CN105826951A - Reconfigurable single-phase digital variable-frequency generator - Google Patents
Reconfigurable single-phase digital variable-frequency generator Download PDFInfo
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- CN105826951A CN105826951A CN201610398147.XA CN201610398147A CN105826951A CN 105826951 A CN105826951 A CN 105826951A CN 201610398147 A CN201610398147 A CN 201610398147A CN 105826951 A CN105826951 A CN 105826951A
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- outfan
- groups
- bridge output
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/483—Converters with outputs that each can have more than two voltages levels
- H02M7/49—Combination of the output voltage waveforms of a plurality of converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
- H02M1/007—Plural converter units in cascade
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Ac-Ac Conversion (AREA)
- Inverter Devices (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
The invention discloses a reconfigurable single-phase digital variable-frequency generator. The reconfigurable single-phase digital variable-frequency generator comprises a programmable phase signal generator, a plurality of single-phase inverters and independent power supply generators connected with the single-phase inverters. Each single-phase inverter comprises a phase synchronizer, a sine wave signal generator with a phase lock, an automatic gain control module, an SPWM module, an isolation drive module and an H-bridge output module which are connected in sequence. The programmable phase signal generator is connected with the phase synchronizers of all the single-phase inverters, and the connection mode of the output ends of the H-bridge output modules of the single-phase inverters is any one of a serial connection mode, a parallel connection mode, a starlike connection mode and a ringlike connection mode. According to the reconfigurable single-phase digital variable-frequency generator, single-phase variable-frequency reconfiguration is carried out on the independent power supply generators through the single-phase inverters to change the output mode and achieve power capacity expansion so that the requirement for any power in application can be met.
Description
Technical field
The present invention relates to a kind of power supply, particularly relate to a kind of reconstitutable single-phase digital frequency conversion generator.
Background technology
In independently-powered generator application, often according to the required rated power for electric loading, select to provide the electromotor of this power.When required power supply load rating power is less, can use high-power or corresponding with its power electromotor is load supplying；When required power supply load rating power is bigger, then can only select the electromotor that output power is bigger is its power supply.But mostly during generator application, it may appear that cause electricity consumption general power to increase because load increases or application process exists the independent load that power is bigger, needing high-power power supply further；Or because load needs the situation of heterogeneous power supply.For these situations above-mentioned, the existing practice is to buy more powerful or change the electromotor that the output number of phases is identical with load, this considerably increases the acquisition cost of power supply unit.
Summary of the invention
It is an object of the invention to provide a kind of reconstitutable single-phase digital frequency conversion generator.
nullFor realizing the purpose of the present invention，Now describe its technical scheme in detail: a kind of reconstitutable single-phase digital frequency conversion generator，Including editing phase signal generator、Some single-phase converters and the independently-powered electromotor being connected with single-phase converter，Described single-phase converter includes the phase synchroniser being sequentially connected with、With phase-locked sine wave signal generator、Automatic growth control module、SPWM modulation module、Isolation drive module and H bridge output module，Described automatic growth control module includes voltage feedback module and current feedback module，Described voltage feedback module and current feedback module are connected with H bridge output module the most respectively，Described phase signal generator of editing is connected with the phase synchroniser of each single-phase converter，The outfan connected mode of the H bridge output module of some single-phase converters is series connection、In parallel、It is connected in star、Any one in being connected ringwise.
Further, some single-phase converters are uniformly divided into some groups of unit, and the outfan of the H bridge output module of the some single-phase converter in some groups of unit is sequentially connected in series, and the outfan of some groups of unit is in parallel successively or is connected in star or is connected ringwise.
Further, some single-phase converters are uniformly divided into some groups of unit, and the outfan of the H bridge output module of the some single-phase converter in some groups of unit is in parallel, and the outfan of some groups of unit is sequentially connected in series or is connected in star or is connected ringwise.
Further, some single-phase converters are uniformly divided into some groups of unit, and the outfan of the H bridge output module of the some single-phase converter in some groups of unit is that star is connected or annular connected, and the outfan of some groups of unit is the most in parallel.
The reconstitutable single-phase digital frequency conversion generator of the present invention, phase signal generator can be edited by some single-phase converters, the output signal of telecommunication making some independently-powered electromotors realizes phase-locked, fixed frequency, by norm, the superposition of voltage is completed after series connection, or after parallel connection, complete the superposition of electric current, or after in star or being connected ringwise, form heterogeneous electricity output, finally form single single-phase high voltage or the electromotor of High-current output or single polyphase alternator, single-phase for independently-powered electromotor frequency conversion is recombinated by it by single-phase converter, change output mode, realize power expanding, to meet the application of any power demand.
Accompanying drawing explanation
Fig. 1 is the functional block diagram of the first embodiment of the present invention；
Fig. 2 be the phase signal generator edited of the first embodiment of the present invention be sent to each single-phase converter phase synchroniser control signal of telecommunication graph of a relation in time；
Fig. 3 is the electrical signal voltage graph of a relation in time of the H bridge output module outfan of each single-phase converter of the first embodiment of the present invention；
Fig. 4 be the first embodiment of the present invention the series connection of some single-phase converter after the voltage graph of a relation in time of outfan output；
Fig. 5 is the functional block diagram of the second embodiment of the present invention；
Fig. 6 is the functional block diagram of the third embodiment of the present invention；
Fig. 7 be the phase signal generator edited of the third embodiment of the present invention be sent to each single-phase converter phase synchroniser control signal of telecommunication graph of a relation in time；
Fig. 8 be the H bridge output module outfan of the some single-phase converter of the third embodiment of the present invention be the electrical signal voltage graph of a relation in time of each outfan output after star is connected；
Fig. 9 is the functional block diagram of the 4th kind of embodiment of the present invention；
Wherein, t express time, u represents the signal of telecommunication, t0 represents that can edit phase signal generator sends control signal for the first time to the time of single-phase converter phase synchroniser, T represents the cycle of ac signal, the most corresponding some single-phase converter H bridge output module outfans of a, b that H bridge output module outfan exports, the most corresponding some single-phase converter H bridge output module outfans of A, B, C be star be connected, outfan after the restructuring that is connected ringwise.
Detailed description of the invention
nullFig. 1 shows the reconstitutable single-phase digital frequency conversion generator of the present invention，As shown in Figure 1，A kind of reconstitutable single-phase digital frequency conversion generator，Including editing phase signal generator 1、Some single-phase converters 2 and the independently-powered electromotor 3 being connected with single-phase converter 2，Described single-phase converter 2 includes the phase synchroniser 21 being sequentially connected with、With phase-locked sine wave signal generator 22、Automatic growth control module 23、SPWM modulation module 24、Isolation drive module 25 and H bridge output module 26，Described automatic growth control module 23 includes voltage feedback module 231 and current feedback module 232，Described voltage feedback module 231 and current feedback module 232 are connected with H bridge output module 26 respectively，Described phase signal generator 1 of editing is connected with the phase synchroniser 21 of each single-phase converter 2，The outfan of the H bridge output module 26 of some single-phase converters 2 is sequentially connected in series.
In the first embodiment of the present invention, phase signal generator 1 can be edited and play master control effect；Each independently-powered electromotor 3 is powered for corresponding single-phase converter 2；Voltage feedback module 231 and the current feedback module 232 of automatic growth control module 23 are fed back for the output of H bridge output module 26, according to this feedback, the sine wave signal produced with phase-locked sine wave signal generator 22 is adjusted by automatic growth control module 23, and the voltage and current finally making the outfan output signal of telecommunication of each H bridge output module 26 is identical；SPWM modulation module 24 triggers H bridge output module 26 by isolation drive module 25, makes 26 reversion reactions of H bridge output module, the output AC signal of telecommunication.During work, phase signal generator 1 can be edited and be unidirectionally controlled the phase synchroniser 21 of each single-phase converter 2, phase synchroniser 21 sends corresponding signal to phase-locked sine wave signal generator 22, the sine wave signal that sine wave signal generator 22 output making band phase-locked is correlated with, sine wave signal is sent to SPWM modulation module 24 after being regulated by automatic growth control module 23, SPWM modulation module 24 drives H bridge output module 26 by isolation drive module 25, make the outfan output corresponding phase of H bridge output module 26, frequency, the signal of telecommunication of voltage and current, and this signal of telecommunication of some single-phase converters 2 is connected, complete the superposition of voltage, to realize power expanding.
Specifically, as shown in Figure 2, can edit phase signal generator 1 and send the identical signal of telecommunication that controls to the phase synchroniser 21 of each single-phase converter 2 in the same time, the identical frequency of sine wave signal that the signal of telecommunication finally makes each single-phase converter sine wave signal generator 22 produce, the amplitude of controlling is the most identical；And same time sends, and to control the sine wave signal phase place that the signal of telecommunication makes sine wave signal generator 22 produce identical.And then final each single-phase converter sine wave signal generator 22 creates identical sine wave signal, so ensure that the electrical signal phase of each single-phase converter H bridge output module 26 outfan output is identical with frequency, even if the signal of telecommunication of each H bridge output module 26 outfan output realizes frequency phase-locked, fixed；The identical sine wave signal that each single-phase converter sine wave signal generator 22 produces is through automatic growth control module 23, under the effect of automatic growth control module voltage feedback module 231 and current feedback module 232 feedback regulation, transmission is made to be regulated to the sine wave signal amplitude of each single-phase converter SPWM modulation module 24, and then make to be driven each single-phase converter H bridge output module 26 sent out by SPWM modulation module 24 in the case of respective independently-powered electromotor 3 inputs different amplitude electrical signal, the amplitude signal of telecommunication can be realized reduce, while the H bridge output module 26 that the most final each SPWM modulation module 24 drives realizes inversion output, each ac signal amplitude of its outfan output is identical.So, the phase place of the signal of telecommunication of each H bridge output module 26 outfan output, frequency, voltage and current are the most identical, meet series-parallel condition, as it is shown on figure 3, the ac signal of each single-phase converter H bridge output module 26 outfan output is the most identical.
As shown in Figure 4, after the series connection of each phase synchroniser H bridge output module 26 outfan, the signal of telecommunication of output realizes the superposition of voltage, i.e. magnitude of voltage and increases.
Fig. 5 shows the second embodiment of the reconstitutable single-phase digital frequency conversion generator of the present invention.In the second embodiment of the present invention, the outfan of the H bridge output module 26 of some single-phase converters 2 is the most in parallel.Other structures are identical with the structure of embodiment 1.
In the second embodiment of the present invention, the ac signal of each single-phase converter H bridge output module 26 outfan output is the most identical, the phase place of ac signal of the most each H bridge output module 26 outfan output, frequency, amplitude are the most identical, implement process same as in Example 1.In the second embodiment of the present invention, the signal of telecommunication that the phase place of some single-phase converter H bridge output module 26 outfans output, frequency, voltage and current are identical is in parallel, completes the superposition of electric current, to realize power expanding.
Fig. 6 shows the third embodiment of the reconstitutable single-phase digital frequency conversion generator of the present invention.In the third embodiment of the present invention, the outfan of the H bridge output module 26 of some single-phase converters 2 is that star is connected.Other structures are identical with the structure of embodiment 1.
In the third embodiment of the present invention, the frequency of some single-phase converter H bridge output module 26 outfans output, the voltage and current signal of telecommunication identical, phase certain angle are that star is connected, form heterogeneous electricity output, change output mode, it is achieved power expanding.
Specifically, as shown in Figure 7, can edit phase signal generator 1 and send the identical signal of telecommunication that controls respectively to the phase synchroniser 21 of each single-phase converter 2 in some different time points, the identical frequency of sine wave signal that the signal of telecommunication makes each single-phase converter sine wave signal generator 22 produce, the amplitude of controlling is the most identical；And the quantity of some different time points is identical with the quantity of single-phase converter 2, the time difference between each adjacent time point is identical, and in addition to first time point, remaining time point is for editing phase signal generator 1 after first time point sends the control signal of telecommunication, the equal branch in the sine wave signal first cycle that corresponding single-phase converter sine wave signal generator 22 produces, this sine wave signal first cycle is divided equally by the quantity of single-phase converter 2, so, each sine wave signal generator 22 is made to produce sine wave signal phase certain angle.And then each sine wave signal generator 22 creates the sine wave signal that frequency is identical, phase place is different, to ensure that signal frequency that final each single-phase converter H bridge output module 26 outfan exports is identical and phase place is different；The sine wave signal that each single-phase converter sine wave signal generator 22 produces is through automatic growth control module 23, under the effect of automatic growth control module voltage feedback module 231 and current feedback module 232 feedback regulation, transmission is made to be regulated to the sine wave signal amplitude of each single-phase converter SPWM modulation module 24, and then make to be driven each single-phase converter H bridge output module 26 sent out by SPWM modulation module 24 in the case of respective independently-powered electromotor 3 inputs different amplitude electrical signal, the amplitude signal of telecommunication can be realized reduce, while the H bridge output module 26 that final each SPWM modulation module 24 drives realizes inversion, each ac signal amplitude of its outfan output is identical.So, the signal of telecommunication making each H bridge output module 26 outfan export meets the condition being connected in star, being connected ringwise, as shown in Figure 8, the frequency of alternating-current signals of each single-phase converter H bridge output module 26 outfan output, voltage and current are identical, phase place is different, forms heterogeneous electricity output after restructuring.
Fig. 9 shows the 4th kind of embodiment of the reconstitutable single-phase digital frequency conversion generator of the present invention.In the 4th kind of embodiment of the present invention, the outfan of the H bridge output module 26 of some single-phase converters 2 is connected ringwise.Other structures are identical with the structure of embodiment 1.
In the 4th kind of embodiment of the present invention, the signal of telecommunication of some single-phase converter H bridge output module 26 outfans output, its frequency, voltage and current are identical, phase certain angle, implement process same as in Example 3.After the signal of telecommunication of some single-phase converter H bridge output module 26 outfans output is connected ringwise, form heterogeneous electricity output, the heterogeneous electricity of output is different from the heterogeneous electricity only signal of telecommunication amplitude that embodiment 3 exports, and it is also to change output mode, finally realizes the dilatation of power.
The reconstitutable single-phase digital frequency conversion generator of the present invention, phase signal generator 1 can be edited by some single-phase converters 2, the output signal of telecommunication making some independently-powered electromotors 3 realizes phase-locked, fixed frequency, by norm, the superposition of voltage is completed after series connection, or after parallel connection, complete the superposition of electric current, or after in star or being connected ringwise, form heterogeneous electricity output, finally form single single-phase high voltage or the electromotor of High-current output or single polyphase alternator, the independently-powered single-phase frequency conversion of electromotor 3 is recombinated by it by single-phase converter 2, change output mode, realize power expanding, to meet the application of any power demand.
The reconstitutable single-phase digital frequency conversion generator of the present invention, some single-phase converters 2 can be uniformly divided into some groups of unit, the outfan of the H bridge output module 26 of the some single-phase converter 2 in some groups of unit can be sequentially connected in series, and the outfan of some groups of unit is in parallel successively or is connected in star or is connected ringwise；The outfan of the H bridge output module 26 of the some single-phase converter 2 in some groups of unit can be in parallel successively, and the outfan of some groups of unit is sequentially connected in series or is connected in star or is connected ringwise；The outfan of the H bridge output module 26 of the some single-phase converter 2 in some groups of unit can be connected in star or be connected ringwise, and the outfan of some groups of unit is the most in parallel.According to the needs of reality application, the combination that some single-phase converters 2 can complete series and parallel, star is connected or annular is connected.
Claims (4)
1. a reconstitutable single-phase digital frequency conversion generator, it is characterized in that: include editing phase signal generator, some single-phase converters and the independently-powered electromotor being connected with single-phase converter, described single-phase converter includes the phase synchroniser being sequentially connected with, with phase-locked sine wave signal generator, automatic growth control module, SPWM modulation module, isolation drive module and H bridge output module, described automatic growth control module includes voltage feedback module and current feedback module, described voltage feedback module and current feedback module are connected with H bridge output module the most respectively, described phase signal generator of editing is connected with the phase synchroniser of each single-phase converter, the outfan connected mode of the H bridge output module of some single-phase converters is series connection, in parallel, it is connected in star, any one in being connected ringwise.
Reconstitutable single-phase digital frequency conversion generator the most according to claim 1, it is characterized in that: some single-phase converters are uniformly divided into some groups of unit, the outfan of the H bridge output module of the some single-phase converter in some groups of unit is sequentially connected in series, and the outfan of some groups of unit is in parallel successively or is connected in star or is connected ringwise.
Reconstitutable single-phase digital frequency conversion generator the most according to claim 1, it is characterized in that: some single-phase converters are uniformly divided into some groups of unit, the outfan of the H bridge output module of the some single-phase converter in some groups of unit is in parallel, and the outfan of some groups of unit is sequentially connected in series or is connected in star or is connected ringwise.
Reconstitutable single-phase digital frequency conversion generator the most according to claim 1, it is characterized in that: some single-phase converters are uniformly divided into some groups of unit, the outfan of the H bridge output module of the some single-phase converter in some groups of unit is that star is connected or annular connected, and the outfan of some groups of unit is the most in parallel.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610398147.XA CN105826951A (en) | 2016-06-07 | 2016-06-07 | Reconfigurable single-phase digital variable-frequency generator |
| PCT/CN2017/086034 WO2017211195A1 (en) | 2016-06-07 | 2017-05-26 | Reconfigurable single-phase digital frequency-variable generator |
| CN201710398948.0A CN107086805B (en) | 2016-06-07 | 2017-05-31 | Recombinant single-phase digital variable frequency generator |
| ZA2018/08010A ZA201808010B (en) | 2016-06-07 | 2018-11-27 | Reconfigurable single-phase digital frequency-variable generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610398147.XA CN105826951A (en) | 2016-06-07 | 2016-06-07 | Reconfigurable single-phase digital variable-frequency generator |
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| CN105826951A true CN105826951A (en) | 2016-08-03 |
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| CN201610398147.XA Pending CN105826951A (en) | 2016-06-07 | 2016-06-07 | Reconfigurable single-phase digital variable-frequency generator |
| CN201710398948.0A Active CN107086805B (en) | 2016-06-07 | 2017-05-31 | Recombinant single-phase digital variable frequency generator |
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| CN201710398948.0A Active CN107086805B (en) | 2016-06-07 | 2017-05-31 | Recombinant single-phase digital variable frequency generator |
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| CN (2) | CN105826951A (en) |
| WO (1) | WO2017211195A1 (en) |
| ZA (1) | ZA201808010B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017211195A1 (en) * | 2016-06-07 | 2017-12-14 | 维尔纳（福建）电机有限公司 | Reconfigurable single-phase digital frequency-variable generator |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107979341B (en) * | 2017-11-10 | 2021-06-15 | 浙江众合科技股份有限公司 | Sine wave signal generating device based on inversion technology |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201312280Y (en) * | 2008-11-26 | 2009-09-16 | 何培祥 | Load balance device for digital generator set with a plurality of oil engines |
| CN101645646A (en) * | 2009-05-27 | 2010-02-10 | 荣信电力电子股份有限公司 | Method for realizing variable voltage level constant power output of converter |
| CN101807918B (en) * | 2010-04-15 | 2012-01-04 | 西安交通大学 | Synchronous coordinate system-based single phase locked loop and implementation method thereof |
| JP5580147B2 (en) * | 2010-08-31 | 2014-08-27 | オリジン電気株式会社 | Stabilization control method |
| CN103094909A (en) * | 2011-11-02 | 2013-05-08 | 山东锦华电力设备有限公司 | Control method of high precision single phase digital phase-locked loop based on static reactive generator |
| CN103078545B (en) * | 2013-01-15 | 2015-02-25 | 东华大学 | Control circuit for stand-alone /grid-connected dual-mode inverter and switching technology thereof |
| CN103414285B (en) * | 2013-08-30 | 2016-03-02 | 维尔纳（福建）电机有限公司 | A kind of generating, the dual-purpose machine of electric welding |
| CN203423579U (en) * | 2013-08-30 | 2014-02-05 | 维尔纳（福建）电机有限公司 | Electric generating and electric welding dual-purpose machine |
| CN103580498B (en) * | 2013-11-19 | 2016-03-23 | 苏州爱科博瑞电源技术有限责任公司 | High-power energy can the control method of feedback type grid stimulating device and employing thereof |
| JP2016082655A (en) * | 2014-10-14 | 2016-05-16 | 住友電気工業株式会社 | Phase-locked loop, power conversion device and phase synchronization method |
| CN205791571U (en) * | 2016-06-07 | 2016-12-07 | 维尔纳（福建）电机有限公司 | A kind of reconstitutable single-phase digital frequency conversion generator |
| CN105826951A (en) * | 2016-06-07 | 2016-08-03 | 维尔纳（福建）电机有限公司 | Reconfigurable single-phase digital variable-frequency generator |
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2016
- 2016-06-07 CN CN201610398147.XA patent/CN105826951A/en active Pending
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2017
- 2017-05-26 WO PCT/CN2017/086034 patent/WO2017211195A1/en active Application Filing
- 2017-05-31 CN CN201710398948.0A patent/CN107086805B/en active Active
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2017211195A1 (en) * | 2016-06-07 | 2017-12-14 | 维尔纳（福建）电机有限公司 | Reconfigurable single-phase digital frequency-variable generator |
Also Published As
| Publication number | Publication date |
|---|---|
| ZA201808010B (en) | 2019-06-26 |
| WO2017211195A1 (en) | 2017-12-14 |
| CN107086805A (en) | 2017-08-22 |
| CN107086805B (en) | 2024-03-29 |
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Application publication date: 20160803 |