Research on Energy Management Method of Fuel Cell Hybrid Power System Based on Improved Equivalent Hydrogen Consumption
Journal Title: Urban Mass Transit - Year 2024, Vol 27, Issue 5
Abstract
Objective Equivalent hydrogen consumption, as a method for optimizing fuel economy, performs poorly in following the state of charge of energy storage systems. Therefore, it is necessary to improve it to achieve dynamic balance of interval state of charge. Method Based on the conventional equivalent hydrogen consumption algorithm, the hydrogen consumption function of the system is optimized. By adding a voltage balance coefficient, it ensures that the supercapacitor will not be overcharged or over-discharged during vehicle operation. Then, through minimization solution, real-time allocation of power to the system is achieved. Result & Conclusion Based on the operational data of virtual-rail trams, the proposed method is validated on a semi-physical simulation platform. Experimental results show that the improved equivalent hydrogen consumption algorithm can achieve energy distribution of hybrid power systems under complex working conditions. The added voltage balance coefficient ensures that the voltage of the supercapacitor at the end of the vehicle interval remains within a reasonable range.
Authors and Affiliations
Zhi CHEN, Rujun LIANG, Fang QI, Yu YAN
Keywords
Related Articles
- EP ID EP735608
- DOI 10.16037/j.1007-869x.2024.05.005
- Views 45
- Downloads 0
Multi-objective Optimization Model of Track Utilization for Depot-returning Urban Rail Transit Trains with Shunting Operation Constraints
［Objective］ To improve the impact of shunting operations on the track utilization for the depot-returning urban rail transit trains and enhance the train maintenance efficiency, it is necessary to optimize the track ut...
Research on the Integrated Modes of Rail Transit Dispatching Command for Metropolitan Area
［Objective］ Researches on the integrated dispatching and command modes for metropolitan area rail transit conduce to address problems in operational management coordination and linkage among different levels of rail tr...
Causes and Countermeasures of Train Emergency Braking Failures under DRB Turn-back Mode on Xi’an Metro Line 14
Objective Under the DRB (driverless return button) mode on Xi’an Metro Line 14, the train emergency braking will occur after the train automatically switching its head car on the turn-back line, resulting in the train tu...
Research and Application of Crack-resistance Technology for Underground Station Side-wall Concrete Structure
[Objective] Cracking in the concrete of urban rail transit project underground station side-walls can pose a threat to the structural safety of metro stations. It is essential to analyze the causes of cracking in the con...
Research on Intelligent Classification of Service Hotline Work Orders Based on Semantic Recognition
[Objective] Traditional rail transit network service hotline mainly relies on manual customer service answering calls, manually filling out work orders and handling classifications. Passenger service staff undertake high...