{"title":"Information model for power grid fault diagnosis based on CIM","authors":"Qin Lijun, Hao Cuijuan, Jin Huawei, Li Meng","doi":"10.1109/DRPT.2011.5994013","DOIUrl":"https://doi.org/10.1109/DRPT.2011.5994013","url":null,"abstract":"This paper deals with information model for power grid fault diagnosis based on Common Information Model (CIM). Fault diagnosis gains information from topology information and device parameters of primary system grid based on IEC61970 standard and device information of secondary system grid based on IEC 61850. Device information contains information of protection movement wave record and protection configuration. However, the existent CIM can't fully represent power system fault diagnosis information. Thus, it is need to extend CIM. All kinds of information are based on different model, which causes different information standard. In this paper a preliminary study on CIM extensions which is based on power system fault diagnosis, has been proposed to perfect fault information model. On the basis of different standard model, this paper has discussed the theory of coordinating IEC 61850 and IEC61970 standard, and proposed using Web Ontology Language (OWL) based on Extensible Mark-up Language (XML) to the solution of this problem. A fault Information Model is then provided to the fault diagnosis system according to Component Interface Specification (CIS) in IEC61970. After receiving fault information, the fault diagnosis system starts for real-time, on-line fault diagnosis. Fault information model has solved the problem of the deficiency and non-standard of fault diagnosis information, attaining fault diagnosis information integrity and standardization, and making the fault diagnosis result fast and accurate.","PeriodicalId":162192,"journal":{"name":"2011 4th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT)","volume":"157 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132750358","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 distributed and coordinated voltage control scheme considering voltage recovery","authors":"Zhanga Yan, Zhang Wen, L. Shuai","doi":"10.1109/DRPT.2011.5994033","DOIUrl":"https://doi.org/10.1109/DRPT.2011.5994033","url":null,"abstract":"This paper presents a coordinated emergency voltage control scheme against long-term voltage instability. It uses a set of distributed controller groups, each controller monitors load voltage in a zone and takes local actions to keep the system voltage stable. Emergency actions are coordinated and optimized with information exchanges between controllers, an action criterion is introduced to avoid excessive load shedding by judging the evolution of local voltage recovery condition, which minimizes the total control cost on the basis of fast voltage restoration. The operation, design and effectiveness features have been demonstrated by the case studies on a 12-bus sample network.","PeriodicalId":162192,"journal":{"name":"2011 4th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115470629","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":"Impact of composite dynamic load on the dynamic security region of power systems","authors":"A. Xue, Zhenbo Cao, T. Bi, Jin Li","doi":"10.1109/DRPT.2011.5994039","DOIUrl":"https://doi.org/10.1109/DRPT.2011.5994039","url":null,"abstract":"Dynamic security region (DSR) is one of the direct methods focusing on the transient stability of power system. This paper explores the impact of composite dynamic load (CDL) characteristic on the DSR, which including the load model consisting of constant impedance load and induction motor load (ZM), the load model consisting of constant current load and induction motor load (IM) and the load model consisting of constant power load and induction motor load (PM). As the introduction of the composite dynamic load could lead to the differential-algebraic equation (DAE) structure for power system, this paper presents the algorithm for the DSR of power system with DAE structure, after the presentation of DSR algorithm for power system with ordinary differential equation (ODE) structure. It also presents the models for the composite dynamic load, i.e., ZM load, IM load and PM load. And then, based on the simulation results, the DSRs of composite dynamic load are described. Finally, the impact of composite dynamic load on the DSR is summarized.","PeriodicalId":162192,"journal":{"name":"2011 4th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116596609","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":"Fault diagnosis of 3/2 Breaker Scheme in substation based on Petri net","authors":"Z. Tao, Chen Qing, Gao Zhanjun","doi":"10.1109/DRPT.2011.5993915","DOIUrl":"https://doi.org/10.1109/DRPT.2011.5993915","url":null,"abstract":"In substations of power system, 3/2 Breaker Scheme are used commonly. Its protective relay configuration is complex, There is a lot of information when the fault occurs, especially when the protective relays and circuit breakers fail to work, how to determine the fault element is particularly intricate. In view of features of 3/2 Breaker Scheme Fault Diagnosis, this paper put forwards a new fault diagnosis method based on fault associated tree. In this new fault diagnosis method, the fault associated tree is defined to describe the time-space properties logic according to the relay protection logic's cooperation, which is created for every possible fault primary component according breaker-primary component association. Then the action priority of protections and breakers are sorted according to their priorities and mapped to the dynamic model of the Petri net, which avoid the rings of 3/2 Breaker Scheme. The proposed model could not only estimate the fault section, but also identify the malfunctioned Protective Relays and Circuit Breakers as well as the missing and/or false alarms. The simulation results given in this paper illustrate that this fault diagnosis method can make a rapid diagnosis and give the accurate evaluation about the 3/2 Breaker Scheme faults.","PeriodicalId":162192,"journal":{"name":"2011 4th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT)","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116639961","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 real-time dynamic equivalent solution for large interconnected power systems","authors":"Zhou Yang, Wang Kui, Zhang Bu-han","doi":"10.1109/DRPT.2011.5994014","DOIUrl":"https://doi.org/10.1109/DRPT.2011.5994014","url":null,"abstract":"Dynamic equivalent has been a basic approach for analysis and computation of large scale-increasing interconnected power systems in China. Security defense of power systems and real-time monitoring of system states require more rapid and effective computation of large power grids. This paper introduces a solution for real-time dynamic equivalent of large multi-area power systems. It is based on real-time measurement data from Wide Area Measurement System and parameter identification. A parallel dynamic equivalent model composed of an equivalent generator and an equivalent synthesis load was put forward, in which the equivalent generator uses a 3rd order electromechanical transient model with damping while the equivalent synthesis load uses a static characteristic model considering both voltage and frequency. Identifiability analysis was carried out for this nonlinear dynamic equivalent model. In order to apply Laplace transformation-transfer function method, the model was firstly linearized. Particle Swarm Optimization algorithm was utilized for parameter identification of the dynamic equivalent model. For AC power systems, this model is verified on CEPRI 8-machine 36-bus example system. Load model and the style of disturbance are two remarkable factors that relate to the stability of the whole power system, which are fully considered in this paper. The simulation results show that the dynamic equivalent model can reflect the dynamic responses and the transient stability of the original system, no matter which is transient stable or unstable, angle unstable or voltage stable. When we change the load model in the original system, the static characteristic model with both voltage and frequency factors can throughout represents the dynamic behavior of the original system, which confirms its robustness of this dynamic equivalent model. All the simulation work was performed on PSASP.","PeriodicalId":162192,"journal":{"name":"2011 4th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117067083","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":"Study on the model of advanced asset management in smart grid","authors":"Meili Cheng, Yuan Zeng, R. Niu, Yaoheng Chen","doi":"10.1109/DRPT.2011.5993998","DOIUrl":"https://doi.org/10.1109/DRPT.2011.5993998","url":null,"abstract":"Asset management for smart gird is still at a preliminary stage because its mathematical model lags behind the research of smart grid technology. In this paper, we analyze the theory of life cycle asset management within cutting-edge technology in smart grid, and present a complete and mutual management model. Furthermore a brief analysis of eight indicator, which suggested by our complete scientific index system of advanced asset management, are listed. The indicators make up of the basic expression of predictable benefit that can help to optimize the asset operation in smart grid. Finally, a simple comparison between the management model based on life cycle asset management and others models is made. The advantages and shortcomings are raised for the research.","PeriodicalId":162192,"journal":{"name":"2011 4th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT)","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127211072","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":"Evaluation on intelligent energy management system for PHEVs/PEVs using Monte Carlo method","authors":"Wencong Su, M. Chow","doi":"10.1109/DRPT.2011.5994167","DOIUrl":"https://doi.org/10.1109/DRPT.2011.5994167","url":null,"abstract":"The large penetration of Plug-in Hybrid Electric Vehicles (PHEVs) and Plug-in Electric Vehicles (PEVs) brings up many technical problems that needs to be addressed and reassured on. There is also a need for in-depth study on PHEVs in term of Smart Grid environment. In this paper, we introduced the existing testbed of a Large-scale PHEV charging infrastructure developed by FREEDM/ATEC center to achieve the optimal power allocation. Then we applied Monte Carlo method to simulate the myriad real-world scenarios at a municipal parking deck. Case studies were performed to analyze the system performance of intelligent charging algorithms for a large amount of PHEVs using Monte Carlo simulation. Accordingly, the simulation results characterized the optimization performance in terms of the optimal electricity consumption and the PHEV battery State-of-Charge at plug-out.","PeriodicalId":162192,"journal":{"name":"2011 4th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127297206","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":"Evaluating short term benefits of demand response","authors":"L. Jidong, Zhang Zehui, Zhang Li, Han Xueshan","doi":"10.1109/DRPT.2011.5994079","DOIUrl":"https://doi.org/10.1109/DRPT.2011.5994079","url":null,"abstract":"Worldwide wave of research and construction on smart grid is rising. Although the concept and framework of smart grid is various in different countries, a consensus has been reached that the demand should play a more crucial role in the smart grid. To accurately evaluate the effects of demand response on market participants, quantitative analysis must be done. In this paper, short term benefit of demand response is evaluated based on day-ahead electricity market auction. Because of the non-convexity of the unit commitment problem, sharp and unexpected price spikes really appear when demand response is in action and its influence on demand response benefit can't be ignored. So, emphasis of the analysis is put on how changes in unit status due to demand response affect the benefits. Numerical simulation is carried out, and valuable conclusions are deduced.","PeriodicalId":162192,"journal":{"name":"2011 4th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126094153","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}
Jun Xiao, Lingquan Bai, Cheng-shan Wang, Bo Yu, Li Guo
{"title":"A new software for planning and designing of energy storage systems","authors":"Jun Xiao, Lingquan Bai, Cheng-shan Wang, Bo Yu, Li Guo","doi":"10.1109/DRPT.2011.5994137","DOIUrl":"https://doi.org/10.1109/DRPT.2011.5994137","url":null,"abstract":"Optimal configuration of energy storage type and capacity is a difficult problem of planning and designing of Energy Storage System which is constructed for distributed generation. To solve the problem, we develop the software PDESS. The functions of PDESS include data analysis, capacity optimization, structure design and scheme evaluation. Considering the system's economy and technical capabilities, PDESS can evaluate different schemes and compare them based on capacity optimization. This system provides a user-friendly interaction platform for comprehensive evaluation and decision-making on alternatives, which can combine both advantages of machine calculation and human experience. The software is developed under Visual Studio.Net environment, in which VB is adopted to develop visual interfaces and VC is used to implement background algorithms. The versatility and scalability is emphasized during development.","PeriodicalId":162192,"journal":{"name":"2011 4th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123464485","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":"Analysis of characteristics of damping compensated by subsynchronous damping control in HVDC system","authors":"Jibo Sun, Xitian Wang, Yingxin Xv, Huiping Sun","doi":"10.1109/DRPT.2011.5993929","DOIUrl":"https://doi.org/10.1109/DRPT.2011.5993929","url":null,"abstract":"Subsynchronous Damping Control (SSDC) compensation damping plays a significant role in power system stability in HVDC system. This paper builds a linear model to analysis SSDC compensation damping characteristics based on an EPRI proposed double-ended DC test system. Calculation results show that electrical damping is obviously relevant to some factors, such as generator capacity, DC system transmission capacity and DC/AC system connection strength. The ratios of the electrical damping to the Unit Interaction Factor (UIF) and other two specific constants, which are part of UIF, don't change significantly. The two constants can be used to indicate characteristics of the electrical damping and represent the ‘shaft to converter station’ electrical damping transfer characteristic. In this paper, the two constants are called Backward Unit Interaction Factor and Forward Unit Interaction Factor. Therefore, electrical damping characteristics can be represented by UIF and the newly proposed two constants.","PeriodicalId":162192,"journal":{"name":"2011 4th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT)","volume":"195 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116145431","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}