CN202940738U - Triple phase-shift single-phase rectifier circuit - Google Patents
Triple phase-shift single-phase rectifier circuit Download PDFInfo
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- CN202940738U CN202940738U CN 201220565622 CN201220565622U CN202940738U CN 202940738 U CN202940738 U CN 202940738U CN 201220565622 CN201220565622 CN 201220565622 CN 201220565622 U CN201220565622 U CN 201220565622U CN 202940738 U CN202940738 U CN 202940738U
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Abstract
The utility model provides a triple phase-shift single-phase rectifier circuit. The triple phase-shift single-phase rectifier circuit comprises a single-phase alternating current electrical network, a filter circuit, a nature rectifier circuit of which input ends and output ends are connected in parallel, an advanced rectifier circuit and a lagging rectifier circuit, wherein an input end of the filter circuit is connected with the single-phase alternating current electrical network, an output end of the filter circuit is connected with input ends of the nature rectifier circuit of which input ends and output ends are connected in parallel, of the advanced rectifier circuit and of the lagging rectifier circuit, output ends of the nature rectifier circuit of which input ends and output ends are connected in parallel, of the advanced rectifier circuit and of the lagging rectifier circuit are connected. The triple phase-shift single-phase rectifier circuit can be widely applied in electric power electronic converters of which all pre-stage circuits are single-phase rectifiers. The triple phase-shift single-phase rectifier circuit has advantages of simple circuit structure, easy and convenient control, easy design, high network side power factor and stable direct current voltage.
Description
Technical field
The utility model belongs to the converters technical field, relates to a kind of single phase rectifier circuit, particularly relates to a kind of triple phase shift single phase rectifier circuit.
Background technology
In household electrical appliance and the field of switch power of single phase alternating current power supply power supply, the front stage circuits of the converters that adopts mostly adopts single-phase not control rectifying circuit.No matter rear class is negative is with for which kind of load, and control rectifying circuit does not all belong to nonlinear load, produces harmonic current and reactive power in the net side, causes the side harmonics electric current to pollute and lower net side power factor, needs to adopt power factor correction technology for this reason.
For the low-power applications field, can adopt the PPFC (Passive Power Factor Correction) technology at present.Except the power factor correction effect is relatively relatively poor, have the advantages such as simple in structure, that control is easy, therefore still have at present certain application scenario.In PPFC (Passive Power Factor Correction), most of way is to increase inductance on net side line road, carries out harmonic current and suppresses, and its advantage is simple, but calibration result is not very desirable, and inductive drop is larger, has limited load capacity.For this reason, prior art just needs to improve.
The utility model content
The shortcoming of prior art in view of the above, the purpose of this utility model is to provide a kind of triple phase shift single phase rectifier circuit, is used for solving the relatively relatively poor problem of prior art power factor correction effect.
Reach for achieving the above object other relevant purposes, the utility model provides a kind of triple phase shift single phase rectifier circuit, and described triple phase shift single phase rectifier circuits comprise: single phase alternating current (A.C.) electrical network, filter circuit, input and the equal natural commutation device circuit in parallel of output, leading rectification circuit and hysteresis rectification circuit; Wherein, the input of described filter circuit is connected with the single phase alternating current (A.C.) electrical network, the output of described filter circuit and described input and the output all input of natural commutation device circuit, leading rectification circuit and hysteresis rectification circuit in parallel are connected, described input and output all natural commutation bridge circuit in parallel, the output of rectification circuit and hysteresis rectification circuit is connected in advance.
Preferably, the single phase alternating current (A.C.) electrical network comprises live wire and zero line.
Preferably, described filter circuit comprises: filter inductance and filter capacitor; Wherein, the input of described filter inductance is connected with the live wire of described single phase alternating current (A.C.) electrical network, and the output of described filter inductance is connected with an end of described filter capacitor, and the other end of described filter capacitor is connected with the zero line of described single phase alternating current (A.C.) electrical network.
Preferably, described input comprises with the equal natural commutation device circuit in parallel of output: the first diode rectifier bridge, electrochemical capacitor, steady resistance; Wherein, described electrochemical capacitor and steady resistance are in parallel; Two inputs of described the first diode rectifier bridge respectively with described filter circuit in the other end of an end of filter capacitor, the output cathode of described the first diode rectifier bridge connects the positive pole of electrochemical capacitor, and the output negative pole of described the first diode rectifier bridge connects electrochemical capacitor.
Preferably, the output cathode of described the first diode rectifier bridge connects the positive pole of electrochemical capacitor, forms the direct current output cathode, and the output negative pole of described the first diode rectifier bridge connects the negative pole of electrochemical capacitor, forms the direct current output negative pole.
Preferably, described leading rectification circuit comprises: the first transformer, the second diode rectifier bridge and shift capacitor; Wherein, one end of the filter capacitor in one end of described shift capacitor and described filter circuit is connected, the other end of described shift capacitor is connected with an end of described the first primary, and the other end of the filter capacitor in the other end of described the first primary and filter circuit is connected; The two ends of described the first transformer secondary output are connected with two ac input ends of described the second diode rectifier bridge respectively, two output cathodes of described the second diode rectifier bridge and output negative pole respectively with described input and output all two direct current output cathodes of natural commutation device circuit in parallel be connected with the output negative pole same polarity.
Preferably, described hysteresis rectification circuit comprises: the second transformer, the 3rd diode rectifier bridge and phase shift inductance; Wherein, one end of the filter capacitor in one end of described phase shift inductance and described filter circuit is connected, the other end of described phase shift inductance is connected with an end of described the second primary, and the other end of the filter capacitor in the other end of described the second primary and filter circuit is connected; The two ends of described the second transformer secondary output are connected with two ac input ends of the 3rd diode rectifier bridge respectively, two direct current output cathodes of the 3rd diode rectifier bridge and output negative pole respectively with described input and output all two direct current output cathodes of natural commutation device circuit in parallel be connected with the output negative pole same polarity.
As mentioned above, triple phase shift single phase rectifier circuits described in the utility model have following beneficial effect:
1, circuit structure is simple, control is easy;
2, suppress harmonic current, power factor correction is effective.
Description of drawings
Fig. 1 is shown as the circuit diagram of triple phase shift single phase rectifier circuits of the present utility model.
The element numbers explanation
1 single phase alternating current (A.C.) electrical network
2 filter circuits
3 inputs and the equal natural commutation device circuit in parallel of output
4 leading rectification circuits
5 hysteresis rectification circuits
Embodiment
Below by specific instantiation explanation execution mode of the present utility model, those skilled in the art can understand other advantages of the present utility model and effect easily by the disclosed content of this specification.The utility model can also be implemented or be used by other different embodiment, and the every details in this specification also can be based on different viewpoints and application, carries out various modifications or change under spirit of the present utility model not deviating from.
See also accompanying drawing.Need to prove, the diagram that provides in the present embodiment only illustrates basic conception of the present utility model in a schematic way, satisfy only show in graphic with the utility model in relevant assembly but not component count, shape and size drafting when implementing according to reality, during its actual enforcement, kenel, quantity and the ratio of each assembly can be a kind of random change, and its assembly layout kenel also may be more complicated.
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Embodiment
The present embodiment provides a kind of triple phase shift single phase rectifier circuit, as shown in Figure 1, described triple phase shift single phase rectifier circuit comprises: single phase alternating current (A.C.) electrical network 1, filter circuit 2, input and the equal natural commutation device circuit 3 in parallel of output, leading rectification circuit 4 and hysteresis rectification circuit 5.Wherein, the input of described filter circuit 2 is connected with single phase alternating current (A.C.) electrical network 1, the output of described filter circuit 2 is connected with the input of the natural commutation device circuit 3 of described input and the equal parallel connection of output, leading rectification circuit 4 and hysteresis rectification circuit 5, described input is connected with the output of the natural commutation bridge circuit 3 of the equal parallel connection of output, leading rectification circuit 4 and hysteresis rectification circuit 5, form output cathode DCP and negative pole DCN, thereby consist of triple phase shift single phase rectifier circuits.
Described single phase alternating current (A.C.) electrical network 1 comprises: live wire ACL and zero line ACN.
Described filter circuit 2 comprises: filter inductance L1 and filter capacitor C1; Wherein, the input of described filter inductance L1 is connected with the live wire ACL of described single phase alternating current (A.C.) electrical network 1, the output of described filter inductance L1 is connected with the end of described filter capacitor C1, form node A, the other end of described filter capacitor C1 is connected with the zero line VCN of described single phase alternating current (A.C.) electrical network 1, form Node B, node A and B form the output of described filter circuit 1.
Described input comprises with the equal natural commutation device circuit 3 in parallel of output: the first diode rectifier bridge B1, electrochemical capacitor E1, steady resistance R1; Wherein, described electrochemical capacitor E1 and steady resistance R1 are in parallel; Two inputs of described the first diode rectifier bridge B1 respectively with described filter circuit 1 in the other end of an end of filter capacitor C1, namely be connected with B with node A respectively, the output cathode of described the first diode rectifier bridge B1 connects the positive pole of electrochemical capacitor C1, form direct current output cathode DCP, the output negative pole of described the first diode rectifier bridge B1 connects the negative pole of electrochemical capacitor C1, forms direct current output negative pole DCN.
Described leading rectification circuit 4 comprises: the first transformer TR1, the second diode rectifier bridge B2 and shift capacitor C2; Wherein, the end of filter capacitor C1 in the end of described shift capacitor C2 and described filter circuit 1 is connected, namely be connected with node A, the elementary end of the other end of described shift capacitor C2 and described the first transformer TR1 is connected, the other end of filter capacitor C1 in the elementary other end of described the first transformer TR1 and filter circuit 1 is connected, and namely is connected with Node B; The two ends of described the first transformer TR1 time level are connected with two ac input ends of described the second diode rectifier bridge B2 respectively, two output cathodes of described the second diode rectifier bridge B2 and output negative pole respectively with described input and output all two direct current output cathode DCP of the natural commutation device circuit 3 of parallel connection be connected with negative pole DCN same polarity.
Described hysteresis rectification circuit 5 comprises: the second transformer TR2, the 3rd diode rectifier bridge B3 and phase shift inductance L 2; Wherein, the end of filter capacitor C1 in one end of described phase shift inductance L 2 and described filter circuit 1 is connected, namely be connected with node A, the elementary end of the other end of described phase shift inductance L 2 and described the second transformer TR2 is connected, the other end of filter capacitor C1 in the elementary other end of described the second transformer TR2 and filter circuit 1 is connected, and namely is connected with Node B; The two ends of described the second transformer TR2 time level are connected with two ac input ends of the 3rd diode rectifier bridge B3 respectively, two direct current output cathodes of the 3rd diode rectifier bridge B3 and output negative pole respectively with described input and output all two direct current output cathode DCP of the natural commutation device circuit 3 of parallel connection be connected with output negative pole DCN same polarity.
The operation principle of the present embodiment is:
The utility model is by the phase-shifting commutation principle, generation stagger the time rectification and capable of regulating intensity of flow, improve filter circuit rear class current waveform, after filtration after the wave circuit effect, obtain the approximate unit power factor in the net side, realize suppressing harmonic current and improve net side power factor, can realize six pulsation rectifications simultaneously, improving the VD waveform.
Described input is main converter with the equal natural commutation device circuit 3 in parallel of output, is used for transmitting main power, produces the position narrow current waveform of list placed in the middle; Described leading rectification circuit 4 is time rectifier, is used for transmitting time power, produces the leading narrow current waveform of list in position; Hysteresis rectification circuit 4 is time rectifier, is used for transmitting time power, produces the narrow current waveform of list of position lag.At node A and synthetic these the three groups single narrow current waveforms of Node B, just can obtain the higher current waveform of sinusoidal degree after 2 filtering of wave circuit after filtration after these three groups single narrow current waveforms are synthetic, get final product correcting power factors.Be exactly to utilize three groups of rectifiers that phase place is different in brief, be input and the equal natural commutation device circuit 3 in parallel of output, leading rectification circuit 4, hysteresis rectification circuit 5, generation stagger the time rectification and capable of regulating intensity of flow, wave circuit 2 effects after filtration suppress harmonic current and improve net side power factor.These three groups of different rectifiers of phase place are equivalent to six pulsation rectifications, and this six pulsation rectification can improve net side power factor.
The AC power of single phase alternating current (A.C.) electrical network is 220VAC in the present embodiment, and rated output power is 3.5kW, unloaded output voltage 310V, specified output dc voltage 275VDC; Rated current and the rated voltage of three rectifier B1, B2, B3 are 25A/800V; Filter inductance L1 is 5.1mH; Filter inductance L2 is 10.0mH; Filter capacitor C1 is ac capacitor 2.0 μ F/275V; Shift capacitor C2 is ac capacitor 10.0 μ F/275V; First transformer TR1～TR2 is power frequency silicon steel transformer, input ac voltage 220VAC, unloaded output AC voltage 220VAC; Electrochemical capacitor E1 is six shunt capacitance groups, 6x680 μ F/350V.
Triple phase shift single phase rectifier circuit described in the utility model can be widely used in the converters that all front stage circuits are single-phase rectifier, and its circuit structure is simple, controls easy,, simple in structure, design easily, net side power factor is high, and direct voltage is steady.
In sum, the utility model has effectively overcome various shortcoming of the prior art and the tool high industrial utilization.
Above-described embodiment is illustrative principle of the present utility model and effect thereof only, but not is used for restriction the utility model.Any person skilled in the art scholar all can under spirit of the present utility model and category, modify or change above-described embodiment.Therefore, have in technical field under such as and know that usually the knowledgeable modifies or changes not breaking away from all equivalences of completing under spirit that the utility model discloses and technological thought, must be contained by claim of the present utility model.
Claims (7)
1. triple phase shift single phase rectifier circuit, it is characterized in that, described triple phase shift single phase rectifier circuits comprise: single phase alternating current (A.C.) electrical network, filter circuit, input and the equal natural commutation device circuit in parallel of output, leading rectification circuit and hysteresis rectification circuit; Wherein, the input of described filter circuit is connected with the single phase alternating current (A.C.) electrical network, the output of described filter circuit and described input and the output all input of natural commutation device circuit, leading rectification circuit and hysteresis rectification circuit in parallel are connected, described input and output all natural commutation bridge circuit in parallel, the output of rectification circuit and hysteresis rectification circuit is connected in advance.
2. triple phase shift single phase rectifier circuit according to claim 1, it is characterized in that: the single phase alternating current (A.C.) electrical network comprises live wire and zero line.
3. triple phase shift single phase rectifier circuit according to claim 1, it is characterized in that: described filter circuit comprises: filter inductance and filter capacitor; Wherein, the input of described filter inductance is connected with the live wire of described single phase alternating current (A.C.) electrical network, and the output of described filter inductance is connected with an end of described filter capacitor, and the other end of described filter capacitor is connected with the zero line of described single phase alternating current (A.C.) electrical network.
4. triple phase shift single phase rectifier circuit according to claim 1 is characterized in that: described input and output all natural commutation device circuit in parallel comprise: the first diode rectifier bridge, electrochemical capacitor, steady resistance; Wherein, described electrochemical capacitor and steady resistance are in parallel; Two inputs of described the first diode rectifier bridge respectively with described filter circuit in the other end of an end of filter capacitor, the output cathode of described the first diode rectifier bridge connects the positive pole of electrochemical capacitor, and the output negative pole of described the first diode rectifier bridge connects electrochemical capacitor.
5. triple phase shift single phase rectifier circuit according to claim 4, it is characterized in that: the output cathode of described the first diode rectifier bridge connects the positive pole of electrochemical capacitor, form the direct current output cathode, the output negative pole of described the first diode rectifier bridge connects the negative pole of electrochemical capacitor, forms the direct current output negative pole.
6. triple phase shift single phase rectifier circuit according to claim 1, it is characterized in that: described leading rectification circuit comprises: the first transformer, the second diode rectifier bridge and shift capacitor; Wherein, one end of the filter capacitor in one end of described shift capacitor and described filter circuit is connected, the other end of described shift capacitor is connected with an end of described the first primary, and the other end of the filter capacitor in the other end of described the first primary and filter circuit is connected; The two ends of described the first transformer secondary output are connected with two ac input ends of described the second diode rectifier bridge respectively, two output cathodes of described the second diode rectifier bridge and output negative pole respectively with described input and output all two direct current output cathodes of natural commutation device circuit in parallel be connected with the output negative pole same polarity.
7. triple phase shift single phase rectifier circuit according to claim 1, it is characterized in that: described hysteresis rectification circuit comprises: the second transformer, the 3rd diode rectifier bridge and phase shift inductance; Wherein, one end of the filter capacitor in one end of described phase shift inductance and described filter circuit is connected, the other end of described phase shift inductance is connected with an end of described the second primary, and the other end of the filter capacitor in the other end of described the second primary and filter circuit is connected; The two ends of described the second transformer secondary output are connected with two ac input ends of the 3rd diode rectifier bridge respectively, two direct current output cathodes of the 3rd diode rectifier bridge and output negative pole respectively with described input and output all two direct current output cathodes of natural commutation device circuit in parallel be connected with the output negative pole same polarity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220565622 CN202940738U (en) | 2012-10-31 | 2012-10-31 | Triple phase-shift single-phase rectifier circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220565622 CN202940738U (en) | 2012-10-31 | 2012-10-31 | Triple phase-shift single-phase rectifier circuit |
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| Publication Number | Publication Date |
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| CN202940738U true CN202940738U (en) | 2013-05-15 |
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| CN 201220565622 Expired - Lifetime CN202940738U (en) | 2012-10-31 | 2012-10-31 | Triple phase-shift single-phase rectifier circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106452115A (en) * | 2016-12-12 | 2017-02-22 | 梁正 | Double-bridge rectifying circuit capable of reducing power consumption and harmonic pollution |
-
2012
- 2012-10-31 CN CN 201220565622 patent/CN202940738U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106452115A (en) * | 2016-12-12 | 2017-02-22 | 梁正 | Double-bridge rectifying circuit capable of reducing power consumption and harmonic pollution |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: RUKING EMERSON CLIMATE TECHNOLOGY (SHANGHAI) CO., Free format text: FORMER OWNER: SHANGHAI RUKING ELECTRONIC SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20140805 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140805 Address after: 200433 room 323, No. 1101-163, National Road, Shanghai, Yangpu District Patentee after: RUKING EMERSON CLIMATE TECHNOLOGIES (SHANGHAI) CO.,LTD. Address before: 200433 Shanghai City, Yangpu District National Road No. 335 Building No. 2, 1803, 1805, 1806, 1807. Patentee before: SHANGHAI RUKING ELECTRONICS Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 200433 room 323, No. 1101-163, National Road, Shanghai, Yangpu District Patentee after: Shanghai Rujing Intelligent Control Technology Co.,Ltd. Address before: 200433 room 323, No. 1101-163, National Road, Shanghai, Yangpu District Patentee before: RUKING EMERSON CLIMATE TECHNOLOGIES (SHANGHAI) Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130515 |
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| CX01 | Expiry of patent term |