High-gain DC-DC converter demand increases rapidly when integrating low voltage renewable energy sources (RES), but the converter’s switch and output diode experience voltage stress equal to the converter output voltage. And to improve the reliability of RES, a hybrid source combination structure is suggested in the literature. To integrate such a hybrid energy source, a single-switch dual-input high-gain capability with reduced voltage-stress (SDHRV) converter is adapted by connecting the parts of two standard boost converter and diode capacitor pair. The SDHRV steady-state converter’s operation is explained by using equivalent circuits and mathematical expressions. In addition to the steady-state performance, a state space average mathematical model is constructed to examine the dynamic performance of SDHRV converter. The advantages of the SDHRV converter are highlighted in the comparison section over other high-gain converters. Finally to validate the SDHRV converter performance simulation results are included.

This survey presents an exhaustive view of the implementation of Active Disturbance Rejection Control (ADRC) across the renewable energy system components. ADRC stands out as a formidable control strategy, adept at navigating uncertainties and perturbations without the necessity for system modeling. This feature makes it particularly suitable for renewable energy systems, which are often subject to highly variable environmental conditions and inherent system nonlinearities. The survey covers the implementation of ADRC in wind energy systems, including turbine control for optimal power capture and grid integration for stable energy output. It also examines its application in solar photovoltaic systems with a particular emphasis on maximum power point extraction and inverter control to enhance efficiency and electricity quality. Furthermore, the use of ADRC in hydropower systems for regulating turbine and generator operations is discussed, highlighting its role in maintaining stable power output amidst fluctuating water flow. Additionally, the survey explores the integration of ADRC in hybrid systems, where it manages power distribution among different sources such as solar, battery storage, and wind to optimize overall performance. The advantages of ADRC, such as its adaptability, real-time disturbance rejection, and simplified implementation, are emphasized across these applications. In conclusion, the survey underscores the effectiveness of ADRC in enhancing the stability, reliability, and efficiency of renewable energy systems, positioning it as a crucial control strategy for advancing sustainable energy solutions.

Decentralizing the electric market and adapting new loads such as electric vehicles and direct current (DC) energized loads have brought many developments in conventional grids. This modernization of utility grids has brought many non-conventional energy sources to satisfy energy demand. The operation of the old and new loads available on the utility grid is facilitated by using non-conventional energy sources. To operate these loads, different power converters are utilized. The popularity of DC loads has brought many DC microgrids, which are accompanied by solar and fuel cell sources. Voltage levels at the output of these non-conventional sources are very low compared to the voltage required to drive the loads. Therefore, DC-DC converters are utilized to boost the voltage at the output of the non-conventional sources. This paper discusses a new DC-DC step-up converter for boosting the output voltage from a non-conventional source. The DC-DC boost converter has a high voltage gain ratio, which gives four times the voltage gain at duty cycle 50%. Initially, the improvised boost converter is studied, and the performance of the converter’s behavior is tested. The converter enables the real-time use of voltage-boosting techniques by reducing the voltage stress across the MOSFET. The prototype of the converter is prepared, performance is verified, and it is found that the converter can provide a high gain voltage at the converter’s output.

Power generation is shifting towards renewable energy sources (RES) to reduce pollution and uncertainties regarding fossil fuels. Direct integrating to the load is not recommended due to the low voltage produced by these RES. A conventional boost converter is employed to connect the RES to the loads. The performance of these systems is subpar due to the converter’s low voltage gain, and they rely on transformers to enhance the voltage on the AC side, resulting in poor efficiency and a large size of the overall system. By enhancing the voltage gain on the DC side, high-gain power converters are employed as a DC-DC converter to solve the aforementioned issue and eliminate the need for additional transformers in the system. Also, to improve the reliability of RES, a dual-input high-gain quasi (DIHGQ) z-source power converter is recommended in this study to integrate RES. The converter’s operation is examined by using the theoretical waveforms and mathematical equations. The suggested converter’s analytical performance is verified using the MATLAB/Simulink platforms. Along with the steady-state performance, a state space average mathematical model is developed to analyze its dynamic performance. The merits of the DIHGQ converter are demonstrated by comparison with traditional high-gain topologies. The comparison demonstrates that the suggested DIHGQ is one of the options for integrating RES.

This article explores cutting-edge power conversion topologies:$2LC_{m}\ -\ Y$converters with diode capacitor stacking (DCS). The proposed topologies$(2LC_{m}-Y-{D}CS$configurations) achieve high voltage gain through the combination of traditional XY family converter topologies$(2LC_{m}-L, 2LC_{m}-2L,2LC_{m}-2LC, \text{and}2LC_{m}-2L{C}_{m}$) with DCS characteristics. The resulting topologies prove advantageous in applications requiring low to high-voltage conversion, making them well-suited for renewable energy systems such as photovoltaic systems, fuel-cell systems, electric vehicles, HVDC systems, and DC drives. What's more, the incorporation of a stack of capacitors stacking enhances the suitability of the proposed topologies for multilevel inverter based utility grids (MLI). The operating theory of the$2LC_{m}-2LC_{m}-DC{S}$configurations is thoroughly explained, accompanied by a comprehensive analysis of the voltage gain of converters. A comparative analysis of the voltage gain for similar topologies is conducted. Finally, simulation results validate the effectiveness of the research work, confirming its viability in practical applications.

This article presents a breakthrough contribution to the field of fuel-cell vehicular systems-an innovative hybrid switched-reactive (HSR) converter designed to improve voltage gain. The proposed configuration and operational principles are thoroughly discussed, accompanied by an analysis of its non-ideal model. A comprehensive comparison with other non-isolated converters reveals the distinct benefits. Notably, the converter achieves improved voltage gain without employing a transformer, coupled-inductor, or voltage multiplier circuit, resulting in reduced stresses on key components. The practicality of the design is validated through the simulation verification of a 500 W converter, affirming its exceptional performance. This research marks a significant step towards advancing energy efficiency in fuel-cell vehicular systems, with far-reaching implications for sustainable transportation.

This paper suggests a loss minimization (LM) for linear induction motors (LIMs) where the optimum value of the primary flux linkage is derived for this goal. The derivation of the optimum primary flux linkage is based on the concept of field-oriented control. Meanwhile, the main control method is finite-set model predictive control (FSMPC) based on the primary flux linkage in the cost function. The presented FSMPC removes the use of a weighting factor with only one proportional control in the output speed control loop. In addition, it reduces the number of calculations where it uses only four voltage vectors in the prediction stage. These four voltage vectors consist of two active voltage vectors and two null voltage vectors. Parameters of a 3-kW arc machine are adopted to confirm the validity of the suggested control method and check the overall performance of the LIM drive system. The obtained results compare the use of four and eight voltage vectors. Besides, it shows the difference between the adoption of the optimum primary flux linkage from LM and the rated value as reference values.

In modern days, to achieve low emission of Green-House Gases (GHG), clean system, easy maintenance, high starting torque, and high efficiency, Internal Combustion (IC) engines are gradually being changed by electric motors. Smart vehicular systems (SV) either functioned from moderately or fully electrical energy generated from renewable sources. The energy storage, i.e., battery or ultra-capacitor system, gains energy from the IC engine. Alternative the electric grid, e.g., IC engines and electric grids are used to charge the battery in Hybrid Smart Electric Vehicle (H-SEV) and Plug-in Smart Electric Vehicle (PSEV), respectively. Power Electronics skills play an imperative role in the energy conversion between Grid-vehicle-Wheel (G-VW) and Wheel-vehicle-Grid (W-V-G). This letter discusses smart vehicular systems with their demand, curiosity, challenges, and power electronic skills.

Electric Vehicles (EVs) have become prominent on our roadways. They are cost-effective, save our precious time and create a pollution-free environment. High efficiency inductive wireless charging systems for electric vehicles (EVs) have proved convenient and user friendly compared to their wired charging counterparts. Wireless EVs (WEVs) are unusual in most countries due to the associated techno-economic problems. Hence, it becomes essential to study in detail about the same before deploying a WEV charging infrastructure. This paper examines the economic aspects of wireless charging systems (WCS) for EVs. The impacts of the COVID-19 and real-estate availability for constructing and commissioning various (WCS) are discussed. Additionally, the cost involved in converters/ inverters, coils, battery for WCS are enumerated.

Multilevel inverters are the best suitable power electronics converters over conventional two/three-level inverters to provide high power quality ac waveforms. However, the quality of the ac power highly depends on the modulation scheme employed by the multilevel inverter. The use of a low-switching frequency modulation scheme is strongly emphasized over a high-switching frequency modulation scheme because of numerous advantages such as lesser power loss, lower switching stress, improved converter efficiency and enhanced converter lifetime. This paper presents a variant of the Nearest Level Modulation scheme, which is based on the geometric nature of variation of MLI switching angles. Hence, the proposed NLM scheme is termed as Geometric-NLM (G-NLM). A seven-level symmetric CCS-MLI topology is taken for the case study, and the proposed modulation scheme is implemented on it. Matlab/Simulink is used to carry out the simulation, and the results are presented. The G-NLM is found to have reduced the voltage THD and improved other MLI parameters compared to the conventional NLM scheme.

In this article, the conventional landsman DC-DC converter is modified to achieve the high inverting voltage conversion ratio for renewable energy applications. A new Switched Reactive Circuitry (SRC) made of one inductor, one capacitor, and two diodes are incorporated to lift the voltage conversion ratio. The characteristics waveform and operation of the proposed converter is discussed in detail. The proposed converter finds the major role in renewable energy integrated application where the high voltage demanded. The proposed landsman converter is compared with existing landsman converter and recently proposed converter in terms of voltage conversion ratio. The proposed configuration has higher voltage conversion ratio compared to conventional landsman converter. The simulation results match with theoretical analysis and validate the feasibility and functionality of the proposed converter.

This paper presents a new multilevel breed of XY converter family, called LY Multilevel Boost Converter (LY-MBC) topologies for renewable energy applications. Four LY-MBC topologies are designed to obtain a high voltage conversion ratio and which also offer an operative solution for renewable energy systems with minimal number of components. Existing LY converter topologies includes L-L, L-2L, L-2LC and L-2LCm converter topologies and LY converter is one of the breed of the XY converter family. The proposed LY-MBC topologies are derived by attaching the Cockcroft Walton (CW) multiplier to the Y converter of LY converter topologies. The proposed LY-MBC converter topologies are compared with existing LY converter topologies in terms of voltage conversion ratio and number of components. The noticeable features of the proposed LY-MBC topologies are also discussed in details. The working operation, feasibility, and design of the proposed LY-MBC topologies are verified by simulations.