CN108169588A - Nuclear power station protects the antijamming capability detection method and system of cabinet - Google Patents
Nuclear power station protects the antijamming capability detection method and system of cabinet Download PDFInfo
- Publication number
- CN108169588A CN108169588A CN201711278081.1A CN201711278081A CN108169588A CN 108169588 A CN108169588 A CN 108169588A CN 201711278081 A CN201711278081 A CN 201711278081A CN 108169588 A CN108169588 A CN 108169588A
- Authority
- CN
- China
- Prior art keywords
- signal
- cable
- cabinet
- variable quantity
- interference source
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The present invention relates to the technical field of million kilowatt nuclear power station Nuclear Instrument system, the antijamming capability detection method and system, this method for disclosing a kind of nuclear power station protection cabinet include：Interference source is provided；The power cable of the interference source is arranged on to the predetermined position of the signal cable in cabinet；Start the interference source, and detect the variable quantity of the mean temperature signal of overtemperature overpower channel；Judge whether the variable quantity of the mean temperature signal is consistent with the protection allowance of temperature, if so, being anti-interference threshold distance by the distance calibration of presently described power cable and the signal cable；Otherwise, the distance of signal cable in the power cable and cabinet of the interference source is adjusted, until the variable quantity of the mean temperature signal is consistent with the protection allowance of the temperature.The antijamming capability detection method of above-mentioned nuclear power station protection cabinet, has demarcated the power cable of interference source and the anti-interference threshold distance of signal cable.
Description
Technical field
The present invention relates to the technical fields of million kilowatt nuclear power station Nuclear Instrument system, are protected more particularly to a kind of nuclear power station
Protect the antijamming capability detection method and system of cabinet.
Background technology
In nuclear power plant, SIP (Process Instrumentation System, process instrument system) protection cabinets have
When can because the interference of various signals cause protection misoperation, such as enclosure top to cross the power cable of signal generator,
Power cable connection DNL (Electrical Building Normal Lighting, electrical building normal lighting system) electricity
Source.When DNL electrical source of power load variations, interference is produced to the weak electric signal in SIP protection cabinets, SIP is caused to protect machine
The mean temperature output signal fluctuation detected in cabinet, and overtemperature prote is caused to act.
Be found that in traditional SIP protections cabinet maintenance process SIP protection cabinets there are antijamming capability it is insufficient the problem of,
But the problem of protecting cabinet antijamming capability insufficient SIP lacks corresponding inspection scheme and acceptance criteria.
Invention content
Based on this, it is necessary to the problem of protecting the inspection scheme and acceptance criteria of cabinet antijamming capability for shortage SIP,
A kind of the antijamming capability detection method and system of nuclear power station protection cabinet are provided.
A kind of the antijamming capability detection method and system of nuclear power station protection cabinet, including：
Interference source is provided；
The power cable of the interference source is arranged on to the predetermined position of the signal cable in cabinet；
Start the interference source, and detect the variable quantity of the mean temperature signal of overtemperature overpower channel；
Judge whether the variable quantity of the mean temperature signal is consistent with the protection allowance of temperature, if so, by current institute
The distance calibration for stating power cable and the signal cable is anti-interference threshold distance；
Otherwise, the distance of signal cable in the power cable and cabinet of the interference source is adjusted, until the mean temperature
The variable quantity of signal is consistent with the protection allowance of the temperature.
The step of the variable quantity of the mean temperature signal of the detection overtemperature overpower channel in one of the embodiments,
Suddenly, including：
The variable quantity of the mean temperature signal is simulated using lead-lag dynamic module.
The computational methods of the protection allowance of the temperature in one of the embodiments, specifically include：
Overtemperature prote definite value during using the overtemperature overpower path computation unit Operation at full power state；
Cold and hot section of temperature difference during using the overtemperature overpower channel measurement unit full power state；
It is poor that the overtemperature prote definite value and the cold and hot section of temperature difference are made, and obtains the protection allowance of the temperature.
In one of the embodiments, in the power cable and cabinet of the adjustment interference source signal cable away from
From, until the variable quantity step consistent with the protection allowance of temperature, including：
If the variable quantity of the mean temperature signal is more than the protection allowance of the temperature, increase the dynamic of the interference source
The distance of power cable and signal cable in cabinet；
If the variable quantity of the mean temperature signal is less than the protection allowance of the temperature, reduce the dynamic of the interference source
The distance of power cable and signal cable in cabinet.
In one of the embodiments, in the power cable and cabinet of the adjustment interference source signal cable away from
From until after the variable quantity step consistent with the protection allowance of the temperature of the mean temperature signal, further including：
It is anti-interference threshold distance by the distance calibration of the power cable and the signal cable；
The protection allowance is demarcated as anti-interference threshold signal.
The predetermined position is the top of the cabinet in one of the embodiments,.
In one of the embodiments, after the step of offer interference source, further include：
The connection of the interference source and power supply is disposed in contact with undesirable state.
The interference source is ramp signal generator in one of the embodiments,.
A kind of antijamming capability detecting system of nuclear power station protection cabinet, including：
The power cable of the interference source for providing interference source, and is arranged on the signal in cabinet by setup module
The predetermined position of cable；
Detection module, for detecting the variable quantity of the mean temperature signal of overtemperature overpower channel；
Control module, for judging whether the variable quantity of the mean temperature signal is consistent with the protection allowance of temperature, if
It is then anti-interference threshold distance by the distance calibration of presently described power cable and the signal cable to be；
Otherwise, the distance of signal cable in the power cable and cabinet of the interference source is adjusted, until the mean temperature
The variable quantity of signal is consistent with the protection allowance of the temperature.
The detection module includes in one of the embodiments,：
Lead-lag dynamic module, for simulating the variable quantity of the mean temperature signal of the overtemperature overpower channel.
The antijamming capability detection method of above-mentioned nuclear power station protection cabinet, by overtemperature overpower Air conduct measurement by interference source
The variable quantity of caused mean temperature signal, and the protection allowance of the variable quantity of mean temperature signal and temperature is compared,
So as to demarcate the anti-interference threshold distance of the power cable of interference source and signal cable.
Description of the drawings
Fig. 1 is that the nuclear power station of an embodiment protects the antijamming capability detection method flow chart of cabinet；
Fig. 2 is the lead-lag simulation model schematic diagram of an embodiment；
Fig. 3 is the one of which realization method flow chart of step S400 in Fig. 1；
Fig. 4 is the lead-lag simulation result curve synoptic diagram of an embodiment；
Fig. 5 is the one of which realization method flow chart of step S500b in Fig. 1；
Fig. 6 is that the nuclear power station of another embodiment protects the antijamming capability detection method flow chart of cabinet；
Fig. 7 is that the nuclear power station of an embodiment protects the antijamming capability detecting system schematic diagram of cabinet.
Specific embodiment
Fig. 1 be an embodiment nuclear power station protect cabinet antijamming capability detection method flow chart, this method include with
Lower step：
Step S100：Interference source is provided.
Step S200：The power cable of interference source is arranged on to the predetermined position of the signal cable in cabinet.
Step S300：Start the interference source, and detect the variable quantity of the mean temperature signal of overtemperature overpower channel.
Step S400：Judge whether the variable quantity of mean temperature signal is consistent with the protection allowance of temperature, if so, performing
The calibration process of step S500a；Otherwise the adjustment process of step S500b is performed.
Step S500a：It is anti-interference threshold distance by the distance calibration of current power cable and the signal cable.
Step S500b：Adjust interference source power cable and cabinet in signal cable distance, and repeat step S300 with
Step S400, until the variable quantity of mean temperature signal is consistent with the protection allowance of temperature.
The antijamming capability detection method of above-mentioned nuclear power station protection cabinet, by overtemperature overpower Air conduct measurement by interference source
The variable quantity of caused mean temperature signal, and the protection allowance of the variable quantity of mean temperature signal and temperature is compared,
So as to demarcate the anti-interference threshold distance of the power cable of interference source and signal cable.
Specifically, the step of variable quantity of mean temperature signal of overtemperature overpower channel is detected in step S300, including：
Using the variable quantity of lead-lag dynamic module simulation mean temperature signal.
In the present embodiment, on the one hand since the sample rate of KIT and KDO (detection data acquisition system) is relatively low, for short
The fluctuation of the mean temperature signal of time fails effectively to collect；On the other hand due to the curve of output of lead-lag dynamic module
Exist with amplitude, frequency and the form of input signal fluctuation compared with Important Relations.Therefore lead-lag is set in overtemperature overpower channel
Dynamic module, and using the form of emulation, the variable quantity (fluctuation signal) of mean temperature signal is analyzed.
Specifically, lead-lag dynamic module is used to detect the change rate signal in overtemperature overpower channel.Such as Fig. 2 institutes
Show, which is the emulation schematic diagram of lead-lag dynamic module.Wherein, the mean temperature signal of overtemperature overpower channel is by receiving
Device 10 inputs, and after preset non-linear lead-lag function processing module 20 is handled, obtains the variation of mean temperature signal
Rate shows the change curve of mean temperature signal finally by oscillograph 30, so as to obtain the variable quantity of mean temperature signal.
In the present embodiment, preset non-linear lead-lag function setup is：Leading time T1=30s, lag time T2
=4s.
Specifically, referring to Fig. 3, the computational methods of the protection allowance of temperature specifically include：
Step S410：Overtemperature prote during using the overtemperature overpower path computation unit Operation at full power state is determined
Value.
There is departure nucleate boiling in cooling agent in order to prevent and fuel pellet melts, and needs to control the temperature of fuel pellet.
And overtemperature prote definite value Δ T realizes the control to fuel pellet temperature for preventing departure nucleate boiling.
Specifically, the calculation formula of overtemperature prote definite value Δ T is as follows：
In formula, Δ T is overtemperature prote definite value；TavgFor primary Ioops cooling agent hot arc temperature and the mean temperature of cold section of temperature
(primary Ioops mean temperature)；P is voltage-stablizer pressure (primary Ioops pressure)；Ω primary Ioops cooling agent main pump rotating speeds；Δ φ is axial
Power deviation；κ6、κ3、κ5、κ4For each coefficient for influencing item；τ1、τ3、τ4For time constant；T1For bias temperature；PnomFor specified pressure
Power；TnomFor the coolant average temperature under declared working condition；ΩnomThe rated speed of primary Ioops cooling agent main pump；S is complex variable.
In one embodiment, Pnom=1.55 × 107pa；Tnom=310 DEG C；Ωnom=1800r/min.
Step S420：Cold and hot section of temperature difference during using the overtemperature overpower channel measurement unit full power state；
It measures the temperature difference of primary Ioops cooling agent hot arc temperature and cold section of temperature in real time by overtemperature overpower channel, is denoted as
ΔT1。
Step S430：Overtemperature prote definite value and cold and hot section of temperature difference work is poor, obtain the protection allowance of temperature.
Overtemperature prote definite value Δ T is obtained by step S410 and cold and hot section of temperature difference T is obtained by step S4201.It will
Overtemperature prote definite value Δ T and cold and hot section of temperature difference T1Obtain the protection allowance of temperature.
Specifically, during the normal Operation at full power of unit, overtemperature prote definite value Δ T is in 140%FP (Full Power, Man Gong
Rate) left and right, cold and hot section of temperature difference T1Measured value in 100%FP or so.Therefore the protection allowance of temperature obtained is 40%FP
Left and right.
Specifically, referring to Fig. 4, which is that the variable quantity of the mean temperature signal in step S300 is more than in step S400
Protect analogue simulation figure during allowance.Wherein, horizontal linear L1 is the protection allowance in step S400, by 40%FP through emulating mould
Plan is converted to electric signal 80mv；Curve L2 is the variable quantity of the mean temperature signal in step S300.As it can be seen that since scene is interfered
The interference signal real-time change in source leads to the variable quantity of mean temperature signal also real-time change.When interference signal is bigger, put down
The variable quantity L2 of equal temperature signal acts (i.e. reactor shutdown) higher than protection allowance L1 (80mv) so as to cause overtemperature prote.
Therefore, interference signal need to be made just to be avoided that overtemperature prote acts less than 80mv using protection allowance 80mv as interference threshold signal.
Optional interference threshold signal may be arranged as the arbitrary value in 0mv to 80mv.Specifically, interference threshold signal is set as
40mv。
Specifically, as shown in figure 5, the one of which realization method of step S500b, including：
Step S510b：If the variable quantity of mean temperature signal is more than the protection allowance of temperature, increase the power of interference source
The distance of cable and signal cable in cabinet；
Step S520b：If the variable quantity of mean temperature signal is less than the protection allowance of temperature, reduce the power of interference source
The distance of cable and signal cable in cabinet.
In the present embodiment, since interference signal caused by the power cable of interference source is mainly electromagnetic interference signal,
The influence of the interference signal is shown as：The distance of signal cable is bigger in the power cable and cabinet of interference source, mean temperature letter
Number variable quantity it is bigger.It therefore, can be average to realize by adjusting the distance of the power cable and cabinet signal cable of interference source
The variable quantity of temperature signal coincide with protection allowance.When the variable quantity of mean temperature signal coincide with protection allowance, average temperature
The variable quantity of degree signal has reached the threshold value of overtemperature prote action, while interference signal has also reached interference threshold signal.Therefore,
The distance of power cable and signal cable at this time, the interference threshold distance as interference cable.
Further, it as shown in fig. 6, after step S500a, further includes：
Step S600：Protection allowance is demarcated as anti-interference threshold signal.
In the present embodiment, when protection allowance is unit normal Operation at full power, the protection allowance of primary Ioops mean temperature.
When the mean temperature undulate quantity of primary Ioops is more than protection allowance, overtemperature prote will be caused to act.Therefore, interference threshold signal is
For the permitted maximum fluctuation amount of mean temperature signal.
Specifically, anti-interference threshold distance is 600 millimeters；Anti-interference threshold signal is 80 millivolts.
In the present embodiment, to further improve the sensitivity of cabinet antijamming capability, interference threshold signal can be demarcated as
40 millivolts, the arbitrary value that can also be demarcated as in 0 millivolt to 80 millivolts is not especially limited here.
Specifically, the predetermined position in step S200 is the top of cabinet.
In the present embodiment, enclosure top be signal sensitizing range, the influence for the signal that is easily interfered.Therefore, by interference source
Power cable be set to enclosure top, make cabinet by larger interference signal, and then cabinet is in the ring of larger interference signal
Anti-interference capability testing is carried out under border, obtains safe interference immunity parameter.
Further, it after the step of interference source is provided, further includes：
The connection of interference source and power supply is disposed in contact with undesirable state.
In the present embodiment, by the connection of interference source and power supply be disposed in contact with undesirable state be designed to provide it is larger
Interference signal.During the test, signal cable in the power cable and cabinet of interference source need to be increased to reduce interference signal
Distance, therefore the interference threshold distance finally demarcated becomes larger, so as to avoid unit in actual moving process because interference source with
Electrical power contacts are bad and overtemperature prote is caused to act.
Specifically, interference source is ramp signal generator.Ramp signal generator is internally provided with Transformer Rectifier device, because
This can power on when ramp signal generator connects power supply by power cable and larger interference letter is generated during dead electricity
Number, so as to influence the variable quantity of mean temperature signal in overtemperature overpower channel.
Specifically, interference source can also be the cabinet door limit switch of protection cabinet, and interference cable at this time is limited for cabinet door
Switching cable.Due to cabinet door limit switch cable and signal cable mixing cabling in cabinet, and the built-in line of cabinet door limit switch
Core is there are antenna effect, so as to introduce interference.Further, cabinet door switching cable can be extracted out from cable tray, far from letter
Number cable, so as to exclusive PCR.
Specifically, interference source can also be the shielding line of protection cabinet.When shielding line and ground wire short circuit or it is close when, pass through
The fluctuation of overtemperature overpower Air conduct measurement to mean temperature signal is larger.Therefore, the shielding line for protecting cabinet is disengaged with ground wire,
It can exclude the interference signal.
Fig. 7 is that the nuclear power station of an embodiment protects the antijamming capability detecting system of cabinet, including：
The power cable of interference source for providing interference source, and is arranged on the signal wire in cabinet by setup module 100
The predetermined position of cable.
Detection module 200, for detecting the variable quantity of the mean temperature signal of overtemperature overpower channel；
Control module 300, for judging whether the variable quantity of mean temperature signal is consistent with the protection allowance of temperature, if
It is then anti-interference threshold distance by the distance calibration of current power cable and signal cable to be；
Otherwise, the distance of signal cable in the power cable and cabinet of interference source is adjusted, until the change of mean temperature signal
Change amount is consistent with the protection allowance of the temperature.
In the present embodiment, using the operating mode of analogue system simulation overtemperature overpower channel.Wherein, operating mode expires including unit
Power operation operating mode, steady state condition and transient condition.Specifically, analogue system is the test software write by LabVIEW, core
The heart is to utilize the states such as steady state condition, dynamic operation condition and the accident conditions of simulated program emulation overtemperature overpower channel.
Specifically, control module 300 is made of types of functionality fastener, such as：Function generator, adder, threshold value comparison
Device etc..According to each function fastener, control module 300 can realize the calculating of the variable quantity to protection allowance, mean temperature, and will meter
Result is calculated to show (analogue simulation figure) by patterned form.
Specifically, detection module 100 includes：
Lead-lag dynamic module, for simulating the variable quantity of the mean temperature signal of overtemperature overpower channel.
As shown in Fig. 2, the figure is the emulation schematic diagram of lead-lag dynamic module.Wherein, overtemperature overpower channel is flat
Equal temperature signal is inputted by receiver 10, after preset non-linear lead-lag function processing module 20 is handled, is put down
The change rate of equal temperature signal shows the change curve of mean temperature signal finally by oscillograph 30, so as to obtain average temperature
Spend the variable quantity of signal.
In the present embodiment, preset non-linear lead-lag function setup is：Leading time T1=30s, lag time T2
=4s.
The antijamming capability detection method of above-mentioned nuclear power station protection cabinet, by overtemperature overpower Air conduct measurement by interference source
The variable quantity of caused mean temperature signal, and the protection allowance of the variable quantity of mean temperature signal and temperature is compared,
So as to demarcate the anti-interference threshold distance of the power cable of interference source and signal cable.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Embodiment described above only expresses the several embodiments of the present invention, and description is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that those of ordinary skill in the art are come
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Range.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of antijamming capability detection method of nuclear power station protection cabinet, including：
Interference source is provided；
The power cable of the interference source is arranged on to the predetermined position of the signal cable in cabinet；
Start the interference source, and detect the variable quantity of the mean temperature signal of overtemperature overpower channel；
Judge whether the variable quantity of the mean temperature signal is consistent with the protection allowance of temperature, if so, by presently described dynamic
The distance calibration of power cable and the signal cable is anti-interference threshold distance；
Otherwise, the distance of signal cable in the power cable and cabinet of the interference source is adjusted, until the mean temperature signal
Variable quantity it is consistent with the protection allowance of the temperature.
2. antijamming capability detection method according to claim 1, which is characterized in that the detection overtemperature overpower channel
Mean temperature signal variable quantity the step of, including：
The variable quantity of the mean temperature signal is simulated using lead-lag dynamic module.
3. antijamming capability detection method according to claim 1, which is characterized in that the meter of the protection allowance of the temperature
Calculation method, specifically includes：
Overtemperature prote definite value during using the overtemperature overpower path computation unit Operation at full power state；
Cold and hot section of temperature difference during using the overtemperature overpower channel measurement unit full power state；
It is poor that the overtemperature prote definite value and the cold and hot section of temperature difference are made, and obtains the protection allowance of the temperature.
4. antijamming capability detection method according to claim 1, which is characterized in that the adjustment interference source moves
The distance of power cable and signal cable in cabinet, until the variable quantity step consistent with the protection allowance of temperature, including：
If the variable quantity of the mean temperature signal is more than the protection allowance of the temperature, increase the power electric of the interference source
The distance of cable and signal cable in cabinet；
If the variable quantity of the mean temperature signal is less than the protection allowance of the temperature, reduce the power electric of the interference source
The distance of cable and signal cable in cabinet.
5. antijamming capability detection method according to claim 1, which is characterized in that described by presently described power cable
After the step of distance calibration with the signal cable is anti-interference threshold distance, further include：
The protection allowance is demarcated as anti-interference threshold signal.
6. antijamming capability detection method according to claim 1, which is characterized in that the predetermined position is the machine
The top of cabinet.
7. antijamming capability detection method according to claim 1, which is characterized in that it is described offer interference source the step of it
Afterwards, it further includes：
The connection of the interference source and power supply is disposed in contact with undesirable state.
8. antijamming capability detection method according to claim 1, which is characterized in that the interference source is sent out for ramp signal
Raw device.
9. a kind of antijamming capability detecting system of nuclear power station protection cabinet, including：
The power cable of the interference source for providing interference source, and is arranged on the signal cable in cabinet by setup module
Predetermined position；
Detection module, for detecting the variable quantity of the mean temperature signal of overtemperature overpower channel；
Control module, for judging whether the variable quantity of the mean temperature signal is consistent with the protection allowance of temperature, if so,
It is anti-interference threshold distance by the distance calibration of presently described power cable and the signal cable；
Otherwise, the distance of signal cable in the power cable and cabinet of the interference source is adjusted, until the mean temperature signal
Variable quantity it is consistent with the protection allowance of the temperature.
10. antijamming capability detecting system according to claim 9, which is characterized in that the detection module includes：
Lead-lag dynamic module, for simulating the variable quantity of the mean temperature signal of the overtemperature overpower channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711278081.1A CN108169588B (en) | 2017-12-06 | 2017-12-06 | Anti-interference capability detection method and system for nuclear power station protection cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711278081.1A CN108169588B (en) | 2017-12-06 | 2017-12-06 | Anti-interference capability detection method and system for nuclear power station protection cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108169588A true CN108169588A (en) | 2018-06-15 |
| CN108169588B CN108169588B (en) | 2020-01-31 |
Family
ID=62525404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711278081.1A Active CN108169588B (en) | 2017-12-06 | 2017-12-06 | Anti-interference capability detection method and system for nuclear power station protection cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108169588B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508070A (en) * | 2011-11-03 | 2012-06-20 | 国网电力科学研究院 | Method for ensuring radio inference of transmission line |
| CN104808083A (en) * | 2015-04-03 | 2015-07-29 | 中广核核电运营有限公司 | Nuclear power station anti-electromagnetic interference testing system |
| CN106646025A (en) * | 2016-11-04 | 2017-05-10 | 国网山东省电力公司济南市长清区供电公司 | High voltage distribution line electromagnetic interference determinator |
| US20170134241A1 (en) * | 2015-11-09 | 2017-05-11 | Kookmin University Industry Academy Cooperation Foundation | Device and method for configuring multiple interferers |
| CN106685548A (en) * | 2016-12-19 | 2017-05-17 | 岭澳核电有限公司 | Nuclear power plant interference testing method and apparatus |
| CN106872831A (en) * | 2017-03-27 | 2017-06-20 | 北京空间飞行器总体设计部 | Interference source determines method in highly sensitive antenna of receiving device band in microwave load satellite |
-
2017
- 2017-12-06 CN CN201711278081.1A patent/CN108169588B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508070A (en) * | 2011-11-03 | 2012-06-20 | 国网电力科学研究院 | Method for ensuring radio inference of transmission line |
| CN104808083A (en) * | 2015-04-03 | 2015-07-29 | 中广核核电运营有限公司 | Nuclear power station anti-electromagnetic interference testing system |
| US20170134241A1 (en) * | 2015-11-09 | 2017-05-11 | Kookmin University Industry Academy Cooperation Foundation | Device and method for configuring multiple interferers |
| CN106646025A (en) * | 2016-11-04 | 2017-05-10 | 国网山东省电力公司济南市长清区供电公司 | High voltage distribution line electromagnetic interference determinator |
| CN106685548A (en) * | 2016-12-19 | 2017-05-17 | 岭澳核电有限公司 | Nuclear power plant interference testing method and apparatus |
| CN106872831A (en) * | 2017-03-27 | 2017-06-20 | 北京空间飞行器总体设计部 | Interference source determines method in highly sensitive antenna of receiving device band in microwave load satellite |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108169588B (en) | 2020-01-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Tate et al. | Line outage detection using phasor angle measurements | |
| CN100477437C (en) | Residual current device | |
| Ameli et al. | Development of a cyber-resilient line current differential relay | |
| CN109284933B (en) | Electronic transformer state evaluation system and method based on mathematical statistics | |
| Hasani et al. | Fast and secure detection technique for loss of field occurrence in synchronous generators | |
| CN103248012A (en) | Thermal overload protection method and device with complete thermal memory function for AC motor | |
| Gupta et al. | Islanding detection scheme for converter‐based DGs with nearly zero non‐detectable zone | |
| CN102306508A (en) | Reactivity instrument for critical monitoring and critical extrapolation of reactor | |
| Yao et al. | Unknown input observer-based series DC arc fault detection in DC microgrids | |
| Chávarro-Barrera et al. | An adaptive approach for dynamic load modeling in microgrids | |
| US8472156B2 (en) | Method and device for supervising the sensitivity of a protection function | |
| Camarillo-Penaranda et al. | An approach for out-of-step protection based on swing center voltage estimation and analytic geometry parameters | |
| Liu et al. | Hessian locally linear embedding of PMU data for efficient fault detection in power systems | |
| US9075099B2 (en) | Method for adaptation of ground fault detection | |
| CN111693924B (en) | System and method for detecting monitoring performance of voltage transformer on-line monitoring device | |
| CN108169588A (en) | Nuclear power station protects the antijamming capability detection method and system of cabinet | |
| CN117554717A (en) | Electromagnetic interference testing system and method for key equipment of train | |
| JP5931143B2 (en) | Isolated operation detection function evaluation test equipment | |
| CN203688678U (en) | De-excitation resistor testing system | |
| CN104977048A (en) | FCT automatic testing method for air conditioner | |
| CN113777452B (en) | DC system grounding test device and method for voltage self-adaptive station | |
| CN109599195A (en) | Monitoring system and monitoring method for primary Ioops cooling temperature Measurement channel | |
| CN103728584A (en) | Method and system for detecting intelligent ammeter magnetic disturbance | |
| CN108337759B (en) | Microwave oven power reduction rule development method, device and system | |
| CN203310967U (en) | Intelligent communication leakage switch detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |