CN2259640Y - Equivalent vector conversion compensating AC voltage stabilizer - Google Patents
Equivalent vector conversion compensating AC voltage stabilizer Download PDFInfo
- Publication number
- CN2259640Y CN2259640Y CN 95214793 CN95214793U CN2259640Y CN 2259640 Y CN2259640 Y CN 2259640Y CN 95214793 CN95214793 CN 95214793 CN 95214793 U CN95214793 U CN 95214793U CN 2259640 Y CN2259640 Y CN 2259640Y
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- Prior art keywords
- voltage
- bcr
- circuit
- switch
- compensation
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Abstract
The utility model relates to an equivalent vector conversion compensating AC voltage stabilizer which is composed of a publicly known program controlled AC voltage stabilizer used for system voltage stabilization coarse adjustment, and a controlled silicon zero voltage (current) switch voltage regulating and power regulating circuit having output voltage transformed through equivalent vector conversion and used for system voltage stabilization fine adjustment. The output voltage of the program controlled AC voltage stabilizer is connected in series with the output voltage of the controlled silicon zero voltage (current) switch voltage regulating circuit for compensation. The utility model has the advantages of favorable load characteristics, high responding speed, high precision of voltage stabilization, small waveform distortion, wide application of input voltage, small running noise, small interfere to electric network, etc. The utility model is applied to AC voltage stabilization, voltage regulation, speed regulation, light regulation, tempering regulation, etc.
Description
The utility model relates to a kind of equipollent vectors conversion offset-type AC voltage regulator, belongs to the electric equipment field.
Traditional AC voltage regulator generally adopts auto-transformer compensation or magnetic saturation principle of stabilized voltage.Higher one-level, the electronic regulation mode of being made up of auto-transformer, saturable reactor etc. often makes the response time long because of the thermal change parameter of vacuum tube, sampling diode, or causes interference, noise and make output waveform degenerate because of magnetic saturation.
The purpose of this utility model is to overcome the deficiency of prior art and a kind of equipollent vectors conversion offset-type AC voltage regulator is provided.
The utility model is achieved in that
At first, with the output voltage U of the pressure regulation of a controllable silicon zero-voltage-switch, power regulation circuit
i' with its input voltage U
iDo the serial connection compensation, to improve the discontinuous external characteristic of its output cycle.
Secondly, the bucking voltage U that the pressure regulation of controllable silicon zero-voltage-switch, power regulation circuit are exported
i' with its input voltage U
iDo to do an equipollent vectors conversion earlier before the serial connection compensation, to improve the discontinuous bulk properties of its output cycle.
Wherein, bucking voltage U
i' phase place by a known phase reversal circuit control: work as U
i' with U
iSame phase time, bidirectional triode thyristor group BCR
A1～BCR
AnConducting, otherwise, work as U
i' with U
iWhen anti-phase, bidirectional triode thyristor group BCR
B1～BCR
BnConducting.
By above compensation and conversion, then the output bucking voltage U of the pressure regulation of controllable silicon zero-voltage-switch, power regulation circuit
i' be connected in series compensation with the output voltage of a known program control type alternating current steady voltage plug; The program control type AC voltage regulator is as " coarse adjustment " of whole voltage-stabilizing system, and the pressure regulation of controllable silicon zero-voltage-switch, power regulation circuit are as " fine tuning " of whole voltage-stabilizing system.
Accompanying drawing 1 is an embodiment circuit diagram of the present utility model.
Accompanying drawing 2 is an embodiment oscillogram of the present utility model.
The described equipollent vectors conversion of Fig. 1 offset-type AC voltage regulator comprises the program control type AC voltage-stabilizing preposition [1] that a voltage stabilized range is 220V ± 10V, a compensator transformer group B
1～B
n, a same-phase compensation bidirectional triode thyristor group BCR
A1～BCR
AnAnd reverse compensation bidirectional triode thyristor group BCR
B1～BCR
Bn
Fig. 1 circuit also comprises a control circuit [2] of being made up of known controllable silicon zero-voltage-switch, phase reversal and order delay circuit, and control circuit [2] is controlled by voltage stabilizing error sampling amplifying circuit [3] and phase detecting circuit [4].
Control circuit in Fig. 1 circuit [2] is by same-phase compensation end a
1～a
nOutput is delayed time the gating pulse of T/n in proper order with control bidirectional triode thyristor group BCR
A1～BCR
AnConducting, by reverse compensation end b
1～b
nOutput is delayed time the control of T/n and pulse in proper order with control bidirectional triode thyristor group BCR
B1～BCR
BnConducting, wherein, T is a pressure regulation, the Power Regulation cycle of the pressure regulation of controllable silicon zero-voltage-switch, power regulation circuit.
Below in conjunction with accompanying drawing the utility model is further described:
In this routine voltage-stabilizing system, a known program control type alternating current steady voltage plug is preposition as the voltage stabilizing of system, the preliminarily stabilised voltage of output 220 ± 10V; As can be seen from the figure: this with just obtain after the preposition bucking voltage Ui ' that is connected in series the pressure regulation of controllable silicon zero-voltage-switch, the power regulation circuit output of compensation of program control voltage stabilizing has been passed through an equipollent vectors conversion.
" controllable silicon zero-voltage-switch ", it except have output wave mode distortion little, little to system interference, do not pollute power supply, control accuracy height, the response speed excellent characteristic such as fast, also possessed minimum this advantage of additional power consumption simultaneously.But because it is to change the average voltage of output or power by changing conducting cycle in the unit interval, in this cycle, exist from the transition to zero of full voltage, total power.Just because of export the discontinuous of cycle, so range of application is limited in the bigger load of this class thermal inertia of temperature adjustment always.
In order in the alternating current steady voltage plug system, to use the rising star in this electric semiconductor, in the utility model, except taking output voltage U with the pressure regulation of controllable silicon zero-voltage-switch, power regulation circuit
1' with its input voltage U
iDo the serial connection compensation,, also taked another kind of measure---" equipollent vectors conversion " method of improving the discontinuous bulk properties of its output cycle to improve outside the discontinuous external characteristic measure of its output cycle.
By attached Fig. 1 and 2 as can be seen:
As transformer group B
1～B
nThe number of n was got 1 o'clock, output bucking voltage U
i' in the pressure regulation of controllable silicon zero-voltage-switch, Power Regulation period T the maximum transition value of voltage be 10～0V (a) referring to the figure of accompanying drawing 2.
If get n number＞1 (n=2,3,4 ...), can be the bucking voltage U of 10～0V just to the maximum transition value of voltage in this period T
i' bestow " equipollent vectors conversion ":
Get arbitrarily n number＞1 (n=2,3,4 ...), and with transformer group B
1～B
nElementary bidirectional triode thyristor group BCR
A1～BCR
An(BCR
B1～BCR
Bn) control trigger pulse sequential delays T/n time of extremely going up.At transformer group B
1～B
nSecondary, originally the maximum transition value of voltage is the discontinuous bucking voltage U of 10～0V in the n=1, period T
i' just be broken down into delayed time successively T/n time and amplitude of n and only be U
iThe equivalent component of '/n (referring to the last figure of accompanying drawing 2b), these components are by transformer group B
1～B
nSecondary with vector and form take out (referring to figure below of accompanying drawing 2b).New vector and the U of figure b
i' with figure a U
iThough ' the mean value compared in the period T is identical, figure bU
i' fluctuation in period T only is the 1/n of figure a, correspondingly, the uncontinuity of output cycle also obtained very big improvement.
Embodiment:
Get transformer group B
1～B
nIn the number of n be 5, the pressure regulation of controllable silicon zero-voltage-switch, Power Regulation period T be 1S, is that 220V ± 10V learns transformer group B by the voltage stabilizing output area of known program control type AC voltage-stabilizing preposition [1]
1～B
5The bucking voltage vector and the U of output
1' amplitude range should be 0V ± 10V, and single transformer B
1～B
5Only need export bucking voltage 0V ± 2V separately.
Suppose the voltage stabilizing output U of a certain moment program control type AC voltage-stabilizing preposition [1]
iBe lower than 220V, at this moment be controlled by controllable silicon zero-voltage-switch, phase reversal and the order delay circuit [2] of error sampling amplifying circuit [3] and phase detecting circuit [4], just by same-phase compensation end a
1～a
5The control conducting pulse of the output respective numbers and the 1/5S that delayed time in proper order removes to control bidirectional triode thyristor group BCR
A1～BCR
A5Sequential turn-on and from transformer group B
1～B
5Each induce the sequential difference but the identical order bucking voltage U of amplitude on secondary
i'/5, these components are from transformer B
1～B
5Secondary with vector and U
i' form take out and then and the input voltage U of homophase with it
iDo the serial connection compensation; As input voltage U
iWhen being higher than 220V, controllable silicon zero-voltage-switch, phase reversal and order delay circuit [2] are by reverse compensation end b
1～b
5The control conducting pulse pulse of the output respective numbers and 1/5 S that delayed time in proper order removes to control bidirectional triode thyristor group BCR
B1～BCR
B5Sequential turn-on and from transformer group B
1～B
5At different levels on induce the sequential difference but the identical order bucking voltage U of amplitude
i'/5, these components are from transformer B
1～B
5Secondary with vector and U
i' form take out and then and anti-phase with it input voltage U
iDo the serial connection compensation.Bucking voltage U wherein
i' size, be that number by controllable silicon zero-voltage-switch conducting cycle in voltage stabilizing error sampling amplifying circuit [3] control controllable silicon zero-voltage-switch, phase reversal and the order delay circuit [2] realizes, pressure regulation, Power Regulation period T at the controllable silicon zero-voltage-switch are in the time of 1S, if 50 cycle conductings in full, then bucking voltage U
i' amplitude reach maximal value 10V, otherwise if only cycle of conducting, then bucking voltage U
i' amplitude reach minimum value 0.2V (when the cycle get 1S, when the bucking voltage maximal value is 10V, the change in voltage of the corresponding 0.2V of each cycle of the pressure regulation of controllable silicon zero-voltage-switch, Power Regulation).This shows, the precision of voltage regulation of native system can accomplish＜0.1% and the fluctuation of instantaneous voltage is still got off less than the universal electric AC voltage regulator of 1% about 5% with waveform distortion, the precision of voltage regulation 0.2% of total output (for example 614, WY sequence) analogy within 1S, we can say, the performance of each side all had very big progress.
In brief, in the utility model, the input voltage U of the pressure regulation of controllable silicon zero-voltage-switch, power regulation circuit
iWith its output bucking voltage U
i' serial connection mutually can improve the lasting accuracy of system's output voltage and the purpose of equipollent vectors conversion promptly is bucking voltage U to the utmost
i' amplitude distortion be reduced to 1/n before the equipollent vectors conversion.
Because transformer group B
1～B
nThe power total volume only be system's rated power capacity less than 1/20, its is divided do n in this way, the number of n also can increase, their volume is very little in addition, thus the volume of complete machine equally can do suitable compactness.
The utility model compared with prior art has that load characteristic is good, a fast response time, precision of voltage regulation height, ripple The shape distortion is little, input voltage accommodation is wide, running noises is little, electrical network is disturbed the advantages such as little. Be applicable to friendship The aspects such as stream voltage stabilizing, pressure regulation, speed governing, light modulation, temperature adjustment.
Claims (2)
1. an equipollent vectors conversion offset-type AC voltage regulator is characterized in that: have an input voltage U
iWith its output voltage U
iThe pressure regulation of controllable silicon zero-voltage-switch, the power regulation circuit of the compensation of ' work serial connection.
2. have the equipollent vectors conversion offset-type AC voltage regulator of claim 1, it is characterized in that: the output voltage U of this controllable silicon zero-voltage-switch pressure regulation, power regulation circuit
i' with input voltage U
1Do to have been done the equipollent vectors conversion earlier before the serial connection compensation, the equipollent vectors translation circuit is by bidirectional triode thyristor group BCR
A1～BCR
An, BCR
B1～BCR
Bn, transformer group B
1～B
nAnd known order delay circuit, phase reversal circuit are formed; But silicon silicon zero-voltage-switch, phase reversal and order delay circuit [2] are controlled by voltage stabilizing error sampling amplifying circuit [3] and phase detecting circuit [4], as input voltage U
iBut silicon silicon zero-voltage-switch, phase reversal and order delay circuit [2] remove to control bidirectional triode thyristor group BCR by the order delay pulse of same-phase compensation end a1～an output respective numbers when being lower than 220V
A1～BCR
AnSequential turn-on and from transformer group B
1～B
nEach induce the sequential difference but the identical order bucking voltage U ' of amplitude on secondary
i/ n, these components are from transformer B
1～B
nSecondary with vector and U '
iForm take out and then and the input voltage U of homophase with it
iDo the serial connection compensation; As input voltage U
iWhen being higher than 220V, controllable silicon zero-voltage-switch, phase reversal and order delay circuit [2] are by reverse compensation end b
1～b
nThe order delay pulse of output respective numbers removes to control bidirectional triode thyristor group BCR
B1～BCR
BnSequential turn-on and from transformer group B
1～B
nEach induce the sequential difference but the identical order bucking voltage U ' of amplitude on secondary
i/ n, these components are from transformer B
1～B
nSecondary with vector and U '
iForm take out and then and anti-phase with it input voltage U
iDo the serial connection compensation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95214793 CN2259640Y (en) | 1995-06-11 | 1995-06-11 | Equivalent vector conversion compensating AC voltage stabilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95214793 CN2259640Y (en) | 1995-06-11 | 1995-06-11 | Equivalent vector conversion compensating AC voltage stabilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2259640Y true CN2259640Y (en) | 1997-08-13 |
Family
ID=33864315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95214793 Expired - Fee Related CN2259640Y (en) | 1995-06-11 | 1995-06-11 | Equivalent vector conversion compensating AC voltage stabilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2259640Y (en) |
-
1995
- 1995-06-11 CN CN 95214793 patent/CN2259640Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |