Circuit model of LED light bulb suitable for typical voltage THD on LV distribution networks

Raciti, A.; Rizzo, Santi Agatino; Susinni, Giovanni

doi:10.1016/j.enbuild.2019.109665

Cited by 9 publications

(5 citation statements)

References 32 publications

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“…The filter is mainly responsible for converting the pulsating DC output by the rectifier into a straight current through the filtering procedure. The filter can filter both DC and DC voltage [ 13 ]. The inverter is the central core of the conversion to convert the linear DC output by the filter into AC power through inversion and directly supplies the load current.…”

Section: Research Theory and Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Application and Optimization of Luenberger Observer Phase-Locked Loop and Inductance-Free Vector Control Method for Aviation Three-Phase Converter in Wearable Equipment

Zeng

Yan

2022

Computational Intelligence and Neuroscience

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This work aims to strengthen the comprehensive performance of the Luenberger observer in the application of aviation three-phase converter and in physical exercise wearable devices to effectively detect human physiological signals. Firstly, the use status and characteristics of three-phase converters are discussed. Then, the Luenberger observer and its optimization process are described. Finally, the Luenberger observer is optimized through phase-locked loop technology and the vector control method. The experimental results indicate that the PLL of the steady-state linear Kalman filter is applicable to the multielectric aircraft converter for the aviation variable frequency power supply. The phase-locked loop of the steady-state linear Kalman filter is complicated, and the output angular frequency is inconsistent with the angular frequency of the actual voltage of the aircraft variable-frequency power supply. Consequently, it does not have the function of frequency locking. On the contrary, the Luenberger observer phase-locked loop designed here is suitable for the multielectric aircraft converter for the aircraft variable-frequency power supply. In addition, it is simpler than the steady-state linear Kalman filter phase-locked loop and realizes the frequency-locking function. In addition, the vector control method significantly improves the control performance of the Luenberger observer. The control error of the original observer is about 0.24°, and the control error of the optimized observer is about 0.18°. This work provides technical support for the performance optimization of the Luenberger observer and contributes to the performance improvement of the aviation three-phase converter.

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Section: Research Theory and Methodsmentioning

confidence: 99%

“…e filter is mainly responsible for converting the pulsating DC output by the rectifier into a straight current through the filtering procedure. e filter can filter both DC and DC voltage [13].…”

Section: 1mentioning

confidence: 99%

Application and Optimization of Luenberger Observer Phase-Locked Loop and Inductance-Free Vector Control Method for Aviation Three-Phase Converter in Wearable Equipment

Zeng

Yan

2022

Computational Intelligence and Neuroscience

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“…Raciti et al recommended a LED light bulb circuit model appropriate for typical voltage THD on LV distribution networks. That model was developed precisely to mimic the current waveform in the case of network voltage variability [16]. In addition, Junior et al imitated residential LED bulbs with E27 sockets sold in Brazil subjected to an experimental study of PQ indicators.…”

Section: Introductionmentioning

confidence: 99%

Unified Power Quality Conditioner Using Recent Optimization Technique: A Case Study in Cairo Airport, Egypt

Mohsen¹,

Ibrahim

Elbarbary

et al. 2023

Sustainability

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This article offers a power quality (PQ) strategy to reduce light intensity flickers, voltage enhancements, and harmonics mitigation of the grid current in extensive networks of LED lighting at Cairo airport, Egypt. A transformerless unified power quality conditioner (TL-UPQC) with its controls is presented to address the majority of PQ issues in a network. The TL-UPQC comprises a dynamic voltage restorer (DVR) as a series compensator, which quickly maintains the load voltage when there is a voltage decrease, surge, or flickering in the network and an active power filter (APF) acts as a shunt compensator that reduces harmonic currents and injects reactive currents. The gain values of the PI controller are obtained using an extended bald eagle search (EBES) optimizer. In addition, a comparative study of three optimizers, namely, moth flame (MFO), cuckoo search (CSA), and salp swarm algorithm (SSA), is presented to test the performance of the PI controller and fast dynamic response. The results showed that the APF nearly obtained unity PF and that the harmonics produced as THD by LED light bulbs for current at the grid were abolished that becomes 3.29%. Additionally, the results verified that TL-UPQC could cancel voltage fluctuations at grid problems so that UPQC’s performance is successfully achieved to provide a flicker-free LED lighting network and this appeared clearly when used in LED lighting network at Cairo airport. MATLAB simulation has been employed to confirm the proposed TL-UPQC’s effectiveness.

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“…The luminaire and the light source made in LED technology are non-linear receivers (NL) generating disturbances in the form of higher current harmonics to the mains. The literature describes a number of models of non-linear receivers, including light sources and LED luminaires [23][24][25][26][27][28][29][30]. These models are used to analyze their impact on the mains, current (including higher harmonics) and power flow.…”

Section: Introductionmentioning

confidence: 99%

Metrology and Measurement Systems

Sikora,

Markiewicz,

Rózga

2021

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Light sources and luminaires made in the LED technology are nowadays widely used in industry and at home. The use of these devices affects the operation of the power grid and energy efficiency. To estimate this impact, it is important to know the electrical parameters of light sources and luminaires, especially with the possibility of dimming. The article presents the results of measurements of electrical parameters as well as luminous flux of dimmable LED luminaires as a function of dimming and RMS supply voltage. On the basis of the performed measurements, a model of LED luminaire was developed for prediction of electrical parameters at set dimming values and RMS values of the supply voltage. The developed model of LED luminaire has 2 inputs and 26 outputs. This model is made based on 26 single models of electrical parameters, whose input signals are supply and control voltages. The linear regression method was used to develop the models. An example of the application of the developed model for the prediction of electrical parameters simulating the operation of an LED luminaire in an environment most similar to real working conditions is also presented.

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Circuit model of LED light bulb suitable for typical voltage THD on LV distribution networks

Cited by 9 publications

References 32 publications

Application and Optimization of Luenberger Observer Phase-Locked Loop and Inductance-Free Vector Control Method for Aviation Three-Phase Converter in Wearable Equipment

Application and Optimization of Luenberger Observer Phase-Locked Loop and Inductance-Free Vector Control Method for Aviation Three-Phase Converter in Wearable Equipment

Unified Power Quality Conditioner Using Recent Optimization Technique: A Case Study in Cairo Airport, Egypt

Metrology and Measurement Systems

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