2007 iREP Symposium - Bulk Power System Dynamics and Control - VII. Revitalizing Operational Reliability最新文献_第7页

On the assessment of the impact of a conventional HVDC on a test power system 传统高压直流输电对试验电力系统影响的评估

2007 iREP Symposium - Bulk Power System Dynamics and Control - VII. Revitalizing Operational Reliability Pub Date : 2007-12-26 DOI: 10.1109/IREP.2007.4410514

R. Eriksson, V. Knazkins, L. Soder

{"title":"On the assessment of the impact of a conventional HVDC on a test power system","authors":"R. Eriksson, V. Knazkins, L. Soder","doi":"10.1109/IREP.2007.4410514","DOIUrl":"https://doi.org/10.1109/IREP.2007.4410514","url":null,"abstract":"There are several possibilities to improve the first swing transient stability in a power system. One adequate option is to use the high controllability of the HVDC if HVDC is available in the system. This paper presents a control strategy for HVDC to improve the first swing transient. The strategy controls the power through the HVDC to make the system more transient stable during disturbances. The proposed control strategy consists of the PD-controller and feed-forward control, the use of a PD-controller is appropriate since it has the property of fast response. To improve the first swing oscillation even more the feed-forward control is used, since the behavior of system due to the disconnection is known. Two bench mark power systems are subjected to large disturbances to examine the effectiveness of the proposed strategy. Depending on how the power through the HVDC is controlled the transients damp differently. The PD-controller works well and damps the first swing oscillation transient so the system remains stable. When a power step also is applied after the line is disconnected, the transient swing becomes lower and the behaviour of the system is better. There is also a possibility to improve the first swing oscillation even more, by applying a power step through the HVDC which will compensate for the lack of power due to the disconnection of the line caused by the disturbance.","PeriodicalId":214545,"journal":{"name":"2007 iREP Symposium - Bulk Power System Dynamics and Control - VII. Revitalizing Operational Reliability","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125931116","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

The power Angle and Phase Measurement Units based Wide Area Measurement System and its application 基于广域测量系统的功率角和相位测量单元及其应用

2007 iREP Symposium - Bulk Power System Dynamics and Control - VII. Revitalizing Operational Reliability Pub Date : 2007-12-26 DOI: 10.1109/IREP.2007.4410573

Yuqing Jin, C. Qin, Feng Wu, Jingdong Han, Qun Xu, Deng-jun Yan, P. Ju

{"title":"The power Angle and Phase Measurement Units based Wide Area Measurement System and its application","authors":"Yuqing Jin, C. Qin, Feng Wu, Jingdong Han, Qun Xu, Deng-jun Yan, P. Ju","doi":"10.1109/IREP.2007.4410573","DOIUrl":"https://doi.org/10.1109/IREP.2007.4410573","url":null,"abstract":"A new method for the measurement of the rotor angles and the phasors of power systems is proposed in this paper. Based on this method, the angle and phase measurement unit (APMU) has been developed. The rotor angles can be measured directly with speed signals of generators instead of being calculated with the power equations of the generator. Hence, the measurement precision of the rotor angle is improved. Based on the APMU and the Global Position System (GPS), a wide area measurement system (WAMS) has been constructed in the HeNan power grid (HNPG), China. The control center for the WAMS was also developed. The server in the control center collects the real-time data from all the APMUs, analyzes the operation state of the power network, records the dynamic responses of the power system under disturbances, and displays the information with the graphical user interface (GUI). The measurements were also applied in the detection of low frequency oscillation, on-line state estimation and parameter estimation of synchronous generators.","PeriodicalId":214545,"journal":{"name":"2007 iREP Symposium - Bulk Power System Dynamics and Control - VII. Revitalizing Operational Reliability","volume":"158 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122427332","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

A fault current limiter based on an LC resonant circuit: Design, scale model and prototype field tests 基于LC谐振电路的故障限流器:设计、比例模型和样机现场试验

2007 iREP Symposium - Bulk Power System Dynamics and Control - VII. Revitalizing Operational Reliability Pub Date : 2007-12-26 DOI: 10.1109/IREP.2007.4410570

H. Sarmiento

引用次数: 26

Towards quantifying cascading blackout risk 面向量化级联停电风险

2007 iREP Symposium - Bulk Power System Dynamics and Control - VII. Revitalizing Operational Reliability Pub Date : 2007-12-26 DOI: 10.1109/IREP.2007.4410554

I. Dobson, K. R. Wierzbicki, Janghoon Kim, Hui Ren

引用次数: 26

Dynamics of a microgrid supplied by solid oxide fuel cells 固体氧化物燃料电池提供的微电网动力学

2007 iREP Symposium - Bulk Power System Dynamics and Control - VII. Revitalizing Operational Reliability Pub Date : 2007-12-26 DOI: 10.1109/IREP.2007.4410564

Eric M. Fleming, I. Hiskens

引用次数: 32

Circuit of the future: Interoperability and SCE’s DER program 未来的电路:互操作性和SCE的DER程序

2007 iREP Symposium - Bulk Power System Dynamics and Control - VII. Revitalizing Operational Reliability Pub Date : 2007-12-26 DOI: 10.1109/IREP.2007.4410555

S. Hamilton, C. Vartanian, M. E. Johnson, A. Feliachi, K. Schoder, P. Hines

引用次数: 3

Denoising electrical signal via Empirical Mode Decomposition 基于经验模态分解的电信号降噪方法

2007 iREP Symposium - Bulk Power System Dynamics and Control - VII. Revitalizing Operational Reliability Pub Date : 2007-12-26 DOI: 10.1109/IREP.2007.4410516

V. Agarwal, L. Tsoukalas

引用次数: 23

Relay margin trajectory based identification of transmission vulnerability for power system security assessment 基于继电裕度轨迹的输电脆弱性识别在电力系统安全评估中的应用

2007 iREP Symposium - Bulk Power System Dynamics and Control - VII. Revitalizing Operational Reliability Pub Date : 2007-12-26 DOI: 10.1109/IREP.2007.4410544

Hua Bai, V. Ajjarapu

{"title":"Relay margin trajectory based identification of transmission vulnerability for power system security assessment","authors":"Hua Bai, V. Ajjarapu","doi":"10.1109/IREP.2007.4410544","DOIUrl":"https://doi.org/10.1109/IREP.2007.4410544","url":null,"abstract":"In this paper relay margin is derived in terms of bus voltage. With the variation of bus voltage during system disturbance the relay margin will also consequently vary to form a trajectory which is proposed as the relay margin trajectory. The sensitivity of the relay margin trajectory is investigated to quantify the rate of the relay margin variation. Based on the relay margin we propose a vulnerable relay indicator which samples the smallest relay margin over the interested time span. Based on the vulnerable relay indicator, another two indicators--severe contingency indicator and system security indicator are proposed. These three inherently related indicators together compose a framework for system security analysis. Vulnerable relay indicator is applied to identify the most vulnerable relays based on which the severe contingency indicator is obtained. System security indicator is sequentially gained based on those two indicators to identify the transmission vulnerability for the power system security analysis. Numerical test result on a test system is presented.","PeriodicalId":214545,"journal":{"name":"2007 iREP Symposium - Bulk Power System Dynamics and Control - VII. Revitalizing Operational Reliability","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122452222","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

The effect of improved system modeling in the continuation power flow method 改进系统建模在连续潮流法中的效果

2007 iREP Symposium - Bulk Power System Dynamics and Control - VII. Revitalizing Operational Reliability Pub Date : 2007-12-26 DOI: 10.1109/IREP.2007.4410543

E. Lopez-Luis, M.A. Garcia-Dominguez, D. Ruiz-Vega

引用次数: 1

Risk assessment approach for re-regulated distribution systems 再管制配电系统的风险评估方法

2007 iREP Symposium - Bulk Power System Dynamics and Control - VII. Revitalizing Operational Reliability Pub Date : 2007-12-26 DOI: 10.1109/IREP.2007.4410528

A. Chowdhury, D. Koval

{"title":"Risk assessment approach for re-regulated distribution systems","authors":"A. Chowdhury, D. Koval","doi":"10.1109/IREP.2007.4410528","DOIUrl":"https://doi.org/10.1109/IREP.2007.4410528","url":null,"abstract":"In an attempt to re-regulate the distribution segment of an electric power system, public utility commissions (PUCs) are increasingly adopting a reward/penalty framework in order to guarantee acceptable electric supply reliability. This reward/penalty framework is commonly known as performance based ratemaking (PBR). A PBR framework is introduced to provide distribution utilities with incentives for economic efficiency gains in the competitive generation and transmission markets. A distribution utility's historical reliability performance records could be utilized to create practical PBR mechanisms. This paper presents actual reliability performance history from two different Canadian utilities used to develop PBR frameworks for use in a re-regulated environment. An analysis of financial risk related to historic reliability data is presented by including reliability index probability distributions in a PBR plan. In addition, this paper identifies a number of factors and issues that should be considered in generating a PBR plan for a distribution utility. A brief analysis of cause contributions to reliability indices also is performed and presented in this paper. The historic reliability based PBR framework developed in this paper will find practical applications in the emerging deregulated electricity market.","PeriodicalId":214545,"journal":{"name":"2007 iREP Symposium - Bulk Power System Dynamics and Control - VII. Revitalizing Operational Reliability","volume":"127 28","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113939828","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