scholarly journals An Effective Control for Lead-Acid Performance Enhancement in a Hybrid Battery-Supercapacitor System Used in Transport Vehicles

2021 ◽  
Vol 13 (24) ◽  
pp. 13971
Author(s):  
Mpho J. Lencwe ◽  
S. P. Daniel Chowdhury ◽  
Thomas O. Olwal
Keyword(s):  
Energy Storage ◽  
Performance Enhancement ◽  
Storage Systems ◽  
Lithium Ion ◽  
Simulation Software ◽  
Effective Control ◽  
Energy Storage Systems ◽  
Battery Lifetime ◽  
Dc Bus ◽  
Lead Acid

Modern vehicles have increased functioning necessities, including more energy/power, storage for recovering decelerating energy, start/stop criteria, etc. However, lead-acid batteries (LABs) possess a shorter lifetime than lithium-ion and supercapacitors energy storage systems. The use of LABs harms the operation of transport vehicles. Therefore, this research paper pursues to improve the operating performance of LABs in association with their lifetime. Integrated LAB and supercapacitor improve the battery lifetime and efficiently provide for transport vehicles’ operational requirements and implementation. The study adopts an active-parallel topology approach to hybridise LAB and supercapacitor. A fully active-parallel topology structure comprises two DC-to-DC conversion systems. LAB and supercapacitor are connected as inputs to these converters to allow effective and easy control of energy and power. A cascaded proportional integrate-derivative (PID) controller regulates the DC-to-DC converters to manage the charge/release of combined energy storage systems. The PID controls energy share between energy storage systems, hence assisting in enhancing LAB lifetime. The study presents two case studies, including the sole battery application using different capacities, and the second, by combining a battery with a supercapacitor of varying capacity sizes. A simulation software tool, Matlab/Simulink, is used to develop the model and validate the results of the system. The simulation outcomes show that the battery alone cannot serve the typical transport vehicle (TV) requirements. The battery and output voltage of the DC-to-DC conversion systems stabilises at 12 V, which ensures consistent DC bus link voltage. The energy storage (battery) state-of-charge (SoC) is reserved in the range of 90% to 96%, thus increasing its lifespan by 8200 cycles. The battery is kept at the desired voltage to supply all connected loads on the DC bus at rated device voltage. The fully active topology model for hybrid LAB and supercapacitor provides a complete degree of control for individual energy sources, thus allowing the energy storage systems to operate as they prefer.

scholarly journals Lithium-Ion Capacitor - Advanced Technology for Rechargeable Energy Storage Systems

2013 ◽  
Vol 6 (3) ◽  
pp. 484-494
Author(s):  
N. Omar ◽  
J. Ronsmans ◽  
Yousef Firozu ◽  
Mohamed Monem ◽  
A. Samba ◽  
...  
Keyword(s):  
Energy Storage ◽  
Storage Systems ◽  
Lithium Ion ◽  
Advanced Technology ◽  
Energy Storage Systems ◽  
Lithium Ion Capacitor

scholarly journals Analysis of Different Energy Storage Technologies for Microgrids Energy Management

2020 ◽  
Vol 173 ◽  
pp. 03004
Author(s):  
Darío Benavides ◽  
Paúl Arévalo ◽  
Luis G. Gonzalez ◽  
José A. Aguado
Keyword(s):  
Energy Storage ◽  
Energy Management ◽  
Storage Systems ◽  
Storage System ◽  
Lithium Ion ◽  
Operating Conditions ◽  
Energy Storage Systems ◽  
Efficiency Performance ◽  
Storage Technologies ◽  
Different Levels

The importance of energy storage systems is increasing in microgrids energy management. In this study, an analysis is carried out for different types of energy storage technologies commonly used in the energy storage systems of a microgrid, such as: lead acid batteries, lithium ion batteries, redox vanadium flux batteries and supercapacitors. In this work, it is analyzed the process of charging and discharging (slow and fast) in these systems, the calculation of energy efficiency, performance and energy supplied under different load levels, in its normal operating conditions and installed power capacity is developed. The results allow us to choose the optimal conditions of charge and discharge at different levels of reference power, analyzing the strengths and weaknesses of the characteristics of each storage system within a microgrid.

Stacked value streams of hybrid energy storage systems in prosumer microgrids

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Azizat Olusola Gbadegesin ◽  
Yanxia Sun ◽  
Nnamdi I. Nwulu
Keyword(s):  
Energy Storage ◽  
Storage Systems ◽  
Lithium Ion ◽  
Payback Period ◽  
Solar Pv ◽  
Energy Storage Systems ◽  
Content Type ◽  
Hybrid Energy ◽  
Hybrid Energy Storage ◽  
Revenue Streams

Purpose Storage systems are deemed to be unable to provide revenue commensurate with the resources invested in them, thus discouraging their incorporation within power networks. In prosumer microgrids, storage systems can provide revenue from reduced grid consumption, energy arbitraging or when serving as back-up power. This study aims to examine stacking these revenue streams with the aim of making storage systems financially viable for inclusion in prosumer microgrids. Design/methodology/approach With the aim of reducing self-consumption and maximising revenue, the prosumer microgrid incorporating hybrid energy storage systems (HESS) and solar PV power is solved using the CPLEX solver of the Advanced Interactive Multidimensional Modeling Software (AIMMS). The financial analysis of the results is carried out to provide the payback periods of different system configurations of the prosumer microgrid. Findings The findings reveal that the payback period of the three HESS when minimising grid expenses during self-consumption alone and when compared with stacked revenue streams shows an improvement from 4.8–11.2 years to 2.4–6.6 years. With stacked HESS revenues, the supercapacitor-lithium ion battery HESS gave the shortest payback period of 2.31 years when solar PV power is at 75% penetration level. Originality/value Existing literature has considered revenue streams of storage systems at the electrical power transmission and distribution levels, but not for prosumer microgrids in particular. This study has captured these benefits and verified the profitability of stacking revenue from HESS to prosumer microgrids, using a case study.

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