An Electrolytic Capacitorless Modular Three-Phase AC–DC LED Driver Based on Summing the Light Output of Each Phase

Castro, Ignacio; Vázquez, Aitor; Lamar, Diego G.; Arias, Manuel; Hernando, M.M.; Sebastián, J.

doi:10.1109/jestpe.2018.2868950

Cited by 17 publications

(9 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…20. Multi-cell ac-dc LED driver based on summing the light output of each phase [233], [234]. However, the simplicity and cost efficiency of passive ac-dc LED drivers makes them overall a more attractive solution for LED lamps.…”

Section: Discussionmentioning

confidence: 99%

A Review on Flicker-Free AC–DC LED Drivers for Single-Phase and Three-Phase AC Power Grids

Castro

Vázquez

Arias

et al. 2019

IEEE Trans. Power Electron.

Self Cite

View full text Add to dashboard Cite

Light-Emitting Diodes (LEDs) are coming strongly into the lighting market due to their advantages over conventional lighting solutions: energy efficient, controllable in both light and color, long lifetime, lack of a warm-up period and high power density. Some of these advantages will make LED light sources to be more than just a lightbulb, being able to transmit data, control light color, hue and intensity or even detect people in indoor environments. Nevertheless, these advantages attributed to LED capabilities are, in reality, achieved thanks to the LED driver. The present work reviews the current stateof-the-art strategies to drive LEDs from ac power grids with special emphasis into removing the most limiting component from the point of view of the lifetime, which is the electrolytic capacitor, while achieving a flicker-free performance of the light output of the LED driver. Moreover, it focuses on analyzing the required regulations, challenges and applicability of LED drivers in both single-phase and three-phase ac power grids.Note: This only applies for certified dimmable luminaires. Audible noiseLuminaire shall not emit noise above 24 dBA at 1 meter or less at the minimum output.0885-8993 (c)

show abstract

Section: Discussionmentioning

confidence: 99%

A Review on Flicker-Free AC–DC LED Drivers for Single-Phase and Three-Phase AC Power Grids

Castro

Vázquez

Arias

et al. 2019

IEEE Trans. Power Electron.

Self Cite

View full text Add to dashboard Cite

show abstract

“…The buck constant current drive circuit is separated into Passive Power Factor Correction (PPFC) and Active Power Factor Correction (APFC) according to the different Power Factor Correction (PFC) circuits. Currently, the most common LED drive circuits mainly include resistance-capacitance buck drive circuit and buck constant current drive circuit [5], [31].…”

Section: A Led Lamps Driver Circuitmentioning

confidence: 99%

Harmonic Characteristics Data-Driven THD Prediction Method for LEDs Using MEA-GRNN and Improved-AdaBoost Algorithm

2021

View full text Add to dashboard Cite

Light-emitting Diode (LED) lamps have been widely used due to versatility and energy efficiency. However, LEDs are nonlinear loads, the massive usage will inject harmonics into the lighting system, which has influenced the power quality. Total Harmonic Distortion (THD) is an important parameter to evaluate the power quality, but the prediction of THD for LEDs is a challenging task. This paper addresses this issue by designing harmonic characteristics detection experiment and using artificial intelligence algorithm. Firstly, LED lamps with different driving circuits were tested, the relevant data of each harmonic were sampled and analyzed. Then, a THD prediction method based on an improved AdaBoost algorithm is proposed. In this method, a Generalized Regression Neural Network (GRNN) model is established, and its parameters are optimized by Mind Evolution Algorithm (MEA) to improve the search ability of GRNN. On this basis, the AdaBoost algorithm is utilized to integrate multiple MEA-GRNN individuals to form a strong predictor, which improves the generalization ability of the model. To avoid the integration failure caused by improper selection of threshold value, a sigmoid adaptive factor is added to improve the accuracy of AdaBoost algorithm. Finally, the Ada-MEA-GRNN model is trained and simulated with the LED harmonic data collected by the experiment. The simulation results show that the prediction accuracy of the proposed method is better than BP and GRNN, which can reach 95.48%. Meanwhile, even if the input dimension is reduced, the error is still small. INDEX TERMS LED lamps, THD prediction, ensemble learning, mind evolution algorithm (MEA), generalized regression neural network (GRNN).

show abstract

“…Fig. 10: Driver multicelular baseado no somatório das saídas de luz (Castro et al, 2018(Castro et al, , 2019b Apresentadas as topologias, a Tabela 1 compara os drivers trifásicos revisados. Algumas considerações devem ser levadas em conta para analisar a Tabela 1:…”

Section: Estágios Modularesunclassified

Acionamento de Arranjos de LEDs de Altíssimas Potências Empregando Drivers Conectados à Rede Trifásica

Rangel

Silva

Almeida

2020

Anais Do Congresso Brasileiro De Automática 2020

View full text Add to dashboard Cite

Os LEDs têm se mostrado cada vez mais presentes nos sistemas de iluminação, desde sistemas de pequeno e médio porte (como residencial e iluminação pública), até mesmo em sistemas maiores (holofotes de estádios, por exemplo). Ao funcionarem em corrente contínua, torna-se necessário a presença de drivers fazendo a interface entre a rede e os mesmos. Esses sistemas de acionamento precisam garantir cada vez mais eficiência, confiabilidade e compatibilidade com normas regulamentadoras. Será apresentado uma série de topologias de drivers trifásicos, acreditando-se que os mesmos são mais interessantes para sistemas de altíssima potência, sobretudo por possibilitarem a remoção do capacitor eletrolítico e consequentemente o aumento da vida útil do sistema como um todo. Duas categorias serão tratadas neste trabalho, a saber: estágio único e modular, as quais possibilitam o estudo de várias topologias já existentes no âmbito de acionamento de LEDs. Serão apresentados os resultados mais relevantes de cada topologia e, por fim, é feita uma comparação minuciosa.

show abstract

An Electrolytic Capacitorless Modular Three-Phase AC–DC LED Driver Based on Summing the Light Output of Each Phase

Cited by 17 publications

References 33 publications

A Review on Flicker-Free AC–DC LED Drivers for Single-Phase and Three-Phase AC Power Grids

A Review on Flicker-Free AC–DC LED Drivers for Single-Phase and Three-Phase AC Power Grids

Harmonic Characteristics Data-Driven THD Prediction Method for LEDs Using MEA-GRNN and Improved-AdaBoost Algorithm

Acionamento de Arranjos de LEDs de Altíssimas Potências Empregando Drivers Conectados à Rede Trifásica

Contact Info

Product

Resources

About