Background: Microgrid is the recent decade terminology that surpasses the long-run issues associated with the public and utility grids. Among the renewable energy sources, solar PV units have gained greater importance owing to their huge potential availability and laidback operating characteristics on technological grounds. Conversely, it offers pollution-free electricity and perhaps the dependability is volatile in most situations. The literature study accumulates the foresaid setback and presents the fluctuation-less and controlled standard quality of power outputs. Objective: The aim of this particular research is to propose an assessment of Power Quality enhancement in a Grid-tied photovoltaic (PV) network via ANN-based UPQC. The novel idea behind this proposed approach is the UPQC component which deliberately regulates and controls the power system to achieve higher levels of power quality, ultimately meeting the recent IEEE standards. Method: This particular research enhances the performances of UPQC employed in the microgrid unit by replacing the traditional PI controller with a multi-layered feed-forward-type ANN controller for the current regulation of the series active filter. Additionally, a training algorithm for the ANN controller is built, trained and simulated via MATLAB/Simulink platform. The ANN-based UPQC is proposed to alleviate the power quality challenges like sag and swell in voltage, harmonic distortion, the time required for voltage compensation, and power factor. Therefore, UPQC is equipped to enrich the standard of power transfer at the point of common coupling inside the power frameworks, respectively. Result: Finally, the simulation results are presented to validate the operation of the grid-tied PV network via an ANN-based UPQC system. To show the enriched performance of the proposed topology, a comparative analysis is made with PI controller-based UPQC, and outcomes infer to be in agreement with the theoretical discussions. Also, the ANN-based proposed approach reduces the restoration time and THD as well under both sag and swell conditions, respectively. Conclusion: In this articulated work, a PV power system network with a DC-DC converter and three-phase inverter is employed for grid integration. The peak power extraction is ensured via a DC-DC converter with an incremental conductance algorithm. Both UPQCs are analysed and experimented via MATLAB/Simulink platform with inconstant nonlinear loads to investigate the indices mentioned above and corroborate the same within the operating regions.

DC microgrids are becoming more reliable by integrating renewable power generators like fuel cells and solar PV systems. Connecting these DC power generators to the direct current (DC) microgrid requires high voltage gain DC-DC converters due to their low voltage limit on the output side. This work proposes a new high gain converter with two switches for DC microgrid applications. Convectional DC-DC converters typically only have one inductor and one capacitor, which results in a low voltage gain because only one inductor charges the capacitor. The suggested converter uses a set of two inductors and two capacitors for a high-voltage gain. In the proposed converter, two inductors are connected in shunt or series for the charging and discharging modes. In this paper, an in-depth examination is provided of the proposed converter’s steady-state analysis for 380V DC micro grid. The MATLAB 2022a Simulink version used to test the proposed system’s functionality.

Solar PV-connected distributed utility grid often faces several issues due to variable penetration of the generated power. It creates frequent disturbance in load side and increases the voltage instability. It is a great challenge to maintain the stability at distributed low-voltage grid and improve the quality of power. In order to overcome this problem, this paper proposes an adaptive voltage and current regulatory approach to improve the power quality in a solar PV-integrated low-voltage utility grid. It supplies auto-adjustable reactive power during the small and large voltage deviations in the grid. The proposed approach assures that the load bus voltage is maintained at 1 p.u. under variable environmental conditions. In addition, the power quality gets improved by injecting the power with improved quality. Three cases of standalone mode, grid-connected modes with and without STATCOM have been investigated and reported in this paper. To validate the proposed adaptive voltage and current regulatory approach, the dynamic results of regulated grid voltage under poor environmental conditions are analyzed and the measured results are presented in this paper. Furthermore, the obtained results are evaluated with the existing approaches such as BAT, firefly and elephant herding optimization (EHO) algorithms and reported in this paper.

The energy storage becomes an essential part to exploit the intermittent form of renewable resources more effectively. Further it is mandate for a battery source to have a built in port for charging and discharging phenomena. A novel idea on multi port non-isolated bidirectional converter (M-NIBC) is proposed and experimented for improved voltage gain and reduced voltage stress in this paper. M-NIBC topology is devised with four electronic switches with a freewheeling diode across each and moreover two inductors and three capacitors certainly make the passive circuitry operation. Energy derived from the regenerative braking is sufficient to charge the battery and it can be done through the feedback control of bidirectional power flow. The voltage is shared in the respective module and thereby the stress across the switch is minimized to an extent. The successive reduction in voltage stress controls the ON state resistance of the semiconductor device eventually. Voltage gain of the proposed M-NIBC is comparatively lower than the conventional cascaded bidirectional converter (CBC) during the charging cycle whereas it is relatively higher in discharging cycle. The proposed M-NIBC is configured in a simpler way to control and this approach is tested in the simulation laboratory for validating its novel performance under the charging and discharging cycles respectively.

This article describes the eminence of power quality improvement in the integrated grid energy system with the solar photovoltaic (SPV) and wind energy (WE) hybridization using unified power quality controller (UPQC). The UPQC comprises of shunt active and series active power converters to enable the control schemes such as discrete 3 phase - phase locked loop (PLL) via a-b-c to d-q transformation and d-q to a-b-c transformation respectively. Subsequently, the system is subjected to the repeated disturbances in AC loads and output power generated from the renewable farm throughout the power transmission. Therefore itis mandatory to overcome the foresaid issues by incorporating a variable reactive power source. Apart from the regular application, UPQC is configured to look up the various concerns in connection to the quality of power such as diluting the harmonic current, voltage imbalance and reactive power compensation, sag and swell phenomena. The control technique for UPQC is implemented through the fuzzy logic controllers. The proposed UPQC also helps in dropping the energylosses that happen in power systems components and also ensures the safety environment. The imposed novel idea is experimented through PSCAD simulation platform and the obtained results certainly justifies the proposed UPQC for trapping the harmonic agents in the distributed renewable energy farms while exposed to non-linear/ susceptible load conditions.

The present scenario in the electrical department is to improve energy proficiency and to investigate innovative compelling and increasingly smart approaches to use power consumption in industrial applications. Electrical machines are a basic requirement for operating various functions in the industry like a crane, blower, material handling systems, pharmaceutical industries and cement industries, etc. The three-phase Induction Motors (IM) is the prime wellspring of vitality employment in industrial applications. The utilization of the Variable Frequency Drives for the industrial application from a small range of induction motor into large capacity of induction motor ranges to improving the effectiveness and efficiency of the process output. The speed and position control is a combined module of the Variable frequency drive section and a Programmable Logic Controller (PLC). So joining the VFD drive with the PLC controller brings out the effective outcome of controller efficiency. The V20 drive having a module of single-phase to three-phase inverter circuit connecting with induction motor to approach of innovation and accessibility of movement control of electric motor with conveyor model, the use of Programmable Logic Controllers with power hardware in electrical machines developed and tested in the assembling hardware setup. In this hardware setup PLC with a VFD system for changing the position and speed more accurately of the drive system with load arrangements. The speed changing is proportionally generated by the PLC controller output signal. The speed control and position control of PLC based V20 drive module developed and tested successfully.

— Electricity is very important facility for the human being. All the convectional energy resource is changing day by day. So it is necessary to shift from convectional to non-convectional energy resources. Although solar and wind energy are two of the most viable renewable sources. Little research has been done on operating both energy sources along the side one another in order to take the advantage of their complementary characters. In this content autonomous photovoltaic and wind hybrid energy systems have been found to be more economically viable alternative to full fill the energy demands of numerous isolated consumers world side. In this article, an optimal design of a hybrid solar-wind energy plant is developed with different ideas of the hybrid system configuration with appropriate exercising of power with respect to source, load and battery. This article also observes and identify the different hybrid renewable system and then identify the uncertainties caused by it and overcome that uncertainties.

A new parallel-connected power flow technique is proposed to improve the input power factor with simultaneously output voltage regulation taking consideration of current harmonic standards. Paralleling of converter modules is used in medium-power applications to achieve the desired output power by using smaller size of high frequency transformers. A parallel- connected interleaved structure offers smaller passive components with less loss in continuous conduction inductor current mode and also reduces the volt-ampere rating of resonant (DC/DC) converter. MATLAB/SIMULINK is used for implementation and simulation results show the performance improvement.