{"title":"Genetic algorithm based design of power system stabilizers","authors":"Hu Guo-qiang, Xuan Dong-jie, He Ren-mu","doi":"10.1109/DRPT.2004.1338487","DOIUrl":"https://doi.org/10.1109/DRPT.2004.1338487","url":null,"abstract":"This paper presents a GA based optimization scheme for simultaneous coordination of multiple machines power system damping controllers. The proposed algorithm is applied to tuning of single and multiple power system stabilizers. Controller design is tested on the small and mid-sized power systems to prove its effectiveness. PSSs are designed using MATLAB control system toolbox and optimized using GAOT toolbox. All models and simulations are carried out using MATLAB and SSAT developed by Powertech Labs Inc, Canada.","PeriodicalId":427228,"journal":{"name":"2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings","volume":"35 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":"124132707","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":"Insights from world experience in regulating electricity","authors":"L. Lai","doi":"10.1109/DRPT.2004.1338457","DOIUrl":"https://doi.org/10.1109/DRPT.2004.1338457","url":null,"abstract":"In the last few years, there are many good and bad things happened in electricity deregulation. This keynote speech identifies lessons for countries that are considering or implementing power sector reform. This speech also assesses whether power crisis could have been avoided with better market design and management. The California crisis provides useful examples of what can happen if goals and constraints are not clear and if the regulatory agency does not have the authority to fix problems. California's power crisis is a failure of market design, rather than a failure of deregulation. The key characteristics of a good regulatory commission will also be discussed.","PeriodicalId":427228,"journal":{"name":"2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings","volume":"81 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":"123699113","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":"Marginal loss calculation in competitive electrical energy markets","authors":"F. Li, Jiuping Pan, Henry Chao","doi":"10.1109/DRPT.2004.1338494","DOIUrl":"https://doi.org/10.1109/DRPT.2004.1338494","url":null,"abstract":"The core of FERC proposed standard market design (SMD) in the US is locational marginal pricing (LMP) for electrical energy by which the energy prices are to be determined based on marginal costs in order to promote economic efficiency. One of the main challenging issues in implementing LMP methodology is the pricing of marginal losses, which requires accurate analysis of transmission losses and incorporating the effects of marginal losses into the optimal generation scheduling process. This paper presents two optimal generation scheduling algorithms where the effects of marginal losses are reflected through the use of penalty factors and delivery factors. Both algorithms are consistent with the overall SMD energy pricing approach, allowing for the calculation of three different LMP components: marginal energy cost, marginal congestion cost, and marginal loss cost. The algorithms are benchmarked with the NYISO method on a simple two-bus system, and then examined using a more realistic five-bus system. Some important issues on the implementation of marginal loss pricing in competitive energy markets are discussed.","PeriodicalId":427228,"journal":{"name":"2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings","volume":"PP 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":"126443710","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":"Research on procurement strategy of reactive power as auxiliary service in power markets","authors":"Li Geng-yin, Z. Ming, Y. Juan, S. Liying","doi":"10.1109/DRPT.2004.1338520","DOIUrl":"https://doi.org/10.1109/DRPT.2004.1338520","url":null,"abstract":"For reactive power as a kind of auxiliary service in power markets, based on analysis to generators' operation limits and production cost of reactive power, this paper proposes a segmented bidding model of generators' reactive power generation. The proposed model ensures generation companies to compensate \"loss of opportunity cost\" by the generator generating amount of reactive power instead of active power, also suitable for independent system operator (ISO) procuring enough reactive power to meet the demand of reactive power and voltage support by power systems. From the viewpoint of ISO, this paper provides a dispatching reactive power model, based on optimal power flow, which are minimized both the cost of procuring reactive power as auxiliary service and the losses of active power. The proposed model is solved by genetic algorithm to obtain the best procurement strategy of reactive power as auxiliary service. Lastly, some numerical tests are given to verify the proposed model and algorithm correction and effectiveness.","PeriodicalId":427228,"journal":{"name":"2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings","volume":"1989 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":"125497986","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 emission compliance program on competitive power market","authors":"Y. Liao, Xiaoming Feng, Jiuping Pan","doi":"10.1109/DRPT.2004.1338464","DOIUrl":"https://doi.org/10.1109/DRPT.2004.1338464","url":null,"abstract":"This paper discusses the impact analysis of enforcing emission compliance program on competitive power market operation using an electricity market simulation program, GridView. Certain environmental acts and programs on electricity generating units have imposed various emission constraints. To comply with the required limits, the commitment and dispatch of individual units may need to be adjusted based on the certain parameters, possibly by favoring utilization of low emission rate units. As a result, the effects on system operation conditions and the energy prices could be very drastic and difficult to predict or quantify without the use of a market simulation tool that can make emission compliance an integral part of the market simulation process. This paper discusses the implementation of an iterative emission constraints modeling in a power market simulation program, which leads to an economic equilibrium between various opposing factors. Case studies using the market simulator illustrate the presented approach, and demonstrated the impact of enforcing emission compliance on generation cost, revenue and prices.","PeriodicalId":427228,"journal":{"name":"2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings","volume":"259 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":"133990645","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 novel model of wind energy conversion system","authors":"P. Dong, J. Wu, J.M. Yang, Y. Chen","doi":"10.1109/DRPT.2004.1338093","DOIUrl":"https://doi.org/10.1109/DRPT.2004.1338093","url":null,"abstract":"The modeling of the asynchronous generator connected to the grid is presented in this article. The uniform reference coordinate is adopted in the whole wind energy conversion system and the simplified model based on the multitime scale theory is given after establishing the detailed model. In the end, the simulation results assure the validity of the simplified model.","PeriodicalId":427228,"journal":{"name":"2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings","volume":"24 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":"132920950","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":"Radial basis neural network state estimation of electric power networks","authors":"D. Singh, J. P. Pandey, D. Chauhan","doi":"10.1109/DRPT.2004.1338474","DOIUrl":"https://doi.org/10.1109/DRPT.2004.1338474","url":null,"abstract":"An original application of radial basis function (RBF) neural network for power system state estimation is proposed in this paper. The property of massive parallelism of neural networks is employed for this. The application of RBF neural network for state estimation is investigated by testing its applicability on a IEEE 14 bus system. The proposed estimator is compared with conventional weighted least squares (WLS) state estimator on basis of time, accuracy and robustness. It is observed that the time taken by the proposed estimator is quite low. The proposed estimator is more accurate and robust in case of gross errors and topological errors present in the measurement data.","PeriodicalId":427228,"journal":{"name":"2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings","volume":"294 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":"132898127","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":"Small signal stability analysis and control in market environment","authors":"Xu Dongjie, Wang Peng, H. Renmu, X. Tao","doi":"10.1109/DRPT.2004.1338515","DOIUrl":"https://doi.org/10.1109/DRPT.2004.1338515","url":null,"abstract":"In the deregulated power industry, the increasing number of power marketers and independent power generators increases the variability of power flow patterns in the transmission system, thereby reducing the ability of transmission planners and operators to predict the critical operating conditions and limits. Consequently, the small signal stability problem becomes more complex. And the existing standard methods and tools for small-signal stability are not able to perform security analysis in the claimed response time required for online use. Under this background, we propose a novel approach for power system small signal stability analysis and control which combines the state-of-the-art small signal analysis tools, data mining, and the synchronized phasor measurement techniques.","PeriodicalId":427228,"journal":{"name":"2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings","volume":"18 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":"131346871","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}
Jiguang Wu, Jun-yong Liu, Dengwei Duan, H. Niu, Lian-fang Xie, Wen-yi Li
{"title":"Research on operation reserve capacity in power market environment","authors":"Jiguang Wu, Jun-yong Liu, Dengwei Duan, H. Niu, Lian-fang Xie, Wen-yi Li","doi":"10.1109/DRPT.2004.1338071","DOIUrl":"https://doi.org/10.1109/DRPT.2004.1338071","url":null,"abstract":"In power market environment, the first goal of suppliers and consumers is to maximize their profits, respectively. It is a key problem to determine a reasonable reserve capacity that directly influences the price of electricity energy. However, the price is fluctuating with the change of load, so it is necessary for a rational consumer to determine the price of interruption. In this paper, elastic interruptible load is considered as a part of operation reserves. Methods of operational research are used to determine operation reserve capacity. Based on system operation reserve costs, compensation costs of load shedding, and history records of reserve capacity probability, optimal storage theory is used to establish a mathematic model which is solved by decision matrix. The proposed approach is applied to a six-bus test system to testify it feasible and economic. The results show that the approach provides a winnable frame for both suppliers and demanders.","PeriodicalId":427228,"journal":{"name":"2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings","volume":"33 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":"114356001","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":"Simulation study on a new solid state fault current limiter for high-voltage power systems","authors":"Gang Chen, Daozhuo Jiang, Zheng-yu Lu, Zhaolin Wu","doi":"10.1109/DRPT.2004.1338485","DOIUrl":"https://doi.org/10.1109/DRPT.2004.1338485","url":null,"abstract":"In this paper, a new type solid state fault current limiter (SSFCL) with bypass reactor is presented for high-voltage electrical network. The operating principle and control strategies of new SSFCL are discussed in detail. The SSFCL integration with the electrical network has been simulated using simulation package PSIM. It is shown that in normal operation condition the limiter has no obvious effect on loads. When fault happens, the bypass reactor will insert the fault line automatically without delay to limit the short circuit current. By the appropriate control strategies, the solid state bridge will retreat from the fault line as soon as possible. There is no oscillation as well as overvoltage excited by the limiter when the fault current is limited. The control mode is simple and facile. The proposed system is numerically tested, it proved that the theoretical prediction and the current limiting performance is satisfactory for practical use.","PeriodicalId":427228,"journal":{"name":"2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings","volume":"49 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":"114427688","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}