Determination of parameters and performance analysis of load models for fluorescent recessed lightings before power supply signal variations

Martínez-Peñaloza, Alejandra; Carrillo-Sandoval, Luisa; Malagón-Carvajal, Gabriel; Duarte-Gualdrón, César; Osma-Pinto, Germán

doi:10.15446/dyna.v87n215.85239

Cited by 2 publications

(3 citation statements)

References 31 publications

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“…Finally, the PV system has three operating conditions according to solar irradiance Ginc (high, medium and low). Only two states of operation, high and low, were considered in the study [16]- [18].…”

Section: A Devices Modellingmentioning

confidence: 99%

Performance analysis of power flow strategies adjusted to a distribution network with non-linear loads and a PV system

Martínez-Peñaloza¹,

Osma-Pinto²,

Ordóñez-Plata³

2024

RE&PQJ

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In analysing power flows, computational strategies and tools are used to study electrical networks considered illconditioned by characteristics such as radial topology, load unbalance, and distributed generation. However, these techniques do not consider harmonic distortion that power electronics devices recently injected into electrical networks. For this reason, this work presents a comparison of the results of three strategies for solving harmonic power flows, where each one of them uses a specific load model in the frequency domain to represent nonlinear loads and a photovoltaic system installed in a distribution network. The traditional Backward/Forward algorithm is adjusted to meet the characteristic conditions of the network. It applies the Norton equivalent coupled admittance matrix model. The other strategies model the electrical network in specialised software; the analysis in Simulink considers the Norton decoupled admittance matrix model, while PowerFactory uses the current source model to represent the loads and the PV system. All three strategies successfully determined the waveforms of the voltage signals; however, the results showed differences for the current signals and power parameters.

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Section: A Devices Modellingmentioning

confidence: 99%

Performance analysis of power flow strategies adjusted to a distribution network with non-linear loads and a PV system

Martínez-Peñaloza¹,

Osma-Pinto²,

Ordóñez-Plata³

2024

RE&PQJ

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“…The PV system is a three-phase component, represented by six admittance matrices for each operating condition. The on/off luminaires and extractors have one operating condition, the dimmable luminaires have two operating conditions according to dimmer level (0 and 10 Vdc), and the PV system has three operating conditions according to solar irradiance (high and low) (23)(24)(25)(26).…”

Section: Modeling the Elementsmentioning

confidence: 99%

“…In terms of the IRMS, there is a significant difference between the values of the two strategies because the coupled model correctly estimates the actual waveform of the current consumed by the load, unlike the decoupled model (23,24,26). This difference is more noticeable in the PV system IRMS injected with differences of 2,7-3,6 A due to the low satisfaction in the estimation of currents by the decoupled model for low solar irradiance (25).…”

Section: Rms Valuesmentioning

confidence: 99%

Performance Analysis of a Backward/Forward Algorithm Adjusted to a Distribution Network with Nonlinear Loads and a Photovoltaic System

Martinez-Peñaloza,

Ordóñez-Plata,

Osma-Pinto

2023

Ing.

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Context: The backward/forward (BF) algorithm is a sweep-type technique that has recently been used as a strategy for the power flow analysis of ill-conditioned networks. The purpose of this study is to evaluate the performance of the BF algorithm compared to that of a computational tool such as Simulink, with both strategies adjusted to the operating conditions of a distribution network with nonlinear components (loads and photovoltaic system), unbalanced loads, and harmonic distortion in the voltage and current signals. Method: The study case is a low-voltage distribution network with a radial topology, unbalanced loads, and nonlinear components. The BF algorithm is adjusted to consider two approaches of the Norton model: a coupled admittance matrix and a decoupled admittance matrix. The latter is also used in the network model created in Simulink. The performance of the algorithm is evaluated by analyzing 18 operation scenarios defined according to the presence and use intensity of the loads and solar irradiance levels (low and high). Results: In general, the three strategies could successfully determine the waveform and RMS values of the voltage signals with errors of less than 0,8 and 1,3%, respectively. However, the performance of the strategies for the estimation of current signals and power parameters shows errors of 5-300% depending on the level of solar irradiance at which the photovoltaic system operates. Conclusions: The results show that the BF strategy can be used to analyze unbalanced power grids with increasing penetration of renewable generation and the integration of nonlinear devices, but the performance of this strategy depends on the load model applied to represent the behavior of nonlinear devices and generation systems.

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Determination of parameters and performance analysis of load models for fluorescent recessed lightings before power supply signal variations

Cited by 2 publications

References 31 publications

Performance analysis of power flow strategies adjusted to a distribution network with non-linear loads and a PV system

Performance analysis of power flow strategies adjusted to a distribution network with non-linear loads and a PV system

Performance Analysis of a Backward/Forward Algorithm Adjusted to a Distribution Network with Nonlinear Loads and a Photovoltaic System

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