Integrated filter unit and four-quadrant inverter

Abstract

The embodiment of the invention discloses an integrated filtering unit and a four-quadrant frequency converter, which are used for realizing the miniaturization and the integration of the integrated filtering unit and the four-quadrant frequency converter, wherein an integrated filtering unit provided by embodiment of the invention comprises a first installation rack, an output reactor, an input reactor, a capacitance module and a first resistance, the first installation rack is divided into an output reactor bin, an input reactor bin, a capacitance bin and a resistance bin from bottom to top; the output reactor is arranged in the output reactor bin, the input reactor is arranged in the input reactor bin,, the capacitance module is arranged in the capacitance bin, and the first resistance is arranged in the resistance bin.

Description

technical field [0001] The invention relates to the technical field of electronic power, in particular to an integrated filter unit and a four-quadrant frequency converter. Background technique [0002] The frequency converter is a power control device that converts the power frequency power supply into an adjustable frequency power supply by using the on and off functions of power semiconductor devices. The existing four-quadrant inverter products mainly include power distribution cabinets (also called incoming line cabinets), filter cabinets, rectifier cabinets and inverter cabinets, which are all independent cabinet structures, which are composed of these cabinets. Existing four-quadrant inverters, such as figure 1 As shown, the existing four-quadrant inverter includes power distribution cabinets, filter cabinets, rectifier cabinets and inverter cabinets. These cabinets are independent of each other and connected by cables and control lines. Moreover, the components in ...

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Problems solved by technology

[0003] Since the multiple cabinets included in the existing four-quadrant inverter are all formed in a single cabinet, the components included in the filter cabinet included in the four-quadrant inverter have not been modularized and integrated, which is not convenient for installation, maintenance, and structure. Not compact, poor installation process

In addition, the layout of cabinets such as filter cabinets arranged in sequence makes the overall structure of the four-quadrant inverter large in size, large in appearance, and large in floor space. During packaging and transportation, it is often necessary to dismantle the wiring and separate the cabinets, and then assemble the cabinets when they are installed on site. Wiring increases the workload of loading and unloading, and the cost is too high, and the transportation, installation and management are not convenient

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