CN105548856B - Brushless excitation pattern generating set rotating diode detecting system and method - Google Patents
Brushless excitation pattern generating set rotating diode detecting system and method Download PDFInfo
- Publication number
- CN105548856B CN105548856B CN201511003528.5A CN201511003528A CN105548856B CN 105548856 B CN105548856 B CN 105548856B CN 201511003528 A CN201511003528 A CN 201511003528A CN 105548856 B CN105548856 B CN 105548856B
- Authority
- CN
- China
- Prior art keywords
- search coil
- signal
- electric current
- rotating diode
- axis notch
- 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.)
- Active
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
- G01R31/26—Testing of individual semiconductor devices
- G01R31/2601—Apparatus or methods therefor
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
The invention discloses a kind of brushless excitation pattern generating set rotating diode detecting systems, including big axis notch search coil, first electric current senses search coil, second electric current senses search coil and state detection module, wherein, big axis notch search coil, first electric current senses search coil and the second electric current sensing search coil is respectively arranged at the periphery of generating set stationary part, state detection module is used for according to big axis notch search coil, first electric current senses search coil and the inductive signal detection rotating diode branch of the second electric current sensing search coil whether there is failure, and finding that there are alerted during failure.The invention also discloses a kind of brushless excitation pattern generating set rotating diode detection methods.The present invention does not need to add sensor, and applied to rotary rectifier mode of excitation generating set, the position of search coil depends on engine block structure, it can be achieved that positioning, alarm, failure and other expanding functions.
Description
Technical field
The present invention relates to technical field of electric power more particularly to a kind of brushless excitation pattern generating set rotating diode to detect
System and method.
Background technology
Early stage domestic most nuclear powers and Large-scale fire-electricity unit are mostly using brushless excitation mode, and rotary rectifier part is as nothing
The indispensable ring of brush excitation generator group, the quality of rotating diode element is to generating set safe and stable operation to pass
It is important.However, rotating diode element it is practical normal work when be in high speed rotation state, it is difficult to detect.
At present, there are mainly three types of the common detection methods of rotating diode element：Indicator light frequency detecting method, harmonic wave armature
Method and direct probe method.Indicator light frequency detecting method shines because of the fuse that operator on duty is needed to be equipped with to each diode of field observation
Tubulose state, it is maintainable low to determine rotating diode damaged condition, it is general seldom to use.Harmonic wave armature method is according to harmonic wave electricity
Pivot reaction principle, compare the harmonic component that is generated in Exciting Windings for Transverse Differential Protection during rotating diode element fault with it is normal when harmonic wave point
Amount, to determine diode damaged condition, it is impossible to failure rotating diode element is accurately positioned, and be not suitable for branch it is excessive or
The excessive generating set of the number of phases, has some limitations.The defects of direct probe method is need to set sensor, and and generator
Structure is related to the position of sensor, and there are certain technology requirements in mounting arrangements.
Invention content
The technical problems to be solved by the invention are, provide a kind of brushless excitation pattern generating set rotating diode inspection
Examining system and method, are improved direct probe method, do not need to add sensor, generate electricity applied to rotary rectifier mode of excitation
Unit, the position of search coil depends on engine block structure, it can be achieved that positioning, alarm, failure and other expansion work(
Energy.
In order to solve the above technical problem, the present invention provides a kind of inspections of brushless excitation pattern generating set rotating diode
Examining system, including big axis notch search coil, the first electric current sensing search coil, the second electric current sensing search coil and state inspection
Module is surveyed, wherein, the big axis notch search coil is set to the periphery of generating set stationary part, for being revolved in big axis notch
When going to the big axis notch search coil corresponding position, inductive signal is generated；The first electric current sensing search coil and institute
The periphery that the second electric current sensing search coil is respectively arranged at generating set stationary part is stated, and positioned at the big axis notch detection
The both sides of coil, the first electric current sensing search coil and second electric current sense search coil into fixed angle, are used for
Inductive signal is generated when the branch of rotating diode rotates to corresponding position；The state detection module connects the big axis and lacks
Mouth search coil, first electric current sensing search coil and second electric current sensing search coil, for according to described big
The inductive signal inspection of axis notch search coil, first electric current sensing search coil and second electric current sensing search coil
Rotating diode branch is surveyed with the presence or absence of failure, and is finding that there are alerted during failure.
Further, host computer user-centered interface is further included, is connect with the state detection module, for failure rotation two
The positioning of pole pipe branch, I sections of alarms and II segment faults show and limit excitation system output function.
Further, the first electric current sensing search coil is located at 9 ° clockwise of the big axis notch search coil
Place, the second electric current sensing search coil are located at big 27 ° of the axis notch search coil counter clockwise direction.
Further, the state detection module specifically includes：
Signal acquiring unit, for obtaining the inductive signal of the big axis notch search coil, first electric current sensing
The inspection of the inductive signal of search coil, the inductive signal of second electric current sensing search coil and external input rotating diode
Survey is opened into signal, and is transformed to square-wave signal；
Fault self-checking unit, for judging whether that the detection for receiving external input rotating diode is opened into signal, Yi Jigen
Judge whether the first self test failure and the second self test failure occur according to the inductive signal of the big axis notch search coil, wherein,
The timestamp of inductive signal of first self test failure not capture the big axis notch search coil in 0.5s, described the
Two self test failures are the inductive signal frequency out-of-limit of the big axis notch search coil；
Timestamp storage unit, the detection that external input rotating diode is received for working as fault self-checking unit are opened into signal
And when not occurring first self test failure and second self test failure, the sensing letter of the big axis notch search coil is captured
Number timestamp, the time-base signal as current period is stored in array of data T [i], wherein, i=0,1 ..., n, T [i] table
Show the time-base signal in i-th period and capture the first electric current sensing search coil and second electric current described in current period
Sense the timestamp of the inductive signal of search coil, and be stored respectively in array of data X [j] [k] and Y [j] [k], wherein, j
The sensing of the first electric current detects described in when=1 ..., n, k=0,1 ..., m, X [j] [k] and Y [j] [k] represent j-th of period respectively
Whether coil and second electric current sensing search coil capture time stamp signal, and work as and capture within k-th of period
During time stamp signal, data storage is X [j] [k]/Y [j] [k]=0, and otherwise X [j] [k]/Y [j] [k]=1, n represents to capture number
According to periodicity, m represent a period in signal number sum；
Data positioning unit, for judging data X [j] [k] and the corresponding rotating diode branches of Y [j] [k], wherein, number
According to rotating diode branch ∈ [T [j]+offset1+ (k-0.5) Δ, T [j]+offset1+ (k+0.5) corresponding to X [j] [k]
Δ], rotating diode branch ∈ [T [j]+offset2+ (k-0.5) Δ, T [j]+offset2+ corresponding to data Y [j] [k]
(k+0.5) Δ], in formula, Δ=(T [j]-T [j-1])/30, offset1 represents X [j] [k] and the time-base signal of current period
Departure, offset2 represent the departure of Y [j] [k] and the time-base signal of current period；
Fault redundance detection unit, in the testing result for working as n period, the corresponding data of rotating diode branch go out
Existing w time and for 1, w be above predetermined threshold value, judgement present branch rotating diode failure,
Fault warning unit, for when only there are one rotating diode branch trouble when, carry out I sections of alarm prompts, when 2
And when rotating above diode branch failure, II segment fault promptings are carried out.
Further, second self test failure in the fault self-checking unit is specially：When the big axis notch is visited
The inductive signal frequency of test coil
The present invention also provides a kind of brushless excitation pattern generating sets based on above-mentioned rotating diode detecting system
Rotating diode detection method, including：
The state detection module obtains the inductive signal of the big axis notch search coil, first electric current sensing is visited
The detection of the inductive signal of test coil, the inductive signal of second electric current sensing search coil and external input rotating diode
It opens into signal, and is transformed to square-wave signal；
Judge whether the state detection module receives the external detection for putting into rotating diode and open into signal, and according to institute
The inductive signal for stating big axis notch search coil judges whether the first self test failure and the second self test failure occur, wherein, it is described
The timestamp of inductive signal of first self test failure not capture the big axis notch search coil in 0.5s, described second certainly
Examine the inductive signal frequency out-of-limit that failure is the big axis notch search coil；
When the detection that the state detection module receives external input rotating diode opens into signal and do not occur described the
When one self test failure and second self test failure, the timestamp of the inductive signal of the big axis notch search coil is captured, is made
Time-base signal for current period is stored in array of data T [i], wherein, i=0,1 ..., n, T [i] represent i-th period
Time-base signal；Capture the sensing of the first electric current sensing search coil described in current period and second electric current sensing search coil
The timestamp of signal, and be stored respectively in array of data X [j] [k] and Y [j] [k], wherein, j=1 ..., n, k=0,1 ...,
First electric current described in when m, X [j] [k] and Y [j] [k] represent j-th of period respectively senses search coil and the second electric current sense
Answer whether search coil captures time stamp signal within k-th of period, and when capturing time stamp signal, data storage
It represents to capture the periodicity of data for X [j] [k]/Y [j] [k]=0, no person X [j] [k]/Y [j] [k]=1, n, m represents a period
The sum of interior signal number；
Judge data X [j] [k] and the corresponding rotating diode branches of Y [j] [k], wherein, corresponding to data X [j] [k]
Rotating diode branch ∈ [T [j]+offset1+ (k-0.5) Δ, T [j]+offset1+ (k+0.5) Δ], data Y [j] [k] institute
Corresponding rotating diode branch ∈ [T [j]+offset2+ (k-0.5) Δ, T [j]+offset2+ (k+0.5) Δ], in formula, Δ
=(T [j]-T [j-1])/30, offset1 represent the departure of X [j] [k] and the time-base signal of current period, and offset2 is represented
The departure of Y [j] [k] and the time-base signal of current period；
When in the testing result in n period, the corresponding data of rotating diode branch occur w times and are above 1, and judgement is worked as
Preceding branch rotating diode failure, w are predetermined threshold value；
When only there are one during rotating diode branch trouble, I sections of alarm prompts of progress when 2 and rotate above diode
During branch trouble, II segment fault promptings are carried out.
Further, it further includes：The positioning of failure rotating diode branch, I sections of announcements are shown using host computer user-centered interface
Alert and II segment faults and limitation excitation system output function.
Further, second self test failure is specially：When the inductive signal frequency of the big axis notch search coil
Implement the present invention, have the advantages that：
(1) direct probe method is improved, does not need to add sensor, applied to rotary rectifier mode of excitation generator
Group, the position of search coil depends on engine block structure, it can be achieved that positioning, alarm, failure and other expanding functions.
(2) redundancy processing is carried out to operation result, ensures device reliability, stability, accuracy.
(3) it is accurately positioned, real-time display, limitation generator excited system is contributed, and ensures generating set safe operation, and can
Generating set operation monitoring center will be sent on I sections of alarms or II segment fault signals, starts I sections of alarms or II segment fault prediction schemes.
(4) it supports program of lower computer exploitation, and can be communicated with host computer, have a wide range of application, degree of intelligence is high, interface friend
It is good.
Description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is typical brushless excitation pattern generating set topology diagram；
Fig. 2 is an a kind of implementation of brushless excitation pattern generating set rotating diode detecting system provided by the invention
The structure chart of example；
Fig. 3 is that rotating diode state-detection positions schematic diagram in the present invention；
Fig. 4 is the schematic diagram that user-centered interface shows software nestools in the present invention；
Fig. 5 is an a kind of implementation of brushless excitation pattern generating set rotating diode detection method provided by the invention
The flow diagram of example.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
As shown in Fig. 2, it is a kind of brushless excitation pattern generating set rotating diode detecting system provided by the invention
The structure chart of one embodiment, as shown in Fig. 2, including big axis notch search coil TS1, the first electric current sensing search coil
TAS1, the second electric current sensing search coil TAS2 and state detection module, wherein, big axis notch search coil TS1 is set to hair
The periphery of motor group stationary part, for when big axis notch rotates to the big axis notch search coil TS1 corresponding positions, producing
Raw inductive signal；First electric current senses search coil TAS1 and the second electric current sensing search coil TAS2 is respectively arranged at generator
The periphery of group stationary part, and positioned at the both sides of big axis notch search coil TS1, the first electric current sensing search coil TAS1 and the
Two electric currents sense search coil TAS2 into fixed angle, specifically, the first electric current sensing search coil TAS1 is located at big axis notch
For search coil TS1 clockwise at 9 °, the second electric current sensing search coil is located at big axis notch search coil TS1 sides counterclockwise
At to 27 ° (specifically related with generating set rotation rectification element parallel branch number and the number of phases), in the branch of rotating diode
Road generates inductive signal when rotating to corresponding position；State detection module connects big axis notch search coil TS1, the first electric current sense
Search coil TAS1 and the second electric current is answered to sense search coil TAS2, for according to big axis notch search coil TS1, the first electric current
Whether the inductive signal detection rotating diode branch of sensing search coil TAS1 and the second electric current sensing search coil TAS2 is deposited
In failure, and finding that there are alerted during failure.
Wherein, state detection module specifically includes：
Signal acquiring unit, for obtaining the inductive signal of big axis notch search coil TS1, the first electric current sensing detection line
Enclose the detection of the inductive signal of TAS1, the inductive signal of the second electric current sensing search coil TAS2 and external input rotating diode
It opens into signal, and is transformed to square-wave signal；Wherein, when the big axis notch of rotor is rotated to TS1 positions, TAS1 and TAS2 are sensed
Rotation rectification element peak signal generates inductive signal；
Fault self-checking unit, for judging whether that the detection for receiving external input rotating diode is opened into signal, Yi Jigen
Judge whether the first self test failure and the second self test failure occur according to the inductive signal of big axis notch search coil TS1, wherein, the
The timestamp of inductive signal of one self test failure not capture big axis notch search coil TS1 in 0.5s, the second self test failure
For the inductive signal frequency out-of-limit of big axis notch search coil TS1, specially：The inductive signal of big axis notch search coil TS1
Frequency
Timestamp storage unit, the detection that external input rotating diode is received for working as fault self-checking unit are opened into signal
And when not occurring the first self test failure and the second self test failure, the time of the inductive signal of big axis notch search coil TS1 is captured
Stamp, the time-base signal as current period are stored in array of data T [i], wherein, i=0,1 ..., n, T [i] are represented i-th
The time-base signal and the first electric current of capture current period sensing search coil TAS1 in period and the second electric current sensing search coil
The timestamp of the inductive signal of TAS2, and be stored respectively in array of data X [j] [k] and Y [j] [k], wherein, j=1 ..., n,
K=0,1 ..., m, X [j] [k] and Y [j] [k] represent that the first electric current senses search coil TAS1 and second during j-th of period respectively
Whether electric current sensing search coil TAS2 captures time stamp signal, and work as and capture time stamp signal within k-th of period
When, data storage is X [j] [k]/Y [j] [k]=0, and expression is not broken down, no person X [j] [k]/Y [j] [k]=1, there is shown
Existing failure, n represent to capture the periodicity of data, the sum of the signal number in m one periods of expression；In the specific implementation, n can be with
Can be 40 for 5, m.
Data positioning unit, for judging data X [j] [k] and the corresponding rotating diode branches of Y [j] [k], wherein,
Corresponding to data X [j] [k] rotating diode branch ∈ [T [j]+offset1+ (k-0.5) Δ, T [j]+
Offset1+ (k+0.5) Δ],
Corresponding to data Y [j] [k] rotating diode branch ∈ [T [j]+offset2+ (k-0.5) Δ, T [j]+
Offset2+ (k+0.5) Δ],
In formula, Δ=(T [j]-T [j-1])/30, as shown in figure 3, offset1 represent X [j] [k] with current period when
The departure of base signal, offset2 represent the departure of Y [j] [k] and the time-base signal of current period；
It is the object of rotation rectification element referring to table 1TAS1 detection orderings table and table 2TAS2 detection ordering tables during specific positioning
Manage spatial position order of placement；
Table 1
Table 2
Fault redundance detection unit, in the testing result for working as n period, the corresponding data of rotating diode branch go out
, judge current rotating diode branch trouble existing w time and for 1, w be above predetermined threshold value, wherein, when n is 5, w can be set as
3；When it is implemented, can calculate number of stoppages XX [s]=X [1] [s] of s-th of rotating diode branch that TSA1 is detected+
X [2] [s]+...+X [n] [s], s=0,1 ..., m calculate the number of stoppages of s-th of rotating diode branch that TSA2 is detected
YY [s]=Y [1] [s]+Y [2] [s]+...+Y [n] [s], s=0,1 ..., m as XX [s] >=w and YY [s] >=w, judge s
A rotating diode branch trouble；
Fault warning unit, for when only there are one rotating diode branch trouble when, carry out I sections of alarm prompts, when 2
And when rotating above diode branch failure, II segment fault promptings are carried out.
State detection module includes analog signal hardware circuits which process part on hardware, outputs, X20CP1484 Bei Jialai
CPU module and serial communication module.
Implement the embodiment of the present invention, have the advantages that：
(1) direct probe method is improved, does not need to add sensor, applied to rotary rectifier mode of excitation generator
Group, the position of search coil depends on engine block structure, it can be achieved that positioning, alarm, failure and other expanding functions.
(2) redundancy processing is carried out to operation result, ensures device reliability, stability, accuracy.
(3) it is accurately positioned, real-time display, limitation generator excited system is contributed, and ensures generating set safe operation, and can
Generating set operation monitoring center will be sent on I sections of alarms or II segment fault signals, starts I sections of alarms or II segment fault prediction schemes.
Embodiment 2
It is examined with further including host computer user-centered interface nestools with state difference of the present embodiment from embodiment 1
Module connection is surveyed, as shown in figure 4, showing and limiting and encourage for the positioning of failure rotating diode branch, I sections of alarms and II segment faults
Magnetic system output function, with contributing according to rotary rectifier system failure degree cooperation field regulator limitation generator excited system,
Ensure generating set safe operation.
Implement the embodiment of the present invention, have the advantages that：
(1) direct probe method is improved, does not need to add sensor, applied to rotary rectifier mode of excitation generator
Group, the position of search coil depends on engine block structure, it can be achieved that positioning, alarm, failure and other expanding functions.
(2) redundancy processing is carried out to operation result, ensures device reliability, stability, accuracy.
(3) it is accurately positioned, real-time display, limitation generator excited system is contributed, and ensures generating set safe operation, and can
Generating set operation monitoring center will be sent on I sections of alarms or II segment fault signals, starts I sections of alarms or II segment fault prediction schemes.
(4) it supports program of lower computer exploitation, and can be communicated with host computer, have a wide range of application, degree of intelligence is high, interface friend
It is good.
Embodiment 3
Present embodiments provide a kind of brushless excitation pattern generator of the rotating diode detecting system based on embodiment 1
Group rotating diode detection method, as shown in figure 5, including step：
S101, state detection module obtain the inductive signal of big axis notch search coil TS1, the first electric current sensing detection line
Enclose the detection of the inductive signal of TAS1, the inductive signal of the second electric current sensing search coil TAS2 and external input rotating diode
It opens into signal, and is transformed to square-wave signal；
S102, judge whether state detection module receives the external detection for putting into rotating diode and open into signal, and according to
The inductive signal of big axis notch search coil TS1 judges whether the first self test failure and the second self test failure occur, wherein, first
The timestamp of inductive signal of the self test failure not capture big axis notch search coil TS1 in 0.5s, the second self test failure are
The inductive signal frequency out-of-limit of big axis notch search coil TS1, specially：When the inductive signal of big axis notch search coil TS1
Frequency
S103, when state detection module receive external input rotating diode detection open into signal and do not occur first from
When examining failure and the second self test failure, the timestamp of the inductive signal of big axis notch search coil TS1 is captured, as current period
Time-base signal be stored in array of data T [i], wherein, i=0,1 ..., n, T [i] represent i-th of period time-base signal；
Capture the inductive signal of current period the first electric current sensing search coil TAS1 and the second electric current sensing search coil TAS2 when
Between stab, and be stored respectively in array of data X [j] [k] and Y [j] [k], wherein, j=1 ..., n, k=0,1 ..., m, X [j]
[k] and Y [j] [k] represent the first electric current sensing search coil TAS1 and the second electric current sensing search coil during j-th of period respectively
Whether TAS2 captures time stamp signal within k-th of period, and when capturing time stamp signal, and data storage is X [j]
[k]/Y [j] [k]=0, no person X [j] [k]/Y [j] [k]=1, n represent to capture the periodicity of data, the letter in m one periods of expression
The sum of number number；
S104, judgement data X [j] [k] and the corresponding rotating diode branches of Y [j] [k], wherein, data X [j] [k] institute
Corresponding rotating diode branch ∈ [T [j]+offset1+ (k-0.5) Δ, T [j]+offset1+ (k+0.5) Δ], data Y
Rotating diode branch ∈ [T [j]+offset2+ (k-0.5) Δ, T [j]+offset2+ (k+0.5) corresponding to [j] [k]
Δ], in formula, Δ=(T [j]-T [j-1])/30, offset1 represents the departure of X [j] [k] and the time-base signal of current period,
Offset2 represents the departure of Y [j] [k] and the time-base signal of current period；
S105, when in the testing result in n period, the corresponding data of rotating diode branch occur w times and are above 1,
Judge present branch rotating diode failure, w is predetermined threshold value；
S106, when only there are one during rotating diode branch trouble, carrying out I sections of alarm prompts, when 2 and rotate above two
During pole pipe branch trouble, II segment fault promptings are carried out.
S107, the positioning of failure rotating diode branch, I sections of alarms and II segment faults are shown using host computer user-centered interface
And limitation excitation system output function.
The present embodiment is corresponded with embodiment 1, and part does not please refer to embodiment 1 to the greatest extent, and details are not described herein.
Implement the embodiment of the present invention, have the advantages that：
(1) direct probe method is improved, does not need to add sensor, applied to rotary rectifier mode of excitation generator
Group, the position of search coil depends on engine block structure, it can be achieved that positioning, alarm, failure and other expanding functions.
(2) redundancy processing is carried out to operation result, ensures device reliability, stability, accuracy.
(3) it is accurately positioned, real-time display, limitation generator excited system is contributed, and ensures generating set safe operation, and can
Generating set operation monitoring center will be sent on I sections of alarms or II segment fault signals, starts I sections of alarms or II segment fault prediction schemes.
(4) it supports program of lower computer exploitation, and can be communicated with host computer, have a wide range of application, degree of intelligence is high, interface friend
It is good.
It should be noted that herein, term " comprising ", "comprising" or its any other variant are intended to non-row
His property includes, so that process, method, article or device including a series of elements not only include those elements, and
And it further includes other elements that are not explicitly listed or further includes intrinsic for this process, method, article or device institute
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including this
Also there are other identical elements in the process of element, method, article or device.
The embodiments of the present invention are for illustration only, do not represent the quality of embodiment.
In several embodiments provided herein, it should be understood that disclosed system and method can pass through it
Its mode is realized.For example, system embodiment described above is only schematical, for example, the division of the unit, only
Only a kind of division of logic function can have other dividing mode in actual implementation, such as multiple units or component can be tied
It closes or is desirably integrated into another system or some features can be ignored or does not perform.Another point, it is shown or discussed
Mutual coupling, direct-coupling or communication connection can be the INDIRECT COUPLING or logical by some interfaces, device or unit
Letter connection can be electrical, machinery or other forms.
Professional further appreciates that, with reference to each exemplary unit of the embodiments described herein description
And algorithm steps, can be realized with the combination of electronic hardware, computer software or the two, in order to clearly demonstrate hardware and
The interchangeability of software generally describes each exemplary composition and step according to function in the above description.These
Function is performed actually with hardware or software mode, specific application and design constraint depending on technical solution.Profession
Technical staff can realize described function to each specific application using distinct methods, but this realization should not
Think beyond the scope of this invention.Software module can be placed in random access memory (RAM), memory, read-only memory (ROM), electricity
Well known in programming ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field
Any other form of storage medium in.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or use the present invention.
A variety of modifications of these embodiments will be apparent for those skilled in the art, it is as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and the principles and novel features disclosed herein phase one
The most wide range caused.
Claims (7)
1. a kind of brushless excitation pattern generating set rotating diode detecting system, which is characterized in that detected including big axis notch
Coil, the first electric current sensing search coil, the second electric current sensing search coil and state detection module, wherein,
The big axis notch search coil is set to the periphery of generating set stationary part, described for being rotated in big axis notch
During big axis notch search coil corresponding position, inductive signal is generated；
It is static that the first electric current sensing search coil and second electric current sensing search coil are respectively arranged at generating set
Partial periphery, and positioned at the both sides of the big axis notch search coil, first electric current sensing search coil and described the
Two electric currents sense search coil into fixed angle, for generating sensing letter when the branch of rotating diode rotates to corresponding position
Number；
The state detection module connects the big axis notch search coil, first electric current sensing search coil and described the
Two electric currents sense search coil, for according to the big axis notch search coil, first electric current sensing search coil and institute
It states the inductive signal detection rotating diode branch that the second electric current senses search coil and there is event with the presence or absence of failure, and in discovery
It is alerted during barrier；
The state detection module specifically includes：
Signal acquiring unit, for obtaining the inductive signal of the big axis notch search coil, first electric current sensing detection
The inductive signal of coil, the inductive signal of second electric current sensing search coil and the external detection for putting into rotating diode are opened
Enter signal, and be transformed to square-wave signal；
Fault self-checking unit, for judging whether that the detection for receiving external input rotating diode is opened into signal and according to institute
The inductive signal for stating big axis notch search coil judges whether the first self test failure and the second self test failure occur, wherein, it is described
The timestamp of inductive signal of first self test failure not capture the big axis notch search coil in 0.5s, described second certainly
Examine the inductive signal frequency out-of-limit that failure is the big axis notch search coil；
Timestamp storage unit, the detection that external input rotating diode is received for working as fault self-checking unit are opened into signal and not
When there is first self test failure and second self test failure, the inductive signal of the big axis notch search coil is captured
Timestamp, the time-base signal as current period are stored in array of data T [i], wherein, i=0,1 ..., n, T [i] represent the
The time-base signal in i period and capture the first electric current sensing search coil described in current period and second electric current sensing
The timestamp of the inductive signal of search coil, and be stored respectively in array of data X [j] [k] and Y [j] [k], wherein, j=
The sensing of the first electric current detects line described in when 1 ..., n, k=0,1 ..., m, X [j] [k] and Y [j] [k] represent j-th of period respectively
Whether circle and second electric current sensing search coil capture time stamp signal, and when capturing within k-th of period
Between when stabbing signal, data storage is X [j] [k]/Y [j] [k]=0, and no person X [j] [k]/Y [j] [k]=1, n represents to capture data
Periodicity, m represent a period in signal number sum；
Data positioning unit, for judging data X [j] [k] and the corresponding rotating diode branches of Y [j] [k], wherein, data X
Rotating diode branch ∈ [T [j]+offset1+ (k-0.5) Δ, T [j]+offset1+ (k+0.5) corresponding to [j] [k]
Δ], rotating diode branch ∈ [T [j]+offset2+ (k-0.5) Δ, T [j]+offset2+ corresponding to data Y [j] [k]
(k+0.5) Δ], in formula, Δ=(T [j]-T [j-1])/30, offset1 represents X [j] [k] and the time-base signal of current period
Departure, offset2 represent the departure of Y [j] [k] and the time-base signal of current period；
Fault redundance detection unit, in the testing result for working as n period, there is w in the corresponding data of rotating diode branch
It is secondary and above for 1, w be predetermined threshold value, judge present branch rotating diode failure,
Fault warning unit, for when only there are one rotating diode branch trouble when, carry out I sections of alarm prompts, when 2 and with
During upper rotating diode branch trouble, II segment fault promptings are carried out.
2. brushless excitation pattern generating set rotating diode detecting system as described in claim 1, which is characterized in that also wrap
Host computer user-centered interface is included, is connect with the state detection module, for the positioning of failure rotating diode branch, I sections of alarms
Excitation system output function is shown and limited with II segment faults.
3. brushless excitation pattern generating set rotating diode detecting system as claimed in claim 1 or 2, which is characterized in that
The first electric current sensing search coil is located at big 9 ° of the axis notch search coil clockwise direction, the second electric current sense
Search coil is answered to be located at big 27 ° of the axis notch search coil counter clockwise direction.
4. brushless excitation pattern generating set rotating diode detecting system as described in claim 1, which is characterized in that described
Second self test failure in fault self-checking unit is specially：When the inductive signal frequency of the big axis notch search coil
5. a kind of brushless excitation pattern generating set rotation two based on rotating diode detecting system as described in claim 1
Pole pipe detection method, which is characterized in that including：
The state detection module obtains the inductive signal of the big axis notch search coil, first electric current sensing detection line
The detection of the inductive signal of circle, the inductive signal of second electric current sensing search coil and external input rotating diode open into
Signal, and it is transformed to square-wave signal；
Judge whether the state detection module receives the external detection for putting into rotating diode and open into signal, and according to described big
The inductive signal of axis notch search coil judges whether the first self test failure and the second self test failure occur, wherein, described first
The timestamp of inductive signal of the self test failure not capture the big axis notch search coil in 0.5s, the second self-test event
Hinder the inductive signal frequency out-of-limit for the big axis notch search coil；
When the state detection module receive external input rotating diode detection open into signal and do not occur described first from
It examines failure and during second self test failure, captures the timestamp of the inductive signal of the big axis notch search coil, as working as
The time-base signal in preceding period is stored in array of data T [i], wherein, i=0,1 ..., n, T [i] represent the when base in i-th of period
Signal；Capture the inductive signal of the first electric current sensing search coil described in current period and second electric current sensing search coil
Timestamp, and be stored respectively in array of data X [j] [k] and Y [j] [k], wherein, j=1 ..., n, k=0,1 ..., m, X
The first electric current sensing search coil and second electric current sense described in when [j] [k] and Y [j] [k] represent j-th of period respectively
Whether search coil captures time stamp signal within k-th of period, and when capturing time stamp signal, and data storage is
X [j] [k]/Y [j] [k]=0, no person X [j] [k]/Y [j] [k]=1, n represent to capture the periodicity of data, in m one periods of expression
Signal number sum；
Judge data X [j] [k] and the corresponding rotating diode branches of Y [j] [k], wherein, the rotation corresponding to data X [j] [k]
Diode branch ∈ [T [j]+offset1+ (k-0.5) Δ, T [j]+offset1+ (k+0.5) Δ], data Y [j] [k] are corresponding
Rotating diode branch ∈ [T [j]+offset2+ (k-0.5) Δ, T [j]+offset2+ (k+0.5) Δ], in formula, Δ=(T
[j]-T [j-1])/30, offset1 represents the departure of X [j] [k] and the time-base signal of current period, offset2 represents Y [j]
The departure of [k] and the time-base signal of current period；
When in the testing result in n period, the corresponding data of rotating diode branch occur w times and are above 1, judge current branch
Road rotating diode failure, w are predetermined threshold value；
When only there are one during rotating diode branch trouble, I sections of alarm prompts of progress when 2 and rotate above diode branch
During failure, II segment fault promptings are carried out.
6. brushless excitation pattern generating set rotating diode detection method as claimed in claim 5, which is characterized in that use
Host computer user-centered interface shows that the positioning of failure rotating diode branch, I sections of alarms and II segment faults and limitation excitation system go out
Power function.
7. such as brushless excitation pattern generating set rotating diode detection method described in claim 5 or 6, which is characterized in that
Second self test failure is specially：When the inductive signal frequency of the big axis notch search coil
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511003528.5A CN105548856B (en) | 2015-12-28 | 2015-12-28 | Brushless excitation pattern generating set rotating diode detecting system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511003528.5A CN105548856B (en) | 2015-12-28 | 2015-12-28 | Brushless excitation pattern generating set rotating diode detecting system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105548856A CN105548856A (en) | 2016-05-04 |
| CN105548856B true CN105548856B (en) | 2018-07-06 |
Family
ID=55828173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511003528.5A Active CN105548856B (en) | 2015-12-28 | 2015-12-28 | Brushless excitation pattern generating set rotating diode detecting system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105548856B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6443461B2 (en) * | 2017-01-10 | 2018-12-26 | トヨタ自動車株式会社 | Abnormality detection device for power generator |
| CN109738780B (en) * | 2019-02-02 | 2021-02-02 | 广东核电合营有限公司 | Multi-phase angle connection brushless exciter rotating diode one-tube open circuit detection method and system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4565998A (en) * | 1982-02-15 | 1986-01-21 | Fuji Electric Company Limited | Diode failure detecting device in rotary rectifier |
| CN101644739A (en) * | 2009-08-03 | 2010-02-10 | 南京南瑞继保电气有限公司 | Method for detecting fault of rotating diode |
| CN101995540A (en) * | 2010-10-09 | 2011-03-30 | 中科华核电技术研究院有限公司 | Method and device for monitoring status of rotating diode of magnetizing exciter |
| CN102005888A (en) * | 2010-10-09 | 2011-04-06 | 中科华核电技术研究院有限公司 | Branch state monitoring method and device of rotary rectifier |
| CN201886119U (en) * | 2010-11-25 | 2011-06-29 | 杭州三和电控设备有限公司 | Rotary diode fault detection system based on microcomputer excitation adjuster |
| CN104483612A (en) * | 2014-12-15 | 2015-04-01 | 南京南瑞继保电气有限公司 | Harmonic analysis anti-interference method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201400702D0 (en) * | 2014-01-16 | 2014-03-05 | Rolls Royce Plc | Rectifier diode fault detection in brushless exciters |
-
2015
- 2015-12-28 CN CN201511003528.5A patent/CN105548856B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4565998A (en) * | 1982-02-15 | 1986-01-21 | Fuji Electric Company Limited | Diode failure detecting device in rotary rectifier |
| CN101644739A (en) * | 2009-08-03 | 2010-02-10 | 南京南瑞继保电气有限公司 | Method for detecting fault of rotating diode |
| CN101995540A (en) * | 2010-10-09 | 2011-03-30 | 中科华核电技术研究院有限公司 | Method and device for monitoring status of rotating diode of magnetizing exciter |
| CN102005888A (en) * | 2010-10-09 | 2011-04-06 | 中科华核电技术研究院有限公司 | Branch state monitoring method and device of rotary rectifier |
| CN201886119U (en) * | 2010-11-25 | 2011-06-29 | 杭州三和电控设备有限公司 | Rotary diode fault detection system based on microcomputer excitation adjuster |
| CN104483612A (en) * | 2014-12-15 | 2015-04-01 | 南京南瑞继保电气有限公司 | Harmonic analysis anti-interference method |
Non-Patent Citations (2)
| Title |
|---|
| Brushless Three-Phase Synchronous Generator Under Rotating Diode Failure Conditions;Mohamed Salah et al.;《IEEE TRANSACTIONS ON ENERGY CONVERSION》;20140930;第29卷(第3期);第594-601页 * |
| 无刷励磁机旋转二极管断相试验研究;杨林;《电工技术》;20131231(第1期);第1-3页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105548856A (en) | 2016-05-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106124935B (en) | Middle and low voltage network Fault Locating Method | |
| CN100462729C (en) | On-line monitoring method for winding turn-to-turn short-circuit of distribution generator stator based on multi-criterion mixing | |
| US20190137556A1 (en) | Method and system for detecting and locating single-phase ground fault on low current grounded power-distribution network | |
| US6772075B2 (en) | System and method for locating a disturbance in a power system based upon disturbance power and energy | |
| US6262550B1 (en) | Electrical motor monitoring system and method | |
| CN107015110A (en) | Synchronous recording fault location system, method | |
| US20130096848A1 (en) | Methods and systems for automatic rolling-element bearing fault detection | |
| US20160011252A1 (en) | Decision Support System for Outage Management and Automated Crew Dispatch | |
| US6911838B2 (en) | Online detection of shorted turns in a generator field winding | |
| CN105548814B (en) | A kind of distribution line ground fault judgment method and system | |
| CN108051739B (en) | For monitoring the method and system of permanent magnet machine rotor loss of excitation failure | |
| CN102820665B (en) | Method for rapidly identifying sub-synchronous oscillation in wind power integrated system | |
| CN109765459A (en) | It is a kind of based on the method for locating single-phase ground fault studied and judged on the spot and system | |
| CN106950450B (en) | The method for early warning and equipment of protective relaying device secondary circuit failure | |
| CN111983452B (en) | Method and system for detecting armature winding faults in a multiphase brushless exciter | |
| CN105548856B (en) | Brushless excitation pattern generating set rotating diode detecting system and method | |
| CN111308346A (en) | Method and system for detecting a fault in a field winding of a stator of a polyphase brushless exciter | |
| CN109085447B (en) | Wind electric converter open-circuit fault detection method based on current amplitude | |
| CN108254654B (en) | Method and device for diagnosing fault line in multi-phase circuit | |
| CN102914707B (en) | System and method to monitor the operation of a power generation system | |
| JP2014165232A (en) | Photovoltaic power generation module and photovoltaic power generation system | |
| CN107728063A (en) | A kind of direct-drive permanent magnet wind turbine generator group current transformer open fault diagnostic method | |
| JP2015070210A (en) | Monitoring system of photovoltaic power generation system | |
| Soualhi et al. | Electrical Systems 2: From Diagnosis to Prognosis | |
| CN111983419B (en) | Method and system for detecting diode faults in a multiphase brushless exciter rectifier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |