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A comprehensive automatic substation system

A comprehensive automation and substation technology, applied to AC networks with different sources of the same frequency, etc., can solve the problems of grid island operation and disappearance, and achieve the effect of improving safety and stability, saving costs, and meeting the requirements of modern control operation.

Active Publication Date: 2017-03-08
SHANGHAI MUNICIPAL ELECTRIC POWER CO
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  • Claims
  • Application Information

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Problems solved by technology

[0002] The power grid operates as a single network operation. In order to ensure the stable operation of the substation, the outlet switch hard node of the substation is used to jump the relevant feeders. After the feeder trips, all the power sources of the feeders will disappear.
[0003] The existing substation system is prone to grid island operation

Method used

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  • A comprehensive automatic substation system
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Embodiment Construction

[0030] Hereinafter, in conjunction with the accompanying drawings, a preferred specific embodiment is described in detail to further illustrate the present invention.

[0031] Such as figure 1 with figure 2 As shown, a comprehensive automated substation system includes: 220 kV high-voltage line 1; two main transformers 2 (No. 1 main transformer and No. 2 main transformer), the high-voltage ends of which are respectively connected to 220 kV high-voltage line 1, after decompression , The low-voltage end outputs 110 kV power; the 110 kV bus 3 is connected to the low voltage ends of the two main transformers 2 through the main transformer switch; the small power line 4, whose circuit is connected to the 110 kV bus 3; more Two incoming lines 5 are connected to the 220 kV high-voltage line 1; two outgoing lines 6 are respectively connected to the 220-kV high-voltage line 1 through outlet switches (SF6 circuit breakers.); a stability control device 7; wherein, the stability control devi...

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Abstract

The invention discloses an integrated automatic substation system which comprises a 220KV high-voltage wire, two main transformers, a 110KV bus, a small power line, a stabilizing control device and a controller, wherein high-voltage ends of the two main transformers are respectively connected with the 220KV high-voltage wire, and a 110KV power supply is output from low-voltage ends of the transformers after step-down; the 110KV bus is connected with the low-voltage ends of the two main transformers through a main transformer switch; the small power line is in circuit connection with a 10KV bus; multiple inlet wires are connected with the 220KV high-voltage wire; two outlet wires are respectively connected with the 220KV high-voltage wire through a wire outlet switch; the stabilizing control device comprises multiple acquisition modules and controllers; the multiple acquisition modules are used for acquiring analog quantity and switching value of each electric power circuit; the controller is used for processing the analog quantity and the switching value of each electric power circuit and judging whether the two main transformers are subjected to tripping operation. According to the integrated automatic substation system, the operating stability of the power grid is improved, and normal life electricity of residents is guaranteed.

Description

Technical field [0001] The invention relates to the field of electric power automation control, in particular to a comprehensive automatic substation system. Background technique [0002] The grid operation is a single grid operation. In order to ensure the stable operation of the substation, the relevant feeders are combined to jump through the hard node of the outlet switch of the substation. After the feeder trips, all the power supplies of the feeders will disappear. [0003] The existing substation system is prone to island operation of the power grid. Summary of the invention [0004] The purpose of the present invention is to provide a comprehensive automated substation system, which improves the stability of the power grid operation and ensures the normal electricity consumption of residents. [0005] In order to achieve the above objective, the present invention is achieved through the following technical solutions: a comprehensive automated substation system, which is chara...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/04
Inventor 孙立明骆亮王沁宓佳璟蒋文荣张真元陶勇黄明海李春杰奚曹明朱佳杰史勇杰杨永华张晋
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO
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