A mobile high-power AC-DC hybrid power supply device

Abstract

The invention discloses a mobile type high-power alternating current (AC) / direct current (DC) hybrid power supply device which comprises a vehicle-mounted platform, a control system and more than two even converter groups. Each of the converter groups comprises more than two converter units which are connected in a mode of parallel connection of input sides and serial connection of output sides, and sequentially, AC / DC output is achieved by a serial connection or parallel connection manner of the converter groups. The control system is connected with the converter units of the converter groups and achieves controlling and monitoring of the converter units. The control system and the more than two even converter groups are installed on the vehicle-mounted platform to achieve mobile type AC / DC power supply. According to the mobile type high-power AC / DC hybrid power supply device, the relationship of serial connection and parallel connection of the converter groups is flexibly converted to achieve output of AC / DC voltage of the hybrid power supply device; and the converter groups and the control system are flexibly dragged by an automobile, so that the device is applicable to various kinds of resistance-inductance loads, achieves bi-directional flow control of energy, and can be widely applied to various kinds of load targets.

Description

technical field [0001] The invention relates to a variable current power supply device, in particular to a vehicle-mounted mobile high-power AC-DC hybrid power supply device applied in the field of power electronics technology, mainly used to provide high-quality, large-scale power supply for engineering sites or other places where power supply is inconvenient. AC and DC power supply. Background technique [0002] Most of the existing converters use half-controlled or fully-controlled semiconductor devices to adjust and transform electric energy, but limited by their own characteristics and application occasions, most of these converters are static and fixed power sources, installed indoors, and It requires a specific power transformer to power it, and an additional cooling device to dissipate heat, which greatly limits its application. Other mobile power sources, such as electric vehicles and other vehicles, have limited capacity of converter devices and cannot implement p...

AI Technical Summary

Problems solved by technology

[0002] Most of the existing converters use half-controlled or fully-controlled semiconductor devices to adjust and transform electric energy, but limited by their own characteristics and application occasions, most of these converters are static and fixed power sources, installed indoors, and It requires a specific power transformer to power it, and an additional cooling device to dissipate heat, which greatly limits its application

Other mobile power sources, such as electric vehicles and other vehicles, have limited capacity of converter devices and cannot implement parallel and series output of multiple converters on the application site, which is very limited

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