Results 41 to 50 of about 2,945 (218)
Presence of a transformer in a grid connected photovoltaic system provides galvanic isolation between the photovoltaic panels and the grid. However, it increases the overall cost, makes the circuit bulky and reduces the efficiency of the system.
Aditi Atul Desai +2 more
doaj +1 more source
Design and Analysis for Digital Twin Optimization
ABSTRACT Digital twins (DTs) provide dynamic, virtual representations of physical systems, facilitating real‐time monitoring, prediction, and optimization through the integration of sensor data, computational models, and feedback mechanisms. Despite their potential, deploying DTs in complex systems often entails substantial computational costs.
Xueru Zhang +2 more
wiley +1 more source
Optimized Pulse Width Modulation for transformerless active-NPC inverters
The transformerless DC/AC inverter topologies are employed in Photovoltaic systems in order to improve the power conversion efficiency, power density and cost.
Eftichios Koutroulis +5 more
core +1 more source
This investigation presents the three-phase Transformerless Inverters (TLI) for a solar photovoltaic (PV) system connected to a high power grid will be implement with better performance and lower cost. Many clamping topologies are developed in the single
Suganthi Ramasamy +3 more
core +1 more source
This article proposes a novel electromagnetic rotary negative‐sequence compensator based on dual rotary phase‐shifting transformers to mitigate negative‐sequence currents in single‐phase traction power supply systems. The topology, mathematical model and coordinated speed control strategy are established, with sequence characteristics analysis ...
Xiangwu Yan +5 more
wiley +1 more source
A Hybrid Grid and Photovoltaic Dual‐Input Battery Charger
This paper proposes a dual‐input battery charger (DIBC) with grid power and solar energy. The proposed DIBC consists of a boost‐type power factor correction (PFC) circuit, a high step‐down DC converter (HSDDC), and a buck switch. The grid charges the battery through the boost‐type PFC circuit combined with the HSDDC, while the solar module charges the ...
Jinn‐Chang Wu +3 more
wiley +1 more source
High‐gain DC‐DC converters play a vital role in photovoltaic conversion systems. Achieving high gain often requires operating at extremely high duty cycles, which can lead to increased costs, higher power losses, and reduced system performance. To address these challenges, this study proposes a non‐isolated semi‐quadratic DC‐DC converter, which is ...
Mustafa Okati +2 more
wiley +1 more source
Efficient single phase transformerless inverter for grid-tied PVG system with reactive power control
There has been an increasing interest in transformerless inverter for grid-tied photovoltaic (PV) system due to low cost, high efficiency, light weight, etc.
Islam, Monirul +2 more
core +1 more source
Flying‐inductor‐cell based inverters for single‐phase transformerless PV applications
The application of the general flying‐inductor (FI) cell in two novel transformerless photo‐voltaic (PV) inverters are proposed and investigated.
Mohammad Reza Aalami +4 more
doaj +1 more source
Development of a New Pseudo-DC Link Type DC-Decoupled Transformerless Inverter
This paper proposes a pseudo-DC link type DC-decoupled transformerless inverter. The variation of common mode voltage is the primary reason for the flow of common-mode leakage current in the transformerless inverter.
Sahaya Ponrekha A +2 more
doaj +1 more source

