Design of a PV Based Power Supply with a NonInverting Buck-Boost Converter

Ogudo, Kingsley A.; Umenne, Patrice

doi:10.1109/powerafrica.2019.8928656

Cited by 7 publications

(6 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The same setup was used experimentally to form an experimental HESS model. A photovoltaic (PV) system [22] is not modeled in this work; only the load demand-side perspective is analyzed.…”

Section: Discussionmentioning

confidence: 99%

The Impact of the Electric Double-Layer Capacitor (EDLC) in Reducing Stress and Improving Battery Lifespan in a Hybrid Energy Storage System (HESS) System

Tshiani

Umenne

2022

Energies

Self Cite

View full text Add to dashboard Cite

This paper investigates the effect of the electric double layer capacitor (EDLC) in reducing stress and prolonging the battery lifespan in a hybrid energy storage system (HESS). A 65 F, 16.2 V EDLC supercapacitor was connected in a laboratory experiment to produce its charge/discharge profile at a constant current of 5 and 10 A. The EDLC’s Faranda or “two branch model” mathematical parameters were extracted from the experimental charge/discharge profile. The extracted parameters were used as inputs to design the Python/MATLAB/Simulink (PMS)-hybrid model of the EDLC. The charge/discharge profiles of the simulated PMS model of the EDLC were then compared to the charge/discharge profiles derived from the experimental setup of the EDLC and were found to match. The PMS model of the EDLC was then used as a subcomponent in an HESS system modelled in MATLAB/Simulink. Using constant load conditions, the battery’s voltage, current, power and state of charge (SOC) were analyzed for a battery energy storage system (BESS) without a supercapacitor and then compared to an HESS system with a supercapacitor in an experimental setup. This process was repeated with the simulated PMS model of the EDLC in MATLAB/Simulink for HESS and without the EDLC for BESS. Finally using a variable load in an experimental setup, the battery’s voltage and current were analyzed for a BESS system and compared to an HESS system. All these data show that, in an HESS system with a supercapacitor, there is less stress on the battery with a load applied. This is indicated by the voltage and current values in an HESS system being consistently more stable with respect to time as compared to the BESS system. As a result, in an HESS system, the battery will have a longer lifespan.

show abstract

“…The same setup was used experimentally to form an experimental HESS model. A photovoltaic (PV) system [22] is not modeled in this work; only the load demand-side perspective is analyzed.…”

Section: Discussionmentioning

confidence: 99%

The Impact of the Electric Double-Layer Capacitor (EDLC) in Reducing Stress and Improving Battery Lifespan in a Hybrid Energy Storage System (HESS) System

Tshiani

Umenne

2022

Energies

Self Cite

View full text Add to dashboard Cite

show abstract

“…Te solar photovoltaic is connected to the boost converter, and it enhanced voltage from PV output voltage 60 V to 403 V with the help of the MPPT technique. Te boosted output voltage is higher compared to existing converters [22][23][24][25] as shown in Table 5 and Figure 13 shows the comparison of the proposed converter with existing converters. Te output of the implemented 27-level CBH multilevel inverter has fewer switching losses as well as switch count compared with the existing topologies [26][27][28][29][30] as shown in Table 6 and comparison is shown in Figure 14.…”

Section: Comparative Analysismentioning

confidence: 91%

“…Te standing voltage of the inverter is estimated using the following equations: In open-circuit conditions, the switches will block the voltages of blocking voltages of switches [37]; S 1 , S 2 , S 3 and S 4 is V dc , S 5 , S 6 , S 7 and S 8 is 3V dc , S 9 , S 10 , S 11 and S 12 is 9V dc . (22) Blocking voltages across the switches are as follows:…”

Section: Total Standing Voltage (Tsv)mentioning

confidence: 99%

Experimental Implementation of Cascaded H-Bridge Multilevel Inverter with an Improved Reliability for Solar PV Applications

Dhanamjayulu

Girijaprasanna

2023

International Transactions on Electrical Energy Systems

View full text Add to dashboard Cite

This study presents the boost converter-based cascaded H-bridge (CHB) multilevel inverter with improved reliability for solar PV (photovoltaic) applications. The solar PV is associated with the boost converter to enhance DC link voltage by using the maximum power point tracking-perturb and observe (MPPT-P & O) technique. The proposed configuration is aimed toward the performance analysis of the boost converter-based CHB MLI by reducing the number of components, low total harmonic distortion (THD), reduced power, less cost function, low total standing voltage (TSV), improved reliability, and switching losses for solar PV application. In this study, a CHB multilevel inverter is used to obtain stepped pure sinusoidal AC from the solar PV array. The proposed boost converter extracts maximum power and enhances higher DC link voltage which provides high efficiency. The boost converter is integrated with a 27-level CHB multilevel inverter to generate near-sinusoidal output voltage with lower THD. The inverter is tested with linear and nonlinear loads for robustness, and during dynamic loads, inverter is stable and well suited to grid-connected applications. A detailed comparison is presented on the component count and reliability aspects with existing MLIs and 27-level MLIs. The simulation outcomes of the implemented arrangement are presented with the help of MATLAB/Simulink, an experimental prototype is developed using a dSPACE RTI1104 controller and also tested in the research laboratory for checking the possibility of the implemented arrangement.

show abstract

“…They claimed that the charger could work in either buck mode or boost mode in various environmental conditions for PV panels with different batteries. In [25], a system consists of 10 watts PV panel, NIBB converter, DC load, and a battery is designed, and a prototype approved the results. The most important factor in increasing the efficiency of a PV system is designing an MPPT to extracting maximum power from the panel.…”

Section: B Non-inverting Buck-boost Convertermentioning

confidence: 99%

Design and Dynamic Modelling of a Hybrid PV-battery System for a House with an RO Water Desalination Unit in Iran

Mousavi

Iqbal

2021

EJECE

View full text Add to dashboard Cite

Energy crisis and power shortage are major concerns in Iran nowadays, where people experience several blackouts during the day. On the other hand, potable water scarcity is another trend in Iran. In this study, the design and dynamic modelling of a stand-alone hybrid PV-Battery-RO system are discussed for a house in Sinak village, Tehran, Iran. Site characteristics are analyzed in the first part to estimate the house load and deferrable RO load. In the second part, the system has been modelled in HOMER pro software to determine the size of the photovoltaic panels and battery. Moreover, complete electrical details of the system such as system autonomy, unmet load and excess energy have been described. In the third part, dynamic modelling of the small-scale RO unit based on a transfer function is described. The introduced transfer function correctly simulates the system's output flow rate in response to input water pressure variations. Electrical dynamic modelling of the PV- battery system has been designed in MATLAB/Simulink. The results prove that introduced model can simulate the system's behavior in four conditions: normal operating conditions, zero irradiance conditions, maximum irradiance conditions, and net-zero energy conditions. The battery supports the system, and PV arrays power the loads with a fixed and stable voltage and frequency in all the conditions.

show abstract

Design of a PV Based Power Supply with a NonInverting Buck-Boost Converter

Cited by 7 publications

References 12 publications

The Impact of the Electric Double-Layer Capacitor (EDLC) in Reducing Stress and Improving Battery Lifespan in a Hybrid Energy Storage System (HESS) System

The Impact of the Electric Double-Layer Capacitor (EDLC) in Reducing Stress and Improving Battery Lifespan in a Hybrid Energy Storage System (HESS) System

Experimental Implementation of Cascaded H-Bridge Multilevel Inverter with an Improved Reliability for Solar PV Applications

Design and Dynamic Modelling of a Hybrid PV-battery System for a House with an RO Water Desalination Unit in Iran

Contact Info

Product

Resources

About