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Power plant FCB black start system and method based on stability control system

A stable control system and black start technology, applied in electrical components, circuit devices, AC network circuits, etc., can solve the problems of lack of water and electricity resources and large investment, reduce economic losses and social impacts, and expand and shorten the demand for electricity. The effect of recovery time

Pending Publication Date: 2022-01-28
SHENZHEN POWER SUPPLY BUREAU
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

For modern urban power grids, the general hydropower resources are relatively scarce, and the choice of self-starting gas turbines as the black start source requires a large investment

Method used

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  • Power plant FCB black start system and method based on stability control system
  • Power plant FCB black start system and method based on stability control system
  • Power plant FCB black start system and method based on stability control system

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Embodiment Construction

[0047] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0048] like figure 2As shown, it is a schematic diagram of an embodiment of a power plant FCB black start system based on a stability control system provided by the present invention. In this embodiment, the system includes: the side of the small unit connected to the external grid through a tie line; the island side transformer close to the side of the small unit and the large transformer close to the external grid are arranged on the tie line. system side transformer; the island side transformer is respectively connected to the small unit side and the stability control system, one end of the large system side transformer is connected to the external power grid, and the other end of the large system side transformer passes through the The communication channel ...

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Abstract

The invention provides a power plant FCB black start system and method based on a stability control system. The system comprises a small unit side which is connected with an external power grid through a tie line; the island side mutual inductor is respectively connected with the small unit side and the stability control system, and the large system side mutual inductor is connected with the external power grid and the stability control system; the stability control system is used for measuring parameter data of the external power grid and the small unit side and detecting the measured parameter data to judge whether FCB black start needs to be carried out or not; the island side mutual inductor is used for measuring parameter data of the small unit side; the large system side mutual inductor is used for measuring parameter data of the external power grid; and the tie line is used for cutting off contact interaction between the external power grid and the small unit side when it is judged that FCB black start needs to be carried out. According to the system, the FCB start criterion is provided for judging the external power grid system fault, the system operation reliability is improved, and meanwhile frequent actions of the FCB system are avoided.

Description

technical field [0001] The invention relates to the technical field of power plant FCB black start, in particular to a power plant FCB black start system and method based on a stability control system. Background technique [0002] In recent years, with the continuous increase of the scale and capacity of power grids in various regions, the connection between systems has become increasingly frequent, and the safe and stable operation of the power system has been subjected to a huge test. Although the grid structure and safety and stability of large cities have been greatly improved compared to the past, serious failures may still trigger a chain reaction of the system, eventually leading to large-scale power outages. For example, major accidents such as the blackout in the United States and Canada in August 2003 sounded the alarm to electric power workers, making people fully aware of the diversity and unpredictability of the causes of blackouts. Once an accident occurs, ad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J3/38
CPCH02J3/001H02J3/381H02J3/388
Inventor 何晓峰陈择栖程维杰刘金生马伟哲程韧俐陈洪云翁毅选卢艺张炀
Owner SHENZHEN POWER SUPPLY BUREAU
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