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Stability control system multifunctional detection terminal

A technology for detecting terminals and stabilizing control systems, applied in general control systems, control/regulation systems, testing/monitoring control systems, etc., can solve problems such as high cost, low test efficiency, and inability to simulate large-scale power systems, and achieve reliable verification. sexual effect

Inactive Publication Date: 2017-07-14
ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The dynamic model test can truly reflect the process of the dynamic system, intuitively reflects and has clear meanings, but the simulation scale is restricted by factors such as laboratory equipment and venues, and cannot simulate large-scale power systems. Moreover, the test efficiency is low and the cost is high. Tests to verify failure criteria for new products or partial factory acceptance tests

Method used

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  • Stability control system multifunctional detection terminal
  • Stability control system multifunctional detection terminal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as figure 2 As shown, the steps of single-phase instantaneous ground fault detection include the following aspects:

[0037] Step 1: Connect the various components of the multi-function detection terminal correctly;

[0038] Step 2: Toggle the DIP switch of the voltage of the analog safety tester until the display interface of the safety device under test displays the simulated voltage, and the simulated voltage decreases from the normal value;

[0039] Step 3: Toggle the dial switch of the current of the analog safety tester until the display interface of the safety device to be tested displays the simulated current, and the simulated current increases from the rated value;

[0040] Step 4: Toggle the DIP switch of the switching value of the analog safety tester until the corresponding switch is displayed on the display interface of the safety device to be tested. After simulating a single-phase fault, the corresponding switch trips.

Embodiment 2

[0042] For a stability control system with three substations, the digital tester simulates one of the substations. The dynamic characteristic test process is as follows: the stability control master station receives the necessary information from the substations sent by the digital tester and satisfies the action conditions. The digital tester sends an action command, and after receiving the action command, the digital tester sends it to the supporting test software. The supporting test software generates the action behavior of the stability control system substation and sends it to the stability control master station in digital form through Ethernet.

Embodiment 3

[0044]A stability control system with three sub-stations. The digital tester simulates the stability control master station. The dynamic characteristic test process is as follows: After the digital tester receives the necessary information from the three stability control sub-stations, it sends it to The supporting test software generates action digital commands according to the control strategy table in the supporting test software, and sends them to the digital tester. After receiving the action commands, the digital tester sends them to each substation, and each substation makes corresponding actions and returns action information. .

[0045] The multi-functional detection terminal of the stability control system adopted in the present invention provides current or voltage analog signal and switch signal through the analog stability tester, which satisfies the single functional test of the stability control device; independently simulates the stability control through the di...

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Abstract

The invention discloses a stability control system multifunctional detection terminal, and relates to the technical field of electric power system simulation test. The multifunctional detection terminal comprises an analog stability tester, a digital stability tester and matching test software. Current or voltage analog quantity signals and switching quantity signals are provided through the analog stability tester so as to meet functional unit testing of a stability control device to be tested. The motion behavior of a stability control main station or sub-station is independently simulated through the digital stability tester, and the digital stability tester is connected with the stability control device to be tested and the matching test software through the network so that testing of the stability control system dynamic characteristics can be realized without cooperation of the superior stability control main station. According to the multifunctional detection terminal, closed-loop testing of the equipment level of the stability control device can be completed, and system level simulation test verification can also be performed on the complete stability control configuration scheme and the expected dynamic behavior thereof.

Description

technical field [0001] The invention belongs to the technical field of power system simulation tests, and in particular relates to a multifunctional detection terminal for a stability control system. Background technique [0002] The safety and stability of the power system has always been a key concern in the operation and control of the power system. Once the stability of the power grid is damaged, in addition to the serious consequences that may lead to the collapse of the power grid, it will also cause huge economic losses and major social impacts. Regional stability control is an important means to ensure the safe and stable operation of the current power system. [0003] Usually, the design and configuration of regional stability control devices are completed according to the operation scale and actual needs of the power grid. At present, the dynamic operation characteristics of large-scale power grids are complex, and there are many types and large-scale safety contr...

Claims

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Application Information

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IPC IPC(8): G05B23/02
CPCG05B23/0205
Inventor 孙志媛李明珀刘默斯梁水莹周卫
Owner ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
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