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2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings最新文献

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Reliability evaluation of substation delivery point with time varying load 时变负荷下变电站送电点可靠性评估
2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings Pub Date : 2004-04-05 DOI: 10.1109/DRPT.2004.1338055
P. Suwantawat, S. Premrudeepreechacharn
{"title":"Reliability evaluation of substation delivery point with time varying load","authors":"P. Suwantawat, S. Premrudeepreechacharn","doi":"10.1109/DRPT.2004.1338055","DOIUrl":"https://doi.org/10.1109/DRPT.2004.1338055","url":null,"abstract":"This paper presents a development of substation reliability evaluation by using the sequential Monte Carlo simulation method with time varying load at each delivery point. The technique is illustrated by application to a practical bus arrangement of substation and used to study the sensitivity analysis by varying selected station component parameters. The study results are essential to the condition base maintenance management planning and can play a great role in decision making for improving in main or sub equipment of substation component. It was shown that the Monte Carlo simulation method, which has gained popularity in recent year due to its simplicity and widely use in application to obtain more various indices than analytical method is nearest the real condition of substation, so this approach is a powerful tool for substation reliability evaluation. The results presented in this paper provide valuable information for planning, operation and maintenance of a substation.","PeriodicalId":427228,"journal":{"name":"2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128156112","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: 5
Forecasting several-hours-ahead electricity demand using neural network 利用神经网络预测未来几小时的电力需求
2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings Pub Date : 2004-04-05 DOI: 10.1109/DRPT.2004.1338037
P. Mandal, T. Senjyu, K. Uezato, T. Funabashi
{"title":"Forecasting several-hours-ahead electricity demand using neural network","authors":"P. Mandal, T. Senjyu, K. Uezato, T. Funabashi","doi":"10.1109/DRPT.2004.1338037","DOIUrl":"https://doi.org/10.1109/DRPT.2004.1338037","url":null,"abstract":"This paper presents a practical method for short-term load forecasting considering the temperature as climate factor. The method is based on artificial neural network (ANN) combined similar days approach, which achieved a good performance in the very special region. Performance of the proposed methodology is verified with simulations of actual data pertaining to Okinawa Electric Power Co. in Japan. Forecasted load is obtained from ANN, which is the corrected output of similar days data. Load curve is forecasted by using information of the days being similar to weather condition of the forecast day. An Euclidean norm with weighted factors is used to evaluate the similarity between a forecast day and searched previous days. Special attention was paid to model accurately in different seasons, i.e., summer, winter, spring, and autumn. Moreover, the forecaster is robust, easy to use, and produces accurate results in the case of rapid weather changes.","PeriodicalId":427228,"journal":{"name":"2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134365582","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: 23
A novel voltage quality monitoring system 一种新型电压质量监测系统
2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings Pub Date : 2004-04-05 DOI: 10.1109/DRPT.2004.1338068
W. Tse, W. L. Chan
{"title":"A novel voltage quality monitoring system","authors":"W. Tse, W. L. Chan","doi":"10.1109/DRPT.2004.1338068","DOIUrl":"https://doi.org/10.1109/DRPT.2004.1338068","url":null,"abstract":"With the advent of electricity deregulation, the power quality of electricity supply is getting more and more concern. Customers prefers to have a good electricity supply. In this paper, a novel voltage monitoring system based on a compact microprocessor module is presented. It provides a low-cost and flexible solution for monitoring the power quality of electricity supply. It is especially useful in applying final circuits for both investigation and monitoring purposes. The hardware consists of the module and a few extra electronic components. This shortens the development time and lowers the manufacturing cost. Also, the power quality data can be presented via a web page. Any user in the Internet can access the data from the new monitoring system. Moreover, the size of the system is very small presenting no difficulties for installation. All these features make it very competitive to be used as a supply voltage quality monitor.","PeriodicalId":427228,"journal":{"name":"2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings","volume":"138 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123250248","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: 9
Multi-level fuzzy comprehensive evaluation of power quality 电能质量多层次模糊综合评价
2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings Pub Date : 2004-04-05 DOI: 10.1109/DRPT.2004.1338509
Y. Xiaodong, Z. Jianfeng, Tang Guoqing, Han Zhengzhong
{"title":"Multi-level fuzzy comprehensive evaluation of power quality","authors":"Y. Xiaodong, Z. Jianfeng, Tang Guoqing, Han Zhengzhong","doi":"10.1109/DRPT.2004.1338509","DOIUrl":"https://doi.org/10.1109/DRPT.2004.1338509","url":null,"abstract":"Power quality (PQ) has assumed great importance in the past years in electrical system operation. Evaluation of PQ has become more and more crucial, especially when other PQ technologies have achieved great improvement. A multi-level fuzzy comprehensive evaluation algorithm is proposed to evaluate PQ. The PQ standards of China are referenced and key factors that influence PQ are extracted. These factors are divided into two levels to assess PQ. By constructing membership functions for all the factors separately according to their characteristics and by determining the weights of each factor using improved analytic hierarchy process (AHP), a model which can classify PQ into five grades is designed. At the end of the paper, the effectiveness of this approach is proved reasonable by computing some illustrative examples.","PeriodicalId":427228,"journal":{"name":"2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123265465","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: 27
Realization of high speed digital carrier communication module using COFDM 利用COFDM实现高速数字载波通信模块
2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings Pub Date : 2004-04-05 DOI: 10.1109/DRPT.2004.1338051
Yang Yu, H. Zhijian, Zhang Chengxue, Z. Qiang, Zhou Haibin
{"title":"Realization of high speed digital carrier communication module using COFDM","authors":"Yang Yu, H. Zhijian, Zhang Chengxue, Z. Qiang, Zhou Haibin","doi":"10.1109/DRPT.2004.1338051","DOIUrl":"https://doi.org/10.1109/DRPT.2004.1338051","url":null,"abstract":"In this paper, realization of high speed carrier communication module using new coded orthogonal frequency division multiplexing (COFDM) is discussed. OFDM theory and its coding technology are simply introduced .The advantage of using COFDM modulating technology in power carrier wave communication is analyzed, and data transfer flow of the corresponding COFDM wave-carrier system is presented. The module design based on DSP is put forward, channel coding simulation and hardware composition and realization are also presented in this paper.","PeriodicalId":427228,"journal":{"name":"2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings","volume":"14 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121002615","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
Calculation of available transfer capability with transient stability constraints 具有暂态稳定约束的可用传输能力计算
2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings Pub Date : 2004-04-05 DOI: 10.1109/DRPT.2004.1338480
Yan Xia, K. Chan, Mingbo Liu, Jie Wu
{"title":"Calculation of available transfer capability with transient stability constraints","authors":"Yan Xia, K. Chan, Mingbo Liu, Jie Wu","doi":"10.1109/DRPT.2004.1338480","DOIUrl":"https://doi.org/10.1109/DRPT.2004.1338480","url":null,"abstract":"In this paper, the available transfer capability (ATC) problem with the consideration of transient stability constraints is solved by using the direct nonlinear primal-dual interior point method. The integration of instability trajectory is used as a criterion for determining the degree of transient instability. The transient stability constraints are first converted into equivalents, and then incorporated into the optimal power flow equation set. The difficulties in computing the resultant Jacobian and Hessian matrices have been overcome. The proposed algorithm was fully validated on the WSCC 9-bus test system.","PeriodicalId":427228,"journal":{"name":"2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121230822","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
Design and implementation of RTU based on the embedded operation system /spl mu/C/OS-II 基于嵌入式操作系统/spl mu/C/OS-II的RTU的设计与实现
2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings Pub Date : 2004-04-05 DOI: 10.1109/DRPT.2004.1338057
Yanbin Qu, Jianyong Su, Liguo Feng
{"title":"Design and implementation of RTU based on the embedded operation system /spl mu/C/OS-II","authors":"Yanbin Qu, Jianyong Su, Liguo Feng","doi":"10.1109/DRPT.2004.1338057","DOIUrl":"https://doi.org/10.1109/DRPT.2004.1338057","url":null,"abstract":"This paper describes the design and implementation of RTU based on the embedded operation system /spl mu/C/OS-II and DSP. In hardware design, the DSP and CPLD technology is adopted to improve systemic integration degree and reliability. In software design, the operating system /spl mu/C/OS-II is adopted as the software development platform that can supply better portability and expansibility, as a result real-time response and reliability are enhanced further. The methods that how to port the /spl mu/C/OS-II to DSP and how to implement application programs are discussed in this paper.","PeriodicalId":427228,"journal":{"name":"2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings","volume":"213 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122517651","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
Assessing harmonic impedance by synchronously layered distortion waves based on wavelet 基于小波的同步分层畸变波谐波阻抗评估
2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings Pub Date : 2004-04-05 DOI: 10.1109/DRPT.2004.1338064
X.Y. Xiao, H.G. Yang
{"title":"Assessing harmonic impedance by synchronously layered distortion waves based on wavelet","authors":"X.Y. Xiao, H.G. Yang","doi":"10.1109/DRPT.2004.1338064","DOIUrl":"https://doi.org/10.1109/DRPT.2004.1338064","url":null,"abstract":"In this paper, a method assessing harmonic impedance by synchronously classifying distortion waves is proposed, which is based on the distortion quantity method, a simple and effective means. However the method is based on the Fourier transform, which can just precisely analyze the signals whose cycle is integer times as broad as that of fundamental wave. With sampling windows widening, the variations of distorted signals in a fundamental period are weakened. Moreover, the higher harmonic order is, the lower distinguish ability, and, as a result, the assessment accuracy becomes bad. Considered its prominent localization both in time-domain and in frequency-domain, wavelet is used to the field of assessing harmonic impedance for the first time.","PeriodicalId":427228,"journal":{"name":"2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124786338","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
Basic analysis of the pricing processes in modeled electricity markets with multi-agent simulation 基于多智能体仿真的电力市场定价过程基本分析
2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings Pub Date : 2004-04-05 DOI: 10.1109/DRPT.2004.1338503
Y. Fujii, T. Okamura, K. Inagaki, K. Yamaji
{"title":"Basic analysis of the pricing processes in modeled electricity markets with multi-agent simulation","authors":"Y. Fujii, T. Okamura, K. Inagaki, K. Yamaji","doi":"10.1109/DRPT.2004.1338503","DOIUrl":"https://doi.org/10.1109/DRPT.2004.1338503","url":null,"abstract":"Many electric utilities world-wide have been forced to change their ways of doing business, from vertically integrated systems to open market ones. In Japan, we are facing urgent issues about how to design the structures of power market. In order to cope with the issue, many studies have been made with market models. However, there are many kinds of modeling methods, and no particular method has been established so far. Each has drawbacks and advantages about validity and versatility. This paper presents the method to use a multi-agent model, which learns a bidding strategy autonomously through trial-and-error search action, as useful tools of numerical analysis of the price formation process of an electric power market. The model enables us to analyze more general electricity markets, which have several different types of power plants with unit commitment costs, seasonal and hourly demand fluctuation, real-time regulation market and operating reserve market. This model figures out the issues that may be appeared when we will design markets and the way of designing operating reserve market.","PeriodicalId":427228,"journal":{"name":"2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128757170","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: 15
Pricing for transient stability 暂态稳定性定价
2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings Pub Date : 2004-04-05 DOI: 10.1109/DRPT.2004.1338517
Yue Yuan, J. Kubokawa, H. Sasaki
{"title":"Pricing for transient stability","authors":"Yue Yuan, J. Kubokawa, H. Sasaki","doi":"10.1109/DRPT.2004.1338517","DOIUrl":"https://doi.org/10.1109/DRPT.2004.1338517","url":null,"abstract":"Although electric power market has been studied for more than two decades now, transient stability, which is often a critical determinant of active power allocation is many systems, has rarely been discussed in the pricing literature. This paper presents the development of a stability constrained optimal power flow (SCOPF) based transient stability pricing method. For the first time, this paper introduces an index, which is the limit of stability constraints in SCOPF problems, for transient stability pricing. Experiments conducted for two IEEJ model systems, a 10-generator system and a 30-generator system, reveal some interesting impacts of the transient stability constraint on real power prices.","PeriodicalId":427228,"journal":{"name":"2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121586928","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
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