Three-phase conjugate reactor and filter device

Abstract

The invention provides a three-phase conjugate reactor and a filtering device. Each single-phase conjugate reactor of the three-phase conjugate reactor is connected with different phases of a three-phase power supply, the inductance values of the single-phase conjugate reactors are different, the conjugate reactors of the single-phase conjugate reactors are accommodated in a shell, the shell is ametal shell, and a gap between the conjugate reactor and the inner cavity of the shell is filled with resin; a first inductance coil and a second inductance coil of the conjugate reactor are wound onthe conjugate iron core, a first end of the first inductance coil of the line bank is connected with the first line bank, a second end of the first inductance coil of the line bank is connected with afirst end of the second inductance coil and the second line bank, and the third line bank is connected with a second end of the second inductance coil. Through separate arrangement, metal shell installation and resin heat dissipation, the installation difficulty is reduced, the protection grade and shock resistance of the reactor are improved, water cooling heat dissipation is facilitated, and the heat dissipation effect is further improved.

Description

technical field [0001] The invention relates to the field of power electronic equipment, in particular to a three-phase conjugate reactor and a filtering device. Background technique [0002] With the development of power electronics technology and the expansion of application range, it is often necessary to use three-phase LCL filter reactors for filtering, while the traditional solution is to use two independent three-phase reactors with different inductances for filtering together, and this The disadvantage of the traditional solution is that the two three-phase reactors have the characteristics of relatively large volume, heavy weight, and poor heat dissipation, which cannot meet the requirements of protection level IP67, mechanical vibration, and heat conduction heat dissipation through the water-cooled plate. Contents of the invention [0003] In order to overcome the deficiencies of the prior art, the present invention proposes a three-phase conjugate reactor and a ...

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Problems solved by technology

[0002] With the development of power electronics technology and the expansion of application range, it is often necessary to use three-phase LCL filter reactors for filtering, while the traditional solution is to use two independent three-phase reactors with different inductances for filtering together, and this The disadvantage of the traditional solution is that the two three-phase reactors have the characteristics of relatively large volume, heavy weight, and poor heat dissipation, which cannot meet the requirements of protection level IP67, mechanical vibration, and heat conduction heat dissipation through the water-cooled plate.

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