کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1276293 | 1497554 | 2012 | 9 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Design and control of a PEMFC powered electric wheelchair Design and control of a PEMFC powered electric wheelchair](/preview/png/1276293.png)
This paper proposes the design and control of a fuel-cell powered wheelchair. Electric wheelchairs can improve moving ability for people with walking problems. However, their traveling distances are limited by the capacity of their batteries. We designed a fuel-cell powered electric wheelchair that can be continuously operated, thereby extending the moving range. The system consisted of three subsystems: a commercial electric wheelchair, a proton exchange membrane fuel cell (PEMFC), and two secondary battery sets. The study was carried out in three parts, investigating the fuel-cell control, power management, and system integration. First, we designed multivariable robust controllers for a 500 W PEMFC system to charge the battery sets by constant voltage/current. Second, we designed a serial power management system, where the wheelchair motors were directly driven by the secondary battery sets, which in turn were charged by the PEMFC when their capacities dropped below a certain level. Lastly, we integrated the three subsystems and verified the system performance by experiments. The results confirmed the effectiveness of the PEMFC system as a way to extend the traveling distance of a motorized wheelchair.
► We propose a PEMFC powered wheelchair.
► The system consists of a wheelchair, a PEMFC, and two battery sets.
► We design robust controllers for the PEMFC to provide steady power.
► We construct a serial powertrain to continuously operate the system.
► The field and duration tests verify the effectiveness of the system.
Journal: International Journal of Hydrogen Energy - Volume 37, Issue 15, August 2012, Pages 11299–11307