TY - GEN
T1 - Experimental validation of an optimal energy management strategy for a hybrid bus with dual storage system
AU - Sierra, Andres
AU - Herrera, Victor
AU - Milo, Aitor
AU - Gaztanaga, Haizea
AU - Camblong, Haritza
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2018/4/3
Y1 - 2018/4/3
N2 - The operational efficiency in a hybrid electric bus(HEB) mainly relies on the suitable design of its energy management strategy (EMS) to operate, in a proper way, the onboard energy sources. This work addresses the experimental validation of an optimized EMS (at simulation level) proposed for an urban HEB. In this case, the EMS handled the proper power split behavior of the vehicle demand among the genset(internal combustion engine connected to an electric generator) and a dual energy storage system (combining Li-ion batteries with supercapacitors). To validate the EMS, a scaled test-bench including the energy sources connected to the electrical DC grid in an HEB was build. This test-bench aims to emulate the real behavior of the genset, battery, supercapacitor, traction demand and auxiliary loads while operating in an urban route profile. The experimental results showed how the real electrical phenomena(DC voltage variations, current balancing, system losses, current ripple, auxiliary and unknown consumptions, etc.) inherent of the power-train devices may affect the energetic performance of the optimal EMS obtained in ideal conditions. Thus, based on the operational dynamics and identified issues, the optimal EMS can be tunned to improve its performance in real operation scenarios.
AB - The operational efficiency in a hybrid electric bus(HEB) mainly relies on the suitable design of its energy management strategy (EMS) to operate, in a proper way, the onboard energy sources. This work addresses the experimental validation of an optimized EMS (at simulation level) proposed for an urban HEB. In this case, the EMS handled the proper power split behavior of the vehicle demand among the genset(internal combustion engine connected to an electric generator) and a dual energy storage system (combining Li-ion batteries with supercapacitors). To validate the EMS, a scaled test-bench including the energy sources connected to the electrical DC grid in an HEB was build. This test-bench aims to emulate the real behavior of the genset, battery, supercapacitor, traction demand and auxiliary loads while operating in an urban route profile. The experimental results showed how the real electrical phenomena(DC voltage variations, current balancing, system losses, current ripple, auxiliary and unknown consumptions, etc.) inherent of the power-train devices may affect the energetic performance of the optimal EMS obtained in ideal conditions. Thus, based on the operational dynamics and identified issues, the optimal EMS can be tunned to improve its performance in real operation scenarios.
KW - dual energy storage system
KW - energy management strategy
KW - experimental validation
KW - hybrid vehicle
KW - Test-bench
UR - http://www.scopus.com/inward/record.url?scp=85048781141&partnerID=8YFLogxK
U2 - 10.1109/VPPC.2017.8331048
DO - 10.1109/VPPC.2017.8331048
M3 - Contribución a la conferencia
AN - SCOPUS:85048781141
T3 - 2017 IEEE Vehicle Power and Propulsion Conference, VPPC 2017 - Proceedings
SP - 1
EP - 6
BT - 2017 IEEE Vehicle Power and Propulsion Conference, VPPC 2017 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 14th IEEE Vehicle Power and Propulsion Conference, VPPC 2017
Y2 - 14 December 2017 through 17 December 2017
ER -
