CN109687785A - Field regulator synchronizing voltage detection error calibration method, device and excitation system - Google Patents
Field regulator synchronizing voltage detection error calibration method, device and excitation system Download PDFInfo
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- CN109687785A CN109687785A CN201910162883.9A CN201910162883A CN109687785A CN 109687785 A CN109687785 A CN 109687785A CN 201910162883 A CN201910162883 A CN 201910162883A CN 109687785 A CN109687785 A CN 109687785A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
- H02P9/26—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices
- H02P9/30—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field using discharge tubes or semiconductor devices using semiconductor devices
Abstract
This application involves a kind of field regulator synchronizing voltage detection error calibration method, device and excitation systems.Field regulator synchronizing voltage detection error calibration method includes: the synchronous corresponding field regulator of exciting power unit for sending reference pulse to each parallel connection；Receive the phase difference that each field regulator is returned according to reference pulse, phase difference is the difference of the phase of the phase of the received reference pulse of field regulator and synchronizing voltage that field regulator detects；The phase pushing figure of field regulator is determined according to phase difference；Phase pushing figure is sent to corresponding field regulator, the phase for the synchronizing voltage that phase pushing figure is detected for field regulator calibration.Using the application, it can be achieved that the phase-detection error to synchronizing voltage is calibrated, excitation system operational reliability is high.
Description
Technical field
This application involves power electronics fields, more particularly to a kind of field regulator synchronizing voltage detection error school
Quasi- method, apparatus and excitation system.
Background technique
Excitation system is the important composition part of generator, is had to the safe and stable operation of electric system and generator itself
Very big influence.Excitation system generally comprises exciting power unit and field regulator, and exciting power unit turns to generator
Son provides exciting current, the phase of the synchronizing voltage of field regulator detection input, and given adjustment criteria is combined to control touching
It is silicon-controlled in hair exciting power unit, to control the output of exciting power unit.
Excitation system large and medium-sized at present generally uses multiple exciting power unit parallel runnings, each exciting power unit point
It is not controlled and is exported by corresponding field regulator, it is desirable that each field regulator is identical to silicon-controlled trigger angle.However,
In the practical excitation system course of work, probably due to the factors such as device aging, environmental change cause field regulator to synchronizing electricity
The phase-detection error of pressure；And if synchronizing voltage phase-detection error is big, the Trigger Angle between each field regulator can be caused
Degree is different, causes excitation system operational reliability low.
Summary of the invention
Based on this, it is necessary in view of the above technical problems, provide and a kind of be capable of providing encouraging for excitation system operational reliability
Magnestat synchronizing voltage detection error calibration method, device and excitation system.
A kind of field regulator synchronizing voltage detection error calibration method, which comprises
The synchronous corresponding field regulator of exciting power unit for sending reference pulse to each parallel connection；
The phase difference that each field regulator is returned according to the reference pulse is received, the phase difference is the adjustment of field excitation
The difference of the phase for the synchronizing voltage that the phase of the received reference pulse of device and the field regulator detect；
The phase pushing figure of the field regulator is determined according to the phase difference；
The phase pushing figure is sent to corresponding field regulator, the phase pushing figure is used for the adjustment of field excitation
The phase for the synchronizing voltage that device calibration detects.
A kind of field regulator synchronizing voltage detection error calibration method, which comprises
Receive the reference pulse that master controller is sent；
Phase-contrast is carried out to the synchronizing voltage of the reference pulse and input and obtains phase difference；
The phase difference is sent to the master controller, and receives the phase that the master controller is returned according to the phase difference
Position offset；
The phase of the synchronizing voltage is detected according to phase pushing figure calibration.
A kind of field regulator synchronizing voltage detection error calibrating installation, described device include:
Signal transmitting module, for the synchronous corresponding Excitation Adjustment of exciting power unit for sending reference pulse to each parallel connection
Save device；
Information receiving module, the phase difference returned for receiving each field regulator according to the reference pulse, the phase
Potential difference is the phase for the synchronizing voltage that the phase of the received reference pulse of the field regulator is detected with the field regulator
The difference of position；
Offset determination module, for determining the phase pushing figure of the field regulator according to the phase difference；
Offset sending module, for the phase pushing figure to be sent to corresponding field regulator, the phase is inclined
The phase for the synchronizing voltage that shifting amount is detected for field regulator calibration.
A kind of field regulator synchronizing voltage detection error calibrating installation, described device include:
Pulse receiving module, for receiving the reference pulse of master controller transmission；
Phase difference obtains module, carries out phase-contrast for the synchronizing voltage to the reference pulse and input and obtains phase
Difference；
Signal dispatcher module, for sending the phase difference to the master controller, and receive the master controller according to
The phase pushing figure that the phase difference returns；
Phase alignment module, for detecting the phase of the synchronizing voltage according to phase pushing figure calibration.
A kind of excitation system, which is characterized in that described including exciting power unit, master controller and field regulator
The quantity of exciting power unit and the field regulator be it is multiple and equal, each field regulator connect the master controller and
Corresponding exciting power unit；
The master controller performs the steps of
The synchronous corresponding field regulator of exciting power unit for sending reference pulse to each parallel connection；
The phase difference that each field regulator is returned according to the reference pulse is received, the phase difference is the adjustment of field excitation
The difference of the phase for the synchronizing voltage that the phase of the received reference pulse of device and the field regulator detect；
The phase pushing figure of the field regulator is determined according to the phase difference；
The phase pushing figure is sent to corresponding field regulator, the phase pushing figure is used for the adjustment of field excitation
The phase for the synchronizing voltage that device calibration detects；
The field regulator performs the steps of
Receive the reference pulse that master controller is sent；
Phase-contrast is carried out to the synchronizing voltage of the reference pulse and input and obtains phase difference；
The phase difference is sent to the master controller, and receives the phase that the master controller is returned according to the phase difference
Position offset；
The phase of the synchronizing voltage is detected according to phase pushing figure calibration.
Above-mentioned field regulator synchronizing voltage detection error calibration method, device and excitation system, it is same by master controller
Step sends reference pulse to the corresponding field regulator of exciting power unit of each parallel connection, makes the received base of each field regulator
Quasi- impulsive synchronization；Then master controller receives the phase and detection for the reference pulse that each field regulator is returned according to reference pulse
Synchronizing voltage phase between phase difference, the phase pushing figure of field regulator is determined according to phase difference and is sent to correspondence
Field regulator, by field regulator according to phase pushing figure calibration detection synchronizing voltage phase.In this way, adjustment of field excitation
Device, which can be realized, calibrates the phase-detection error of synchronizing voltage, eliminates the phase of the synchronizing voltage of each field regulator detection
Error, it is ensured that the trigger angle between field regulator is identical, so that the triggering between exciting power unit in parallel is error free,
Excitation system operational reliability is high.
Detailed description of the invention
Fig. 1 is the simplified pinciple block diagram of the excitation system of multiple exciting power unit parallel connections；
Fig. 2 is the equivalent schematic of two three-phase full-controlled rectifier bridge parallel runnings；
Fig. 3 is the flow diagram of field regulator synchronizing voltage detection error calibration method in one embodiment；
Fig. 4 is the flow diagram of field regulator synchronizing voltage detection error calibration method in another embodiment；
Fig. 5 is the structural block diagram of field regulator synchronizing voltage detection error calibrating installation in one embodiment；
Fig. 6 is the structural block diagram of field regulator synchronizing voltage detection error calibrating installation in another embodiment；
Fig. 7 is the structural schematic diagram of excitation system in one embodiment；
Fig. 8 is the workflow schematic diagram of excitation system in a specific embodiment；
Fig. 9 is the path of reference pulse transmission and spent time schematic diagram in one embodiment.
Specific embodiment
It is with reference to the accompanying drawings and embodiments, right in order to which the objects, technical solutions and advantages of the application are more clearly understood
The application is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application, not
For limiting the application.
The excitation system of multiple exciting power unit parallel connections accesses generator amature by exciting power unit is in parallel later,
As shown in Figure 1.Discovery is probed into, there is a problem of control machines having time difference between multiple exciting power units in parallel, and
Silicon-controlled triggering is determined by the trigger angle of field regulator, the benchmark of the trigger angle of exciting power adjuster is Excitation Adjustment
The phase that section device detects synchronizing voltage, therefore trigger error is determined by the detection error of synchronizing voltage.Example
As shown in figure 1, if the phase error for the synchronizing voltage that field regulator 1 and field regulator 2 detect is big, exciting power unit 1
It is big with the control machines application condition of exciting power unit 2.
By taking two exciting power units are in parallel as an example, exciting power unit mostly uses three-phase full-controlled rectifier bridge, three-phase fully-controlled
Rectifier bridge is evolved by three-phase half-wave controlled rectifier circuit, it is by three-phase semiwave commoncathode and three-phase semiwave common anode
The tandem compound of pole connection.The equivalent schematic of two three-phase full-controlled rectifier bridge parallel runnings is as shown in Fig. 2, every six silicon-controlled
Form a three-phase full-controlled rectifier bridge, R indicates the winding of rotor in figure, silicon-controlled 1, it is silicon-controlled 2, silicon-controlled 3, silicon-controlled 4, can
Control silicon 5, a silicon-controlled 6 corresponding three-phase full-controlled rectifier bridge, silicon-controlled 1 ', silicon-controlled 2 ', silicon-controlled 3 ', silicon-controlled 4 ', controllable
Silicon 5 ', silicon-controlled 6 ' another corresponding three-phase full-controlled rectifier bridge.If two field regulators miss the phase-detection of synchronizing voltage
It is poor big so that the trigger angle of control triggering is not identical, it may appear that the silicon-controlled first conducting of an exciting power unit and it is another
The silicon-controlled both end voltage of a exciting power unit is very low and electric current very little can not even be connected, and current-unbalance is caused even to burn
The failure for ruining device causes excitation system operational reliability low.For example, if silicon-controlled 1 first trigger and silicon-controlled 1 ' due to accidentally
Difference lags behind silicon-controlled 1 triggering, at this time silicon-controlled 1 by declining rapidly by the end of 1 ' both end voltage silicon-controlled in turn on process,
If the turn-on instant delay of silicon-controlled 1 ' triggering moment relatively silicon-controlled 1 is excessive, silicon-controlled 1 ' due to triggering when both ends electricity
It presses smaller and electric current smaller or even can not be connected, lead to excitation system operation troubles.
The adjustment of field excitation that this application provides one kind can calibrate phase-detection error, improves excitation system operational reliability
Device synchronizing voltage detection error calibration method, can be applied to the master controller communicated with field regulator.In one embodiment
In, as shown in figure 3, being applied to be illustrated for the master controller communicated with field regulator in this way, including following step
It is rapid:
S310: the synchronous corresponding field regulator of exciting power unit for sending reference pulse to each parallel connection.
Reference pulse is the reference pulse phase that each field regulator is sent to for the reference signal as phase bit comparison
Together.Reference pulse is synchronized and is sent to each field regulator, each field regulator be at the time of receiving reference pulse it is synchronous,
Reference pulse provides a unified synchronous time reference to each field regulator.Specifically, the frequency and input of reference pulse
Frequency to the synchronizing voltage of field regulator is identical, is convenient for phase bit comparison.
S330: the phase difference that each field regulator is returned according to reference pulse is received.
Wherein, the synchronous electricity that phase difference detects for the phase of the received reference pulse of field regulator with field regulator
The difference of the phase of pressure.After each field regulator receives reference pulse, compares the phase of the reference pulse received and detect
The phase of synchronizing voltage obtains phase difference, and phase difference is back to master controller.Specifically, what field regulator detected is same
The phase of voltage is walked, as field regulator carries out the phase that phase-detection obtains to the synchronizing voltage of input.
S350: the phase pushing figure of field regulator is determined according to phase difference.
Phase pushing figure is the difference that phase difference obtains compared with a fixed phase；The corresponding reference compared of each phase difference
Phase is identical.Specifically, the phase difference that each field regulator returns is compared by master controller with the same fixed phase,
Phase pushing figure of the result compared as corresponding field regulator.Wherein, fixed phase can be pre-set one
A phase is also possible to the phase difference that master controller is selected from received multiple phase differences.
S370: phase pushing figure is sent to corresponding field regulator.
Wherein, the phase for the synchronizing voltage that phase pushing figure is detected for field regulator calibration.That is, field regulator
After receiving phase pushing figure, according to the phase for the synchronizing voltage that phase pushing figure calibration detects.Specifically, master controller will
Phase pushing figure is sent to the corresponding field regulator of this phase pushing figure.
Since the phase pushing figure of each field regulator is to be based on corresponding phase difference and the same fixed phase,
And the corresponding phase difference of field regulator be based on field regulator detection synchronizing voltage phase and reference pulse phase,
Each received reference pulse of field regulator is synchronous, therefore, the phase pushing figure of each field regulator is based on identical relatively base
The value that will definitely be arrived；Each field regulator is calibrated according to phase of the phase pushing figure to the synchronizing voltage of detection, each Excitation Adjustment
The phase for saving synchronizing voltage after device is calibrated can be consistent, so that the phase for eliminating the synchronizing voltage of each field regulator detection is missed
Difference.
Above-mentioned field regulator synchronizing voltage detection error calibration method, by the synchronous reference pulse that sends to each parallel connection
The corresponding field regulator of exciting power unit, keep the received reference pulse of each field regulator synchronous；Then it receives and respectively encourages
Phase difference between the phase of the synchronizing voltage of the phase and detection for the reference pulse that magnestat is returned according to reference pulse, root
Determine the phase pushing figure of field regulator according to phase difference and be sent to corresponding field regulator so that field regulator according to
The phase of the synchronizing voltage of phase pushing figure calibration detection.In this way, can additive excitation adjuster realize to the phase of synchronizing voltage
Detection error is calibrated, and eliminates the phase error of the synchronizing voltage of each field regulator detection, it is ensured that between field regulator
Trigger angle it is identical, so that the triggering between exciting power unit in parallel is error free, excitation system operational reliability is high.
In addition, field regulator can be adjusted in real time using above-mentioned field regulator synchronizing voltage detection error calibration method
The phase of detection does not require precision of the field regulator to synchronizing voltage phase-detection, reduces to field regulator phase
The performance requirement of position detection.
In one embodiment, step S310 includes: to generate the corresponding phase detection signal of reference pulse, logical by optical fiber
Believe that synchronized broadcast sends the corresponding field regulator of exciting power unit of phase detection signal to each parallel connection.
Phase detection signal is generated according to reference pulse, suitable for the signal of fiber-optic communications traffic.Specifically, phase
Detection signal can be the signal of data frame format.After field regulator receives phase detection signal, it can parse to obtain benchmark
Pulse.By fiber optic communication synchronized broadcast, communication convenience, and it can guarantee that phase detection signal is sent simultaneously, it is ensured that each Excitation Adjustment
The reference pulse that section device receives and parses through is synchronous.
In one embodiment, step S350 includes: one fixed phase of selection from received phase difference, is calculated respectively not
The difference of the phase difference and fixed phase that are selected respectively obtains the phase of the corresponding field regulator of each non-selected phase difference
Position offset.
Accordingly, in the present embodiment, step S370 includes: by the corresponding field regulator of each non-selected phase difference
Phase pushing figure is sent to corresponding field regulator.For example, the phase difference that master controller selects field regulator 1 to return is ginseng
Phase is examined, then calculates separately the phase that the phase difference of the return of field regulator 2 and the difference of fixed phase, field regulator 3 return
The difference of potential difference and fixed phase respectively obtains the phase pushing figure of field regulator 2 and the phase offset of field regulator 3
Amount.The phase pushing figure of field regulator 2 is sent to field regulator 2 by master controller, by the phase offset of field regulator 3
Amount is sent to field regulator 3.
Specifically, the value that master controller can be that the non-selected phase difference of calculating subtracts fixed phase obtains phase offset
Amount, is also possible to calculate fixed phase and subtracts the value of non-selected phase difference and obtain phase pushing figure.By from received phase
One is selected in potential difference as fixed phase, i.e., with the synchronizing voltage of the selected corresponding field regulator detection of phase difference
For phase as benchmark, the phase pushing figure being calculated reflects that the corresponding field regulator of non-selected phase difference is detected
Deviation of the phase relative to benchmark；To which the corresponding field regulator of non-selected phase difference is calibrated according to phase pushing figure
Afterwards, the phase of the synchronizing voltage obtained can the detection of corresponding with selected phase difference field regulator synchronizing voltage phase
Unanimously, processing is easy.
It is appreciated that in other embodiments, master controller, which can also be, is calculated adjustment of field excitation using other methods
The phase pushing figure of device, for example, the fixed phase of a fixed numbers can be preset, the phase difference that each field regulator is returned
Phase pushing figure is obtained compared with fixed phase.
With reference to Fig. 4, present invention also provides a kind of field regulator synchronizing voltage detection error calibration methods, can apply
In the field regulator communicated with master controller.It is applied to carry out for the field regulator communicated with master controller in this way
Explanation, comprising the following steps:
S410: the reference pulse that master controller is sent is received.
Reference pulse is for the reference signal as phase bit comparison.The synchronous reference pulse that sends of master controller is to parallel connection
Each field regulator, each received reference pulse of field regulator are synchronous.
S430: phase-contrast is carried out to the synchronizing voltage of reference pulse and input and obtains phase difference.
Wherein, phase difference is the difference of the phase of the phase of benchmark pulse and the synchronizing voltage of detection input.Specifically, specifically
Ground, the frequency of reference pulse and the frequency of synchronizing voltage are identical.
S450: transmission phase difference to master controller, and receive the phase pushing figure that master controller is returned according to phase difference.
Phase pushing figure is the difference that master controller obtains phase difference compared with a fixed phase.Specifically, master control
Device processed is by each phase difference compared with the same fixed phase.
S470: the phase of detection synchronizing voltage is calibrated according to phase pushing figure.
Specifically, field regulator can be that increase or decrease phase in the phase basis of the synchronizing voltage detected inclined
Shifting amount, the phase after being calibrated.
Above-mentioned field regulator synchronizing voltage detection error calibration method, the benchmark arteries and veins sent by receiving master controller
Punching carries out phase-contrast to the synchronizing voltage of reference pulse and input and obtains phase difference, transmission phase difference to master controller, and connects
The phase pushing figure that master controller is returned according to phase difference is received, the phase of detection synchronizing voltage is calibrated according to phase pushing figure.Such as
This eliminates the phase of the synchronizing voltage of each field regulator detection, it can be achieved that the phase-detection error to synchronizing voltage is calibrated
Position error, it is ensured that the trigger angle between field regulator is identical, so that the triggering between exciting power unit in parallel is errorless
Difference, excitation system operational reliability are high.
In one embodiment, step S410 includes: to receive the phase-detection letter that master controller is sent by fiber optic communication
Number and parse, obtain reference pulse.By using fiber optic communication, communication convenience.
In one embodiment, step S430 includes: to detect the synchronizing voltage of reference pulse and input mutually in the same time
Phase；The synchronizing voltage of calculating benchmark pulse and input obtains phase difference in the difference of phase mutually in the same time.
For example, excitation controller, which detects phase of the reference pulse at the A moment, obtains phase 1, synchronizing voltage is detected at the A moment
Phase obtain phase 2, the difference for calculating phase 1 and phase 2 obtains phase difference.By calculating benchmark pulse with synchronizing voltage in phase
The difference of phase in the same time obtains phase difference, and accuracy is high.
In one embodiment, the phase that phase difference is equal to reference pulse subtracts the value of the phase of synchronizing voltage, and phase is inclined
Shifting amount is equal to the value that corresponding phase subtractive goes selected fixed phase.Accordingly, step S470 includes: and will test to synchronize electricity
The phase of pressure increases phase pushing figure, obtains the phase of new synchronizing voltage.
By increasing phase pushing figure on the basis of detecting the phase of synchronizing voltage, the calibration of detection error is realized,
Processing is easy.It is appreciated that in other embodiments, phase difference can also be that the phase equal to synchronizing voltage subtracts reference pulse
Phase value, phase pushing figure is equal to the value for subtracting corresponding phase difference of selected fixed phase；Accordingly, step S470
It may include: the phase increase phase pushing figure that will test synchronizing voltage, obtain the phase of new synchronizing voltage.
It should be understood that although each step in the flow chart of Fig. 3-4 is successively shown according to the instruction of arrow,
These steps are not that the inevitable sequence according to arrow instruction successively executes.Unless expressly stating otherwise herein, these steps
Execution there is no stringent sequences to limit, these steps can execute in other order.Moreover, at least one in Fig. 3-4
Part steps may include that perhaps these sub-steps of multiple stages or stage are not necessarily in synchronization to multiple sub-steps
Completion is executed, but can be executed at different times, the execution sequence in these sub-steps or stage is also not necessarily successively
It carries out, but can be at least part of the sub-step or stage of other steps or other steps in turn or alternately
It executes.
In one embodiment, as shown in figure 5, providing a kind of field regulator synchronizing voltage detection error calibration cartridge
It sets, can be applied to the master controller communicated with field regulator.The device includes signal transmitting module 510, information reception mould
Block 530, offset determination module 550 and offset sending module 570, in which:
Signal transmitting module 510 is for the synchronous corresponding excitation of exciting power unit for sending reference pulse to each parallel connection
Adjuster.Information receiving module 530 is to encourage for receiving the phase difference that each field regulator is returned according to reference pulse, phase difference
The difference of the phase for the synchronizing voltage that the phase and field regulator of the received reference pulse of magnestat detect.Offset determines
Module 550 is used to determine the phase pushing figure of field regulator according to phase difference.Offset sending module 570 is used for phase is inclined
Shifting amount is sent to corresponding field regulator, the phase for the synchronizing voltage that phase pushing figure is detected for field regulator calibration
Position.
Above-mentioned field regulator synchronizing voltage detection error calibrating installation sends base by the way that signal transmitting module 510 is synchronous
Quasi- pulse keeps the received reference pulse of each field regulator same to the corresponding field regulator of exciting power unit of each parallel connection
Step；Then information receiving module 530 receives the phase and detection for the reference pulse that each field regulator is returned according to reference pulse
Synchronizing voltage phase between phase difference, offset determination module 550 determines the phase of field regulator according to phase difference
Offset is simultaneously sent to corresponding field regulator by offset sending module 570, so that field regulator is according to phase offset
The phase of the synchronizing voltage of amount calibration detection.In this way, can additive excitation adjuster realize to the phase-detection error of synchronizing voltage
It is calibrated, eliminates the phase error of the synchronizing voltage of each field regulator detection, it is ensured that the Trigger Angle between field regulator
Spend identical, so that the triggering between exciting power unit in parallel is error free, excitation system operational reliability is high.
In one embodiment, signal transmitting module 510 generates the corresponding phase detection signal of reference pulse, passes through optical fiber
Communication synchronization broadcast transmission phase detection signal to each parallel connection the corresponding field regulator of exciting power unit.Pass through optical fiber
Communication synchronization broadcast, communication convenience, and can guarantee that phase detection signal is sent simultaneously, it is ensured that each field regulator receives and parses through
Obtained reference pulse is synchronous.
In one embodiment, offset determination module 550 selects a fixed phase from received phase difference, calculates
The difference of each non-selected phase difference and fixed phase respectively obtains the corresponding field regulator of each non-selected phase difference
Phase pushing figure.Accordingly, offset sending module 570 is by the phase of the corresponding field regulator of each non-selected phase difference
Position offset is sent to corresponding field regulator.
With reference to Fig. 6, present invention also provides a kind of field regulator synchronizing voltage detection error calibrating installations, can apply
In the field regulator communicated with master controller.The device includes pulse receiving module 610, phase difference acquisition module 630, information
Transceiver module 650 and phase alignment module 670.
Pulse receiving module 610 is used to receive the reference pulse of master controller transmission.Phase difference obtain module 630 for pair
Reference pulse and the synchronizing voltage of input carry out phase-contrast and obtain phase difference.Signal dispatcher module 650 is for sending phase difference
To master controller, and receive the phase pushing figure that master controller is returned according to phase difference.Phase alignment module 670 is used for according to phase
The phase of position offset calibration detection synchronizing voltage.
Above-mentioned field regulator synchronizing voltage detection error calibrating installation receives main control by pulse receiving module 610
The reference pulse that device is sent, phase difference obtain module 630 and obtain to the synchronizing voltage progress phase-contrast of reference pulse and input
Phase difference, the transmission phase difference of signal dispatcher module 650 to master controller, and receive the phase that master controller is returned according to phase difference
Offset, phase alignment module 670 calibrate the phase of detection synchronizing voltage according to phase pushing figure.So, it can be achieved that synchronization
The phase-detection error of voltage is calibrated, and eliminates the phase error of the synchronizing voltage of each field regulator detection, it is ensured that excitation
Trigger angle between adjuster is identical, so that the triggering between exciting power unit in parallel is error free, excitation system operation
High reliablity.
In one embodiment, pulse receiving module 610 receives the phase-detection that master controller is sent by fiber optic communication
Signal simultaneously parses, and obtains reference pulse.By using fiber optic communication, communication convenience.
In one embodiment, phase difference obtains synchronizing voltage of the module 630 for detecting reference pulse with input in phase
Phase in the same time；The synchronizing voltage of calculating benchmark pulse and input obtains phase difference in the difference of phase mutually in the same time.Such as
This obtains phase difference in the difference of phase mutually in the same time with synchronizing voltage by calculating benchmark pulse, and accuracy is high.
In one embodiment, the phase that phase difference is equal to reference pulse subtracts the value of the phase of synchronizing voltage, and phase is inclined
Shifting amount is equal to the value that corresponding phase subtractive goes selected fixed phase.Accordingly, phase alignment module 670 is for will test
The phase of synchronizing voltage increases phase pushing figure, obtains the phase of new synchronizing voltage.
By increasing phase pushing figure on the basis of detecting the phase of synchronizing voltage, the calibration of detection error is realized,
Processing is easy.It is appreciated that in other embodiments, phase difference can also be that the phase equal to synchronizing voltage subtracts reference pulse
Phase value, phase pushing figure is equal to the value for subtracting corresponding phase difference of selected fixed phase；Accordingly, phase alignment
The phase that module 670 is used to will test synchronizing voltage increases phase pushing figure, obtains the phase of new synchronizing voltage.
It, can be with about the specific restriction for the field regulator synchronizing voltage detection error calibrating installation for being applied to master controller
For the restriction of the field regulator synchronizing voltage detection error calibration method applied to master controller in seeing above, herein not
It repeats again.It, can about the specific restriction for the field regulator synchronizing voltage detection error calibrating installation for being applied to field regulator
With the restriction of the field regulator synchronizing voltage detection error calibration method in seeing above for being applied to field regulator,
This is repeated no more.Modules in above-mentioned field regulator synchronizing voltage detection error calibrating installation can be fully or partially through
Software, hardware and combinations thereof are realized.Above-mentioned each module can be embedded in the form of hardware or independently of the place in computer equipment
It manages in device, can also be stored in a software form in the memory in computer equipment, in order to which processor calls execution or more
The corresponding operation of modules.
With reference to Fig. 7, in one embodiment, a kind of excitation system, including exciting power unit 710, adjustment of field excitation are provided
The quantity of device 720 and master controller 730, exciting power unit 710 and field regulator 720 is multiple and equal.Specifically,
The corresponding field regulator 720 of one exciting power unit 710, each field regulator 720 connect master controller 730 and correspond to
Exciting power unit 710.
Wherein, field regulator 720 realizes that the field regulator that can be applied to field regulator described above is synchronous
Voltage detection error calibration method, master controller 730 realize the field regulator that can be applied to master controller described above
Synchronizing voltage detection error calibration method.It is the work flow diagram of excitation system in a specific embodiment, wherein bridge with reference to Fig. 8
Controller refers to field regulator.
Above-mentioned excitation system may be implemented the above-mentioned field regulator applied to field regulator and synchronize electricity due to using
Press the field regulator electricity synchronous with the above-mentioned field regulator applied to master controller may be implemented of detection error calibration method
The master controller of detection error calibration method is pressed, similarly, the operational reliability of excitation system is high.
In one embodiment, it is connected between master controller 730 and each field regulator 720 by fiber optic communication, communication
It is convenient.Specifically, master controller 730 generates the corresponding phase detection signal of reference pulse, is sent out by fiber optic communication synchronized broadcast
Send phase detection signal to each field regulator 720.So, it can be ensured that the reference pulse that each field regulator receives and parses through is same
Step.
In one embodiment, master controller 730 includes the first fiber optical transceiver and primary processor, the first fiber optical transceiver
Primary processor is connected, and is communicated to connect with field regulator.
Primary processor sends reference pulse to the first fiber optical transceiver, and it is corresponding that the first fiber optical transceiver sends reference pulse
Phase detection signal to each field regulator 720, receive phase difference that each field regulator 720 is returned according to reference pulse and turn
It is sent to primary processor.Primary processor determines the phase pushing figure of field regulator 720 according to phase difference, passes through the first optical fiber transceiving
Phase pushing figure is sent to corresponding field regulator 720 by device.
In one embodiment, field regulator 720 includes the second fiber optical transceiver and adjustment module, the second optical fiber transceiving
Device connects adjustment module, and communicates to connect with the first fiber optical transceiver.
Second fiber optical transceiver receives the phase detection signal that the first fiber optical transceiver is sent, and parsing phase detection signal obtains
To reference pulse and it is sent to adjustment module.Adjustment module carries out phase-contrast to the synchronizing voltage of reference pulse and input and obtains
Phase difference；Phase difference to the first fiber optical transceiver is received the first fiber optical transceiver according to phase difference by the second fiber optical transceiver
The phase pushing figure of return, adjustment module calibrate the phase of detection synchronizing voltage according to phase pushing figure.
Specifically, adjustment module may include synchronizing voltage detection module, trigger unit for thyristor and central processing unit, together
Step voltage detection module and trigger unit for thyristor are all connected with central processing unit.Synchronizing voltage detection module to reference pulse with it is defeated
The synchronizing voltage entered carries out phase-contrast and obtains phase difference and be sent to central processing unit, and central processing unit is received by the second optical fiber
Phase difference is sent to the first fiber optical transceiver and receives the phase pushing figure of return by hair device；Central processing unit is according to phase offset
The phase of amount calibration detection synchronizing voltage, and exciting power is triggered according to the phase controlling control trigger unit for thyristor after calibration
Unit it is silicon-controlled.
As shown in figure 9, being expressed as T, benchmark arteries and veins at the time of if the first fiber optical transceiver is issued phase detection signal
Being flushed at the time of reaching synchronizing voltage detection module is then T1+T2, therefore to guarantee the received calibration pulse of each field regulator 720
P1-Pn is synchronous, then need to only guarantee that each field regulator transmission delay T2 is identical.In the first fiber optical transceiver, using same
The mode of broadcast is walked, is guaranteed synchronous per the signal in optical-fibre channel all the way；And synchronizing voltage is sent to from the second fiber optical transceiver
It is nanosecond that detection module, which needs elapsed time, and each bridge control device is sent to synchronizing voltage detection from the second fiber optical transceiver in addition
Module needs elapsed time all the same, therefore negligible.So, it is ensured that transmission delay T2 is identical, thus each Excitation Adjustment
The received reference pulse P1-Pn of synchronizing voltage detection module for saving device 720 is synchronous.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the computer program can be stored in a non-volatile computer
In read/write memory medium, the computer program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein,
To any reference of memory, storage, database or other media used in each embodiment provided herein,
Including non-volatile and/or volatile memory.Nonvolatile memory may include read-only memory (ROM), programming ROM
(PROM), electrically programmable ROM (EPROM), electrically erasable ROM (EEPROM) or flash memory.Volatile memory may include
Random access memory (RAM) or external cache.By way of illustration and not limitation, RAM is available in many forms,
Such as static state RAM (SRAM), dynamic ram (DRAM), synchronous dram (SDRAM), double data rate sdram (DDRSDRAM), enhancing
Type SDRAM (ESDRAM), synchronization link (Synchlink) DRAM (SLDRAM), memory bus (Rambus) direct RAM
(RDRAM), direct memory bus dynamic ram (DRDRAM) and memory bus dynamic ram (RDRAM) etc..
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, 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, all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof 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 coming for those of ordinary skill in the art
It says, without departing from the concept of this application, various modifications and improvements can be made, these belong to the protection of the application
Range.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (10)
1. a kind of field regulator synchronizing voltage detection error calibration method, which is characterized in that the described method includes:
The synchronous corresponding field regulator of exciting power unit for sending reference pulse to each parallel connection；
The phase difference that each field regulator is returned according to the reference pulse is received, the phase difference is that the field regulator connects
The difference of the phase for the synchronizing voltage that the phase of the reference pulse of receipts and the field regulator detect；
The phase pushing figure of the field regulator is determined according to the phase difference；
The phase pushing figure is sent to corresponding field regulator, the phase pushing figure is used for the field regulator school
The phase for the synchronizing voltage that standard detects.
2. the method according to claim 1, wherein described determine the field regulator according to the phase difference
Phase pushing figure, comprising:
A fixed phase is selected from received phase difference, calculates the difference of each non-selected phase difference and the fixed phase
Value, respectively obtains the phase pushing figure of the corresponding field regulator of each non-selected phase difference.
3. a kind of field regulator synchronizing voltage detection error calibration method, which is characterized in that the described method includes:
Receive the reference pulse that master controller is sent；
Phase-contrast is carried out to the synchronizing voltage of the reference pulse and input and obtains phase difference；
The phase difference is sent to the master controller, and it is inclined to receive the phase that the master controller is returned according to the phase difference
Shifting amount；
The phase of the synchronizing voltage is detected according to phase pushing figure calibration.
4. according to the method described in claim 3, it is characterized in that, the synchronizing voltage to the reference pulse and input into
Row phase-contrast obtains phase difference, comprising:
The reference pulse is detected with the synchronizing voltage of input in phase mutually in the same time；
The synchronizing voltage of the reference pulse and input is calculated in the difference of phase mutually in the same time, obtains the phase difference.
5. the method according to claim 3 or 4, which is characterized in that the phase difference is equal to the phase of the reference pulse
The value of the phase of the synchronizing voltage is subtracted, the phase pushing figure is equal to corresponding phase subtractive and goes selected fixed phase
Value；The phase that the synchronizing voltage is detected according to phase pushing figure calibration, comprising:
The phase that will test the synchronizing voltage increases the phase pushing figure, obtains the phase of new synchronizing voltage.
6. a kind of field regulator synchronizing voltage detection error calibrating installation, which is characterized in that described device includes:
Signal transmitting module, for the synchronous corresponding adjustment of field excitation of exciting power unit for sending reference pulse to each parallel connection
Device；
Information receiving module, the phase difference returned for receiving each field regulator according to the reference pulse, the phase difference
The phase of synchronizing voltage detected for the phase of the received reference pulse of the field regulator and the field regulator it
Difference；
Offset determination module, for determining the phase pushing figure of the field regulator according to the phase difference；
Offset sending module, for the phase pushing figure to be sent to corresponding field regulator, the phase pushing figure
Phase for the synchronizing voltage that field regulator calibration detects.
7. a kind of field regulator synchronizing voltage detection error calibrating installation, which is characterized in that described device includes:
Pulse receiving module, for receiving the reference pulse of master controller transmission；
Phase difference obtains module, carries out phase-contrast for the synchronizing voltage to the reference pulse and input and obtains phase difference；
Signal dispatcher module for sending the phase difference to the master controller, and receives the master controller according to
The phase pushing figure that phase difference returns；
Phase alignment module, for detecting the phase of the synchronizing voltage according to phase pushing figure calibration.
8. a kind of excitation system, which is characterized in that the master control including exciting power unit, realization method as claimed in claim 1 or 2
Device processed and the field regulator for realizing any one of claim 3-5 the method, the exciting power unit and described
The quantity of field regulator is multiple and equal, each field regulator connection master controller and corresponding exciting power list
Member.
9. excitation system according to claim 8, which is characterized in that the master controller include the first fiber optical transceiver and
Primary processor, first fiber optical transceiver connects the primary processor, and communicates to connect with the field regulator.
10. excitation system according to claim 9, which is characterized in that the field regulator includes the second optical fiber transceiving
Device and adjustment module, second fiber optical transceiver connect the adjustment module, and with the first fiber optical transceiver communication link
It connects.
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