High-voltage cabinet output power adjusting circuit

A technology for outputting power and regulating circuits, applied in the field of circuits, can solve problems such as fire, large loss, easy occurrence of arcs, etc., and achieve the effects of preventing harmonics, increasing reliability, and expanding the depth of clipping
CN110994600AInactive Publication Date: 2020-04-10θ‹δΈšζ’…
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
θ‹δΈšζ’…
Publication Date
2020-04-10
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a high-voltage cabinet output power adjusting circuit which comprises a frequency acquisition circuit, a feedback compensation circuit and a voltage conversion circuit. The frequency acquisition circuit uses a power collector J1 with the model of AD8318 to acquire a power signal of the voltage output end of a high-voltage cabinet, the feedback compensation circuit uses thediodes D5 to D8 and an operational amplifier AR1 to form a composite circuit to carry out amplitude limiting-amplification-amplitude limiting adjustment on a signal, meanwhile, uses a triode Q1, a triode Q3 and a capacitor C8 to form a constant-current circuit to input the signal into the voltage conversion circuit in a constant-current manner and uses a silicon controlled rectifier VTL1 and a voltage stabilizing tube D11 to form an abnormal signal detection circuit to screen out the abnormal signals in the output signals of the constant current circuit, and finally the voltage conversion circuit is composed of a variable resistor R16, an operational amplifier AR5 and a capacitor C9 to convert a current signal into a voltage signal to output, so that the power of the voltage output end ofthe high-voltage cabinet can be monitored in real time, and meanwhile is converted into a compensation signal of the output power of the high-voltage cabinet.
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Description

technical field

[0001] The invention relates to the technical field of circuits, in particular to a high voltage cabinet output power regulating circuit. Background technique

[0002] At present, the high-voltage cabinet refers to the role of on-off, control or protection in the power generation, transmission, distribution, power conversion and consumption of the power system. The high-voltage switch manufacturing industry is an important part of the power transmission and transformation equipment manufacturing industry. Occupies a very important position in the entire electric power industry, and the power at the voltage output end of the high-voltage cabinet is due to equipment loss, especially the gradually aging equipment, which leads to an undervoltage condition of the power at the voltage output end of the high-voltage cabinet, and long-term operation. It is easy to have an electric arc, cause a fire, and cause unpredictable losses.

[0003] So the present invention p...

Claims

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