Analysis of Optimal Oxygen Excess Ratio and Nonlinear Tracking Control of Vehicle PEMFC Air Supply System

Table 1

Variation range of optimal oxygen excess ratio under the condition of stack temperature of 40–.

Load currents	Range of optimal OER	Change of optimal OER
120 A	2.452–2.73	0.278
160 A	2.294–2.589	0.295
200 A	2.161–2.299	0.138
240 A	2.098–2.199	0.101
280 A	1.999–2.067	0.068