Optimization of hybrid grid-tie wind solar power system for large-scale energy supply in Cameroon

Kitmo,; Tchaya, Guy Bertrand; Djongyang, Noël

doi:10.1007/s40095-022-00548-8

Cited by 8 publications

(3 citation statements)

References 37 publications

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“…From Fig 14 , the grid current and voltage are in phase. In [ 24 , 25 ], it is stated that when the rate of harmonic distortion is high in an electrical system, it is difficult to stabilize the network current and voltage in such a way as to keep them in phase. Since harmonic disturbances create transient fluctuations in voltage and current, they can reach peaks that are detrimental to the operation of receivers and the system as a whole.…”

Section: Resultsmentioning

confidence: 99%

Optimal sizing and power losses reduction of photovoltaic systems using PSO and LCL filters

F. Elnaggar,

Duvalier Péné,

Boussaibo

et al. 2024

PLoS ONE

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The integration of renewable energy systems into electricity grids is a solution for strengthening electricity distribution networks (SEDNs). Renewable energies such as solar photovoltaics are suitable for reinforcing a low-voltage line by offering an electrical energy storage system. However, the integration of photovoltaic systems can lead to problems of harmonic distortion due to the presence of direct current or non-linear feedback in networks from other sources. Therefore, connection standards exist to ensure the quality of the energy before injection at a point of common coupling (PCC). In this work, particle swarm optimization (PSO) is used to control a boost converter and to evaluate the power losses and the harmonic distortion rate. The test on the IEEE 14 bus standard makes it possible to determine the allocation or integration nodes for other sources such as biomass, wind or hydrogen generators, in order to limit the impact of harmonic disturbances (LIHs). The evaluation of the harmonic distortion rate, the power losses as well as the determination of the system size is done using an objective function defined based on the integration and optimization constraints of the system. The proposed model performs better since the grid current and voltage are stabilized in phase after the photovoltaic source is injected.

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Section: Resultsmentioning

confidence: 99%

Optimal sizing and power losses reduction of photovoltaic systems using PSO and LCL filters

F. Elnaggar,

Duvalier Péné,

Boussaibo

et al. 2024

PLoS ONE

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“…In this work, a topology is used to achieve robustness and efficiency, which are evaluated in terms of the total harmonic distortion (THD) rate. Multilevel inverters use filters for harmonic depollution at the common point of coupling (PCC) [13]; thus, the topology proposed in this work gives better performance with a harmonic distortion rate lower than the IEEE 519 standard. The topology of the proposed system also enables a two-way configuration.…”

Section: Review Of Comparative Analysismentioning

confidence: 99%

Intelligent Approach for Control Techniques Based on Complex Converter Structures

Kitmo,

Choudhury,

Khan

et al. 2023

International Journal of Energy Research

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Hybrid frequency control strategies are used to eliminate the problem of current inversion in multilevel cascaded asymmetrical H-bridge inverters. Unfortunately, this technique results in unbalanced power at the inverter output. The improved hybrid PWM modulation strategy helps to regulate power balances within a reasonable range at high and low voltages, by adjusting the conduction angle of the cells in high frequencies. However, as the conduction angle of a high-voltage cell increases, the fundamental amplitude of the inverter output voltage decreases, since waveforms with absolute values greater than 2 E cannot be perfectly modulated. Based on mathematical models of the conduction time for each level synthesis method, a new modulation strategy is proposed to solve the problems associated with the two strategies mentioned above. This new high-frequency modulation strategy adopts a combination of pulse-width modulation (PWM) and step modulation to combine control of the high-voltage and low-voltage units. At given intervals, the control voltage signals of the low-voltage unit are exchanged. Finally, the power of each unit is balanced and the basic amplitude of the inverter output voltage is not affected. Finally, the MATLAB/Simulink simulation model and experimental platform verify the feasibility of this strategy.

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“…DGs offer significant advantages for electric systems located outside urban areas, particularly for networks with low voltage levels and repeated power outages. These sources are increasingly used for active power generation in distribution networks in isolated areas [7]. The installation of DGs is essential for lines with demand exceeding supply [8].…”

Section: Introductionmentioning

confidence: 99%

Optimal Placement and Sizing of Distributed Generations for Power Losses Minimization Using PSO-Based Deep Learning Techniques

Ngoussandou,

Nisso,

Kidmo

et al. 2023

SGRE

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The integration of distributed generations (DGs) into distribution systems (DSs) is increasingly becoming a solution for compensating for isolated local energy systems (ILESs). Additionally, distributed generations are used for self-consumption with excess energy injected into centralized grids (CGs). However, the improper sizing of renewable energy systems (RESs) exposes the entire system to power losses. This work presents an optimization of a system consisting of distributed generations. Firstly, PSO algorithms evaluate the size of the entire system on the IEEE bus 14 test standard. Secondly, the size of the system is allocated using improved Particles Swarm Optimization (IPSO). The convergence speed of the objective function enables a conjecture to be made about the robustness of the proposed system. The power and voltage profile on the IEEE 14-bus standard displays a decrease in power losses and an appropriate response to energy demands (EDs), validating the proposed method.

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Optimization of hybrid grid-tie wind solar power system for large-scale energy supply in Cameroon

Cited by 8 publications

References 37 publications

Optimal sizing and power losses reduction of photovoltaic systems using PSO and LCL filters

Optimal sizing and power losses reduction of photovoltaic systems using PSO and LCL filters

Intelligent Approach for Control Techniques Based on Complex Converter Structures

Optimal Placement and Sizing of Distributed Generations for Power Losses Minimization Using PSO-Based Deep Learning Techniques

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