CN1815868A - Semicontrol type silicon-contrlled rectification system and method - Google Patents
Semicontrol type silicon-contrlled rectification system and method Download PDFInfo
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- CN1815868A CN1815868A CN 200510007026 CN200510007026A CN1815868A CN 1815868 A CN1815868 A CN 1815868A CN 200510007026 CN200510007026 CN 200510007026 CN 200510007026 A CN200510007026 A CN 200510007026A CN 1815868 A CN1815868 A CN 1815868A
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Abstract
The system includes a first detection unit, a silicon controlled rectification unit, a DC bus, a second detection unit, and a control unit. Using the first detection unit detects zero crossover point of three phase AC supply at input end; using second detection unit detects voltage of DC bus; and using control unit through software controls the silicon controlled rectification unit in order to reach effect of soft start-up.
Description
Technical field
The present invention relates to a kind of semicontrol type silicon-contrlled rectification system and method thereof, particularly be applied to the commutation system on the motor electric power starter.
Background technology
Along with being in fashion of various portable electronic products, the importance of power management also grows with each passing day.And the relevant positive active development volume of manufacturer is littler, degree of integration is high more, and the higher assembly of power supply conversion efficiency, in the hope of increasing the operating time and the battery endurance of system.
And in the relevant power management, in order to reduce the influence that system is caused when power initiation moment starting current, tend to add the soft start computer hardware and suppress starting current.And being the full-control type silicon control commutation system that need use a lot of complex hardware structures, present employed thyristor soft start equipment reaches the function of soft start.As shown in Figure 1, include: silicon control rectification unit 101, dc bus 102, diode 103, starting resistance unit 104 and transformer 105.Wherein, make power supply can conducting the time, must start diode 103 and starting resistance unit 104 earlier, and starting resistance unit 104 must be waited until when the voltage of dc bus 102 reaches a conducting voltage and just starts when driving silicon control rectification unit 101.
Whether yet the structure that Fig. 1 disclosed may have some technical problems, and for example silicon control rectification unit 101 is uncontrollable, and can't determine silicon control rectification unit 101 to drive normal and silicon control rectification unit 101 is damaged.In addition, this structure is all the drive pattern of hardware, there is no the angle of flow that any protection and feedback are protected silicon control rectification unit 101.
Summary of the invention
In view of above problem, main purpose of the present invention is to provide a kind of semicontrol type silicon-contrlled rectification system and method thereof, so as to solving the technical problem of the relevant thyristor of prior art.
Therefore, for reaching above-mentioned purpose, disclosed semicontrol type silicon-contrlled rectification system, include: one first detecting unit, have in order to receiving a first input end mouth of a three-phase alternating current, and this first detecting unit detects one zero crossover points of this three-phase alternating current that inputs to this first input end mouth; One silicon control rectification unit has one second input port, receives this three-phase alternating current, and exports after this three-phase alternating current is rectified into direct current; One direct current bus connects this silicon control rectification unit, includes a charging capacitor, receives the output DC of this silicon control rectification unit, and converts voltage to and be stored in this charging capacitor; One second detecting unit connects this dc bus, detects the voltage of this charging capacitor of this dc bus; An and control unit, receive the output of this first detecting unit and this second detecting unit, and output result according to this first detecting unit and this second detecting unit, whether decision sends a triggering signal to this silicon control rectification unit, with this silicon control rectification unit of conducting, make the three-phase alternating current circulation of this second input port.
According to semicontrol type silicon-contrlled rectification system of the present invention, wherein this first detecting unit is a way zero trigger circuit.
According to semicontrol type silicon-contrlled rectification system of the present invention, wherein this first detecting unit detects this zero crossover point of 0 degree.
According to semicontrol type silicon-contrlled rectification system of the present invention, wherein this first detecting unit detects this zero crossover point of 180 degree.
According to semicontrol type silicon-contrlled rectification system of the present invention, wherein this silicon control rectification unit is made up of a plurality of thyristors and a plurality of diode.
According to semicontrol type silicon-contrlled rectification system of the present invention, wherein this dc bus is set a turn-on voltage.
According to semicontrol type silicon-contrlled rectification system of the present invention, wherein this dc bus is made up of a charging capacitor and one second resistance.
According to semicontrol type silicon-contrlled rectification system of the present invention, wherein this first detecting unit includes: a comparator; One first voltage source connects the negative input end of this comparator; One second voltage source connects the calibration terminal of this comparator; One tertiary voltage source connects the negative input end of this comparator; One the 4th voltage source connects the output of this comparator; One first resistance is connected between this comparator and this first voltage source; One second resistance is connected between this comparator and this first resistance; One the 3rd resistance is connected between the positive input terminal and an earth terminal of this comparator; One the 4th resistance is connected between this comparator and the 4th voltage source; Between one first electric capacity, the positive input terminal that is connected in this comparator and an earth terminal and in parallel with the 3rd resistance; And one second electric capacity, be connected between this comparator and this tertiary voltage source.
The present invention also provides a kind of method for rectifying, is applied to semicontrol type silicon-contrlled rectification system, it is characterized in that including: one zero crossover points that detect a three-phase alternating-current supply; Detect a voltage of a direct current bus; And judge whether this voltage arrives a predefined turn-on voltage, whether sends a triggering signal conducting one silicon control rectification unit with decision when this zero crossover point.
According to method for rectifying of the present invention, should zero crossover point be to detect wherein by a way zero trigger circuit.
According to method for rectifying of the present invention, should zero crossover point be 0 degree wherein.
According to method for rectifying of the present invention, should zero crossover point be 180 degree wherein.
According to disclosed embodiment, it detects the zero crossover point of the three-phase alternating current of its input by first detecting unit, detect the voltage of dc bus with second detecting unit, and reach rectification function with software mode control silicon control rectification unit by control unit.
According to disclosed embodiment, it can omit the complicated hardware structure, and only need use software control and collocation simple hardware construction promptly can reach the effect of soft start.Therefore, not only can reduce the cost of circuit design, also can make the control of thyristor more accurate.In addition, during the angle of flow of control thyristor, also can control the voltage on the dc bus, pressure drop on the compensated line, and then improve merit because of and power loss when reducing the transistor switching, it helps the raising of efficient.
Description of drawings
Fig. 1 is known silicon control commutation system structure;
Fig. 2 is the silicon control rectifier structure of first embodiment of semicontrol type silicon-contrlled rectification system of the present invention;
Fig. 3 is the software control flow chart of first embodiment of semicontrol type silicon-contrlled rectification system of the present invention; And
Fig. 4 is the circuit diagram of first detecting unit of first embodiment of semicontrol type silicon-contrlled rectification system of the present invention.
Wherein, description of reference numerals is as follows:
101 silicon control rectification units, 102 dc buss
103 diodes, 104 starting resistance unit
105 transformers, 111 thyristors
112 first resistance, 113 second resistance
121 diodes, 130 inductance
201 first detecting units, 202 control units
203 second detecting units, 204 first input end mouths
205 second input ports, 401 comparators
402 inputs, 411 first voltage sources
412 second voltage sources, 413 tertiary voltage sources
414 the 4th voltage sources, 421 first electric capacity
422 second electric capacity, 431 first resistance
432 second resistance 433 the 3rd resistance
434 the 4th resistance
Embodiment
A kind of semicontrol type silicon-contrlled rectification system, as shown in Figure 2, comprise first detecting unit 201, silicon control rectification unit 101, the dc bus 102 that is connected with silicon control rectification unit 101, second detecting unit 203 that is connected with dc bus 102, control unit 202, first resistance 112 and inductance 130.
Wherein first detecting unit 201 has one in order to receive the first input end mouth 204 of three-phase alternating current, to detect 0 degree and the 180 zero crossover points of spending from the three-phase alternating current of first input end mouth 204.Silicon control rectification unit 101 is made up of with a plurality of diode 121 a plurality of thyristors 111, it has one in order to receiving second input port 205 of three-phase alternating current synchronously with the first input end mouth, with control from whether conducting of the output of second input port, 205 three-phase alternating currents.Dc bus 102 comprises the charging capacitor C and second resistance 113.Second detecting unit 203 detects the voltage of the charging capacitor C of dc bus 102.The testing result that control unit 202 receives from first detecting unit 201 and second detecting unit 203, and according to the testing result of first detecting unit 201 and second detecting unit 203, whether decision sends a triggering signal to silicon control rectification unit 101, with conducting silicon control rectification unit 101, make the three-phase alternating current circulation of second input port 205.
Control unit 202 is software formula control, the flow chart of its control, as shown in Figure 3, when three-phase alternating-current supply is flowed through first input end mouth 204, first detecting unit 201 detects the voltage zero crossover point of this three-phase alternating-current supply, and send this voltage zero crossover point signal to control unit 202 (step 301), control unit 202 then sends triggering signal with the thyristor 111 (step 302) in the conducting silicon control rectification unit 101, moreover, whether control unit 202 is judged from the magnitude of voltage that is detected on the charging capacitor C of second detecting unit 203 at dc bus 102 greater than a turn-on voltage (step 303), in this way, then control unit 202 sends all thyristors (step 304) in the triggering signal conducting silicon control rectification unit 101; As not, then control unit 202 during near zero crossover point, sends triggering signal with a thyristor 111 in the conducting silicon control rectification unit 101 at next periodic voltage.
Wherein, in step 303, if be not more than a turn-on voltage from the magnitude of voltage that is detected on the charging capacitor C of second detecting unit 203 at dc bus 102, then control unit 202 is at next periodic voltage during near zero crossover point, send triggering signal with a thyristor 111 in the conducting silicon control rectification unit 101, in repeating to judge in the action, a thyristor 111 in each cycle conducting silicon control rectification unit 101 in advance slowly, silicon control rectification unit 101 complete ON time have been prolonged, and the charging capacitor C voltage of dc bus 102 is slowly increased, up to the magnitude of voltage of dc bus 102 charging capacitor C during greater than a turn-on voltage, control unit 202 just sends all thyristors in the triggering signal conducting silicon control rectification unit 101, so, can reach the effect of soft start.In addition, zero crossover point can be selected 0 degree or 180 degree.
In addition, first detecting unit 201, as shown in Figure 4, it comprises: first voltage source 411 of the negative input end of comparator 401, connection comparator 401; Second voltage source 412 that connects the calibration terminal of comparator 401; The tertiary voltage source 413 that connects the negative input end of comparator 401; The 4th voltage source 414 that connects the output of comparator 401; First resistance 431 between 411 of comparator 401 and first voltage sources; Second resistance 432 between 431 of comparator 401 and first resistance; Between the positive input terminal of comparator 401 and the 3rd resistance 433 between earth terminal; The 4th resistance 434 between 414 of comparator 401 and the 4th voltage sources; Between the positive input terminal of comparator 401 and first electric capacity 421 between earth terminal, and in parallel with the 3rd resistance 433; And between comparator 401 and tertiary voltage source 413 second electric capacity 422.
When the voltage waveform of input 402 receptions from the three-phase alternating-current supply of first input end mouth 204, yet comparator 401 has a predefined accurate position, the voltage waveform of this accurate position with three-phase alternating-current supply compared, when the voltage waveform of three-phase alternating-current supply during to zero crossover point, the signalisation control unit 202 that comparator 401 will the accurate position of output HIGH voltage arrive zero crossover point with expression voltage.
Though the present invention discloses as above with aforesaid preferred embodiment; right its is not in order to limit the present invention; anyly be familiar with those of ordinary skill in the art; without departing from the spirit and scope of the present invention; therefore can do a little change and retouching, scope of patent protection of the present invention must be looked this specification appending claims scope and defined and be as the criterion.
Claims (12)
1. semicontrol type silicon-contrlled rectification system is characterized in that including:
One first detecting unit has in order to receiving a first input end mouth of a three-phase alternating current, and this first detecting unit detects one zero crossover points of this three-phase alternating current that inputs to this first input end mouth;
One silicon control rectification unit has one second input port, receives this three-phase alternating current, and exports after this three-phase alternating current is rectified into direct current;
One direct current bus connects this silicon control rectification unit, includes a charging capacitor, receives the output DC of this silicon control rectification unit, and converts voltage to and be stored in this charging capacitor;
One second detecting unit connects this dc bus, detects the voltage of this charging capacitor of this dc bus; And
One control unit, receive the output of this first detecting unit and this second detecting unit, and output result according to this first detecting unit and this second detecting unit, whether decision sends a triggering signal to this silicon control rectification unit, with this silicon control rectification unit of conducting, make the three-phase alternating current circulation of this second input port.
2. semicontrol type silicon-contrlled rectification system as claimed in claim 1 is characterized in that this first detecting unit is a way zero trigger circuit.
3. semicontrol type silicon-contrlled rectification system as claimed in claim 1 is characterized in that this first detecting unit detects this zero crossover point of 0 degree.
4. semicontrol type silicon-contrlled rectification system as claimed in claim 1 is characterized in that this first detecting unit detects this zero crossover point of 180 degree.
5. semicontrol type silicon-contrlled rectification system as claimed in claim 1 is characterized in that this silicon control rectification unit is made up of a plurality of thyristors and a plurality of diode.
6. semicontrol type silicon-contrlled rectification system as claimed in claim 1 is characterized in that this dc bus sets a turn-on voltage.
7. semicontrol type silicon-contrlled rectification system as claimed in claim 1 is characterized in that this dc bus is made up of a charging capacitor and one second resistance.
8. semicontrol type silicon-contrlled rectification system as claimed in claim 1 is characterized in that this first detecting unit includes:
One comparator;
One first voltage source connects the negative input end of this comparator;
One second voltage source connects the calibration terminal of this comparator;
One tertiary voltage source connects the negative input end of this comparator;
One the 4th voltage source connects the output of this comparator;
One first resistance is connected between this comparator and this first voltage source;
One second resistance is connected between this comparator and this first resistance;
One the 3rd resistance is connected between the positive input terminal and an earth terminal of this comparator;
One the 4th resistance is connected between this comparator and the 4th voltage source;
Between one first electric capacity, the positive input terminal that is connected in this comparator and an earth terminal and in parallel with the 3rd resistance; And
One second electric capacity is connected between this comparator and this tertiary voltage source.
9. a method for rectifying is applied to semicontrol type silicon-contrlled rectification system, it is characterized in that including:
Detect one zero crossover points of a three-phase alternating-current supply;
Detect a voltage of a direct current bus; And
Judge whether this voltage arrives a predefined conducting when this zero crossover point
Whether magnitude of voltage sends a triggering signal conducting one silicon control rectification unit with decision.
10. method for rectifying as claimed in claim 9 is characterized in that this zero crossover point is to be detected by a way zero trigger circuit.
11. method for rectifying as claimed in claim 9 is characterized in that this zero crossover point is 0 degree.
12. method for rectifying as claimed in claim 9 is characterized in that this zero crossover point is 180 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510007026 CN1815868A (en) | 2005-01-31 | 2005-01-31 | Semicontrol type silicon-contrlled rectification system and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200510007026 CN1815868A (en) | 2005-01-31 | 2005-01-31 | Semicontrol type silicon-contrlled rectification system and method |
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| CN1815868A true CN1815868A (en) | 2006-08-09 |
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| CN 200510007026 Pending CN1815868A (en) | 2005-01-31 | 2005-01-31 | Semicontrol type silicon-contrlled rectification system and method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102843049A (en) * | 2011-06-20 | 2012-12-26 | 昆山巩诚电器有限公司 | Rectifier voltage regulator for motorcycles |
| CN103023355A (en) * | 2012-12-28 | 2013-04-03 | 广州数控设备有限公司 | Servo intelligent power control circuit and servo intelligent power control method based on thyristor rectification |
| CN103595268A (en) * | 2013-11-26 | 2014-02-19 | 中国人民解放军重庆通信学院 | Frequency converter |
| CN107659162A (en) * | 2017-09-20 | 2018-02-02 | 中国电力科学研究院 | A kind of exchange fast-switching arrangement and its control method based on IGCT |
| CN107706892A (en) * | 2017-09-20 | 2018-02-16 | 中国电力科学研究院 | A kind of exchange fast-switching arrangement parameter determination method and device based on IGCT |
| CN107743032A (en) * | 2017-09-20 | 2018-02-27 | 中国电力科学研究院 | A kind of exchange fast-switching arrangement and its control method based on controllable devices |
-
2005
- 2005-01-31 CN CN 200510007026 patent/CN1815868A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102843049A (en) * | 2011-06-20 | 2012-12-26 | 昆山巩诚电器有限公司 | Rectifier voltage regulator for motorcycles |
| CN102843049B (en) * | 2011-06-20 | 2015-07-22 | 上海渝癸德信息技术服务中心 | Rectifier voltage regulator for motorcycles |
| CN103023355A (en) * | 2012-12-28 | 2013-04-03 | 广州数控设备有限公司 | Servo intelligent power control circuit and servo intelligent power control method based on thyristor rectification |
| CN103023355B (en) * | 2012-12-28 | 2015-06-03 | 广州数控设备有限公司 | Servo intelligent power control circuit and servo intelligent power control method based on thyristor rectification |
| CN103595268A (en) * | 2013-11-26 | 2014-02-19 | 中国人民解放军重庆通信学院 | Frequency converter |
| CN107659162A (en) * | 2017-09-20 | 2018-02-02 | 中国电力科学研究院 | A kind of exchange fast-switching arrangement and its control method based on IGCT |
| CN107706892A (en) * | 2017-09-20 | 2018-02-16 | 中国电力科学研究院 | A kind of exchange fast-switching arrangement parameter determination method and device based on IGCT |
| CN107743032A (en) * | 2017-09-20 | 2018-02-27 | 中国电力科学研究院 | A kind of exchange fast-switching arrangement and its control method based on controllable devices |
| CN107706892B (en) * | 2017-09-20 | 2021-10-29 | 中国电力科学研究院 | Method and device for determining parameters of alternating current rapid switching device based on thyristor |
| CN107743032B (en) * | 2017-09-20 | 2023-12-19 | 中国电力科学研究院 | Alternating current rapid switching device based on controllable device and control method thereof |
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