{"title":"A Passive Islanding Detection Technique for Grid-Connected Photovoltaic Inverters","authors":"Amit Singh, R. Bhatia, S. Chanana, Pankaj Gupta","doi":"10.1109/SCEECS.2018.8546918","DOIUrl":"https://doi.org/10.1109/SCEECS.2018.8546918","url":null,"abstract":"One of the problem associated with grid connected distribution generator is islanding, which occurs when a disconnected distribution generator is energized unintentionally. If islanding is not detected quickly it could pose a serious threat to the distribution generator and to the personnel working. The islanding methods that are available use system parameter to distinguish between islanding and non-islanding condition. This paper presents a passive islanding detection method based on the difference of ripple content of voltage at the point of common coupling during non-islanding and islanding period. Islanding is detected whenever the ripple content of the voltage at point of common coupling breaches the set threshold level for fixed period of time. This method distinguishes the islanding condition from the other grid disturbances efficiently and detects whenever an islanding occurs. The various islanding and non-islanding condition were simulated to test the working of this method. It was inferred that the proposed method did not exhibit any non-detection zone and was able to detect all types of islanding cases within 300ms of the allowed delay time.Theoretical analysis and simulation results are presented to validate the proposed method.","PeriodicalId":446667,"journal":{"name":"2018 IEEE International Students' Conference on Electrical, Electronics and Computer Science (SCEECS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125863665","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":"Investigation of Power Quality Events in Distribution Network with Wind Energy Penetration","authors":"Om Prakash Mahela, Pragati Prajapati, Shoyab Ali","doi":"10.1109/sceecs.2018.8546945","DOIUrl":"https://doi.org/10.1109/sceecs.2018.8546945","url":null,"abstract":"This research work aims to present a Stockwell transform based technique for the investigation of the power quality disturbances associated with wind energy conversion system integrated with the utility grid due to the operational events such as switching on and off the capacitor banks, switching on and off the loads, tripping and reclosing the feeders. The power quality disturbances associated with the considered events has been investigated and effectively detected with the help of proposed algorithm using the various S-transform based plots. The detailed simulation study of power quality disturbances has been carried out in MATLAB/Simulink environment using the IEEE-13 bus test system incorporated with the wind energy conversion system.","PeriodicalId":446667,"journal":{"name":"2018 IEEE International Students' Conference on Electrical, Electronics and Computer Science (SCEECS)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126938567","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}
Mohammad Imroz Khan, A. Chandra, Vikash Kumar, Sushrut Das
{"title":"A Planar Dual Band Dual Polarized Slot Antenna Using Coplanar Waveguide","authors":"Mohammad Imroz Khan, A. Chandra, Vikash Kumar, Sushrut Das","doi":"10.1109/sceecs.2018.8546928","DOIUrl":"https://doi.org/10.1109/sceecs.2018.8546928","url":null,"abstract":"A dual band dual polarized planar slot antenna using coplanar waveguide feed (CPW) is presented in this letter. The proposed antenna consists of a pentagonal shaped ground and a stair shaped radiating patch directly connected to feed. Pentagonal slot is perturbed by a rectangular stub embedded in the ground and ground is modified by etching a rectangular slot in the ground. The proposed antenna exhibits dual band characteristics with lower band linearly polarized and upper band circular polarized. Asymmetric excitation resulting due to stair shaped patch results in excitation of circular polarized radiations for the upper band while the lower band remains linearly polarized. The linear polarized lower band extends from 1.98GHz-3.78GHz while overlapping upper band i.e. VSWR less than 2 dB and Axial ratio less than 3dB exists from 4.6GHz-5.9GHz,thereby proposed antenna covering Bluetooth and WLAN usable bands by dual resonating bands.","PeriodicalId":446667,"journal":{"name":"2018 IEEE International Students' Conference on Electrical, Electronics and Computer Science (SCEECS)","volume":"105 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122630841","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}