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Power dualization device and control method for hvdc system

一种控制方法、双重化的技术，应用在电路装置、直流网络电路装置、电力传输交流网络等方向，能够解决HVDC控制器不能够控制HVDC系统、劣化电力传输可靠性、不能继续控制高直流电压传输等问题，达到提高可靠性的效果

Active Publication Date: 2019-02-19
HYOSUNG HEAVY IND CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is, there arises a problem that when driving power is interrupted, the HVDC controller cannot control the entire HVDC system, and thus cannot continue to control high DC voltage transmission, thereby seriously deteriorating the reliability of power transmission using the HVDC system

Method used

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  • Power dualization device and control method for hvdc system
  • Power dualization device and control method for hvdc system
  • Power dualization device and control method for hvdc system

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Embodiment Construction

[0022] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In describing the present invention, known functions or configurations that are considered to unnecessarily obscure the gist of the present invention will be omitted below.

[0023] Such as figure 1 As shown, the dual power monitoring device for HVDC controllers 50 and 60 according to the present invention includes a first independent power generator 10, a second independent power generator 20, a first power supplier 30, a second power supplier 40 . The first HVDC controller 50 , the second HVDC controller 60 and the power monitoring controller 70 .

[0024]The first independent power generator 10 receives the first input power and generates and outputs the first power, and the second independent power generator 20 receives the second input power and generates and outputs the first power. The first power supplier 30 selectively receives ...

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Abstract

The present invention relates to a power dualization device for an HVDC system and a control method thereof, and the power dualization device for an HVDC system includes: a first independent power generator receiving a first independent power generator an input power for generating and outputting first power; a second independent power generator receiving a second input power for generating and outputting said first power; a first power supplier for said first power supply A power supplier selectively receives first power output from the first independent power generator and the second independent power generator, respectively, so as to convert the first power into a second electric power of a smaller magnitude, and output the second electric power; a second electric power supplier, the second electric power supply is used for selectively receiving the independent electric power from the first independent electric power generator and the first independent electric power generator respectively; first power output by two independent power generators to convert the first power into second power having a magnitude smaller than that of the first power and output the second power; the first HVDC control The first HVDC controller is configured to receive the second power output from the first power supplier, so as to activate the first HVDC controller and control the HVDC converter; the second HVDC controller, the first two HVDC controllers for receiving second power output from the second power supplier to activate the second HVDC controller and control the HVDC converter; and a power monitoring controller for using for transferring the first power output from the first independent power generator or the second independent power generator to the first power supplier and the second power supplier so that by comparing the first power The magnitude and the magnitude of the first reference power are stored in advance, and when the first power has a magnitude different from the magnitude of the first reference power, the first power having the same magnitude as the first reference power is generated.

Description

technical field [0001] The present invention generally relates to a power duplication apparatus (powerduplication apparatus) and a control method thereof for a high-voltage direct current (HVDC) system, and more particularly relates to a power duplication apparatus and a control method thereof for a HVDC system, Wherein, dual (duplicate) independent power supply units separated from the commercial power supply are provided, and the power duplication device and control method thereof for the HVDC system can monitor the operating state (operating state) of each of the independent power supply units, and then Power is selectively supplied to the dual HVDC controllers. Background technique [0002] High voltage direct current (HVDC) systems employ methods for overcoming power losses that occur in long-distance power transmission. Such an HVDC system uses a method of converting AC power produced by a power plant into DC power, transmitting the DC power, and converting the DC pow...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J9/06H02J1/00
CPCH02J1/10H02J3/36Y02E60/60H02J9/061
Inventor 吴在勋姜孝珍
Owner HYOSUNG HEAVY IND CORP
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