CN201656894U - Small and medium-sized three-phase digital generator set - Google Patents
Small and medium-sized three-phase digital generator set Download PDFInfo
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- CN201656894U CN201656894U CN2010201808516U CN201020180851U CN201656894U CN 201656894 U CN201656894 U CN 201656894U CN 2010201808516 U CN2010201808516 U CN 2010201808516U CN 201020180851 U CN201020180851 U CN 201020180851U CN 201656894 U CN201656894 U CN 201656894U
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Abstract
The utility model discloses a small and medium-sized three-phase digital generator set. A permanent magnetic generator is provided with three independent main windings; an inverting controller is provided with three paths of independent rectifying filter circuits and three H-bridge inverting circuits time phase differences of which are 120 degrees; the outputs of the three main windings are respectively connected with the inputs corresponding to the rectifying filter circuits; the outputs of the three paths of the rectifying filter circuits are respectively connected with the inputs corresponding to the three H-bridge inverting circuits; each H-bridge inverting circuit is provided with two output ends; one of the output ends of each H-bridge inverting circuit is respectively filtered by an inductor and a capacitor and then is output used as a three-phase line; and the other output ends of the three H-bridge inverting circuits are connected together. The generator set is inverted and then can be directly connected together without an output transformer to form three-phase or single-phase output, thereby solving the problems of the volume, the weight, the cost and the like and applying the inverter control technology to the small and medium-sized generator set.
Description
Technical field
The utility model relates to a kind of three-phase digital electricity generating group, specifically refer to a kind of by inverter control not with the middle-size and small-size digital permanent magnet alternating current generating set of output transformer.
Background technology
Small-sized digital electricity generating group is made up of internal combustion engine, permanent magnet generator, inverter controller.Had much and reported about the technology of three-phase inversion, three phase variable frequency.With regard at present disclosed technology and product, all be not suitable for the medium and small generator group.Existing three-phase inverting circuit has the band output transformer and is not with two kinds of forms of output transformer.The inversion with output transformer relatively is not suitable for three phase symmetry load, and the inversion of band output transformer is suitable for the three-phase asymmetric load.Export except the needs three phase supply as the three-phase medium and small generator group of power with internal combustion engine, also needing has single-phase output simultaneously, and there is asymmetric situation in threephase load, therefore needs the band output transformer.And the transformer that the inverting of band output transformer needs exists a series of problems such as volume is big, Heavy Weight, cost height are not suitable for being used in the medium and small generator group, therefore at present also not by the medium and small generator group of inverter control.
The utility model content
At the prior art above shortcomings, the purpose of this utility model provide a kind of by inverter control not with the middle-size and small-size three-phase digital electricity generating group of output transformer.
The purpose of this utility model is achieved in that a kind of middle-size and small-size three-phase digital electricity generating group, comprise internal combustion engine, permanent magnet generator and inverter controller, described permanent magnet generator has three independently main windings, inverter controller have the three paths of independent current rectifying and wave filtering circuit with the time differ 120 the degree three H bridge inverter circuits, the output of these three main windings connects the input of corresponding current rectifying and wave filtering circuit respectively, the output of this three road current rectifying and wave filtering circuit connects the input of corresponding three H bridge inverter circuits respectively, three H bridge inverter circuits respectively have two outputs, each one of them output of H bridge inverter circuit is respectively through inductance, as three phase line outputs, another output of three H bridge inverter circuit remainders links together behind the capacitor filtering.
Further, three of described permanent magnet generatores independently main winding are three-phase or single-phase, and another output of three H bridge inverter circuit remainders links together accordingly as the neutral line of three-phase output or the zero line of single-phase output.
Three H bridge inverter circuits differ 120 degree and realize that by control circuit for pulse-width modulation the output of control circuit for pulse-width modulation is connected with the input of three H bridge inverter circuits respectively.
The utility model is owing to be wound with three independently main windings on permanent magnet generator, form three independently ac main powers, therefore after inversion, can directly link together without output transformer, form three-phase or single-phase output, solve problems such as volume, weight and cost thus, therefore adverser control technology can be applied to the medium and small generator group.
Description of drawings
Fig. 1-formation block diagram of the present utility model.
A kind of inverter system of Fig. 2-the utility model constitutes block diagram.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Referring to Fig. 1 and Fig. 2, as can be seen, the middle-size and small-size digital three-phase generation unit of the utility model mainly is made of internal combustion engine, permanent magnet generator, inverter controller from the figure.Be wound with three independently main windings on the stator of permanent magnet generator, each main winding both can be single-phase, also can be three-phase.Inverter controller has three independently current rectifying and wave filtering circuits, the output of three main windings connects the input of corresponding current rectifying and wave filtering circuit respectively, carry out independently rectification with output (i.e. three ac main powers), form three independently direct current main power sources three main windings of permanent magnet generator.Inverter controller also has three independently H bridge inverter circuits, and the output of above-mentioned three road current rectifying and wave filtering circuits connects the input of corresponding three H bridge inverter circuits respectively, obtains differing 120 alternating currents of spending three main dc power supplies are carried out inversion.Differ 120 degree during three H bridge inverter circuits and realize that by control circuit for pulse-width modulation control the output of control circuit for pulse-width modulation connects the input of three H bridge inverter circuits simultaneously.Every road H bridge inverter circuit has two outputs, and every road one of them output line of H bridge inverter circuit is joined together to form the neutral line of three-phase output, and also the zero line as single-phase output uses; Three road H bridge inverter circuits another output line separately connects a filter inductance respectively, and as the three-phase output line, the live wire that also can be used as single-phase output uses after the filtering; Connect filter capacitor between the three-phase output and the neutral line.
Claims (3)
1. one kind middle-size and small-size three-phase digital electricity generating group, comprise internal combustion engine, permanent magnet generator and inverter controller, it is characterized in that: described permanent magnet generator has three independently main windings, inverter controller have the three paths of independent current rectifying and wave filtering circuit with the time differ 120 the degree three H bridge inverter circuits, the output of these three main windings connects the input of corresponding current rectifying and wave filtering circuit respectively, the output of this three road current rectifying and wave filtering circuit connects the input of corresponding three H bridge inverter circuits respectively, three H bridge inverter circuits respectively have two outputs, each one of them output of H bridge inverter circuit is respectively through inductance, as three phase line outputs, another output of three H bridge inverter circuit remainders links together behind the capacitor filtering.
2. middle-size and small-size three-phase digital electricity generating group according to claim 1, it is characterized in that: three of described permanent magnet generatores independently main winding are three-phase or single-phase, and another output of three H bridge inverter circuit remainders links together accordingly as the neutral line of three-phase output or the zero line of single-phase output.
3. middle-size and small-size three-phase digital electricity generating group according to claim 1 and 2, it is characterized in that: three H bridge inverter circuits differ 120 degree and realize that by control circuit for pulse-width modulation the output of control circuit for pulse-width modulation is connected with the input of three H bridge inverter circuits respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201808516U CN201656894U (en) | 2010-05-06 | 2010-05-06 | Small and medium-sized three-phase digital generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201808516U CN201656894U (en) | 2010-05-06 | 2010-05-06 | Small and medium-sized three-phase digital generator set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201656894U true CN201656894U (en) | 2010-11-24 |
Family
ID=43122124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201808516U Expired - Fee Related CN201656894U (en) | 2010-05-06 | 2010-05-06 | Small and medium-sized three-phase digital generator set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201656894U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102299638A (en) * | 2011-07-29 | 2011-12-28 | 北京工业大学 | Large-power steady transmitting device with continuously adjustable voltage width range |
| CN102790572A (en) * | 2011-05-17 | 2012-11-21 | 本田技研工业株式会社 | Parallel running control apparatus for inverter generators |
| CN102790573A (en) * | 2011-05-17 | 2012-11-21 | 本田技研工业株式会社 | Inverter generator |
-
2010
- 2010-05-06 CN CN2010201808516U patent/CN201656894U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102790572A (en) * | 2011-05-17 | 2012-11-21 | 本田技研工业株式会社 | Parallel running control apparatus for inverter generators |
| CN102790573A (en) * | 2011-05-17 | 2012-11-21 | 本田技研工业株式会社 | Inverter generator |
| CN102299638A (en) * | 2011-07-29 | 2011-12-28 | 北京工业大学 | Large-power steady transmitting device with continuously adjustable voltage width range |
| CN102299638B (en) * | 2011-07-29 | 2014-01-15 | 北京工业大学 | Large-power steady transmitting device with continuously adjustable voltage width range |
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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: 20101124 Termination date: 20170506 |