Pub Date : 2017-08-01DOI: 10.1109/INTERCON.2017.8079726
E. H. Cayo, Ernesto Palo Tejada, Victoria Campos Falcon
The present paper is part of a larger project which aims to monitor and mitigate dust on the PV systems in the city of Arequipa. Its objective is to present a simplified model for simulating PV panels for the design and project maximum power point tracker - MPPT controllers. With an experimental setup, signals of voltage, current, power, irradiance and temperature were acquired. A SEPIC converter that can be controlled electronically was simulated and implemented for using it as variable load. The PV model identified was subject to simulation considering variations of temperature and irradiance. Through these simulation, a MPP voltage set point function was identified. Finally a PI controller was implemented for MPPT system to simulate the identified PV model.
{"title":"Identification of PV system model for simulation of MPPT controllers","authors":"E. H. Cayo, Ernesto Palo Tejada, Victoria Campos Falcon","doi":"10.1109/INTERCON.2017.8079726","DOIUrl":"https://doi.org/10.1109/INTERCON.2017.8079726","url":null,"abstract":"The present paper is part of a larger project which aims to monitor and mitigate dust on the PV systems in the city of Arequipa. Its objective is to present a simplified model for simulating PV panels for the design and project maximum power point tracker - MPPT controllers. With an experimental setup, signals of voltage, current, power, irradiance and temperature were acquired. A SEPIC converter that can be controlled electronically was simulated and implemented for using it as variable load. The PV model identified was subject to simulation considering variations of temperature and irradiance. Through these simulation, a MPP voltage set point function was identified. Finally a PI controller was implemented for MPPT system to simulate the identified PV model.","PeriodicalId":229086,"journal":{"name":"2017 IEEE XXIV International Conference on Electronics, Electrical Engineering and Computing (INTERCON)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126063559","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}
This article describes the implementation of an inexpensive electrochemical instrument and its performance when it is used to measure the chemical oxygen demand (COD). Low cost precision electronic devices and electrochemical system were used to build it. Homemade copper electrode let made COD measurements in synthetic wastewater. Excellent results were achieved against conventional method for COD measurement.
{"title":"Measure of chemical oxygen demand by an inexpensive electrochemical instrument","authors":"Tito Arévalo-Ramírez, Tanya Carchi-Tandazo, Oswaldo Alcívar-Peláez, Byron Lapo-Calderón","doi":"10.1109/INTERCON.2017.8079684","DOIUrl":"https://doi.org/10.1109/INTERCON.2017.8079684","url":null,"abstract":"This article describes the implementation of an inexpensive electrochemical instrument and its performance when it is used to measure the chemical oxygen demand (COD). Low cost precision electronic devices and electrochemical system were used to build it. Homemade copper electrode let made COD measurements in synthetic wastewater. Excellent results were achieved against conventional method for COD measurement.","PeriodicalId":229086,"journal":{"name":"2017 IEEE XXIV International Conference on Electronics, Electrical Engineering and Computing (INTERCON)","volume":"132 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121566507","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 : 1900-01-01DOI: 10.1109/INTERCON.2017.8079708
Luiza Matos, Daisy Silva, E. Soler
The purpose of an Optimal Power Flow (OPF) problem is to determine the state of an electric power transmission system that optimizes a given system performance and satisfies its physical and operational constraints. The OPF problem can be mathematically modeled as a nonlinear programming problem with discrete and continuous variables. In this paper, we investigate the efficiency of the Branch-and-Bound method in solving the OPF problem considering its continuous and discrete variables. In order to, three different solutions algorithms involving this method are analyzed. Numerical tests with the IEEE 14, 30, 118 and 300 buses electrical systems are presented.
{"title":"An analysis of the branch-and-bound method in solving the reactive optimal power flow problem","authors":"Luiza Matos, Daisy Silva, E. Soler","doi":"10.1109/INTERCON.2017.8079708","DOIUrl":"https://doi.org/10.1109/INTERCON.2017.8079708","url":null,"abstract":"The purpose of an Optimal Power Flow (OPF) problem is to determine the state of an electric power transmission system that optimizes a given system performance and satisfies its physical and operational constraints. The OPF problem can be mathematically modeled as a nonlinear programming problem with discrete and continuous variables. In this paper, we investigate the efficiency of the Branch-and-Bound method in solving the OPF problem considering its continuous and discrete variables. In order to, three different solutions algorithms involving this method are analyzed. Numerical tests with the IEEE 14, 30, 118 and 300 buses electrical systems are presented.","PeriodicalId":229086,"journal":{"name":"2017 IEEE XXIV International Conference on Electronics, Electrical Engineering and Computing (INTERCON)","volume":"1 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":"130516721","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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