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Method and device for controlling voltage of alternating current bus, electronic equipment and system

A technology of AC bus voltage and AC voltage, applied in the direction of AC network voltage adjustment, reactive power compensation, etc., can solve problems such as frequent switching, and achieve the effect of prolonging life and saving communication costs.

Pending Publication Date: 2022-04-12
NR ELECTRIC CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The application provides a method and device for controlling AC bus voltage, electronic equipment and system, which can effectively solve the problem of frequent switching of multiple systems in the process of controlling the same section of AC bus voltage, reduce application costs, and delay AC voltage Control equipment lifespan

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  • Method and device for controlling voltage of alternating current bus, electronic equipment and system
  • Method and device for controlling voltage of alternating current bus, electronic equipment and system
  • Method and device for controlling voltage of alternating current bus, electronic equipment and system

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Embodiment Construction

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.

[0035] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this application will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar par...

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PUM

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Abstract

The invention provides a method and device for controlling alternating current bus voltage, electronic equipment and a system. The method comprises the steps that an alternating current voltage value is collected in real time; performing switching logic judgment by using the alternating voltage value and a preset voltage constant value to obtain a switching / switching signal of the voltage control equipment; transmitting the switching / switching signal to a counter in a delayed manner; counting by using the counter to obtain a count value; and comparing the count value with a preset fixed value to output a switching command. According to the technical scheme provided by the invention, the problem of frequent switching generated in the process of controlling the same section of alternating current bus voltage by multiple systems can be effectively solved, and the method does not depend on communication connection among the multiple systems, so that the application cost is reduced, and the service life of alternating current voltage control equipment is prolonged.

Description

technical field [0001] The present application relates to the fields of flexible power transmission and high-voltage direct current transmission control and protection, in particular, to a method and device for multi-system coordinated control of AC voltage, and electronic equipment and system. Background technique [0002] At present, in the process of long-distance power transmission, due to the advantages of flexible power transmission and HVDC transmission with low loss and cost economy, they are more and more widely used in national power transmission. [0003] During the operation of flexible power transmission and HVDC transmission, it is necessary to control the AC side voltage to ensure the stability of the AC side voltage. A common control method is to switch on or off AC filters, reactors, capacitors and other equipment in the converter station to maintain the stability of the AC voltage. [0004] Generally, if a section of AC bus is controlled by only one AC vol...

Claims

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Application Information

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IPC IPC(8): H02J3/16
CPCY02E40/30
Inventor 刘凯邹强肖建民刘孝辉任力帅刘鹏
Owner NR ELECTRIC CO LTD