P. Luz, M. Cosetin, P. Bolzan, Thiago Maboni, M. F. D. Silva, R. N. Prado
{"title":"An integrated insulated Buck-Boost-Flyback converter to feed LED's lamps to street lighting with reduced capacitances","authors":"P. Luz, M. Cosetin, P. Bolzan, Thiago Maboni, M. F. D. Silva, R. N. Prado","doi":"10.1109/ICIT.2015.7125213","DOIUrl":"https://doi.org/10.1109/ICIT.2015.7125213","url":null,"abstract":"This paper presents the project of an integrated insulated converter to feed a LED's lamp to street lighting systems. An integrated Buck-Boost-Flyback was designed, as well a control technique to reduce the capacitances value and the paper also presents the parameters and experimental results of the integrated converter.","PeriodicalId":369475,"journal":{"name":"2014 11th IEEE/IAS International Conference on Industry Applications","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129724152","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}
Esio E. dos Santos Fo, F. M. Antunes, E. M. Sá, Rodrigo L. dos Santos, P. Miranda
{"title":"Off-line a single-stage resonant switched capacitor high-power-factor LED driver","authors":"Esio E. dos Santos Fo, F. M. Antunes, E. M. Sá, Rodrigo L. dos Santos, P. Miranda","doi":"10.1109/INDUSCON.2014.7059468","DOIUrl":"https://doi.org/10.1109/INDUSCON.2014.7059468","url":null,"abstract":"This paper proposes a resonant switched capacitor-based converter to driver high power light emitting diodes (LEDs). Unlike the traditional switched capacitor based one, the proposed converter uses an inductor to avoid the forced charging and discharging operation reducing stress current in circuit. The proposed converter provides inherent power factor correction (PFC) and the switched capacitors are used as isolation capacitors. The basic description of the topologcy is presented and a 49 W, 220 V ac grid laboratory prototypes has been implemented. The experimental results presented demonstrate the technical feasibility of the proposed converter applied as LED driver.","PeriodicalId":369475,"journal":{"name":"2014 11th IEEE/IAS International Conference on Industry Applications","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129649704","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":"Least squares optimization of zero crossing technique for frequency estimation of power system grid distorted sinusoidal signals","authors":"T. Mendonca, M. Pinto, C. Duque","doi":"10.1109/INDUSCON.2014.7059443","DOIUrl":"https://doi.org/10.1109/INDUSCON.2014.7059443","url":null,"abstract":"Reliable frequency estimation is considered crucial for several industrial applications, such as power control, power system protection and monitoring. In certain applications is required an accurate and fast frequency estimations of the sinusoidal signals. Several algorithms are found in literature able to solve this task. However, their responses under low Signal to Noise Ratio (SNR) are not reliable. In this paper is proposed an optimization by least squares of the well-known zero-crossing technique in order to enhance performance under such condition. To validate the algorithm, it was performed some comparisons with other methods using different values of frequency. The presented technique has shown better results regarding the estimation error.","PeriodicalId":369475,"journal":{"name":"2014 11th IEEE/IAS International Conference on Industry Applications","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123829854","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}
Alexandre Moriel da Silva, M. Oleskovicz, Ricardo Augusto Souza Fernandes, Flavio Resende Garcia
{"title":"A feasibility study of the classical computational model used to represent power capacitors by comparing the simulation response and the real power capacitors response tested in a controlled laboratory environment","authors":"Alexandre Moriel da Silva, M. Oleskovicz, Ricardo Augusto Souza Fernandes, Flavio Resende Garcia","doi":"10.1109/INDUSCON.2014.7059420","DOIUrl":"https://doi.org/10.1109/INDUSCON.2014.7059420","url":null,"abstract":"This paper has as aim to present a comparative study between the classic power capacitors model implemented in the software dedicated to power quality analysis and the real power capacitors response tested in a controlled laboratory environment. This classic model is composed by a resistance connected in series with a capacitive element and is not sensitive to harmonic distortion. MATLAB - Simulink was used to model the system's components and to simulate the processes. The two regular technologies applied to manufactured power capacitors, well-known as \"all-film\" capacitor and as metalized polypropylene capacitor, were used for the laboratory tests. The simulation results were analyzed and compared to the laboratory tests data. Results show that the classical model capacitor has excellent accuracy when fed by a sinusoidal waveform. However, when fed by a nonsinusoidal waveform, it has demonstrated limitations that will be reported in this paper.","PeriodicalId":369475,"journal":{"name":"2014 11th IEEE/IAS International Conference on Industry Applications","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133066558","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}
A. F. B. O. Silva, S. M. Silva, B. Filho, B. Lopes
{"title":"Mineirão world cup stadium PV plant — A case study","authors":"A. F. B. O. Silva, S. M. Silva, B. Filho, B. Lopes","doi":"10.1109/INDUSCON.2014.7059437","DOIUrl":"https://doi.org/10.1109/INDUSCON.2014.7059437","url":null,"abstract":"This paper presents a case study about a PV plant installed on the Mineiräo world cup stadium located in Belo Horizonte, Brazil. An unstable behavior on the line to neutral voltage has been identified on the commissioning of the inverters threatening the loads connected to the transformer and the equipment of the power systems. The root cause of the problem has been identified and a solution to it proposed. Simulation and measurements taken on the actual plant validate the solution and are also presented.","PeriodicalId":369475,"journal":{"name":"2014 11th IEEE/IAS International Conference on Industry Applications","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114855068","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}
Reuben P. R. Sousa, C. Jacobina, V. B. Melo, N. B. de Freitas
{"title":"AC drive systems based on six-phase machine with three neutrals","authors":"Reuben P. R. Sousa, C. Jacobina, V. B. Melo, N. B. de Freitas","doi":"10.1109/INDUSCON.2014.7059479","DOIUrl":"https://doi.org/10.1109/INDUSCON.2014.7059479","url":null,"abstract":"This paper presents an AC drive system based on six-phase machine with three neutrals. The machine side converter has nine power legs and can be connected to the grid through one single DC-link or three isolated DC-links. Compared with the conventional back-to-back AC six-phase machine drive system, the proposed drive system permits reducing the DC-link voltages, eliminating step-up transformer, and the voltage at the grid side converter has higher amplitude than that of the machine side, reducing the transmission I2R losses. The system model and PWM strategy are presented and experimental results demonstrate the feasibility of the system.","PeriodicalId":369475,"journal":{"name":"2014 11th IEEE/IAS International Conference on Industry Applications","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131028010","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}
E. M. da S Brito, A. da S Antônio, A. F. Cupertino, H. Pereira
{"title":"Characterization of solar panel using capacitive load","authors":"E. M. da S Brito, A. da S Antônio, A. F. Cupertino, H. Pereira","doi":"10.1109/INDUSCON.2014.7059472","DOIUrl":"https://doi.org/10.1109/INDUSCON.2014.7059472","url":null,"abstract":"This work aims to design and assembly a characterization of solar panel using capacitive load. This device provides information that allows the user to increase the efficiency of power generation in photovoltaic systems. Detection of operation issues or abnormal conditions such as partial shading caused by dirt or objects can affect adversely the maximum power point. Simulation results were used to validate the model and allowed the development of the device. Tests were realized with the prototype in a panel of 48 W. Measured results present accuracy when compared with the simulated results validating the prototype.","PeriodicalId":369475,"journal":{"name":"2014 11th IEEE/IAS International Conference on Industry Applications","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122218307","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}
L. Maccari, Claudio Luiz do Amaral Santini, R. Oliveira, V. Montagner
{"title":"Design and experimental implementation of a robust DLQR for three-phase grid-connected converters","authors":"L. Maccari, Claudio Luiz do Amaral Santini, R. Oliveira, V. Montagner","doi":"10.1109/INDUSCON.2014.7059400","DOIUrl":"https://doi.org/10.1109/INDUSCON.2014.7059400","url":null,"abstract":"This paper deals with the design of robust discrete linear quadratic regulators applied to three-phase inverters connected to the grid by means of LCL filters. The system is modeled in the state space in abc coordinates and changed to aβ coordinates, allowing a simple control design and implementation. Resonant controllers are used to ensure the tracking of sinusoidal references for grid current. The control gains are computed by means of a convex optimization problem and ensure that the closed-loop system is robustly stable when operating under conditions of uncertain grid inductance. The controller is experimentally validated with a 5.4 kW prototype, showing good results for three-phase grid current control.","PeriodicalId":369475,"journal":{"name":"2014 11th IEEE/IAS International Conference on Industry Applications","volume":"188 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114190770","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":"Testing a predictive control with stochastic model in a balls mill grinding circuit","authors":"H. Nieto-Chaupis","doi":"10.1109/INDUSCON.2014.7059397","DOIUrl":"https://doi.org/10.1109/INDUSCON.2014.7059397","url":null,"abstract":"In this paper, the formulation of a stochastic model and its subsequent incorporation into a predictive control of a balls mill grinding circuit, is presented. The apparition of stochastic variables is a consequence of variables interaction by which is impossible to know a well-defined determinist mathematical methodology. Thus, the perceived dynamics is simulated by emphasizing those possible scenarios of alarm situations in where overloading might collapse the system. Under this perception, the system identification is based on probabilities. Once the model is built, it enters in a based-model predictive control by taking into account the hypothesis that the circulant load and water are under interaction each other. Although the quantitative measurement of this interaction might be speculative, it is not discarded that this interaction might be actually the main source of disturbs on the the particle size evolution. The results have shown positive prospects of the proposed methodology as seen in the control system simulations in where the particle size acquires stability. Furthermore the dramatic reduction of alarms events supports the idea that the MPC is still robust even with stochastic formulations.","PeriodicalId":369475,"journal":{"name":"2014 11th IEEE/IAS International Conference on Industry Applications","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121113382","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}
M. H. Granza, H. Voltolini, J. Ivanqui, Pércio L. K. Miranda
{"title":"Wind power generation control system with squirrel cage induction generator","authors":"M. H. Granza, H. Voltolini, J. Ivanqui, Pércio L. K. Miranda","doi":"10.1109/INDUSCON.2014.7059478","DOIUrl":"https://doi.org/10.1109/INDUSCON.2014.7059478","url":null,"abstract":"This paper presents a control system of the wind power generation with squirrel cage induction generator (SGIG). The control system is based on the back-to-back converter between the generator and grid. The vector control of the generator-side and grid-side converter was implemented in Matlab/Simulink/SymPowerSystems. In this work, it is proposed an indirect method, using a model, to obtain the terminal voltages, which reduces the number of required sensors and save overall costs. The simulation results show the effectiveness of this approach.","PeriodicalId":369475,"journal":{"name":"2014 11th IEEE/IAS International Conference on Industry Applications","volume":"80 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113994115","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}