CN201149665Y - Silicon-controlled ac voltage stabilizer - Google Patents
Silicon-controlled ac voltage stabilizer Download PDFInfo
- Publication number
- CN201149665Y CN201149665Y CNU2008200552774U CN200820055277U CN201149665Y CN 201149665 Y CN201149665 Y CN 201149665Y CN U2008200552774 U CNU2008200552774 U CN U2008200552774U CN 200820055277 U CN200820055277 U CN 200820055277U CN 201149665 Y CN201149665 Y CN 201149665Y
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- voltage regulator
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- controllable silicon
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Abstract
The utility model provides a controllable silicon AC voltage stabilizer, aiming at solving the defects of narrow regulating range, slow response, low efficiency, complex structure and high cost on current AC voltage stabilizers. The voltage stabilizer comprises a power input terminal and a power output terminal. A voltage regulating circuit is arranged between the power input terminal and the power output terminal; a control circuit connected with an operating circuit is connected between the voltage regulating circuit and the power output terminal. Integrated with the functions of intelligent detection and control, a controllable silicon contactless switch and a transformer, the AC voltage stabilizer has the advantages of wide regulating range, quick response, no noise, high reliability, high efficiency, simple structure and low cost. Adopting the latest technology, the AC voltage stabilizer dispenses with a current-limiting resistor, thus greatly improving the reliability and efficiency of the whole machine. According to the detection on a sample machine by the Postal and Telecommunication Product Quality Supervision and Testing Center of Ministry of Information Industry, the efficiency of the whole machine reaches 99.2%; meanwhile the AC voltage stabilizer has perfect self-testing and protecting functions.
Description
Technical field
The utility model relates to the AC voltage regulator technical field, specifically, relates to a kind of scr ac voltage regulator.
Background technology
Oneself is widely used in production scientific research aspect AC voltage regulator, by called optical imaging, its kind is also varied, but in most cases the adjusting antihunt means of three-phase alternating voltage are the schemes that employing has level, the compensation of multistage fixed voltage, the precision of voltage regulation of this scheme is limited, press precision higher if seek to stable, the progression of its compensation is possibly more than three grades, and this not only makes, and control is complicated, compensator transformer quantity increases, weight is big, structure is huge.Though also can make voltage stable, require to differ too many with economical and practical aspect.
Thyristor is controllable silicon again.Developed into a big family since coming out the 1950's, its main member has unidirectional thyristor, bidirectional thyristor, photo thyristor, reverse conducting triode thyristor, turn-off thyristor, high speed thyristor, or the like.What used today is unidirectional thyristor, the triode thyristor that just it has often been said, it is made up of the four-level semiconductor material, three PN junctions are arranged, three electrodes are externally arranged: the electrode that the ground floor P-type semiconductor is drawn is anode A, the 3rd layer of electrode that P-type semiconductor is drawn is control utmost point G, and the 4th layer of electrode that N-type semiconductor is drawn is negative electrode K.Can see that from the circuit symbol of thyristor its is the same with diode to be a kind of folk prescription device to conduction, key has been many control utmost point G, this just makes it have and the diverse operating characteristic of diode.
One of topmost effect of controllable silicon is exactly a voltage stabilization and current stabilization.Controllable silicon is being controlled automatically, dynamo-electric field, and aspects such as industrial electric and household electrical appliances all are widely used.Controllable silicon is a kind of active switch element, it remains on the Fei Daotong state at ordinary times, up to making its road logical to its triggering or title " igniting " by a less control signal, it also keeps logical state even if withdrawn trigger pip in case light a fire, and it is ended can add between its anode and negative electrode that the electric current that reverse voltage maybe will flow through the controllable silicon diode reduces to below some values.
Chinese patent ZL86202438 provides a kind of controllable silicon automatic adjustable type voltage regulating and stabilizing device, it is by power transformer, the voltage sampling comparator circuit, control circuit and controllable silicon automatic Regulation mu balanced circuit are formed, by voltage sampling signal control silicon controlled lead foot, make output voltage stabilization in setting value, the photoelectricity voltage sampling control circuit that is characterised in that described voltage sample circuit and control circuit are made up of emitting bulb and photoresistance of the present utility model, an emitting bulb and a locking potentiometer are serially connected with between the sampling tap and common port of a lotus root transformer, photoresistance is connected in series behind the safe resistance in parallel with the electric capacity in the controllable silicon automatic Regulation mu balanced circuit, constitute the divider resistance of electric capacity, the light beam that the photoresistance plane has emitting bulb to send is vertical, and its relative position immobilizes.
Chinese patent ZL00222955.2 provides a kind of controllable silicon-bridge type half controlled rectifying voltage regulation adjustment, comprise phase-shift control circuit and magneto generator, it is characterized in that: the output terminal at magneto generator is connected with halbgesteuerte Gleichrichterbrueckenschaltung, the controllable silicon synchronous triggering signal sample circuit that is made of controllable silicon, diode and filter capacitor; The output terminal of the sampling of controllable silicon synchronous triggering signal, circuit is connected with the input end of synchronous triggering signal control circuit, the input end diode anode that the output terminal of synchronous triggering signal control circuit and the SCR control utmost point trigger the loop links, and the SCR control utmost point links in the negative electrode of the output terminal diode in SCR control utmost point triggering loop and the halbgesteuerte Gleichrichterbrueckenschaltung; The input end of phase-shift control circuit and halbgesteuerte Gleichrichterbrueckenschaltung output voltage positive terminal link, and the output terminal of phase-shift control circuit and synchronous triggering signal control circuit input end transistor base link.But above voltage stabilizer all exists, and voltage stabilized range is narrow, low-response, efficient are low, complex structure, the more high relatively deficiency of manufacturing cost.
The utility model content
The purpose of this utility model provides a kind of scr ac voltage regulator, has to solve existing AC voltage regulator that voltage stabilized range is narrow, low-response, efficient are low, complex structure, the more high relatively many deficiencies of manufacturing cost.
The technical matters that the utility model solved can realize by the following technical solutions:
A kind of scr ac voltage regulator, comprise power input and power output end, it is characterized in that, be provided with voltage regulator circuit between described power input and the power output end, be connected with control circuit between voltage regulator circuit and the power output end, control circuit attended operation circuit.
In the utility model, described voltage regulator circuit comprises:
One multitap single-circuit transformer;
The controllable silicon unit of six parallel connections that link to each other with single-circuit transformer;
The controllable silicon drive circuit that is connected with controllable silicon.
Described controllable silicon unit comprises two antiparallel unidirectional high-power silicon controlled rectifiers, to bear the immediate current of rated current more than ten times.
Described control circuit is made up of power circuit, sample circuit, intelligent logical circuit, output circuit, control and alarm relay etc.
Described function circuit only needs to operate the inlet wire air-break, and it is a duplex interlock type structure, and two switches can be in off-state simultaneously or a unification divides state, can not be in "on" position simultaneously; The left-side switch of closing voltage stabilizer promptly enters the automatic voltage regulation state, and the right-side switch of closing voltage stabilizer promptly enters the direct power supply state of bypass.
Scr ac voltage regulator of the present utility model also is provided with display board, which is provided with voltage stabilizing pilot lamp, alarm indicator and viewing area.
Scr ac voltage regulator of the present utility model, be at line voltage instability, sudden change frequent situation and the AC voltage regulator of new generation of development and production, it has gathered intelligent monitoring, controllable silicon noncontacting switch and transformer technology in one, has that voltage stabilized range is wide, response is fast, noiseless, highly reliable, high-level efficiency, simple in structure, characteristics such as manufacturing cost is relatively low; The current-limiting resistance that adopted the complete skim of state-of-the-art technology can significantly improve the reliability and the efficient of complete machine, and model machine detects through Ministry of Information Industry post and telecommunications industrial product quality supervision and inspection center, and overall efficiency is up to 99.2%; Have perfect detection certainly and defencive function.
Description of drawings
Fig. 1 is circuit theory diagrams of the present utility model.
Fig. 2 is the electrical schematic diagram of the utility model control circuit.
Fig. 3 is the utility model display panel structure synoptic diagram.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
As shown in Figure 1, a kind of scr ac voltage regulator comprises power input and power output end, is provided with voltage regulator circuit between power input and the power output end, be connected with control circuit between voltage regulator circuit and the power output end, control circuit attended operation circuit.
Referring to Fig. 2, control circuit is made up of many taps autotransformer TB and six controllable silicon unit CR1～CR6, the controllable silicon unit is arranged on autotransformer TB and links to each other, the L that autotransformer TB connects the input power supply mutually and N mutually, controllable silicon unit CR1～CR6 connection out-put supply U
0Phase and N
0Phase.Controllable silicon unit CR1～CR6 is the output voltage change-over switch; Change the combinations of states of each transwitch, transformer is had multiplely boost, the step-down no-load voltage ratio; When output voltage exceeded the precision of voltage regulation, control circuit was adjusted switching to transwitch immediately, transferred in the precision of voltage regulation scope until output voltage.
Controllable silicon unit CR1～CR6 comprises two unidirectional high-power silicon controlled rectifiers of inverse parallel, and because of one-way SCR can bear the immediate current of rated current more than ten times, so voltage stabilizer can be operated in the place of dash current; Controllable silicon drive circuit is made up of six photoelectric coupled devices and accessory circuit, can open controllable silicon when controllable silicon terminal voltage zero passage; When no drive signal, even there is undesired signal can guarantee that also controllable silicon is in the reliable turn-off state, photoelectric coupled device and accessory circuit are referring to element and circuit, and those skilled in the art knows quite well its structure and principle of work, is not repeated at this.
Intelligence control circuit is made up of power circuit, sample circuit, intelligent logical circuit, output circuit, control and alarm relay etc., all can be realized by available circuit on top, is not repeated at this.
Function circuit only needs to operate inlet wire air-break DZ47-60T (100T), and 7KVA and this switch of following capacity are contained in the panel below, and 10KVA and this switch of above capacity are contained in the cabinet; This air-break is a duplex interlock type structure, and two switches can be in off-state simultaneously or a unification divides state, can not be in "on" position simultaneously; The left-side switch of closing voltage stabilizer promptly enters the automatic voltage regulation state, and the right-side switch of closing voltage stabilizer promptly enters the direct power supply state of bypass.
Referring to Fig. 3, scr ac voltage regulator of the present utility model also is provided with display board, which is provided with the voltage stabilizing pilot lamp, when voltage stabilizer is normally exported with nowhere to turn to alert and voltage stabilizing, and this green light meeting Chang Liang; Alarm indicator, when any warning information appearred in voltage stabilizer, this red light can be bright, can send alerting tone with hummer on the opportunity inner control plate; And the viewing area, three gauge outfits in below show input voltage, working current, output voltage respectively.
More than show and described ultimate principle of the present utility model and principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the instructions just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (7)
1. scr ac voltage regulator, comprise power input and power output end, it is characterized in that, be provided with voltage regulator circuit between described power input and the power output end, be connected with control circuit between voltage regulator circuit and the power output end, control circuit attended operation circuit.
2. scr ac voltage regulator as claimed in claim 1 is characterized in that: described voltage regulator circuit comprises:
One multitap single-circuit transformer;
The controllable silicon unit of six parallel connections that link to each other with single-circuit transformer;
The controllable silicon drive circuit that is connected with controllable silicon.
3. scr ac voltage regulator as claimed in claim 2 is characterized in that: described controllable silicon unit comprises two antiparallel unidirectional high-power silicon controlled rectifiers
4. scr ac voltage regulator as claimed in claim 1 is characterized in that: described control circuit is made up of power circuit, sample circuit, intelligent logical circuit, output circuit, control and alarm relay.
5. scr ac voltage regulator as claimed in claim 1 is characterized in that: described function circuit adopts the inlet wire air-break.
6. scr ac voltage regulator as claimed in claim 5 is characterized in that: described inlet wire air-break is a duplex interlock type structure.
7. scr ac voltage regulator as claimed in claim 1 is characterized in that: also be provided with display board, which is provided with voltage stabilizing pilot lamp, alarm indicator and viewing area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200552774U CN201149665Y (en) | 2008-01-31 | 2008-01-31 | Silicon-controlled ac voltage stabilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200552774U CN201149665Y (en) | 2008-01-31 | 2008-01-31 | Silicon-controlled ac voltage stabilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201149665Y true CN201149665Y (en) | 2008-11-12 |
Family
ID=40117437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200552774U Expired - Fee Related CN201149665Y (en) | 2008-01-31 | 2008-01-31 | Silicon-controlled ac voltage stabilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201149665Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014020572A1 (en) * | 2012-08-02 | 2014-02-06 | Hau King Kuen | Digital voltage controller |
-
2008
- 2008-01-31 CN CNU2008200552774U patent/CN201149665Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014020572A1 (en) * | 2012-08-02 | 2014-02-06 | Hau King Kuen | Digital voltage controller |
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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: 20081112 Termination date: 20120131 |