CN107820586A - Stable-pressure device - Google Patents
Stable-pressure device Download PDFInfo
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- CN107820586A CN107820586A CN201680002034.1A CN201680002034A CN107820586A CN 107820586 A CN107820586 A CN 107820586A CN 201680002034 A CN201680002034 A CN 201680002034A CN 107820586 A CN107820586 A CN 107820586A
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- 238000005259 measurement Methods 0.000 claims abstract description 47
- 230000005611 electricity Effects 0.000 claims description 17
- 230000006641 stabilisation Effects 0.000 claims description 17
- 238000011105 stabilization Methods 0.000 claims description 17
- 230000009466 transformation Effects 0.000 description 33
- 238000000605 extraction Methods 0.000 description 11
- 230000006837 decompression Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 230000033228 biological regulation Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000205 computational method Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/625—Regulating voltage or current wherein it is irrelevant whether the variable actually regulated is ac or dc
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Automation & Control Theory (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Control Of Electrical Variables (AREA)
Abstract
The invention aims to provide it is a kind of be able to ensure that output to output end voltage be predeterminated voltage stable-pressure device.The power control unit (1) of the present invention is included with lower component：Measure the input voltage measuring appliance (2) of the voltage of the electric power (E) from input power supply P inputs；The output voltage measuring appliance (3) of the measurement output extremely voltage of output end load F electric power (E)；And the voltage measurement information exported according to Voltage measure (2,3), prediction are conveyed to the change voltage prediction portion (4) of the voltage change of the electric power (E) of output end load (F)；The potential device (5) of the voltage of the electric power (E) from power supply (P) input is raised and lowered；And the prediction result according to change voltage prediction portion (4), the voltage that control potential device (5) is delivered to the electric power (E) of output end load (F) maintain control device (6) in voltage dead band set in advance (S1).
Description
Technical field
The present invention relates to for such as electronic equipment, precision instrument, precision optical machinery stably provide predetermined voltage electricity
The stable-pressure device used in the case of power.
Technical background
The device of the above-mentioned described electric power for stably providing predetermined voltage, many kinds are it is also proposed in today's society.Specially
The transformer with split winding with load time-division contact switch disclosed in sharp document 1 is also one kind in this stable-pressure device.
The transformer with split winding with load time-division contact switch is the in First generator operation in patent document 1
Before generator after two brings into operation, or before a generator in more operating generators is out of service,
Predict the terminal voltage of more generator of the generator being activated untill stable operation, or the generator that prediction is stopped
Terminal voltage of the generator continued to run with after stoppage in transit etc., the control of tap is carried out with by voltage control by tap changer
System is in the range of assigned voltage.
However, it is difficult to these voltage changes are predicted exactly, such as it is to regulation electricity to export to the voltage of generator
High voltage Tape movement more than scope is pressed, is still still just returned to the low-voltage Tape movement below assigned voltage scope
In the range of assigned voltage, etc..Thus it is difficult to ensure that output to the voltage of generator is voltage set in advance.
Prior art literature
Patent document
Patent document 1：JP 2007-89370 publications
The content of the invention
Invent the problem solved
The invention aims to provide to can ensure that output to the voltage of output end is stable-pressure device set in advance.
The means to solve the problem
The present invention is the stable-pressure device that the voltage for exporting input to output end is adjusted in default voltage dead band, interior
Put following device：Measure the input voltage measurement apparatus of the voltage of power from input input；Measurement is exported to described defeated
Go out the output voltage measurement apparatus of the voltage of power at end；And the voltage prediction voltage measured according to each voltage measuring apparatus will
To the change voltage prediction device of the voltage Tape movement more high or low than voltage dead band；The transformation of the voltage of power is raised and lowered
Device；And the output control potential device predicted according to the change voltage prediction device, it will export to the voltage of output end
The stable control device in default voltage dead band.
Above-mentioned input can be by the power supply structure such as AC power, dc source or battery, solar power generating device
Into.Output end can be made up of the motor or drive device even load of such as driven by power.Input voltage measurement apparatus and output
Voltage measuring apparatus can be by forming such as Voltage measure, voltage measurement sensor.
Potential device can be by forming such as transformer, inverter, rectifier, triode.Change voltage prediction device
Can be by with PIC, (Peripheral Interface Controller=ancillary equipment connects control and used with control device
IC), CPU, ROM, RAM control loop etc. is formed.
So-called prediction, including for example predict whether the voltage of electric power will be moved to high-voltage region, or prediction electric power electricity
Whether pressure will be moved to low-voltage region, or predict whether voltage regime before voltage change to be returned to etc..
In accordance with the invention it is possible to ensure that output to the voltage of power of output end is voltage set in advance.
Specifically, the voltage of the electric power inputted from input is measured by input voltage measurement apparatus, by exporting electricity
Pressure measuring device measurement is exported to the voltage of the electric power of output end.The voltage measurement measured according to various voltage measuring apparatus is believed
Breath, utilize the change for changing the prediction of voltage prediction device and being moved to from voltage dead band the voltage of power in the quasi- dead band of voltage.Control dress
The prediction result that putting is to obtain according to change voltage prediction device controls potential device, and boosting, decompression make output to output end
Voltage of power is limited in voltage dead band set in advance.
It is for example, accurate dead to the voltage higher than default voltage dead band to the voltage of power of output end when predicting output
When area moves, either predict when being moved to the quasi- dead band of lower than voltage dead band voltage or predict and return to electricity
During voltage dead band before buckling, transformation adjustment is carried out by potential device, rise or reduces voltage from input input,
So as to which the voltage of power stabilization to output end will be exported in voltage dead band.
Thus, it is possible to ensure the voltage that output is limited in the voltage of power of output end in voltage dead band set in advance.
Therefore, it is possible to more reliably stably by voltage output set in advance to output end.
Moreover, because output to the voltage of power of output end is stable, if being applied to such as precision equipment, electricity
In the equipment such as sub- equipment, it can prevent from causing mechanical disorder or insufficiency.Simultaneously can also be as big machinery and device
Driving power uses.
Embodiments of the present invention can so be set：It is flat after the voltage of power that is measured in voltage dead band is average
In the case of the voltage change direction identical of the change voltage measured in equal voltage and the quasi- dead band of the voltage, when the change
Voltage prediction device predict the average voltage and the change voltage voltage change difference occur beyond defined voltage it
On voltage change when, the result predicted according to the change voltage prediction device passes through the control device and controls the change
Pressure device.
By means of the invention it is possible to more reliably ensure that output to the voltage of power of output end is voltage set in advance.
Specifically, the average voltage measured in voltage dead band and the voltage for the change voltage measured in the quasi- dead band of voltage
In the case that change direction is consistent, when the voltage change difference that change voltage prediction device predicts average voltage and changes voltage has
During beyond the voltage change of the regulation above, according to the result of change voltage prediction device prediction, potential device is utilized to carry out transformation
Adjustment, output is restricted in voltage dead band to boost in voltage or the decompression of output end.When predicting average voltage and change
When voltage change difference between voltage does not change more than assigned voltage, it is not necessary to adjusted by potential device transformation.
In such manner, it is possible to more reliably ensure that output to the voltage of power of output end is limited in voltage dead band set in advance
Voltage.
Therefore, it is possible to more reliably stably by voltage output set in advance to output end.
Other embodiments of the present invention are it is also possible that setting：The average voltage measured in voltage dead band is accurate with voltage
In the case that the voltage change for changing voltage of measurement is in opposite direction in dead band, when the electricity for predicting average voltage and change voltage
When pressing difference in change beyond defined voltage change, according to the result of the change voltage prediction device prediction, pass through the control
Device controls the potential device.
By means of the invention it is possible to more reliably ensure that output to the voltage of the electric power of output end is voltage set in advance.
Specifically, the voltage change direction of the average voltage after voltage of power is measured in voltage dead band averagely and voltage are accurate
The electric power measured in dead band change voltage voltage change it is in opposite direction in the case of, when change voltage prediction device predict
When the voltage change difference of average voltage and change voltage has the voltage change more than assigned voltage, according to change voltage prediction
The result that device predicts, by potential device to export to output end voltage carry out voltage adjustment, by boost, be depressured and
Stabilize it in voltage dead band.When predict average voltage and change voltage between voltage change difference without departing from assigned voltage
During the change of the above, it is not necessary to adjusted by potential device transformation.
In such manner, it is possible to more reliably ensure that output to the voltage of power of output end is limited in voltage dead band to be set in advance
Interior voltage.
Therefore, it is possible to more reliably stably provide voltage set in advance for output end.
In addition, embodiments of the present invention can also so be set：In the quasi- dead band of the voltage, the continuous stipulated time surveys
The voltage of electric power is measured, is predicted by the change voltage prediction device, the result predicted according to the change voltage prediction device,
The potential device is controlled by the control device.
By means of the invention it is possible to more reliably ensure that output to the voltage of power of output end is voltage set in advance.
Specifically, the voltage of power (for example voltage of continuous 3 seconds measurement electric power) in the quasi- dead band of voltage is continuously measured, is passed through
Change the prediction of voltage prediction device, the result predicted according to change voltage prediction device, boosted or be depressured using potential device, will
Export to the voltage of power of output end and be restricted to voltage dead band.When predicting the voltage of power in the quasi- dead band of voltage in the stipulated time
When not being continuously measured, it is not necessary to carry out transformation adjustment by potential device.
In such manner, it is possible to more reliably ensure that output to the voltage of power of output end is limited in voltage dead band set in advance
Voltage.
Therefore, it is possible to which the electrical power stabilization for presetting voltage more reliably is supplied into output end.
In addition, can also so it be set in embodiments of the present invention：Voltage of power is measured within the time set in advance
In the case of, when the voltage of power measured in the quasi- dead band of the voltage occurs beyond the voltage change of period, pass through institute
State control device and control the potential device.
By means of the invention it is possible to more reliably ensure that output to the voltage of power of output end is voltage set in advance.
Specifically, in the case where measuring voltage of power with the period set in advance, measured when in the quasi- dead band of voltage
Voltage of power occur beyond the period voltage change when, by potential device carry out transformation adjustment, will output to export
The boost in voltage at end, it is depressured and is restricted in voltage dead band.If do not occurred beyond the voltage change of period, it is not necessary to
Transformation adjustment is carried out with potential device.
Thus, by changing voltage prediction device, even if voltage change prediction is had any problem, or violent voltage occurs and becomes
Change, also can more reliably carry out transformation adjustment, the voltage stabilization to output end will be exported in voltage dead band.
Therefore, it is possible to which the electric power of predeterminated voltage stably more reliably is supplied into output end.
The effect of invention
Utilize the present invention, using the teaching of the invention it is possible to provide stable-pressure device, ensure that output to the voltage of output end is voltage set in advance.
Brief description of the drawings
Fig. 1 is the line map of stable-pressure device.
Fig. 2 is the system diagram of stable-pressure device.
Fig. 3 is to represent average voltage with changing the first voltage variation diagram of voltage relationship.
Fig. 4 is to represent average voltage with changing the second voltage variation diagram of voltage relationship.
Fig. 5 is to represent average voltage with changing the tertiary voltage variation diagram of voltage relationship.
Fig. 6 is to represent average voltage with changing the 4th voltage change figure of voltage relationship.
Embodiment
The present invention is described in detail with reference to the following drawings.
Fig. 1 is the line map of stable-pressure device 1, and Fig. 2 is the system diagram of stable-pressure device 1, and Fig. 3 is display average voltage A, B, C
With the first voltage variation diagram of change voltage D relation.Specifically, Fig. 3 (a) be voltage A~D to high-voltage region change when
Voltage change figure, Fig. 3 (b) be voltage A~D to low-voltage region change when voltage change figure.
The power control unit 1 of the present invention includes：Measure the input electricity of the voltage of the electric power E from input power supply P inputs
Press measuring appliance 2, the output voltage measuring appliance 3 of measurement output to output end load F electric power E voltage, according to from voltage measurement
The voltage measurement information prediction that device 2,3 exports exports the change voltage prediction portion of the voltage change of the electric power E to output end load F
4, the potential device 5 that the voltage from power supply P is raised and lowered, and the prediction result according to change voltage prediction portion 4, control
Potential device 5 processed will export control of the extremely output end load F electric power E voltage stabilization in voltage dead band S1 set in advance
Device 6.
The incoming line 1a for connecting input power supply P passes through main breaker 7 and loop occluding device 8 and potential device 5
Input be connected.The output end that connection output end load F outlet line 1b passes through loop occluding device 9 and potential device 5
It is connected (with reference to figure 1 and Fig. 2).
Incoming line 1a between main breaker 7 and loop occluding device 8, through control loop breaker 10, with
Control input circuit 1c one end is connected.The control input circuit 1c other end is divided into 2 tunnels, respectively with equipped with control device 6
The 1st converter 6a and the 2nd converter 6b that exchange turns direct current are connected (with reference to figure 1 and Fig. 2).
Input voltage measuring appliance 2 is the input voltage measurement portion 2a of the voltage for the input being had by measuring and controlling 6
Formed with the input voltage extraction unit 2b of extraction input terminal voltage.Input voltage measurement portion 2a by cross input measurement circuit 1d with
Incoming line 1a connections between loop occluding device 8 and potential device 5.Input voltage extraction unit 2b is by inputting extraction circuit 1e
Incoming line 1a between loop occluding device 8 and potential device 5 is connected (referring to Figures 1 and 2).
Input voltage measurement portion 2a measures the voltage of the electric power E from input power supply P inputs in each stipulated time (second),
The input voltage metrical information of measurement is exported to change voltage prediction portion 4.Input voltage extraction unit 2b is in each stipulated time
The voltage for the electric power E that (second) extraction (sampling) conveying comes, meanwhile, counted with computational methods (not shown) (least square root mean square)
Calculate and measure electric power E voltage.The input voltage metrical information of its sampled measurements is exported to change voltage prediction portion 4.
Output voltage measuring appliance 3 is the output voltage measurement portion of the voltage of output end as possessed by measuring and controlling 6
What the output voltage extraction unit 3b of 3a and sampled output voltage was formed.Output voltage measurement portion 3a is by exporting measuring circuit 1f
Outlet line 1b between loop occluding device 9 and the load F of output end is connected.Output voltage extraction unit 3b is extracted by exporting
Output circuit 1b connections (referring to Figures 1 and 2) between circuit 1g and potential device 5 and loop occluding device 9.
In each stipulated time (second), measurement output extremely exports end load F electric power E voltage to output voltage measurement portion 3a,
The output voltage metrical information of measurement is exported to change voltage prediction portion 4.Output voltage extraction unit 3b is in each stipulated time
Often extract the electric power E of (sampling) output voltage.Meanwhile calculated with the computational methods (least square root mean square) not shown in figure
With measurement electric power E voltage.The output voltage metrical information of its sampled measurements is exported to the change voltage prediction of control device 6
Portion 4.
In addition, loop occluding device 8,9 is made up of magnetic switch (MGS).
Potential device 5 is by for by the step-up transformer 5a of the boost in voltage of the electric power E from input power supply P and reduction
The step-down transformer 5b of electric power E voltage is formed.Multiple tap 5a1 are provided with step-up transformer 5a periodically to enter
The boosting adjustment of each assigned voltage of row.In step-down transformer 5b be provided with multiple tap 5b1 (referring to Figures 1 and 2) with
Decompression adjustment is done to stage (- 3V) to each assigned voltage.
Step-up transformer 5a can with the boosting in control device 6 by boosting controllable silicon 11 and boosting control circuit 1h
Control silicon control unit 13 connects.Step-down transformer 5b passes through decompression controllable silicon 12 and decompression control circuit 1i and control device 6
In decompression SCR control portion 14 connect (with reference to figure 1 and Fig. 2).
Opened in boosting with multiple controllable silicons corresponding with step-up transformer 5a tap 5a1 in controllable silicon 11, are devised
Close 11a.In decompression with controllable silicon 12, devising multiple reverse-blocking tetrode thyristors corresponding with step-down transformer 5b tap 5b1
12a。
Control device 6 includes input voltage measuring appliance 2, output voltage measuring appliance 3, changes voltage prediction portion 4 (PIC), the 1st
SCR control device 14 is used in converter 6a, the 2nd converter 6b, boosting SCR control portion 13, and decompression.Change voltage
Prediction section 4 can block the loop occluding device 15 in loop to be connected (with reference to figure 1 and Fig. 2) with when electric power E voltage occurs abnormal.
Change voltage prediction portion 4 be built-in with the electric power E1 drivings exported with rectification circuit 14 described later CPU (not shown),
ROM、RAM.CPU is to control the work of all parts and stopping according to the program stored in ROM.Measured according to input voltage
The voltage measurement information that the input voltage metrical information and output voltage measuring appliance 3 that device 2 exports export, prediction output to output end
Electric power E voltage change.
According to above-mentioned prediction result, make the tap 5a1 and step-down transformer of the step-up transformer 5a in potential device 5
5b tap 5b1 movements, to carry out transformation adjustment, make output to the electric power E of output end voltage stabilization set in advance
In the S1 of voltage dead band.
Rectification circuit 20 is (to become the high-tension electricity E from input power supply P by transformer 21 and be depressed into AC7V~AC12V
Transformer), bridge diode 22, three terminal adjusters 23, electric capacity 24,25,26,27,28, commutation diode 29, resistance 30,
Light emitting diode 31 (green) is formed, and from exchange electric power E that power supply P is supplied is converted into direct current and pressure regulation is into suitable drive circuit
Voltage (0.5V), export to the change voltage prediction portion 4 of control device 6 (with reference to figure 2).
It is described below to export to the electric power E of output end voltage transformation using above-mentioned stable-pressure device 1 and adjusts to advance
The control method of the voltage of setting.
Represent the voltage of relation between voltage dead band S1 average voltage A, B, C and the quasi- dead band S2 of voltage change voltage D
Variation diagram 3 is that the voltage measurement information measured according to input voltage measuring appliance 2 and output voltage measuring appliance 3 is depicted as.
Setting time (second) is transverse axis, and voltage (V) is the longitudinal axis.It is voltage dead band S1 between setting 199V~201V.Setting
198V~199V region of the voltage less than voltage dead band S1 is the quasi- dead band S2 of voltage of low-voltage region.Setting voltage is higher than voltage
Dead band S1 201V~202V regions are the quasi- dead band S2 of voltage of high-voltage region (with reference to figure 3).
Above-mentioned voltage change figure is that the voltage measurement information measured when being worked under the following conditions according to stable-pressure device is made
's.
The wire type of transformer rated voltage 200V3 phases 3
Rated current 300A
Tap voltage 3V=tap amplitudes 3V
Step-up transformer 5a tap voltage=+ 3V ,+6V ,+9V ,+12V
Step-down transformer 5b tap voltage=- 3V, -6V, -9V, -12V
Output end voltage=200V
Tap voltage amplitude=3V
Voltage dead band S1=199V~201V
The quasi- dead band S2=198V~199V of voltage of low-voltage region
The quasi- dead band S2=201V~202V of voltage of high-voltage region
In the case where carrying out the transformation adjustment of voltage by above-mentioned condition, measured by input voltage measuring appliance 2 every one
The voltage fixed time from the electric power E of input power supply P inputs, meanwhile, measured at regular intervals by output voltage measuring appliance 3
Output extremely output end load F electric power E voltage (with reference to figure 1 and Fig. 2).
The voltage measurement information that control device 6 parses or analysis voltage measuring appliance 2,3 measures, will be in defined time of measuring
Average voltage A, B, C after the voltage that (specifically 1~5 second between) measures is average three times are recorded in the storage part not shown in figure
In (with reference to figure 3).
By average voltage A, B, C after the average voltage in the S1 of voltage dead band measured with being surveyed in the quasi- dead band S2 of voltage
The change voltage D obtained compares, and it is poor to obtain voltage change.That is, the average electricity in 5 seconds that will be obtained after the average voltage of 1 second~5 seconds
Pressure A, the average voltage B in 5 seconds obtained after the average voltage of 6 seconds~10 seconds, obtained after the average voltage of 11 seconds~15 seconds 5
Average voltage C in second and the quasi- dead band S2 of voltage change voltage D is moved to from voltage dead band S1 it is compared, obtains voltage change
Change poor (with reference to figure 3).
Change voltage measurement information of the voltage prediction portion 4 according to the storage part member record of control device 6, predicted voltage is accurate dead
How change voltage D in area S2 changes.
That is, the change voltage D of the quasi- dead band S2 of average voltage A, B, C and voltage in the S1 of comparison voltage dead band, predicted voltage
Change, as the change voltage D in the quasi- dead band S2 of voltage and average voltage A, B, C directions as one man move to high-voltage regionAlso
It is that change voltage D as one man moves with average voltage A, B, C directions to low-voltage regionOr return to voltage change before
Voltage dead band S1 etc. (with reference to figure 3 (a) (b)).
In the case of voltage change occurs in the quasi- dead band S2 of voltage, control device 6 becomes Voltage measure 2,3 in voltage
Past interval 5 seconds 3 average voltages A, B, C for measuring and being recorded in storage part before change average voltage metrical information and electricity
Press the change voltage measurement information of the change voltage D in quasi- dead band S2 to be compared, judge the average voltage in the S1 of voltage dead band
A, whether voltage change difference is electric beyond the regulation for being stored in advance in storage part between the change voltage D in B, C and the quasi- dead band S2 of voltage
More than pressure (specifically about more than 0.5V).
The voltage measurement information that change voltage prediction portion 4 measures according to Voltage measure 2,3, prediction output to output end are born
Lotus F electric power E voltage change.Control device 6 controls potential device 5 according to the prediction result in change voltage prediction portion 4, judges
Which of step-up transformer 5a tap 5a1 and step-down transformer 5b tap 5b1 will be moved.
As the condition of specific tap movement, as voltage change difference about more than the 0.5V between average voltage A, B, C,
During voltage change difference about more than 1V between average voltage A, C, occurring to be moved to the quasi- dead band S2's of voltage from voltage dead band S1
In the case of voltage change, if the voltage change difference between average voltage C and change voltage D is about more than 0.5V, pass through liter
Pressure transformer 5a and step-down transformer 5b carries out transformation adjustment (with reference to figure 3 (a) (b)).
According to the result of the prediction of change voltage prediction portion 4, mobile step-up transformer 5a tap 5a1 or step-down transformer
5b tap 5b1 etc. carries out transformation adjustment, to raise or reduce the voltage of the electric power E from input power supply P inputs, makes defeated
Go out to output end load F electric power E voltage and return in voltage dead band S1 set in advance.
It is being moved to from voltage dead band S1 set in advance from the electric power E of input power supply P inputs voltage in prediction
During the quasi- dead band S2 of the voltage of high-voltage region, step-down transformer 5b tap 5b1 moves necessary amount to carry out decompression adjustment,
Output to the voltage for the electric power E for exporting end load F is set to recover to the S1 of voltage dead band.
Moved from voltage dead band S1 set in advance in the voltage predicted from the electric power E of input power supply P inputs
To low-voltage region voltage quasi- dead band S2 when, step-up transformer 5a tap 5a1 moves necessary amount to carry out boosting tune
It is whole, output to the voltage for the electric power E for exporting end load F is recovered to the S1 of voltage dead band.
When being judged as output, to output end load F electric power E voltage, from voltage dead band, to be changed to voltage accurate extremely by S1
Area S2, but it is stable in the S1 of voltage dead band when, it is not necessary to the step-up transformer 5a and downconverter of mobile potential device 5
Device 5b.
So it is ensured that output to output end load F electric power E voltage is stabilization set in advance in voltage dead band
Voltage in S1.
As a result, the electric power E for presetting voltage more reliably can be stably provided to the load F of output end.
Moreover, the voltage amplitude of step-up transformer 5a tap 5a1 and step-down transformer 5b tap 5b1 tap
Degree is set as 2V, and compared with transformer of the tap voltage amplitude set in more than 2V, tap 5a1,5b1 movement are smaller.
This makes it possible to accurately carry out transformation adjustment, output to the electric power E of output end voltage is set to control advance
In the voltage dead band S1 of setting, while improve the overall durability of transformer.
Further, tap 5a1,5b1 tap voltage amplitude can also be set in below 2V (1V either 0.5V),
Because speed when transformation adjusts accelerates, it becomes possible to which more precisely transformation adjusts.This makes it possible to be more reliably prevented from precision
Equipment and electronic equipment etc. break down and insufficiency.
Further, tap 5a1,5b1 tap voltage amplitude can also be set in more than 2V, because transformation is adjusted
Slowing when whole, electric power E that can be as driving such as large-scale machinery or device are used.
Further, voltage dead band S1 voltage regime can be moved into low-voltage region or high-voltage region,
, can because the regional change with voltage dead band S1 accordingly makes the quasi- dead band S2 movements of the voltage of low-voltage region and high-voltage region
Transformation adjustment is carried out on the basis of the voltage dead band S1 changed by voltage regime, will be exported exactly to the electric power E of output end
Voltage stabilization in voltage dead band S1 set in advance.
It is the explanation on the other examples of above-mentioned stable-pressure device 1 below.In this explanation, as above-mentioned composition or
Identical position can assign identical symbol, and description is omitted.
(embodiment 2)
In the above embodiments 1, when unidirectional voltage change occurs to voltage A~D, prediction electric power E voltage
Stable-pressure device 1 of the voltage stabilization in the S1 of voltage dead band is illustrated with carrying out transformation adjustment for change.In example 2,
As shown in figure 4, average voltage C and change voltage D are anti-in the case of for changing in voltage from average voltage A to average voltage B
The stable-pressure device 1 that transformation adjustment is carried out during the voltage change of direction illustrates.
Fig. 4 is to show average voltage A, B, C with changing the second voltage variation diagram of voltage D relations.Specifically, Fig. 4 (a) is
The quasi- dead band S2 of the voltage of voltage C, D to high-voltage region carries out voltage change figure during voltage change, Fig. 4 (b) be voltage C, D to
The quasi- dead band S2 of voltage of low-voltage region carries out voltage change figure during voltage change.
In the stable-pressure device 1 of embodiment 2, as specific tap mobile condition, with the voltage between average voltage A, B
Difference in change is unrelated, and average voltage B such cases, average voltage B, C of changing inversely are changed to from average voltage A for voltage
Between voltage change difference about more than 1V, occur from voltage dead band S1 be changed to voltage quasi- dead band S2 when, if passing through change
Voltage prediction portion 4 predicts average voltage C and voltage change difference about more than the 0.5V changed between voltage D, then passes through transformation of boosting
Device 5a and step-down transformer 5b carries out transformation adjustment (with reference to figure 4).
According to the prediction result in change voltage prediction portion 4, mobile step-up transformer 5a tap 5a1 or mobile decompressions become
Depressor 5b tap 5b1 etc. raises or reduced the voltage from the electric power E of input power supply P inputs to carry out transformation adjustment,
Make output to the voltage stabilization for the electric power E for exporting end load F in voltage dead band S1 set in advance.
When output, extremely not from voltage dead band, S1 is moved to the quasi- dead band S2 of voltage to output end load F electric power E voltage, but
When stabilization is in the S1 of voltage dead band, it is not necessary to the step-up transformer 5a and step-down transformer 5b of mobile potential device 5 point
Joint.
Thereby, it is possible to ensure that output to the load F of output end electric power E voltage is that stabilization set in advance is dead in voltage
Voltage in area S1.
As a result, the electric power E for presetting voltage more reliably can be stably provided to the load F of output end.Cause
This, can also play the functions and effects in embodiment 1.
(embodiment 3)
In above-described embodiment 1 and 2, transformation is carried out to prediction output to output end load F electric power E voltage change
Adjustment is so that stable-pressure device 1 of the voltage stabilization in the S1 of voltage dead band is illustrated.The stable-pressure device illustrated in embodiment 3
As shown in figure 5, the continuous measurement change voltage D in the quasi- dead band S2 of voltage, is predicted so as to carry out transformation adjustment.
Fig. 5 is the tertiary voltage variation diagram for showing average voltage A, B, C and changing relation between voltage D.Specifically become
Change voltage change figure when voltage D is continuously measured.
The stable-pressure device of embodiment 3, with the timing (not shown) being built in the change voltage prediction portion 4 of control device 6
The change voltage D being measured in device dead band S2 quasi- to voltage carries out timing, meanwhile, constantly with being stored in storage part (not shown)
The time of measuring of past voltage and the time of measuring of the current voltage measured by Voltage measure 2,3 are compared, and prediction becomes
Whether change voltage D time of measuring will grow (with reference to figure 5) than being stored in advance in the stipulated time (e.g., from about 3 seconds) of storage part.
In control device 6, when change voltage prediction portion 4 predicts the measurement of the change voltage D in the quasi- dead band S2 of voltage
When time is longer than the stipulated time set in advance (such as from about 3 seconds), control device 6, according to the prediction in change voltage prediction portion 4
As a result, tap 5a1 or mobile step-down transformers 5b tap 5b1 of the step-up transformer 5a in mobile potential device 5 etc.
Rise reduces the voltage from the electric power E of input power supply P inputs to carry out transformation adjustment, makes output to the load of output end
F electric power E voltage stabilization is in the S1 of voltage dead band (with reference to figure 5).
When predicting the time of measuring for the change voltage D being measured in the quasi- dead band S2 of voltage than time of measuring set in advance
(such as from about 3 seconds) will be in short-term, it is not necessary to the step-up transformer 5a and step-down transformer 5b of mobile potential device 5 tap.
Thus it is ensured that output to the load F of output end electric power E voltage is that stabilization set in advance is dead in voltage
Voltage in area S1.
As a result, the electric power E for presetting voltage more reliably can be stably provided to the load F of output end.Cause
This, can play the functions and effects in Examples 1 and 2.
(embodiment 4)
In above-described embodiment 1~3, transformation adjustment is carried out so that voltage stabilization to be existed to predicting electric power E voltage change
Stable-pressure device 1 in the S1 of voltage dead band is illustrated.And in example 4, to as shown in Figure 6 when in the quasi- dead band S2 of voltage
The steady of transformation adjustment is carried out when the electric power E of interior measurement voltage V5 is there occurs beyond the drastically voltage change for presetting the period
Pressure device 1 illustrates.
Fig. 6 is the 4th voltage change figure of the relation for the voltage change and time for showing voltage V1~V5.Specifically, scheme
6 (a) is voltage change figure when voltage change occurs for voltage V1~V5, and Fig. 6 (b) is period between voltage V1~V5 in voltage
Transformation period section figure during change.
In the stable-pressure device 1 of embodiment 4, pass through input voltage measuring appliance 2 and output electricity within the time set in advance
Pressure measuring appliance 3 measures the voltage and the electric power E exported to output end load F voltage from the electric power E of input power supply P inputs
When, control device 6 by by the period of the Voltage measure 2,3 during timer (not shown) with being stored in (not shown) deposit
Time in storage portion is compared, and whether the time for voltage V1~V5 that judgement Voltage measure 2,3 measures presets
Stipulated time (be specifically 500m/s) (with reference to figure 6 (a) and (b)).
When the electric power E measured in the quasi- dead band S2 of voltage voltage V5 generations exceed the voltage of period set in advance drastically
When change, by rises such as mobile step-up transformer 5a tap 5a1 or mobile step-down transformers 5b tap 5b1 or
Person reduces the voltage of the electric power E from input power supply P inputs, and the adjustment of this transformation makes output to the electricity for the electric power E for exporting end load F
Pressure stabilization is in voltage dead band S1 set in advance (with reference to figure 6).
If the electric power E measured in the quasi- dead band S2 of voltage voltage V1~V5 becomes without the voltage occurred beyond the period
Change, it is not necessary to the step-up transformer 5a and step-down transformer 5b of mobile potential device 5 tap.
So, even if being had any problem by changing the predicted voltage change of voltage prediction portion 4, or the voltage occurred drastically becomes
Change, also can be by the electric power E of output end load F outputs voltage, more reliably transformation is adjusted to stable in electricity set in advance
Kill the voltage in area S1.
As a result, the electric power E for presetting voltage more reliably can be stably provided to the load F of output end.Cause
This, can play the functions and effects in embodiment 1~3.
In example 4, it is the voltage change width of voltage in conventional voltage dead band S1 as the condition that tap does not move
Very little is spent, voltage change drastically occurs in the quasi- dead band S2 of voltage without moving tap immediately.Its reason is main
It is that drastically voltage change is likely to the voltage dead band S1 returned to before voltage change.
In addition, the condition as tap movement, the voltage change amplitude of voltage is roughly the same in conventional voltage dead band S1,
Even if voltage change has been arrived in the quasi- dead band S2 of voltage, voltage change drastically will not also occur in the quasi- dead band S2 of voltage, so
Voltage A~D voltage change amplitude is roughly the same to be vary.In this condition, it is accurate dead to voltage when voltage change occurs
When in area S2, tap will move immediately.
The composition of the present invention, it is corresponding with above-mentioned embodiment.
The input voltage measurement apparatus of the present invention is corresponding with the input voltage measuring appliance 2 in embodiment,
It is same below,
Output voltage measurement apparatus corresponds to output voltage measuring appliance 3,
Change voltage prediction device and correspond to change voltage prediction portion 4,
Potential device corresponds to potential device 5,
Control device corresponds to control device 6,
The invention is not restricted to above-mentioned embodiment, can be applied according to technological thought expressed in claim,
More embodiments can be obtained.
Above-mentioned voltage dead band S1 and the quasi- dead band S2 of voltage can also change into such as high-voltage region or low-voltage region
Deng the region after change can also be set to voltage dead band S1 and the quasi- dead band S2 of voltage.
Further, the composition of embodiment 1~4 can also be multiple combinations, can also carry out more accurately transformation adjustment and think
The load F of output end provides the stable voltage in voltage dead band S1 set in advance, while also can more reliably provide steady
The fixed electric power E for presetting voltage.
Symbol description
P power supplys
E electric power
F loads
S1 voltage dead bands
The quasi- dead band of S2 voltages
1 stable-pressure device
2 input voltage measuring appliances
2a input voltage measurement portions
2b input voltage extraction units
3 output voltage measuring appliances
3a output voltage measurement portions
3b output voltage extraction units
4 change voltage prediction portions
5 potential devices
5a step-up transformers
5b step-down transformers
5a1,5b1 tap
6 control devices
Claims (5)
1. stable-pressure device, it will be limited from the voltage of power that input is exported to output end to voltage dead band set in advance, institute
Stating stable-pressure device includes：
The input voltage measurement apparatus of the voltage of power from input input is measured,
Measurement is exported to the output voltage measurement apparatus of the voltage of power of the output end,
The voltage measurement information measured according to each voltage measuring apparatus, the change for predicting the voltage of power are to than described
The quasi- dead band change of the low voltage in voltage dead band or the change voltage changed to the voltage quasi- dead band higher than the voltage dead band are pre-
Survey device,
The potential device of the voltage of power is raised or reduces,
According to the prediction result of the change voltage prediction device, the potential device is controlled to export to the electricity of output end
Control device of the voltage stabilization of power in voltage dead band set in advance.
2. the stable-pressure device described in claim 1, is arranged to：The voltage of power measured in the voltage dead band is averaged
In the case that the change voltage of electric power of the voltage with being measured in the quasi- dead band of the voltage changes to equidirectional, the change voltage
The voltage change difference that prediction meanss are predicted between the average voltage and the change voltage has the change more than assigned voltage
During change, according to the prediction result of the change voltage prediction device, the potential device is controlled using the control device.
3. the stable-pressure device described in claim 1, is arranged to：The voltage of the electric power measured in the quasi- dead band of the voltage becomes
The voltage change direction phase of average voltage after changing the voltage of power measured towards in relative to the voltage dead band averagely
In the case that anti-direction is changed, the average voltage and the change electricity are predicted in the change voltage prediction device
When voltage change difference between pressure exceeds voltage change more than assigned voltage, according to the pre- of the change voltage prediction device
Result is surveyed, the potential device is controlled by the control device.
4. the stable-pressure device described in claim 1, is arranged to：In the electricity of the continuous stipulated time measurement electric power in the quasi- dead band of the voltage
Pressure, predicted by the change voltage prediction device, according to the prediction result of the change voltage prediction device, pass through the control
Device processed controls the potential device.
5. the stable-pressure device described in claim 1, is arranged to：The shape of the voltage of power is being measured by the period set in advance
Under state, when the voltage of power measured in the quasi- dead band of the voltage is occurred beyond the voltage change of the period, pass through
The control device controls the potential device.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2016/082625 WO2018083761A1 (en) | 2016-11-02 | 2016-11-02 | Voltage stabilizing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107820586A true CN107820586A (en) | 2018-03-20 |
| CN107820586B CN107820586B (en) | 2019-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| WO (1) | WO2018083761A1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09331633A (en) * | 1996-06-11 | 1997-12-22 | Toshiba Corp | Automatic voltage/reactive power controller |
| WO2003047065A1 (en) * | 2001-11-28 | 2003-06-05 | Kazuhiro Nishi | Voltage controller |
| CN101196752A (en) * | 2006-12-04 | 2008-06-11 | 井上和一 | Voltage stabilizer |
| JP2010033144A (en) * | 2008-07-25 | 2010-02-12 | Kazuichi Inoue | Voltage stabilizer |
| CN103078530A (en) * | 2012-12-29 | 2013-05-01 | 东南大学 | Digital power factor converter with fast transient response function and control method of digital power factor converter |
| CN206524772U (en) * | 2017-01-11 | 2017-09-26 | 苏州梦尔端电气科技有限公司 | Stable-pressure device |
-
2016
- 2016-11-02 CN CN201680002034.1A patent/CN107820586B/en active Active
- 2016-11-02 WO PCT/JP2016/082625 patent/WO2018083761A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09331633A (en) * | 1996-06-11 | 1997-12-22 | Toshiba Corp | Automatic voltage/reactive power controller |
| WO2003047065A1 (en) * | 2001-11-28 | 2003-06-05 | Kazuhiro Nishi | Voltage controller |
| CN101196752A (en) * | 2006-12-04 | 2008-06-11 | 井上和一 | Voltage stabilizer |
| JP2010033144A (en) * | 2008-07-25 | 2010-02-12 | Kazuichi Inoue | Voltage stabilizer |
| CN103078530A (en) * | 2012-12-29 | 2013-05-01 | 东南大学 | Digital power factor converter with fast transient response function and control method of digital power factor converter |
| CN206524772U (en) * | 2017-01-11 | 2017-09-26 | 苏州梦尔端电气科技有限公司 | Stable-pressure device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018083761A1 (en) | 2018-05-11 |
| CN107820586B (en) | 2019-11-19 |
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