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High voltage direct current transmission system

A high-voltage direct current and power transmission system technology, applied in the direction of direct current network circuit devices, conversion equipment for intermediate conversion to direct current, electrical components, etc., can solve the problems of increased error range, installation cost and technical limitations, and improve reliability , easy to control and reduce the effect of system loss

Inactive Publication Date: 2015-11-25
LSIS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, voltage transformers used in HVDC transmission systems encounter a significant increase in error range when measuring high voltages, and when multiple voltage transformers are installed in many locations, the measurement by each voltage transformer The margin of error caused by the error must be increased
[0010] More precise sensing devices can also be used for this purpose, but there are limitations in terms of installation cost and technology in order to use more precise sensing devices

Method used

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  • High voltage direct current transmission system
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Embodiment Construction

[0042] Some embodiments will be described in more detail below with reference to the accompanying drawings. In the following description, since the suffixes "module" and "unit" of components are given and interchanged for the convenience of making the present disclosure, they do not have different meanings or functions.

[0043] The effects and characteristics of the concept of the present invention, as well as its implementation method will become clear through the embodiments described below in conjunction with the accompanying drawings. However, one embodiment may be embodied in different forms, and the inventive concept should not be construed as limited to the embodiments described in detail herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the inventive concept to those skilled in the art. And, the concept of the present invention is only defined by the scope of the claims. Like symb...

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Abstract

A high voltage direct current HVDC transmission system is provided. The HVDC transmission system includes: an integrated measurement panel (320); and an HVDC transmission device, wherein the HVDC transmission device is configured to: receive, from the integrated measurement panel, compensation values for compensating for the voltage values output through the first to Nth potential transformers (310), compensate for the voltage values output through the first to Nth potential transformers by using the received compensation values, and measure the actual voltage values by using the compensated voltage values.

Description

technical field [0001] The present invention relates to high voltage direct current (HVDC) power transmission systems, and in particular, to a high voltage direct current system that can compensate for deviations in voltage values ​​measured by a plurality of voltage transformers. Background technique [0002] High-voltage direct current (HVDC) transmission refers to converting alternating current (AC) power generated at a power station into direct current power through a transmitting station to send direct current (DC) power, and then reconverting the DC power into AC power through a receiving station to provide AC electricity. [0003] DC transmission systems are used in submarine cable power transmission, large-scale long-distance power transmission, interconnection between AC systems, etc. In addition, the HVDC system enables the interconnection and asynchronous interconnection of different frequency systems. [0004] The transmitter station converts AC power to DC pow...

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Application Information

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IPC IPC(8): H02J3/36G01R19/00
CPCH02M5/44G01R35/00H02J3/36G01R35/02Y02E60/60G01R19/165H02J1/00
Inventor 崔用吉
Owner LSIS CO LTD