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Direct-current control protection simulation device based on RTDS

A technology for DC control protection and simulation devices, which is applied in general control systems, control/regulation systems, instruments, etc., can solve problems such as the inability to truly simulate and reflect the operating status of HVDC DC control and protection systems, and improve modeling and simulation Accuracy, the effect of reducing the calculation load

Inactive Publication Date: 2013-08-21
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the simulation model does not involve the simulation of DC control and protection, and cannot truly simulate and reflect the operating status of the HVDC DC control and protection system

Method used

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  • Direct-current control protection simulation device based on RTDS
  • Direct-current control protection simulation device based on RTDS
  • Direct-current control protection simulation device based on RTDS

Examples

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Embodiment Construction

[0025] In order to better understand the above-mentioned technical solution of the present invention, a further detailed description will be given below in conjunction with the accompanying drawings and embodiments.

[0026] The RTDS-based DC control and protection simulation device of the present invention is used for the simulation of the DC control and protection system of high-voltage DC transmission equipment. An embodiment of the RTDS-based DC control and protection simulation device is as follows figure 1As shown, it includes a control unit 200, a DC system protection unit 300, an operation control workstation 900, and an RTDS real-time digital simulator for performing real-time digital simulation on the high-voltage direct current transmission equipment 100. The high-voltage direct current transmission equipment 100 includes a AC filter switching device 110 , converter transformer 120 and thyristor converter 130 ; control unit 200 includes converter trigger angle contro...

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Abstract

The invention discloses a direct-current control protection simulation device based on an RTDS and belongs to the field of electrical measurement, and particularly relates to a simulation testing device which is used for simulation study of a direct-current control protection system of high voltage direct-current transmission equipment. The direct-current control protection simulation device based on the RTDS comprises a control unit and a direct-current system protection unit. An operational control work station is connected to an inverter firing angle control module through a polar power control module. The inverter firing angle control module is connected to a thyristor converter through a trigger pulse generating module. The direct-current system protection unit is connected to the inverter firing angle control module and locking signals are transmitted to the inverter firing angle control module when a direct-current system is in a failure state. The direct-current control protection simulation device based on the RTDS can truly simulate and reflect the operating state of a direct-current control protection device, and provides a corresponding simulating result for a study or design of the direct-current control protection device. A mixed simulating mode can relieve computational burden of an RTDS stimulator and is beneficial to improvement of modeling simulation accuracy of the simulating device.

Description

technical field [0001] The invention belongs to the field of electrical measurement, and in particular relates to a simulation test device used for simulation research of a DC control and protection system of high-voltage direct current transmission equipment. Background technique [0002] The ever-increasing demand for electricity has led to the development of power transmission systems in the direction of long distance, large capacity and high stability. As the construction projects of UHV AC transmission projects and HVDC transmission projects in various power grid regions continue to increase, the power grids in areas where power consumption is concentrated show obvious characteristics of UHV AC-DC hybrid receiving-end power grids with multi-DC feeds. The power grid structure is tight, and the electrical distance between multiple AC and DC lines is closer. After the UHV and EHV AC systems fail, it is easy to cause multiple DCs including high-voltage DCs to fail at the sa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B17/02
Inventor 崔勇郭强
Owner STATE GRID CORP OF CHINA
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