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Soft characteristic electric reactor

A kind of reactor, soft characteristic technology, applied in the direction of circuit, magnetic material, magnetic object, etc., can solve the problems such as the inability to match the running characteristics of the elevator and limit the performance of the elevator.

Pending Publication Date: 2021-04-09
上海意兰可电力电子设备有限公司 +1
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Problems solved by technology

[0007] Therefore, the existing iron-core reactors cannot match the operating characteristics of the elevator well, and the use of the existing iron-core reactors limits the performance of the elevator

Method used

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Embodiment Construction

[0024] The structure of the soft characteristic reactor as shown in the figure includes: an upper iron yoke 1 , a lower iron yoke 3 and three iron core columns 2 wound with coils 4 .

[0025] Combined graph figure 2 and Figure 4 As shown, each iron core column 2 is assembled together by the first iron core 21 and the second iron core 22 and the coil 4 is wound on the overall structure of the first iron core 21 and the second iron core 22 assembled together formed from the outside. The winding method of the coil 4 adopts the conventional winding method in the field, and the wiring also adopts the conventional wiring method in the field, which will not be repeated here. The upper iron yoke 1 includes a first upper iron yoke 11 and a second upper iron yoke 12, the lower iron yoke 3 includes a first lower iron yoke 31 and a second lower iron yoke 32, and the first iron core 21 is arranged on the first upper iron yoke 11 and the first lower iron yoke 31 , the second iron core ...

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Abstract

The invention relates to the technical field of power electronic equipment. The invention aims to provide the soft characteristic reactor, and the inductance value of the soft characteristic reactor is reduced along with the increase of current in a certain range so as to adapt to the operation characteristics of an elevator. The invention discloses a novel soft characteristic electric reactor structure which comprises an upper iron yoke, a lower iron yoke and three iron core columns wound with coils. Wherein each iron core column comprises a first iron core and a second iron core which are made of silicon steel, the magnetic conductivity of the first iron core is higher than that of the second iron core, the first iron core and the second iron core are respectively provided with a plurality of air gaps, and a coil is wound outside the first iron core and the second iron core which are assembled together to form the iron core column wound with the coil; the upper iron yoke comprises a first upper iron yoke and a second upper iron yoke, and the lower iron yoke comprises a first lower iron yoke and a second lower iron yoke; the first upper iron yoke, the first lower iron yoke and the first iron core are made of the same silicon steel material, and the second upper iron yoke, the second lower iron yoke and the second iron core are made of the same silicon steel material.

Description

technical field [0001] The invention relates to the technical field of power electronic equipment, in particular to a soft characteristic reactor. Background technique [0002] Most of the current elevator designs are designed to adopt frequency conversion speed regulation technology and adopt the method of absorbing braking energy by external high-power braking resistors, which wastes a lot of electric energy. If full-digital PWM technology and bidirectional high-power DC / DC technology are used With emerging technologies, the comprehensive power saving rate can be as high as 30%. As one of the main equipment in the elevator energy storage system, the rectification / inversion filter reactor has an important impact on the energy saving of the elevator and the power quality of the grid. [0003] The load rate of the elevator is very different when it is running, which requires the reactor to have better filtering performance when it is running at no load or at full load. Spec...

Claims

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Application Information

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IPC IPC(8): H01F27/245H01F1/34
CPCH01F1/344H01F27/245
Inventor 徐启惠曹仲飞朱海超王甫新袁继红曹雁然
Owner 上海意兰可电力电子设备有限公司
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