CN105262224A - Power grid fault real-time monitoring and protection system and working method thereof - Google Patents

Power grid fault real-time monitoring and protection system and working method thereof Download PDF

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Publication number
CN105262224A
CN105262224A CN201510745847.7A CN201510745847A CN105262224A CN 105262224 A CN105262224 A CN 105262224A CN 201510745847 A CN201510745847 A CN 201510745847A CN 105262224 A CN105262224 A CN 105262224A
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China
Prior art keywords
intelligent terminal
electric network
master control
control system
real
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CN201510745847.7A
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CN105262224B (en
Inventor
周巍岩
徐刚
孙鹏
宋坤
徐玉璞
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State Grid Corp of China SGCC
Jining Power Supply Co of State Grid Shandong Electric Power Co Ltd
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State Grid Corp of China SGCC
Jining Power Supply Co of State Grid Shandong Electric Power Co Ltd
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Abstract

The invention discloses a power grid fault real-time monitoring and protection system and a working method thereof. The system comprises a main power grid information collection system which is used for collecting power grid data and transmitting the power grid data to a main control system through a partitioning network communication system; an intelligent terminal which is used for collecting the operation state and fault information of a partitioned bus circuit which the intelligent terminal is located to the main control system; and the main control system which is used for receiving the power grid data transmitted by the main power grid information collection system and the intelligent terminal, carrying out static and transient real-time analysis, forming a control command, and enabling the control command to be transmitted to a power grid protection system and the intelligent terminal for corresponding protection operation.

Description

A kind of electric network fault Real-Time Monitoring and protection system and method for work thereof
Technical field
The invention belongs to electric network fault field, particularly relate to a kind of electric network fault Real-Time Monitoring and protection system and method for work thereof.
Background technology
Electric network protection and fault early warning system; important function is served at auxiliary dispatching person's decision-making level; be the indispensable instrument in control centre, its major function is made up of basic function and application function two parts, specifically comprises data acquisition and supervision, network analysis, action and the function such as to issue.But its main application model or dispatcher ask just to perform, and lay particular emphasis on research mode, and lack from motion tracking operation of power networks state, automatic diagnosis electrical network problem, automatically provide the function of control strategy and operational mode adjustable strategies.
In addition, existing system can only carry out static analysis, lack on-line transient stability, voltage stabilization and dynamic stability analysis function, whole system is intelligent not, for ensureing necessary security margin, in schedule mode evaluation work, usually adopt extreme manner to study, the on-road efficiency of electrical network can not be played to greatest extent.As can be seen here; there is numerous shortcoming in existing electric network protection system; powered ratio along with electrical network, the continuous increase by capacitance; and the change of power system operating mode; the particularly enforcement of subregion districting operation, the potential threat of electric power netting safe running strengthens day by day, only relies on traditional protection system more difficult; this just has higher requirement to traditional protection system, therefore in the urgent need to providing a kind of electric network fault Real-Time Monitoring and protection system.
Summary of the invention
In order to solve the shortcoming of prior art, the invention provides a kind of electric network fault Real-Time Monitoring and protection system and method for work thereof.This electric network fault Real-Time Monitoring and protection system are united for substation transformer secondary side power grid security fault; by partition network communication system net control; realize electric network fault Real-Time Monitoring and defencive function; can ensure that electrical network runs reliably; meet the requirement of power system security protection, guarantee the safety of electric power real-time closed-loop supervisory control system and dispatching data network.
For achieving the above object, the present invention is by the following technical solutions:
A kind of electric network fault Real-Time Monitoring and protection system, comprising:
Main electric network information acquisition system, it is for gathering electric network data and being uploaded to master control system by partition network communication system;
Intelligent terminal, described intelligent terminal and master control system are bi-directionally connected, and described intelligent terminal is for gathering the running status of subregion two buss lines belonging to intelligent terminal and fault message and being uploaded to master control system;
Master control system; it is for the electric network data that receives main electric network information acquisition system and intelligent terminal and send and carry out static state and transient state real-time analysis; formation control order, and control command is assigned respectively to electric network protection system and intelligent terminal and carry out corresponding protection act.
Described intelligent terminal is installed in transformer station's branch road outgoing line side.
Control command is handed down to electric network protection system by partition network communication system and carries out corresponding protection act by described master control system.
Control command is handed down to intelligent terminal by described master control system, after the control command that intelligent terminal for reception master control system issues, determines cutting load object in electrical network and corresponding control command is handed down to relevant protecting control unit.
A method of work for electric network fault Real-Time Monitoring and protection system, comprising:
Step (1): main electric network information acquisition system gathers electric network data and is uploaded to master control system by partition network communication system;
Step (2): intelligent terminal gathers the running status of subregion two buss lines belonging to intelligent terminal and fault message and is uploaded to master control system;
Step (3): master control system receives electric network data that main electric network information acquisition system and intelligent terminal send and carries out static state and transient state real-time analysis; formation control order, and control command is assigned respectively to electric network protection system and intelligent terminal and carry out corresponding protection act.
In described step (3), control command is handed down to electric network protection system by partition network communication system and carries out corresponding protection act by master control system.
In described step (3), control command is handed down to intelligent terminal by master control system, after the control command that intelligent terminal for reception master control system issues, determines cutting load object in electrical network and corresponding control command is handed down to relevant protecting control unit.
This method of work also comprises, and intelligent terminal also detects the load of transformer station belonging to it, and in real time the load detected is uploaded to master control system.
This method of work also comprises, and master control system selects optimum cutting load combination according to the load received, and performs cutting load to corresponding transformer station.
This method of work also comprises, and the reality in transformer station belonging to it cutting load amount and cutting load action executing state can be uploaded to master control system and monitor in real time by intelligent terminal.
Beneficial effect of the present invention is:
(1) electric network fault Real-Time Monitoring of the present invention and protection system, by data analysis and subregion Communication Control network, achieve electric network fault Real-Time Monitoring and defencive function, ensure that electrical network runs reliably, meet the requirement of power system security protection, ensure that the safety of electric power real-time closed-loop supervisory control system and dispatching data network;
(2) master control system of the present invention with establish two-way connection between intelligent terminal; electrical network real-time running data is used to provide the whole network voltage failure and protection information; realize the security and stability control of electrical network; according to operation of power networks situation, protective device is controlled, ensure power network safety operation.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Wherein, 1, main electric network information acquisition system; 2, master control system; 3, partition network communication system; 4, electric network protection system; 5, the first intelligent terminal; 6, the second intelligent terminal; 7, the 3rd intelligent terminal; 8, the 4th intelligent terminal; 9, the 5th intelligent terminal.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention will be further described:
Fig. 1 is overall structure schematic diagram of the present invention, and in FIG, electric network fault Real-Time Monitoring of the present invention and protection system, comprise main electric network information acquisition system 1, intelligent terminal and master control system 2.
Wherein, main electric network information acquisition system 1, it is for gathering electric network data and being uploaded to master control system 2 by partition network communication system 3.
Intelligent terminal, itself and master control system are bi-directionally connected.Intelligent terminal is for gathering the running status of subregion two buss lines belonging to intelligent terminal and fault message and being uploaded to master control system 2.
Wherein, intelligent terminal is installed in each transformer station branch road outgoing line side.Intelligent terminal in the present embodiment is with the first intelligent terminal 5, second intelligent terminal 6, the 3rd intelligent terminal 7, the 4th intelligent terminal 8 and the 5th intelligent terminal 9, and these five intelligent terminals are example.
First intelligent terminal 5, second intelligent terminal 6, the 3rd intelligent terminal 7, the 4th intelligent terminal 8 and the 5th intelligent terminal 9, these five intelligent terminals are installed on corresponding transformer station branch road outgoing line side respectively.
Master control system 2; it is for the electric network data that receives main electric network information acquisition system and intelligent terminal and send and carry out static state and transient state real-time analysis; formation control order, and control command is assigned respectively to electric network protection system 4 and intelligent terminal and carry out corresponding protection act.
Wherein, control command is handed down to electric network protection system 4 by partition network communication system 3 and carries out corresponding protection act by master control system 2.
Control command is handed down to intelligent terminal by master control system 2, after the control command that intelligent terminal for reception master control system issues, determines cutting load object in electrical network and corresponding control command is handed down to relevant protecting control unit.
The method of work of electric network fault Real-Time Monitoring of the present invention and protection system, comprising:
Step (1): main electric network information acquisition system gathers electric network data and is uploaded to master control system by partition network communication system;
Step (2): intelligent terminal gathers the running status of subregion two buss lines belonging to intelligent terminal and fault message and is uploaded to master control system;
Step (3): master control system receives electric network data that main electric network information acquisition system and intelligent terminal send and carries out static state and transient state real-time analysis; formation control order, and control command is assigned respectively to electric network protection system and intelligent terminal and carry out corresponding protection act.
In described step (3), control command is handed down to electric network protection system by partition network communication system and carries out corresponding protection act by master control system.
Further; in step (3); control command is handed down to intelligent terminal by master control system, after the control command that intelligent terminal for reception master control system issues, determines cutting load object in electrical network and corresponding control command is handed down to relevant protecting control unit.
This method of work also comprises, and intelligent terminal also detects the load of transformer station belonging to it, and in real time the load detected is uploaded to master control system.
This method of work also comprises, and master control system selects optimum cutting load combination according to the load received, and performs cutting load to corresponding transformer station.
This method of work also comprises, and the reality in transformer station belonging to it cutting load amount and cutting load action executing state can be uploaded to master control system and monitor in real time by intelligent terminal.
By reference to the accompanying drawings the specific embodiment of the present invention is described although above-mentioned; but not limiting the scope of the invention; one of ordinary skill in the art should be understood that; on the basis of technical scheme of the present invention, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection scope of the present invention.

Claims (10)

1. electric network fault Real-Time Monitoring and a protection system, is characterized in that, comprising:
Main electric network information acquisition system, it is for gathering electric network data and being uploaded to master control system by partition network communication system;
Intelligent terminal, described intelligent terminal and master control system are bi-directionally connected, and described intelligent terminal is for gathering the running status of subregion two buss lines belonging to intelligent terminal and fault message and being uploaded to master control system;
Master control system; it is for the electric network data that receives main electric network information acquisition system and intelligent terminal and send and carry out static state and transient state real-time analysis; formation control order, and control command is assigned respectively to electric network protection system and intelligent terminal and carry out corresponding protection act.
2. a kind of electric network fault Real-Time Monitoring as claimed in claim 1 and protection system, is characterized in that, described intelligent terminal is installed in transformer station's branch road outgoing line side.
3. a kind of electric network fault Real-Time Monitoring as claimed in claim 1 and protection system, is characterized in that, control command is handed down to electric network protection system by partition network communication system and carries out corresponding protection act by described master control system.
4. a kind of electric network fault Real-Time Monitoring as claimed in claim 1 and protection system; it is characterized in that; control command is handed down to intelligent terminal by described master control system; after the control command that intelligent terminal for reception master control system issues, determine cutting load object in electrical network and corresponding control command is handed down to relevant protecting control unit.
5. a method of work for electric network fault Real-Time Monitoring as claimed in claim 1 and protection system, is characterized in that, comprising:
Step (1): main electric network information acquisition system gathers electric network data and is uploaded to master control system by partition network communication system;
Step (2): intelligent terminal gathers the running status of subregion two buss lines belonging to intelligent terminal and fault message and is uploaded to master control system;
Step (3): master control system receives electric network data that main electric network information acquisition system and intelligent terminal send and carries out static state and transient state real-time analysis; formation control order, and control command is assigned respectively to electric network protection system and intelligent terminal and carry out corresponding protection act.
6. the method for work of electric network fault Real-Time Monitoring as claimed in claim 5 and protection system; it is characterized in that; in described step (3), control command is handed down to electric network protection system by partition network communication system and carries out corresponding protection act by master control system.
7. the method for work of electric network fault Real-Time Monitoring as claimed in claim 5 and protection system; it is characterized in that; in described step (3); control command is handed down to intelligent terminal by master control system; after the control command that intelligent terminal for reception master control system issues, determine cutting load object in electrical network and corresponding control command is handed down to relevant protecting control unit.
8. the method for work of electric network fault Real-Time Monitoring as claimed in claim 5 and protection system, it is characterized in that, this method of work also comprises, and intelligent terminal also detects the load of transformer station belonging to it, and in real time the load detected is uploaded to master control system.
9. the method for work of electric network fault Real-Time Monitoring as claimed in claim 8 and protection system, it is characterized in that, this method of work also comprises, and master control system selects optimum cutting load combination according to the load received, and performs cutting load to corresponding transformer station.
10. the method for work of electric network fault Real-Time Monitoring as claimed in claim 5 and protection system; it is characterized in that; this method of work also comprises, and the reality in transformer station belonging to it cutting load amount and cutting load action executing state can be uploaded to master control system and monitor in real time by intelligent terminal.
CN201510745847.7A 2015-11-04 2015-11-04 A kind of monitoring in real time of electric network fault and protection system and its method of work Active CN105262224B (en)

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Cited By (1)

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CN109610976A (en) * 2018-12-27 2019-04-12 苏州浪潮智能软件有限公司 A kind of guard method of split type cash side cabinet

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Publication number Priority date Publication date Assignee Title
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CN109610976A (en) * 2018-12-27 2019-04-12 苏州浪潮智能软件有限公司 A kind of guard method of split type cash side cabinet

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