Pub Date : 2021-01-01DOI: 10.13067/JKIECS.2021.16.2.261
Y. Ko
In this study, the design methodology of LCL filter for grid-connected three-phase inverter was studied. First, the advantages and disadvantages of applying typical filter structures as a filter for grid connection of a three-phase inverter were analyzed. Next, filter design methodologies for grid connection of a three-phase inverter were analyzed, and an effective filter design methodology was determined to satisfy the harmonic requirements in grid connection. In order to verify the effectiveness of the design methodology, EMTP models such as a three-phase inverter, a three-phase LCL filter, and a performance evaluation system to evaluate the performance of the designed filter were developed using EMTP-RV. Next, an LCL filter was designed for an application example of a three-phase inverter, and the waveforms of the output voltage and outage current of the three-phase inverter were checked through EMTP-RV simulation work. In particular, the validity of the design methodology was verified by confirming that the magnitude of the current ripple was reduced to a limited magnitude through waveform analysis of the output current.
{"title":"A Study on LCL Filter Design and EMTP-RV Simulation for Grid-connected Three Phase Inverter","authors":"Y. Ko","doi":"10.13067/JKIECS.2021.16.2.261","DOIUrl":"https://doi.org/10.13067/JKIECS.2021.16.2.261","url":null,"abstract":"In this study, the design methodology of LCL filter for grid-connected three-phase inverter was studied. First, the advantages and disadvantages of applying typical filter structures as a filter for grid connection of a three-phase inverter were analyzed. Next, filter design methodologies for grid connection of a three-phase inverter were analyzed, and an effective filter design methodology was determined to satisfy the harmonic requirements in grid connection. In order to verify the effectiveness of the design methodology, EMTP models such as a three-phase inverter, a three-phase LCL filter, and a performance evaluation system to evaluate the performance of the designed filter were developed using EMTP-RV. Next, an LCL filter was designed for an application example of a three-phase inverter, and the waveforms of the output voltage and outage current of the three-phase inverter were checked through EMTP-RV simulation work. In particular, the validity of the design methodology was verified by confirming that the magnitude of the current ripple was reduced to a limited magnitude through waveform analysis of the output current.","PeriodicalId":22843,"journal":{"name":"The Journal of the Korea institute of electronic communication sciences","volume":"5 1","pages":"261-270"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81182886","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}
Pub Date : 2021-01-01DOI: 10.13067/JKIECS.2021.16.1.95
Jiseon Moon, Jang-Hyuk Moon, Sung-Hoon Bae
{"title":"Control for Manipulator of an Underwater Robot Using Meta Reinforcement Learning","authors":"Jiseon Moon, Jang-Hyuk Moon, Sung-Hoon Bae","doi":"10.13067/JKIECS.2021.16.1.95","DOIUrl":"https://doi.org/10.13067/JKIECS.2021.16.1.95","url":null,"abstract":"","PeriodicalId":22843,"journal":{"name":"The Journal of the Korea institute of electronic communication sciences","volume":"16 1","pages":"95-100"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75022578","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}
Pub Date : 2021-01-01DOI: 10.13067/JKIECS.2021.16.1.75
Sirojiddin Salimov, YOOJaehung
{"title":"A Design of Small Scale Deep CNN Model for Facial Expression Recognition using the Low Resolution Image Datasets","authors":"Sirojiddin Salimov, YOOJaehung","doi":"10.13067/JKIECS.2021.16.1.75","DOIUrl":"https://doi.org/10.13067/JKIECS.2021.16.1.75","url":null,"abstract":"","PeriodicalId":22843,"journal":{"name":"The Journal of the Korea institute of electronic communication sciences","volume":"16 1","pages":"75-80"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79511769","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}
Pub Date : 2021-01-01DOI: 10.13067/JKIECS.2021.16.1.191
Moon Seongjae, Young-Woo Kim, Yeongseog Lim
{"title":"Image Sensor Module for Detecting Spatial Color Temperature in Indoor Environment","authors":"Moon Seongjae, Young-Woo Kim, Yeongseog Lim","doi":"10.13067/JKIECS.2021.16.1.191","DOIUrl":"https://doi.org/10.13067/JKIECS.2021.16.1.191","url":null,"abstract":"","PeriodicalId":22843,"journal":{"name":"The Journal of the Korea institute of electronic communication sciences","volume":"8 1","pages":"191-196"},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74311527","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}
Pub Date : 2020-01-01DOI: 10.13067/JKIECS.2020.15.4.779
L. Kwang
In this paper, we improved the high frequency noise characteristics of the previously proposed hearing aid circuits for presbycusis, and we designed and fabricated a stereo hearing aid module. The cause of high frequency noise, which occurs in some cases in the previous circuits under high gain conditions, was analyzed through simulations. Two mute switches were added to adjust each boosting gain for right and left ears more accurately by muting the sound of the other ear when adjusting the gain of one ear in the stereo hearing aid module.
{"title":"Design of a Stereo Hearing Aid Module for Presbycusis","authors":"L. Kwang","doi":"10.13067/JKIECS.2020.15.4.779","DOIUrl":"https://doi.org/10.13067/JKIECS.2020.15.4.779","url":null,"abstract":"In this paper, we improved the high frequency noise characteristics of the previously proposed hearing aid circuits for presbycusis, and we designed and fabricated a stereo hearing aid module. The cause of high frequency noise, which occurs in some cases in the previous circuits under high gain conditions, was analyzed through simulations. Two mute switches were added to adjust each boosting gain for right and left ears more accurately by muting the sound of the other ear when adjusting the gain of one ear in the stereo hearing aid module.","PeriodicalId":22843,"journal":{"name":"The Journal of the Korea institute of electronic communication sciences","volume":"165 1","pages":"779-784"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75641096","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}
Pub Date : 2020-01-01DOI: 10.13067/JKIECS.2020.15.2.225
Dae-Sung Jang, Hyo-Seung Lee, Jae-Chul Oh
{"title":"Design of Individual 3D Printer Remote Safety and Quality Management System Based on IoT Beacon","authors":"Dae-Sung Jang, Hyo-Seung Lee, Jae-Chul Oh","doi":"10.13067/JKIECS.2020.15.2.225","DOIUrl":"https://doi.org/10.13067/JKIECS.2020.15.2.225","url":null,"abstract":"","PeriodicalId":22843,"journal":{"name":"The Journal of the Korea institute of electronic communication sciences","volume":"7 1","pages":"225-230"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78436195","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}
Pub Date : 2020-01-01DOI: 10.13067/JKIECS.2020.15.3.439
T. Yun
{"title":"Ultra-wideband BSF Using Multi-stage FSCS","authors":"T. Yun","doi":"10.13067/JKIECS.2020.15.3.439","DOIUrl":"https://doi.org/10.13067/JKIECS.2020.15.3.439","url":null,"abstract":"","PeriodicalId":22843,"journal":{"name":"The Journal of the Korea institute of electronic communication sciences","volume":"68 1","pages":"439-444"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72647110","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}
Pub Date : 2020-01-01DOI: 10.13067/JKIECS.2020.15.3.457
Jung-Eun Hwang, Kang-Won Lee, Sukju Jung
{"title":"A Study on the Multi-Tactical Data Link Data Management","authors":"Jung-Eun Hwang, Kang-Won Lee, Sukju Jung","doi":"10.13067/JKIECS.2020.15.3.457","DOIUrl":"https://doi.org/10.13067/JKIECS.2020.15.3.457","url":null,"abstract":"","PeriodicalId":22843,"journal":{"name":"The Journal of the Korea institute of electronic communication sciences","volume":"16 1","pages":"457-464"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79129301","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}
Pub Date : 2020-01-01DOI: 10.13067/JKIECS.2020.15.6.1003
Chung Kyuhyuk
{"title":"Analyses on Achievable Data Rate for Single-User Decoding(SUD) Receiver: with Application to CIS NOMA Strong Channel User","authors":"Chung Kyuhyuk","doi":"10.13067/JKIECS.2020.15.6.1003","DOIUrl":"https://doi.org/10.13067/JKIECS.2020.15.6.1003","url":null,"abstract":"","PeriodicalId":22843,"journal":{"name":"The Journal of the Korea institute of electronic communication sciences","volume":"1 1","pages":"1003-1010"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84347990","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}
Pub Date : 2020-01-01DOI: 10.13067/JKIECS.2020.15.2.299
Chanho Yoon
{"title":"The study of Authorized / Unauthorized Vehicle Recognition System using Image Recognition with Neural Network","authors":"Chanho Yoon","doi":"10.13067/JKIECS.2020.15.2.299","DOIUrl":"https://doi.org/10.13067/JKIECS.2020.15.2.299","url":null,"abstract":"","PeriodicalId":22843,"journal":{"name":"The Journal of the Korea institute of electronic communication sciences","volume":"42 1","pages":"299-306"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85234471","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}
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