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2009 International Conference on Power Systems最新文献

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Study of autonomous hybrid power system using SVC and STATCOM 基于SVC和STATCOM的自主混合动力系统研究
2009 International Conference on Power Systems Pub Date : 2009-12-01 DOI: 10.1109/ICPWS.2009.5442770
P. Sharma, N. Saxena, T. S. Bhatti
{"title":"Study of autonomous hybrid power system using SVC and STATCOM","authors":"P. Sharma, N. Saxena, T. S. Bhatti","doi":"10.1109/ICPWS.2009.5442770","DOIUrl":"https://doi.org/10.1109/ICPWS.2009.5442770","url":null,"abstract":"The use of autonomous hybrid power system is being popular due to the continuous increasing gap between demand and supply of conventional energy sources and intermittent nature of renewable energy sources. Normally, the renewable energy source such as wind using induction generator generate electricity but induction generators require reactive power for its operation and this demand is continuously changing by the variation of load and wind power. Though synchronous generator used in hybrid system for generating power through diesel system is supplying reactive power to the system but another source having fast response for reactive power supply is required to fulfill this demand. In this paper, the SVC and STATCOM are used and compared as a reactive power compensator.","PeriodicalId":337759,"journal":{"name":"2009 International Conference on Power Systems","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127895984","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: 22
Assessment of economic penetration levels of photovoltaic array area in a hybrid energy system 混合能源系统光伏阵列区域经济渗透水平评估
2009 International Conference on Power Systems Pub Date : 2009-12-01 DOI: 10.1109/ICPWS.2009.5442660
Ajai Gupta, R. Saini, M. Sharma
{"title":"Assessment of economic penetration levels of photovoltaic array area in a hybrid energy system","authors":"Ajai Gupta, R. Saini, M. Sharma","doi":"10.1109/ICPWS.2009.5442660","DOIUrl":"https://doi.org/10.1109/ICPWS.2009.5442660","url":null,"abstract":"This paper introduces an algorithm enabling the assessment of the economic penetration levels of photovoltaic (PV) array area into hybrid energy system. The economic penetration level is that which achieves the maximum permissible reduction in the kWh cost of hybrid energy system. The algorithm is based on evaluation of optimized unit cost with other significant parameters. According to the daily electrical energy demand, the required generating system is designed with different penetration levels of PV. For each combination, the optimized unit cost is evaluated. The combinations are compared with each other and the optimal one is determined.","PeriodicalId":337759,"journal":{"name":"2009 International Conference on Power Systems","volume":"238 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120950571","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
Performance analysis of compensation current extraction techniques for 3Ф, 3-wire shunt active power filter under unbalanced supply 不平衡供电条件下3Ф三线并联有源滤波器补偿电流提取技术的性能分析
2009 International Conference on Power Systems Pub Date : 2009-12-01 DOI: 10.1109/ICPWS.2009.5442679
J. Gonda, V. Anantha Adithya, S. Sumam David
{"title":"Performance analysis of compensation current extraction techniques for 3Ф, 3-wire shunt active power filter under unbalanced supply","authors":"J. Gonda, V. Anantha Adithya, S. Sumam David","doi":"10.1109/ICPWS.2009.5442679","DOIUrl":"https://doi.org/10.1109/ICPWS.2009.5442679","url":null,"abstract":"Active power filters are effective in mitigating line current harmonics and compensating for the reactive power in the line. Many papers comparing the performance of active power filter extraction algorithms are found in the literature, but there is no explicit mention about the suitability of any particular extraction algorithm under all conditions. Hence this paper is an attempt to compare the performance of direct methods of compensating current extraction algorithms for three-phase active power filters under different conditions of mains supply using Matlab/Simulink™. Both transient and steady state conditions are considered. The compensating techniques under analysis are: synchronous detection methods, synchronous reference frame method, id-iq method, instantaneous active reactive power theory (p-q theory), modified p-q theory, adaptive noise cancellation, notch filtering and Fourier based sinusoidal subtraction algorithms. Under balanced conditions all the compensating techniques give proper results, but under unbalanced conditions only few of the compensating techniques work satisfactorily. In fact the equal resistance synchronous detection method and Fourier based sinusoidal subtraction algorithms perform better under extreme conditions. With proper implementation, sinusoidal subtraction algorithm performs better under both transient and steady state conditions.","PeriodicalId":337759,"journal":{"name":"2009 International Conference on Power Systems","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116190123","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
Reactive power optimization with different objectives in large power systems including HVDC systems and FACTS devices 大型电力系统(包括高压直流系统和FACTS设备)中不同目标的无功优化
2009 International Conference on Power Systems Pub Date : 2009-12-01 DOI: 10.1109/ICPWS.2009.5442649
D. Thukaram, S. Lakpathi, K. Ravishankar, S. Surendra
{"title":"Reactive power optimization with different objectives in large power systems including HVDC systems and FACTS devices","authors":"D. Thukaram, S. Lakpathi, K. Ravishankar, S. Surendra","doi":"10.1109/ICPWS.2009.5442649","DOIUrl":"https://doi.org/10.1109/ICPWS.2009.5442649","url":null,"abstract":"Present day power systems are growing in size and complexity of operation with inter connections to neighboring systems, introduction of large generating units, EHV 400/765kV AC transmission systems, HVDC systems and more sophisticated control devices such as FACTS. For planning and operational studies, it requires suitable modeling of all components in the power system, as the number of HVDC systems and FACTS devices of different type are incorporated in the system. This paper presents reactive power optimization with three objectives to minimize the sum of the squares of the voltage deviations (ve) of the load buses, minimization of sum of squares of voltage stability L-indices of load buses (ΣL2), and also the system real power loss (Ploss) minimization. The proposed methods have been tested on typical sample system. Results for Indian 96-bus equivalent system including HVDC terminal and UPFC under normal and contingency conditions are presented.","PeriodicalId":337759,"journal":{"name":"2009 International Conference on Power Systems","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125939042","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
Two stage state estimator with phasor measurements 带相量测量的两级状态估计器
2009 International Conference on Power Systems Pub Date : 2009-12-01 DOI: 10.1109/ICPWS.2009.5442707
K. Jamuna, K. Swarup
{"title":"Two stage state estimator with phasor measurements","authors":"K. Jamuna, K. Swarup","doi":"10.1109/ICPWS.2009.5442707","DOIUrl":"https://doi.org/10.1109/ICPWS.2009.5442707","url":null,"abstract":"State estimator is an important tool for online monitoring, analysis and control of power systems. With the increased use of phasor measurement units in a power grid, utilization of synchro phasor measurements in State Estimation (SE) becomes essential. Conventional State Estimation (CSE) has been done from measurements obtained by Supervisory Control And Data Acquisition (SCADA) systems. Linear State Estimation (LSE) is done using phasor measurements alone. The paper presents a hybrid method called Two Stage State Estimation (TSSE), wherein the states of the system are estimated by incorporating both the SCADA measurements and phasor measurements. Simulations are done on IEEE 14 bus, IEEE 30 bus and IEEE 118 bus systems and results are compared.","PeriodicalId":337759,"journal":{"name":"2009 International Conference on Power Systems","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126083710","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: 12
Voltage profile enhancement through optimal placement of FACTS devices using Queen-Bee-Assisted GA 通过使用蜂王辅助遗传算法优化放置FACTS器件来增强电压剖面
2009 International Conference on Power Systems Pub Date : 2009-12-01 DOI: 10.1109/ICPWS.2009.5442669
K. Sundareswaran, P. Bharathram, M. Siddharth, G. Vaishnavi, N. Shrivastava, H. Sarma
{"title":"Voltage profile enhancement through optimal placement of FACTS devices using Queen-Bee-Assisted GA","authors":"K. Sundareswaran, P. Bharathram, M. Siddharth, G. Vaishnavi, N. Shrivastava, H. Sarma","doi":"10.1109/ICPWS.2009.5442669","DOIUrl":"https://doi.org/10.1109/ICPWS.2009.5442669","url":null,"abstract":"The identification of optimal locations for 3 Static VAr Compensators (SVCs) in an IEEE 30 bus system is considered in this paper. The problem is drafted as an optimization task and the solution is achieved through a novel optimization method termed as Queen Bee Assisted GA. The proposed algorithm is a suitable modification of a standard GA incorporating the evolution of a queen bee in a hive. The performance of the new algorithm is illustrated through extensive computed simulations.","PeriodicalId":337759,"journal":{"name":"2009 International Conference on Power Systems","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126938096","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 new static var system auxiliary controller for damping subsynchronous oscillations in series compensated power systems 一种新型的静态无功系统辅助控制器，用于抑制串联补偿电力系统的次同步振荡
2009 International Conference on Power Systems Pub Date : 2009-12-01 DOI: 10.1109/ICPWS.2009.5442668
P. Sharma, Shelika Bansal
{"title":"A new static var system auxiliary controller for damping subsynchronous oscillations in series compensated power systems","authors":"P. Sharma, Shelika Bansal","doi":"10.1109/ICPWS.2009.5442668","DOIUrl":"https://doi.org/10.1109/ICPWS.2009.5442668","url":null,"abstract":"In this paper the application of an Static Var System (SVS) auxiliary controller for damping torsional oscillations in a series compensated power system is presented. A new auxiliary controller, known as the combined derivative of reactive power and derivative of computed internal voltage (CDRPDCIVA) auxiliary controller has been developed and incorporated in the SVS control system located at the middle of a series compensated long transmission line. Studies are conducted on a system having a similar spread of the torsional modes as the first IEEE benchmark model. The proposed SVS auxiliary controller stabilizes all the torsional modes for wide range of series compensation at a high power transfer level.","PeriodicalId":337759,"journal":{"name":"2009 International Conference on Power Systems","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132109175","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
System ATC estimation using Distributed Computing 基于分布式计算的系统ATC估计
2009 International Conference on Power Systems Pub Date : 2009-12-01 DOI: 10.1109/ICPWS.2009.5442699
S. Pandey, S. Tapaswi, L. Srivastava
{"title":"System ATC estimation using Distributed Computing","authors":"S. Pandey, S. Tapaswi, L. Srivastava","doi":"10.1109/ICPWS.2009.5442699","DOIUrl":"https://doi.org/10.1109/ICPWS.2009.5442699","url":null,"abstract":"Accurate and instant information about available transfer capability (ATC) is important in competitive electric power markets for providing non discriminatory open access transmission facility. ATC information conveys how much power can be transmitted through the power network over and above already committed uses. This paper presents, a Levenberg-Marquardt algorithm based neural network (LMANN) approach for fast and accurate estimation of system ATC with Distributed Computing. Effective input variables for neural network have been selected using entropy concept. For accurate estimation of ATC various contingency clusters were formed using Euclidean distance based clustering technique. For each contingency cluster separate LMANNs have been developed. All the proposed LMANNs have been trained and tested under distributed computing environment and a significant speed up in the training is obtained. The proposed approach has been examined on IEEE − 30 bus test system and found significantly efficient.","PeriodicalId":337759,"journal":{"name":"2009 International Conference on Power Systems","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131493139","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
Multiagent based particle swarm optimization approach to economic dispatch with security constraints 基于多智能体的安全约束经济调度粒子群优化方法
2009 International Conference on Power Systems Pub Date : 2009-12-01 DOI: 10.1109/ICPWS.2009.5442741
S. Sivasubramani, K. Shanti Swarup
{"title":"Multiagent based particle swarm optimization approach to economic dispatch with security constraints","authors":"S. Sivasubramani, K. Shanti Swarup","doi":"10.1109/ICPWS.2009.5442741","DOIUrl":"https://doi.org/10.1109/ICPWS.2009.5442741","url":null,"abstract":"This paper proposes a new evolutionary approach named as multi agent particle swarm optimization (MAPSO) algorithm for solving economic dispatch with security constraints (line flow and bus voltage). This method integrates multiagent systems (MAS) and particle swarm optimization (PSO) to form a new algorithm, multiagent particle swarm optimization algorithm. In MAPSO, an agent represents a particle to PSO and a candidate solution to the optimization problem. All agents live in a lattice like environment, with each agent fixed on a lattice point. In order to obtain optimal solution, each agent competes and cooperates with its neighbor and it can also learn by using its knowledge. Making use of these agent-agent interactions, MAPSO realizes the purpose of minimizing the objective function value. MAPSO is applied to two representative systems i.e. IEEE 14 bus and IEEE 30 bus systems. Simulation results show that proposed approach gives better solution than earlier reported approaches.","PeriodicalId":337759,"journal":{"name":"2009 International Conference on Power Systems","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131801013","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
A profit based Unit Commitment problem in deregulated power markets 解除管制电力市场中基于利润的单位承诺问题
2009 International Conference on Power Systems Pub Date : 2009-12-01 DOI: 10.1109/ICPWS.2009.5442772
K. Lakshmi, S. Vasantharathna
{"title":"A profit based Unit Commitment problem in deregulated power markets","authors":"K. Lakshmi, S. Vasantharathna","doi":"10.1109/ICPWS.2009.5442772","DOIUrl":"https://doi.org/10.1109/ICPWS.2009.5442772","url":null,"abstract":"For the vertically integrated monopolistic environment in the past, economic dispatch and Unit Commitment (UC) were defined as finding and scheduling generating units in order to minimize the total production cost of utility and constraints such as power demand and spinning reserve are met. These problems under deregulated environment, on the other hand, are more complex and more competitive than traditional problems. Generation Companies (GENCO's) solves economic dispatch and unit commitment problem not for minimizing total production cost as before but for maximizing their own profit. Hence, power prices become an important factor in decision making process. This paper presents a hybrid model between Lagrange relaxation and Genetic algorithm to schedule generators economically based on forecasted information such as power prices and demand, with an objective to maximize profit of Generation Company. Simulations are carried out to evaluate the performance of the proposed technique. Test results for 10 generating units 24 hours system are compared with those obtained from traditional unit commitment.","PeriodicalId":337759,"journal":{"name":"2009 International Conference on Power Systems","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133975208","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: 14
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