Abstract
The following article will analyze the benefits of retrofitting a diesel-electric bus by hybridizing its drive
train with a supercapacitor based energy storage system (ESS). Several power flow management strategies
will be proposed and compared; and their respective ESSs will be sized and designed accordingly. The
energy savings achieved range between 32 % and 40%, due to braking energy recovery and an improved
ICE efficiency, and show the importance of the power flow strategy. Results are obtained by means of a
quasi-static backwards/forward looking simulation program, developed for this purpose, which includes a
dynamic model of the ICE. Performance of the conventional bus and the hybrid bus is also compared.
train with a supercapacitor based energy storage system (ESS). Several power flow management strategies
will be proposed and compared; and their respective ESSs will be sized and designed accordingly. The
energy savings achieved range between 32 % and 40%, due to braking energy recovery and an improved
ICE efficiency, and show the importance of the power flow strategy. Results are obtained by means of a
quasi-static backwards/forward looking simulation program, developed for this purpose, which includes a
dynamic model of the ICE. Performance of the conventional bus and the hybrid bus is also compared.
| Original language | English |
|---|---|
| Number of pages | 12 |
| Journal | World Electric Vehicle Journal |
| Volume | 3 |
| Publication status | Published - Dec 2009 |
Keywords
- Hybrid Electric Vehicle
- Public transport
- supercapacitor
- Simulation
- Energy Storage
- Efficiency