CN106411111B - Method for equalizing parallel output voltage of power supply and power supply device - Google Patents
Method for equalizing parallel output voltage of power supply and power supply device Download PDFInfo
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- CN106411111B CN106411111B CN201611040586.XA CN201611040586A CN106411111B CN 106411111 B CN106411111 B CN 106411111B CN 201611040586 A CN201611040586 A CN 201611040586A CN 106411111 B CN106411111 B CN 106411111B
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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
- H02M1/00—Details of apparatus for conversion
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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
- H02M1/00—Details of apparatus for conversion
- H02M1/0083—Converters characterised by their input or output configuration
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- Dc-Dc Converters (AREA)
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Abstract
The embodiment of the invention provides a method for balancing output voltages of parallel power supplies and a power supply device, wherein the method comprises the following steps: s11, isolating all the power supply units connected in parallel from each other; s12, determining whether the output voltage needs to be adjusted according to the current output voltages of all the power supply monomers connected in parallel, if so, jumping to S13, and if not, jumping to S17; s13, setting the power supply monomer needing to adjust the output voltage as the adjusting object; s14, making the regulated object carry out constant power output; s15, increasing the output current of the regulated object according to a preset rule to reduce the current output voltage of the regulated object; s16, determining whether the output voltage needs to be adjusted again according to the current output voltages of all the power supply units connected in parallel, if not, recovering the parallel connection of all the power supply units and carrying out S17, if so, jumping back to S13; and S17, outputting according to the current output voltage. The embodiment of the invention enables the power supply units to be directly connected in parallel for use, meets different power requirements of different occasions, and improves the stability of the power supply device.
Description
Technical Field
The invention relates to the technical field of power supplies, in particular to a method for balancing parallel output voltages of power supplies and a power supply device.
Background
In the traditional outdoor power supply design, a constant voltage power supply group is generally adopted to supply power to electric equipment, in order to meet the power supply requirement of a load, the constant voltage power supply group is generally composed of a plurality of series-connected constant voltage power supplies, and as the service life and the damage condition of each constant voltage power supply in the constant voltage power supply group are different and the output voltage of each constant voltage power supply is different, the power supply group can not meet any power requirement of a user; the traditional constant voltage power supply cannot directly carry out parallel operation due to different output voltages, and is easy to cause backward flow to the power supply with low output voltage and damage the power supply; or a balancing device is adopted to balance the output voltage of each power supply, but the number of power supplies which can be connected in parallel is limited, and the balancing device brings extra expense to increase the cost.
Disclosure of Invention
The technical problem to be solved by the embodiments of the present invention is to provide a method for balancing parallel output voltages of power supplies, so that the power supplies can be directly connected in parallel for use.
A further technical problem to be solved in the embodiments of the present invention is to provide a power supply device for equalizing parallel output voltages of power supplies, so that the power supplies can be directly connected in parallel for use.
In order to solve the above technical problems, embodiments of the present invention provide the following technical solutions: a method of equalizing parallel power supply output voltages, comprising:
step S11, isolating all the power supply units connected in parallel from each other;
step S12, determining whether the output voltage needs to be adjusted according to the current output voltages of all the power supply units connected in parallel, if so, jumping to step S13, and if not, jumping to step S17;
step S13, setting the power supply monomer needing to adjust the output voltage as the adjusting object;
step S14, making the adjustment object perform constant power output;
step S15, increasing the output current of the regulated object according to a preset rule to reduce the current output voltage of the regulated object;
step S16, determining whether the output voltage needs to be adjusted again according to the current output voltages of all the power supply units connected in parallel, if not, performing step S17, and if so, jumping back to step S13 to perform steps S13-S16 in a circulating manner;
and step S17, restoring the parallel connection of all the power supply monomers and outputting according to the current output voltage.
Further, the determining whether the output voltage needs to be adjusted according to the current output voltages of all the power cells connected in parallel in steps S12 and S16 specifically includes:
step S121, detecting the current output voltage of each power supply unit;
and step S122, judging whether the distribution interval of the current output voltage of each power supply unit is within a preset standard interval range, if so, determining that the voltage regulation is not needed, and if not, determining that the voltage regulation is needed.
Further, the step S13 of determining the power supply unit requiring to adjust the output voltage as the adjustment object specifically includes:
s131, comparing the output voltage of each power supply unit;
and S132, determining the power supply single body with the highest output voltage as the regulating object.
Further, step S15 specifically includes:
step S151, determining the adjustment quantity of the load of the adjustment object according to a preset adjustment rule;
and S152, adjusting the load according to the adjusting amount to increase the output current of the adjusting object.
In another aspect, the present invention further provides a power supply apparatus for equalizing parallel output voltages of power supplies, including:
the isolation module is used for isolating all the power supply units connected in parallel from each other;
the analysis module is used for determining whether the output voltage needs to be adjusted according to the current output voltages of all the power supply monomers connected in parallel;
the system comprises a specifying module, a regulating module and a control module, wherein the specifying module is used for setting a power supply monomer needing to regulate output voltage as a regulating object;
the control module is used for enabling the regulating object to carry out constant power output;
the regulating module is used for increasing the output current of the regulating object according to a preset rule so as to reduce the current output voltage of the regulating object;
and the output module is used for recovering the parallel connection of all the power supply monomers and outputting according to the current output voltage.
Further, the analysis module includes:
the detection unit is used for detecting the current output voltage of each power supply unit;
and the judging unit is used for judging whether the distribution interval of the current output voltage of each power supply unit is within a preset standard interval range.
Further, the specifying module includes:
the comparison unit is used for comparing the output voltage of each power supply unit;
and the specifying unit is used for determining one power supply unit with the highest output voltage in all the power supply units as an adjusting object.
Further, the adjustment module includes:
the calculation unit is used for determining the adjustment amount of the load of the adjustment object according to a preset adjustment rule;
and the adjusting unit is used for adjusting the load according to the adjusting amount so as to increase the output current of the adjusting object.
Further, the isolation module comprises a combination of one or more of the following: a diode, a triode, a field effect transistor, or an integrated circuit.
After the technical scheme is adopted, the embodiment of the invention at least has the following beneficial effects: the embodiment of the invention provides a method capable of balancing the output voltages of all parallel power supply monomers and a power supply device thereof, and the output voltages are adjusted through output current feedback so that the output voltages of all the power supply monomers can meet the technical requirements of parallel use of power supplies, so that the power supply monomers can be directly used in parallel, different power requirements of different use occasions can be met, and the stability and the use efficiency of a power supply system are effectively improved.
Drawings
Fig. 1 is a schematic flow chart of an embodiment of a method for equalizing parallel output voltages of power supplies according to the present invention.
Fig. 2 is a flowchart illustrating the step S12 of the method for equalizing parallel output voltages of power supplies according to an embodiment of the present invention.
Fig. 3 is a flowchart illustrating a specific process of step S15 in an embodiment of the method for equalizing parallel output voltages of power supplies according to the present invention.
Fig. 4 is a schematic structural diagram of an embodiment of a power supply apparatus for equalizing parallel output voltages of power supplies according to the present invention.
Fig. 5 is a schematic structural diagram of an analysis module in an embodiment of the power supply apparatus for equalizing parallel output voltages of power supplies according to the present invention.
Fig. 6 is a schematic diagram of a specific structure of a designated module in an embodiment of the power supply apparatus for equalizing parallel output voltages of power supplies according to the present invention.
Fig. 7 is a schematic structural diagram of a regulating module in an embodiment of the power supply apparatus for equalizing parallel output voltages of power supplies according to the present invention.
Detailed Description
The present application will now be described in further detail with reference to the accompanying drawings and specific examples. It should be understood that the following illustrative embodiments and description are only intended to explain the present invention, and are not intended to limit the present invention, and features of the embodiments and examples in the present application may be combined with each other without conflict.
As shown in fig. 1, an embodiment of the present invention provides a method for equalizing output voltages of parallel power supplies, including:
step S11, isolating all the power supply units connected in parallel from each other;
step S12, determining whether the output voltage needs to be adjusted according to the current output voltages of all the power supply units connected in parallel, if so, jumping to step S13, and if not, jumping to step S17;
step S13, setting the power supply monomer needing to adjust the output voltage as the adjusting object;
step S14, making the adjustment object perform constant power output;
step S15, increasing the output current of the regulated object according to a preset rule to reduce the current output voltage of the regulated object;
step S16, determining whether the output voltage needs to be adjusted again according to the current output voltages of all the power supply units connected in parallel, if not, performing step S17, and if so, jumping back to step S13 to perform steps S13-S16 in a circulating manner;
and step S17, restoring the parallel connection of all the power supply monomers and outputting according to the current output voltage.
The embodiment of the invention provides a method capable of balancing the output voltages of all parallel power supply monomers and a power supply device thereof, and the output voltages are adjusted through output current feedback so that the output voltages of all the power supply monomers can meet the technical requirements of parallel use of power supplies, so that the power supply monomers can be directly used in parallel, different power requirements of different use occasions can be met, and the stability and the use efficiency of a power supply system are effectively improved.
As shown in fig. 2, in an alternative embodiment, the determining whether the output voltage needs to be adjusted according to the current output voltages of all the power cells connected in parallel in steps S12 and S16 specifically includes:
step S121, detecting the current output voltage of each power supply unit;
and step S122, judging whether the distribution interval of the current output voltage of each power supply unit is within a preset standard interval range, if so, determining that the voltage regulation is not needed, and if not, determining that the voltage regulation is needed.
In this embodiment, when the distribution interval of the current output voltage of each power supply unit is detected to be within the predetermined standard interval range, the subsequent adjustment step can be directly skipped, power output is directly performed, and adjustment efficiency is effectively improved.
In an optional embodiment, the determining, in step S13, the power supply unit requiring to adjust the output voltage as an adjustment object specifically includes:
s131, comparing the output voltage of each power supply unit;
and S132, determining the power supply single body with the highest output voltage as the regulating object.
In this embodiment, setting the single power supply with the highest output voltage as the adjustment target facilitates the subsequent adjustment step.
As shown in fig. 3, in an alternative embodiment, step S15 specifically includes:
step S151, determining the adjustment quantity of the load of the adjustment object according to a preset adjustment rule;
and S152, adjusting the load according to the adjusting amount to increase the output current of the adjusting object.
In this embodiment, the adjustment amount of the load of the adjustment object is determined by calculation, and then the load is adjusted according to the adjustment amount, so as to increase the output current of the adjustment object.
As shown in fig. 4, in another aspect, an embodiment of the present invention further provides a power supply apparatus 1 for equalizing parallel output voltages of power supplies, including:
the isolation module 11 is used for isolating all the power supply units connected in parallel from each other;
the analysis module 12 is configured to determine whether the output voltage needs to be adjusted according to the current output voltages of all the power supply units connected in parallel;
the specifying module 13 is configured to specify a power supply unit requiring output voltage adjustment as an adjustment target;
a control module 14, configured to enable the adjustment object to perform constant power output;
the adjusting module 15 is used for increasing the output current of the adjusting object according to a preset rule to reduce the current output voltage of the adjusting object;
and the output module 17 is used for recovering the parallel connection of all the power supply monomers and outputting according to the current output voltage.
In the embodiment of the invention, whether the output voltage needs to be adjusted is determined by the analysis module 12, if so, the output voltage of the adjusted object can be adjusted by matching the control module 14 and the adjustment module 15 after the adjusted object is determined by the designation module 13, and the analysis module 12 performs analysis and judgment again after the adjustment is completed so as to determine whether the adjustment process needs to be repeated until the output voltage of each adjusted power supply unit meets the requirement, so that the power supply units can be directly used in parallel, different power requirements of different use occasions can be met, and the stability and the use efficiency of the power supply system are effectively improved.
The isolation module 11 is mainly used for preventing all the power supply units connected in parallel from flowing backward to become a load and further being damaged due to the fact that the current voltage values of the power supply units are not the highest. In particular implementations, the isolation module 11 may include a combination of one or more of the following types: a diode, a triode, a field effect transistor, or an integrated circuit. When it is determined that the output voltage does not need to be adjusted after being analyzed by the analysis module 12, the output module 17 may release the state of the isolation module 11, so as to recover the parallel connection of all the power supply units, that is, output according to the current output voltage, and at this time, the output voltages of the power supply units are equal or within an acceptable deviation range, so that the power supply units are not substantially damaged.
As shown in fig. 5, in an alternative embodiment, the analysis module 12 includes:
a detection unit 121 detecting the current output voltage of each power supply unit;
the determining unit 122 determines whether the distribution interval of the current output voltage of each power supply unit is within a predetermined standard interval range.
In this embodiment, when the distribution interval of the current output voltage of each power supply unit is detected to be within the predetermined standard interval range, the subsequent adjustment step can be directly skipped, power output is directly performed, and adjustment efficiency is effectively improved.
As shown in fig. 6, in an alternative embodiment, the specifying module 13 includes:
a comparison unit 131 for comparing output voltages of the power supply units;
the specifying unit 132 is configured to specify, as an adjustment target, one of the power supply cells having the highest output voltage.
In this embodiment, setting the single power supply with the highest output voltage as the adjustment target facilitates the subsequent adjustment step.
As shown in fig. 7, in an alternative embodiment, the adjusting module 15 includes:
a calculation unit 151 that determines an adjustment amount of the load of the adjustment target according to a preset adjustment rule;
and an adjusting unit 152 that adjusts the load according to the adjustment amount to increase the output current of the adjustment target.
In this embodiment, the calculation unit 151 calculates and determines the adjustment amount of the load of the adjustment object, and then the adjustment unit 152 adjusts the load according to the adjustment amount, so as to increase the output current of the adjustment object.
The method for equalizing the parallel output voltage of the power supply and the power supply device can be suitable for the following aspects including but not limited to:
1. outdoor decoration, brightening or centralized lighting engineering;
2. a stage lighting system;
3. the building site concentrates the illumination power supply.
The functions described in the embodiments of the present invention may be stored in a storage medium readable by a computing device if they are implemented in the form of software functional modules or units and sold or used as independent products. Based on such understanding, part of the contribution of the embodiments of the present invention to the prior art or part of the technical solution may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computing device (which may be a personal computer, a server, a mobile computing device, a network device, or the like) to execute all or part of the steps of the method described in the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes. The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A method of equalizing parallel output voltages of power supplies, comprising:
step S11, isolating all the power supply units connected in parallel from each other;
step S12, determining whether the output voltage needs to be adjusted according to the current output voltage of each power supply unit which is isolated from each other, if so, jumping to step S13, and if not, jumping to step S17;
step S13, setting the power supply monomer needing to adjust the output voltage as the adjusting object;
step S14, making the adjustment object perform constant power output;
step S15, determining the adjustment quantity of the load of the adjustment object according to a preset adjustment rule, and adjusting the load according to the adjustment quantity to increase the output current of the adjustment object and reduce the current output voltage of the adjustment object;
step S16, determining whether the output voltage needs to be adjusted again according to the current output voltages of all the power supply units connected in parallel, if not, performing step S17, and if so, jumping back to step S13 to perform steps S13-S16 in a circulating manner;
and step S17, restoring the parallel connection of all the power supply monomers and outputting according to the current output voltage.
2. The method according to claim 1, wherein the determining whether the output voltage needs to be adjusted according to the current output voltages of all the power cells connected in parallel in steps S12 and S16 specifically comprises:
step S121, detecting the current output voltage of each power supply unit;
and step S122, judging whether the distribution interval of the current output voltage of each power supply unit is within a preset standard interval range, if so, determining that the voltage regulation is not needed, and if not, determining that the voltage regulation is needed.
3. The method for equalizing parallel output voltages of power supplies according to claim 1 or 2, wherein the step S13 of determining the power supply unit requiring output voltage adjustment as the adjustment object specifically comprises:
s131, comparing the output voltage of each power supply unit;
and S132, determining the power supply single body with the highest output voltage as the regulating object.
4. A power supply apparatus for equalizing parallel output voltages of power supplies, comprising:
the isolation module is used for isolating all the power supply units connected in parallel from each other;
the analysis module is used for determining whether the output voltage needs to be adjusted according to the current output voltage of each power supply monomer which is isolated from each other;
the system comprises a specifying module, a regulating module and a control module, wherein the specifying module is used for setting a power supply monomer needing to regulate output voltage as a regulating object;
the control module is used for enabling the regulating object to carry out constant power output;
the regulating module is used for increasing the output current of the regulating object according to a preset rule to reduce the current output voltage of the regulating object, and comprises: the calculation unit is used for determining the adjustment amount of the load of the adjustment object according to a preset adjustment rule; an adjusting unit for adjusting the load according to the adjustment amount to increase an output current of an adjustment object;
and the output module is used for recovering the parallel connection of all the power supply monomers and outputting according to the current output voltage.
5. The power supply apparatus for equalizing parallel output voltages of power supplies of claim 4, wherein said analyzing module comprises:
the detection unit is used for detecting the current output voltage of each power supply unit;
and the judging unit is used for judging whether the distribution interval of the current output voltage of each power supply unit is within a preset standard interval range.
6. The power supply apparatus for equalizing parallel output voltages of power supplies according to claim 4 or 5, wherein the specifying module comprises:
the comparison unit is used for comparing the output voltage of each power supply unit;
and the specifying unit is used for determining one power supply unit with the highest output voltage in all the power supply units as an adjusting object.
7. The power supply apparatus for equalizing parallel output voltages of power supplies of claim 5, wherein said isolation module comprises a combination of one or more of: a diode, a triode, a field effect transistor, or an integrated circuit.
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5319536A (en) * | 1991-12-17 | 1994-06-07 | International Business Machines Corporation | Power system for parallel operation of AC/DC convertrs |
US5513094A (en) * | 1993-11-30 | 1996-04-30 | Crown International, Inc. | Switch-mode power supply for bridged linear amplifier |
CN1040823C (en) * | 1994-07-21 | 1998-11-18 | 三星电机株式会社 | Switch mode power supply with control of output supply voltage and overcurrent |
CN201234205Y (en) * | 2008-07-03 | 2009-05-06 | 中兴通讯股份有限公司 | Parallel current equalizing control circuit, electric power module and electric power system constituted thereby |
CN102324838B (en) * | 2011-04-25 | 2014-07-30 | 福建星网锐捷网络有限公司 | Current-sharing power supply voltage adjusting method and device as well as network equipment |
-
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- 2016-11-11 CN CN201611040586.XA patent/CN106411111B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5319536A (en) * | 1991-12-17 | 1994-06-07 | International Business Machines Corporation | Power system for parallel operation of AC/DC convertrs |
US5513094A (en) * | 1993-11-30 | 1996-04-30 | Crown International, Inc. | Switch-mode power supply for bridged linear amplifier |
CN1040823C (en) * | 1994-07-21 | 1998-11-18 | 三星电机株式会社 | Switch mode power supply with control of output supply voltage and overcurrent |
CN201234205Y (en) * | 2008-07-03 | 2009-05-06 | 中兴通讯股份有限公司 | Parallel current equalizing control circuit, electric power module and electric power system constituted thereby |
CN102324838B (en) * | 2011-04-25 | 2014-07-30 | 福建星网锐捷网络有限公司 | Current-sharing power supply voltage adjusting method and device as well as network equipment |
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