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Reactive in-place intelligent compensation device for three-phase asynchronous motor

A three-phase asynchronous, electric motor technology, applied in reactive power compensation, reactive power adjustment/elimination/compensation, AC motor control, etc., can solve the problems of large installation area, difficult integration, low compensation efficiency, etc., to achieve convenient installation And use, prolong service life, improve the effect of compensation efficiency

Inactive Publication Date: 2014-08-06
广西玉林玉柴通用机械有限公司
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  • Application Information

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Problems solved by technology

Moreover, the important requirement of the reactive power compensation device is to hope that it can continuously adjust the reactive power of the compensation device and intelligently compensate to stabilize the working voltage. Many of this continuous adjustments are realized by the controller adjusting the AC contactor or adjusting the composite switch. However, AC contactors or composite switches have long response time and large heat generation, are easily damaged, have short service life, low compensation efficiency, and are not easy to integrate. External interference and corrosion

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  • Reactive in-place intelligent compensation device for three-phase asynchronous motor
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  • Reactive in-place intelligent compensation device for three-phase asynchronous motor

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Embodiment Construction

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0019] The invention provides a device for reactive power in-situ intelligent compensation of three-phase asynchronous motors, figure 1 It is a schematic diagram of a single device connected to a three-phase asynchronous motor for reactive power on-site intelligent compensation of a three-phase asynchronous motor according to the present invention. In the figure, it can be seen that the device includes a dry-type low-voltage power capacitor 4 and a high breaking capacity circuit breaker 2 , soft switching switch 3 and DSP chip controller 5. The dry-type low-voltage power capacitor 4 is connected in delta with three capacitors, and the three capacitors are connected in parallel with the AB phase, BC phase, and AC phase of the input three-phase alternating current of the motor ...

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Abstract

The invention discloses a reactive in-place intelligent compensation device for a three-phase asynchronous motor. The reactive in-place intelligent compensation device comprises a dry-type low-voltage power capacitor, a high-breaking-capacity breaker, a soft fling-cut switch and a DSP chip controller, the soft fling-cut switch, the high-breaking-capacity breaker and the DSP chip controller are welded to a circuit board, the circuit board and the dry-type low-voltage power capacitor are packaged into a box, and a terminal block is led out from the box to be connected to the three-phase asynchronous motor to achieve intelligent reactive power compensation. In addition, the reactive in-place intelligent compensation device in the design is small in integration size, convenient to install and high in compensation efficiency, line losses and motor heating are greatly reduced, the power energy is saved, the working voltage is stabilized, and the service life of the motor is prolonged.

Description

technical field [0001] The invention relates to the field of on-site reactive compensation of three-phase asynchronous motors, in particular to a device for on-site reactive compensation of three-phase asynchronous motors. Background technique [0002] In recent years, the reactive power compensation device has been greatly developed, and the compensation requirements and types are various. According to the compensation demand, the corresponding compensation device can be prepared to greatly improve the efficiency and produce better results. Moreover, the important requirement of the reactive power compensation device is that it can continuously adjust the reactive power of the compensation device and intelligently compensate to stabilize the working voltage, and this continuous adjustment is often achieved by the controller adjusting the AC contactor or adjusting the composite switch. However, AC contactors or composite switches have long response time and large heat genera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/18H02P25/02
CPCY02E40/30
Inventor 邓毅陈小燕
Owner 广西玉林玉柴通用机械有限公司
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