Multi-machine parallel connection method and parallel connection structure for modular two-way intelligent power

Abstract

The invention relates to a multi-machine parallel connection method and parallel connection structure for a modular two-way intelligent power. According to the method, modular two-way intelligent power systems are mutually communicated through a parallel communication bus and are mutually connected through a static switch bus; a signal related to output signal states of the modular two-way intelligent power systems is extracted from the parallel communication bus and converted into a reference signal together with a control command sent by an upper computer or a touch screen controller, the reference signal can keep the output signals of the modular two-way intelligent power systems consistent, and is input back to the modular two-way intelligent power systems; a static switch signal synthesizing states of switches of the modular two-way intelligent power systems is extracted from the static switch bus and converted into a static switch control signal to be input back to the modular two-way intelligent power systems, and the static switch control signal controls the output switch states of the modular two-way intelligent power systems.

Description

technical field [0001] The invention relates to the technical field of a bidirectional power supply for an electric vehicle test bench, in particular to a multi-machine parallel connection method and a parallel structure of a modular bidirectional intelligent power supply. Background technique [0002] With the increasing shortage of global petrochemical energy, new energy vehicle technologies represented by electric vehicles (Electrical Vehicle) and hybrid electric vehicles (Hybird Electrical Vehicle) are booming. The number of various types of electric vehicles and hybrid vehicles is not only increasing rapidly, but the development of electric motor test benches has become a top priority. As the energy supply source of the experimental bench, the operational reliability of the bidirectional intelligent power supply has become an important factor for the successful completion of the experiment. [0003] The test bench of the motor will generally do a durability test when d...

AI Technical Summary

Problems solved by technology

(2) In the existing system that adopts modularized bidirectional intelligent power supply system power modules connected in parallel and redundantly, other components in the system cannot achieve redundancy. When other components in the system fail, the entire system may be down to supply power to user loads Outage and inability to perform full outage maintenance operations on the entire system

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