CN87102544A - Balance type three phase single silicon controlled rectifier regulating circuit - Google Patents
Balance type three phase single silicon controlled rectifier regulating circuit Download PDFInfo
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- CN87102544A CN87102544A CN 87102544 CN87102544A CN87102544A CN 87102544 A CN87102544 A CN 87102544A CN 87102544 CN87102544 CN 87102544 CN 87102544 A CN87102544 A CN 87102544A CN 87102544 A CN87102544 A CN 87102544A
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Abstract
A kind of balance type three phase single silicon controlled rectifier regulating circuit.The three-phase power rectifier transformer that includes one group of elementary three-phase input winding and two groups of secondary three phase windings, six rectifier diodes, controllable silicon and load etc.It only uses a controllable silicon just to realize that three-phase ac power changes adjustable galvanic task into, thereby has reduced silicon controlled quantity, reduces requirement of withstand voltage, simplifies circuits for triggering, increases three synchronised levels.Can be used for resistive, perception and capacitive load.
Description
The invention belongs to the electric power controllable rectifying and pressure-regulating circuit that three-phase ac power is changed into controlled direct current power.
Be applicable to the controllable rectifying and pressure-regulating circuit of the controlled power converter of three-phase equilibrium under the general load, all adopt the thyristor more than three or three at least.
Be disclosed in " the single silicon controlled charging circuit of balance type three phase " on Chinese Academy of Sciences's " electronics science " academic periodical May nineteen eighty-two, the major loop of its basic circuit is made up of three rectifier diodes and controllable silicon and storage battery, its coupling method is as follows: the anode of three rectifier diodes links to each other with three-phase alternating-current supply or three terminations of three-phase transformer secondary winding respectively, common and the controllable silicon anode of its negative electrode links, the silicon controlled negative electrode links to each other with storage battery as the output of this circuit, because this circuit is to adopt the electromotive force of storage battery to turn-off controllable silicon, therefore it can not be used for general resistance, inductance, capacitive load, and can only be confined to the charge in batteries field.
The objective of the invention is to obtain the silicon controlled shutoff voltage, make the single silicon controlled regulating circuit of three-phase both go for battery charging circuit, also be applicable to resistive, perceptual, capacitive load from rectification circuit itself.
The present invention is by taking out three phase half wave rectification voltage from the three phase half wave rectification loop of forming with three rectifier diodes by two secondary winding of power rectifier transformer, receive silicon controlled negative electrode (or anode), realize aforementioned purpose as the silicon controlled shutoff voltage.
Main circuit of the present invention includes one group of elementary three-phase input winding, the three-phase power rectifier transformer of two groups of secondary three phase windings, six rectifier diodes, controllable silicon and load etc.The three-phase terminal of one group of secondary winding links with three rectifier diode anodes (or negative electrode) respectively, common and the controllable silicon anode (or negative electrode) of the negative electrode of these three rectifier diodes (or anode) links, controllable silicon negative electrode (or anode) links with load, the three-phase terminal of other one group of secondary winding also links with three rectifier diode anodes (or anode) respectively, and the common and controllable silicon negative electrode (or anode) of the negative electrode of these three rectifier diodes (or anode) links.
Two groups of secondary winding phase places of power rectifier transformer are opposite, and the ratio of the output voltage of two groups of windings is between 1/2nd to two.
Two secondary winding and six rectifier diodes are formed two utmost point three phase half wave rectification loops respectively, wherein one group of three phase half wave rectification loop provides load current by controllable silicon to load, and the effect in another group three phase half wave rectification loop then is to provide shutoff voltage to controllable silicon.
Basic circuit of the present invention is provided by following embodiment and accompanying drawing.
Fig. 1 shows the circuit (the circuits for triggering part is not drawn) according to one embodiment of the present of invention.
Fig. 2 shows the secondary winding (2) of circuit shown in Figure 1 and the three phase half wave rectification output dc pulse moving voltage waveform of (3).
Fig. 3 shows circuit shown in Figure 1 in the load voltage waveform of thyristor operating angle greater than maximum conduction angle one half.
Fig. 4 shows circuit shown in Figure 1 in the load voltage waveform of thyristor operating angle less than maximum conduction angle one half.
Below in conjunction with concrete coupling method and the operation principle of description of drawings according to basic circuit of the present invention.
Fig. 1 shows according to one embodiment of the present of invention, it only shows the major loop relevant with the present invention, this loop includes one group of elementary three-phase input winding (1), secondary three phase windings (2) that two groups of phase places are opposite and the three-phase power rectifier transformer of (3), six rectifier diodes (4), (5), (6), (7), (8), (9), a controllable silicon (10), afterflow two (11) and load (12) are formed.
Three-phase primary windings (1) connects with three-phase alternating-current supply, and six terminals of secondary two group of three phase winding (2) and (3) link together as first output of this regulating circuit.It is opposite that this two group of three phase winding (2) and (3) are designed to phase place, and the ratio of amplitude is between 1/2nd to two.Other six terminals link to each other with six rectifier diodes (4), (5), (6), (7), (8), (9) respectively.Thereby form two groups of three phase half wave rectification loops respectively.Wherein the three-phase terminal of secondary winding (2) links to each other with the anode of three rectifier diodes (4), (5), (6) respectively, the negative electrode of these three rectifier diodes links to each other with controllable silicon (10) anode jointly, and controllable silicon (10) negative electrode is as second output of this regulating circuit.The three-phase terminal of secondary winding (3) links to each other with three rectifier diodes (7), (8), (9) anode respectively, the negative electrode of rectifier diode (7), (8), (9) links to each other with the negative electrode of controllable silicon (10) jointly, and this three phase half wave rectification output voltage is as the shutoff voltage of controllable silicon (10).Fly-wheel diode (11) and load (12) are connected between the first and second two outputs.
This circuit operation is as follows: be serially connected in controllable silicon (10) in the three phase half wave rectification loop of secondary winding (2) after any phase triggering and conducting, the three phase half wave rectification loop voltage of winding (3) is being equal to or less than the voltage zero-cross between 2/3rds π can both make controllable silicon (10) in the cycle negative and positive two utmost points or is bearing reverse voltage and turn-off, thereby realizes using a controllable silicon just can control the three phase rectifier output voltage by turns.
This invention just is not limited to the above embodiments, and within the scope of the invention, those skilled in the art can also find out the feasible program of many variants.
Claims (2)
1, a kind of balance type three phase single silicon controlled rectifier regulating circuit main circuit includes one group of elementary three-phase input winding, the three-phase power rectifier transformer of two groups of secondary three phase windings, six rectifier diodes, controllable silicon and load etc.The three-phase terminal of one group of secondary winding links with three rectifier diode anodes (or negative electrode) respectively, and the negative electrode of these three rectifier diodes (or anode) is common to link with controllable silicon anode (or negative electrode), and controllable silicon negative electrode (or anode) and load link.The three-phase terminal that it is characterized in that other one group of secondary winding also links with three rectifier diode anodes (or negative electrode) respectively, and the common and controllable silicon negative electrode (or anode) of the negative electrode of these three rectifier diodes (or anode) links.
2, balance type three phase single silicon controlled rectifier regulating circuit according to claim 1 it is characterized in that secondary two group of three phase winding phase place is opposite, and the ratio of the output voltage of two groups of windings is between 1/2nd to two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87102544 CN87102544A (en) | 1987-04-04 | 1987-04-04 | Balance type three phase single silicon controlled rectifier regulating circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87102544 CN87102544A (en) | 1987-04-04 | 1987-04-04 | Balance type three phase single silicon controlled rectifier regulating circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87102544A true CN87102544A (en) | 1988-10-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87102544 Pending CN87102544A (en) | 1987-04-04 | 1987-04-04 | Balance type three phase single silicon controlled rectifier regulating circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87102544A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1074596C (en) * | 1998-12-22 | 2001-11-07 | 深圳市安圣电气有限公司 | Three-phase power supply consisting of single-phase one with correction of power factor |
| CN102611334A (en) * | 2012-03-09 | 2012-07-25 | 龚秋声 | Duplex double-reverse-star controllable rectifier circuit |
-
1987
- 1987-04-04 CN CN 87102544 patent/CN87102544A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1074596C (en) * | 1998-12-22 | 2001-11-07 | 深圳市安圣电气有限公司 | Three-phase power supply consisting of single-phase one with correction of power factor |
| CN102611334A (en) * | 2012-03-09 | 2012-07-25 | 龚秋声 | Duplex double-reverse-star controllable rectifier circuit |
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