CN106772207A - The keying active power signal generation device of voltage and current synchronization - Google Patents
The keying active power signal generation device of voltage and current synchronization Download PDFInfo
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- CN106772207A CN106772207A CN201611250605.1A CN201611250605A CN106772207A CN 106772207 A CN106772207 A CN 106772207A CN 201611250605 A CN201611250605 A CN 201611250605A CN 106772207 A CN106772207 A CN 106772207A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/005—Calibrating; Standards or reference devices, e.g. voltage or resistance standards, "golden" references
- G01R35/007—Standards or reference devices, e.g. voltage or resistance standards, "golden references"
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Abstract
The invention provides a kind of voltage and the keying active power signal generation device of current synchronization, the device includes three-phase voltageU NInput terminal, three-phase currentI NInput terminal, dynamic electric voltage control unit, dynamic current control unit, control terminal and three-phase voltage current lead-out terminal.Dynamic electric voltage control unit drives Group of Silicon Controlled Rectifier alternate conduction by the way of threephase potential transformer is connected respectively with two voltage control Group of Silicon Controlled Rectifier by control signal CON1, CON2, produces dynamic electric voltage；Dynamic current control unit drives Group of Silicon Controlled Rectifier alternate conduction by the way of threephase current transformer is connected respectively with two current control Group of Silicon Controlled Rectifier by control signal CON3, CON4, produces dynamic current.The present invention is synchronous with CON1, CON4 and CON2 by control signal CON3, realize the synchronism output of dynamic electric voltage and dynamic current, solve the problems, such as to be only capable of carrying out electric energy meter dynamic characteristic test under the conditions of dynamic current at present, have extensive use in electric energy meter dynamic characteristic test field.
Description
Technical field
The invention belongs to electric energy meter technical field of measurement and test, it is related to the keying active power signal of a kind of voltage and current synchronization
The keying active power signal of generation device, more particularly to a kind of voltage for electric energy meter dynamic characteristic test and current synchronization
Generation device.
Background technology
At present, with the construction and development of China's intelligent grid, the quantity and power of dynamic load are continuously increased in power network,
The non-linear of dynamic load, impact and uncertainty cause metering of the electric energy meter to dynamic load consumption electric energy inaccurate, enter
And influence the fairness of electric energy charge.This problem tends to serious with the increase of dynamic load, causes area research personnel
Attention.At present, the dynamic characteristic of intelligent electric energy meter and electronic electric energy meter only can be in steady state voltage and dynamic current condition
It is lower to complete test；And dynamic test voltage how is produced, and the dynamic testing current synchronous with dynamic test voltage, realize dynamic
The dynamic characteristic test of electric energy meter under state voltage change condition synchronous with dynamic current, it would be highly desirable to effectively solved.The present invention
The voltage being related to provides a kind of effective to solve this problem with the keying active power signal generation device of current synchronization
Method.
The content of the invention
Present invention aim to address how producing dynamic electric voltage, and the synchronization of dynamic electric voltage and dynamic current is realized,
The technical problem of electric energy meter dynamic characteristic test is carried out under conditions of dynamic electric voltage and dynamic current synchronization, and has invented a kind of electricity
The keying active power signal generation device of pressure and current synchronization.
The present invention solves the technical scheme that is used of the technical problem：A kind of voltage and the dynamic work(of the keying of current synchronization
Rate signal generation device, it is characterised in that：Including three-phase voltageU NInput terminal 1, three-phase currentI NInput terminal 2, dynamic electric voltage
Control unit 11, dynamic current control unit 12, control terminal 13 and three-phase voltage current lead-out terminal 14；Three-phase voltageU NIt is defeated
Enter terminal 1 to be connected with the three-phase input of dynamic electric voltage control unit 11, three-phase currentI NInput terminal 2 controls single with dynamic current
The three-phase input connection of unit 12, the output of dynamic electric voltage control unit 11 and dynamic current control unit 12 is respectively connecting to control
Terminal 13 and three-phase voltage current lead-out terminal 14, are controlled from control terminal 13 to dynamic electric voltage control unit 11 and dynamic current
Unit 12 is input into control signal.
Dynamic electric voltage control unit 11 includes three-phase voltage conversion transformer PT 3, first voltage control Group of Silicon Controlled Rectifier 5, the
Two voltages control Group of Silicon Controlled Rectifier 6 and voltage detecting transformer 9, and dynamic current control unit 12 includes that three-phase current changes transformer
CT 4, the first current control Group of Silicon Controlled Rectifier 7, the second current control Group of Silicon Controlled Rectifier 8 and current detecting transformer 10.
The dynamic electric voltage control unit 11 of keying active power signal generation device of the present invention, it is characterised in that：Three-phase electricity
The three-phase input and three-phase voltage of pressure conversion transformer PT 3U NInput terminal 1 is connected, and 100%U NWith 80%U NThree-phase output difference
Group of Silicon Controlled Rectifier 5 and the three-phase input of second voltage control Group of Silicon Controlled Rectifier 6 is controlled to be connected in series with first voltage, first voltage control
The three-phase output of Group of Silicon Controlled Rectifier 5 and second voltage control Group of Silicon Controlled Rectifier 6 is connected in parallel respectively, connects through Zenith tracking transformer 9
Three-phase voltage current lead-out terminal 14 is connected to, first voltage is driven by control signal CON1, CON2 of control terminal 13 respectively
Control Group of Silicon Controlled Rectifier 5 and second voltage control Group of Silicon Controlled Rectifier 6 conducting and shut-off, produce dynamic test voltage, voltage detecting mutual inductance
Device 9 detects three phase dynamic test voltage, and the dynamic test voltage signal for detecting is delivered into control terminal 13.
Dynamic electric voltage control unit 11 is input into virtual valueU NThree-phase steady state voltage, first voltage control Group of Silicon Controlled Rectifier 5
(M 1+M 2) conducting output virtual value is 100% in individual power frequency periodU NVoltage, now, second voltage control Group of Silicon Controlled Rectifier 6 close
It is disconnected, then second voltage control Group of Silicon Controlled Rectifier 6 (M 1+M 2) conducting output virtual value is 80% in individual power frequency periodU NVoltage,
Now, first voltage control Group of Silicon Controlled Rectifier 5 is turned off, and it is 100% dynamic electric voltage control unit 11 is exported virtual valueU NWith 80%U NHand over
For the dynamic test voltage of change.
The dynamic current control unit 12 of keying active power signal generation device of the present invention, it is characterised in that：Three-phase electricity
The three-phase input and three-phase current of transformer CT 4 are changed in circulationI NInput terminal 2 is connected, 100%I NWith I NThree-phase output respectively with
The three-phase input of the first current control Group of Silicon Controlled Rectifier 7 and second voltage control Group of Silicon Controlled Rectifier 8 is connected in series, and the first current control can
The three-phase output of control silicon group 7 and the second current control Group of Silicon Controlled Rectifier 8 is connected in parallel respectively, is connected by current detecting transformer 10
To three-phase voltage current lead-out terminal 14, control signal CON3, CON4 of control terminal 13 drives the first current control can respectively
Control silicon group 7 and the conducting of the second current control Group of Silicon Controlled Rectifier 8 and shut-off, produce dynamic testing current, current detecting transformer 10 to examine
Three phase dynamic test electric current is surveyed, and the dynamic testing current signal of detection is delivered into control terminal 13.
Dynamic current control unit 12 is input into virtual valueI NThree-phase steady-state current, the first current control Group of Silicon Controlled Rectifier 7
M 1Conducting output virtual value is 100% in individual power frequency periodI NElectric current, now, the second current control Group of Silicon Controlled Rectifier 8 is turned off, so
The second current control Group of Silicon Controlled Rectifier 8 exists afterwardsM 2Conducting output virtual value is in individual power frequency period I NElectric current, now, first electricity
Flow control Group of Silicon Controlled Rectifier 7 is turned off, and it is 100% dynamic current control unit 12 is exported virtual valueI NWith I NThe dynamic for alternately changing
Test electric current,Value is 5% ~ 60%.
Keying active power signal generation device of the invention, it is characterised in that：The keying signal of the input of control terminal 13
In, CON1 and CON2 waveforms are anti-phase, and CON1 drives first voltage control Group of Silicon Controlled Rectifier 5, and CON2 drives second voltage control controllable
Silicon group 6；CON3 and CON4 waveforms are anti-phase, and CON3 drives the first current control Group of Silicon Controlled Rectifier 7, and CON4 the second current controls of driving can
Control silicon group 8；CON3 and CON1 is synchronous, CON4 and CON2 synchronizations, and the cycle of dynamic test voltage is be input into the power frequency component cycle 2
(M 1+M 2) times, cycle of dynamic testing current be input into the power frequency component cycle (M 1+M 2) times,M 1WithM 2It is integer.
Brief description of the drawings
Fig. 1：It is voltage of the present invention and the pie graph of the keying active power signal generation device of current synchronization；
In figure：1- three-phase voltagesU NInput terminal, 2- three-phase currentsI NInput terminal, 3- three-phase voltages conversion transformer PT, 4-
Three-phase current conversion transformer CT, 5- first voltage control Group of Silicon Controlled Rectifier, 6- second voltages control Group of Silicon Controlled Rectifier, the electric currents of 7- first
Control Group of Silicon Controlled Rectifier, 8- the second current control Group of Silicon Controlled Rectifier, 9- voltage detecting transformers, 10- current detecting transformers, 11- is moved
State voltage control unit, 12- dynamic current control units, 13- control terminals, 14- voltage x current lead-out terminals；
Fig. 2：The dynamic electric voltage and dynamic exported for the keying active power signal generation device of voltage of the present invention and current synchronization
Current waveform figure；
Fig. 3：Keying signal form when being worked for the keying active power signal generation device of voltage of the present invention and current synchronization
Figure.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the pie graph of thyristor regulating dynamic output control device of the present invention, and the present invention is by three-phase voltageU NInput terminal 1, three-phase currentI NInput terminal 2, dynamic electric voltage control unit 11, dynamic current control unit 12, control terminal
13 and three-phase voltage current lead-out terminal 14 constitute, dynamic electric voltage control unit 11 include three-phase voltage conversion transformer PT 3,
First voltage control Group of Silicon Controlled Rectifier 5, second voltage control Group of Silicon Controlled Rectifier 6 and voltage detecting transformer 9, dynamic current control unit
12 include three-phase current conversion transformer CT 4, the first current control Group of Silicon Controlled Rectifier 7, the second current control Group of Silicon Controlled Rectifier 8 and electricity
Stream detection transformer 10.
The three-phase input and three-phase voltage of three-phase voltage conversion transformer PT 3 in dynamic electric voltage control unit 11U NInput
Terminal 1 is connected, 100%U NWith 80%U NThree-phase output controls Group of Silicon Controlled Rectifier 5 and second voltage control controllable silicon with first voltage respectively
The three-phase input of group 6 is connected in series, the three-phase output of first voltage control Group of Silicon Controlled Rectifier 5 and second voltage control Group of Silicon Controlled Rectifier 6
It is connected in parallel respectively, three-phase voltage current lead-out terminal 14 is connected to through Zenith tracking transformer 9, by 13 points of control terminal
Qu Dong not first voltage control Group of Silicon Controlled Rectifier 5 and second voltage control Group of Silicon Controlled Rectifier 6 conducting and shut-off, voltage detecting transformer 9
Detection three phase dynamic voltage, and the dynamic voltage signal of detection is delivered into control terminal 13.
The three-phase input and three-phase current of three-phase current conversion transformer CT 4 in dynamic current control unit 12I NInput
Terminal 2 is connected, 100%I NWith I NThree-phase output controls Group of Silicon Controlled Rectifier 8 with the first current control controllable silicon 7 and second voltage respectively
Three-phase input be connected in series, the three-phase of the first current control Group of Silicon Controlled Rectifier 7 and the second current control Group of Silicon Controlled Rectifier 8 output difference
It is connected in parallel, three-phase voltage current lead-out terminal 14 is connected to by current detecting transformer 10, by the control of control terminal 13
Signal processed drives the first current control Group of Silicon Controlled Rectifier 7 and the conducting of the second current control Group of Silicon Controlled Rectifier 8 and shut-off, current detecting respectively
Transformer 10 detects three phase dynamic electric current, and the dynamic current signal of detection is delivered into control terminal 13.
The present invention when in use, three-phase voltageU NInput terminal 1, three-phase currentI NInput terminal 2 is input into by three-phase mark respectively
The metastability exchange voltage that quasi- power source is providedU NWith metastability exchange electric currentI N.Three-phase voltage conversion transformer PT 3 realizes stable state electricity
The RMS-DC converter of pressure, output virtual value is 100%U NWith 80%U NVoltage deliver to first voltage control Group of Silicon Controlled Rectifier 5, the respectively
Two voltages control Group of Silicon Controlled Rectifier 6；Three-phase current conversion transformer CT 4 realizes the RMS-DC converter of steady-state current, exports virtual value
It is 100%I NWith I NElectric current deliver to the first current control Group of Silicon Controlled Rectifier 7, the second current control Group of Silicon Controlled Rectifier 8 respectively.By controlling
Terminal 13 is input into synchronous keying signal CON1, CON2, CON3 and CON4, wherein, control signal CON1, CON2 drives respectively
One voltage controls Group of Silicon Controlled Rectifier 5 and second voltage control Group of Silicon Controlled Rectifier 6, dynamic electric voltage control unit 11 is exported virtual value and is
100%U N、80%U NThe voltage for alternately changing；Control signal CON3 and CON4 drive the first current control Group of Silicon Controlled Rectifier 7 and respectively
Two current control Group of Silicon Controlled Rectifier 8, it is 100% dynamic current control unit 12 is exported virtual valueI N、 I NThe electric current for alternately changing.
Voltage detecting transformer 9 detects three phase dynamic test voltage, and the dynamic test voltage signal for detecting is delivered into control terminal 13,
The detection three phase dynamic test electric current of current detecting transformer 10, and the dynamic testing current signal of detection is delivered into control terminal
13.Dynamic test voltage, dynamic testing current are delivered to tested electric energy meter by three-phase voltage current lead-out terminal 14, produce keying to move
State power signal.
The dynamic electric voltage control unit 11 of apparatus of the present invention is using the 100% of three-phase voltage conversion transformer PT 3U NWith 80%U NThree-phase exports the mode connected respectively with first voltage control Group of Silicon Controlled Rectifier 5, second voltage control Group of Silicon Controlled Rectifier 6, dynamic electric
Flow control unit 12 is using the 100% of three-phase current conversion transformer CT 4I NWith I NThree-phase output is controllable with the first current control
The mode that silicon group 7, the second current control Group of Silicon Controlled Rectifier 8 are connected respectively, Fig. 3 is the keying signal of the input of control terminal 13, first
Control signal CON1 drives first voltage control Group of Silicon Controlled Rectifier 5 to turn on, CON2 drives second voltage control Group of Silicon Controlled Rectifier 6 to turn off,
The output virtual value of dynamic electric voltage control unit 11 is 100%U NVoltage, meanwhile, control signal CON3 drive the first current control
Group of Silicon Controlled Rectifier 7 is turned on, CON4 drives the second current control Group of Silicon Controlled Rectifier 8 to turn off, the output virtual value of dynamic current control unit 12
It is 100%I NElectric current；M 1After individual power frequency period, control signal CON3 drives the first current control Group of Silicon Controlled Rectifier 7 to turn off, CON4 drives
Dynamic second current control Group of Silicon Controlled Rectifier 8 is turned on, and output virtual value is I NElectric current；M 2After individual power frequency period, control signal CON1
First voltage control Group of Silicon Controlled Rectifier 5 is driven to turn off, CON2 drives second voltage control Group of Silicon Controlled Rectifier 6 to turn on, output virtual value is
80%U NVoltage, meanwhile, control signal CON3 drive the first current control Group of Silicon Controlled Rectifier 7 turn on, CON4 drive the second electric current control
Group of Silicon Controlled Rectifier processed 8 is turned off, and output virtual value is 100%I NElectric current；M 1After individual power frequency period, control signal CON3 drives the first electricity
Flow control Group of Silicon Controlled Rectifier 7 is turned off, CON4 drives the second current control Group of Silicon Controlled Rectifier 8 to turn on, and output virtual value is I NElectric current,
Finally, dynamic electric voltage control unit 11 output the cycle be 2 (M 1+M 2) dynamic test voltage, dynamic current control unit 12 exports
Cycle for (M 1+M 2) dynamic testing current.Output dynamic electric voltage, dynamic current waveform it is as shown in Figure 2.
The preferred embodiments of the present invention are the foregoing is only, is not intended to limit the invention, it is clear that those skilled in the art
Member can carry out various changes and modification without departing from the spirit and scope of the present invention to the present invention.So, if of the invention
These modifications and modification belong within the scope of the claims in the present invention and its equivalent technologies, then the present invention is also intended to comprising these
Including change and modification.
Claims (6)
1. the keying active power signal generation device of a kind of voltage and current synchronization, it is characterised in that：Including three-phase voltageU NIt is defeated
Enter terminal（1）, three-phase currentI NInput terminal（2）, dynamic electric voltage control unit（11）, dynamic current control unit（12）, control
Terminal processed（13）And three-phase voltage current lead-out terminal（14）；Three-phase voltageU NInput terminal（1）With dynamic electric voltage control unit
（11）Three-phase input connection, three-phase currentI NInput terminal（2）With dynamic current control unit（12）Three-phase input connection,
Dynamic electric voltage control unit（11）With dynamic current control unit（12）Output be respectively connecting to control terminal（13）And three-phase
Voltage x current lead-out terminal（14）, by control terminal（13）To dynamic electric voltage control unit（11）With dynamic current control unit
（12）Input control signal；
The dynamic electric voltage control unit（11）Including three-phase voltage conversion transformer PT（3）, first voltage control Group of Silicon Controlled Rectifier
（5）, second voltage control Group of Silicon Controlled Rectifier（6）With voltage detecting transformer（9）, dynamic current control unit（12）Including three-phase electricity
Transformer CT is changed in circulation（4）, the first current control Group of Silicon Controlled Rectifier（7）, the second current control Group of Silicon Controlled Rectifier（8）It is mutual with current detecting
Sensor（10）.
2. the keying active power signal generation device of voltage according to claim 1 and current synchronization, it is characterised in that：
Three-phase voltage conversion transformer PT（3）Three-phase input and three-phase voltageU NInput terminal（1）Connection, 100%U NWith 80%U NThree-phase
Output controls Group of Silicon Controlled Rectifier with first voltage respectively（5）Group of Silicon Controlled Rectifier is controlled with second voltage（6）Three-phase input be connected in series,
First voltage controls Group of Silicon Controlled Rectifier（5）Group of Silicon Controlled Rectifier is controlled with second voltage（6）Three-phase output be connected in parallel respectively, by electricity
Pressure detection transformer（9）It is connected to three-phase voltage current lead-out terminal（14）, control terminal（13）Control signal CON1, CON2
First voltage control Group of Silicon Controlled Rectifier is driven respectively（5）Group of Silicon Controlled Rectifier is controlled with second voltage（6）Conducting and shut-off, produce dynamic to survey
Examination voltage, voltage detecting transformer（9）Detection three phase dynamic test voltage, and the dynamic test voltage signal for detecting is delivered into control
Terminal processed（13）.
3. the keying active power signal generation device of voltage according to claim 1 and 2 and current synchronization, its feature exists
In dynamic electric voltage control unit（11）Being input into virtual value isU NThree-phase steady state voltage, first voltage control Group of Silicon Controlled Rectifier（5）
(M 1+M 2) conducting output virtual value is 100% in individual power frequency periodU NVoltage, now, second voltage control Group of Silicon Controlled Rectifier（6）Close
Disconnected, then second voltage controls Group of Silicon Controlled Rectifier（6）(M 1+M 2) conducting output virtual value is 80% in individual power frequency periodU NElectricity
Pressure, now, first voltage control Group of Silicon Controlled Rectifier（5）Shut-off, makes dynamic electric voltage control unit（11）Output virtual value is 100%U N
With 80%U NThe dynamic test voltage for alternately changing.
4. the keying active power signal generation device of voltage according to claim 1 and current synchronization, it is characterised in that：
Three-phase current conversion transformer CT（4）Three-phase input and three-phase currentI NInput terminal（2）Connection, 100%I NWith I NThree-phase
Output respectively with the first current control Group of Silicon Controlled Rectifier（7）With the second current control Group of Silicon Controlled Rectifier（8）Three-phase input be connected in series,
First current control Group of Silicon Controlled Rectifier（7）With the second current control Group of Silicon Controlled Rectifier（8）Three-phase output be connected in parallel respectively, by electricity
Stream detection transformer（10）It is connected to three-phase voltage current lead-out terminal（14）, control terminal（13）Control signal CON3,
CON4 drives the first current control Group of Silicon Controlled Rectifier respectively（7）With the second current control Group of Silicon Controlled Rectifier（8）Conducting and shut-off, produce dynamic
State tests electric current, current detecting transformer（10）Detection three phase dynamic test electric current, and the dynamic testing current signal that will be detected
Deliver to control terminal（13）.
5. the keying active power signal generation device of the voltage according to claim 1 or 4 and current synchronization, its feature exists
In：Dynamic current control unit（12）Being input into virtual value isI NThree-phase steady-state current, the first current control Group of Silicon Controlled Rectifier（7）M 1Conducting output virtual value is 100% in individual power frequency periodI NElectric current, now, the second current control Group of Silicon Controlled Rectifier（8）Shut-off, so
Second current control Group of Silicon Controlled Rectifier afterwards（8）M 2Conducting output virtual value is in individual power frequency period I NElectric current, now, first
Current control Group of Silicon Controlled Rectifier（7）Shut-off, makes dynamic current control unit（12）Output virtual value is 100%I NWith I NAlternately change
Dynamic testing current,Value is 5% ~ 60%.
6. voltage and the keying active power signal generation device of current synchronization according to claim 1,2 or 4, its feature
It is：Control terminal（13）In the keying signal of input, CON1 and CON2 waveforms are anti-phase, and CON1 drives first voltage control controllable
Silicon group（5）, CON2 driving second voltage control Group of Silicon Controlled Rectifier（6）；CON3 and CON4 waveforms are anti-phase, and CON3 drives the first electric current control
Group of Silicon Controlled Rectifier processed（7）, CON4 the second current control Group of Silicon Controlled Rectifier of driving（8）；CON3 and CON1 synchronizations, CON4 and CON2 synchronizations,
The cycle of dynamic test voltage be input into the power frequency component cycle 2 (M 1+M 2) times, the cycle of dynamic testing current is input power frequency
Signal period (M 1+M 2) times,M 1WithM 2It is integer.
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| CN201611250605.1A CN106772207B (en) | 2016-12-30 | 2016-12-30 | Voltage and current synchronous keying dynamic power signal generating device |
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| CN201611250605.1A CN106772207B (en) | 2016-12-30 | 2016-12-30 | Voltage and current synchronous keying dynamic power signal generating device |
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