abstract":"This paper presents control of real power and reactive power together with active filter functionality of a grid connected voltage source converter for 3-phase, 4 wire system in order to eliminate harmonic currents associated with non-linear load in each phase. A classical instantaneous real and reactive power control method is used together with a harmonic elimination technique. A three-phase voltage source converter is used to control the reference current based on fixed hysteresis band current control. The active and reactive power are independently controlled whilst the grid current is compensated to be nearly sinusoidal waveform. The simulation results verify the correctness of operation for the proposed functions using MATLAB/Simulink.","PeriodicalId":341348,"journal":{"name":"2012 10th International Power & Energy Conference (IPEC)","volume":"159 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122858368","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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