CN109217232A - A kind of power system security control method - Google Patents
A kind of power system security control method Download PDFInfo
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- CN109217232A CN109217232A CN201811316683.6A CN201811316683A CN109217232A CN 109217232 A CN109217232 A CN 109217232A CN 201811316683 A CN201811316683 A CN 201811316683A CN 109217232 A CN109217232 A CN 109217232A
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- fault
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- triode
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
本发明公开了一种电力系统安全控制方法，包括以下步骤：A、传感器组采集电力系统的实时信息，采集的电力信息经过滤波降噪后传输至控制单元；B、控制单元将采集的电力信息发送至数据库单元中通过比较模块与预先设定的正常值进行比较；C、一旦采集到有任一数据异常，立即通过通信系统传输至后台监控中心发出报警信号，同时，向故障定位系统发出定位指令，对故障区域进行定位；D、同时，控制单元向电力控制执行机构发出断开指令，断开电力控制系统。本发明的控制方法操作简单，安全性高，能够实现对故障区域的快速定位，能够实现后台实时监控预警，提高了电力系统的安全性。
The invention discloses a power system safety control method, comprising the following steps: A. A sensor group collects real-time information of the power system, and the collected power information is filtered and noise-reduced and then transmitted to a control unit; B. The control unit stores the collected power information Send it to the database unit and compare it with the preset normal value through the comparison module; C. Once any abnormal data is collected, it is immediately transmitted to the background monitoring center through the communication system to send an alarm signal, and at the same time, the fault location system is sent to locate the location. order to locate the fault area; D. At the same time, the control unit sends a disconnection instruction to the power control actuator to disconnect the power control system. The control method of the invention has simple operation and high safety, can realize rapid positioning of the fault area, realize real-time monitoring and early warning in the background, and improve the safety of the power system.
Description
Technical field
The present invention relates to technical field of power systems, specially a kind of power system security control method.
Background technique
With the development of society and the progress of science and technology, people increasingly increase the concern of electric power, the reform of electric system
It deepens constantly and develops.The demand for development of " informationization, networking, intelligence, integrated " that national grid proposes, it is also exactly electric
The direction of power industrial development.Each power plant, substation, electric substation, operating office etc. are all passing through monitoring system to realize unmanned value
The management for the intelligent integration formula kept improves production efficiency and benefit.
As the core of power transmission and transformation, the intelligent development of substation is concerned.Instantly, conventional substation still accounts for very big
Ratio, therefore by conventional substation upgrading be Intelligent transformer station be trend of the times.Various states in substation
Whether can be realized mutual cooperation, unified linkage, centralized management, if can the state to each running equipment remotely monitored and
It realizes unattended and automatically controls, such as the target of automatic effectively fire extinguishing and intelligent substationization transformation.
The phenomenon that China controls electric system by artificial control mode at present also exists on a large scale, to cause
Not convenient and safe unified platform, is unable to real-time monitoring and controls the operation of equipment, occurs when equipment being caused to work wrong
Probability accidentally extremely increases.However Intelligent transformer station but will the information platform of real-time monitoring and control apply to entire system
Among the running of system, the integrated degree of electric system is strengthened.For traditional conventional substation equipment, novel intelligence
It is more powerful that substation equipment performance can be changed, it is also more excellent.Therefore, it is necessary to be carried out to some problems in terms of the relevant technologies
Research.
Summary of the invention
The purpose of the present invention is to provide a kind of power system security control methods, realize the intellectualized reconstruction of substation,
To solve the problem of that current electric power system control cannot achieve real time monitoring and early warning by artificially controlling from the background.
To achieve the above object, the present invention provides a kind of power system security control method, comprising the following steps:
A, the real time information of sensor group acquisition electric system, the power information of acquisition are transmitted to control after filtering noise reduction
Unit processed；
B, control unit by the power information of acquisition be sent in Database Unit by comparing module with it is preset
Normal value is compared；
C, once collecting any data exception, letter is sounded an alarm by communications system transmission to background monitoring center immediately
Number, meanwhile, positioning instruction is issued to fault location system, fault zone is positioned；
D, simultaneously, control unit issues open command to electric control actuator, disconnects electric control system.
Preferably, fault location system includes positioning unit, fault-signal Transmit-Receive Unit and multiple events in the step C
Hinder indicator, the multiple fault detector include Fisrt fault indicator, the second fault detector, third fault detector,
N fault detector, N are the integer greater than 3, the Fisrt fault indicator, the second fault detector, third indicating fault
Device, N fault detector connecting fault signal transmitting and receiving unit, the fault-signal Transmit-Receive Unit are connected by positioning unit and are controlled
Unit.
Preferably, noise reduction being filtered in the step A and using Dolby circuit, the Dolby circuit includes amplifier, triode
A, triode B, triode C, the amplifier anode input terminal are separately connected the one end capacitor A and the one end resistance F, and resistance F is another
End ground connection, the amplifier negative input ground connection, the amplifier out connection diode B anode, diode B cathode connect
The one end connecting resistance E, resistance E other end connecting triode C collector, the triode C emitter be separately connected the one end capacitor C and
The one end resistance D, the triode C base stage connect the one end resistance C, and the capacitor C other end connecting triode B collector is described
It is another that triode B emitter is separately connected diode A cathode, the one end capacitor B, the resistance C other end, the one end resistance B and capacitor A
End, the triode B base stage connect the one end capacitor B, and the capacitor B other end is separately connected diode A cathode, the resistance D other end, institute
State diode A anode connecting triode A emitter, the triode A collector connection resistance B other end and the one end resistance A, electricity
Hinder A other end ground connection.
Preferably, the sensor group include current sensor, voltage sensor, temperature sensor, short-circuit sensor and
Cut-off sensor.
Compared with prior art, innovation of the invention with have an advantage that:
1. control method of the invention is easy to operate, highly-safe, the quick positioning to fault zone can be realized, it can
It realizes backstage real time monitoring early warning, improves the safety of electric system.
2. the fault location system used can be accurately positioned and be indicated to failure, examined in time convenient for staff
It repairs, it is ensured that power grid operates normally.
3. the Dolby circuit that the present invention uses can be filtered the interference signal being entrained in transducing signal, avoid doing
It disturbs signal and interference is generated to the transducing signal of acquisition, to improve accuracy of identification.
Detailed description of the invention
Fig. 1 is a kind of system flow chart of power system security control method of the present invention；
Fig. 2 is a kind of fault location system functional block diagram of power system security control method of the present invention；
Fig. 3 is a kind of Dolby circuit schematic diagram of power system security control method of the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out specifically
It is bright.
Fig. 1-3 is please referred to, the present invention provides a kind of technical solution: a kind of power system security control method, including it is following
Step:
A, the real time information of sensor group acquisition electric system, the power information of acquisition are transmitted to control after filtering noise reduction
Unit processed；The sensor group includes current sensor, voltage sensor, temperature sensor, short-circuit sensor and open circuit sensing
Device；
B, control unit by the power information of acquisition be sent in Database Unit by comparing module with it is preset
Normal value is compared；
C, it once having collected any data exception, is issued alarm by communications system transmission to background monitoring center immediately
Signal, meanwhile, positioning instruction is issued to fault location system, fault zone is positioned；
D, simultaneously, control unit issues open command to electric control actuator, disconnects electric control system.
Fault location system includes that positioning unit (1), fault-signal Transmit-Receive Unit (2) and multiple failures refer in step C
Show that device, the multiple fault detector include Fisrt fault indicator (3), the second fault detector (4), third fault detector
(5), N fault detector, N are the integer greater than 3, the Fisrt fault indicator (3), the second fault detector (4), third
Fault detector (5), N fault detector connecting fault signal transmitting and receiving unit (2), the fault-signal Transmit-Receive Unit (2) are logical
Cross positioning unit (1) connection control unit (6).Fault-signal Transmit-Receive Unit receive fault-signal that fault detector is issued it
Afterwards, which is sent to positioning unit, positioning unit is according to the geographical location etc. in the fault-signal, combined data library
Data information is sent to background monitoring center by communication system after control unit is handled to determine position of failure point,
The fault location system that the present invention uses can be accurately positioned and indicate to failure, overhaul in time convenient for staff, really
Power grid is protected to operate normally.
Noise reduction is filtered in the present invention, in step A and uses Dolby circuit, and the Dolby circuit includes amplifier (7), triode
A (1d), triode B (2d), triode C (3d), amplifier (7) electrode input end be separately connected the one end (1b) capacitor A and
The one end resistance F (6a), resistance F (6a) other end ground connection, amplifier (7) the negative input ground connection, the amplifier (7) are defeated
Outlet connects diode B (2c) anode, and diode B (2c) cathode connects the one end resistance E (5a), the connection of resistance E (5a) other end
Triode C (3d) collector, triode C (3d) emitter are separately connected the one end (3b) capacitor C and the one end resistance D (4a),
Triode C (3d) base stage connects the one end resistance C (3a), capacitor C (3b) other end connecting triode B (2d) current collection
Pole, it is another that triode B (2d) emitter is separately connected diode A (1c) cathode, the one end capacitor B (2b), resistance C (3a)
End, the one end (2a) resistance B and capacitor A (1b) other end, triode B (2d) base stage connect the one end capacitor B (2b), capacitor B
(2b) other end is separately connected diode A (1c) cathode, resistance D (4a) other end, three poles of diode A (1c) the anode connection
Pipe A (1d) emitter, triode A (1d) collector connection resistance B (2a) other end and the one end resistance A (1a), resistance A
(1a) other end ground connection.Resistance C (3a), resistance F (6a), resistance E (5a), capacitor A (1b), diode B (2c), triode C
(3d) and amplifier (7) constitute a trapper, and it can be filtered the high-frequency noise in audio signal.Diode A
(1c), triode B (2d), capacitor B (2b), capacitor C (3b) and resistance D (4a) then form a barrier circuit, do not allow
High-frequency noise in transducing signal passes through, therefore the high-frequency noise in transducing signal, all by trap filters, the present invention uses
Dolby circuit the interference signal being entrained in transducing signal can be filtered, avoid interference signal from believing the sensing of acquisition
Number generate interference, to improve accuracy of identification.
In conclusion control method of the invention is easy to operate, and it is highly-safe, it can be realized to the quick fixed of fault zone
Position can be realized backstage real time monitoring early warning, improve the safety of electric system.
Finally it should be noted that: although an embodiment of the present invention has been shown and described, for the common of this field
For technical staff, it is possible to understand that can be carried out without departing from the principles and spirit of the present invention to these embodiments more
Kind change, modification, replacement and modification, the scope of the present invention is defined by the appended.
Claims (4)
1. a kind of power system security control method, it is characterized in that the following steps are included:
A, the real time information of sensor group acquisition electric system, it is single that the power information of acquisition is transmitted to control after filtering noise reduction
Member；
B, the power information of acquisition is sent in Database Unit by comparing module and preset normal by control unit
Value is compared；
C, once collecting any data exception, immediately by communications system transmission to background monitoring center signal an alert,
Meanwhile positioning instruction is issued to fault location system, fault zone is positioned；
D, simultaneously, control unit issues open command to electric control actuator, disconnects electric control system.
2. a kind of power system security control method according to claim 1, which is characterized in that failure in the step C of place
Positioning system includes that positioning unit (1), fault-signal Transmit-Receive Unit (2) and multiple fault detectors, the multiple failure refer to
Show that device includes Fisrt fault indicator (3), the second fault detector (4), third fault detector (5), N fault detector, N
For the integer greater than 3, the Fisrt fault indicator (3), the second fault detector (4), third fault detector (5), N event
Hinder indicator connecting fault signal transmitting and receiving unit (2), the fault-signal Transmit-Receive Unit (2) passes through positioning unit (1) connection control
Unit (6) processed.
3. a kind of power system security control method according to claim 1, which is characterized in that filtered in the step A
Noise reduction uses Dolby circuit, and the Dolby circuit includes amplifier (7), triode A (1d), triode B (2d), triode C
(3d), amplifier (7) electrode input end are separately connected the one end (1b) capacitor A and the one end resistance F (6a), and resistance F (6a) is another
One end ground connection, amplifier (7) the negative input ground connection, amplifier (7) output end connection diode B (2c) anode,
Diode B (2c) cathode connection one end resistance E (5a), resistance E (5a) other end connecting triode C (3d) collector, described three
Pole pipe C (3d) emitter is separately connected the one end (3b) capacitor C and the one end resistance D (4a), triode C (3d) the base stage connection electricity
Hinder the one end C (3a), capacitor C (3b) other end connecting triode B (2d) collector, triode B (2d) emitter point
It Lian Jie not diode A (1c) cathode, the one end capacitor B (2b), resistance C (3a) other end, the one end (2a) resistance B and capacitor A (1b)
The other end, triode B (2d) base stage connect the one end capacitor B (2b), and capacitor B (2b) other end is separately connected diode A
(1c) cathode, resistance D (4a) other end, positive connecting triode A (1d) emitter of the diode A (1c), the triode A
(1d) collector connects resistance B (2a) other end and the one end resistance A (1a), resistance A (1a) other end ground connection.
4. a kind of power system security control method according to claim 1, which is characterized in that the sensor group includes
Current sensor, voltage sensor, temperature sensor, short-circuit sensor and cut-off sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811316683.6A CN109217232A (en) | 2018-11-07 | 2018-11-07 | A kind of power system security control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811316683.6A CN109217232A (en) | 2018-11-07 | 2018-11-07 | A kind of power system security control method |
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| Publication Number | Publication Date |
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| CN109217232A true CN109217232A (en) | 2019-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811316683.6A Pending CN109217232A (en) | 2018-11-07 | 2018-11-07 | A kind of power system security control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111325963A (en) * | 2020-03-06 | 2020-06-23 | 江苏特建技术股份有限公司 | Electric power operation and maintenance system based on linkage control and cloud platform |
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2018
- 2018-11-07 CN CN201811316683.6A patent/CN109217232A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111325963A (en) * | 2020-03-06 | 2020-06-23 | 江苏特建技术股份有限公司 | Electric power operation and maintenance system based on linkage control and cloud platform |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20190115 |
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| WD01 | Invention patent application deemed withdrawn after publication |