2014 Power Systems Computation Conference最新文献_第9页

Wide area robust centralized power oscillation dampers design for DFIG-based wind turbines 基于dfig的风力发电机组广域鲁棒集中式功率振荡阻尼器设计

2014 Power Systems Computation Conference Pub Date : 2014-08-01 DOI: 10.1109/PSCC.2014.7038435

Tossaporn Surinkaew, I. Ngamroo

{"title":"Wide area robust centralized power oscillation dampers design for DFIG-based wind turbines","authors":"Tossaporn Surinkaew, I. Ngamroo","doi":"10.1109/PSCC.2014.7038435","DOIUrl":"https://doi.org/10.1109/PSCC.2014.7038435","url":null,"abstract":"Inter-area oscillations are associated with machines in one part of the system oscillating against machines in other parts of the system. They are caused by two or more groups of machines that are interconnected by weak ties. To damp out the inter-area oscillations, this paper proposes the new application of wide area stability control for robust centralized power oscillation dampers (PODs) design of doubly-fed induction generator (DFIG) wind turbines. The POD with 2nd-order lead/lag compensator structure for each DFIG wind turbine is located at the control center. To stabilize the target inter-area mode effectively, the geometric measures of controllability and observability are used to choose the suitable DFIG wind turbine for stabilizing the target oscillation mode, the proper input signal of POD, and the location of phasor measurement units (PMUs). The input signal of each POD is obtained from PMU while the output signal is transmitted to the rotor side converter voltage controller of DFIG. As a result, the reactive power output of DFIG can be modulated to damp out inter-area oscillations. In the POD parameters optimization, the wide range of power output levels of DFIGs and synchronous generators, time delays due to wide area communication, and unstructured system uncertainties model are taken into account so that the damping of inter-area modes and the system robust stability margin against uncertainties can be guaranteed. Solving the problem by the firefly algorithm automatically, the optimal parameters of PODs can be achieved. The stabilizing performance and robustness of the proposed robust centralized POD are evaluated in the IEEE New England 39 bus system by eigenvalue analyses and nonlinear simulation in scenarios with severe short circuits, N-1 outage contingencies, heavy power flows, and line tripping.","PeriodicalId":155801,"journal":{"name":"2014 Power Systems Computation Conference","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134402753","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

Impact of substation configuration on protection system failure propagation and its effect on reliability of supply 变电站配置对保护系统故障传播的影响及其对供电可靠性的影响

2014 Power Systems Computation Conference Pub Date : 2014-08-01 DOI: 10.1109/PSCC.2014.7038454

V. V. Vadlamudi, O. Gjerde, G. Kjølle

{"title":"Impact of substation configuration on protection system failure propagation and its effect on reliability of supply","authors":"V. V. Vadlamudi, O. Gjerde, G. Kjølle","doi":"10.1109/PSCC.2014.7038454","DOIUrl":"https://doi.org/10.1109/PSCC.2014.7038454","url":null,"abstract":"Relatively fewer studies exist in literature on including the complex effects of transmission protection system related failure dependencies in the reliability prediction models. Usage of extensive Markov models has been usually advocated to capture the impact of protection system reliability on power system reliability. A new analytical method which makes use of approximate methods of system reliability evaluation has been recently proposed by us, which circumvents the need for Markov models. It is a unique minimal cutset-based approach for single circuit meshed transmission systems, where several basic and load/energy oriented reliability indices are obtained. The objective of this paper is to extend the procedure to examine the impact of substation configurations on protection system failure dependency propagation and its effect on bulk load point reliability indices. Preliminary investigations show a marked impact of employing a station configuration with simplified bus representation, especially in multi circuit meshed transmission systems, on the resulting reliability indices. The results of the proposed methodology are demonstrated on a suitably modified four bus illustrative test system, for cases with and without the consideration of protection system failures for a realistic station configuration.","PeriodicalId":155801,"journal":{"name":"2014 Power Systems Computation Conference","volume":"44 5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132112223","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

Forecast-based network reconfiguration algorithm 基于预测的网络重构算法

2014 Power Systems Computation Conference Pub Date : 2014-08-01 DOI: 10.1109/PSCC.2014.7038419

A. Shapovalov, Christopher Spieker, C. Rehtanz, Torben Engelmeyer

引用次数: 2

Optimizing the reactive power balance between a distribution and transmission grid through iteratively updated grid equivalents 通过迭代更新电网当量优化配电网和输电网之间的无功平衡

2014 Power Systems Computation Conference Pub Date : 2014-08-01 DOI: 10.1109/PSCC.2014.7038344

F. Marten, Lothar Lower, James Tobermann, M. Braun

引用次数: 28

Synchronizing microgrids to the utility through a series compensator 通过串联补偿器将微电网与公用事业同步

2014 Power Systems Computation Conference Pub Date : 2014-08-01 DOI: 10.1109/PSCC.2014.7038482

A. Lerm, L. Braatz, M. F. Cruz, T. L. Riechel, S. L. S. Severo

引用次数: 0

Influence of reliability calculation and simulation of organization structure on quality of supply 组织结构可靠性计算与仿真对供给质量的影响

2014 Power Systems Computation Conference Pub Date : 2014-08-01 DOI: 10.1109/PSCC.2014.7038458

H. Thies, M. Zdrallek, M. Schwan, A. Ettinger

{"title":"Influence of reliability calculation and simulation of organization structure on quality of supply","authors":"H. Thies, M. Zdrallek, M. Schwan, A. Ettinger","doi":"10.1109/PSCC.2014.7038458","DOIUrl":"https://doi.org/10.1109/PSCC.2014.7038458","url":null,"abstract":"Today's regulatory demands are providing incentives for cost reductions to network operators in Germany and several other countries. If no corrective measures are taken by national regulation authorities (NRA), this could result in a reduction of costs at the expense of quality of supply. Thus, in 2011 the German NRA has implemented a quality regulation scheme which incentivizes network operators to integrate aspects of quality of supply in their considerations of cost reductions. This paper presents an approach which calculates the impact of changes of network asset and of operational service staff on the reliability of distribution systems. The approach uses a detailed reliability model to display the network structure, network equipment and customers' loads in order to determine failure events, the respective remedial strategy and the impact on quality of supply. Furthermore, a detailed model of the network operators' organizational structure and operational service staff is used. The effects of changes in operational expenditures (OPEX) and capital expenditures (CAPEX) on the quality of supply can be analyzed individually per customer as well as system-wide. Thus, it is possible to discover weaknesses in the network structure and the organization of service staff. This approach allows network operators to determine the effects of foreseen measures on quality of supply before implementing time-consuming and expensive projects in network and organization.","PeriodicalId":155801,"journal":{"name":"2014 Power Systems Computation Conference","volume":"131 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114655105","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

Stability boundary on P-V plane for analysis of short-term voltage stability 分析短期电压稳定性的P-V平面稳定边界

2014 Power Systems Computation Conference Pub Date : 2014-08-01 DOI: 10.1109/PSCC.2014.7038363

K. Kawabe, Kazuyuki Tanaka

引用次数: 4

Identification of topology faults by smart meter data in meshed low voltage grids 基于智能电表数据的网状低压电网拓扑故障识别

2014 Power Systems Computation Conference Pub Date : 2014-08-01 DOI: 10.1109/PSCC.2014.7038327

W. Wellssow, Dominik Waeresch

{"title":"Identification of topology faults by smart meter data in meshed low voltage grids","authors":"W. Wellssow, Dominik Waeresch","doi":"10.1109/PSCC.2014.7038327","DOIUrl":"https://doi.org/10.1109/PSCC.2014.7038327","url":null,"abstract":"The integration of distributed generation causes an increase of the voltage magnitude in low voltage grids. In addition to classical grid expansion distribution system operators have various options at their hands to reduce the voltage rise, e.g. by installing distribution transformers with on-load tap changers or voltage regulators. For efficient control the network operator need information on relevant operational system parameters. The classical approach of using measurement and monitoring devices from SCADA systems is comparatively too expansive and complex. In future, smart meters can provide information about the relevant operational data. In addition these data can enable the identification of topology faults in meshed low voltage grids. This paper proposes a simple approach for the identification of topology faults including some analysis on the probability of detecting such faults even in case of a scarce population with smart meters. The presented approach includes the preprocessing and plausibility checks of smart meter data, a comparative analysis of measured and calculated voltages and evaluating functions. Despite the simplicity of the process, the results gathered from a field test are promising, provided that line lengths are not too short and currents not too small.","PeriodicalId":155801,"journal":{"name":"2014 Power Systems Computation Conference","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125530984","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: 10

Governor-deadband-induced sliding bifurcations in South-East European Interconnection model 东南欧互联模型中总督-死带诱导的滑动分岔

2014 Power Systems Computation Conference Pub Date : 2014-08-01 DOI: 10.1109/PSCC.2014.7038315

J. Mantzaris, C. Vournas

引用次数: 3

Impact quantification of hypothesized attack scenarios on bus differential relays 母线差动继电器假设攻击情景的影响量化

2014 Power Systems Computation Conference Pub Date : 2014-08-01 DOI: 10.1109/PSCC.2014.7038497

R. Bulbul, Y. Gong, C. Ten, A. Ginter, S. Mei

引用次数: 14