scholarly journals Optimum Controller Design Go Overall Quality Enhancement of System with Hybrid Renewable Energy Sources

2020 ◽  
Vol 6 (4) ◽  
pp. 10
Author(s):  
Harish Khorwal ◽  
Mrs. Madhu Upadhyay
Keyword(s):  
Solar Wind ◽  
Hybrid System ◽  
Reactive Power ◽  
Controller Design ◽  
Renewable Energy Sources ◽  
Energy System ◽  
Fuel System ◽  
Current Waveform ◽  
Power Requirement ◽  
Distortion Level

Grid-tied photovoltaic systems are power-generating systems that are connected with grids. Designing of a grid integrated solar wind hybrid energy system for driving loads for improving its reliability and efficiency. This study of designing an inverter control that attains lower distortion level in the voltage as well as current waveforms. The controller should reduce the spikes at the transient loading point when the system is subjected to sudden load changes. The system is to be integrated with the fuel system also to obtain the energy efficiency. The fuel system would be connected in parallel to the DC voltage output of the solar/wind hybrid system. And Improvement in the reactive power output from the system by the inverter control by designed hybrid system that can compensate the reactive power requirement when required. This project should attain the hybrid solar/wind/fuel system with proposed controller to improve the output parameters. The final hybrid system with fuel cell integration was studied for the total harmonic distortion in the voltage and current waveform. The distortion level in the voltage waveform was found to be 0.39% and that in the current waveform was 1.95%. It is under the IEEE acceptable limits.

scholarly journals Differential Evolutionary and PI Regulated Converter Technology for Loading Analysis in Renewable Energy Systems

2020 ◽  
Vol 6 (11) ◽  
pp. 1-8
Author(s):  
Prakhar Bhadoria ◽  
Divyanshi Yadav
Keyword(s):  
Hybrid System ◽  
Harmonic Distortion ◽  
Fuel System ◽  
Current Waveform ◽  
Remote Communities ◽  
Renewable Energy Systems ◽  
Electrical Grid ◽  
Distortion Level ◽  
Voltage Output ◽  
Sudden Load

Many remote communities around the world cannot be physically or economically connected to an electrical grid. The main objective of the study of designing an inverter control that attains a lower distortion level in the voltage as well as current waveforms by incorporating an optimization algorithm. The controller should reduce the spikes at the transient loading point when the system is subjected to sudden load changes at the power generating units. And the system is to be integrated with the fuel system also to obtain energy efficiency. The fuel system would be connected in parallel to the DC voltage output of the solar/wind hybrid system. The final hybrid system with fuel cell integration was studied for the total harmonic distortion in the voltage and current waveform. The distortion level in the voltage waveform was found to be 0.25% and that in the current waveform was 1.84%. It is under the IEEE acceptable limits.

Operation and control of a stand-alone power system with integrated multiple renewable energy sources

2021 ◽  
pp. 0309524X2110241
Author(s):  
Nindra Sekhar ◽  
Natarajan Kumaresan
Keyword(s):  
Renewable Energy ◽  
Reactive Power ◽  
Renewable Energy Sources ◽  
Energy Sources ◽  
Solar Pv ◽  
Power Requirement ◽  
Squirrel Cage ◽  
Hysteresis Controller ◽  
Squirrel Cage Induction Generator ◽  
And Control

To overcome the difficulties of extending the main power grid to isolated locations, this paper proposes the local installation of a combination of three renewable energy sources, namely, a wind driven DFIG, a solar PV unit, a biogas driven squirrel-cage induction generator (SCIG), and an energy storage battery system. In this configuration one bi-directional SPWM inverter at the rotor side of the DFIG controls the voltage and frequency, to maintain them constant on its stator side, which feeds the load. The PV-battery also supplies the load, through another inverter and a hysteresis controller. Appropriately adding a capacitor bank and a DSTATCOM has also been considered, to share the reactive power requirement of the system. Performance of various modes of operation of this coordinated scheme has been studied through simulation. All the results and relevant waveforms are presented and discussed to validate the successful working of the proposed system.

scholarly journals Study of Grid Connected Wind Energy System with Fuzzy Logic Based MPPT Controller

2018 ◽  
Vol 7 (4) ◽  
pp. 251
Author(s):  
Jayalakshmi N. S ◽  
Sachin S
Keyword(s):  
Fuzzy Logic ◽  
Wind Energy ◽  
Fuzzy Logic Controller ◽  
Reactive Power ◽  
Renewable Energy Sources ◽  
Energy System ◽  
Voltage Regulation ◽  
Control Technique ◽  
Point Tracking ◽  
Wind Energy System

<p>Renewable energy sources (RESs) are gaining more importance due to depleting fossil fuel sources in few decades. When compared to other RESs wind energy system is widely available and user friendly in nature. This paper presents modelling and simulation of grid connected PMSG based wind energy conversion system with P&amp;O maximum power point tracking (MPPT) control technique.  The PQ controller is used for grid tied inverter to exchange real and reactive power with DC bus voltage regulation. The fuzzy logic controller (FLC) is used for MPPT implementation as it provides better performance as compared to the traditional PID controllers. The various case studies are considered for power management between wind system and the utility grid and the results are evaluated in MATLAB/ Simulink platform.</p>

scholarly journals Assessment And Feasibility Analysis Of Off-Grid Solar PV- Pico Hydro Hybrid System

2019 ◽  
Vol 8 (6) ◽  
pp. 2461-2464
Keyword(s):  
Renewable Energy ◽  
Environmental Impact ◽  
Hybrid System ◽  
Renewable Energy Sources ◽  
River System ◽  
Energy System ◽  
Solar Pv ◽  
Pv System ◽  
Technical Data ◽  
Run Of River

As hydropower is one of the commonly available renewable energy sources, so it is experiencing a development in the large part of the world. Pico hydropower is used as a distributed system based renewable energy system meant for rural or remote area load . It is, hence, of most significant to propose an effective methodology to assure the better making reimbursement of a combined Pico hydro system with solar pv system. The proposed method mainly estimates the feasible of installing Pico hydropower in a run-of river. The Methodologies to assess the feasibility and sustainability of such mechanism were depicted. The orderly designing of plant is defined by considering some optimal technological method that considers the dimension of components plus the estimation of the gross energy generation. Economical plus Technical data studies performed to examine the profitability and practicability of the system. This planned method can be examined as a study and the feasibility of developing a PHP in a run of river system is possible. The environmental impact on fixing this plant measured and possibly reduced. This results obtained are demonstrated for already existing infrastructure and analyzed that the cost can be reduced by using an optimized model. A simulation result has obtained the financial expand is more by the technique used for the combine hydro-PV hybrid system. In Addition to the environmental impact and effect an analysis has exposed that yearly more than 200 tons of carbon emission is reduced by producing clean and green liveliness by means of the environmental and ecological solution.

Comparative Energy Cost Analysis of Hybrid System and Diesel Generator in Powering Selected Base Transceiver Stations in Nigeria

2017 ◽  
Author(s):  
Peter Ozaveshe Oviroh ◽  
Tien-Chien Jen ◽  
Nosa Idusuyi ◽  
Olushola Gbadeyan
Keyword(s):  
Hybrid System ◽  
Renewable Energy Sources ◽  
Energy System ◽  
Base Station ◽  
Maintenance Cost ◽  
Diesel Generator ◽  
Hybrid Energy System ◽  
Hybrid Energy ◽  
Prohibitive Cost ◽  
The Cost

The rapid increase in global communication infrastructure in developing countries has drawn significant attention to the telecom sector. However, the dismal performance of the power sector in some countries like Nigeria poses a great challenge to the telecom industry which requires a reliable, efficient and environmentally friendly energy supply. Unstable electric grids, an erratic power supply, non-availability of trained and skilled personnel, and a prohibitive cost of site maintenance cumulatively have increased the need to harness abundant renewable energy sources, such as solar and wind. A comparative study of the viability of solar-diesel hybrid against diesel-only generator systems in powering a base station using the cost of kilowatt hour (kWh) self-generated electricity and levelised cost of energy (LCOE) was undertaken using data from some sites located in the Southwest (SW) and the Northeast (NE) regions of Nigeria. Homer Pro Software was used in data analysis. The results obtained showed that with a hybrid energy system (solar and diesel generator), there were 79% savings in fuel consumption, 83.2% savings in operation and maintenance cost for the hybrid energy system in the SW. The savings on fueling as a result of the use of hybrid systems was 86%, and the carbon footprint reduction was 76%. Furthermore, the cost of operation was reduced by 51% for Northeast. The LCOE for the solar hybrid system was determined to be $1.44 for NE1A and NE1B while that of NE2A was $1.46 and NE2B $1.47.

scholarly journals A case study on solar, wind and hydro energy resource potential of Prizren region in Kosovo

2020 ◽  
Vol 167 ◽  
pp. 03001
Author(s):  
Shiplu Sarker ◽  
Goneta Pecani ◽  
Dejon Vula ◽  
Alemayehu Gebremedhin
Keyword(s):  
Solar Wind ◽  
Renewable Energy ◽  
Energy Demand ◽  
Greenhouse Gas Emission ◽  
Renewable Energy Sources ◽  
Energy Resource ◽  
Life Time ◽  
Energy System ◽  
Energy Potential ◽  
Broad Perspective

Prizren is a city located in the south part of Kosovo with approximately 90,000 inhabitants and land area of 640 km2. The region is covered with distinct geographical features, that favor penetration and deployment of various forms of renewable energy. Particularly, solar, wind and hydro energy potential are considered to be the most available options here. In this study, the potential of these renewable energy sources and their viability for energy production are evaluated using a computational modeling tool. The potential investment opportunities are analyzed based on a 50-year life time project. The results suggest that integrating renewable energy to the existing energy system will enable Prizren region and partly the entire Kosovo for coping with load fluctuations in energy demand. Also, it is expected that the added renewable energy in the existing energy mix will, in a broad perspective, lead to meet the European Union’s target of accelerated renewable energy penetration by the year 2030, and in turn to reduce the greenhouse gas emission to the environment.

scholarly journals Techno-Economic Analysis of a Stand-Alone Hybrid System: Application in Donoussa Island, Greece

Energies ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 1868
Author(s):  
Michail Katsivelakis ◽  
Dimitrios Bargiotas ◽  
Aspassia Daskalopulu ◽  
Ioannis P. Panapakidis ◽  
Lefteri Tsoukalas
Keyword(s):  
Renewable Energy ◽  
Economic Analysis ◽  
Hybrid System ◽  
Renewable Energy Sources ◽  
Energy System ◽  
Hybrid Renewable Energy Systems ◽  
Hybrid Renewable Energy System ◽  
Cost Of Energy ◽  
System Configurations ◽  
Hybrid Renewable Energy

Hybrid Renewable Energy Systems (HRES) are an attractive solution for the supply of electricity in remote areas like islands and communities where grid extension is difficult. Hybrid systems combine renewable energy sources with conventional units and battery storage in order to provide energy in an off-grid or on-grid system. The purpose of this study is to examine the techno-economical feasibility and viability of a hybrid system in Donoussa island, Greece, in different scenarios. A techno-economic analysis was conducted for a hybrid renewable energy system in three scenarios with different percentages of adoption rate (20%, 50% and 100%)and with different system configurations. Using HOMER Pro software the optimal system configuration between the feasible configurations of each scenario was selected, based on lowest Net Present Cost (NPC), minimum Excess Electricity percentage, and Levelized Cost of Energy (LCoE). The results obtained by the simulation could offer some operational references for a practical hybrid system in Donoussa island. The simulation results confirm the application of a hybrid system with 0% of Excess Electricity, reasonable NPC and LCoE and a decent amount of renewable integration.

scholarly journals Sizing and Cost Minimization of Standalone Hybrid WT/PV/Biomass/Pump-Hydro Storage-Based Energy Systems

Energies ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 489
Author(s):  
Fahd A. Alturki ◽  
Emad Mahrous Awwad
Keyword(s):  
Hybrid System ◽  
Cost Minimization ◽  
Renewable Energy Sources ◽  
Optimization Procedure ◽  
Environmental Parameters ◽  
Energy System ◽  
Energy Fraction ◽  
Load Demand ◽  
Whale Optimization ◽  
Storage Energy

In this study, a standalone hybrid wind turbine (WT)/photovoltaic (PV)/biomass/pump-hydro-storage energy system was designed and optimized based on technical, economic, and environmental parameters to provide the load demand with an objective function of minimum cost of energy (COE). The constraints of the proposed approach are the loss of power supply probability, and the excess energy fraction. The proposed approach allows the combination of different sources of energy to provide the best configuration of the hybrid system. Therefore, the proposed system was optimized and compared with a WT/PV/biomass/battery storage-based hybrid energy system. This study proposes three different optimization algorithms for sizing and minimizing the COE, including the whale optimization algorithm (WOA), firefly algorithm (FF) and particle swarm optimization (PSO) and the optimization procedure was executed using MATLAB software. The outcomes of these algorithms are contrasted to select the most effective, and the one providing the minimum COE is chosen based on statistical analysis. The results indicate that the proposed hybrid WT/PV/biomass/pump-hydro storage energy system is environmentally and economically practical. Meanwhile, the outcomes demonstrated the technical feasibility of a pump-hydro energy storage system in expanding the penetration of renewable energy sources compared to other existing systems. The COE of the pumped-hydro storage hybrid system was found to be lower (0.215 $/kWh) than that with batteries storage hybrid system (0.254 $/kWh) which was determined using WOA at the same load demand.

scholarly journals Analysis of a Multilevel Voltage-Based Coordinating Controller for Solar-Wind Energy Generator: A Simulation, Development and Validation Approach

2021 ◽  
Vol 11 (6) ◽  
pp. 7793-7799
Author(s):  
T. Lachumanan ◽  
R. Singh ◽  
M. I. Shapiai ◽  
T. J. S. Anand
Keyword(s):  
Solar Wind ◽  
Renewable Energy ◽  
Wind Energy ◽  
Renewable Energy Sources ◽  
Storage System ◽  
Energy System ◽  
Energy Sources ◽  
Battery Storage ◽  
Development And Validation ◽  
Solar Wind Energy

This paper presents the development and the performance analysis of the developed model of a voltage-based coordinating controller. This model is developed to perform activities such as sensing, measuring, switching, coordinating, and effectively managing the output voltages produced by the solar-wind renewable energy sources in order to supply the connected load or/and charge the battery storage system. The developed model has different tasks to perform when solar-wind energy sources both produce output voltages simultaneously, also contributing to solving the requirements of different synchronization algorithms for a multi-agent renewable energy system. The sensed and measured output voltages of the solar-wind energy sources are used as directive information to allow the developed model’s controller to supply the available power to the connected load or/and charge the battery storage system. Also, the produced information at the model’s controller input is used to individually control the other sub-system, which directly assists in achieving the aim of simultaneous operation when both solar and wind energy sources produce output voltages. The model is developed and simulated in Matlab/Simulink. The simulation results are used to validate the developed methodology and the aims of the developed model.

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