Solar-wind Hybrid Energy System Research Articles

Feasible synergy between hybrid solar PV and wind system for energy supply of a green building in Kota (India): A case study using iHOGA

This research article analyses the optimal feasible synergy options of renewable energy sources combined into a hybrid PV panel and wind energy power producing system to deliver green energy for the Renewable Energy Department building at Rajasthan Technical University Kota, India. The configuration of the modeled system is optimized to be estimated with improved hybrid optimization by genetic algorithm (iHOGA). This study generates operational conditions for this hybrid solar-wind energy system which simulates the energy usage process over one year. The optimal synergy configured between solar and wind hybrid systems provides peak-demand energy to the green office building with little surplus energy. The whole year’s production of energy was 6988 kWh and the energy used by the building was 6759 kWh. The energy loss estimated is 276 kWh/year. The CO2 mitigated by using the integrated renewable energy option is evaluated and observed at 5273.14 kg/year. The other pollutants like SO2 and NOx are also being mitigated by 9601.512 kg/year and NOx 32424.32 kg/year respectively.

A comprehensive review of hybrid wind-solar energy systems

Abstract In the face of escalating global energy demands and growing environmental concerns associated with conventional energy sources, integrating renewable energy systems has become imperative. Solar and wind have become key contributors to a cleaner and more sustainable energy future among these renewable energy sources. However, their intermittent nature, unpredictability, and infrastructural demands present significant challenges. Hybrid renewable energy systems (HRES) have emerged as a transformative solution to address these challenges. This paper conducts a comprehensive review of HRES, explicitly focusing on integrating wind and solar energy sources to address the limitations of individual systems. The review encompasses a systematic analysis, commencing with identifying optimal deployment areas for hybrid systems, considering geographic and climatic factors that maximize energy yield. Also, reviewed the in-depth exploration of the pivotal components. Additionally, the paper critically examines the crucial aspect of sizing HRES systems, shedding light on recent methodologies applied to HRES. Furthermore, the paper investigates modern advanced technologies used in HRES, particularly the latest analytical software, its methodologies, and the incorporation of effective designs for hybrid wind and solar systems. In addition to evaluating the current state of HRES technology, this article also discusses the scope of future research prospects and emerging trends in the field. It also contemplates integrating other renewable energy sources, such as biomass, with wind and solar energy according to the availability and advantages of these sources and other associated aspects. This paper will help understand the current developments in the field of HRES.

USE OF RENEWABLE SOLAR-WIND HYBRID ENERGY SOURCES TO MEETLOCAL ELECTRICITY DEMAND: CURRENT STATUS AND PROSPECTS

Renewable energy sources are those which are abundantly available in nature. These are solar, wind, sea, geothermal and biomass and energy generated from these sources are carbon free with less pollution and capable enough to compensate the energy generated from coal and other fossil fuels. Wind and solar energy are becoming popular owing to abundance, availability and ease of harnessing for electrical power generation. It is very common to use these two aforementioned sources to generate electricity independently, i.e. solar power acting alone or wind power alone. Sometimes, though, it is desired that two of these renewable energy resources are combined together to generate electricity and these types of systems are called a Hybrid Power System (HPS). Hybrid power systems therefore, provide increased system efficiency and greater balance in supply of energy. The presentation will be a brief overview of research conducted around the world to design and implement HPS-s that combine wind and solar energy to produce reliable and sustainable electricity for local purposes. Also, information about the research conducting in these directions at the “Novel Alloys Design and Development Lab” (NOVALAB) of Metallurgical and Materials Engineering Department in Middle East Technical University (MetE-METU) and "New Materials and Nanotechnology" Center of Excellence of Azerbaijan Technical University (AzTU) and the details of joint research project proposal within the framework of the Japan-Azerbaijan technical cooperation program in the designing and implementation of solar-wind hybrid energy system at main campus and Techno-park of AzTU in order to supply full electricity demand from green energy sources will be given.

Triple-Level Single-Ended Main Inductor Converter (SeMLC) with regard to Wind-Solar Hybrid Energies

An output from a DC-to-DC converter that can be more or less than its input is called a Single-Ended Main Inductor Converter (SeMLC). Nevertheless, there is more switching stress in this dual-level SEMIC, which raises switching losses. This rise in switching loss causes the power converter's efficiency to drop. This research suggests a Triple stage SeMIC with lower switching losses to get over this drawback. Using a lower rated switch, Triple level SEMIC increases power efficiency. There is a description of a control method that balances the voltage of the capacitor to avoid damaging the power switch. The suggested converter also lessens the ripple in inductor current in the output inductor. Triple level SeMIC uses a hybrid wind-solar energy system as a source. The benefits of the suggested converter are emphasized by discussing the simulation results of both dual- and Triple-level SeMIC.

Review on Generation of Solar Wind Hybrid Energy System

Abstract: In today’s technology driven world electricity is one of the foremost thing for our day to day life activities. As we all are oblivious of the fact that the renewable sources of energy are depleting at a lightning-fast rate. So it’s time for us to shift the focus from conventional to non-conventional sources of energy to produce electricity. The output of the electricity produced by non-conventional sources is less than their counterparts. Renewable sources do not have any detrimental effect on the environment.

Optimizing solar-wind hybrid energy systems for sustainable charging stations and commercial applications: A two-stage framework with ebola-inspired optimization

This paper presents a novel approach to designing and optimizing a Solar-Wind Hybrid Energy System (SWHS) for an Electric Vehicle Charging Station (EVCS) and a university shopping complex in India. Objectives include addressing sustainable energy challenges, ensuring reliability, and minimizing the Levelized Power Supply Price (LPSP). Key contributions encompass a two-stage framework for optimal SWHS configuration, consideration of uncertainties in renewable energy generation, and the use of the Ebola Optimization Search Algorithm (ESOA). The first stage models SWHS components, formulates an objective function, and addresses reliability to minimize LPSP. The second stage employs ESOA, inspired by Ebola spread, exploring both local and global search spaces. Simulation results and a load profile analysis validate the proposed framework and ESOA's performance, observing a significant improvement of 15% in LPSP and a 10% increase in system reliability. The study provides insights into optimal Distributed Generation (DG) sizing in SWHS, ensuring reliable and cost-effective power supply for EVCS and commercial applications, contributing to the renewable energy system design and optimization field. The analysis indicates an enhanced system reliability by 10 % and a notable reduction in LPSP by 15 %.

Study on UPQC Integration Benefits in a Hybrid Solar Wind Energy System

The researchers are focusing on harnessing the electricity form the renewable energy resources by overcoming the challenges faced by them due its variable nature. This study discusses the developing significance of renewable energy sources (RES), in particular wind and solar electricity, in meeting future electricity demands. India’s geographical length is highlighted as beneficial for integrating variable renewable energy outputs into its grid. The paper also addresses Power-quality (PQ) issues springing up from integrating renewable energy sources, proposing solutions including single and Unified active power filter (SUAPF) and distributed Static Compensators (DSTATCOM). The work examines power quality issues associated with grid-related solar PV systems and the combination of Unified Power Quality Conditioners (UPQCs) in hybrid solar-wind systems. The analysis of the UPQC integration with the solar wind energy based hybris system concludes the enhancement in the power quality issues such as total harmonic distortions along with balancing the reactive power in the line.

Hybrid Wind-Solar Energy System for Remote Locations in Northern Alberta

Using renewable energy resources as alternatives to fossil fuel systems is encouraged globally by government and other agencies to achieve greenhouse gas emission reduction targets. Solar and Wind energies are the two widely common renewable energy resources and have reached a mature technological phase for various applications in rural and urban settings. However, these energy resources are prone to intermittency with temporal and seasonal availability. In a cold climate region like northern Alberta, the winter conditions limit solar energy availability significantly. On the other hand, wind energy in the region has consistent availability most of the time. In this work, to develop a standalone all-season sustainable energy system at remote locations, such as rural areas and agricultural applications, a hybrid wind-solar system configuration is modeled, simulated, and analyzed to achieve 200 watts of uninterrupted power in Alberta weather conditions. The results show that wind energy production compliments solar energy production during the wintertime. The hybrid configuration can meet a consistent load demand that is difficult to implement in northern Alberta conditions.

Multiobjective and Simultaneous Two-Problem Allocation of a Hybrid Solar-Wind Energy System Joint with Battery Storage Incorporating Losses and Power Quality Indices

In this paper, a multiobjective and simultaneous two-problem allocation of a hybrid distributed generation (HDG) system comprises of solar panels, wind turbines, and battery storage is proposed in a 33-bus unbalanced distribution network which can decrease total losses and improve power quality (PQ). The PQ indices are defined as voltage swell, total harmonic distortion, voltage sag, and voltage unbalance. In this study, the two problems of hybrid system design and its allocation in the distribution network are solved simultaneously. In the allocation problem, the HDG is placed ideally in the network to reduce energy losses and enhance PQ indices. The HDG is measured to minimize the cost of energy generation, including the initial investment, maintenance, and operation costs. The decision variable including the size of HDG components and its location is optimally determined via escaping bird search (EBS) algorithm which is inspired by the maneuvers of the swift bird to avoid predation. The results cleared that the proposed methodology using the wind and solar resources integrated with battery storage reduced the losses, voltage swell, total harmonic distortion, voltage sag, and voltage unbalance by 34.31%, 49.60%, 0.25%, 40.19%, and 2.18%, respectively, than the base network via the EBS and the results demonstrated the better network performance using all renewable resources against wind or solar application only. The outcomes demonstrated the superiority of the EBS in achieving the highest improvement of the different objectives compared with particle swarm optimization (PSO) and manta ray foraging optimization (MRFO). Moreover, the superior capability of the EBS-based methodology is proved in comparison with previous studies.

Resilience and reliable integration of PV-wind and hydropower based 100% hybrid renewable energy system without any energy storage system for inaccessible area electrification

Achieving sustainable development goals requires off-grid electrification of remote areas using sustainable energy systems (SES). However, capacity planning for SES is challenging due to the long-term need to meet fluctuating demand and the intermittent and unpredictable nature of renewable energy (RE) sources. The best system size for resilience and reliable load servicing of a 100% hybrid renewable energy system has been investigated in this study. The ideal system configuration for a hybrid solar PV, wind, and hydro energy system has been achieved by applying the multi objective genetic algorithm (MOGA) optimization technique to assess optimal size of the renewable energy system. The PV/Wind/Hydro system has the lowest NPC and COE with the best target capabilities among all the communities examined, provided the system lasts 25 years, according to the NPC study. The most ideal configuration (PV 88 kW, wind 18 kW, Hydro1 215 kW, and Hydro2 197 kW) investigated for deployment of hybrid power system at the specified site has NPC, total system cost, and energy cost of $163,238 and $517,141, respectively, and $0.35/kWh. Finally, the implementation of this innovative proposal demonstrated that reliable load serving is possible with 100% renewable energy without the use of an energy storage device.

POWER QUALITY ENHANCEMENT IN A SOLAR-WIND HYBRID ENERGY GENERATION SYSTEM CONNECTED TO A STANDALONE MICRO-GRID

The present paper highlights several concerns with solar-wind hybrid energy systems that are associated with microgrids as well as potential improvements. In recent years, there have been more renewable energy options available. Alternatives to the present energy sources, such as renewable energy, are very good. The utilization of renewable energy sources like solar and wind power as a consistent energy source is widespread. The focus of this study is on microgrid connected solar-wind hybrid energy system performance analysis and control. In this paper, the harmonics of the system are controlled by passive filters. Additionally, several control topologies based on power electronics control are needed for the micro grid’s integration of various energy sources. A power electronics application is used in microgrids that use a variety of renewable energy sources, however some power quality problems frequently arise. The whole microgrid system's voltage management and voltage stability must be maintained, therefore these power quality issues must be fixed or at the very least reduced. An example of a solar-wind hybrid power system simulation using MATLAB is provided in this study. For micro-grid parameter adjustments, PI-PWM control is included into the MATLAB microgrid simulation. The outcomes of the simulation show that the present THD levels in the grid are less than 5%. The energy storage system also serves as a backup power source in this simulation for power variations brought on by irregular solar and wind power generation in the microgrid.

Modelling and Simulation of the Hybrid System PV-Wind

In this paper, we focused on modeling and simulation of a hybrid solar-wind energy system, consisting of a photovoltaic cell and a wind turbine driven by a Permanent Magnet Synchronous Generator (PMSG). The proposed system gives details of the hybrid solar-wind system. In the PV subsystem, there will be a photovoltaic energy subsystem, MPPT controller, and a DC-DC boost converter. The wind turbine subsystem includes a wind turbine energy subsystem, PMSG, and MPPT controller. The MPPT controllers were designed to extract the maximum power regardless of the weather conditions and temperatures. The P and O algorithm is introduced in the MPPT used in the PV energy subsystem and on the control of the machine side converter (MSC). The proposed wind turbine energy subsystem is based on Direct Torque and Flux Control (DTFC). The simulated results are demonstrated to show that the hybrid solar-wind generating system can realize a maximum power point tracking control of wind and solar power to satisfy the energy demand over an extensive range under unpredictable atmospheric conditions. The system has been demonstrated by MATLAB/Simulink and tested for variable weather conditions and temperatures.

Design and Implementation of Embedded Controller-Based Energy Storage and Management System for Remote Telecom

The source of energy extracted in renewable form has turned out to be a primary mainstream energy source, especially in the telecom sectors. Rapid growth of renewable sources has led to telecom operators concentrating more on designing the system with appropriate energy storage elements, providing control facilities, improving system efficiency and verifying uninterrupted power supplies. Therefore, this paper gives a novel approach of utilizing embedded control in energy generation consisting of a solar-wind hybrid energy system placed in isolated areas. For the purpose of integration of wind, together with the solar energy sources, into an increasingly efficient system, a single Cuk-Luo integrated DC-DC converter has been put forward. The proposed system has been modeled using MATLAB/Simulink and verified under various combinations of solar-wind energy sources without compromising the required power. In order to verify the proposed Cuk-Luo integrated converter with the energy management controller system, a prototype hardware is implemented and tested.

Distributed power flow controller based on fuzzy-logic controller for solar-wind energy hybrid system

The demand of electricity globally led to the concept of renewable energy resources for power generation that are eco-friendly and freely available from nature. The solar photovoltaic systems and wind-based power generators are considered as primary renewable resources and are called as Distributed Generation units as they are scattered in nature. These are operated with bidirectional converters by providing auxiliary services at grid side and load side in either mode of microgrid operation. Besides, the DC power generation units’ integration gets converted into AC system by means of inverters. These types of systems not only increase voltage and current harmonics, power frequency deviations but also drive the distribution system to risky operating zone. This emphasizes the stipulation of advanced control schemes for microgrid architecture. Consequently, power electronic converters introduce harmonics in the system and affect the system performance. To report these expanded issues, the authors recognized an advanced custom power device entitled distributed power flow controller. The proposed hybrid solar-wind energy system is first studied with a distributed power-flow controller. Later the system is examined by replacing proportional integral controller with fuzzy logic controller (FLC) for shunt control of distributed power-flow controller. To validate the investigations, MATLAB/Simulink software is used.

Combining green energy technologies to electrify rural community of Wollega, Western Ethiopia

Power shortages are a major problem in rural Ethiopia. Only about 45% of people living in around cities have access to the public power grid. The rest of the inhabitants lives in rural regions with limited access to grid-connected energy. To evaluate the potential of a standalone solar-wind hybrid energy system (HES) for a rural off-grid settlement in western Ethiopia, a feasibility study was performed. The electrical demand of a model household, comprising a school and health facility, was calculated. HOMER Pro is a tool for determining the viability of HES. When the software is executed, optimization results are obtained and sorted according to the lowest net present cost (NPC) and cost of Electricity (COE). The results reveal that the Photovoltaic (PV)/battery/converter combination is the most cost-effective, with the lowest NPC and COE. This setup's NPC is $9150, the COE is $0.173/kWh, and the renewable resource contribution is 100%. The study's findings can be used by interested parties, decision makers and investors to show the benefits of increasing renewable energy, modifying components, and reducing electricity bills.

Off-Grid Wind-Solar Hybrid Energy System for Analaitivu Island in Sri Lanka

The objective of this project is to implement an off-grid wind-solar hybrid energy system with a battery bank system for Analaitivu island in Sri Lanka, which has no connection to the main grid. The hybrid model is developed by analyzing the wind-solar weather pattern of the island to fulfill the energy demand by choosing the ideal combination of solar cells and wind generators. KEYWORDS: Wind-Solar Hybrid Energy System, Battery Bank System, Off-grid Energy System, Analaitivu Island, Northern Province, Sri Lanka.

Energy, exergy, economic, environmental, advanced exergy and exergoeconomic (extended exergy) analysis of hybrid wind-solar power plant

Aiming to net-zero emissions, hybrid power generation through renewable means has gained substantial attention across the globe. Considering the stochastic nature of renewable energy resources, a comprehensive performance assessment is a must prior to project development. Present work is a novel multidimensional 6E analysis (energy, exergy, economic, environmental, advanced exergy, and exergoeconomic) to evaluate the performance of hybrid wind-solar energy systems. The analysis is performed using long-tern (41 years) high-resolution ERA5 reanalysis resource data and the mathematical modeling by means of MATLAB R2018a computation software. The long-term data facilitates reliable and precise predictions of resource availability, power generation, and system performance during the lifespan of the project. The performance of HWSES in terms of capacity factor and exergy efficiency is computed to be 9.6–35.5% and 4.7–10.4% respectively, whereas the extended exergy efficiency lies in the range of 3.39–5.79%. Hybridizing wind power projects with solar power enhances the overall system capacity factor, exergy efficiency, and extended exergy efficiency by 3.46%, 5.12%, and 2.87% respectively. Hence, the hybridization leads to superior year-round system performance with smaller power fluctuations than the standalone systems. Further, wind, solar and hybrid systems would annually reduce the Specific Emission Reduction of 1128 tone/kW, 1685 tone/kW, and 1407tone/kW respectively. The present research will be helpful to the policy-makers and the project developers in the project feasibility study of hybrid energy systems.

Mathematical Modeling and Evaluation of Performance Characteristics of a Hybrid Solar PV and Wind Energy System

Mathematical Modeling and Evaluation of Performance Characteristics of a Hybrid Solar PV and Wind Energy System

Analysis of Hybrid Solar Wind Energy System with Multilevel Inverter Control at the Load End

Integrating all energy supplies to the dc bus requires the use of power electronic devices. The effectiveness of a MLI with two variable generating units has been researched, and the performance has been enhanced through designed regulation. This paper discusses the system was processed to develop a three-phase voltage output, a magnitude of nearly 230 V at the Multi - level inverter side and a smooth waveform at the load side. The framework becomes more dependable after it is integrated with the grid.

Hosting Capacity Assessment in Distribution Networks Considering Wind–Photovoltaic–Load Temporal Characteristics

Under the background of clean and low-carbon energy transformation, renewable distributed generation is connected to the distribution system on a large scale. This study proposes a probabilistic assessment method of hosting capacity considering wind–photovoltaic–load temporal characteristics in distribution networks. First, based on time series of wind, photovoltaic, and load demands, a discretization–aggregation technique is introduced to generate and filter extreme combinations. The method can effectively reduce the scenarios that need to be evaluated. Then a holomorphic embedding method considering generation and load scaling directions is proposed. The holomorphic function of voltage about an embedding variable is established, and it is analytically expanded in the form of series. The hosting capacity restrained by the voltage violation problem is calculated quickly and accurately. Finally, the proposed stochastic framework is implemented to evaluate hosting capacity involving renewable energy types, penetration levels, and locations. The hosting capacity of single energy and hybrid wind–solar renewable energy systems is evaluated from the perspective of probability analysis. The results verify the outstanding performance of the hybrid wind–solar energy system in improving the hosting capacity.