Far-end voltage stabilizing method based on single-line voltage-drop sampling computing and compensating

Abstract

The invention discloses a far-end voltage stabilizing method based on single-line voltage-drop sampling computing and compensating. The far-end voltage stabilizing method comprises the following stepsof 1, making two ends of a fine wire connected with a sampling input positive electrode of a single-chip microcomputer and a power supply negative electrode of a load end respectively, and making a sampling input negative electrode of the single-chip microcomputer connected with a power supply output end negative electrode of a power source; 2, in the process of supplying power to a load by the power source, sampling voltage signals on the fine wire, and determining a compensation voltage value according to the voltage signals; 3, adjusting output voltage of the power source according to thedetermined compensation voltage value. By means of the far-end voltage stabilizing method based on single-line voltage-drop sampling computing and compensating, voltage difference between a negative electrode of the power source and a negative electrode of the load is innovatively sampled, and according to the sampling result, compensation voltage is determined to remotely adjust the voltage difference compensation reliably. Therefore, the far-end voltage stabilizing method has the outstanding advantages of being high in reliability, easy to implement, high in adaptability and the like.

Description

technical field [0001] The present invention relates to the technical field of voltage stabilization methods, more specifically, the present invention is a remote voltage stabilization method based on single-line voltage drop sampling calculation and compensation. Background technique [0002] At present, the AC-DC power supply can convert three-phase power, single-phase power, and high-voltage direct current into low-voltage high-current and output it. However, in many long-distance low-voltage power supply applications, due to the large output current of the power supply, the length of the power supply cable used to transmit electric energy is relatively long, which will cause a voltage drop on the power supply cable, which will lead to insufficient power supply voltage for the load, making it difficult to To meet the power requirements of the load equipment, especially for loads with various types, some types of loads have high requirements for voltage supply. If the powe...

AI Technical Summary

Problems solved by technology

However, in many long-distance low-voltage power supply applications, due to the large output current of the power supply, the length of the power supply cable used to transmit electric energy is relatively long, which will cause a voltage drop on the power supply cable, which will lead to insufficient power supply voltage for the load, making it difficult to Meet the power requirements of load equipment, especially for loads with various types, some types of loads have high requirements for voltage supply, if the power supply voltage at the load does not meet the requirements, the load cannot work normally

[0003] Therefore, how to solve the problem of voltage drop at the load end caused by too long power supply cables has become a technical problem to be solved urgently by those skilled in the art and the focus of research all the time

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