Active filter device based on wireless sensing technology

A wireless sensing technology and filtering device technology, which is applied in the field of active filtering devices, can solve the problem of high distortion of sampling signals, and achieve the effect of improving transmission reliability and transmission distance

Inactive Publication Date: 2015-09-30
LIVESINE ELECTRIC SHANGHAI CO LTD
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  • Abstract
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Problems solved by technology

In practical applications, the quality of the sampling signal determines the compensation effect and the stability of the equipment. In many on-site sampling sources (the location where the transformer is

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  • Active filter device based on wireless sensing technology

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Embodiment Construction

[0012] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation and specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

[0013] like figure 1 As shown, a kind of active filter device based on wireless sensor technology, comprises mutual inductor 1, digital signal processor 2 and inverter 3, and described inverter 3 is connected with digital signal processor (DSP) 2, A wireless sensor sampling converter 4 is installed on the transformer 1, a wireless receiver 5 is connected to the digital signal processor 2, and the wireless sensor sampling converter 4 includes a connected built-in acquisition conversion The circuit 41 and the wireless sending circuit 42, the wireless sending circuit 42 is connected wit...

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Abstract

The invention relates to an active filter device based on a wireless sensing technology. The active filter device comprises a mutual inductor, a digital signal processor and an inverter, wherein the inverter is connected with the digital signal processor, a wireless sensing sampling converter is installed on the mutual inductor, a wireless receiver is connected to the digital signal processor, the wireless sensing sampling converter comprises an internal acquisition conversion circuit and a wireless sending circuit which are connected, and the wireless sending circuit is connected with a wireless receiver through a wireless network; the wireless sensing sampling converter converts the sampling signal acquired from the mutual inductor to a digital signal and sends out the digital signal through the wireless network, the wireless receiver receives the digital signal and then transmits the digital signal to the digital signal processor, and the digital signal processor controls the output of the inverter according to the received signal. Compared with the prior art, the active filter device disclosed by the invention has the advantages of being low in transmission interference, long in transmission distance, and the like.

Description

technical field [0001] The invention relates to an active filter device, in particular to an active filter device based on wireless sensor technology. Background technique [0002] The application of active filtering devices can overcome the shortcomings of traditional harmonic suppression and reactive power compensation methods such as LC filters (traditional compensation can only be fixed), realize dynamic tracking compensation, and can complement both harmonics and reactive power. The active filtering device needs to have a set of sampling signal input (transformer) when in use, and use this signal to analyze the harmonics of the measured current so as to control the inverter to output opposite and equal harmonics to offset and compensate them. In practical applications, the quality of the sampling signal determines the compensation effect and the stability of the equipment. In many on-site sampling sources (the location where the transformer is installed) to the filter, ...

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Application Information

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IPC IPC(8): H02J3/01H02J13/00
CPCY04S40/126Y02E60/00Y02E40/40
Inventor 戴维
Owner LIVESINE ELECTRIC SHANGHAI CO LTD
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