| 1. |
- Bayona, Jhon F., et al.
(författare)
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A High Efficiency Fluorescent Lamp Electronic Ballast Design
- 2016
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Ingår i: IEEE CACIDI 2016 - IEEE Conference on Computer Sciences. - : Institute of Electrical and Electronics Engineers (IEEE). - 9781509029389
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Konferensbidrag (refereegranskat)abstract
- This paper presents the design and implementation of an electronic ballast for powering a fluorescent lamp. The purpose of this work is to improve the efficiency of the ballast by implementing a Series Resonant Inverter (SRI) in half-bridge configuration instead classic Series-Parallel Resonant (SPRI); in order to allow to provide the voltage steady state of the lamp. By other hand, this DC-AC converter will supply the voltage lamp ignition. Results on the proposed experimental prototype, using a fluorescent lamp of 32W, shows a better efficiency compared to traditional SPRI configurations.
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| 2. |
- Bayona, Jhon F., et al.
(författare)
-
Linear Control of a Power Factor Correction Rectifier in Half-bridge Configuration
- 2016
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Ingår i: IEEE CACIDI 2016 - IEEE CONFERENCE ON COMPUTER SCIENCES. - : IEEE. - 9781509029389
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Konferensbidrag (refereegranskat)abstract
- This paper presents a detailed analysis of a single phase high power factor boost half-bridge rectifier (RPFU-HBB). The purpose of this work is to achieve a unity power factor with tight-regulated output voltage. Using the experimental prototype for 120 Vrms input voltage, output power 80W and output voltage of 450V; a power factor of 0.99 and total harmonic distortion of 2.5% was obtained. In order to eliminate the unbalance voltage of the two output capacitors a special control scheme was developed. Modeling, theoretical linearization around the operating point of the RPFU-HBB, design considerations of the current controller output voltage by means of average current method and experimental work tested through simulation model RPFU-HBB are presented.
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| 3. |
- Chamorro Vera, Harold Rene, et al.
(författare)
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Chapter 19 - Behavioral analysis of Central American power market during pandemics and natural disasters
- 2024
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Ingår i: Energy Efficiency of Modern Power and Energy Systems. - : Elsevier BV. ; , s. 443-470
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Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
- This chapter presents the behavior analysis of the regional electric market (REM) of Central America between 2019 and 2020. Its objective is to assess the impact of the pandemics and natural disasters that occurred in this period on the dealings of the REM. The results were obtained through the statistical analysis of a database the regional operating entity provided. The first part of the study focuses on the injections and withdrawals from the regional transmission network. The second part of the study deals with the foregoing average price in different link nodes and regions throughout the market. In summary, the dealings in the regional electric market fell by 8.2%. The average price fell by 43.9%. Most countries in the market maintained their position as buyers or sellers but in smaller quantities. The contract market became smaller, and the opportunity market grew, both with reference to 2019.
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