Zone control network topology five-preventing system for 500KV converting station

A regional control and network topology technology, applied in the direction of power network operating system integration, information technology support system, electrical components, etc., can solve problems such as misoperation and hidden dangers affecting power grid security, so as to improve safety, reduce human misjudgment, The effect of ensuring safety

Inactive Publication Date: 2007-03-14
CSG EHV POWER TRANSMISSION
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AI Technical Summary

Problems solved by technology

At present, the microcomputer five-proof system can only realize the five-proof system in this station, and the operation involving two or more 500kV substations is judged by the dispatcher according to the equipment status of the dispatching system. Due to personnel misjudgment, there are potential safety hazards that may affect the power grid due to misoperation

Method used

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  • Zone control network topology five-preventing system for 500KV converting station

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Embodiment

[0014] Figure 1 shows the wiring diagram of the five-proof principle of the tie line network topology between the 500kV substations. The five-proof system of the 500kV substation regional control network topology realizes the topology analysis according to the power grid diagram. The system will automatically define the node number for each equipment type, such as The three-coil transformer has three nodes, the circuit breaker has two nodes, the ground knife has only one node, and the nodes of the two connected equipment have the same node number in the database. In this figure, the busbar of 500kV Nanning Station is 500kV#1 The connection with the knife switch 50211, the node number is 0001, the knife switch 50211 is connected to the circuit breaker 5021 and the ground knife 502117, the node number is 0002, the connection node number of the circuit breaker 5021 to the ground knife 502127 and the knife switch 50221 is 0003, and so on , all nodes have a node number.

[0015] At...

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Abstract

This invention relates to 500kv transducer station area control network topological system, which defines repeated joint number of each network device to judge whether each device is connected; device controller collects electricity network device status data to computer system to judge whether the device has electricity to determine whether to process remote operations.

Description

technical field [0001] The invention relates to a five-defense system for a 500kV substation inter-station network, in particular to a five-defense system for a tie line network topology between substations for regional control of a 500kV substation. Background technique [0002] The "five-proof" locking system is a control system used by the power system to prevent misoperation of switching off during power transmission and distribution in power plants and substations. Mainly limited by technical means: mistakenly entering the live interval; mistakenly pulling and closing the switch; pulling and closing the switch with load; [0003] The misoperation of the switch switch has repeatedly caused accidents in the power system over the years. It is one of the keys to the safety of power transformation and distribution, and it is also an important part of the power industry's determination to eliminate potential safety hazards. The power system ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J13/00
CPCY04S20/242Y02B70/3266Y02B70/30
Inventor 余建国牛保红尚春祝谦林志波唐广学张正祥郑望其杨启蓓廖式和陈海拔刘相枪陆岩罗永善曹玉文黄集贤岑圆琼陈忠伟邓厚兵田力李茂峰曾星宏
Owner CSG EHV POWER TRANSMISSION
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