Application No./Patent No.: 2016105327409 Application date: June 30, 2016.
Inventor/Designer: Peng Zhihui.
The invention relates to a current sharing performance evaluation method of a parallel power supply system based on 2 norm of current sharing deviation expectation matrix. By constructing an expectation matrix of deviation between actual current value and expected current sharing value of a power module of the parallel power supply system under different load conditions (which can cover light load, half load, rated load and overload), the 2 norm of the expectation matrix is calculated, and the current sharing performance is evaluated according to the 2 norm. The physical meaning of this norm value is: it represents the distance between the relative deviation of current sharing and the ideal target (i.e., zero vector) of the parallel power supply system under all load conditions, and provides a basis for the optimization design of parallel power supply. According to the invention, by setting the maximum allowable boundary value sigma, whether the overall deviation performance in the current sharing dynamic response process of the parallel power supply system is qualified or not can be quickly judged.
