scholarly journals Optimal Management Energy System and Control Strategies for Isolated Hybrid Solar-Wind-Battery-Diesel Power System

2021 ◽  
Vol 5 (2) ◽  
pp. 111-124
Author(s):  
F. E. Tahiri ◽  
K. Chikh ◽  
M. Khafallah
Keyword(s):  
Power System ◽  
Control Strategies ◽  
Storage System ◽  
Energy System ◽  
Photovoltaic System ◽  
Dynamic State ◽  
Voltage Source ◽  
Diesel Generator ◽  
Hybrid Power System ◽  
Hybrid Power

This paper proposes optimal control strategies of a standalone Hybrid Power System (HPS) to supply sustainable and optimal energy to an isolated site with improved quality of electrical energy. A topology of Isolated Hybrid Power System (IHPS) is proposed, consists of: a Photovoltaic System (PVS), a Wind Energy Conversion System (WECS), electronic power devices controlled to maximize energy production from renewable sources and to maintain the constant DC-link voltage, a Battery Energy Storage System (BESS), Diesel Generator (DG), and a Pulse Width Modulation (PWM) Voltage Source Inverter (VSI) located at the load-side end. In addition, a novel control strategy has been proposed, in this work, to maximize the power from the PVS. This presented strategy, based on the combination between Perturb and Observe (P&O) algorithm and the Fuzzy PI Controller (FPIC), presents a good performance, especially in the dynamic state compared to the classical algorithm P&O. A supervisory control algorithm has been elaborated to manage the energy flows between the devices of the hybrid system to make the decision of the optimal operating mode in order to ensure a continuous supply of the load with minimum usage of batteries and DG. The simulation results developed in the Matlab/Simulink environment are applied to show the efficiency and performance of the proposed control strategies in terms of power optimization and energy management. Doi: 10.28991/esj-2021-01262 Full Text: PDF

Optimal Operational Strategy for PV/Wind-Diesel Hybrid Power Generation System with Energy Storage

2017 ◽  
pp. 1438-1460 ◽  
Author(s):  
Vincent Anayochukwu Ani
Keyword(s):  
Power Generation ◽  
Renewable Energy ◽  
Power System ◽  
Control Algorithm ◽  
Energy System ◽  
Diesel Generator ◽  
Generation System ◽  
Hybrid Power System ◽  
Hybrid Power ◽  
Power Generation System

Telecommunications industry requires efficient, reliable and cost-effective hybrid power system as alternative to the power supplied by diesel generator. This paper proposed an operational control algorithm that will be used to control and supervise the operations of PV/Wind-Diesel hybrid power generation system for GSM base station sites. The control algorithm was developed in such a way that it coordinates when power should be generated by renewable energy (PV panels and Wind turbine) and when it should be generated by diesel generator and is intended to maximize the use of renewable system while limiting the use of diesel generator. Diesel generator is allocated only when the demand cannot be met by the renewable energy sources including battery bank. The developed algorithm was used to study the operations of the hybrid PV/Wind-Diesel energy system. The control simulation shows that the developed algorithm reduces the operational hours of the diesel generator thereby reducing the running cost of the hybrid energy system as well as the pollutant emissions. With the data collected from the site, a detailed economic and environmental analysis was carried out using micro power optimization software homer. The study evaluates savings associated with conversion of the diesel powered system to a PV/Wind-Diesel hybrid power system.

scholarly journals Optimal Sizing and Analysis of a Small Hybrid Power System for Umuokpo Amumara in Eastern Nigeria

2019 ◽  
Vol 2019 ◽  
pp. 1-8
Author(s):  
Cherechi Ndukwe ◽  
Tariq Iqbal ◽  
Xiaodong Liang ◽  
Jahangir Khan
Keyword(s):  
Power System ◽  
Renewable Energy Sources ◽  
Storage System ◽  
Peak Load ◽  
Energy Storage System ◽  
Eastern Region ◽  
Diesel Generator ◽  
Hybrid Power System ◽  
Hybrid Power ◽  
The Village

Umuokpo Amumara is a village with an estimated population of 9,000 people and about 800 households located in the eastern region of Nigeria in West Africa. This village has no access to power grids for over a decade of existence. Umuokpo, by virtue of its location 5°27′35.9″N 7°19′60.0″E, on the average receives about 6 hours of sunlight with a daily average irradiance of 6.12 kWh/m2. The solar energy can be tapped and harnessed to generate quality electricity for this small village. Since the wind speed is low (ranging between 3.0 m/s and 3.5 m/s), the wind resource cannot be incorporated into the design. The average load demand of the village is 9.422 MWh/day with a peak load of 1.3 MW. This paper is aimed at designing a small hybrid power system that can generate sustainable electricity for the village from renewable energy sources. The design also considers a backup diesel generator and an energy storage system. The designed system consists of a 2,750 kW solar photovoltaic (PV), a 21,600 kWh battery storage, a 1,500 kW power electronic converter, and a 1,000 kW diesel generator. The simulation suggests that the proposed system can adequately meet the electricity needs of the village. A sensitivity analysis is also carried out on the system to observe its behavior with varying levels of irradiation and load.

Optimal Operational Strategy for PV/Wind-Diesel Hybrid Power Generation System with Energy Storage

2014 ◽  
Vol 3 (1) ◽  
pp. 101-120 ◽  
Author(s):  
Vincent Anayochukwu Ani
Keyword(s):  
Power Generation ◽  
Renewable Energy ◽  
Power System ◽  
Control Algorithm ◽  
Energy System ◽  
Diesel Generator ◽  
Generation System ◽  
Hybrid Power System ◽  
Hybrid Power ◽  
Power Generation System

Telecommunications industry requires efficient, reliable and cost-effective hybrid power system as alternative to the power supplied by diesel generator. This paper proposed an operational control algorithm that will be used to control and supervise the operations of PV/Wind-Diesel hybrid power generation system for GSM base station sites. The control algorithm was developed in such a way that it coordinates when power should be generated by renewable energy (PV panels and Wind turbine) and when it should be generated by diesel generator and is intended to maximize the use of renewable system while limiting the use of diesel generator. Diesel generator is allocated only when the demand cannot be met by the renewable energy sources including battery bank. The developed algorithm was used to study the operations of the hybrid PV/Wind-Diesel energy system. The control simulation shows that the developed algorithm reduces the operational hours of the diesel generator thereby reducing the running cost of the hybrid energy system as well as the pollutant emissions. With the data collected from the site, a detailed economic and environmental analysis was carried out using micro power optimization software homer. The study evaluates savings associated with conversion of the diesel powered system to a PV/Wind-Diesel hybrid power system.

scholarly journals Energy Conversion System based on Photovoltaic-Battery-Ultra Capacitor-Diesel Sources for a Mobile Hospital

2021 ◽  
Author(s):  
Mohamed Zine Zizoui ◽  
bekheira tabbache ◽  
Muhammad Fahad Zia ◽  
Mohamed Benbouzid
Keyword(s):  
Power System ◽  
Energy Management ◽  
Storage System ◽  
Weather Conditions ◽  
Voltage Regulation ◽  
Diesel Generator ◽  
Hybrid Power System ◽  
Hybrid Power ◽  
Ultra Capacitor ◽  
And Storage

Abstract This article deals with the energy management of a hybrid system composed of PV, Battery,ultracapacitor and diesel synchronous generators for a mobile hospital. The proposed power system can supply energy to Shelter Hospital for better treatment of patients in remote states, particularly in the event of a pandemic situation such as COVID-19. For this reason, a hybrid power system in which a diesel generator is used with a photovoltaic energy source for reliable availability of power supply. Moreover, batteries and ultra-capacitors are also integrated to obtain a hybrid power generation and storage system to ensure the smooth operation of mobile hospital weather conditions. Photovoltaic panels are connected to a boost converter to follow maximum power tracking (MPPT) and Power curtailment modes. The battery is connected to a bidirectional reversible DC-DC converter for DC bus voltage regulation and state of charge (SOC) control. The ultra-capacitor is associated with the battery to compensate for the peak power. The diesel generator is connected in parallel with the photovoltaic generator, battery, and ultra-capacitor to continuously provide the power required by the load. The integrated operation of all the generation and storage systems is complex for shelter hospital. Hence; an efficient energy management algorithm is developed to manage the continuous energy flow between the elements of the hybrid power system and mobile hospital load through the control of the power converters. Finally, validation results are presented to show the effectiveness of the proposed energy management of the hybrid power system.

A hybrid power system using wind and diesel generator: a case study at Masirah Island in Oman

2009 ◽  
Author(s):  
Kejun Qian ◽  
P.S. Solanki ◽  
V.S. Mallela ◽  
M. Allan ◽  
Chengke Zhou
Keyword(s):  
Power System ◽  
Diesel Generator ◽  
Hybrid Power System ◽  
Hybrid Power

scholarly journals Paper Modeling of Wind-Solar Hybrid Power System for Off-Grid in Nepal and a Case Study

2020 ◽  
Vol 15 (3) ◽  
pp. 360-367
Author(s):  
Khagendra Bahadur Thapa ◽  
Arbin Maharjan ◽  
Kishor Kaphle ◽  
Kishor Joshi ◽  
Tara Aryal
Keyword(s):  
Renewable Energy ◽  
Power System ◽  
Hybrid System ◽  
Alternative Energy ◽  
Storage System ◽  
Renewable Energy Resources ◽  
Hybrid Power System ◽  
Hybrid Power ◽  
Efficiency And Effectiveness

The adaptation of renewable energy has been increasing in a very encouraging way all over the world. Among various renewable energy resources, wind and solar energy are the promising sources of alternative energy. Wind and solar photovoltaic (PV) have been employed in parallel as a hybrid system for better electricity service. This paper presents a case study and modeling of wind-solar hybrid system in Hriharpur Gadi village, Sindhuli District, Nepal. The hybrid system yields 110kWh of energy per day meeting the village’s electricity demand of 87 kWh per day. Moreover, the hybrid power system with battery storage system is modeled using MATLAB simulator. Further, improvising in the existing modeling has been presented to enhance the efficiency and effectiveness of the system.

scholarly journals Comparative study of off-grid and grid-connected hybrid power system: issues, future prospects and policy framework

2021 ◽  
Vol 22 (2) ◽  
pp. 752
Author(s):  
Bankole Adebanji ◽  
Oluwaseun Atoki ◽  
Taiwo Fasina ◽  
Oluwumi Adetan ◽  
Adewale Abe
Keyword(s):  
Power System ◽  
Comparative Study ◽  
Urban Areas ◽  
Energy System ◽  
Policy Framework ◽  
Hybrid Power System ◽  
Hybrid Power ◽  
Hybrid Optimization Model ◽  
Sustainable Energy System

A sustainable energy system is of utmost importance for any significant development in any nation.This work identified some obstacles inhibiting rapid renewable energy growth in Nigeria and recommended some policy measures in overcoming them. Moreover, a comparative study of off-grid (OG) and grid-connected (GC) small hydro-solar photovoltaic-diesel hybrid system was carried out using Oyan river, Abeokuta, Nigeria as a case study. The hybrid components were modeled with and without the grid. The hydro solar resources data of the area were collected and analyzed using hybrid optimization model for electric renewable (HOMER) software. The simulation results proved that the GC hybrid power system is better than the OG hybrid power system in technical and economic terms depending on the location. This paper, therefore, proposed the use of OG hybrid power system for electrification of distant villages especially where extending the grid seems infeasible and the use of GC hybrid power system in the urban areas. The work will assist power sector stakeholders in making informed decisions towards the growth of hybrid power system technology in Nigeria.

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