Power supply access apparatus

Abstract

The invention provides a power supply access apparatus. The power supply access apparatus is used for accessing one or more power generation units and energy storage units. The power supply access apparatus comprises a rectifier, a direct current converter, an unloader and an inverter, wherein the rectifier is used for performing input rectification on the power generation units; the direct current converter is used for performing voltage boosting; the unloader is used for releasing the redundant energy; the inverter is used for converting the direct current into alternating current; and the power supply access apparatus also comprises a controller, wherein the controller is used for controlling the direct current inverter, the unloader and the inverter. According to the power supply access apparatus provided by the invention, one controller is adopted, so that the occupied space is reduced and the cost is lowered; multiple of the rectifier, the direct current converter, the unloader and the inverter are arranged on the same PCB, so that the usage of external cables for connection is reduced and the wiring reliability is improved; and therefore, the stable and reliable power supply of the power supply system which is formed by the power supply access apparatus can be achieved.

Description

technical field [0001] The invention relates to the field of electrical control, in particular to a power supply access device. Background technique [0002] The rapid increase of semiconductor power devices, the maturity of modern control theory, and the intelligent development of power systems have brought opportunities for the development of micro-grid devices in micro-grid systems, which have improved the size and weight of micro-grid devices. space. [0003] In a typical smart microgrid system, rectifiers, inverters, DCDC converters, wind and solar hybrid controllers, and load unloaders are all indispensable in the microgrid system in order to access and make full use of distributed energy safely and efficiently. microgrid installation. At present, the relevant products on the market are single-function independent products produced by various manufacturers. [0004] If these single-function independent products are to constitute a smart micro-grid system, each micro...

AI Technical Summary

Problems solved by technology

[0005] The system built in this way, because each function is designed separately, has repeated functional parts. For example, different single-function independent products use different controllers, which not only takes up a lot of space but also costs a lot.

[0006] The integration of independent products with different parameters will cause many difficulties in signal and communication, resulting in high development costs, difficult debugging, limited compatibility, and difficult operation and maintenance in the later stage. Problems in wiring will also affect the overall system. operational reliability

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