2008 Third International Conference on Electric Utility Deregulation and Restructuring and Power Technologies最新文献_第6页

Wide area power grid health state diagnosis and early warning system based on fault power flow fingerprint identification and MAS technology 基于故障潮流指纹识别和MAS技术的广域电网健康状态诊断预警系统

2008 Third International Conference on Electric Utility Deregulation and Restructuring and Power Technologies Pub Date : 2008-04-06 DOI: 10.1109/DRPT.2008.4523693

Pengjiang Ge, Qian Guo, Haina Zhou, Xinran Li, Wen Xu, G. Tang, Qingshan Xu

{"title":"Wide area power grid health state diagnosis and early warning system based on fault power flow fingerprint identification and MAS technology","authors":"Pengjiang Ge, Qian Guo, Haina Zhou, Xinran Li, Wen Xu, G. Tang, Qingshan Xu","doi":"10.1109/DRPT.2008.4523693","DOIUrl":"https://doi.org/10.1109/DRPT.2008.4523693","url":null,"abstract":"The stability and security of the power grid is deteriorated due to the recent large-scale power grid interconnection and the power marketing. The stability character of the power grid becomes complex more and more. The new theory and technique need to be applied to diagnose the real-time state of the power grid in order to ensure the safe and economical operation of the power grid. The power flow fingerprint character during the normal and fault state is analyzed and the power grid health diagnosis repository with the Self-learning ability is constituted. The diagnosis method adaptable for the wide area power grid health state diagnosis is put forward in the paper. The power flow character is extracted using AFIS technology, and the intelligent matching arithmetic is used to diagnose the power grid health state, so the power grid health state factor and the uncertain probability distributing between the failure and symptom is present. The early warning and decision support architecture is constructed based on the Power Flow Fingerprint Identification and MAS Technology. The health diagnosis results can be integrated with the other intelligent diagnosis results and can alarm the dispatcher using the technology of visualization. The application of power flow fingerprint identification technique to diagnose the health state of the power grid can eliminate the potential fault in the power grid and prevent the happening of the paroxysmal accident.","PeriodicalId":240420,"journal":{"name":"2008 Third International Conference on Electric Utility Deregulation and Restructuring and Power Technologies","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115784229","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: 3

Application of genetic on analysis of market equilibrium strategy with game theory 遗传在博弈论市场均衡策略分析中的应用

2008 Third International Conference on Electric Utility Deregulation and Restructuring and Power Technologies Pub Date : 2008-04-06 DOI: 10.1109/DRPT.2008.4523410

Zhenglin Yang, G. Tang

{"title":"Application of genetic on analysis of market equilibrium strategy with game theory","authors":"Zhenglin Yang, G. Tang","doi":"10.1109/DRPT.2008.4523410","DOIUrl":"https://doi.org/10.1109/DRPT.2008.4523410","url":null,"abstract":"In oligopoly competition electricity market, bidding strategy and utility of market participants interact each other, which means any change of bidding made by one market participant will influence the strategy and utility of all other market participants. Because of the characteristics of gaming between market participant and incomplete information of opponents, an important tool of game theory is needed to analyze behavior of market participants and to forecaste tendency of electricity market. The actual situations of electricity market in operation, such as multi-constrained bidding curve of market participants, multi- types of bidding strategy of traders, and complex market rules, make it insurmountable for game theory to analyze the equilibrium strategy of electricity market. This paper presented an combination analysis model of game theory and genetic algorithm to reflect the actual situation of electricity. Firstly, the general analysis method of game theory is introduced . Then, the constraints and types of bidding curve are analyzed, bidding curve model is constructed, and the transaction utility calculation model of all participants is defined. Eventually, the analysis model of market equilibrium is constructed with game theory, and is implemented with genetic algorithm. In the market equilibrium analysis, each market participants might own multiple bidding units which has independent constraints and bidding curves. Calculation results indicate that the analysis method presented in this paper was consistent with actual operation of electricity market, fully reflected the market rule of electricity in operation, and could interpret the bidding behavior of market participants. Analysis results of bidding strategy equilibrium combination could be used directly in bidding decision-making of power provider and market clear price forecasting, and might play a great role in power provider bidding decision-making technical support system.","PeriodicalId":240420,"journal":{"name":"2008 Third International Conference on Electric Utility Deregulation and Restructuring and Power Technologies","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115814399","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

Model-based long-term electricity generation system planning under uncertainty 不确定条件下基于模型的长期发电系统规划

2008 Third International Conference on Electric Utility Deregulation and Restructuring and Power Technologies Pub Date : 2008-04-06 DOI: 10.1109/DRPT.2008.4523607

Ninghong Sun, I. Ellersdorfer, D. J. Swider

引用次数: 26

Comparing transformer derating computed using the harmonic loss factor FHL and K-factor 比较用谐波损耗因子FHL和k因子计算的变压器降额

2008 Third International Conference on Electric Utility Deregulation and Restructuring and Power Technologies Pub Date : 2008-04-06 DOI: 10.1109/DRPT.2008.4523666

Tao Shun, Xiao Xiangning

引用次数: 19

The optimal generation capacity and investment incentives of peak units 高峰机组最优发电容量及投资激励

2008 Third International Conference on Electric Utility Deregulation and Restructuring and Power Technologies Pub Date : 2008-04-06 DOI: 10.1109/DRPT.2008.4523606

Guo-yao Liu, X. Hong, Xiao Lin, Zeng Ming

{"title":"The optimal generation capacity and investment incentives of peak units","authors":"Guo-yao Liu, X. Hong, Xiao Lin, Zeng Ming","doi":"10.1109/DRPT.2008.4523606","DOIUrl":"https://doi.org/10.1109/DRPT.2008.4523606","url":null,"abstract":"Taking the generator availability, operation cost and maintenance cost into consideration, a model of the optimal generation capacity for peak units is developed based on cost-benefit analysis. And the optimal capacity is calculated, from the perspective of minimal social cost and maximal investment return respectively, revealing the divergence in investment goal of society and investors. Furthermore, in reality the installed peak-load generation capacity cannot exactly meet the ideally optimal level, and the additional social cost, that is the difference of the social cost from the value at the optimal peak capacity, is asymmetric in under- and over-investment situations. Therefore over-investment, which is favored by the society because it saves much expensive lost load cost, is in contradiction to underinvestment, which is preferred by investors for lower risks. Such incompatibility in investment incentives between the society and investors is mathematically analyzed. Finally, according to the current situation of deregulation and restructuring in China's electricity sector, a proposal of raising the price cap properly to encourage generation investment is given as one of the solutions to such incompatibility. In addition, the relationship between the uplifted price cap and the stimulated generation investment is analyzed, revealing the diminishing marginal effect of price cap uplift on over-investment incentives.","PeriodicalId":240420,"journal":{"name":"2008 Third International Conference on Electric Utility Deregulation and Restructuring and Power Technologies","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134265231","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

Research of nonlinear control strategy for VSC-HVDC system based on Lyapunov stability theory 基于李雅普诺夫稳定性理论的VSC-HVDC系统非线性控制策略研究

2008 Third International Conference on Electric Utility Deregulation and Restructuring and Power Technologies Pub Date : 2008-04-06 DOI: 10.1109/DRPT.2008.4523773

Guangkai Li, Guopeng Ma, Chengyong Zhao, Gengyin Li

引用次数: 14

Transient analysis of synchronous generator with stator winding faults based on starting process 基于起动过程的同步发电机定子绕组故障暂态分析

2008 Third International Conference on Electric Utility Deregulation and Restructuring and Power Technologies Pub Date : 2008-04-06 DOI: 10.1109/DRPT.2008.4523722

Hongzhong Ma, Huamin Li, Shurong Wei, P. Ju, Limin Zhang

{"title":"Transient analysis of synchronous generator with stator winding faults based on starting process","authors":"Hongzhong Ma, Huamin Li, Shurong Wei, P. Ju, Limin Zhang","doi":"10.1109/DRPT.2008.4523722","DOIUrl":"https://doi.org/10.1109/DRPT.2008.4523722","url":null,"abstract":"Multi-loop theory is the most common and effective method used for analyzing stator winding internal faults of synchronous generators. Based on the current analysis methods, this paper modifies the existing models and introduces the motion equation of rotor into the multi-loop analysis model to describe the associated relations between main parameters (e.g. current, voltage, torque, speed of rotation) of generator. Since the starting process of motor contains abundant information, this paper analyzes the influence of internal faults to relevant parameters, during the starting process from zero to rated speed. Through analysis some conclusions can be obtained as follow: when stator winding internal faults occur, since the influence of space harmonic is stronger, electromagnetic torque is on oscillatory regime. All waves are distorted when turn-to-turn faults occur. The starting current is bigger than normal, and the current will fluctuate after stabilization. The changing trends of short circular current and neutral-point current are the same. The currents are both small when starting, then gradually decay and go stabilization after an obvious increasing. The amplitudes of currents are far bigger than every branch current of stator. After faults, the electromagnetic torque of motor changes a lot and there is still an oscillation with certain amplitudes after stabilization. More short turns would cause bigger amplitudes of oscillation.","PeriodicalId":240420,"journal":{"name":"2008 Third International Conference on Electric Utility Deregulation and Restructuring and Power Technologies","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131640581","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

Design and implementation of inverter in dynamic voltage restorer based on Selective Harmonic Elimination PWM 基于选择性谐波消除PWM的动态电压恢复器逆变器设计与实现

2008 Third International Conference on Electric Utility Deregulation and Restructuring and Power Technologies Pub Date : 2008-04-06 DOI: 10.1109/DRPT.2008.4523783

Yanlei Zhao

引用次数: 11

Transition from price capping to Profit Capping based on profit space in electricity market 基于电力市场利润空间的价格上限向利润上限的转变

2008 Third International Conference on Electric Utility Deregulation and Restructuring and Power Technologies Pub Date : 2008-04-06 DOI: 10.1109/DRPT.2008.4523441

XueHao Wei, X. Xiong, Hao Zhou, Z. Hou

引用次数: 0

Research on optimization of recloser placement of DG-enhanced distribution networks dg增强型配电网重合闸布局优化研究

2008 Third International Conference on Electric Utility Deregulation and Restructuring and Power Technologies Pub Date : 2008-04-06 DOI: 10.1109/DRPT.2008.4523848

Zhang Li, Xu Yuqin, Zengping Wang

引用次数: 16