A tap lifting command simulation device

A technology for simulating devices and taps, which is applied to instruments, simulators, control/regulation systems, etc., and can solve problems such as the inability to truly simulate the running state of the tap position.

Inactive Publication Date: 2015-11-18
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the simulation model does not involve the simulation of the tap position, so it cannot truly simulate the tap position operation status of the HVDC DC control and protection system

Method used

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  • A tap lifting command simulation device
  • A tap lifting command simulation device
  • A tap lifting command simulation device

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Embodiment Construction

[0022] 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.

[0023] figure 2 An embodiment of the tap raising and lowering instruction simulation device of the present invention is shown, which is connected to the converter tap control device 240 of the DC control and protection system and used for the simulation of the DC control and protection system of the HVDC power transmission equipment. The tap lifting command simulation device of the present invention is one of the basic functional units of the converter tap control device 240 of the DC control and protection system. The simulation device of the DC control and protection system of HVDC transmission equipment is as follows: figure 1 shown. The converter transformer tap control device 240 is a link in the direct current transmission control system for automaticall...

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Abstract

The invention provides a tapping point rise-and-fall instruction simulation device, belongs to the field of electrical measurement, and particularly relates to a testing device used for a simulation study of a direct current control protection system of high-voltage direct current transmission equipment. A neutral current signal is connected to a first proportional component through a first arithmetic operation component, and the neutral current signal is connected to a second proportional component through a second arithmetic operation component. The first arithmetic operation component is connected to a tapping point rising signal module through a first absolute value arithmetic unit. A voltage rising signal end of a voltage control module and an angle rising signal end of an angle control module are connected to the tapping point rising signal module. The second arithmetic operation component is connected with a tapping point falling signal module through a second absolute value arithmetic unit. A voltage falling signal end of the voltage control module and an angle falling signal end of the angle control module are connected with the tapping point falling signal module. The device can truly simulate and reflect the running state of a direct current protection device, and provide corresponding simulation results for the study or design of the direct current control protection device.

Description

technical field [0001] The invention belongs to the field of electrical measurement, and in particular relates to a tap position 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 f...

Claims

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Application Information

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