Fibre channel protector test method for simulating system failure and channel abnormal simultaneously

An optical fiber channel and simultaneous simulation technology, which is applied to emergency protection circuit devices, automatic disconnection emergency protection devices, electrical components, etc., can solve problems such as testing technology that does not involve simultaneous simulation of system faults and channel anomalies, and achieve reliable control. , the effect of strong practicality

Active Publication Date: 2012-11-21
STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Method 1: Li Ruisheng's "Optical Fiber Current Differential Protection and Channel Test Technology" (Beijing: China Electric Power Press, 2006) and Method 2: Ni Weidong, Li Ruisheng, Li Zhengfeng's "Optical Fiber Current Differential Protection Channel Test and Research" ( Relay, 2005, 33(8): 68-70) all mentioned the fiber channel test method, but only described the channel is maintained in an abnormal situation, and then simulated system failure, did not involve the simultaneous simulation of system failure and channel abnormal test technology

Method used

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  • Fibre channel protector test method for simulating system failure and channel abnormal simultaneously
  • Fibre channel protector test method for simulating system failure and channel abnormal simultaneously
  • Fibre channel protector test method for simulating system failure and channel abnormal simultaneously

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Experimental program
Comparison scheme
Effect test

Embodiment

[0045] The embodiment of test method proposed in the present invention is as follows:

[0046] The instruments and related equipment used in this test include optical synchronous transmission system, communication bit error generator, digital multiplexing interface device and line optical fiber phase-splitting current differential protection device PSL 603U, etc., as shown in Table 2 below.

[0047] Table 2 Instruments used in the test

[0048] equipment name

model

quantity

optical synchronous transmission system

CGCS-1000

2 sets

Communication error generator

TWM-1(G703)

2 sets

DMI

GXC-64 / 2M

2 sets

Line Split Phase Current Differential Protection

PSL 603U

2 sets

[0049] When doing the protection function test, the differential current setting is set to 0.2A, the CT secondary rated current is 1.0A, the load current is 0.7A, and the short-circuit current after a fault is 32.4A.

[0050] Bef...

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Abstract

The invention discloses a test method of simultaneously simulating system failure and channel abnormal to a fibre channel protector. The method comprises the following steps: a power system real-time digital simulation system is used to control when a system failure occurs, after the occurrence of the failure, a current power amplifier outputs failure current, an overcurrent relay is accessed, the overcurrent relay acts in the action delay set by a time relay, and the closure of secondary contact is triggered, an error code generator is started so that various abnormal actions of the channel can be added in the error code generator after the system failure, wherein the abnormal actions contain channel interrupt, superposition of error code, superposition of time delay, superposition of error code and time delay, and the like. The method can simulate power system failure while reliably controlling various abnormal actions of the fibre channel.

Description

technical field [0001] The invention relates to a test method for a relay protection device in a power system, in particular to a test method for simulating system faults and channel anomalies for various fiber channel protection devices, which is used to test various principle protection devices for fiber channel abnormalities The experimental analysis and research, including phase-splitting current differential protection, longitudinal distance protection, longitudinal direction protection, etc., can provide an effective test method for the study of the impact of fiber optic channel on protection. It belongs to the field of electric power system relay protection. Background technique [0002] Optical fiber phase split current differential protection has the advantages of simple setting, high sensitivity, no need for phase selection, strong anti-interference ability, and is not affected by system oscillation and load current. It has become the mainstream product of transmis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H7/00H02H3/093
Inventor 许庆强周栋骥李修金高磊邓洁清
Owner STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST
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