Autonomic power supply system based on Diesel generator set and storage of electrical energy from Li-ion battery

2014 ◽  
Author(s):  
Sergey V. Kuchak
Keyword(s):  
Power Supply ◽  
Power Supply System ◽  
Electrical Energy ◽  
Supply System ◽  
Li Ion Battery ◽  
Diesel Generator ◽  
Li Ion ◽  
And Storage

Hybrid System of Proton Exchange Membrane Fuel Cell (PEMFC) with Battery for Portable Power Supply

2018 ◽  
Vol 7 (3.34) ◽  
pp. 542 ◽  
Author(s):  
Prakash Thapa ◽  
Sung Gi Kwon ◽  
Jin Lee ◽  
Gye Choon Park
Keyword(s):  
Fuel Cell ◽  
Hybrid System ◽  
Power Supply ◽  
Power Supply System ◽  
Supply System ◽  
Advanced Technology ◽  
Li Ion Battery ◽  
Battery System ◽  
Li Ion ◽  
Continuous Power

Background/Objectives: The combustion of fossil fuels and increased number of advanced technology leads to the global warming and climate change. So, to reduce the greenhouse gas emission and conserve the energy we need to use green energy like fuel cell and Li-ion battery system. This hybrid system consists of PEM fuel cell stack, Li-ion battery and bidirectional step up converter and can be used stationary as well as mobile equipment like vehicles.Methods/Statistical analysis: For the analysis of hybrid PEMFC/ Li-ion battery power supply system, portable embedded motor is proposed in this paper. The modeling, design, implementation and performance of hybrid system are demonstrate by using experimental results as well as MATLAB/Simulink.Findings: The simulation results shows that hybrid fuel cell-battery system could provide the continuous power to the sudden changing load and protect the devices. The results also shows that, bidirectional controller can successfully control the fuel cell output and maintain the state of charge of battery at a constant level which provides the significant efficiency of the hybrid power supply system and increased the life-cycle of the system more than 35%.Improvements/Applications: To improve the fuel cell system performance we need to provide the favorable conditions of temperature, pressure, humidity and control the flow rate of reactant gausses. Similarly, due to internal resistance, temperature, material used in manufacturing process, charging and discharging strategy reduces the efficiency as well as life of the battery pack. By using proper voltage balancing methodology we can maintain the similar voltage and prevent from irregular charging. 

The Comparative Analysis of the Stratospheric Airship Power Supply System

2014 ◽  
Vol 1008-1009 ◽  
pp. 82-86
Author(s):  
Cui Zhang ◽  
Kai Qiao ◽  
Lei Wu
Keyword(s):  
Fuel Cells ◽  
Energy Conversion ◽  
Power Supply ◽  
Power Supply System ◽  
Energy Conversion Efficiency ◽  
Supply System ◽  
Li Ion Battery ◽  
Stratospheric Airship ◽  
Li Ion ◽  
Solar Batteries

The recycling energy problem is one of the key problems of the Stratospheric Airship. This paper analyzes the “night power supply system” of the Stratospheric Airship combining the energy storage device and its corresponding solar batteries. Compared with the Li-ion battery, Regenerative Fuel Cells have low energy conversion efficiency, resulting that the solar batteries combined with them for “night power supply system” have to be much heavier. Unless the specific energy and energy conversion efficiency of the Regenerative Fuel Cells improve obviously, it will not show much progress compared to Li-ion battery.

scholarly journals An Efficient Hybrid AC Metro Power Supply System Integrating PV With Grid

2019 ◽  
pp. 314-321
Author(s):  
J. Prince Joshua Gladson ◽  
A. Ravielango
Keyword(s):  
Power Supply ◽  
Power Supply System ◽  
Reactive Power ◽  
Control Method ◽  
Electrical Energy ◽  
Supply System ◽  
Urban Rail Transit ◽  
Traction Power Supply System ◽  
Traction Power Supply ◽  
Photovoltaic Plants

Metro is integral to the urban rail transit with the expansion of the city. Due to the tremendous power consuming of the traction load which is generally considered to be megawatt class, the attendant problems concerning energy-saving and emission-reduction cannot be neglected. An approach wherein the photovoltaic plants are connected into the metro traction power supply system to provide electrical energy is proposed in this paper. Given the deterioration of power quality brought about by PV connection, the photovoltaic inverter adopts output reactive power control method.

Using super-capacitor units in the power supply system of re-entry vehicle of a crew transportation spacecraft

2020 ◽  
pp. 84-91
Author(s):  
Egor S. KHAVANOV ◽  
Roman A. BESCHASTNY ◽  
Dmitry A. FATEEV
Keyword(s):  
Power Supply ◽  
Power Supply System ◽  
Lithium Ion ◽  
Supply System ◽  
Soft Landing ◽  
Energy Storage Devices ◽  
Super Capacitor ◽  
Math Model ◽  
Ion Storage ◽  
Li Ion

The paper presents a configuration for the Power Supply System (PSS) of a Re-entry Vehicle (RV) of a Crew Transportation Spacecraft (CTS) based on expendable batteries and autonomous current sources specially designed to support electrical pulsed loads of CTS RV during descent. The paper reviews some special features of such a configuration. It present a CTS RV PSS option which has hybrid energy storage devices based on Li-ion storage battery and Super-Capacitor Units (SCU) packaged in a single housing. It present a CTS RV PSS option which has Li-ion storage batteries to support steady-state onboard loads and patch cables based on super-capacitors to support pulse loads (initiation of pyros of the CTS RV soft landing thrusters). Schematics have been developed for the patch cable with a super-capacitor unit (SCU–patch cable), which were used to refine its electrical parameters to take into account the highest pulsed load requirements for an RV by constructing a math model of the SCU–patch cable in MATLAB/Simulink and running a series of simulations. The paper presents simulation results drawing conclusions about the practicability of using such a device. Key words: reentry vehicle, patch cable, super-capacitor unit, lithium-ion battery, crew transportation spacecraft, math model.

scholarly journals Improving Hybrid Power Supply System for Telecommunication Service Providers in Nigeria

2021 ◽  
Vol 9 (12) ◽  
pp. 1493-1500
Author(s):  
Odudu O. C.
Keyword(s):  
Renewable Energy ◽  
Power Supply ◽  
Power Supply System ◽  
Renewable Energy Sources ◽  
Cost Effective ◽  
Supply System ◽  
Base Stations ◽  
Diesel Generator ◽  
Hybrid Power ◽  
Rivers State

Abstract: The aim of this research is to use a combination of renewable energy sources and conventional diesel generator to model a cost effective, alternative energy source for telecommunication base stations in Nigeria. Actually, this study uses various theoretical and mathematical modelling tools, such as, Mat lab Simulink and HOMER software. In the same way, the study references several Base Transceiver Stations (BTS) from gsm providers at select geographical locations in Rivers State. The study references BTS infrastructure in locations such as Ogoni, Port Harcourt and Emohua. These locations were selected to reflect different climatic conditions in Rivers state. Against this background, various hybrid combinations comprising at least two sources of renewable energy e.g Wind Turbine generator(WTG) and Solar Photovoltaic (SPV) were modelled. Also, Fuzzy logic optimization algorithm was used in tracking the maximum power in the SPV. A sample Diesel Generator(DG) was studied to analyze which possible combination gives optimum performance and is most cost effective. The total cost for installation and maintenance of the hybrid system was also considered. Consequently, one of the common negative effects of conventional power generation and usage, which is environmental pollution, was also highlighted during the study. In the course of this research, Homer was used to model a hybrid system in which the initial capital Cost (ICC) was N101,517,040 for 96 nos battery, 1 no 10kw WTG, 1 no hydro-turbine, 48 nos converters, labour etc. The replacement cost for component has a depreciation of 30%; while maintenance for diesel is 30% of the ICC. Eventually, the results obtained from the simulations showed that with an increase in supply from renewable energy sources the overall cost spent when compared to using a diesel generator only is cut by 50%, while the pollution effects also dropped. In fact, the cost also reduces if the renewable energy system is designed efficiently to track and harness maximum power. Furthermore, it is also evident that the location of the base station site and the availability of Renewable energy source affects the efficiency and cost of the entire system. Hence, it is recommended that any telecommunication company which intends installing a hybrid power system for its base stations must carry out detailed feasibility studies using input parameters described here; especially, as it relates to siting of base stations in rural off-grid areas. Keywords: Hybrid Power Supply System

scholarly journals Development of a Cost-Effective Solar/Diesel Independent Power Plant for a Remote Station

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Okeolu Samuel Omogoye ◽  
Ayoade Benson Ogundare ◽  
Ibrahim Olawale Akanji
Keyword(s):  
Power Supply ◽  
Software Package ◽  
Energy Demand ◽  
Power Supply System ◽  
Cost Effective ◽  
Supply System ◽  
Diesel Generator ◽  
Simulation And Optimization ◽  
Hybrid Power ◽  
Remote Station

The paper discusses the design, simulation, and optimization of a solar/diesel hybrid power supply system for a remote station. The design involves determination of the station total energy demand as well as obtaining the station solar radiation data. This information was used to size the components of the hybrid power supply system (HPSS) and to determine its configuration. Specifically, an appropriate software package, HOMER, was used to determine the number of solar panels, deep-cycle batteries, and rating of the inverter that comprise the solar section of the HPSS. A suitable diesel generator was also selected for the HPSS after careful technical and cost analysis of those available in the market. The designed system was simulated using the HOMER software package and the simulation results were used to carry out the optimization of the system. The final design adequately meets the station energy requirement. Based on a life expectancy of twenty-five years, a cost-benefit analysis of the HPSS was carried out. This analysis shows that the HPSS has a lower cost as compared to a conventional diesel generator power supply, thus recommending the HPSS as a more cost-effective solution for this application.

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