S. Martín-Martínez, E. Gómez-Lázaro, Á. Molina-García, A. Honrubia-Escribano
{"title":"Impact of wind power curtailments on the Spanish Power System operation","authors":"S. Martín-Martínez, E. Gómez-Lázaro, Á. Molina-García, A. Honrubia-Escribano","doi":"10.1109/PESGM.2014.6939535","DOIUrl":"https://doi.org/10.1109/PESGM.2014.6939535","url":null,"abstract":"The increasing level of wind power capacity in the Spanish electrical system imposes a remarkable influence on the system operation and costs. The notable impact caused by this type of renewable energy source is of particular interest because the Iberian Peninsula Power System presents weak interconnections with other countries. In this scenario, wind power fluctuations can also affect the security, reliability and even the stability of the power system. Moreover, the lack of flexibility during periods of low demand, in combination with wind power variability and uncertainty, may lead to transmission and distribution saturations and power imbalances, where wind power curtailments are commonly accepted as a suitable solution to mitigate these problems. This paper describes different wind power curtailment scenarios and the corresponding evolution of operational procedures carried out by the Spanish TSO during the last years. Several wind curtailment scenarios measured in the Spanish electrical system are analyzed, discussing the operational decisions and techniques developed depending on demand and generation flexibility. This paper presents thus interesting results for TSO Companies as well as the whole wind energy industry, where a better knowledge of wind energy impact on electrical networks is needed.","PeriodicalId":149134,"journal":{"name":"2014 IEEE PES General Meeting | Conference & Exposition","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123641816","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}
{"title":"Modeling Smart Grid adoption via a social network model","authors":"Alex Cassidy, A. Nehorai","doi":"10.1109/PESGM.2014.6938910","DOIUrl":"https://doi.org/10.1109/PESGM.2014.6938910","url":null,"abstract":"Smart Grid Technologies are poised to radically transform the way energy is used. Analyses of the workings of smart grid and its effects have been investigated in numerous existing works. Adoption of smart grid, however, has not been. Modeling this adoption poses problems not found in other work on technology adoption, since the behaviors of individual users can affect other users in complex ways. This contrasts with earlier work, where effects between users tend to be strictly positive or strictly negative. In this paper, we introduce a model of smart grid adoption based on social networks. Our model is highly modular and therefore is well-suited to study the effects of each component. We find that for widespread adoption of smart grid demand response technology, utility companies should educate the populace about smart grid, make sure they are releasing it into connected communities, and should not sell non-smart-grid electricity too cheaply.","PeriodicalId":149134,"journal":{"name":"2014 IEEE PES General Meeting | Conference & Exposition","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121304432","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}
{"title":"A small-signal stability index for power system dynamic impact assessment using time-domain simulations","authors":"F. R. S. Sevilla, L. Vanfretti","doi":"10.1109/PESGM.2014.6938842","DOIUrl":"https://doi.org/10.1109/PESGM.2014.6938842","url":null,"abstract":"In this paper, a three layer small-signal stability index to assess power system dynamic simulations is presented. The index is calculated from an estimate of the eigenvalues of the system, which are determined using time-series from dynamic simulations. The methodology assumes that no other information about the system (model) is available. In the first layer, which is the main future of the index, a scalar (positive or negative) indicates if any of the modes have a damping ratio less than a predefined value. In the second layer, a vector is used to specify which pre-defined damping ratios were violated and finally, in the third layer a matrix is used to retrieve precise information about which mode has violated the pre-defined damping requirements of the system. The proposed index is first illustrated using synthetic data and then the index is validated using simulation data from the KTH-Nordic32 system.","PeriodicalId":149134,"journal":{"name":"2014 IEEE PES General Meeting | Conference & Exposition","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114222014","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}
{"title":"Transient voltage compensation by a power electronics-based device","authors":"Gabriel E. Mejia Ruiz, N. Munoz, J. Ramirez","doi":"10.1109/PESGM.2014.6939083","DOIUrl":"https://doi.org/10.1109/PESGM.2014.6939083","url":null,"abstract":"Dynamic Voltage Restorers (DVR) provide an advanced and economical solution for voltage sag/swell events. Such devices are used to protect sensitive loads on distribution electrical systems, placing it in series with sensitive loads. This paper presents a single-phase DVR performance under such events, able to compensate sags/swells in two cycles. A peak detector and the in-phase compensation method are used to get quick and accurate responses. The digital control system is implemented on the CompactRIO embedded system, and is programmed in LabVIEW software. The effectiveness of the proposed DVR system is verified and validated through simulations and experimental tests.","PeriodicalId":149134,"journal":{"name":"2014 IEEE PES General Meeting | Conference & Exposition","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121494489","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}
{"title":"Grid-connected wind power capacity optimization based on the principle of maximum entropy","authors":"Qiaoyan Bian, Qian Xu, Liying Sun, Leiqi Zhang, Hao Wu, H. Xin","doi":"10.1109/PESGM.2014.6939396","DOIUrl":"https://doi.org/10.1109/PESGM.2014.6939396","url":null,"abstract":"As the uncertain renewable resources challenge the conventional power system operations and planning, in this paper, information theory is introduced to find the most possibly realized probability distribution - the `best' distribution scenario, of the uncertain factors. A chance-constrained model is then formulated based on the maximum entropy principle for the wind power capacity optimization problem. The constraints of power network limit and equipment operation bounds are considered. A numerical study of IEEE case 30 is used to demonstrate the effectiveness of the proposed method.","PeriodicalId":149134,"journal":{"name":"2014 IEEE PES General Meeting | Conference & Exposition","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114695047","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}
Fengkai Hu, K. Sun, A. del Rosso, E. Farantatos, N. Bhatt
{"title":"An adaptive three-bus power system equivalent for estimating voltage stability margin from synchronized phasor measurements","authors":"Fengkai Hu, K. Sun, A. del Rosso, E. Farantatos, N. Bhatt","doi":"10.1109/PESGM.2014.6939177","DOIUrl":"https://doi.org/10.1109/PESGM.2014.6939177","url":null,"abstract":"This paper utilizes an adaptive three-bus power system equivalent for measurement-based voltage stability analysis. With that equivalent identified online, a measurement-based approach is developed to estimate real-time voltage stability margin for a load-rich area supported by remote generation via multiple tie lines. Compared with traditional Thevenin equivalent based approach, this new approach is able to provide more accurate voltage stability margin for each individual tie line. This approach is validated on a three-bus system and the IEEE 39-bus system.","PeriodicalId":149134,"journal":{"name":"2014 IEEE PES General Meeting | Conference & Exposition","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114748907","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}
{"title":"Model validation for improving state estimation","authors":"Yinhua Guo, Jeff Penrice, Vivian Cheuk","doi":"10.1109/PESGM.2014.6939187","DOIUrl":"https://doi.org/10.1109/PESGM.2014.6939187","url":null,"abstract":"This paper describes some of the practical issues for validating power system models and application results in order to improve state estimation solution quality and reliability. Hydro One made systematic efforts in model error identification and parameter tuning to achieve satisfactory state estimator performance for real time operations. Some of the experiences, challenges and results are presented.","PeriodicalId":149134,"journal":{"name":"2014 IEEE PES General Meeting | Conference & Exposition","volume":"305 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124351610","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}
Ling Zhi-bin, Cao Yang, Ma Qin-Dong, Chen Man, Guo Hai-feng, Li Yong-qi
{"title":"Grounding faults of cascade battery energy storage system","authors":"Ling Zhi-bin, Cao Yang, Ma Qin-Dong, Chen Man, Guo Hai-feng, Li Yong-qi","doi":"10.1109/PESGM.2014.6939330","DOIUrl":"https://doi.org/10.1109/PESGM.2014.6939330","url":null,"abstract":"Grounding faults are inevitable when cascade battery energy storage system (CBESS) is in operation, so the detection and protection are very important in the practical application. The possible grounding fault types of the 10kV CBESS and the detection protection method were analyzed. It could be known that single point grounding fault in CBESS could be detected by monitoring CBESS neutral voltage, and there is no overcurrent in circuit. When two points grounding fault or multi-point grounding fault occurred, the faults could be detected by overcurrent protection or short circuit protection of power unit, and the cascaded battery energy storage system should stop operation.","PeriodicalId":149134,"journal":{"name":"2014 IEEE PES General Meeting | Conference & Exposition","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127732450","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}
{"title":"Optimal design of grounding systems for high voltage substations","authors":"A. Ghods, Hong‐Hee Lee, A. Etemadi","doi":"10.1109/PESGM.2014.6939372","DOIUrl":"https://doi.org/10.1109/PESGM.2014.6939372","url":null,"abstract":"Designing grounding systems for high voltage substations has been always considered a serious concern. High losses and costs of performing conventional designs have made researchers think of new substitute plans. The designed system should be able to provide safety for personnel and electrical devices under steady-state operation and transient disturbances. In this paper, a new strategy for designing high voltage substation grounding system is proposed, taking into account relevant IEEE standards. It will be shown that this approach, which is based on CymGrd software package, will have more output parameters that makes the model more efficient, so it can be a sufficient replacement for other conventional methods. One high voltage substation located in northwest Iran is analyzed and then the effectiveness of this method is compared with other methods.","PeriodicalId":149134,"journal":{"name":"2014 IEEE PES General Meeting | Conference & Exposition","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126301451","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}
{"title":"Detection of vulnerable relays and sensitive controllers under cascading events based on performance indices","authors":"Zhou Liu, Zhe Chen, Yanting Hu","doi":"10.1109/PESGM.2014.6939501","DOIUrl":"https://doi.org/10.1109/PESGM.2014.6939501","url":null,"abstract":"The unexpected relay operations have been regarded as one of main reasons to propagate and induce the cascaded blackouts. It is significant to timely detect vulnerable relays to be blocked, and locate sensitive controllers to regulate the emergency states. In this paper, a multi agent system (MAS) based detection strategy is proposed to identify the vulnerable relays and sensitive controllers under the overloading situation during cascading events. Based on the impedance margin sensitivity, diverse performance indices are proposed to help improving this detection. A study case of voltage instability induced cascaded blackout built in real time digital simulator (RTDS) will be used to demonstrate the proposed strategy. The simulation results indicate this strategy can effectively detect the vulnerable relays and sensitive controllers under overloading situations.","PeriodicalId":149134,"journal":{"name":"2014 IEEE PES General Meeting | Conference & Exposition","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126198926","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}