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System and method for testing sub-synchronous oscillation suppression of SVG (Static Var Generator) based on RTDS (Real Time Digital Simulator)

A technology of subsynchronous oscillation and testing method, which is applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., and can solve problems such as grid damage

Active Publication Date: 2017-02-22
上海思源弘瑞自动化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the suppression effect of SVG can only be verified in the actual power grid system. If the suppression effect of SVG is not good, it will cause damage to the power grid, and there is a certain risk
Therefore, the defect in the existing technology is that there is no test system and method for SVG suppression of subsynchronous oscillation, which can verify the suppression effect of SVG on subsynchronous oscillation when the SVG is not connected to the actual power grid.

Method used

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  • System and method for testing sub-synchronous oscillation suppression of SVG (Static Var Generator) based on RTDS (Real Time Digital Simulator)
  • System and method for testing sub-synchronous oscillation suppression of SVG (Static Var Generator) based on RTDS (Real Time Digital Simulator)
  • System and method for testing sub-synchronous oscillation suppression of SVG (Static Var Generator) based on RTDS (Real Time Digital Simulator)

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The embodiment of the present invention provides an RTDS-based SVG suppression subsynchronous oscillation test system, please refer to figure 1 , which is a schematic diagram of an RTDS-based SVG suppression subsynchronous oscillation test system provided in Embodiment 1 of the present invention.

[0041] The embodiment of the present invention provides an RTDS-based SVG suppression subsynchronous oscillation test system, including: RTDS1, including a GTAO board 12 for analog signal output, a GTDI / DO board 13 for digital signal input and output, Control interface board 14 and processor board 11 for communication, processor board 11 is connected with GTAO board 12, GTDI / DO board 13 and control interface board 14, for processing GTDI / DO board 13 and Control the data received by the interface board 14, and output the processed data through the GTAO board 12, the GTDI / DO board 13 and the control interface board 14; the power amplifier 2 is connected to the GTAO board 12 for...

Embodiment 2

[0046] The embodiment of the present invention provides a test method for suppressing subsynchronous oscillation in SVG, please refer to figure 2 , which is a schematic diagram of a SVG suppression subsynchronous oscillation test method provided in Embodiment 2 of the present invention.

[0047] An embodiment of the present invention provides a SVG suppression subsynchronous oscillation test method, which is implemented by using the above-mentioned RTDS-based SVG suppression subsynchronous oscillation test system, including:

[0048] S1: Through the control equipment, combined with RTDS, power amplifier, photoelectric converter and SVG controller to establish a simulated power grid model;

[0049] S2: setting at least two SVG operation modes;

[0050] S3: switch to execute the SVG operation mode, and drive the power grid model to run by controlling the equipment to conduct the SVG suppression subsynchronous oscillation test, and obtain at least two test results;

[0051] S4...

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Abstract

The embodiment of the invention provides a system for testing sub-synchronous oscillation suppression of an SVG (Static Var Generator) based on an RTDS (Real Time Digital Simulator). The system comprises an RTDS, a power amplifier, an optical-electrical converter, an SVG controller and control equipment, and is characterized in that the RTDS comprises a GTAO board card used for analog signal output, a GTDI / DO board card used for digital signal input and output, a control interface board card used for communication and a processor board card; the power amplifier is connected with the GTAO board card and used for receiving analog signals outputted by the GTAO board card, amplifying the analog signals and outputting the amplified analog signals; the optical-electrical converter is applied to conversion between optical signals and electrical signals; the SVG controller is connected with the power amplifier and the optical-electrical converter, and controls the operating state of the SVG; and the control equipment is connected with the control interface board card, communicates with the processor board card through the control interface board card, and is used for building a simulation power grid model so as to test sub-synchronous oscillation suppression of the SVG. The technical scheme provided by the embodiment of the invention can verify a suppression effect of the SVG for sub-synchronous oscillation under the condition that the SVG is not connected to the actual power grid.

Description

technical field [0001] Embodiments of the present invention relate to the field of subsynchronous oscillation testing in power systems, and in particular to an RTDS-based SVG suppression subsynchronous oscillation testing system and method. Background technique [0002] In high-voltage or ultra-high-voltage long-distance transmission systems, in order to increase the transmission capacity of the system and improve the stability of the system, series capacitor compensation technology is usually used, but at the same time it will also bring the risk of subsynchronous oscillation. [0003] As a new type of power electronic equipment, SVG (Static Var Generator) can inject specified frequency current into the power system, improve the transient characteristics and steady-state characteristics of the system, and have an inhibitory effect on the subsynchronous oscillation of the power system. , has been widely used in power systems in recent years. [0004] However, the suppressio...

Claims

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Application Information

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IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 吴焕孙大南黄磊牛姣姣
Owner 上海思源弘瑞自动化有限公司
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