Method for detecting voltage consistency of single fuel cell

The invention discloses a method for detecting the voltage consistency of single fuel cells, and relates to the technical field of fuel cell voltage detection, which comprises the following steps of: respectively setting the type of a fuel cell system and a polarization curve data table of the system, and presetting a time period for reading historical data; the method comprises the following steps: extracting operation voltage and current data under a normal working condition, extracting a single-chip number with the highest/lowest single-chip voltage proportion, screening out actual single-chip voltages corresponding to all single-chip numbers, calculating difference values between the actual single-chip voltages and corresponding factory single-chip voltages, comparing the calculated difference values with a factory single-chip voltage range, counting the distribution condition of the difference values, and calculating the distribution condition of the difference values. According to the difference value r