Hybrid Solar Wind-Powered Luo DC-DC Converter with Adaptive Control for Enhanced Efficiency and Reliability

Abstract

This paper aims at discussing the concept, design and setup of a renewable hybrid energy system incorporating Luo converters for photovoltaic (PV) charging system with solar & wind power sources. By engaging an Artificial Neural Network (ANN) for controlling and operating the system most effectively, the power flow control system smartly controls energy conversion and storage fortifying the effectiveness and dependability of renewable energy production. The Luo converter becomes the decisive part, and it could boost or buffer the frequencies of the DC voltage produced from the solar panels and wind turbines to fit the batteries and electronics. Also, the efficiency of the converter is high reducing energy losses, ensuring proper charging and powering operations under different input voltage ranges characteristic of renewable sources. System employs a charge controller which manages the charging currents, commonly used to control the rate of energy charge. Lastly, this hybrid renewable energy system improves both uses of solar and wind power and provides a stable power supply to the grid, making it contribute positively towards the integration of sustainable energy supply. This converter was designed to maximize efficiency with minimal ripples. These objectives would be achieved using an LCL filter. Here, the typical Luo converter circuit arrangement includes two inductors, two capacitors, and two switches. The input voltage is first selected by an inductor and the output current from the second inductor. The two capacitors along with the switches are in combination with the two inductors, thus forming an LCL filter. Now when the first switch is ON, it allows the input voltage feeding into the first inductor. As the result, the current flow increases. After the first switch is OFF and the second switch is ON, then the current passes through the LCL filter; thus, the output capacitor gets charged. Then the energy built up in the succeeding inductor gets transferred to the output capacitor. It raises the output voltage. In Luo converter, its functionality depends on the duty cycle of the switches. The duty cycle may be altered either in an increase or decrease, depending on which will be required for the output voltage in relation to the input voltage. Through the application of LCL filters, the Luo converter achieves higher efficiency and fewer ripple effects regardless of their working in high frequencies of switching. Luo converters are often implemented in applications in power electronics where efficiency needs to be kept high, like electric vehicles, renewable systems, and data centers. The first peak wave in solar structure installation took place during the 1980s and 1990s. Alongside growing environmental concern, government policies encouraged the use of solar power by offering some incentives for production. Many of the countries which led in that area were those like Japan or Germany, introducing feed-in tariffs and even subsiding the installation of solar panels, which proves to be quite cost-effective to individuals and firms. In this era, efficiencies for solar cells increased and installation prices dropped to a surprisingly small amount. The millennium turn was the decisive point of time for the industry of solar energy. After this point of time, the worldwide market was soaring at a rate which, up to the moment, was unknown at least in Europe and North America. Next to that technological progress followed step by step along with improvements of efficiency of thin-film solar cells and CSP amongst others. These technologies brought efficiency improvements besides bringing the total cost of solar energy systems to their lowest levels. The cost of solar panels had decreased by more than 80% in the 2010s, and the cost of solar energy had become one of the cheapest ways to produce electricity.