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A Case Study on Load Frequency Control with Automatic Generation Control on a Two Area Network using MiPower 基于MiPower的两网负载频率自动发电控制实例研究
2018 20th National Power Systems Conference (NPSC) Pub Date : 2018-12-01 DOI: 10.1109/NPSC.2018.8771714
Ishan Gupta, M. Hemanth
{"title":"A Case Study on Load Frequency Control with Automatic Generation Control on a Two Area Network using MiPower","authors":"Ishan Gupta, M. Hemanth","doi":"10.1109/NPSC.2018.8771714","DOIUrl":"https://doi.org/10.1109/NPSC.2018.8771714","url":null,"abstract":"This paper basically explains about the load frequency control in a multi area network. A two area network has been considered where frequency control is done using the Automatic Generation Control (AGC) system simulated in MiPower software. There are two case studies which have been explained, where the frequency behaviour has been shown under different loading conditions. In one case, the load increment was under the maximum generation limit and in the other case, it exceeded the maximum generation limit. Along with the case studies, the working of the AGC control system has also been explained in detail with its response for different loading conditions. The network has been simulated in MiPower from which the respective load flow studies results have been obtained. The AGC diagram has also been simulated in the Free Programmable Blocks module of MiPower, where the control responses have been observed and shown.","PeriodicalId":185930,"journal":{"name":"2018 20th National Power Systems Conference (NPSC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130321719","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
PMU based Distance Protection Methodology to Avert Malfunction due to FACTS controllers 基于PMU的距离保护方法避免由于FACTS控制器引起的故障
2018 20th National Power Systems Conference (NPSC) Pub Date : 2018-12-01 DOI: 10.1109/NPSC.2018.8771751
Mallikarjuna Balimidi, Anil Saggurthi, M. J. Bharata Reddy, D. Mohanta
{"title":"PMU based Distance Protection Methodology to Avert Malfunction due to FACTS controllers","authors":"Mallikarjuna Balimidi, Anil Saggurthi, M. J. Bharata Reddy, D. Mohanta","doi":"10.1109/NPSC.2018.8771751","DOIUrl":"https://doi.org/10.1109/NPSC.2018.8771751","url":null,"abstract":"In general, reactive power compensation equipment are used in transmission lines to enhance the power transfer capacity and voltage profile but they affect the performance of distance relays significantly. This paper proposes phasor measurement units (PMUs) based protection technique to avert malfunction of distance relays due to flexible alternating current transmission system (FACTS) controllers, especially static VAr compensator (SVC). The proposed methodology has employed synchronized voltage and current phasor data received at phasor data concentrator (PDC) in system protection center (SPC) to determine the zone of fault detection by the primary and backup relays. The SPC takes appropriate action based on the impedance seen by the primary and backup relays. Performance of the proposed methodology is validated on WSCC-9 bus system in PSCAD/EMTDC environment. The results show that the proposed methodology is successful in averting distance relay malfunction due to FACTS controllers.","PeriodicalId":185930,"journal":{"name":"2018 20th National Power Systems Conference (NPSC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114234716","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
Stochastic Unit Commitment using Two Point Estimate Method with Proliferation of Wind Power 风电扩散的两点估计随机机组承诺
2018 20th National Power Systems Conference (NPSC) Pub Date : 2018-12-01 DOI: 10.1109/NPSC.2018.8771783
Shruti Ranjan, A. Abhyankar
{"title":"Stochastic Unit Commitment using Two Point Estimate Method with Proliferation of Wind Power","authors":"Shruti Ranjan, A. Abhyankar","doi":"10.1109/NPSC.2018.8771783","DOIUrl":"https://doi.org/10.1109/NPSC.2018.8771783","url":null,"abstract":"The inherent flexibility of the power system is becoming weak with the proliferation of wind generators into the traditional power system. The intermittent and uncertain wind power adds to the problem of balancing load and generation. The proposal is made in two steps: in first step, a stochastic unit commitment model is presented for scheduling of the generating units while taking note of uncertainties in terms of load and wind generation by using two point estimate method. In the second step, an analytical study is presented such that the participation of different generating units for providing generation and flexibility. With this, a comparison between the proposed approach and the deterministic approach is also presented. The proposed approach is validated on modified IEEE RTS-96 system (including 96 conventional generating units and 19 wind farms).","PeriodicalId":185930,"journal":{"name":"2018 20th National Power Systems Conference (NPSC)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114450844","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
Cuckoo Search Algorithm Based Cost Minimization by Optimal DG and Capacitor Integration in Radial Distribution Systems 基于布谷鸟搜索算法的径向配电系统最优DG和电容器集成成本最小化
2018 20th National Power Systems Conference (NPSC) Pub Date : 2018-12-01 DOI: 10.1109/NPSC.2018.8771773
Suman Biswal, Arnab Ghosh, Sajjan Kumar, N. Chakraborty, S. Goswami
{"title":"Cuckoo Search Algorithm Based Cost Minimization by Optimal DG and Capacitor Integration in Radial Distribution Systems","authors":"Suman Biswal, Arnab Ghosh, Sajjan Kumar, N. Chakraborty, S. Goswami","doi":"10.1109/NPSC.2018.8771773","DOIUrl":"https://doi.org/10.1109/NPSC.2018.8771773","url":null,"abstract":"Optimal sizing and sitting of Capacitor alone and various combinations of Capacitor with Distributed Generations (DG) units have been done by Cuckoo Search Algorithm (CSA) with the goal of minimization of overall cost. Such allocations of reactive and real power sources not only reduces the total cost but minimizes the real power loss, enhances the voltage profile and provide reliability benefits also. The formulated cost function depends upon cost per unit loss, installation cost due to Capacitor and DG allocation and also the cost associated for per kVAr and kW injection of Capacitor and DG respectively. Basic reliability index such as failure rate has been estimated before and after allocation of the reactive and real power sources. The proposed technique has been implemented in standard IEEE 33 bus radial distribution system to check the effectiveness of the proposed method. It has been found that the performance of two Capacitor and two DG allocation is the best among the chosen combinations of Capacitors and DGs.","PeriodicalId":185930,"journal":{"name":"2018 20th National Power Systems Conference (NPSC)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117197715","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
Distribution-Level Synchrophasors Estimation 分布级同步量估计
2018 20th National Power Systems Conference (NPSC) Pub Date : 2018-12-01 DOI: 10.1109/NPSC.2018.8771750
Kapil Chauhan, Ranjana Sodhi
{"title":"Distribution-Level Synchrophasors Estimation","authors":"Kapil Chauhan, Ranjana Sodhi","doi":"10.1109/NPSC.2018.8771750","DOIUrl":"https://doi.org/10.1109/NPSC.2018.8771750","url":null,"abstract":"Various time domain, frequency domain and time-frequency domain methods have been used in literature for the accurate phasor estimation in transmission-level PMUs. This paper assesses the suitability of three such methods, viz., Taylor Weighted Least Square (TWLS), Interpolated Discrete Fourier Transform (IpDFT) and Empirical Wavelet Transform (EWT), for developing the distribution-level PMU under steady state and dynamic conditions, as per the IEEE C37.118.1a-2014. The analysis is considered for fast phasor estimation by considering one cycle observation window. The Total Vector Error (TVE) and response time are chosen as performance metric. It is shown that time-domain and frequency-domain methods, although have less estimation error in case of fundamental phasor estimation and comply with PMU Std. IEEE C37.118.1a-2014, except low order harmonics and out of band interference case. However, in order to estimate the harmonics along with the fundamental phasors, time-frequency based method should be the preferred choice for implementing the D-PMUs. The additional advantage of EWT is to localize the dynamics of the signal in time-frequency plane.","PeriodicalId":185930,"journal":{"name":"2018 20th National Power Systems Conference (NPSC)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123503864","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
Influence of Ground Impedance on Unbalanced Analysis of Grid 地阻抗对电网不平衡分析的影响
2018 20th National Power Systems Conference (NPSC) Pub Date : 2018-12-01 DOI: 10.1109/NPSC.2018.8771709
R. Raghunatha, V. Muralidhara, D. Thukaram
{"title":"Influence of Ground Impedance on Unbalanced Analysis of Grid","authors":"R. Raghunatha, V. Muralidhara, D. Thukaram","doi":"10.1109/NPSC.2018.8771709","DOIUrl":"https://doi.org/10.1109/NPSC.2018.8771709","url":null,"abstract":"Renewable energy utilization and projects are being used as green energy initiatives worldwide. There are smallest possible renewable energy sources of the order of few KW to large wind mill and PV farms of the capacity of several 100 MW in India. Current systems are hybrid systems having combination of AC, DC, single phase, 3 phase, grounded and ungrounded systems with significant converters for interface with AC grid. Under these conditions the assumption that the transmission, distribution and loads are balanced is perhaps not acceptable. In this respect the influence of ground impedance modeling or more specifically the intentional impedance grounding of the neutral of the 3 phase network must be considered in the analysis. A common assumption made is “Ground potential is always at zero (0)” and neutral voltage can be eliminated in the formulation of analysis. IEEE standards however specify that ground resistance is neither zero nor uniform. Mathematical models are needed that consider the ground impedances and non zero neutral potentials of star connected windings. In this article hypothetical grounding impedances are considered and its influence on power system balanced and unbalanced operation are computed for static performance and analyzed. The outcome of the analysis shows that it is not correct to ignore ground impedance for unbalanced analysis, nor it is correct to assume neutral voltage as ‘0’ in star connected systems.","PeriodicalId":185930,"journal":{"name":"2018 20th National Power Systems Conference (NPSC)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125181207","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
Estimation and Methods of Equalizing Leakage Reactance for Multi-Winding Transformers 多绕组变压器漏抗的估计及均衡方法
2018 20th National Power Systems Conference (NPSC) Pub Date : 2018-12-01 DOI: 10.1109/NPSC.2018.8771826
Saumya Pandit, R. K. Mishra, Gaurang Chauhan
{"title":"Estimation and Methods of Equalizing Leakage Reactance for Multi-Winding Transformers","authors":"Saumya Pandit, R. K. Mishra, Gaurang Chauhan","doi":"10.1109/NPSC.2018.8771826","DOIUrl":"https://doi.org/10.1109/NPSC.2018.8771826","url":null,"abstract":"Prediction of leakage reactance in multi-winding transformer is not simple due to unconventional reluctance model. Need of predicting actual leakage reactance beforehand, accurately, arises due to its effect on transformer's performance, output and characteristic behaviour. Incorrect methodology of leakage reactance estimation gives large error in value of windings which are adjacent. Moreover, leakage reactance between winding is also not equal, causing flow of leakage current. This produces loss beyond committed value. Incapability to provide committed leakage reactance value to customer, burdens company in form of penalty. Apart from loss, controlled or semi-controlled switches may misfire. Thus, this paper deals with accurate prediction of leakage reactance between individual winding of multi-winding transformers along with a model which is industrially feasible and possessing equal leakage reactance between individual winding using finite element analysis.","PeriodicalId":185930,"journal":{"name":"2018 20th National Power Systems Conference (NPSC)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125836461","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
Prosumer Based Demand Response for Profitable Power Exchange Between End-User and Utility 基于产消的终端用户与公用事业公司电力交换的需求响应
2018 20th National Power Systems Conference (NPSC) Pub Date : 2018-12-01 DOI: 10.1109/NPSC.2018.8771770
S. Arun, M. P. Selvan
{"title":"Prosumer Based Demand Response for Profitable Power Exchange Between End-User and Utility","authors":"S. Arun, M. P. Selvan","doi":"10.1109/NPSC.2018.8771770","DOIUrl":"https://doi.org/10.1109/NPSC.2018.8771770","url":null,"abstract":"Recent advancements in electric power sector increase the interest on smart grid technologies. In various smart grid techniques, demand side management is commonly preferred by many utilities to maintain the supply demand balance. Further, utilities motivate the end users to take part in energy society through demand response programme. Recently, government encourages the residential consumers to install small scale renewable power generation units to build self-sustainability as well as support the grid by exporting their excess generation to grid. Such users are referred to as prosumers. In this paper, a prosumer based demand response algorithm under real time pricing environment is proposed to improve the savings in electricity bill by optimally choosing the operational timing of household appliances with due consideration to user's desire and interest, intermittency in renewable power generation and utility dynamics.","PeriodicalId":185930,"journal":{"name":"2018 20th National Power Systems Conference (NPSC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129599694","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: 7
Generalized Stochastic Petri Nets (GSPN) for Analysis of Microgrid under Uncertainities 不确定条件下微电网分析的广义随机Petri网(GSPN
2018 20th National Power Systems Conference (NPSC) Pub Date : 2018-12-01 DOI: 10.1109/NPSC.2018.8771852
D. Jana, N. Chakraborty
{"title":"Generalized Stochastic Petri Nets (GSPN) for Analysis of Microgrid under Uncertainities","authors":"D. Jana, N. Chakraborty","doi":"10.1109/NPSC.2018.8771852","DOIUrl":"https://doi.org/10.1109/NPSC.2018.8771852","url":null,"abstract":"Petri Nets (PNs) are extensively used to illustrate and analyze industrial systems performance under both discrete and continuous-time event conditions. Endeavor to utilize Petri Nets for building a smart grid, specially a microgrid system leads to major challenges for secure, automated and energy competent operations. This is due to uncertain function of energy resources and loads integrated into microgrid. This work proposes to promote microgrid modeling by considering variability in renewable energy resources and stochastic load profile showing indicative results depicted as under parallel computing task by Petri Nets. With the knowledge of economic green energy application, a comprehensive model has been prepared using Generalized Stochastic Petri Nets (GSPN) to reflect deliverable features of microgrid. A reachability graph is generated by useful marking to analyze the entire system properties.","PeriodicalId":185930,"journal":{"name":"2018 20th National Power Systems Conference (NPSC)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128654017","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
An Optimal Accommodation of Distributed Generation in Power Distribution Systems 配电系统中分布式发电的最优调节
2018 20th National Power Systems Conference (NPSC) Pub Date : 2018-12-01 DOI: 10.1109/NPSC.2018.8771743
B. Kiran Babu, Sydulu Maheswarapu
{"title":"An Optimal Accommodation of Distributed Generation in Power Distribution Systems","authors":"B. Kiran Babu, Sydulu Maheswarapu","doi":"10.1109/NPSC.2018.8771743","DOIUrl":"https://doi.org/10.1109/NPSC.2018.8771743","url":null,"abstract":"This work presents a novel Multi Verse Optimisation (MVO) algorithm to solve the optimal accommodation of distributed generation (OADG) problem of power distribution systems (PDS). The proposed algorithm uses the concepts of white-hole, black-hole and worm-hole to realise the algorithm steps. The white-hole is used in the exploration phase. Whereas the black-hole and worm-hole are used in exploitation phase. The objectives to be optimised are: minimisation of real power loss, minimisation of bus voltage deviation, and maximisation of voltage stability index. The proposed approach is validated through IEEE 33-bus and IEEE 69-bus radial power distribution systems and results are compared with genetic algorithm (GA), Particle swarm optimisation (PSO), Hybrid GA-PSO, Teaching learning based optimisation (TLBO), and Quasi-oppositional teaching learning based optimisation (QOTLBO) algorithms and found to be promising.","PeriodicalId":185930,"journal":{"name":"2018 20th National Power Systems Conference (NPSC)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121121522","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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