CN201966047U - Alternating-current series adjustable load - Google Patents
Alternating-current series adjustable load Download PDFInfo
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- CN201966047U CN201966047U CN2011200138278U CN201120013827U CN201966047U CN 201966047 U CN201966047 U CN 201966047U CN 2011200138278 U CN2011200138278 U CN 2011200138278U CN 201120013827 U CN201120013827 U CN 201120013827U CN 201966047 U CN201966047 U CN 201966047U
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- voltage regulator
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Abstract
The utility model relates to an alternating-current series adjustable load, which comprises a voltage regulator, wherein the input winding of the voltage regulator is connected in parallel with a fixed load, and two ends of the output winding of the voltage regulator are access ends of the adjustable load respectively. The input end of the voltage regulator is connected in parallel with the fixed load, the output end of the voltage regulator is connected in parallel with the input end of a matched transformer, and the output end of the matched transformer is an access end of the adjustable load. The alternating-current series adjustable load is a ''mirror image'' corresponding product of an alternating-current parallel adjustable load. The alternating-current series adjustable load contains a series adjustable resistor or an adjustable inductor or an adjustable capacitor or an adjustable resistive and inductive or an adjustable resistive and capacitive load. The alternating-current series adjustable load brings great convenience to performance experiment study of various electric products, simulation of various energy transmission circuits and qualitative and quantitative adjustment of various circuits.
Description
Technical field:
The utility model relates to AC series impedance load field, be specifically related to a kind of can be charged the AC series type tunable load regulated of continuously smooth.
Background technology:
The various tunable load equipment of forming with voltage regulator that occur in the market all belong to the parallel connection type tunable load, see ZL200520039667.9 and ZL200620043446.3 for details.Their desired characteristics is that impedance is progressively turned down from infinity, finally transfers to rated value.During use it is connected in parallel on the power supply smaller or equal to rated voltage, its load current will change with impedance adjustment, progressively transfer greatly from minimum, finally transfer to user's desired value or rated value.
The utility model content:
The purpose of this utility model is to provide a kind of AC series type tunable load of can charged continuously smooth regulating.
To achieve these goals, the technical solution of the utility model is: a kind of AC series type tunable load, comprise voltage regulator, the input winding and a dead load of this voltage regulator are connected in parallel, and the two ends of the output winding of this voltage regulator are respectively the incoming end of this tunable load.Voltage regulator is contact pressure-adjusting type voltage regulator or Induction Regulation formula voltage regulator.The input and the dead load of voltage regulator are connected in parallel, and the output of voltage regulator and the input of matching transformer are connected in parallel, and the output of matching transformer PB is the incoming end of this tunable load.Dead load is pure resistor load or pure inductance load or pure capacitive load or decides the resistive and inductive load of power factor or decide the resistive and capacitive load of power factor.
In fact the utility model has comprised adjustable resistance, controllable impedance, the adjustable electric of tandem type and has perhaps decided resistive and the perceptual or 5 kinds of tunable loads such as resistive and capacitive of power factor (PF).During use, as long as select above-mentioned any impedance load, two terminals of each phase are connected on to be needed to be less than or equal at electric current under the condition of rated current in the circuit that its gets involved, just can realize the adjusting of the arbitrary load impedance magnitude of prescribed limit.This AC series type tunable load is " mirror image " corresponding product that exchanges the parallel connection type tunable load.It is various electric product performance test research, is the analogue simulation of various power transfer circuit, and the adjusting of the qualitative, quantitative of various circuit brings great convenience.
Description of drawings:
Fig. 1 is the circuit diagram of the utility model first embodiment.
Fig. 2 is the circuit block diagram of the utility model second embodiment.
Fig. 3 is the circuit diagram of the utility model the 3rd embodiment.
Fig. 4 is the circuit diagram of the utility model the 4th embodiment.
Fig. 5 is the circuit diagram of the utility model the 5th embodiment.
Embodiment:
The utility model will be further described below in conjunction with drawings and Examples.
As shown in Figure 1, a kind of AC series type tunable load comprises voltage regulator T, and the input winding W1 of this voltage regulator T and a dead load Z are connected in parallel, and the two ends of the output winding W2 of this voltage regulator are respectively the incoming end A of this tunable load, X.Since the number of turn of the output winding W2 of this voltage regulator be can tangible (abutment voltage regulator) or the mode of invisible (referring to induction voltage regulator) regulate variation, thereby make the output winding W2 of this voltage regulator possess the feature of adjustable size.This shows that voltage regulator input dead load Z is along with this voltage regulator output winding W2 is variable, but i.e. turn ratio modulation between input and output makes output winding W2 side obtain the impedance of an adjustable size.When the electric current I N that is less than or equal to the load rating electric current exported winding W2 by this voltage regulator, correspondent voltage V also changed thereupon.No matter change the principle of drawing impedance variation, still present character and this dead load Z basically identical of impedance from this output winding of all provable series connection of fact W2 of the change in voltage of output winding W2 landing from turn ratio, and I continuously smooth adjusting greatly.
Fig. 2 is the circuit block diagram of second embodiment of the present utility model.As shown in the figure, in this embodiment, this tunable load is the three-phase tunable load, and for the sake of brevity, the circuit among Fig. 2 in the square frame 1 is represented with square frame among Fig. 1.Promptly this three-phase tunable load comprises a three-phase regulator T, each phase input of this three-phase regulator T is in parallel with a dead load Z respectively, each phase output terminal is respectively the incoming end (A of the respective phase of this tunable load, X, B, Y, C, Z), in general, each should be provided with identical dead load mutually.
Fig. 3 is the circuit diagram of the utility model the 3rd embodiment.In this embodiment, voltage regulator is contact pressure-adjusting type voltage regulator T1, and input and the dead load Z of this voltage regulator T1 are connected in parallel, and the output of this voltage regulator T1 is the incoming end A of this tunable load, X.The general employing when contacting the pressure-adjusting type voltage regulator, its load impedance excursion is about 2%～100%.
Fig. 4 is the circuit diagram of the utility model the 4th embodiment.In this embodiment, voltage regulator is Induction Regulation formula voltage regulator T2, and input and the dead load Z of this voltage regulator T2 are connected in parallel, and the output of this voltage regulator T2 is the incoming end A of this tunable load, X.During generally with Induction Regulation formula voltage regulator, its load impedance excursion is 10%～100%.
When top various tandem type tunable loads need high voltage-small current or low-voltage, high-current or only allow independent winding to insert main circuit and during with prime voltage regulator T and the complete electrical isolation of dead load, can adopt the mode of Fig. 5, add matching transformer PB and realize, to adapt to user's above-mentioned requirements.The input and the dead load Z that are voltage regulator T1 are connected in parallel, and the input of the output of voltage regulator T1 and matching transformer PB is connected in parallel, and the output of matching transformer PB is the incoming end A of this tunable load, X.
In the utility model, when the dead load that inserts is actual pure resistance R load, can be made into the load of tandem type adjustable resistance; When the dead load that inserts is actual pure inductance L load, can be made into the load of tandem type controllable impedance; When the dead load that inserts is actual pure capacitor C load, can be made into the load of tandem type tunable capacitor; When the dead load that inserts is a certain power factor R-L load, can be made into the adjustable R-L load of this certain power factor of tandem type; When the dead load that inserts is a certain power factor R-C load, can be made into the adjustable R-C load of this certain power factor of tandem type.
Above-mentioned all single-phase series type tunable loads all can be made three-phase tandem type tunable load as shown in Figure 2.
Desired characteristics of the present utility model is that impedance is progressively transferred greatly from zero, finally transfers to rated value.During use, with its series connection in the line, under the condition of load current smaller or equal to rated value, voltage on this tunable load will change along with the adjusting of impedance progressively to be transferred greatly from minimum, finally transfer to rated value, can think that the utility model belongs to " mirror image " corresponding product of parallel connection type tunable load, be a kind of tandem type tunable load.It has comprised perhaps adjustable resistive and perceptual or the adjustable resistive and capacitive load of tandem type adjustable resistance or controllable impedance or adjustable electric.
Claims (5)
1. AC series type tunable load, comprise voltage regulator, the input winding and a dead load of this voltage regulator are connected in parallel, the two ends of the output winding of this voltage regulator are respectively the incoming end of this tunable load, the input and the dead load of voltage regulator are connected in parallel, the output of voltage regulator and the input of matching transformer are connected in parallel, and the output of matching transformer is the incoming end of this tunable load.
2. AC series type tunable load as claimed in claim 1 is characterized in that voltage regulator is contact pressure-adjusting type voltage regulator or Induction Regulation formula voltage regulator.
3. AC series type tunable load as claimed in claim 2, the input and the dead load that it is characterized in that voltage regulator are connected in parallel, the output of voltage regulator and the input of matching transformer are connected in parallel, and the output of matching transformer is the incoming end of this tunable load.
4. as each described AC series type tunable load in the claim 1 to 3, it is characterized in that dead load is a pure resistor load, or the pure inductance load, or pure capacitive load, or decide the resistive and inductive load of power factor (PF), or decide the resistive and capacitive load of power factor (PF).
5. as each described AC series type tunable load in the claim 1 to 3, it is characterized in that this tunable load is the three-phase tunable load, this three-phase tunable load comprises a three-phase regulator, each phase input of this three-phase regulator is in parallel with a dead load respectively, and each phase output terminal is respectively the incoming end of the respective phase of this tunable load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200138278U CN201966047U (en) | 2011-01-17 | 2011-01-17 | Alternating-current series adjustable load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200138278U CN201966047U (en) | 2011-01-17 | 2011-01-17 | Alternating-current series adjustable load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201966047U true CN201966047U (en) | 2011-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200138278U Expired - Fee Related CN201966047U (en) | 2011-01-17 | 2011-01-17 | Alternating-current series adjustable load |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201966047U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108919115A (en) * | 2018-05-15 | 2018-11-30 | 中国航发湖南动力机械研究所 | adjustable resistance load, loading system and loading method |
-
2011
- 2011-01-17 CN CN2011200138278U patent/CN201966047U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108919115A (en) * | 2018-05-15 | 2018-11-30 | 中国航发湖南动力机械研究所 | adjustable resistance load, loading system and loading method |
| CN108919115B (en) * | 2018-05-15 | 2020-10-23 | 中国航发湖南动力机械研究所 | Adjustable resistance load, loading system and loading method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110907 Termination date: 20140117 |