CN109936129A - A kind of power failure and Accident Handling Method - Google Patents
A kind of power failure and Accident Handling Method Download PDFInfo
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- CN109936129A CN109936129A CN201811615481.1A CN201811615481A CN109936129A CN 109936129 A CN109936129 A CN 109936129A CN 201811615481 A CN201811615481 A CN 201811615481A CN 109936129 A CN109936129 A CN 109936129A
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- power failure
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- accident handling
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000010355 oscillation Effects 0.000 claims abstract description 15
- 230000001020 rhythmical effect Effects 0.000 claims abstract description 4
- 230000005284 excitation Effects 0.000 claims description 6
- 230000008030 elimination Effects 0.000 claims description 3
- 238000003379 elimination reaction Methods 0.000 claims description 3
- 238000007363 ring formation reaction Methods 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 238000010977 unit operation Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 1
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Abstract
The invention discloses a kind of power failure and Accident Handling Methods, comprising: (1) judges the voltage of generator, transformer and route, electric current, active and reactive indicates whether that generating period is substantially gone up and down；(2) judge headlamp whether with voltage fluctuation light and dark；(3) judge whether generator issues rhythmical ring sound；(4) judge whether generation is acted down to chaser for unit loss of synchronism protection；(5) it determines fault signature occur, starts processing routine.Power failure and accident treatment mode of the invention applies generator of the violent oscillation perhaps in power plant whether occurs whether lose the same period to occur to realize processing so that power plant is always maintained at safe and stable operating status if violent oscillation or generator lose the same period rapidly if electric system for detecting electric system in power plant.
Description
Technical field
The present invention relates to technical field of electric power, especially a kind of power failure and Accident Handling Method.
Background technique
As intelligentized demand is increasing, and various electric appliances are flooded with people's lives to living by people.And these are electric
Device is due to using different principles, so that the load of single characteristic present in script electric system also becomes to be enriched,
Whether load in nature or equal compared with the past realizes the variation of matter in the quantity of load.
And these are loaded so that the electric system of script becomes increasingly complex, as a result result in the obvious of buterfly effect plus
Play, a very small problem would potentially result in the collapse of whole system.Therefore, it timely finds the problem and realizes that processing is current
Electric system technical problem urgently to be resolved.
Summary of the invention
Therefore, it in view of the above-mentioned problems, the present invention provides a kind of power failure and Accident Handling Method, applies and is generating electricity
For detecting whether the generator whether electric system occurs in violent oscillation or power plant loses the same period in factory, if electric
Violent oscillation or generator occur for Force system lose the same period then to realize processing rapidly so that power plant is always maintained at safety, steady
Fixed operating status.
In order to achieve the above object, the invention proposes a kind of power failure and Accident Handling Methods, which is characterized in that
It applies in power plant for detecting whether the generator whether electric system occurs in violent oscillation or power plant loses
The same period, if electric system occur if violent oscillation or generator lose the same period to realize processing rapidly so that power plant always
Keep safe and stable operating status, the power failure and Accident Handling Method the following steps are included:
(1) judge the voltage of generator, transformer and route, electric current, active and reactive indicate whether that generating period substantially rises
Drop, if it is goes to step (2), otherwise circulation step (1)；
(2) judge headlamp whether with voltage fluctuation light and dark, if it is go to step (3), otherwise return to step
(1)；
(3) judge whether generator issues rhythmical ring sound, if it is go to step (4), otherwise return to step (1)；
(4) judge whether generation movement down to chaser, if it is goes to step (5), otherwise returns to step for unit loss of synchronism protection
(1)；
(5) it determines fault signature occur, starts processing routine.
The power failure and Accident Handling Method, also meet the following conditions: the step (5) specifically include with
Lower step:
(a) AVC is immediately exited from, increases exciting current manually, makes full use of the accident overload ability of generator, is gradually increased and is
Voltage unite up to threshold limit value, whether fault signature described in real-time judge disappears in the process, terminates if disappearing, no
Then go to step (b)；
(b) judge the change direction of real-time frequency, if change direction is upward, i.e., frequency increases, and reduce rapidly generator has
Function power output, until oscillation disappears, but frequency must not be lower than 49.5Hz；If change direction is downward, i.e., frequency reduces, and makes full use of
Spare capacity and accident overload capacity increase the active power output of generator, until oscillation elimination or frequency back to normal；
(c) judge whether the fault signature disappears, terminate if disappearing, otherwise go to step (d)；
(d) generated power power output is reduced, increases excitation, so that generator is dragged in synchronization；
(e) judge whether to restore synchronous operation and loss of synchronism protection is not operating, if it is off-the-line generating set and in time to scheduling
Report information is issued, if otherwise restoring unit operation in the trouble-free situation of excitation system；
(f) judge whether the fault signature disappears, terminate if disappearing, otherwise go to step (g)；
(g) implement through same period cyclization, a predetermined time judges whether the fault signature disappears after this, ties if disappearing
Otherwise beam issues request processing information to scheduling.
The power failure and Accident Handling Method, also meet the following conditions: ensureing and do not understand at implementation steps (5)
Arrange any unit.
The power failure and Accident Handling Method, also meet the following conditions: the predetermined time is 3 to 4 minutes.
The power failure and Accident Handling Method, also meet the following conditions: the request processing information passes through nothing
Gauze network is issued.
The power failure and Accident Handling Method, also meet the following conditions: the wireless network be 3G, 4G,
WIFI etc..
The power failure and Accident Handling Method, also meet the following conditions: the normal frequency is 50Hz.
Detailed description of the invention
Fig. 1 is the flow chart of power failure and Accident Handling Method.
Specific embodiment
Referring to Figure 1.
A kind of power failure and Accident Handling Method, which is characterized in that apply in power plant for detecting power train
Whether the generator whether system occurs in violent oscillation or power plant loses the same period, if violent vibration occurs for electric system
Swing or generator lose the same period then realize rapidly processing so that power plant is always maintained at safe and stable operating status, it is described
Power failure and Accident Handling Method the following steps are included:
(1) judge the voltage of generator, transformer and route, electric current, active and reactive indicate whether that generating period substantially rises
Drop, if it is goes to step (2), otherwise circulation step (1)；
(2) judge headlamp whether with voltage fluctuation light and dark, if it is go to step (3), otherwise return to step
(1)；
(3) judge whether generator issues rhythmical ring sound, if it is go to step (4), otherwise return to step (1)；
(4) judge whether generation movement down to chaser, if it is goes to step (5), otherwise returns to step for unit loss of synchronism protection
(1)；
(5) it determines fault signature occur, starts processing routine.
The power failure and Accident Handling Method, also meet the following conditions: the step (5) specifically include with
Lower step:
(a) AVC is immediately exited from, increases exciting current manually, makes full use of the accident overload ability of generator, is gradually increased and is
Voltage unite up to threshold limit value, whether fault signature described in real-time judge disappears in the process, terminates if disappearing, no
Then go to step (b)；
(b) judge the change direction of real-time frequency, if change direction is upward, i.e., frequency increases, and reduce rapidly generator has
Function power output, until oscillation disappears, but frequency must not be lower than 49.5Hz；If change direction is downward, i.e., frequency reduces, and makes full use of
Spare capacity and accident overload capacity increase the active power output of generator, until oscillation elimination or frequency back to normal；
(c) judge whether the fault signature disappears, terminate if disappearing, otherwise go to step (d)；
(d) generated power power output is reduced, increases excitation, so that generator is dragged in synchronization；
(e) judge whether to restore synchronous operation and loss of synchronism protection is not operating, if it is off-the-line generating set and in time to scheduling
Report information is issued, if otherwise restoring unit operation in the trouble-free situation of excitation system；
(f) judge whether the fault signature disappears, terminate if disappearing, otherwise go to step (g)；
(g) implement through same period cyclization, a predetermined time judges whether the fault signature disappears after this, ties if disappearing
Otherwise beam issues request processing information to scheduling.
Not any unit of off-the-line is ensured at implementation steps (5).
The predetermined time is 3 to 4 minutes.
The request processing information is issued by wireless network.
The wireless network is 3G, 4G, WIFI etc..
The normal frequency is 50Hz.
It should be noted that the above content is combine specific embodiment made for the present invention further specifically
It is bright, and it cannot be said that a specific embodiment of the invention is only limitted to this, under above-mentioned guidance of the invention, those skilled in the art can
To carry out various improvement and deformations on the basis of the above embodiments, and these are improved or deformation falls in protection model of the invention
In enclosing.
Claims (7)
1. a kind of power failure and Accident Handling Method, which is characterized in that apply in power plant for detecting electric system
Whether the generator whether occurred in violent oscillation or power plant loses the same period, if violent oscillation occurs for electric system
Or generator lose the same period then rapidly realize processing so that power plant is always maintained at safe and stable operating status, the electricity
Power failure and Accident Handling Method the following steps are included:
(1) judge the voltage of generator, transformer and route, electric current, active and reactive indicate whether that generating period substantially rises
Drop, if it is goes to step (2), otherwise circulation step (1)；
(2) judge headlamp whether with voltage fluctuation light and dark, if it is go to step (3), otherwise return to step
(1)；
(3) judge whether generator issues rhythmical ring sound, if it is go to step (4), otherwise return to step (1)；
(4) judge whether generation movement down to chaser, if it is goes to step (5), otherwise returns to step for unit loss of synchronism protection
(1)；
(5) it determines fault signature occur, starts processing routine.
2. a kind of power failure according to claim 2 and Accident Handling Method, which is characterized in that the step (5)
Specifically includes the following steps:
(a) AVC is immediately exited from, increases exciting current manually, makes full use of the accident overload ability of generator, is gradually increased and is
Voltage unite up to threshold limit value, whether fault signature described in real-time judge disappears in the process, terminates if disappearing, no
Then go to step (b)；
(b) judge the change direction of real-time frequency, if change direction is upward, i.e., frequency increases, and reduce rapidly generator has
Function power output, until oscillation disappears, but frequency must not be lower than 49.5Hz；If change direction is downward, i.e., frequency reduces, and makes full use of
Spare capacity and accident overload capacity increase the active power output of generator, until oscillation elimination or frequency back to normal；
(c) judge whether the fault signature disappears, terminate if disappearing, otherwise go to step (d)；
(d) generated power power output is reduced, increases excitation, so that generator is dragged in synchronization；
(e) judge whether to restore synchronous operation and loss of synchronism protection is not operating, if it is off-the-line generating set and in time to scheduling
Report information is issued, if otherwise restoring unit operation in the trouble-free situation of excitation system；
(f) judge whether the fault signature disappears, terminate if disappearing, otherwise go to step (g)；
(g) implement through same period cyclization, a predetermined time judges whether the fault signature disappears after this, ties if disappearing
Otherwise beam issues request processing information to scheduling.
3. a kind of power failure according to claim 2 and Accident Handling Method, which is characterized in that in implementation steps
(5) not any unit of off-the-line is ensured when.
4. a kind of power failure according to claim 3 and Accident Handling Method, which is characterized in that the predetermined time
It is 3 to 4 minutes.
5. a kind of power failure according to claim 4 and Accident Handling Method, which is characterized in that the request processing
Information is issued by wireless network.
6. a kind of power failure according to claim 5 and Accident Handling Method, which is characterized in that the wireless network
For 3G, 4G, WIFI etc..
7. a kind of power failure according to claim 6 and Accident Handling Method, which is characterized in that the normal frequency
For 50Hz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811615481.1A CN109936129B (en) | 2019-03-19 | 2019-03-19 | Power failure and accident handling method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811615481.1A CN109936129B (en) | 2019-03-19 | 2019-03-19 | Power failure and accident handling method |
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| CN109936129A true CN109936129A (en) | 2019-06-25 |
| CN109936129B CN109936129B (en) | 2020-08-07 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101741099A (en) * | 2010-01-15 | 2010-06-16 | 国网电力科学研究院 | Method for preventing false tripping of electric system out-of-step separating device in symmetrical fault |
| CN105529704A (en) * | 2016-02-22 | 2016-04-27 | 东北大学 | Power grid out-of-step disconnecting control system and method |
-
2019
- 2019-03-19 CN CN201811615481.1A patent/CN109936129B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101741099A (en) * | 2010-01-15 | 2010-06-16 | 国网电力科学研究院 | Method for preventing false tripping of electric system out-of-step separating device in symmetrical fault |
| CN105529704A (en) * | 2016-02-22 | 2016-04-27 | 东北大学 | Power grid out-of-step disconnecting control system and method |
Non-Patent Citations (2)
| Title |
|---|
| 王为国 等: "关于电厂AVC的若干技术问题", 《湖北电力》 * |
| 胡本哲: "《电力生产过程》", 31 December 1983, 水利电力出版社 * |
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| CN109936129B (en) | 2020-08-07 |
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Address after: Building 1, No. 35 Xiushan Road, Economic Development Zone, Gaochun District, Nanjing City, Jiangsu Province, 211300 Patentee after: Jiangsu Xunhui Technology Co.,Ltd. Address before: No. 8, Huashan Road, Gaochun Economic Development Zone, Nanjing City, Jiangsu Province, 211300 Patentee before: Jiangsu Xunhui Technology Co.,Ltd. |