CN203827227U - Novel energy-saving high-frequency excitation cabinet - Google Patents
Novel energy-saving high-frequency excitation cabinet Download PDFInfo
- Publication number
- CN203827227U CN203827227U CN201420131651.XU CN201420131651U CN203827227U CN 203827227 U CN203827227 U CN 203827227U CN 201420131651 U CN201420131651 U CN 201420131651U CN 203827227 U CN203827227 U CN 203827227U
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- Prior art keywords
- transformer
- novel energy
- frequency excitation
- rectifier bridge
- rectifier
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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Abstract
The utility model proposes a novel energy-saving high-frequency excitation cabinet. The novel energy-saving high-frequency excitation cabinet includes a filter inductor (L2) which is connected with a rectifier bridge (D1). The rectifier bridge (D1), through a filter capacitor (C1), is connected with a full bridge inverter. The full bridge inverter is connected to a primary side of a transformer (BH). The primary side of the transformer (BH) is connected in series with a capacitor (C2). A secondary side of the transformer (BH) is connected with a rectifier bridge (D2). The rectifier bridge (D2), sequentially through a silicon controlled rectifier (MT1) and an inductor (L1), is connected with a motor (TD). Both sides of the motor (TD) are connected in parallel with a silicon controlled rectifier (MT2) and a resistor (Rfd), wherein the silicon controlled rectifier (MT2) and the resistor (Rfd) are connected in series. A current transformer (CT) is disposed in a loop in which the rectifier bridge (D2) and the motor (TD) are connected. The novel energy-saving high-frequency excitation cabinet saves more electric energy than a conventional rectification mode by using a rectifier transformer and a silicon controlled rectifier. According to the novel energy-saving high-frequency excitation cabinet, the size is further reduced and the power density is increased; the input power factor is improved and the service life is prolonged; and the output interference of the excitation cabinet is reduced.
Description
Technical field
The utility model relates to excitation cubicle equipment association area, specifically a kind of novel energy-conserving high frequency excitation cubicle.
Background technology
Synchronous machinery excitation cabinet is to provide device stable and DC power supply that can regulate to synchronous machine, existing design adopts rectifier transformer to add controllable silicon rectifying bridge mode, rectifier transformer volume is large, input power factor is low, SCR rectification circuit long-time stability are poor, serious to harmonic pollution in electric power net, consume energy high.
Utility model content
The utility model proposes a kind of novel energy-conserving high frequency excitation cubicle, to solve, in prior art, excitation cubicle volume is large, power factor is low, poor stability, to problems such as harmonic pollution in electric power net.
The technical solution of the utility model is achieved in that
A kind of novel energy-conserving high frequency excitation cubicle, comprise filter inductance L2, described filter inductance L2 meets rectifier bridge D1, described rectifier bridge D1 connects full bridge inverter after by filter capacitor C1, described full bridge inverter connects the primary side of transformer BH, the primary side of transformer BH is serially connected with capacitor C 2, the secondary side rectifier bridge D2 of transformer BH, rectifier bridge D2 meets motor TD after controllable silicon MT1 and inductance L 1, motor TD both sides are parallel with controllable silicon MT2 and resistance R _ f d, and described controllable silicon MT2 and resistance R _ f d are connected in series; Described rectifier bridge D2 is provided with Current Transmit with the loop that motor TD is connected.
Further, described inductance L 1 is amorphous reactor.
Further, described transformer BH is amorphous transformer.
Further, described filter capacitor C1 is thin-film capacitor.
The beneficial effects of the utility model are:
Novel energy-conserving high frequency excitation cubicle of the present utility model adopts high frequency switch power as the output of core power supply, adopts high-speed thyristor as output switch, adopts single silicon controlledly as demagnetization, to control, and has following characteristics in core high frequency switch power:
1, utilize Switching Power Supply power savings advantages, more traditional rectifier transformer and silicon controlled rectifier mode, saves energy.
2, adopt novel amorphous transformer, adopt amorphous iron core as the magnetic core of core transformer, further reduced volume, increasing power density.
3, adopt novel thin film electric capacity as filter element, improve input power factor, increase the service life.
4, adopt amorphous reactor as output filtering element, reduce excitation cubicle output and disturb.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the circuit diagram of an embodiment of the present utility model.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, novel energy-conserving high frequency excitation cubicle in the present embodiment, comprise filter inductance L2, described filter inductance L2 meets rectifier bridge D1, described rectifier bridge D1 connects full bridge inverter after by filter capacitor C1, described full bridge inverter connects the primary side of transformer BH, the primary side of transformer BH is serially connected with capacitor C 2, the secondary side rectifier bridge D2 of transformer BH, rectifier bridge D2 meets motor TD after controllable silicon MT1 and inductance L 1, motor TD both sides are parallel with controllable silicon MT2 and resistance R _ f d, and described controllable silicon MT2 and resistance R _ f d are connected in series; Described rectifier bridge D2 is provided with Current Transmit with the loop that motor TD is connected.
In the present embodiment, described inductance L 1 is amorphous reactor.Described transformer BH is amorphous transformer.Described filter capacitor C1 is thin-film capacitor.
When motor TD enters synchronous operation state, electric network source accesses through interrupteur SW, after fuse FU1 and FU2 again through filter inductance L2 filtering, then through rectifier bridge D1 rectification, after filter capacitor C1 filtering, obtain DC power supply, this DC power supply obtains 500V after full bridge inverter, the alternating current of 20KHZ, this alternating current accesses the primary side of transformer BH after capacitance C2, the primary side of transformer BH obtains 120V, the alternating current of 20KHZ, this alternating current obtains 120V after rectifier bridge D2, the direct current of 300A, this direct current is carried on motor TD after controllable silicon MT1 and inductance L 1, Current Transmit is for detection of the current conditions of supplying with motor TD, controllable silicon MT2 and resistance R _ f d be the superpotential impact in motor starting procedure for the protection of output circuit.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.
Claims (4)
1. a novel energy-conserving high frequency excitation cubicle, it is characterized in that, comprise filter inductance L2, described filter inductance L2 meets rectifier bridge D1, described rectifier bridge D1 connects full bridge inverter after by filter capacitor C1, described full bridge inverter connects the primary side of transformer BH, the primary side of transformer BH is serially connected with capacitor C 2, the secondary side rectifier bridge D2 of transformer BH, rectifier bridge D2 meets motor TD after controllable silicon MT1 and inductance L 1, motor TD both sides are parallel with controllable silicon MT2 and resistance R _ f d, and described controllable silicon MT2 and resistance R _ f d are connected in series; Described rectifier bridge D2 is provided with Current Transmit with the loop that motor TD is connected.
2. a kind of novel energy-conserving high frequency excitation cubicle as claimed in claim 1, is characterized in that, described inductance L 1 is amorphous reactor.
3. a kind of novel energy-conserving high frequency excitation cubicle as claimed in claim 1, is characterized in that, described transformer BH is amorphous transformer.
4. a kind of novel energy-conserving high frequency excitation cubicle as claimed in claim 1, is characterized in that, described filter capacitor C1 is thin-film capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420131651.XU CN203827227U (en) | 2014-03-21 | 2014-03-21 | Novel energy-saving high-frequency excitation cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420131651.XU CN203827227U (en) | 2014-03-21 | 2014-03-21 | Novel energy-saving high-frequency excitation cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203827227U true CN203827227U (en) | 2014-09-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420131651.XU Expired - Fee Related CN203827227U (en) | 2014-03-21 | 2014-03-21 | Novel energy-saving high-frequency excitation cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203827227U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105871288A (en) * | 2016-05-12 | 2016-08-17 | 钱伟 | Motor magnetic circuit control efficient energy saver |
| CN107689764A (en) * | 2017-08-17 | 2018-02-13 | 北京合康亿盛技术有限公司 | Frequency changer controller with safe torque turn-off function and safe frequency convertor system |
| CN108292902A (en) * | 2015-09-15 | 2018-07-17 | 雷勃美国公司 | Hybrid driving circuit and control method for speed change induction machine system |
-
2014
- 2014-03-21 CN CN201420131651.XU patent/CN203827227U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108292902A (en) * | 2015-09-15 | 2018-07-17 | 雷勃美国公司 | Hybrid driving circuit and control method for speed change induction machine system |
| CN108292902B (en) * | 2015-09-15 | 2021-11-30 | 雷勃美国公司 | Hybrid drive circuit and control method for variable speed induction motor system |
| CN105871288A (en) * | 2016-05-12 | 2016-08-17 | 钱伟 | Motor magnetic circuit control efficient energy saver |
| CN107689764A (en) * | 2017-08-17 | 2018-02-13 | 北京合康亿盛技术有限公司 | Frequency changer controller with safe torque turn-off function and safe frequency convertor system |
| CN107689764B (en) * | 2017-08-17 | 2020-01-03 | 北京合康新能科技股份有限公司 | Frequency converter control device with safe torque turn-off function and safe frequency converter system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 |