CN102087343A - Method for rapidly monitoring fault of sampling device - Google Patents
Method for rapidly monitoring fault of sampling device Download PDFInfo
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- CN102087343A CN102087343A CN2009102272601A CN200910227260A CN102087343A CN 102087343 A CN102087343 A CN 102087343A CN 2009102272601 A CN2009102272601 A CN 2009102272601A CN 200910227260 A CN200910227260 A CN 200910227260A CN 102087343 A CN102087343 A CN 102087343A
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- fault
- sampling device
- power
- power grid
- sampling apparatus
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- 238000005070 sampling Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000012544 monitoring process Methods 0.000 title claims abstract description 8
- 238000004891 communication Methods 0.000 claims abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000010248 power generation Methods 0.000 abstract 1
- 230000011664 signaling Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002596 correlated effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
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Abstract
The invention discloses a method for rapidly monitoring a fault of a sampling device. When that values of adjacent two power grid voltage signals are the same or the difference of adjacent two power grid signals exceeds standard difference in a time interval is detected, and a communication system is not failed, so that the sampling device is determined to have a fault, and the fault of the sampling device is monitored. The method can make scheduling personnel and automatic maintenance personnel know the fault of the sampling device and perform related maintenance, influence on power grid load prediction and power generation and supply balance estimation is avoided, and a power grid accident due to error judgment of the scheduling personnel on the power grid operating conditions can be avoided.
Description
Technical field
The present invention relates to power dispatching automation field in the electric system, relate in particular to the method for a kind of fast monitored to the sampling apparatus fault.
Background technology
At present, development along with automatic technology, the remote signalling of transformer station, telesignalisation get more and more, even reach up to ten thousand, electric network composition becomes increasingly complex simultaneously, transformer station is more and more, the information that the dispatching automation main website accepts becomes geometric growth, it is exhaustive to cause the automatic operating maintainer can not accomplish when scheduling automatic main station is maked an inspection tour, the management and running personnel are because the various and more consideration to power grid security and economical operation of despatching work, can not relate to all the supervision of operation of power networks state.Sampling apparatus is mainly gathered electric current, the information of voltage of the operating electrical network relevant device of real-time power network, and calculate the active power and the reactive power information of electrical network, offer the dispatching of power netwoks personnel timely, be the safe and stable operation establish a firm foundation of its Real-Time Scheduling and electrical network.And size of current in the electrical network, voltage height are along with the variation of power system operating mode, Changes in weather and real-time change.General when the sampling apparatus fault, telesignalisation will occur stagnating or reduce to zero, and automatic operating maintainer or yardman may monitor less than this signal in several hours even several days.The long-time fault of sampling apparatus is not only estimated to impact to a network load prediction and a power supply balance, and the dispatcher is disconnected to the erroneous judgement of operation of power networks situation in serious also may causing, and then causes power grid accident.
Summary of the invention
The purpose of this invention is to provide a kind of can fast monitored to the method for sampling apparatus fault, avoid judging by accident broken hair is made trouble so.
The present invention adopts following technical proposals: a kind of fast monitored is to the method for sampling apparatus fault, by the value that detects adjacent two power network signals in a time interval equate or the difference of adjacent two power network monitoring signals when the above numerical value of standard difference, and during the communication system non-fault, promptly be judged as the sampling apparatus fault, realize monitoring the sampling apparatus fault.
Described power network signal is curtage or power signal, perhaps any combination of electric current, voltage and power signal.
The described time interval is five minutes.
The characteristics that fast monitored of the present invention changes by the operation of telesignalisations such as detection of grid electric current, voltage, power to the method for sampling apparatus fault are judged whether fault of sampling apparatus, recognize sampling apparatus fault and the maintenance job of being correlated with in the time of can making dispatcher and automated maintenance personnel, can and not send out the power supply balance and estimate to impact, and can avoid the dispatcher to judge by accident disconnected and power grid accident that cause the operation of power networks situation to the network load prediction.
Description of drawings
Fig. 1 is a principle flow chart of the present invention;
Embodiment
A kind of fast monitored of the present invention is by the dispatching automation main website characteristics that operation changes according to line voltage to the method for sampling apparatus fault, comes fast monitored to arrive the fault of sampling apparatus by fast detecting power network current, voltage, variable power situation.As shown in Figure 1: method of the present invention may further comprise the steps:
(1) detector switch, disconnecting link disconnected closed position signalling and voltage, current value, if switch, disconnecting link at closing position and voltage or current value non-zero, then carry out next step, if switch, disconnecting link are zero at open position and voltage or current value, stops monitoring;
(2) gather this signal and be stored in the storer, and carry out next step as initialize signal;
(2) time-delay is five minutes, carries out next step;
(3) the disconnected position signalling that closes of detector switch, disconnecting link if disconnect, then stops monitoring; If closed, then carry out next step;
(4) detect electric current, voltage, power signal, carry out next step;
(5) judge collect whether electric current, voltage, power signal equate with storage signal or the difference of signal value whether more than 30%: if not, then this acquired signal is stored to storer and covers original signal, be back to the five minutes sections of delaying time; If then carry out next step;
(6) judge whether fault of communication system: if then check communication port; If not, then be judged as the sampling apparatus fault, carry out next step;
(7) by the dispatching automation main website telesignalisation is pushed out to main website screen foreground, realizes this monitoring.
In addition, the power network signal of detection can also be the combination in any of electric current, voltage, power signal, for example detects electric current and voltage signal, or electric current and power signal etc.
Claims (3)
1. a fast monitored is to the method for sampling apparatus fault, it is characterized in that: by the value that detects adjacent two power network signals in a time interval equate or the difference of adjacent two power network signals when the above numerical value of standard difference, and during the communication system non-fault, promptly be judged as the sampling apparatus fault, realize monitoring the sampling apparatus fault.
2. fast monitored according to claim 1 is to the method for sampling apparatus fault, and it is characterized in that: described power network signal is curtage or power signal, perhaps any combination of electric current, voltage and power signal.
3. fast monitored according to claim 1 and 2 is to the method for sampling apparatus fault, and it is characterized in that: the described time interval is five minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910227260 CN102087343B (en) | 2009-12-02 | 2009-12-02 | Method for rapidly monitoring fault of sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910227260 CN102087343B (en) | 2009-12-02 | 2009-12-02 | Method for rapidly monitoring fault of sampling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102087343A true CN102087343A (en) | 2011-06-08 |
| CN102087343B CN102087343B (en) | 2013-04-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910227260 Expired - Fee Related CN102087343B (en) | 2009-12-02 | 2009-12-02 | Method for rapidly monitoring fault of sampling device |
Country Status (1)
| Country | Link |
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| CN (1) | CN102087343B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1480739A (en) * | 2002-09-03 | 2004-03-10 | 朱思一 | Equipment for detecting and arlarming fault of distribution network in low voltage of electric power |
| CN2758789Y (en) * | 2004-12-28 | 2006-02-15 | 中达电通股份有限公司 | Fault monitoring circuit for Hall current sensor |
| CN101295177A (en) * | 2007-04-23 | 2008-10-29 | 三菱电机株式会社 | Method and system for detecting changes in sensor sample streams |
| US7519506B2 (en) * | 2002-11-06 | 2009-04-14 | Antonio Trias | System and method for monitoring and managing electrical power transmission and distribution networks |
-
2009
- 2009-12-02 CN CN 200910227260 patent/CN102087343B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1480739A (en) * | 2002-09-03 | 2004-03-10 | 朱思一 | Equipment for detecting and arlarming fault of distribution network in low voltage of electric power |
| US7519506B2 (en) * | 2002-11-06 | 2009-04-14 | Antonio Trias | System and method for monitoring and managing electrical power transmission and distribution networks |
| CN2758789Y (en) * | 2004-12-28 | 2006-02-15 | 中达电通股份有限公司 | Fault monitoring circuit for Hall current sensor |
| CN101295177A (en) * | 2007-04-23 | 2008-10-29 | 三菱电机株式会社 | Method and system for detecting changes in sensor sample streams |
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| Publication number | Publication date |
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| CN102087343B (en) | 2013-04-17 |
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| C14 | Grant of patent or utility model | ||
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Owner name: STATE ELECTRIC NET CROP. Free format text: FORMER OWNER: XUCHANG POWER SUPPLY COMPANY, STATE GRID HUNAN ELECTRIC POWER COMPANY Effective date: 20131203 Owner name: XUCHANG POWER SUPPLY COMPANY, STATE GRID HUNAN ELE Effective date: 20131203 |
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Owner name: XUCHANG POWER SUPPLY COMPANY, STATE GRID HUNAN ELE Free format text: FORMER NAME: XUCHANG POWER SUPPLY COMPANY OF HENAN ELECTRIC POWER COMPANY;XJ ELECTRIC CO., LTD. |
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Free format text: CORRECT: ADDRESS; FROM: 461000 XUCHANG, HENAN PROVINCE TO: 100031 XICHENG, BEIJING |
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Address after: No. 288 Xuchang City, Henan province 461000 City Road Patentee after: XUCHANG POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER Co. Address before: No. 288 Xuchang City, Henan province 461000 City Road Patentee before: Xuchang Power Supply Company of Henan Electric Power Co. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20131203 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Patentee after: State Grid Corporation of China Patentee after: XUCHANG POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER Co. Address before: No. 288 Xuchang City, Henan province 461000 City Road Patentee before: XUCHANG POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER Co. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20211202 |
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| CF01 | Termination of patent right due to non-payment of annual fee |