CN204928575U - DC conversion , contravariant and frequency conversion all -in -one - Google Patents
DC conversion , contravariant and frequency conversion all -in -one Download PDFInfo
- Publication number
- CN204928575U CN204928575U CN201520561271.4U CN201520561271U CN204928575U CN 204928575 U CN204928575 U CN 204928575U CN 201520561271 U CN201520561271 U CN 201520561271U CN 204928575 U CN204928575 U CN 204928575U
- Authority
- CN
- China
- Prior art keywords
- converter
- frequency
- direct
- conversion
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Inverter Devices (AREA)
Abstract
The utility model provides a DC conversion, contravariant and frequency conversion all -in -one, including direct -current converter and the dc -to -ac converter that links to each other, direct -current converter's input links to each other with the low pressure dc bus, direct -current converter's output with the input of dc -to -ac converter links to each other, direct -current converter includes switch direct current boost circuit, a frequency converter, a motor, a crankshaft position sensor, a switching power supply and a digital frequency meter, the input of converter with direct -current converter's output links to each other, control module is used for detecting direct -current converter the dc -to -ac converter and the operating condition of converter, and it is right direct -current converter the dc -to -ac converter and the converter is controlled. Integrate DC conversion circuit, inverter circuit and frequency converting circuit, reduced outside wiring, reduced the equipment volume, simultaneously this three circuit sharing dc bus and controller have reduced the cost of equipment.
Description
Technical field
The utility model relates to field of electrical control, particularly relates to a kind of DC converting, inversion and frequency conversion all-in-one.
Background technology
Power electronic technology design electronics, electrodynamic and control theory, along with power device to develop rapidly with control theory increasingly mature, the product based on power electronic technology is also more and more extensive.Inverter, frequency converter, DC converter, had relevant product at present in application.But in the prior art, DC transfer circuit, inverter circuit and frequency changer circuit are arranged all separately, cause external cabling too much, the problem that equipment volume is large, cost is high.
Utility model content
In view of the above problems, the application describes a kind of DC converting, inversion and frequency conversion all-in-one, comprise connected DC converter and inverter, the input of described DC converter is connected with low-voltage direct bus, and the output of described DC converter is connected with the input of described inverter.
Preferably, described DC converter comprises switch DC booster circuit.
Preferably, also comprise frequency converter, the input of described frequency converter is connected with the output of described DC converter.
Preferably, also comprise controller, described controller is connected with described DC converter, described inverter and described frequency converter respectively, for detecting the operating state of described DC converter, described inverter and described frequency converter, and described DC converter, described inverter and described frequency converter are controlled.
Preferably, the output of described DC converter exports the direct current of 540V.
Technique scheme tool has the following advantages or beneficial effect: DC converting, inversion and frequency conversion all-in-one, is undertaken integrated, decreases external cabling, reduce equipment volume by DC transfer circuit, inverter circuit and frequency changer circuit; This three circuit general DC busbars and controller, reduce the cost of equipment simultaneously.
Accompanying drawing explanation
With reference to appended accompanying drawing, to describe embodiment of the present utility model more fully.But, appended accompanying drawing only for illustration of and elaboration, do not form the restriction to the utility model scope.
Fig. 1 is the structural representation of a kind of DC converting of the utility model, inversion and frequency conversion all-in-one;
Fig. 2 is the circuit diagram of a kind of DC converting of the utility model, inversion and frequency conversion all-in-one.
Embodiment
Below in conjunction with the drawings and specific embodiments, a kind of DC converting of the utility model, inversion and frequency conversion all-in-one are described in detail.
As shown in Figure 1, a kind of DC converting, inversion and frequency conversion all-in-one, comprising:
Low-voltage direct bus, in order to provide low-voltage DC;
High voltage dc bus, can high voltage direct current in order to improve;
DC converter, changes the DC converter of other voltage kinds into by direct current fundamental power supply.Described DC converter inverse of the DC into AC, and then rectifying conversion becomes another kind of direct voltage.Specifically, the input of described DC converter is connected with low-voltage direct bus, receives the low-voltage direct that the transmission of described low-voltage direct bus comes, processes this low-voltage direct, obtains high voltage direct current.The output of described DC converter is connected with high voltage dc bus, and its high voltage direct current exported is passed to described high voltage dc bus.Preferably, described DC converter is switch DC booster circuit, i.e. Boost circuit, and described low-voltage DC exports 540V high voltage direct current by after Boost circuit process.
Inverter, inverter can change direct current energy into alternating current, and namely inverter is a kind of is the device of alternating current by DC conversion, and it is made up of inverter bridge, control logic and filter circuit.Inverter is widely used in the electronic equipments such as air-conditioning, home theater, electric tool and product.
The input of described inverter is connected with described high voltage dc bus, receives the high voltage direct current that described high voltage dc bus transmission comes, obtains alternating current, and outwards transmit from output described high voltage direct current after processing.The alternating current for 220V that described inverter finally exports.
Frequency converter, being a kind of application converter technique and microelectric technique, controlling the electric control appliance of alternating current motor, primarily of compositions such as rectification, filtering, inversion, brake unit, driver elements by changing machine operation supply frequency mode.The main circuit of described frequency converter is the power converting part providing voltage regulation and frequency modulation power supply to asynchronous motor, and the main circuit of frequency converter can be divided into two classes substantially: voltage-type is the frequency converter exchanged by the DC converting of voltage source, and the filtering of DC loop is electric capacity; Current mode is the frequency converter exchanged by the DC converting of current source, and its DC loop filtering is inductance.
In the utility model, described frequency converter is current-mode converter, and the input of described frequency converter is connected with described high voltage dc bus, and described high voltage dc bus is to described frequency converter input high voltage direct current, described frequency converter processes described high voltage direct current, exports High Level AC Voltage.The final output of described frequency converter is the alternating current of 380V.
Described DC converting, inversion, frequency conversion all-in-one also comprise a controller, and described controller is connected with described DC converter, inverter and frequency converter respectively, for controlling the operating state of DC converter, inverter and frequency converter.
As shown in Figure 2, it is the electrical block diagram of described all-in-one.The low-voltage direct that described DC converter reception low-voltage direct bus sends also processes this low-voltage direct, and obtain high voltage direct current, this high voltage direct current is 540V; Described high voltage direct current flows to inverter and frequency converter respectively, and described inverter carries out described high voltage direct current processing the alternating current obtaining 220V, and described frequency converter carries out described high voltage direct current processing the alternating current obtaining 380V.This design, is undertaken integrated by DC transfer circuit, inverter circuit and frequency changer circuit, decreases external cabling, reduce equipment volume; This three circuit general DC busbars and controller, reduce the cost of equipment simultaneously.
For a person skilled in the art, after reading above-mentioned explanation, various changes and modifications undoubtedly will be apparent.Therefore, appending claims should regard the whole change and correction of containing true intention of the present utility model and scope as.In Claims scope, the scope of any and all equivalences and content, all should think and still belong in intention of the present utility model and scope.
Claims (5)
1. a DC converting, inversion and frequency conversion all-in-one, it is characterized in that, comprise connected DC converter and inverter, the input of described DC converter is connected with low-voltage direct bus, and the output of described DC converter is connected with the input of described inverter.
2. DC converting according to claim 1, inversion and frequency conversion all-in-one, is characterized in that, described DC converter comprises switch DC booster circuit.
3. DC converting according to claim 1, inversion and frequency conversion all-in-one, is characterized in that, described all-in-one also comprises frequency converter, and the input of described frequency converter is connected with the output of described DC converter.
4. DC converting according to claim 3, inversion and frequency conversion all-in-one, it is characterized in that, also comprise controller, described controller is connected with described DC converter, described inverter and described frequency converter respectively, for detecting the operating state of described DC converter, described inverter and described frequency converter, and described DC converter, described inverter and described frequency converter are controlled.
5. DC converting according to claim 3, inversion and frequency conversion all-in-one, is characterized in that, the output of described DC converter exports the direct current of 540V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520561271.4U CN204928575U (en) | 2015-07-29 | 2015-07-29 | DC conversion , contravariant and frequency conversion all -in -one |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520561271.4U CN204928575U (en) | 2015-07-29 | 2015-07-29 | DC conversion , contravariant and frequency conversion all -in -one |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204928575U true CN204928575U (en) | 2015-12-30 |
Family
ID=54977671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520561271.4U Active CN204928575U (en) | 2015-07-29 | 2015-07-29 | DC conversion , contravariant and frequency conversion all -in -one |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204928575U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105790569A (en) * | 2016-04-19 | 2016-07-20 | 华南理工大学 | Chaotic control circuit capable of increasing gains of DC-DC converter |
| CN114123765A (en) * | 2021-12-02 | 2022-03-01 | 中信重工开诚智能装备有限公司 | Multifunctional circuit for frequency conversion all-in-one machine and control method |
-
2015
- 2015-07-29 CN CN201520561271.4U patent/CN204928575U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105790569A (en) * | 2016-04-19 | 2016-07-20 | 华南理工大学 | Chaotic control circuit capable of increasing gains of DC-DC converter |
| CN105790569B (en) * | 2016-04-19 | 2018-04-13 | 华南理工大学 | A kind of chaos controlling circuit of raising DC DC transducer gains |
| CN114123765A (en) * | 2021-12-02 | 2022-03-01 | 中信重工开诚智能装备有限公司 | Multifunctional circuit for frequency conversion all-in-one machine and control method |
| CN114123765B (en) * | 2021-12-02 | 2023-11-28 | 中信重工开诚智能装备有限公司 | Multifunctional circuit for frequency conversion all-in-one machine and control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103091587B (en) | Energy-saving inverter test circuit and control method | |
| CN203368361U (en) | Photovoltaic inverter with multipath direct current input | |
| CN104702123A (en) | Main loop of three-level power unit, power unit and high voltage frequency changer | |
| CN206002663U (en) | A kind of comprehensive test system being applied to many motors | |
| CN103904907A (en) | Alternating-current digital control voltage-regulation current-control power transmission device | |
| CN204928575U (en) | DC conversion , contravariant and frequency conversion all -in -one | |
| CN103515979A (en) | Low-cost single-phase integrated energy feedback system | |
| CN104660021B (en) | The pre-charge circuit of inverter | |
| CN105471339B (en) | A kind of asynchronous starting device of brushless double-fed motor | |
| CN105610351A (en) | Double-motor drive device | |
| CN209435120U (en) | High-power frequency conversion expanded circuit, control device, frequency conversion drive plate and frequency-changeable compressor system | |
| CN203456879U (en) | Low-cost single-phase integrated energy feedback system | |
| CN105098816A (en) | High voltage direct current transmission system and control method thereof | |
| CN105024396A (en) | Energy feedback frequency converter | |
| CN103607123A (en) | Combined four-quadrant coal mine explosion-proof frequency converter | |
| CN207475424U (en) | A kind of work mine locomotive variable-frequency power sources | |
| Kalyan et al. | Analysis and design of power electronic transformer based power quality improvement | |
| CN203454344U (en) | Temperature adjusting system of elevator control chamber | |
| CN206796639U (en) | A kind of forcing press and its control system | |
| CN203025291U (en) | Energy-saving inverter test circuit | |
| CN201690371U (en) | Inverter | |
| CN201942373U (en) | Energy-saving elevator | |
| CN207053428U (en) | 220V threephase asynchronous private energy-saving apparatus | |
| CN203014689U (en) | Power supply management device and complete machine cabinet | |
| CN204376511U (en) | Based on the large power, electrically electrical automobile quick charger of universal frequency converter benchmark |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yin Zhizhu Inventor after: Yang Jie Inventor after: Zhu Fengtian Inventor after: Wu Jiahua Inventor before: Yin Zhizhu Inventor before: Yang Jie |
|
| COR | Change of bibliographic data | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: SHANGHAI ELECTRIC DISTRIBUTED ENERGY TECHNOLOGY CO., LTD. Assignor: Shanghai Electrical Group Co., Ltd. Contract record no.: 2016310000041 Denomination of utility model: DC conversion , contravariant and frequency conversion all -in -one Granted publication date: 20151230 License type: Exclusive License Record date: 20160908 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model |