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2015 IEEE Eindhoven PowerTech最新文献

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Impact of offshore wind and conventional generation outages on the dynamic performance of AC-DC transmission systems 海上风电和常规发电中断对交直流输电系统动态性能的影响
2015 IEEE Eindhoven PowerTech Pub Date : 2015-09-03 DOI: 10.1109/PTC.2015.7232397
M. Ndreko, M. Popov, J. Rueda-Torres, M. V. D. van der Meijden
{"title":"Impact of offshore wind and conventional generation outages on the dynamic performance of AC-DC transmission systems","authors":"M. Ndreko, M. Popov, J. Rueda-Torres, M. V. D. van der Meijden","doi":"10.1109/PTC.2015.7232397","DOIUrl":"https://doi.org/10.1109/PTC.2015.7232397","url":null,"abstract":"The impact of offshore wind power and conventional generation outages on the dynamic performance of multi terminal DC interfaced AC systems is ascertained in this paper. In addition, the paper addresses the share of primary frequency reserves as well as synthetic inertia response between MTDC connected AC systems focusing on the interactions between the direct voltage control loop and the dedicated primary and synthetic inertia response control loops. The classical single machine modeling approach is used for the AC systems extended by common dynamic models of MTDC grids in a so called simple AC-DC model adequate for frequency stability studies. The results of this paper can be used as reference for grid code design and optimization of MTDC grid control loops operating next to AC power systems.","PeriodicalId":193448,"journal":{"name":"2015 IEEE Eindhoven PowerTech","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130473508","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: 6
A fundamental study on the impact of HVDC lines on transient stability of power systems 高压直流线路对电力系统暂态稳定影响的基础研究
2015 IEEE Eindhoven PowerTech Pub Date : 2015-09-03 DOI: 10.1109/PTC.2015.7232474
L. Sigrist, F. Echavarren, L. Rouco, P. Panciatici
{"title":"A fundamental study on the impact of HVDC lines on transient stability of power systems","authors":"L. Sigrist, F. Echavarren, L. Rouco, P. Panciatici","doi":"10.1109/PTC.2015.7232474","DOIUrl":"https://doi.org/10.1109/PTC.2015.7232474","url":null,"abstract":"An increasing number of HVDC lines are currently deployed all around the world. HVDC links are either based on line-commutated converters (LCC) or on voltage-source converters (VSC) technologies. This paper presents a fundamental study on the impact of HVDC links on the transient stability of power systems. Both, VSC and LCC HVDC links have been studied when applied to a two-area power system. Particular attention has been paid to the critical clearing time (CCT). It has been found that HVDC links generally improve transient stability by increasing the critical clearing time with respect to the case without HVDC link. Moreover, the impact on transient stability significantly depends on the supervisory control strategies applied to the LCCs and VSCs of the HVDC links. An inappropriate handling of current limits of VSC by reducing either active or reactive power can worsen transient stability.","PeriodicalId":193448,"journal":{"name":"2015 IEEE Eindhoven PowerTech","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128782069","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: 19
Protection coordination in modern distribution grids integrating optimization techniques with adaptive relay setting 集成优化技术和自适应继电整定的现代配电网保护协调
2015 IEEE Eindhoven PowerTech Pub Date : 2015-09-03 DOI: 10.1109/PTC.2015.7232558
V. Papaspiliotopoulos, G. Korres, N. Hatziargyriou
{"title":"Protection coordination in modern distribution grids integrating optimization techniques with adaptive relay setting","authors":"V. Papaspiliotopoulos, G. Korres, N. Hatziargyriou","doi":"10.1109/PTC.2015.7232558","DOIUrl":"https://doi.org/10.1109/PTC.2015.7232558","url":null,"abstract":"The constantly increasing integration of distributed generation (DG) using renewable energy resources, as well as the wide application of microgrid conception, has posed several challenging problems to the existing protection and control systems. Hence, modern adaptive protection schemes, capable of anticipating potential protection issues, are being developed and implemented. In this paper, the prospect of integrating optimal relay coordination methods with adaptive protection schemes is introduced. The efficacy of the proposed strategy is assessed by simulating two different DG penetrated networks with various configurations, and the obtained results are discussed in detail.","PeriodicalId":193448,"journal":{"name":"2015 IEEE Eindhoven PowerTech","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126634355","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: 18
Sensitivity analysis of local flexibilities for voltage regulation in unbalanced LV distribution system 不平衡低压配电系统电压调节局部柔性的灵敏度分析
2015 IEEE Eindhoven PowerTech Pub Date : 2015-09-03 DOI: 10.1109/PTC.2015.7232627
E. Vanet, S. Touré, N. Kechagia, R. Caire, N. Hadjsaid
{"title":"Sensitivity analysis of local flexibilities for voltage regulation in unbalanced LV distribution system","authors":"E. Vanet, S. Touré, N. Kechagia, R. Caire, N. Hadjsaid","doi":"10.1109/PTC.2015.7232627","DOIUrl":"https://doi.org/10.1109/PTC.2015.7232627","url":null,"abstract":"The present paper introduces a method for voltage profile mitigation aiming at solving voltage deviations through LV flexibility activation based on voltage sensitivity analysis in unbalanced LV distribution system. This method aims to help the DSO to benefit of the flexibility available on a given LV network to solve voltage constraints, while minimizing the cost of LV flexibility offer activation. First, the three-phase voltage sensitivity matrix formulation is presented, in order to compute voltage sensitivity coefficients with respect to node power modulation in each phase. Then, two heuristic methods are compared in order to solve voltage deviations in a LV unbalanced system while minimizing flexibility activation cost. An ameliorative heuristic method is also presented in order to refine the solution. Test results of these methods applied for a LV unbalanced distribution system are then displayed and compared to MINLP resolution.","PeriodicalId":193448,"journal":{"name":"2015 IEEE Eindhoven PowerTech","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126746816","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: 7
A simplified steady-state characterization of long AC transmission lines 长交流传输线的简化稳态特性
2015 IEEE Eindhoven PowerTech Pub Date : 2015-09-03 DOI: 10.1109/PTC.2015.7232565
J. C. del-Pino-López, Pedro Cruz-Romero, A. Gómez-Expósito
{"title":"A simplified steady-state characterization of long AC transmission lines","authors":"J. C. del-Pino-López, Pedro Cruz-Romero, A. Gómez-Expósito","doi":"10.1109/PTC.2015.7232565","DOIUrl":"https://doi.org/10.1109/PTC.2015.7232565","url":null,"abstract":"In this paper, a simplified formulation of the steady-state, distributed-parameter model of AC transmission lines is presented, which is sufficiently accurate in practice for very long lines. The simplification stems from a reduction in the number of parameters involved in the model and provides a better understanding of the effect that the remaining parameters have on the line performance (i.e., transmission capability, power losses, voltage drop, etc.) at different voltage levels and line lengths.","PeriodicalId":193448,"journal":{"name":"2015 IEEE Eindhoven PowerTech","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123306673","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
An equivalent electric circuit for the thermal Network of the Savona Campus Smart Polygeneration Microgrid 萨沃纳校园智能多代微电网热网络的等效电路
2015 IEEE Eindhoven PowerTech Pub Date : 2015-09-03 DOI: 10.1109/PTC.2015.7232394
L. Barillari, S. Bracco, M. Brignone, F. Delfino, F. Pampararo, C. Pacciani, R. Procopio, M. Rossi, A. Nilberto
{"title":"An equivalent electric circuit for the thermal Network of the Savona Campus Smart Polygeneration Microgrid","authors":"L. Barillari, S. Bracco, M. Brignone, F. Delfino, F. Pampararo, C. Pacciani, R. Procopio, M. Rossi, A. Nilberto","doi":"10.1109/PTC.2015.7232394","DOIUrl":"https://doi.org/10.1109/PTC.2015.7232394","url":null,"abstract":"The paper proposes a model for the thermal network of the Savona Campus Smart Polygeneration Microgrid (SPM) in terms of an equivalent electric circuit. Such model allows to represent in a simple but accurate way the behavior of the SPM thermal network in order to insert it into the Energy Management System (EMS) that is presently running in the SPM control room. The parameters of the thermal circuit are identified by means of an algorithm that minimizes the difference between the temperature profile as calculated with the circuit and the measured one.","PeriodicalId":193448,"journal":{"name":"2015 IEEE Eindhoven PowerTech","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123043311","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
Monte Carlo simulation applied to support risk-based decision making in electricity distribution networks 蒙特卡罗模拟在配电网风险决策中的应用
2015 IEEE Eindhoven PowerTech Pub Date : 2015-09-03 DOI: 10.1109/PTC.2015.7232494
Shiromani A. V. Goerdin, J. Smit, R. Mehairjan
{"title":"Monte Carlo simulation applied to support risk-based decision making in electricity distribution networks","authors":"Shiromani A. V. Goerdin, J. Smit, R. Mehairjan","doi":"10.1109/PTC.2015.7232494","DOIUrl":"https://doi.org/10.1109/PTC.2015.7232494","url":null,"abstract":"Risk management, as a decision-making process, is a key enabler in successful asset management for asset intensive industries such as electricity network companies. With the introduction of PAS55 and more recently the ISO55000 for asset management, there is an increasing need for probabilistic risk modelling tools. In this paper the methodology of Monte Carlo Simulation (MCS) has been adopted and the potential utilization of this for risk-based asset management decision-making purposes has been investigated for a Dutch Distribution System Operator (DSO), Stedin. Several case studies with the focus on the prediction of customer interruptions in the electrical distribution networks are performed with the main focus on medium voltage (MV) cables and cable joint failures. The MCS is performed for 12 MV radial feeder systems. For each cable section and cable joint separate failure distribution models have been used to characterize the failure behavior on the basis of historical data and statistical life data analysis. This information is used as input for the MCS. On the whole, it can be concluded that all historical actual occurred outages for these 12 feeder systems were possible outcomes from the MCS simulations. This implies that the amount of customer outages could have been predicted through the MCS. Therefore, on the basis of this work, the utilization of MCS for risk based decision-making for DSOs as part of their asset management system is recommended.","PeriodicalId":193448,"journal":{"name":"2015 IEEE Eindhoven PowerTech","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126304106","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
Vulnerability analysis related to extraordinary events in power systems 电力系统异常事件脆弱性分析
2015 IEEE Eindhoven PowerTech Pub Date : 2015-09-03 DOI: 10.1109/PTC.2015.7232388
G. Kjølle, O. Gjerde
{"title":"Vulnerability analysis related to extraordinary events in power systems","authors":"G. Kjølle, O. Gjerde","doi":"10.1109/PTC.2015.7232388","DOIUrl":"https://doi.org/10.1109/PTC.2015.7232388","url":null,"abstract":"A novel approach is developed for analyzing power system vulnerability related to extraordinary events. Vulnerability analyses are necessary for identification of barriers to prevent such events and as a basis for the emergency preparedness. Identification of cause and effect relationships to reveal vulnerabilities related to extraordinary events is a complex and difficult task. In the proposed approach, the analysis starts by identifying the critical consequences. Then the critical contingencies and operating states, and which external threats and causes that may result in such severe consequences, are identified. This is opposed to the traditional risk and vulnerability analysis which starts by analyzing threats and what can happen as a chain of events. The vulnerability analysis methodology is tested and demonstrated on real systems.","PeriodicalId":193448,"journal":{"name":"2015 IEEE Eindhoven PowerTech","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116757555","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: 16
Nodal load approximation in sparsely measured 4-wire electrical low-voltage grids by stochastic optimization 稀疏测量四线低压电网节点负荷的随机优化逼近
2015 IEEE Eindhoven PowerTech Pub Date : 2015-09-03 DOI: 10.1109/PTC.2015.7232651
P. Huppertz, M. Schallenburger, R. Zeise, M. Kizilcay
{"title":"Nodal load approximation in sparsely measured 4-wire electrical low-voltage grids by stochastic optimization","authors":"P. Huppertz, M. Schallenburger, R. Zeise, M. Kizilcay","doi":"10.1109/PTC.2015.7232651","DOIUrl":"https://doi.org/10.1109/PTC.2015.7232651","url":null,"abstract":"In this paper a new method to approximate nodal loads of a low-voltage grid using few measurements is presented. The performance is evaluated within two commonly occurring grid topologies. Highly unbalanced loads are associated to random nodes which represent the true state of the grid. Based on few line-to-neutral voltages and nodal-load measurements an objective function is evaluated and minimized by stochastic optimization using the simulated annealing algorithm. As unbalanced nodal loads produce a neutral shift, the use of a 4-wire load-flow algorithm is therefore mandatory. The accuracy of this load approximation technique, with respect to a sensitivity analysis of the optimization parameters, is presented. Possible areas of application for this method are state-estimation and future system-operators' decision supporting algorithms.","PeriodicalId":193448,"journal":{"name":"2015 IEEE Eindhoven PowerTech","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125011793","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
Modular modelling of combined AC and DC systems in dynamic simulations 交直流组合系统动态仿真的模块化建模
2015 IEEE Eindhoven PowerTech Pub Date : 2015-09-03 DOI: 10.1109/PTC.2015.7232324
P. Aristidou, L. Papangelis, X. Guillaud, T. Van Cutsem
{"title":"Modular modelling of combined AC and DC systems in dynamic simulations","authors":"P. Aristidou, L. Papangelis, X. Guillaud, T. Van Cutsem","doi":"10.1109/PTC.2015.7232324","DOIUrl":"https://doi.org/10.1109/PTC.2015.7232324","url":null,"abstract":"A formulation is proposed in which an AC-DC system is modeled as a combination of AC grids, DC grids, injectors, AC two-ports and AC/DC converters, respectively. This modular modelling facilitates the dynamic simulation of future complex AC/DC systems. Furthermore, it can be exploited by the solver, which performs less operations on components with lower dynamic activity, and offers parallel processing of the time simulation. This approach is illustrated on a test system in which a multi-terminal DC grid connects two asynchronous AC systems, allows frequency support between them, and acts as emergency control against AC voltage instability.","PeriodicalId":193448,"journal":{"name":"2015 IEEE Eindhoven PowerTech","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116625967","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: 6
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