A method for controlling the number of modules in a parallel power supply system based on the golden section of efficiency and current sharing index

Abstract

The invention relates to a parallel power supply system module quantity control system based on efficiency and current sharing performance golden section, on a basis of separately acquiring corresponding optimal points I<ref><1> and I<ref><2> of an expression E=[psi](i) between a current sharing relative deviation mathematical expectation E and power supply module load current i and an expression [eta]=[phi](i) between the efficiency [eta] and the power supply module load current i, the golden section principle in geometry is applied, and module operation comprehensive optimal load current I<ref> is obtained, the method can dynamically adjust the online power supply module quantity in real time, and a parallel power supply system constantly working near the current sharing optimal working points is ensured. According to the invention, the method has characteristics of high reliability, good practicality and the like; the current sharing performance and efficiency index of the parallel power supply system can be effectively considered, the operation economic and reliability of the system is improved, and the method can provide a reliable guarantee for the safe and efficient operation of the parallel power supply system.

Description

technical field [0001] The invention relates to a method for controlling the number of modules of a parallel power supply system based on the golden section of efficiency and current sharing indicators, which is used to optimize and control the number of power supply modules in the parallel power supply system to ensure that the efficiency and comprehensive performance of the parallel power supply system under different load conditions are optimal. This method is also applicable to the requirements of efficiency and current sharing (power sharing) performance indicators for parallel operation of other electronic equipment. Background technique [0002] The high-power parallel power supply is a parallel output structure of multiple power modules. Because of its strong compatibility, N+m redundant backup, strong reliability, high cost performance, low design difficulty, and easy management, it has become a solution One of the preferred solutions for high-power output power sup...

AI Technical Summary

Problems solved by technology

However, there are two problems as follows: 1. The current sharing performance of the parallel power supply system cannot be achieved in a good state; 2. The parallel power supply system cannot achieve high efficiency

[0005] However, by retrieving existing papers and patents, a reliable and practical method for controlling the number of modules in a parallel power supply system has not been found to achieve the optimization of system efficiency and current sharing comprehensive performance indicators

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