Brief Analysis of DC Power System
The DC power system mainly consists of two parts, a battery cabinet (battery screen) and a DC screen (DC charging screen). Among them, the DC screen is composed of a high-frequency switching power supply module, a control unit, a step-down silicon chain measurement module, a switch quantity module, an insulation detection module, a battery test module, and multiple power distribution units such as AC input, DC voltage display, and power display. The following describes each component in detail. 1. Rectifier module Power rectifier modules are stand-alone modules that convert alternating current to direct current. It is usually rated according to the magnitude of the current. Due to the different instrument concept, it can also be divided into air cooling modules and independent air. Duct Modules, Self-Cooling Modules, Self-Saving Air Cooling Modules, and Self-Saving and Self-Cooling Modules. It can be used in parallel with multiple units for N1 redundancy. The rectifier module