Development and implementation of two-stage boost converter for single-phase inverter without transformer for PV systems

Elnaghi, Basem E.; Dessouki, M. El-Shahat; Abd-Alwahab, M. N.; El-Kholy, E. E.

doi:10.11591/ijece.v10i1.pp660-669

Cited by 12 publications

(9 citation statements)

References 24 publications

(29 reference statements)

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“…Figure 2 shows a graphical representation of the possible output voltage levels corresponding to the case of the capacitors' voltages described in (5). Each stage adds, subtracts, or isolates its capacitor voltage to the voltage of the preceding stages; this is represented by the raising, declining, and horizontal arrows respectively.…”

Section: Voltage Composition Diagrammentioning

confidence: 99%

Maximum resolution of switched capacitor converter: a graphical approach

Natheer

Kadir

2022

IJPEDS

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The efficiency of a switched capacitor converter can be represented as the ratio of the output voltage to open-circuit voltage. Switched capacitor converters with adjustable gain are designed with multiple no-load voltages to obtain higher efficiency over the voltage control range. This paper aims to realize the maximum resolution of a switched capacitor converter. A graphical representation of the output voltages formation has been proposed. The voltage composition diagram reveals a switching pattern of the multiphase operation cycle that leads to the desired output voltage. The proposed method has been applied to determine all possible output voltage levels that lead to maximum resolution. A three-capacitor converter has been controlled with the proposed scheme. The simulation results show that the output voltage follows the reference voltage closely. The converter provides 60% more output voltage steps compared to the nearest comparable design in the literature.

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Section: Voltage Composition Diagrammentioning

confidence: 99%

Maximum resolution of switched capacitor converter: a graphical approach

Natheer

Kadir

2022

IJPEDS

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“…On the off chance that the size regarding U is more remarkable than (or grows to) b, State (1) implies appropriation to figure a suitable width w for apportioning U. In the event when the estimation of w is equal to zero, U is assigned as non-disseminated (Stages [15][16][17][18][19][20]. This occurs when the items in U have similarities regarding the separation work, and in this manner, they can't be apportioned.…”

Section: Non-functional Evaluationmentioning

confidence: 99%

“…Lausen and Haselwanter [11] executed the calculation about how to solidify undeniable quality of service (QoS) estimations to get a sense as a rule rating for a web service. The proposed reputation can be portrayed as the standard given to the organization by the end client [18]- [20].…”

Section: Introductionmentioning

confidence: 99%

An effective method for clustering-based web service recommendation

Cuong

Khiet

Nguyen

et al. 2022

IJECE

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Normally web services are classified by the quality of services; however, the term quality is not absolute and defined relatively. The quality of web services is measured or derived using various parameters like reliability, scalability, flexibility, and availability. The limitation of the methods employing these parameters is that sometimes they are producing similar web services in recommendation lists. To address this research problem, the novel improved clustering-based web service recommendation method is proposed in this paper. This approach is mainly dealing with producing diversity in the results of web service recommendations. In this method, functional interest, quality of service (QoS) preference, and diversity features are combined to produce a unique recommendation list of web services to end-users. To produce the unique recommendation results, we propose a varied web service classification order that is clustering-based on web services’ functional relevance such as non-useful pertinence, recorded client intrigue importance, and potential client intrigue significance. Additionally, to further improve the performance of this approach, we designed web service graph construction, an algorithm of various widths clustering. This approach serves to enhance the exceptional quality, that is, the accuracy of web service recommendation outcomes. The performance of this method was implemented and evaluated against existing systems for precision, and f-score performance metrics, using the research datasets.

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“…The designed ANN includes three hidden layers in addition to one input layer and one output layer as shown in Figure 4. Pulse Width Modulation (PWM) pulses generator generates the drive pulses to the involved boost DC-DC converter [20][21][22][23][24][25]. The second group of blocks in the proposed system involves the power electronics device which is the boost DC-DC converter, in addition to the electrical resistive load.…”

Section: Design Of the Presented Annbased Pf Correctormentioning

confidence: 99%

Artificial neural network based unity power factor corrector for single phase DC-DC converters

Attia

2020

IJECE

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Due to the negative effects of the non-linear semiconductor devices and the passive electrical components (inductor and capacitor) in the converter circuits, and that are deteriorating the power factor (PF) and total harmonics distortion (THD) of grid current, this study proposes a novel unity PF correction controller based on a new algorithm of neural network to improve the performance of a single phase boost DC-DC converter with respect to the mentioned concerns. The controller guarantees stable load voltage. The PF corrector, firstly measures the phase shift between grid voltage and grid current waveforms, then through a new artificial neural network (ANN) algorithm, a suitable duty cycle is predicted to guide and control the converter to reduce the phase shift between grid voltage and grid current as possible to have maximum PF which is unity PF, and to improve the THD level of grid current. The proposed system is simulated and evaluated via Simulink of MATLAB, the simulation results are collected at constant duty cycle and at controlled duty cycle through the proposed PF controller using different loads. The presented PF controller guarantees the unity power factor, and enhances the grid alternating current THD.

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Development and implementation of two-stage boost converter for single-phase inverter without transformer for PV systems

Cited by 12 publications

References 24 publications

Maximum resolution of switched capacitor converter: a graphical approach

Maximum resolution of switched capacitor converter: a graphical approach

An effective method for clustering-based web service recommendation

Artificial neural network based unity power factor corrector for single phase DC-DC converters

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