CN109752655A - Field regulator trigger pulse detection method, device, detector and test fixture - Google Patents
Field regulator trigger pulse detection method, device, detector and test fixture Download PDFInfo
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Abstract
This application involves a kind of field regulator trigger pulse detection method, device, detector and test fixtures.Field regulator trigger pulse detection method includes: that the voltage wave for obtaining the synchronizing voltage for being input to tested field regulator and tested field regulator are exported to the impulse wave of trigger pulse silicon-controlled corresponding to synchronizing voltage；Read the zero crossing time information of voltage wave and the zero crossing time information of impulse wave；According to the zero crossing time information of voltage wave and the zero crossing time information of impulse wave, phase difference of the impulse wave relative to corresponding voltage wave is obtained, the relative phase difference of impulse wave is obtained；Wherein, impulse wave is corresponding silicon-controlled corresponding with synchronizing voltage corresponding to corresponding voltage wave；Processing is compared according to the relative phase difference of impulse wave and preset term of reference, and generates the testing result information of corresponding trigger pulse.The operation stability of generator can be reduced using the tested field regulator of dysfunction to avoid user using the application.
Description
Technical field
This application involves power electronics field, more particularly to a kind of field regulator trigger pulse detection method,
Device, detector and test fixture.
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 is used to send out to synchronous
The rotor of motor provides exciting current, and field regulator is then according to the synchronizing voltage of input and given adjusting reference signal control
The phase of silicon-controlled trigger pulse is made, to control the output of exciting power unit.
However, in excitation system practical work process, probably due to the interference of many factors, can make field regulator function
Can be abnormal, for example the phase anomaly of trigger pulse or trigger pulse is not exported.User can not generally know field regulator
Function status can cause exciting current to control abnormal, lead to the stable of generator using the field regulator of dysfunction
Property is poor.
Summary of the invention
Based on this, it is necessary to which in view of the above technical problems, providing a kind of can be avoided reduces generator operation stability
Field regulator trigger pulse detection method, device, detector and test fixture.
A kind of field regulator trigger pulse detection method, which comprises
Obtain the voltage wave for being input to the synchronizing voltage of tested field regulator and the tested field regulator output
To the impulse wave of trigger pulse silicon-controlled corresponding to the synchronizing voltage；
Read the zero crossing time information of the voltage wave and the zero crossing time information of the impulse wave；
According to the zero crossing time information of the voltage wave and the zero crossing time information of the impulse wave, described in acquisition
Phase difference of the impulse wave relative to corresponding voltage wave, obtains the relative phase difference of the impulse wave；Wherein, the impulse wave is corresponding
It is silicon-controlled corresponding with synchronizing voltage corresponding to corresponding voltage wave；
Processing is compared according to the relative phase difference of the impulse wave and preset term of reference, and generates corresponding triggering arteries and veins
The testing result information of punching.
A kind of field regulator trigger pulse detection device, described device include:
Signal acquisition module is input to the voltage wave of the synchronizing voltage of tested field regulator and described for obtaining
Tested field regulator is exported to the impulse wave of trigger pulse silicon-controlled corresponding to the synchronizing voltage；
Information reading module, for reading the zero crossing time information of the voltage wave and the zero crossing of the impulse wave
Time information；
Phase-contrast module, for according to the zero crossing time information of the voltage wave and the zero crossing of the impulse wave
Time information obtains phase difference of the impulse wave relative to corresponding voltage wave, obtains the relative phase difference of the impulse wave；Its
In, the impulse wave is corresponding silicon-controlled corresponding with synchronizing voltage corresponding to corresponding voltage wave；
Compare detection module, for comparing place according to the relative phase difference and preset term of reference of the impulse wave
Reason, and generate the testing result information of corresponding trigger pulse.
A kind of detector, including memory and processor, the memory are stored with computer program, and the processor is held
It is performed the steps of when the row computer program
Obtain the voltage wave for being input to the synchronizing voltage of tested field regulator and the tested field regulator output
To the impulse wave of trigger pulse silicon-controlled corresponding to the synchronizing voltage；
Read the zero crossing time information of the voltage wave and the zero crossing time information of the impulse wave；
According to the zero crossing time information of the voltage wave and the zero crossing time information of the impulse wave, described in acquisition
Phase difference of the impulse wave relative to corresponding voltage wave, obtains the relative phase difference of the impulse wave；Wherein, the impulse wave is corresponding
It is silicon-controlled corresponding with synchronizing voltage corresponding to corresponding voltage wave；
Processing is compared according to the relative phase difference of the impulse wave and preset term of reference, and generates corresponding triggering arteries and veins
The testing result information of punching.
A kind of test fixture, including waveform shaping circuit and above-mentioned detector, the waveform shaping circuit connection is tested to encourage
The voltage input end and pulse output end of magnestat, and connect the detector；
The waveform shaping circuit receives input to the synchronizing voltage of the tested field regulator and described be tested is encouraged
Magnestat exports silicon-controlled trigger pulse corresponding to the synchronizing voltage, and to the synchronizing voltage and the triggering arteries and veins
Row waveform shaping is rushed in, the voltage after exporting the synchronizing voltage shaping involves the pulse arrival institute after the trigger pulse shaping
State detector.
Above-mentioned field regulator trigger pulse detection method, device, detector and test fixture are encouraged in conjunction with being input to be tested
The voltage wave of the synchronizing voltage of magnestat and tested field regulator are exported to triggering arteries and veins silicon-controlled corresponding to synchronizing voltage
The impulse wave of punching is handled, and is obtained impulse wave relative to the phase difference of corresponding voltage wave and is obtained the relative phase difference of impulse wave,
The relative phase difference of impulse wave and preset term of reference are compared into processing again, corresponding touching is generated according to the result for comparing processing
Send out the testing result information of pulse.In this way, the trigger pulse of tested field regulator output can be detected automatically, and trigger pulse is
Whether the no control machines function of normally embodying tested field regulator is normal, therefore, it can be achieved that tested adjustment of field excitation
The automatic detection of the control machines function of device knows the function status of tested field regulator convenient for user, avoids user
The operation stability of generator is reduced using the tested field regulator of dysfunction.
Detailed description of the invention
Fig. 1 is the flow diagram of field regulator trigger pulse detection method in one embodiment；
Fig. 2 is to be believed in one embodiment according to the zero passage point moment of the zero crossing time information of voltage wave and impulse wave
Breath obtains phase difference of the impulse wave relative to corresponding voltage wave, obtains the flow diagram of the relative phase difference of impulse wave；
Fig. 3 is the flow diagram of field regulator trigger pulse detection method in another embodiment；
Fig. 4 is the waveform diagram of three-phase synchronous voltage and the voltage wave after shaping in one embodiment；
Fig. 5 is the structural block diagram of field regulator trigger pulse detection device in one embodiment；
Fig. 6 is the internal structure chart of detector in one embodiment；
Fig. 7 is the structural block diagram of test fixture 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.
In one embodiment, as shown in Figure 1, a kind of field regulator trigger pulse detection method is provided, with the party
Method is applied to be illustrated for terminal, comprising the following steps:
S110: obtaining the voltage wave for being input to the synchronizing voltage of tested field regulator and tested field regulator is defeated
Out to the impulse wave of trigger pulse silicon-controlled corresponding to synchronizing voltage.
Device of the field regulator as control exciting power unit output, can be according to the synchronizing voltage of input and given
Reference signal is adjusted, output trigger pulse is silicon-controlled into exciting power unit, by the phase controlling for controlling trigger pulse
The output of exciting power unit.Wherein, tested field regulator is the field regulator for needing to test trigger pulse accuracy.Tool
Body, the synchronizing voltage for being input to tested field regulator specifically can be and be input to the voltage synchronous of exciting power unit,
It can be multiphase, be also possible to single-phase.What the silicon-controlled route for referring to input synchronizing voltage was connected corresponding to synchronizing voltage can
Control silicon；For alternating current, synchronizing voltage includes positive phase voltage and reverse voltage, and accordingly, the voltage that is synchronised can correspond to two
It is silicon-controlled, it is each silicon-controlled to respectively correspond a trigger pulse.For example, being input to the same of tested field regulator by taking three-phase as an example
Step voltage includes A phase voltage, B phase voltage, C phase voltage, and tested field regulator can be to six silicon-controlled triggering arteries and veins of output respectively
Punching, that is, six trigger pulses of output.
The voltage wave that terminal obtains is the signal that synchronizing voltage is corresponding, terminal can recognize form, specifically can be synchronization
Voltage passes through the signal after waveform shaping.The impulse wave that terminal obtains is that trigger pulse is corresponding, terminal can recognize form
Signal specifically can be trigger pulse by the signal after waveform shaping.Specifically, terminal can receive synchronizing voltage shaping
Impulse wave after voltage wave later and trigger pulse shaping.For example, can be using waveform shaping circuit respectively to synchronization
Voltage and trigger pulse carry out waveform shaping and obtain the voltage wave and impulse wave of square, and it is defeated that terminal receives waveform shaping circuit
Voltage wave and impulse wave out.It is appreciated that terminal be also possible to acquire synchronizing voltage and trigger pulse and to synchronizing voltage and
Trigger pulse carries out waveform shaping respectively and obtains corresponding voltage wave and impulse wave.
S130: the zero crossing time information of voltage wave and the zero crossing time information of impulse wave are read.
At the time of the zero crossing time information of wave refers to waveform through corresponding to when zero crossing.Specifically, the zero crossing of voltage wave
Time information include zero passage point moment when waveform is converted from just opposite negative in each period and in the corresponding period waveform from
Zero passage point moment when negative is converted to positive；The zero crossing time information of impulse wave include in each period waveform begin to ramp up
Zero passage point moment and waveform to positive are begun to decline to the zero passage point moment of negative.
Specifically, terminal can be carried out respectively by voltage wave to recognizable form and impulse wave zero passage point analysis or
Image recognition is carried out, obtains the zero crossing time information of voltage wave and the zero crossing time information of impulse wave, or can be with
It is the zero crossing time information for receiving the zero crossing time information and impulse wave of the voltage wave of user's input.
S150: according to the zero crossing time information of voltage wave and the zero crossing time information of impulse wave, impulse wave is obtained
Relative to the phase difference of corresponding voltage wave, the relative phase difference of impulse wave is obtained.
Phase difference of the impulse wave relative to corresponding voltage wave refers to phase of the impulse wave relative to the impulse wave corresponding voltage wave
Potential difference.Wherein, impulse wave is corresponding silicon-controlled corresponding with synchronizing voltage corresponding to corresponding voltage wave；That is, pair of impulse wave
Voltage wave is answered, refers to the voltage wave of silicon-controlled corresponding synchronizing voltage corresponding with this impulse wave.For example, with A phase voltage,
B phase voltage, C phase voltage are total to for three-phase, A phase voltage correspond to silicon-controlled 1, B phase voltage correspond to silicon-controlled 2, C phase voltage correspondence can
Control silicon 3；Then, voltage wave of the impulse wave that the relative phase difference of silicon-controlled 1 impulse wave is silicon-controlled 1 relative to A phase voltage
Phase difference, phase of the impulse wave that the relative phase difference of silicon-controlled 2 impulse wave is silicon-controlled 2 relative to the voltage wave of B phase voltage
Potential difference, phase of the impulse wave that the relative phase difference of silicon-controlled 3 impulse wave is silicon-controlled 3 relative to the voltage wave of C phase voltage
Difference.Specifically, when having multiple impulse waves, terminal acquires the relative phase difference of each impulse wave respectively.
S170: processing is compared according to the relative phase difference of impulse wave and preset term of reference, and generates corresponding triggering
The testing result information of pulse.
Preset term of reference can be specifically arranged according to actual needs, need to be tested for example, it may be being set as user
The target phase range that the trigger pulse of field regulator output reaches is also possible to be set as after the adjustment of target phase range
Range.
The testing result information of trigger pulse is to be used to indicate the whether normal information of trigger pulse.Specifically, impulse wave
Relative phase difference and preset term of reference compare the result of processing at least there are two types of, each compares the result pair of processing
A kind of testing result information is answered, terminal can generate corresponding testing result information according to the result for comparing processing.Specifically, have
When multiple impulse waves, the relative phase difference of each impulse wave and preset term of reference are compared into processing respectively, obtained each
Impulse wave corresponds to the testing result information of trigger pulse.
In above-mentioned field regulator trigger pulse detection method, in conjunction with the synchronizing voltage for being input to tested field regulator
Voltage wave and tested field regulator, which are exported to the impulse wave of trigger pulse silicon-controlled corresponding to synchronizing voltage, to be handled, and is obtained
Impulse wave is taken to obtain the relative phase difference of impulse wave relative to the phase difference of corresponding voltage wave, then by the relative phase difference of impulse wave
Processing is compared with preset term of reference, the testing result information of corresponding trigger pulse is generated according to the result for comparing processing.
In this way, the trigger pulse of tested field regulator output can be detected automatically, and whether trigger pulse normally embodies tested excitation
Whether the control machines function of adjuster is normal, therefore, it can be achieved that the control machines function of tested field regulator
Automatic detection is known the function status of tested field regulator convenient for user, user is avoided to be encouraged using the tested of dysfunction
Magnestat and the operation stability for reducing generator.
It in one embodiment, include step S151 to step S153 with reference to Fig. 2, step S150.
S151: the period of voltage wave is determined according to the zero crossing time information of voltage wave.
Voltage wave may include the waveform in multiple periods, the period of voltage wave be equal to two adjacent periods same phase it
Between time difference.Specifically, terminal can calculate zero passage point moment when waveform in a cycle is converted from just opposite negative with
The time difference of zero passage point moment when waveform is converted from just opposite negative in next cycle, or calculate waveform in a cycle
From negative to positive convert when zero passage point moment and next cycle in waveform from negative to positive convert when zero crossing when
The time difference at quarter obtains the period of voltage wave.
S153: the zero crossing time information of impulse wave and the zero crossing time information of corresponding voltage wave are compared, pulse is obtained
Same-phase interval time of the wave relative to corresponding voltage wave.
Specifically, terminal choose voltage wave a kind of corresponding zero crossing time information of variation tendency, in impulse wave with
The zero crossing time information of selection is close and the identical zero crossing time information of variation tendency compares.Wherein, variation tendency
Including ascendant trend and downward trend；The waveform of voltage wave from negative be converted to the waveform of positive and impulse wave since zero point on
Rising to positive is Similar trend, is ascendant trend；The waveform of voltage wave is converted to the wave of negative and impulse wave from positive
It is Similar trend that shape, which is begun to decline from zero point to negative, is downward trend.
S155: according to impulse wave relative to the same-phase interval time of corresponding voltage wave and the period of corresponding voltage wave, meter
Phase difference of the impulse wave relative to corresponding voltage wave is calculated, the relative phase difference of impulse wave is obtained.
By combining the zero crossing time information of voltage wave and impulse wave to carry out analytical calculation, determine voltage wave period,
It same-phase interval time of the impulse wave relative to corresponding voltage wave, can be accurate according to same-phase interval time and the period of voltage wave
Ground calculates the relative phase difference of impulse wave.
In one embodiment, a synchronizing voltage corresponding two it is silicon-controlled, the positive for respectively connecing positive phase voltage is silicon-controlled
It is silicon-controlled with the negative that connects negative voltage, then the corresponding trigger pulse of a synchronizing voltage include the silicon-controlled trigger pulse of positive and
The silicon-controlled trigger pulse of negative.Accordingly, the corresponding impulse wave of a synchronizing voltage includes positive impulse wave and negative impulse wave,
Wherein, positive impulse wave is the impulse wave of the silicon-controlled trigger pulse of positive, and negative impulse wave is the silicon-controlled triggering arteries and veins of negative
The impulse wave of punching.The zero crossing time information of positive impulse wave includes the rising edge of a pulse moment, when the zero crossing of negative impulse wave
Carving information includes the pulse falling edge moment；The zero crossing time information of voltage wave includes voltage rising edge moment and voltage failing edge
Moment.Wherein, the rising edge of a pulse moment refers to that waveform is begun to ramp up to the zero passage point moment of positive, and the pulse falling edge moment refers to
Waveform is begun to decline to the zero passage point moment of negative；The voltage rising edge moment refers to zero passage when waveform is converted from negative to positive
Point moment, voltage failing edge moment refer to zero passage point moment when waveform is converted from just opposite negative.
In the present embodiment, step S153 includes: the voltage rising edge moment for counting the voltage wave corresponding to the positive impulse wave
Start, the duration until the rising edge of a pulse moment of positive impulse wave, obtains positive impulse wave relative to corresponding voltage wave
Same-phase interval time；Counting the voltage failing edge moment of the voltage wave corresponding to the rp pulse wave, to rp pulse wave
The pulse falling edge moment until duration, obtain same-phase interval time of the rp pulse wave relative to corresponding voltage wave.
Specifically, voltage wave and positive impulse wave same time shaft can be placed in compare, it is suitable according to time order and function
Sequence is most adjacent with the voltage rising edge moment for starting point, backward into positive impulse wave from the voltage rising edge moment of voltage wave
The rising edge of a pulse moment be cut off, count starting point to the duration of cut off, obtain this positive impulse wave relative to correspondence
The same-phase interval time of voltage wave.Similarly same-phase interval time of the countable negative impulse wave relative to corresponding voltage wave.
By comparing the voltage rising edge moment at the rising edge of a pulse moment of positive impulse wave and voltage wave, by negative arteries and veins
The voltage failing edge moment at the pulse falling edge moment and voltage wave of rushing wave compares, and positive impulse wave and negative impulse wave are distinguished
Processing respectively obtains positive impulse wave and negative impulse wave respectively relative to the same-phase interval time of corresponding voltage wave, thus
Separate detection can be carried out to the corresponding trigger pulse of positive impulse wave and the corresponding trigger pulse of negative impulse wave, accuracy is high.
In one embodiment, when step S155 includes: same-phase interval of the calculating impulse wave relative to corresponding voltage wave
Between the ratio between with the period of corresponding voltage wave, obtain the ratio of impulse wave；It is calculated according to the ratio of impulse wave and default maximum phase
The relative phase difference of impulse wave is obtained, the relative phase difference of impulse wave and the ratio of impulse wave are directly proportional.
Wherein, default maximum phase refers to the total phase of a cycle, for example, a voltage wave is in one cycle most
Small phase is -180 °, and maximum phase is+180 °, then total phase is 360 °, i.e., default maximum phase may be configured as 360 °.With
Default maximum phase is equal to for 360 °, and terminal can calculate the relative phase difference of impulse wave according to the following formula:
α i=(T2i/T1i)*360°；
Wherein, α i is the relative phase difference of i-th of impulse wave, T1iIndicate the period of i-th of impulse wave corresponding voltage wave,
T2iIndicate same-phase interval time of i-th of impulse wave relative to corresponding voltage wave.
The relative phase difference of impulse wave, processing letter are calculated by the ratio and default maximum phase according to impulse wave
Just.Specifically, the relative phase difference of each positive impulse wave and the relative phase difference of negative impulse wave can be calculated separately.
In one embodiment, testing result information includes pulse normal information and pulse exception information.Accordingly, it refers to
Fig. 3, step S170 include:
S171: the relative phase difference of impulse wave and the difference of predetermined deviation phase are calculated, control machines phase shifting angle is obtained.
S173: if control machines phase shifting angle in preset term of reference, generates pulse normal information.
S175: if control machines phase shifting angle generates pulse exception information not in preset term of reference.
Wherein, predetermined deviation phase can be specifically arranged according to the actual situation, specifically can be according to line voltage relative to
The phase deviation of phase voltage is configured.For example, by taking exciting power unit is three-phase full-controlled rectifier bridge as an example, three-phase fully-controlled rectification
The control of bridge is with line voltage UAB、UBC、UCAPhase is as benchmark, line voltage UAWith phase voltage UAB30 ° are differed, then predetermined deviation
Phase can be set to 30 °.Specifically, the relative phase difference that terminal can calculate impulse wave subtracts the difference of predetermined deviation phase
Value, obtains control machines phase shifting angle.
Control machines phase shifting angle is obtained by deviating predetermined deviation phase on the basis of the relative phase difference of impulse wave,
Control machines phase shifting angle and the comparison of preset term of reference are generated into testing result information.In this way, phase deviation is considered
Interior, accuracy is high.
Specifically, if step S170 include can also include: the relative phase difference that impulse wave has not been obtained, generate pulse
Exception information.The relative phase difference of impulse wave has not been obtained, indicates that tested field regulator may be without output trigger pulse, it can
It is abnormal to control silicon Trigger Function.
By taking self-shunt excitation system as an example, exciting power unit is mostly three-phase full-controlled rectifier bridge, and three-phase full-controlled rectifier bridge is
It is evolved by three-phase half-wave controlled rectifier circuit, it is by three-phase semiwave commoncathode (including three silicon-controlled) and three-phase
The tandem compound of half-wave common-anode (silicon-controlled including three), three-phase voltage are corresponding silicon-controlled using 6.It is encouraged using above-mentioned
Magnestat trigger pulse detection method, if the voltage wave after A phase voltage Ta, B phase voltage Tb, C phase voltage Tc shaping is distinguished
For TA, TB, TC, as shown in figure 4, the impulse wave after 6 silicon-controlled trigger pulse shapings be respectively PA+, PA-, PB+,
PB-,PC+,PC-.By taking A phase as an example, treatment process includes:
(1): timing being carried out to the rising edge time twice of TA, to show that the period of TA is denoted as T1.
(2): since the rising edge time of TA timing, until the rising edge time of PA+, count PA+ relative to TA's
Same-phase interval time is T2.Thus phase difference α 1=(T2/T1) * 360 ° of the PA+ relative to TA can be calculated.
(3): since the failing edge moment of TA timing, until the failing edge moment of PA-, count PA- relative to TA's
Same-phase interval time T3.Thus phase α 2=(T3/T1) * 360 ° of the PA- relative to TA can be calculated.
(4): it can thus be concluded that going out:
1-30 ° of α of control machines phase shifting angle α A+=of positive A phase；
2-60 ° of α of the control machines phase shifting angle α A-=of negative A phase.
Similarly, B phase, C phase control machines phase shifting angle can be calculated.
It should be understood that although each step in the flow chart of Fig. 1-3 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. 1-3
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 trigger pulse detection device, comprising: letter
It number obtains module 410, information reading module 430, phase-contrast module 450 and compare detection module 470, in which:
Signal acquisition module 410 is used to obtain the voltage wave of the synchronizing voltage for being input to tested field regulator, and by
Field regulator is surveyed to export to the impulse wave of trigger pulse silicon-controlled corresponding to synchronizing voltage.Information reading module 430 is used for
Read the zero crossing time information of voltage wave and the zero crossing time information of impulse wave.Phase-contrast module 450 is used for basis
The zero crossing time information of voltage wave and the zero crossing time information of impulse wave obtain impulse wave relative to corresponding voltage wave
Phase difference obtains the relative phase difference of impulse wave；Wherein, impulse wave is corresponding silicon-controlled synchronous with corresponding to corresponding voltage wave
Voltage is corresponding.Compare detection module 470 for comparing place according to the relative phase difference and preset term of reference of impulse wave
Reason, and generate the testing result information of corresponding trigger pulse.
Above-mentioned field regulator trigger pulse detection device, in conjunction with the electricity for the synchronizing voltage for being input to tested field regulator
Pressure wave and tested field regulator are exported to the impulse wave of trigger pulse silicon-controlled corresponding to synchronizing voltage and are handled, and are obtained
Impulse wave obtains the relative phase difference of impulse wave relative to the phase difference of corresponding voltage wave, then by the relative phase difference of impulse wave with
Preset term of reference compares processing, and the testing result information of corresponding trigger pulse is generated according to the result for comparing processing.Such as
This, can detect the trigger pulse of tested field regulator output automatically, and whether trigger pulse normally embodies tested Excitation Adjustment
Whether the control machines function of saving device normal, therefore, it can be achieved that the control machines function of tested field regulator from
Dynamicization detection knows the function status of tested field regulator convenient for user, user is avoided to use the tested excitation of dysfunction
Adjuster and the operation stability for reducing generator.
In one embodiment, phase-contrast module 450 includes period determination unit (not shown), interval time counting list
First (not shown) and relative phase difference computing unit (not shown).Wherein, period determination unit is used for the zero passage according to voltage wave
Point moment information determines the period of voltage wave；Interval time counting unit be used to compare the zero crossing time information of impulse wave with it is right
The zero crossing time information for answering voltage wave obtains same-phase interval time of the impulse wave relative to corresponding voltage wave；Relative phase
Poor computing unit is used for according to impulse wave relative to the same-phase interval time of corresponding voltage wave and the period of corresponding voltage wave, meter
Phase difference of the impulse wave relative to corresponding voltage wave is calculated, the relative phase difference of impulse wave is obtained.
By combining the zero crossing time information of voltage wave and impulse wave to carry out analytical calculation, determine voltage wave period,
It same-phase interval time of the impulse wave relative to corresponding voltage wave, can be accurate according to same-phase interval time and the period of voltage wave
Ground calculates the relative phase difference of impulse wave.
In one embodiment, impulse wave includes positive impulse wave and negative impulse wave.When the zero crossing of positive impulse wave
Carving information includes the rising edge of a pulse moment, and the zero crossing time information of negative impulse wave includes the pulse falling edge moment；Voltage wave
Zero crossing time information include voltage rising edge moment and voltage failing edge moment.Accordingly, interval time counting unit is used
When rising edge of a pulse in the voltage rising edge moment for counting the voltage wave corresponding to the positive impulse wave, to positive impulse wave
Duration until quarter obtains same-phase interval time of the positive impulse wave relative to corresponding voltage wave；It counts from rp pulse wave
The voltage failing edge moment of corresponding voltage wave starts, the duration until the pulse falling edge moment of rp pulse wave, obtains
Same-phase interval time of the rp pulse wave relative to corresponding voltage wave.
By comparing the voltage rising edge moment at the rising edge of a pulse moment of positive impulse wave and voltage wave, by negative arteries and veins
The voltage failing edge moment at the pulse falling edge moment and voltage wave of rushing wave compares, and positive impulse wave and negative impulse wave are distinguished
Processing respectively obtains positive impulse wave and negative impulse wave respectively relative to the same-phase interval time of corresponding voltage wave, thus
Separate detection can be carried out to the corresponding trigger pulse of positive impulse wave and the corresponding trigger pulse of negative impulse wave, accuracy is high.
In one embodiment, relative phase difference computing unit is for calculating same phase of the impulse wave relative to corresponding voltage wave
In the ratio between the period of bit interval time and corresponding voltage wave, obtain the ratio of impulse wave；According to the ratio of impulse wave and default maximum
Phase calculation obtains the relative phase difference of impulse wave, and the relative phase difference of impulse wave and the ratio of impulse wave are directly proportional.
The relative phase difference of impulse wave, processing letter are calculated by the ratio and default maximum phase according to impulse wave
Just.Specifically, the relative phase difference of each positive impulse wave and the relative phase difference of negative impulse wave can be calculated separately.
In one embodiment, testing result information includes pulse normal information and pulse exception information.Accordingly, compare
Detection module 470 is used to calculate the relative phase difference of impulse wave and the difference of predetermined deviation phase, obtains control machines phase shift
Angle, if control machines phase shifting angle in preset term of reference, generates pulse normal information；If control machines phase shifting angle
Not in preset term of reference, then pulse exception information is generated.
Control machines phase shifting angle is obtained by deviating predetermined deviation phase on the basis of the relative phase difference of impulse wave,
Control machines phase shifting angle and the comparison of preset term of reference are generated into testing result information.In this way, phase deviation is considered
Interior, accuracy is high.
Specific restriction about field regulator trigger pulse detection device may refer to above for field regulator
The restriction of trigger pulse detection method, details are not described herein.Each mould in above-mentioned field regulator trigger pulse detection device
Block can be realized fully or partially through software, hardware and combinations thereof.Above-mentioned each module can be embedded in the form of hardware or independence
In processor in detector, it can also be stored in a software form in the memory in detector, in order to processor tune
With the corresponding operation of the above modules of execution.
In one embodiment, a kind of detector is provided, which can be terminal, and internal structure chart can be as
Shown in Fig. 6.The detector includes processor, memory, the network interface etc. connected by system bus.Wherein, the detector
Processor for provide calculate and control ability.The memory of the detector includes non-volatile memory medium, built-in storage.
The non-volatile memory medium is stored with operating system and computer program.The built-in storage is in non-volatile memory medium
The operation of operating system and computer program provides environment.The network interface of the detector is used to pass through network with external terminal
Connection communication.To realize a kind of field regulator trigger pulse detection method when the computer program is executed by processor.
It will be understood by those skilled in the art that structure shown in Fig. 6, only part relevant to application scheme is tied
The block diagram of structure, does not constitute the restriction for the detector being applied thereon to application scheme, and specific detector may include
Than more or fewer components as shown in the figure, certain components are perhaps combined or with different component layouts.
In one embodiment, a kind of detector, including memory and processor are provided, is stored with calculating in memory
The step of machine program, which realizes aforementioned field regulator trigger pulse detection method when executing computer program.
Above-mentioned detector, due to the step of realizing aforementioned field regulator trigger pulse detection method, similarly, it can be achieved that
Automatic detection to the control machines function of tested field regulator knows the function of tested field regulator convenient for user
Situation avoids user from reducing the operation stability of generator using the tested field regulator of dysfunction.
In one embodiment, a kind of test fixture is provided, which is characterized in that including waveform shaping circuit and above-mentioned
Detector, waveform shaping circuit connect the voltage input end and pulse output end of tested field regulator, and connecting detection device.Wave
Shape shaping circuit receives input to the synchronizing voltage of tested field regulator and tested field regulator is exported to synchronizing voltage
Corresponding silicon-controlled trigger pulse, and waveform shaping is carried out to synchronizing voltage and trigger pulse, after exporting synchronizing voltage shaping
Voltage involve the pulse arrival detector after trigger pulse shaping.
Using waveform shaping circuit, shaping transformation carried out to synchronizing voltage and trigger pulse respectively, obtained voltage wave and
Impulse wave be detector can recognize form signal, thus detector can by voltage wave zero crossing time information and pulse
Zero crossing time information in wave identifies.
Above-mentioned test fixture, due to using aforesaid detector, similarly, it can be achieved that the silicon-controlled of tested field regulator
The automatic detection of Trigger Function knows the function status of tested field regulator convenient for user, avoids user different using function
Normal tested field regulator and the operation stability for reducing generator.
In one embodiment, waveform shaping circuit includes voltage shaping circuit and pulse shaper, voltage shaping electricity
Road connects the voltage input end and detector of tested field regulator, and pulse shaper connects the pulse of tested field regulator
Output end and detector.
Voltage shaping circuit is used to carry out waveform shaping to synchronizing voltage, specifically can be sine wave synchronizing electricity
Pressure is shaped as the voltage wave of square.Pulse shaper is used to be shaped as trigger pulse the impulse wave of square.It is logical
It crosses and Shape correction is carried out to synchronizing voltage and trigger pulse respectively using two circuits, treatment effeciency is high.
In one embodiment, detector includes field programmable gate array and single-chip microcontroller, and waveform shaping circuit shows
Field programmable logic gate array and single-chip microcontroller are sequentially connected.
Field programmable gate array reads the zero crossing time information of voltage wave for obtaining voltage wave and impulse wave
And the zero crossing time information of impulse wave, believed according to the zero passage point moment of the zero crossing time information of voltage wave and impulse wave
Breath obtains phase difference of the impulse wave relative to corresponding voltage wave, obtains the relative phase difference of impulse wave；Wherein, impulse wave is corresponding
It is silicon-controlled corresponding with synchronizing voltage corresponding to corresponding voltage wave.Single-chip microcontroller be used for according to the relative phase difference of impulse wave with
Preset term of reference compares processing, and generates the testing result information of corresponding trigger pulse.
It is respectively processed by using field programmable gate array and single-chip microcontroller, function distribution to different components,
High treating effect.Specifically, with reference to Fig. 7, for the test fixture used in a specific embodiment.
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 trigger pulse detection method, which is characterized in that the described method includes:
It obtains the voltage wave for being input to the synchronizing voltage of tested field regulator and the tested field regulator is exported to institute
State the impulse wave of trigger pulse silicon-controlled corresponding to synchronizing voltage；
Read the zero crossing time information of the voltage wave and the zero crossing time information of the impulse wave；
According to the zero crossing time information of the voltage wave and the zero crossing time information of the impulse wave, the pulse is obtained
Phase difference of the wave relative to corresponding voltage wave, obtains the relative phase difference of the impulse wave；Wherein, the impulse wave is corresponding can
It is corresponding with synchronizing voltage corresponding to corresponding voltage wave to control silicon；
Processing is compared according to the relative phase difference of the impulse wave and preset term of reference, and generates corresponding trigger pulse
Testing result information.
2. the method according to claim 1, wherein the zero crossing time information according to the voltage wave with
And the zero crossing time information of the impulse wave, phase difference of the impulse wave relative to corresponding voltage wave is obtained, is obtained described
The relative phase difference of impulse wave, comprising:
The period of the voltage wave is determined according to the zero crossing time information of the voltage wave；
The zero crossing time information of the impulse wave and the zero crossing time information of corresponding voltage wave are compared, the impulse wave is obtained
Same-phase interval time relative to corresponding voltage wave；
According to the impulse wave relative to the same-phase interval time of corresponding voltage wave and the period of corresponding voltage wave, described in calculating
Phase difference of the impulse wave relative to corresponding voltage wave, obtains the relative phase difference of the impulse wave.
3. according to the method described in claim 2, it is characterized in that, the impulse wave includes positive impulse wave and negative pulse
Wave, the zero crossing time information of the positive impulse wave include the rising edge of a pulse moment, when the zero crossing of the negative impulse wave
Carving information includes the pulse falling edge moment；The zero crossing time information of the voltage wave includes under voltage rising edge moment and voltage
Drop is along the moment；
The zero crossing time information of the comparison impulse wave and the zero crossing time information of corresponding voltage wave, obtain the arteries and veins
Rush same-phase interval time of the wave relative to corresponding voltage wave, comprising:
Counting the voltage rising edge moment of the voltage wave corresponding to the positive impulse wave, to the arteries and veins of the positive impulse wave
The duration until rising edge time is rushed, same-phase interval time of the positive impulse wave relative to corresponding voltage wave is obtained；
Counting the voltage failing edge moment of the voltage wave corresponding to the rp pulse wave, to the arteries and veins of the rp pulse wave
The duration until the failing edge moment is rushed, same-phase interval time of the rp pulse wave relative to corresponding voltage wave is obtained.
4. according to the method described in claim 2, it is characterized in that, it is described according to the impulse wave relative to corresponding voltage wave
The period of same-phase interval time and corresponding voltage wave calculate phase difference of the impulse wave relative to corresponding voltage wave, obtain
The relative phase difference of the impulse wave, comprising:
The impulse wave is calculated relative to the same-phase interval time of corresponding voltage wave and the ratio between the period of corresponding voltage wave, is obtained
The ratio of the impulse wave；
The relative phase difference of the impulse wave, the pulse are calculated according to the ratio of the impulse wave and default maximum phase
The relative phase difference of wave is directly proportional to the ratio of the impulse wave.
5. method as claimed in any of claims 1 to 4, which is characterized in that the testing result information includes arteries and veins
Rush normal information and pulse exception information；The relative phase difference according to the impulse wave is compared with preset term of reference
Processing, and generate the testing result information of corresponding trigger pulse, comprising:
The relative phase difference of the impulse wave and the difference of predetermined deviation phase are calculated, control machines phase shifting angle is obtained；
If the control machines phase shifting angle in preset term of reference, generates the pulse normal information；
If the control machines phase shifting angle not in preset term of reference, generates the pulse exception information.
6. a kind of field regulator trigger pulse detection device, which is characterized in that described device includes:
Signal acquisition module is input to the voltage wave of the synchronizing voltage of tested field regulator and described tested for obtaining
Field regulator is exported to the impulse wave of trigger pulse silicon-controlled corresponding to the synchronizing voltage；
Information reading module, for reading the zero crossing time information of the voltage wave and the zero passage point moment of the impulse wave
Information；
Phase-contrast module, for according to the zero crossing time information of the voltage wave and the zero passage point moment of the impulse wave
Information obtains phase difference of the impulse wave relative to corresponding voltage wave, obtains the relative phase difference of the impulse wave；Wherein,
The impulse wave is corresponding silicon-controlled corresponding with synchronizing voltage corresponding to corresponding voltage wave；
Compare detection module, for comparing processing according to the relative phase difference and preset term of reference of the impulse wave, and
Generate the testing result information of corresponding trigger pulse.
7. a kind of detector, memory and processor, the memory is stored with computer program, which is characterized in that the place
The step of reason device realizes any one of claims 1 to 5 the method when executing the computer program.
8. a kind of test fixture, which is characterized in that described including waveform shaping circuit and detector as claimed in claim 7
Waveform shaping circuit connects the voltage input end and pulse output end of tested field regulator, and connects the detector；
The waveform shaping circuit receives input to the synchronizing voltage and the tested Excitation Adjustment of the tested field regulator
Section device exports silicon-controlled trigger pulse corresponding to the synchronizing voltage, and to the synchronizing voltage and the trigger pulse into
Row waveform shaping, the voltage after exporting the synchronizing voltage shaping involve inspection described in the pulse arrival after the trigger pulse shaping
Survey device.
9. test fixture according to claim 8, which is characterized in that the waveform shaping circuit includes voltage shaping circuit
And pulse shaper, the voltage shaping circuit connect the tested field regulator voltage input end and the detection
Device, the pulse shaper connect the pulse output end and the detector of the tested field regulator.
10. test fixture according to claim 8 or claim 9, which is characterized in that the detector includes field programmable logic
Gate array and single-chip microcontroller, the waveform shaping circuit, the field programmable gate array and the single-chip microcontroller are sequentially connected；
The field programmable gate array reads the zero crossing of the voltage wave for obtaining the voltage wave and impulse wave
The zero crossing time information of time information and the impulse wave, according to the zero crossing time information of the voltage wave and described
The zero crossing time information of impulse wave obtains phase difference of the impulse wave relative to corresponding voltage wave, obtains the impulse wave
Relative phase difference；Wherein, the impulse wave is corresponding silicon-controlled corresponding with synchronizing voltage corresponding to corresponding voltage wave；
The single-chip microcontroller is used to compare processing according to the relative phase difference and preset term of reference of the impulse wave, and generates
The testing result information of corresponding trigger pulse.
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| CN101004438A (en) * | 2006-11-09 | 2007-07-25 | 天津理工大学 | Excitation test system based on virtual instrument |
| CN108414932A (en) * | 2018-03-02 | 2018-08-17 | 苏州热工研究院有限公司 | A kind of pilot exciter fault monitoring method and system |
| CN208285237U (en) * | 2018-07-04 | 2018-12-25 | 哈尔滨理工大学 | A kind of automatic voltage regulating device with power factor controlling |
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2019
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|---|---|---|---|---|
| US20040066200A1 (en) * | 2002-10-08 | 2004-04-08 | Mitsubishi Denki Kabushiki Kaisha | Vehicular alternator failure determination apparatus |
| CN101004438A (en) * | 2006-11-09 | 2007-07-25 | 天津理工大学 | Excitation test system based on virtual instrument |
| CN108414932A (en) * | 2018-03-02 | 2018-08-17 | 苏州热工研究院有限公司 | A kind of pilot exciter fault monitoring method and system |
| CN208285237U (en) * | 2018-07-04 | 2018-12-25 | 哈尔滨理工大学 | A kind of automatic voltage regulating device with power factor controlling |
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