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Voltage Regulation of DC Microgrid by Robust Back-stepping Control Technique of Voltage Source Converter 基于电压源变换器鲁棒反步控制技术的直流微电网电压调节
2018 20th National Power Systems Conference (NPSC) Pub Date : 2018-12-01 DOI: 10.1109/NPSC.2018.8771871
Vibhuti Nougain, B. K. Panigrahi
{"title":"Voltage Regulation of DC Microgrid by Robust Back-stepping Control Technique of Voltage Source Converter","authors":"Vibhuti Nougain, B. K. Panigrahi","doi":"10.1109/NPSC.2018.8771871","DOIUrl":"https://doi.org/10.1109/NPSC.2018.8771871","url":null,"abstract":"DC micro-grids are gaining wide acceptance in the smart grid paradigm. Integration of renewable and clean energy resources either in the transmission or distribution systems require effective control strategy for system operation and stability. This work presents a robust control strategy for a Voltage Source Converter (VSC) interfacing an integrated system comprising of Photo-Voltaic (PV) array and a battery unit with grid. Such a system is associated with intermittent output power and uncertain demand of the PV and load units, respectively. In order to make the control strategy robust to the power exchange through the point of common coupling (PCC), a new control design of VSC is proposed and theoretically validated. Detailed Lyapunov synthesis has been done to design a control strategy so that the system experiences stable DC link voltage despite of external disturbances. Extensive simulation studies have been carried out to ensure robust tracking performance and system stability against disturbance seen at the PCC.","PeriodicalId":185930,"journal":{"name":"2018 20th National Power Systems Conference (NPSC)","volume":"41 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":"116626732","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
CoDiT: Commissioning Diagnostic Tool for WAMS Based Linear State Estimation of Power Systems 基于WAMS的电力系统线性状态估计调试诊断工具
2018 20th National Power Systems Conference (NPSC) Pub Date : 2018-12-01 DOI: 10.1109/NPSC.2018.8771830
G. Gajjar, R. Gajbhiye, Meenal Chougule, S. Soman
{"title":"CoDiT: Commissioning Diagnostic Tool for WAMS Based Linear State Estimation of Power Systems","authors":"G. Gajjar, R. Gajbhiye, Meenal Chougule, S. Soman","doi":"10.1109/NPSC.2018.8771830","DOIUrl":"https://doi.org/10.1109/NPSC.2018.8771830","url":null,"abstract":"Linear state estimation through wide area monitoring of power systems using synchrophasors is one of the standard application. There are several ongoing projects throughout the world that utilize WAMS technology for performing state estimation for high voltage transmission network. Successful deployment of state estimation requires reliable PMU streaming data and transmission system network static information. A good database building is necessary to handle the mapping of PMU data with power system information. This paper discusses the development of a commissioning and diagnostic tool during deployment of linear state estimation tool. Important features of the diagnostic tool developed to aid the commissioning in a control center environment are presented. Results of error identification on a practical system and improvements in state estimation through the tool is presented.","PeriodicalId":185930,"journal":{"name":"2018 20th National Power Systems Conference (NPSC)","volume":"18 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":"116934868","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
A Minimalistic Approach for Wide-Area Out-of-Step Identification 广域失步识别的简约方法
2018 20th National Power Systems Conference (NPSC) Pub Date : 2018-12-01 DOI: 10.1109/NPSC.2018.8771837
G. V. N. YatendraBabu, N. R. Naguru, V. Sarkar
{"title":"A Minimalistic Approach for Wide-Area Out-of-Step Identification","authors":"G. V. N. YatendraBabu, N. R. Naguru, V. Sarkar","doi":"10.1109/NPSC.2018.8771837","DOIUrl":"https://doi.org/10.1109/NPSC.2018.8771837","url":null,"abstract":"Rotor angle instability (out-of-step or transient instability) in the power system is an immediate predicament to the safe operation of the system. The out-of-step condition left untreated may escalate into a widespread outage. Identification of the out-of-step condition is a necessary precursor to the power system operation tools such as controlled islanding to prevent system-wide collapse. The controlled islanding needs system-wide consideration for an effective mitigation plan. The conventional out-of-step detection is often devised without considering the wide-area scenario. A wide-area out-of-step identification approach based on frequency measurements is evaluated in this paper. Most of the times, the out-of-step results disconnection of equipment or part of the system. Hence, the proposed approach allocates priority to avoid false detection thus preventing unnecessary system separation or disconnection. The methodology proposed is thoroughly verified for accuracy and performance using the 68-Bus system.","PeriodicalId":185930,"journal":{"name":"2018 20th National Power Systems Conference (NPSC)","volume":"23 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":"115060102","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
Multi-Objective Residential Demand Side Management with Game Theory Approach
2018 20th National Power Systems Conference (NPSC) Pub Date : 2018-12-01 DOI: 10.1109/NPSC.2018.8771840
B. Lokeshgupta, S. Sivasubramani
{"title":"Multi-Objective Residential Demand Side Management with Game Theory Approach","authors":"B. Lokeshgupta, S. Sivasubramani","doi":"10.1109/NPSC.2018.8771840","DOIUrl":"https://doi.org/10.1109/NPSC.2018.8771840","url":null,"abstract":"Residential demand side management (DSM) methods are essentially required to overcome the future energy crisis. From the practical point of view, multiple objectives need to be considered in the DSM implementation. Therefore this paper proposes a multi-objective residential DSM problem based on a game theory approach. Two different DSM objectives such as the minimization of the consumers' energy bill and the minimization of the peak load demand are considered in this work. A cooperative game theory approach is used in this paper to generate the best compromise solution based on the concept of super-criterion and Pareto-minimum solution. According to the cooperative game approach, each DSM objective acts as a player and finally, all players can get win-win nature with collective negotiations. The proposed DSM method is successfully evaluated with different scenarios having different number of residential consumers like 10, 100, 500, and 1000. Simulation results show that the proposed game based multi-objective residential DSM is able to find the best compromise solution for all the scenarios.","PeriodicalId":185930,"journal":{"name":"2018 20th National Power Systems Conference (NPSC)","volume":"1007 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":"123114004","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
Recent Trends on Performance Analysis of Latency on Wide Area Technologies in Smart Grids 智能电网中广域技术时延性能分析的最新趋势
2018 20th National Power Systems Conference (NPSC) Pub Date : 2018-12-01 DOI: 10.1109/NPSC.2018.8771705
Gopakumar Pathirikkat, Balimidi Mallikajuna, M. J. Bharata Reddy
{"title":"Recent Trends on Performance Analysis of Latency on Wide Area Technologies in Smart Grids","authors":"Gopakumar Pathirikkat, Balimidi Mallikajuna, M. J. Bharata Reddy","doi":"10.1109/NPSC.2018.8771705","DOIUrl":"https://doi.org/10.1109/NPSC.2018.8771705","url":null,"abstract":"Numerous researches and real time studies are being conducted on wide area technologies for emerging smart power grids. These technologies include measurements, control and protection. The backbone of wide area technologies is synchronized measurements using phasor measurement units (PMU). One of the major challenges faced in practical implementation of wide area technologies is time delay (latency) in communication. Various researches have highlighted that latency study is essential for effective wide area schemes under contingencies. Interdependence of smart grid technologies with power flow control and PMU communication constraints, challenges the performance of entire power grid. Time delays in communication within wide area monitoring system (WAMS) can substantially degrade the stability and quality of control actions. This paper investigates the effect of communication latency associated with wide area technologies on various smart grid operations.","PeriodicalId":185930,"journal":{"name":"2018 20th National Power Systems Conference (NPSC)","volume":"87 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":"124919492","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
A Buck-Boost Converter with DC Link Voltage Boost for Minimizing Torque Ripple in Brushless DC Motor 一种具有直流链路升压的Buck-Boost变换器，用于减小无刷直流电动机的转矩脉动
2018 20th National Power Systems Conference (NPSC) Pub Date : 2018-12-01 DOI: 10.1109/NPSC.2018.8771853
K. Rajesh, S. Durgaprasanth, C. Nagamani, G. Saravana Ilango
{"title":"A Buck-Boost Converter with DC Link Voltage Boost for Minimizing Torque Ripple in Brushless DC Motor","authors":"K. Rajesh, S. Durgaprasanth, C. Nagamani, G. Saravana Ilango","doi":"10.1109/NPSC.2018.8771853","DOIUrl":"https://doi.org/10.1109/NPSC.2018.8771853","url":null,"abstract":"Buck-boost converter connected in between the input DC source and three phase bridge inverter, used for minimizing the commutation torque ripples in Permanent Magnet Brushless DC Motor is presented in this paper. Torque during the commutation period depends on phase current which is not undergoing commutation, so by controlling it, torque ripple can be minimized. Moreover, a greater DC link voltage is needed during the commutation time period in comparison to the normal conduction period. The Buck-boost converter operates in boost mode in commutation period for stepping up the DC voltage to the inverter. A simple mode switching circuit is employed to amend the output modes of the Buck-boost converter in normal and commutation time intervals. Simulation studies of this topology are carried out in MATLAB/Simulink environment.","PeriodicalId":185930,"journal":{"name":"2018 20th National Power Systems Conference (NPSC)","volume":"35 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":"123391763","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
A Comparative Study Between Prony and Eigensystem Realization Algorithm for Identification of Electromechanical Modes 机电模式识别的proony与特征系统实现算法的比较研究
2018 20th National Power Systems Conference (NPSC) Pub Date : 2018-12-01 DOI: 10.1109/NPSC.2018.8771722
Niloy Sarkar, Krishna Rao, K. Shubhanga
{"title":"A Comparative Study Between Prony and Eigensystem Realization Algorithm for Identification of Electromechanical Modes","authors":"Niloy Sarkar, Krishna Rao, K. Shubhanga","doi":"10.1109/NPSC.2018.8771722","DOIUrl":"https://doi.org/10.1109/NPSC.2018.8771722","url":null,"abstract":"Two measurement-based ring-down electromechanical mode identification algorithms, namely Prony and Eigensystem Realization Algorithm (ERA) are taken up for a comparative study. Since the number of excited modes might vary in a practical power system, it is not easy to determine the model order. This requires an iterative procedure in case of Prony whereas a Singular Value Decomposition (SVD)-based technique achieves this directly in case of ERA as demonstrated through two case studies. It is further shown that ERA estimates the signal better and generates less number of trivial modes as compared to Prony.","PeriodicalId":185930,"journal":{"name":"2018 20th National Power Systems Conference (NPSC)","volume":"96 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":"128979454","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
Novel Non-isolated Modified Interleaved DC-DC Converter to Integrate Ultracapacitor and Battery Sources for Electric Vehicle Application 集成超级电容器和电池电源的新型非隔离改进型交错DC-DC变换器
2018 20th National Power Systems Conference (NPSC) Pub Date : 2018-12-01 DOI: 10.1109/NPSC.2018.8771810
S. Kumaravel, G. G. Kumar, K. Veeranna, V. Karthikeyan
{"title":"Novel Non-isolated Modified Interleaved DC-DC Converter to Integrate Ultracapacitor and Battery Sources for Electric Vehicle Application","authors":"S. Kumaravel, G. G. Kumar, K. Veeranna, V. Karthikeyan","doi":"10.1109/NPSC.2018.8771810","DOIUrl":"https://doi.org/10.1109/NPSC.2018.8771810","url":null,"abstract":"Replacing the internal combustion engine with an electric motor in the vehicular technology is taking place globally to reduce the depletion of fossil fuels, pollution and the effect of global warming. A proper power electronics circuitry is very essential in the electric vehicle to integrate different energy sources effectively. A novel modified interleaved dual input – single output dc-dc converter is introduced in this paper to integrate the battery and ultracapacitor. The introduced converter is able to deliver power individually and/or simultaneously from the two input sources to meet the demand of electric vehicular loads. The same converter can be used to charge one of the input sources from another source without any additional circuits. The steady state output equation of the converter based on its modes of operation is derived. Small signal model of the converter is obtained and dynamic performance is also verified. The validity of the converter is carried out by a detail simulation study and the simulation results are confirmed with the results obtained from the experiment. Performance comparison of the proposed converter with the existing converters is carried out in terms of voltage gain. The proposed converter offers lesser components count, simplified structure, and enhanced efficiency compared to the existing converters.","PeriodicalId":185930,"journal":{"name":"2018 20th National Power Systems Conference (NPSC)","volume":"126 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":"128697785","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: 8
Undecimated Wavelet Packet Transform Based Visualization of Time-Varying Power Quality Disturbance 基于未消差小波包变换的时变电能质量扰动可视化
2018 20th National Power Systems Conference (NPSC) Pub Date : 2018-12-01 DOI: 10.1109/NPSC.2018.8771721
V. K. Tiwari, Himanshu Bhusan Sandhibigraha, A. Umarikar, Trapti Jain
{"title":"Undecimated Wavelet Packet Transform Based Visualization of Time-Varying Power Quality Disturbance","authors":"V. K. Tiwari, Himanshu Bhusan Sandhibigraha, A. Umarikar, Trapti Jain","doi":"10.1109/NPSC.2018.8771721","DOIUrl":"https://doi.org/10.1109/NPSC.2018.8771721","url":null,"abstract":"In this paper, a method is presented for visualization of time-varying power quality disturbances in electrical power distribution system using undecimated wavelet packet transform (UWPT). The proposed method decomposes the input signal in various frequency bands and provides clear visualization of fundamental and each harmonic components. The UWPT is a time-invariant transform, which can lead to better understanding of time-dependent power quality disturbances. Various type of stationary and time-varying waveforms have been used to show the effectiveness of the proposed scheme. The results confirm that the proposed technique based on UWPT efficiently decomposes the fundamental and harmonics component from the distorted signal, reflecting its suitability for power quality monitoring and analysis.","PeriodicalId":185930,"journal":{"name":"2018 20th National Power Systems Conference (NPSC)","volume":"75 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":"126181346","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
Flower Pollination Algorithm Based Sizing and Placement of DG and D-STATCOM Simultaneously in Radial Distribution Systems 径向配电系统中基于DG和D-STATCOM的同步授粉算法
2018 20th National Power Systems Conference (NPSC) Pub Date : 2018-12-01 DOI: 10.1109/NPSC.2018.8771803
Vittal Bhat, Manjappa
{"title":"Flower Pollination Algorithm Based Sizing and Placement of DG and D-STATCOM Simultaneously in Radial Distribution Systems","authors":"Vittal Bhat, Manjappa","doi":"10.1109/NPSC.2018.8771803","DOIUrl":"https://doi.org/10.1109/NPSC.2018.8771803","url":null,"abstract":"In this paper, various distribution systems are analyzed for optimal placement and sizing of Distributed Generation (DG) & Distribution Static Compensator (D-STATCOM) incorporated by Flower Pollination Algorithm (FPA). The Loss Sensitivity Factor (LSF) is considered as a critical aspect in determining the selection of candidate buses for installation of DG and D-STATCOM. In order to demonstrate the effectiveness of FPA it is implemented on 15, 33 and 69 bus radial distribution systems (RDS) to derive the locations and sizing of DG and D-STATCOM based on the selected candidate buses. Comparison of the results obtained by the FPA with the base case infers that the power losses are reduced with increased net saving and improved voltage profiles for the tested distribution systems.","PeriodicalId":185930,"journal":{"name":"2018 20th National Power Systems Conference (NPSC)","volume":"6 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":"125727772","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: 8
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