A digital compensation system and method for power supply voltage

A power supply voltage and compensation system technology, applied in the direction of AC network voltage adjustment, electrical components, circuit devices, etc., can solve the problems of poor reliability of remote power supply, instantaneous power failure, etc., achieve strong anti-interference ability, fast response speed, and meet the load The effect of electricity demand

Active Publication Date: 2020-12-11
BEIJING INST OF SPACE LAUNCH TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of poor remote power supply reliability and the risk of instantaneous power failure in the prior art, the present invention innovatively provides a digital power supply voltage compensation system and method to ensure that the power supply voltage at the load power supply terminal meets the power demand. Under the premise that the power supply voltage at the load end is not affected by the length and gauge of the power supply cable, the method of leading back the feedback line can be completely abandoned, and the reliability of remote power supply and distribution can be effectively improved to meet the actual needs of the site and protect power consumption. equipment, thereby better solving many problems existing in the prior art and overcoming various defects existing in the prior art

Method used

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  • A digital compensation system and method for power supply voltage
  • A digital compensation system and method for power supply voltage
  • A digital compensation system and method for power supply voltage

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Embodiment 1

[0043] Such as Figures 1 to 8 As shown, in order to solve the problem that the power supply voltage at the load end is affected by the length and gauge of the power supply cable during remote power supply and distribution, and at the same time to overcome the existing methods that cannot meet the needs of the power load and damage the power supply when the feedback line is disconnected. For defects such as electrical equipment, this embodiment innovatively discloses a digital compensation system for power supply voltage. The digital compensation system is the carrier of digital compensation for power supply voltage involved in the present invention, and is used to realize regulated power supply and signal acquisition for loads. , bus information communication and other functions, which include a power supply module, a current sensor and a management module, the specific description is as follows.

[0044] A current sensor, which is arranged on the power supply cable between t...

Embodiment 2

[0056] This embodiment is based on the same inventive idea as the first embodiment, and the technical solution of the present invention is explained and described in more detail from the perspective of a digital compensation method, as follows.

[0057] Such as figure 2 , 3 As shown, this embodiment discloses a digital compensation method for power supply voltage, and the digital compensation method includes the following steps.

[0058] In step 1a, the address configuration and parameter calibration of the management module are first performed, and the digital compensation process of the power supply voltage starts after the control circuit receives the bus control command.

[0059] Step 1b includes the step of controlling the closing of the power supply contactor provided on the power supply cable, so that the power supply module supplies power to the load.

[0060] Step 1c, collect the local voltage signal, the remote voltage signal and the current signal at the output o...

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Abstract

The invention discloses a power supply voltage digital compensation system and method. The system comprises a power supply module, a current sensor and a management module, wherein the current sensoris used for acquiring a current signal; the management module is used for obtaining a voltage difference signal, so that a voltage regulation signal is formed; the power supply module is used for receiving a voltage regulation signal, and adjusting the local voltage signal output by the power module according to the corresponding processing result. The method comprises the following steps: step 1,acquiring relevant signals; step 2, calculating a voltage difference signal, and performing feedforward compensation correction and PI compensation correction on the voltage difference signal, so asto form a voltage regulation signal; and step 3, adjusting the local voltage output by the power supply module according to the voltage regulation signal. The self-adaptive compensation can be carriedout on the power supply voltage of the load end of the remote power supply and distribution, the electricity demand of the load can be met, and the system has the advantages of high operation flexibility, high response speed, high voltage stabilization precision, and high anti-interference capability.

Description

technical field [0001] The present invention relates to the technical field of remote power supply and distribution, and more specifically, the present invention relates to a digital compensation system and method for power supply voltage. Background technique [0002] Generally, during remote power supply and distribution, the voltage drop of the power supply cable between the power source and the load increases with the increase of the current, which will cause the voltage of the load power supply terminal to drop, which often cannot meet the needs of the load. electricity demand. At present, in order to solve the problem of voltage drop at the load power supply end due to the influence of cable length and wire gauge, at least one power feedback line is generally led back from the load power supply end to the power supply to ensure that the voltage at the load power supply end meets the power demand. [0003] However, the above method of leading back the power supply feed...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/12H02J13/00
CPCH02J13/0062H02J3/12
Inventor 王凤国曾华鞠兴龙付进军王建军李均峰董星言许宝立
Owner BEIJING INST OF SPACE LAUNCH TECH
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