CN201087940Y - AC-DC-AC inverter of composite electric power electronic component - Google Patents
AC-DC-AC inverter of composite electric power electronic component Download PDFInfo
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- CN201087940Y CN201087940Y CNU2007201532006U CN200720153200U CN201087940Y CN 201087940 Y CN201087940 Y CN 201087940Y CN U2007201532006 U CNU2007201532006 U CN U2007201532006U CN 200720153200 U CN200720153200 U CN 200720153200U CN 201087940 Y CN201087940 Y CN 201087940Y
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- inverter
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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Abstract
The utility model relates to an AC-DC-AC inverter of a combined component, which comprises an equivalent direct current supply, a quick compound IGBT component, a horizontal wave capacitance and an inverter. The negative voltage end of the equivalent direct current supply, the negative voltage end of the horizontal wave capacitance and the negative direct current bus end of the inverter are connected, the positive voltage end of the equivalent direct current supply, the positive direct current bus end of the inverter and one end of the quick compound IGBT component are connected mutually, and the other end of the quick compound IGBT component is connected with the positive voltage end of the horizontal wave capacitance mutually. Compared with the traditional AC-DC-AC circuit with a BOOST voltage booster circuit, because the main loop of direct current bus current is not connected with a quick recovery diode in series, the communicating spoilage of the entire circuit is lowered, and the spoilage of the inverter is also reduced. Compared with the traditional two level single-phase soft switch AC-DC-AC convertor, a branch switch component of the horizontal wave capacitance adopts a high speed switched tube component with quick switched property and good recovery property, the inverter adopts a common MOSFET component or a low-speed IGBT component, which also can realize the contravariance of high carrier wave, and increase the cost performance.
Description
Technical field
The utility model relates to a kind of AC-DC-AC inverter, particularly a kind of AC-DC-AC inverter of combination of power electronic device.
Background technology
Along with the extensive use of power electronic equipment, how to solve the harmonic pollution in electric power net that it causes, the efficiency of electromagnetic interference (EMI) and power electronic equipment itself becomes the emphasis that domestic and international experts and scholars pay close attention to.The low power power electronic equipment of centering, the effective way that solves the harmonic pollution problem is to adopt power factor correction (PFC) technology, use traditional B OOST circuit to carry out the preferred option that power factor correction is present producer, yet the hard switching BOOST circuit not only problem of electromagnetic interference (EMI) is serious, thereby and because increased the efficiency that the one-level transformation of electrical energy has reduced whole device; Reduction electromagnetic interference, raising transformation of electrical energy efficient can be obtained fine combination on the resonant type soft-switch technical know-how, but resonant type soft-switch need depend on the parameter condition of device, make and the reliability decrease of whole power electronic equipment also be difficult in the industrial quarters wide popularization and application at present.
Therefore, how developing to have concurrently and improve power factor of electric network, reduce owing to the electromagnetic interference (EMI) that hard switching causes, improve efficiency and guarantee the power electronic equipment of reliability, is the emphasis that experts and scholars and power electronic equipment manufacturer are paid close attention to; It can effectively take into account the performance of this four aspect the single-phase soft naturally switch AC-DC-AC current transformer of tradition two level, simultaneously can export higher ac output voltage, yet it is with respect to the AC-DC-AC current transformer of the uncontrollable rectification of tradition, because many controllable devices, cost still promotes to some extent.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of AC-DC-AC inverter of combination of power electronic device, to remedy the deficiency on the single-phase soft naturally switch AC-DC-AC current transformer cost of traditional two level.
Technical problem to be solved in the utility model can be achieved through the following technical solutions:
A kind of AC-DC-AC inverter of combination of power electronic device is characterized in that it comprises the Equivalent DC power supply, quick compound IGBT device, flat wave capacitor and the inverter that is made of the MOSFET device; The negative voltage side of described Equivalent DC power supply, the negative voltage side of flat wave capacitor, the negative dc bus end three of inverter links to each other, the positive voltage terminal of Equivalent DC power supply, the positive direct-current bus end of inverter, one end three of quick compound IGBT device is connected to each other, and the other end of quick compound IGBT device and the positive voltage terminal of flat wave capacitor are connected to each other.
Described Equivalent DC power supply is by single phase alternating current power supply, and diode rectifier bridge and reactor are formed.
The reverse recovery characteristic of described quick compound IGBT device is better than the reverse recovery characteristic of a switching device in the described inverter.
Described quick compound IGBT device is the MOSFET device with quick recovery characteristics.
The described inverter inverter that IGBT device is at a slow speed formed of can serving as reasons, or, have at least the reverse recovery characteristic of a switching device poorer in the described inverter than the reverse recovery characteristic of quick compound IGBT device by the inverter that dissimilar switching devices combines.
Described inverter is single-phase or polyphase inverter.
The physical location of described quick compound IGBT device and flat wave capacitor can exchange.
The AC-DC-AC inverter of assembling device of the present utility model has following advantage:
1, with respect to the AC-DC-AC circuit of tradition band BOOST booster circuit input stage, because the dc bus current major loop is not in series with fast recovery diode, the conduction loss of entire circuit descends, and the loss of inverter section simultaneously also will descend to some extent.
2, with respect to the single-phase soft naturally switch AC-DC-AC current transformer of traditional two level, the flat wave capacitor branch road has adopted the speed-sensitive switch tube device that has the high-speed switch characteristic and good recovery characteristics is arranged; Inverter has adopted common MOSFET device or low speed IGBT device, but can realize high carrier wave inversion equally, and the cost performance of device is promoted energetically.
Description of drawings
Further specify the utility model below in conjunction with the drawings and specific embodiments.
The AC-DC-AC inverter of Fig. 1 a kind of assembling device of the present utility model;
The AC-DC-AC inverter of Fig. 2 a kind of assembling device of the present utility model.
Embodiment
Embodiment 1:
As shown in Figure 1, a kind of AC-DC-AC inverter of assembling device, it comprises Equivalent DC power supply 1, quick compound IGBT device 2, flat wave capacitor 3 and the tradition two level three-phase inverters of being made up of common MOSFET device S1～S6 4.
The negative voltage side of Equivalent DC power supply 1, the negative voltage side of flat wave capacitor 3, the negative dc bus end three of inverter 4 links to each other, the positive voltage terminal of Equivalent DC power supply 1, the positive direct-current bus end of inverter 4, one end three of quick compound IGBT device 2 is connected to each other, and the positive voltage terminal of the other end of quick compound IGBT device 2 and flat wave capacitor 3 is connected to each other.
Equivalent DC power supply 1 is by single phase alternating current power supply, and diode rectifier bridge and reactor L form.
Embodiment 2:
As shown in Figure 2, single phase alternating current power supply consists of Equivalent DC power supply 1 through behind AC reactor L and the rectifier bridge, and the negative dc bus end of the output that Equivalent DC power supply 1 is negative and the negative voltage side of flat wave capacitor 3 and the tradition two level three-phase inverters 4 be made up of common MOSFET device S1～S6 links together; The positive output of equivalent source 1 with by having the high-speed switch characteristic and having the end of quick compound IGBT device 2 of good recovery characteristics and the positive direct-current bus end of inverter 4 to link together, the positive voltage terminal of the other end of quick compound IGBT device 2 and flat wave capacitor 3 links together.
Quick compound IGBT device 2 of the present utility model can be other MOSFET devices with quick recovery characteristics (as the MOSFET devices by the carbofrax material preparation).
The inverter that inverter 4 of the present utility model can be made up of IGBT device at a slow speed, can be the inverter that combines by dissimilar switching devices also, but have at least the reverse recovery characteristic of a switching device poorer in the inverter than the reverse recovery characteristic of device 2.
Inverter 4 of the present utility model can be single-phase or polyphase inverter.
More than show and described basic principle of the present utility model and principal character and advantage thereof.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification 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. the AC-DC-AC inverter of a combination of power electronic device is characterized in that, it comprises the Equivalent DC power supply, quick compound IGBT device, flat wave capacitor and the inverter that is made of the MOSFET device; The negative voltage side of described Equivalent DC power supply, the negative voltage side of flat wave capacitor, the negative dc bus end three of inverter links to each other, the positive voltage terminal of Equivalent DC power supply, the positive direct-current bus end of inverter, one end three of quick compound IGBT device is connected to each other, and the other end of quick compound IGBT device and the positive voltage terminal of flat wave capacitor are connected to each other.
2. AC-DC-AC inverter according to claim 1 is characterized in that: described Equivalent DC power supply is by single phase alternating current power supply, and diode rectifier bridge and reactor are formed.
3. AC-DC-AC inverter according to claim 1 is characterized in that: the reverse recovery characteristic of described quick compound IGBT device is better than the reverse recovery characteristic of a switching device in the described inverter.
4. AC-DC-AC inverter according to claim 1 is characterized in that: described quick compound IGBT device is the MOSFET device with quick recovery characteristics.
5. AC-DC-AC inverter according to claim 1, it is characterized in that: the described inverter inverter that IGBT device is at a slow speed formed of can serving as reasons, or, have at least the reverse recovery characteristic of a switching device poorer in the described inverter than the reverse recovery characteristic of quick compound IGBT device by the inverter that dissimilar switching devices combines.
6. AC-DC-AC inverter according to claim 1 is characterized in that: described inverter is single-phase or polyphase inverter.
7. AC-DC-AC inverter according to claim 1 is characterized in that: the physical location of described quick compound IGBT device and flat wave capacitor can exchange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201532006U CN201087940Y (en) | 2007-03-30 | 2007-06-25 | AC-DC-AC inverter of composite electric power electronic component |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200720068505.7 | 2007-03-30 | ||
| CN200720068505 | 2007-03-30 | ||
| CNU2007201532006U CN201087940Y (en) | 2007-03-30 | 2007-06-25 | AC-DC-AC inverter of composite electric power electronic component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201087940Y true CN201087940Y (en) | 2008-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201532006U Expired - Fee Related CN201087940Y (en) | 2007-03-30 | 2007-06-25 | AC-DC-AC inverter of composite electric power electronic component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201087940Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522911A (en) * | 2011-11-25 | 2012-06-27 | 华为技术有限公司 | Inverting device and solar PV (Photovoltaic) grid-connected system applying same |
-
2007
- 2007-06-25 CN CNU2007201532006U patent/CN201087940Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522911A (en) * | 2011-11-25 | 2012-06-27 | 华为技术有限公司 | Inverting device and solar PV (Photovoltaic) grid-connected system applying same |
| CN102522911B (en) * | 2011-11-25 | 2014-04-30 | 华为技术有限公司 | Inverting device and solar PV (Photovoltaic) grid-connected system applying same |
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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: 20080716 |