CN101917008B - Method and device for improving specific proportion load efficiency of power source - Google Patents
Method and device for improving specific proportion load efficiency of power source Download PDFInfo
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- CN101917008B CN101917008B CN201010240569.7A CN201010240569A CN101917008B CN 101917008 B CN101917008 B CN 101917008B CN 201010240569 A CN201010240569 A CN 201010240569A CN 101917008 B CN101917008 B CN 101917008B
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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
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/217—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M7/23—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only arranged for operation in parallel
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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
- H02M1/0048—Circuits or arrangements for reducing losses
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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
- H02M1/0067—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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- 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
- H02M7/487—Neutral point clamped inverters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention relates to a method and a device for improving power source specific proportion load efficiency of power source. The method comprises the following steps: detecting power source load; selecting at least one approach power circuit from preset power circuit to regulate power for the input power according to the load and the preset regulations; and outputting power after being regulated to the load. In the invention, corresponding quantitative sub power circuits are switched and selected in the preset power circuit to regulate the input power according to the actually detected load, so as to provide the needed power for the load, thus reducing power source power consumption, improving power source output efficiency, further decreasing the total ownership cost of users, additionally leading the load to respond rapidly in no need of the time of soft start and control circuit self-checking and the like, realizing switch among each sub power circuit according to the preset return difference value, and simultaneously reducing power source system risk and load power failure risk brought by frequent switch of the sub power circuits.
Description
Technical field
The present invention relates to power technique fields, relate in particular to a kind of method and device that improves specific proportion load efficiency of power source.
Background technology
At present, energy shortage is whole society's question of common concern, how to save existingly such as the non-renewable energy in a short time such as coal, oil, natural gas, and how Looking For Substitutions Of Oil and the utilance that improves the existing energy become urgent problem to be solved.
The delivery efficiency of existing power electronic equipment and power-supply device (comprising DC power supply device and AC power equipment etc.) uprises along with the increase of load conventionally, in the situation that power output is nominal load (100% load), most effective, but for specific user, in order to back up or use the objects such as safety, the required power output of load is generally no more than 50%.
Therefore, concerning user, the efficiency of nominal load does not have practical significance, and what be of practical significance is the efficiency under user's common load.Such as: power supply nominal load efficiency is 94%, and client's common load rate is 40%, and power supply actual loading efficiency is 90%, and fewer 4% than power supply nominal load efficiency, the in the situation that of large power, electrically origin system, 4% efficiency variance means the huge waste of the energy.
For the problems referred to above, in prior art, under multi-power module (system) mode in parallel, conventionally the method for taking for little load is: allow the dormancy of some of them module, but there is following defect in this method: in the situation that load increases suddenly, the module of dormancy has very long start-up time, exists the risk of power down.
Prior art also adopts a kind of method of Hot Spare, control the output of some modules, it is not exported, and only allow, wherein just can provide the module of load energy to have output, although this heat backup method SRT is very fast, but because power device also exists and consumes unloaded in the situation that, so this kind of method is to the whole efficiency of raising power-supply system not obvious.
Summary of the invention
Main purpose of the present invention is to provide a kind of method and device that improves specific proportion load efficiency of power source, is intended to improve the power source loads efficiency under the load of power supply special ratios and avoids load power down risk.
The present invention proposes a kind of method that improves specific proportion load efficiency of power source, comprises the following steps:
Detect power-carrying capacity;
According to described load capacity and pre-defined rule, in preset power circuit, choose at least one way power circuit input power is carried out to power adjustments;
Power after regulating to load output.
Preferably, before the step of described detection power-carrying capacity, also comprise:
Described preset power circuit is set, and described preset power circuit comprises two-way or the above sub-power circuit parallel with one another of two-way, and the governor circuit in parallel with described sub-power circuit.
Preferably, describedly according to load capacity and pre-defined rule, in preset power circuit, choose the step that at least one way power circuit carries out power adjustments to described input power and specifically comprise:
Judge whether described load capacity is greater than predetermined load value;
When load capacity is greater than predetermined load value, choose and connect all sub-power circuits in preset power circuit; The parallel circuits consisting of all sub-power circuit of choosing carries out power adjustments to input power;
When load capacity is less than predetermined load value, according to pre-defined rule, choose the sub-power circuit of predetermined quantity in described preset power circuit; The circuit that cuts off its minor power circuit in described preset power circuit connects; The parallel circuits that sub-power circuit by predetermined quantity in the described preset power circuit of choosing forms carries out power adjustments to described input power.
Preferably, the step that the described parallel circuits consisting of the sub-power circuit of predetermined quantity in the preset power circuit of choosing carries out power adjustments to described input power also comprises afterwards:
When described load capacity is greater than predetermined load value, according to described pre-defined rule, connect described its minor power circuit more than Huo Yi road, described preset power circuit Zhong Yi road;
The parallel circuits that sub-power circuit by all connections in described preset power circuit forms carries out power adjustments to described input power.
Preferably, after described detection power-carrying capacity, also comprise: detect power supply input current and/or voltage.
Preferably, before the step of described power after load output adjusting, also comprise: detect electric power outputting current and/or voltage.
The present invention also provides a kind of device that improves specific proportion load efficiency of power source, comprising:
Detection module, for detection of power-carrying capacity;
Power conditioning module for according to described load capacity and pre-defined rule, is chosen at least one way power circuit input power is carried out to power adjustments in preset power circuit;
Output module, for the power after regulating to load output.
Preferably, described device also comprises:
Module is set, and for described preset power circuit is set, described preset power circuit comprises two-way or the above sub-power circuit parallel with one another of two-way, and the governor circuit in parallel with described sub-power circuit.
Preferably, described power conditioning module specifically comprises:
Judging unit, for judging whether described load capacity is greater than predetermined load value;
Control unit, when being greater than predetermined load value when load capacity, chooses and connects all sub-power circuits in preset power circuit; And when described load capacity is less than predetermined load value, according to described pre-defined rule, choose the sub-power circuit of predetermined quantity in described preset power circuit;
Cutting unit, for when described load capacity is less than predetermined load value, the circuit that cuts off its minor power circuit in described preset power circuit connects;
Regulon, for when described load capacity is greater than predetermined load value, the parallel circuits consisting of all sub-power circuit of choosing carries out power adjustments to input power; And when described load capacity is less than predetermined load value, the parallel circuits that the sub-power circuit by predetermined quantity in the described preset power circuit of choosing forms carries out power adjustments to described input power.
Preferably, described control unit, also for when described load capacity is greater than predetermined load value, connects described its minor power circuit more than Huo Yi road, described preset power circuit Zhong Yi road according to described pre-defined rule;
Described regulon, the parallel circuits also forming for the sub-power circuit by all connections of described preset power circuit carries out power adjustments to described input power.
Preferably, described detection module, also for detection of the source current of input power and/or source current and/or the voltage of voltage and detection power output.
Preferably, described sub-power circuit comprises: pfc circuit and inverter circuit.
The present invention improves method and the device of specific proportion load efficiency of power source, by setting, be used for regulating the preset power circuit of output power of power supply, and according to the actual load capacity detecting, in preset power circuit, switch the sub-power circuit of choosing respective numbers input power is regulated, thereby for load provides its power demand, reduced source power loss, improved power supply delivery efficiency, further reduced user's total cost of ownership (Total Cost of Ownership, TCO); In addition, do not need the self check equal time of slow startup and control circuit, make load response fast, also can between each sub-power circuit, switch according to default return difference value, reduced frequent power-supply system risk and the load power down risk of bringing of switching of sub-power circuit simultaneously.
Accompanying drawing explanation
Fig. 1 is the method one embodiment schematic flow sheet that the present invention improves specific proportion load efficiency of power source;
Fig. 2 is that the present invention improves in method one embodiment of specific proportion load efficiency of power source power source loads efficiency curve comparison diagram in power source loads efficiency and prior art;
Fig. 3 is that the present invention improves in method one embodiment of specific proportion load efficiency of power source according to load capacity and pre-defined rule, chooses at least one way power circuit and input power is carried out to the idiographic flow schematic diagram of power adjustments in preset power circuit;
Fig. 4 is another embodiment schematic flow sheet of method that the present invention improves specific proportion load efficiency of power source;
Fig. 5 is that the present invention improves in another embodiment of method of specific proportion load efficiency of power source according to load capacity and pre-defined rule, chooses at least one way power circuit and input power is carried out to the idiographic flow schematic diagram of power adjustments in preset power circuit;
Fig. 6 is the device one example structure schematic diagram that the present invention improves specific proportion load efficiency of power source;
Fig. 7 is that the present invention improves preset power circuit one example structure schematic diagram in device one embodiment of specific proportion load efficiency of power source;
Fig. 8 is that the present invention improves power conditioning module structural representation in device one embodiment of specific proportion load efficiency of power source;
Fig. 9 is another example structure schematic diagram of device that the present invention improves specific proportion load efficiency of power source.
In order to make technical scheme of the present invention clearer, clear, below in conjunction with accompanying drawing, be described in further detail.
Embodiment
Solution for embodiment of the invention is mainly that the user's actual negative carrying capacity by detecting is chosen the sub-power circuit of respective numbers in preset power circuit and provided its power demand to load, to avoid in prior art in power-supply system power circuit, load no matter, the unnecessary loss of power that all power branch roads in parallel are all worked simultaneously and brought, improves power-supply system load efficiency.
As shown in Figure 1, one embodiment of the invention proposes a kind of method that improves specific proportion load efficiency of power source, comprising:
Step S101, detects power-carrying capacity;
Step S102 according to load capacity and pre-defined rule, chooses at least one way power circuit input power is carried out to power adjustments in preset power circuit;
Step S103, the power after regulating to load output.
Above-mentioned steps S101 is to step S103, in order to improve power-supply device under user's common load such as UPS (uninterruptible power system, uninterruptible power system) delivery efficiency, employing chooses according to the load capacity of user's reality the method that different power conditioning circuitries regulates input power, to the actual required power of load output, the running environment of the present embodiment method mainly comprises: the power circuit to load power output in power-supply device is the preset power circuit in the present embodiment, in prior art, conventionally adopt the sub-power circuit of the two-way that allows in power circuit or multi-channel parallel work simultaneously and provide power demand for load, for small scale, load is the load that load capacity is little to this kind of method, can cause the reduction greatly of power-efficient.
In the present embodiment, preset power circuit comprises two-way or the above sub-power circuit parallel with one another of two-way, and the governor circuit in parallel with sub-power circuit.When preset power circuit receives the input power of power supply, first detect the load capacity of power supply, according to the size of load capacity and pre-defined rule, select preset power circuit Zhong mono-road or two-way or the sub-power circuit connection of multichannel, wherein, pre-defined rule be predetermined quantity in load capacity and preset power circuit sub-power circuit between corresponding relation, according to the actual size of load capacity, make the sub-power circuit work of the predetermined quantity in preset power circuit, and remaining sub-power circuit is disconnected, thereby reach the object that improves power source loads efficiency.
The preset power circuit of take below comprises that two way power circuits are elaborated as example:
Preset power circuit comprises two way power circuits, and each way power circuit comprises pfc circuit and inverter circuit.Two way power circuits can provide separately respectively 50% bearing power, the mode that this two ways power circuit is realized equal load can adopt naturally sharing current or respectively the various ways such as controlled carry out, the present embodiment can also set in advance a predetermined load value, such as being 50%, when to load input power, first detect load capacity and whether be greater than or less than the predetermined load value setting in advance, if active user's load ratio is 40% load, be that load capacity is 40%, be less than predetermined load value, only need a way power circuit in preset power circuit to provide power for load, being about to a way power circuit in preset power circuit disconnects, and only allow a wherein way power circuit connect, power supply input power is carried out to power adjustments, for load provides power demand, reduce power-efficient loss.
Wherein, a way power circuit of disconnection is in " cold standby " state, and as shown in Figure 2, according to preset power circuit efficiency curve, the efficiency during load of power-supply system 0～50% has improved.
Now, if load capacity detected, be greater than predetermined load value, such as being 60%, the closed sub-power circuit disconnecting is worked two way power circuits in preset power circuit simultaneously, because shutoff and the closing time of electronic devices and components in circuit are quite of short duration, and control circuit, in " Hot Spare " state, does not need self check, preset power circuit does not need other slow startup etc. yet, the time that the sub-power circuit before disconnecting is resumed work is quite of short duration, makes out-put supply be unlikely to be interrupted.
When load capacity is less than predetermined load value and only needs way power circuit when work in preset power circuit, can be according to system operation time, when this way power circuit is after the work scheduled time, this way power circuit is disconnected, and circuit is switched to another way power circuit, by another way power circuit, worked, avoid thus working long hours or not working for a long time problems such as causing the system failure because of a way power circuit.
It should be noted that, according to the load capacity detecting, the sub-power circuit in preset power circuit carried out to connecting and disconnecting and switch between different sub-power circuits, by the control circuit in preset power circuit, complete, simultaneously, in order not make the frequent switching between two way power circuits, can be predetermined load value one return difference value is set, and corresponding return difference circuit is set in preset power circuit, to avoid because of the frequent power-supply system risk of bringing of switching.
As shown in Figure 3, in the present embodiment, step S102 specifically comprises:
Step S1021, judges whether load capacity is greater than predetermined load value; If so, enter step S1022, otherwise, step S1024 entered;
Step S1022, chooses and connects all sub-power circuits in preset power circuit;
Step S1023, the parallel circuits consisting of all sub-power circuit of choosing carries out power adjustments to input power;
Step S1024, chooses the sub-power circuit of predetermined quantity in preset power circuit according to pre-defined rule;
Step S1025, the circuit that cuts off its minor power circuit in described preset power circuit connects;
Step S1026, the parallel circuits that the sub-power circuit by predetermined quantity in the preset power circuit of choosing forms carries out power adjustments to input power.
In the present embodiment, in above-mentioned steps, pre-defined rule refers to according to load capacity and chooses preset power circuit Zhong mono-tunnel, the strategy of two roads or the sub-power circuit of multichannel, such as, in preset power circuit, include altogether five way power circuits parallel with one another, according to load capacity being detected, only need wherein three way power circuits to provide power for load, according to load capacity, choose three way power circuits in preset power circuit, if load capacity is greater than predetermined load value, need all sub-power circuits in preset power circuit all to work and could provide its power demand for load, choose all sub-power circuits in preset power circuit, the parallel circuits consisting of all sub-power circuit of choosing carries out power adjustments to input power, thereby for load provides its power demand.
The present embodiment switches the sub-power circuit of choosing respective numbers input power is regulated in preset power circuit according to the actual load capacity detecting, thereby for load provides its power demand, reduced source power loss, improve power supply delivery efficiency, further reduced user's total cost of ownership; When user's load capacity in predetermined load value such as 50% when following, idle sub-power circuit is as fallback circuit, its all power devices are not all worked, in " cold standby " state, the conduction loss of these power devices and switching loss are zero, thereby reduced the loss of power-supply system, improved power source loads efficiency.In addition, preset power circuit does not need the self check equal time of slow startup and control circuit, make load response fast, also can between each sub-power circuit, switch according to default return difference value, reduced frequent power-supply system risk and the load power down risk of bringing of switching of sub-power circuit simultaneously.
As shown in Figure 4, another embodiment of the present invention proposes a kind of method that improves specific proportion load efficiency of power source, on the basis of above-described embodiment, wherein, before step S101, also comprises:
Step S100, arranges preset power circuit;
In the present embodiment, preset power circuit comprises two-way or the above sub-power circuit parallel with one another of two-way, and the governor circuit in parallel with sub-power circuit.Can be according to power-supply system bearing capacity and the corresponding preset power circuit of load actual conditions configuration.
Before step S101, also comprise:
Step S1011, detects power supply input current and/or voltage.
Before step S103, also comprise:
Step S1031, detects electric power outputting current and/or voltage.
In above-mentioned steps step S1011 and step S1031, in order to guarantee the stability of power-supply system, need to detect the source current of input power and power output and/or voltage.Also can in preset power circuit, configure soft-start circuit simultaneously, further improve the stability of power-supply system.
As shown in Figure 5, in the present embodiment, in step S102, after step S1026, also comprise:
Step S1027, when load capacity is greater than predetermined load value, connects its more than Huo Yi road, described preset power circuit Zhong Yi road minor power circuit according to pre-defined rule;
Step S1028, the parallel circuits that the sub-power circuit by all connections in preset power circuit forms carries out power adjustments to input power.
The present embodiment is used for regulating the preset power circuit of output power of power supply by setting, and according to the actual load capacity detecting, configure the quantity of the sub-power circuit in preset power circuit, thereby in preset power circuit, switching the sub-power circuit choose respective numbers regulates and provides its power demand for load input power, reduced source power loss, improved power supply delivery efficiency, further reduced user's total cost of ownership (Total Cost of Ownership, TCO); In addition, do not need the self check equal time of slow startup and control circuit, make load response fast, also can between each sub-power circuit, switch according to default return difference value, reduced frequent power-supply system risk and the load power down risk of bringing of switching of sub-power circuit simultaneously.
As shown in Figure 6, one embodiment of the invention proposes a kind of device that improves specific proportion load efficiency of power source, comprising:
Detection module 501, for detection of power-carrying capacity;
Power conditioning module 502 for according to load capacity and pre-defined rule, is chosen at least one way power circuit input power is carried out to power adjustments in preset power circuit;
Output module 503, for the power after regulating to load output.
In the present embodiment, preset power circuit comprises two-way or the above sub-power circuit parallel with one another of two-way, and the governor circuit in parallel with sub-power circuit.
Fig. 7 is the preset power circuit one embodiment schematic diagram of the present embodiment.
As shown in Figure 7, this preset power circuit comprises two way power circuits, and each way power circuit includes a pfc circuit and an inverter circuit.
Wherein L2, VD1, VD3, VD5, VD8, VT2, VT4 form the pfc circuit of a way power circuit; L3, VD2, VD4, VD6, VD7, VT1, VT3 form the pfc circuit of another way power circuit, and bus capacitor shares.When load being detected and be less than 50%, by controlling VD1～VD4, its control signal is sent by control board, disconnects a road PFC, only allows wherein Yi road PFC work; When load being detected and be greater than 55%, allow disconnect Na mono-tunnel and resume work, two-way is powered simultaneously.
VT1A, VT2A, VT3A, VT4A, VD1A, VD2A, L1A, C3 form the inverter circuit of a way power circuit; VT1B, VT2B, VT3B, VT4B, VD1B, VD2B, L1C, C3 form another road of the inverter circuit of another way power circuit, and its median generatrix and C3 share.Control signal is sent by the control board sharing, and control signal can be identical or controls respectively, when load being detected and be less than 50%, by controlling the break-make of VT1A, VT2A, VT3A, VT4A and VT1B, VT2B, VT3B, VT4B, only allows a wherein road job; When load being detected and be greater than 50%, allow another road also work, two-way is powered simultaneously.
VD1-VD4 is also replaceable is SCR.
As shown in Figure 8, power conditioning module 502 specifically comprises:
Judging unit 5021, for judging whether load capacity is greater than predetermined load value;
Control unit 5022, when being greater than predetermined load value when load capacity, chooses and connects all sub-power circuits in preset power circuit; And when load capacity is less than predetermined load value, according to pre-defined rule, choose the sub-power circuit of predetermined quantity in preset power circuit;
Cutting unit 5023, when being less than predetermined load value when load capacity, the circuit that cuts off its minor power circuit in described preset power circuit connects;
Regulon 5024, when being greater than predetermined load value when load capacity, the parallel circuits consisting of all sub-power circuit of choosing carries out power adjustments to input power; And when load capacity is less than predetermined load value, the parallel circuits that the sub-power circuit by predetermined quantity in the preset power circuit of choosing forms carries out power adjustments to input power.
As shown in Figure 9, another embodiment of the present invention proposes a kind of device that improves specific proportion load efficiency of power source, and on the basis of above-described embodiment, this device also comprises:
Module 500 is set, for preset power circuit is set;
In the present embodiment, preset power circuit comprises two-way or the above sub-power circuit parallel with one another of two-way, and the governor circuit in parallel with sub-power circuit.
In the present embodiment, control unit 5022, also when being greater than predetermined load value when load capacity, connects described its minor power circuit more than Huo Yi road, described preset power circuit Zhong Yi road according to pre-defined rule;
Regulon 5024, the parallel circuits also forming for the sub-power circuit by all connections of preset power circuit carries out power adjustments to input power.
Detection module 501, also for detection of the source current of input power and/or source current and/or the voltage of voltage and detection power output.
The embodiment of the present invention is used for regulating the preset power circuit of output power of power supply by setting, and according to the actual load capacity detecting, in preset power circuit, switch the sub-power circuit of choosing respective numbers input power is regulated, thereby for load provides its power demand, reduced source power loss, improve power supply delivery efficiency, further reduced user's total cost of ownership; In addition, each sub-power circuit common bus, soft-start circuit and control circuit etc., make control circuit in " Hot Spare " state, the self check equal time that does not need slow startup and control circuit, related circuit can turn on and off fast, make load response fast, also can between each sub-power circuit, switch according to default return difference value, reduced frequent power-supply system risk and the load power down risk of bringing of switching of sub-power circuit simultaneously.
The foregoing is only the preferred embodiments of the present invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or flow process conversion that utilizes specification of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. a method that improves specific proportion load efficiency of power source, is characterized in that, comprises the following steps:
Detect power-carrying capacity;
According to described load capacity and pre-defined rule, in preset power circuit, choose at least one way power circuit input power is carried out to power adjustments; Specifically comprise:
Judge whether described load capacity is greater than predetermined load value;
When load capacity is greater than predetermined load value, choose and connect all sub-power circuits in preset power circuit; The parallel circuits consisting of all sub-power circuit of choosing carries out power adjustments to input power;
When load capacity is less than predetermined load value, according to described pre-defined rule, choose the sub-power circuit of predetermined quantity in described preset power circuit; The circuit that cuts off its minor power circuit in described preset power circuit connects; The parallel circuits that sub-power circuit by predetermined quantity in the described preset power circuit of choosing forms carries out power adjustments to described input power;
Power after regulating to load output; Each sub-power circuit common bus, soft-start circuit and control circuit, make control circuit in " Hot Spare " state.
2. method according to claim 1, is characterized in that, before the step of described detection power-carrying capacity, also comprises:
Described preset power circuit is set, and described preset power circuit comprises two-way or the above sub-power circuit parallel with one another of two-way, and the governor circuit in parallel with described sub-power circuit.
3. method according to claim 2, is characterized in that, the step that the described parallel circuits consisting of the sub-power circuit of predetermined quantity in the preset power circuit of choosing carries out power adjustments to described input power also comprises afterwards:
When described load capacity is greater than predetermined load value, according to described pre-defined rule, connect described its minor power circuit more than Huo Yi road, described preset power circuit Zhong Yi road;
The parallel circuits that sub-power circuit by all connections in described preset power circuit forms carries out power adjustments to described input power.
4. method according to claim 3, is characterized in that, before described detection power-carrying capacity, also comprises: detect power supply input current and/or voltage.
5. method according to claim 4, is characterized in that, also comprises: detect electric power outputting current and/or voltage before the step of described power after load output adjusting.
6. a device that improves specific proportion load efficiency of power source, is characterized in that, comprising:
Detection module, for detection of power-carrying capacity;
Power conditioning module for according to described load capacity and pre-defined rule, is chosen at least one way power circuit input power is carried out to power adjustments in preset power circuit; Described power conditioning module specifically comprises:
Judging unit, for judging whether described load capacity is greater than predetermined load value;
Control unit, when being greater than predetermined load value when load capacity, chooses and connects all sub-power circuits in preset power circuit; And when described load capacity is less than predetermined load value, according to described pre-defined rule, choose the sub-power circuit of predetermined quantity in described preset power circuit;
Cutting unit, for when described load capacity is less than predetermined load value, the circuit that cuts off its minor power circuit in described preset power circuit connects;
Regulon, for when described load capacity is greater than predetermined load value, the parallel circuits consisting of all sub-power circuit of choosing carries out power adjustments to input power; And when described load capacity is less than predetermined load value, the parallel circuits that the sub-power circuit by predetermined quantity in the described preset power circuit of choosing forms carries out power adjustments to described input power;
Output module, for the power after regulating to load output; Each sub-power circuit common bus, soft-start circuit and control circuit, make control circuit in " Hot Spare " state.
7. device according to claim 6, is characterized in that, described device also comprises:
Module is set, and for described preset power circuit is set, described preset power circuit comprises two-way or the above sub-power circuit parallel with one another of two-way, and the governor circuit in parallel with described sub-power circuit.
8. device according to claim 7, is characterized in that,
Described control unit, also for when described load capacity is greater than predetermined load value, connects described its minor power circuit more than Huo Yi road, described preset power circuit Zhong Yi road according to described pre-defined rule;
Described regulon, the parallel circuits also forming for the sub-power circuit by all connections of described preset power circuit carries out power adjustments to described input power.
9. device according to claim 8, is characterized in that, described detection module, also for detection of power supply input current and/or voltage and detection electric power outputting current and/or voltage.
10. device according to claim 9, is characterized in that, described sub-power circuit comprises: pfc circuit and inverter circuit.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201010240569.7A CN101917008B (en) | 2010-07-29 | 2010-07-29 | Method and device for improving specific proportion load efficiency of power source |
| PCT/CN2011/075979 WO2012013099A1 (en) | 2010-07-29 | 2011-06-20 | Method for improving specific proportion load efficiency of power supply and apparatus thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201010240569.7A CN101917008B (en) | 2010-07-29 | 2010-07-29 | Method and device for improving specific proportion load efficiency of power source |
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| CN101917008B true CN101917008B (en) | 2014-11-05 |
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| CN101917008B (en) * | 2010-07-29 | 2014-11-05 | 中兴通讯股份有限公司 | Method and device for improving specific proportion load efficiency of power source |
| CN103019359B (en) * | 2011-09-23 | 2015-12-02 | 中国科学院声学研究所 | A kind of is the method for AMC card dynamic assignment power, device and ATCA support plate |
| CN103186216A (en) * | 2011-12-29 | 2013-07-03 | 英业达科技有限公司 | Cabinet server system and power supply control method thereof |
| CN104113129B (en) * | 2013-04-22 | 2016-05-18 | 康舒科技股份有限公司 | Redundancy power supply system |
| CN104753411A (en) * | 2013-12-26 | 2015-07-01 | 南京德朔实业有限公司 | Brushless motor and control method thereof |
| CN104362730A (en) * | 2014-10-24 | 2015-02-18 | 广东易事特电源股份有限公司 | Control method for promoting light load of UPS (Uninterrupted Power Supply) |
| CN108230983A (en) * | 2018-01-19 | 2018-06-29 | 昆山国显光电有限公司 | The method for managing power supply of display screen |
| WO2020248168A1 (en) | 2019-06-12 | 2020-12-17 | Abb Schweiz Ag | Interleaved converter |
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| CN1967963A (en) * | 2006-06-01 | 2007-05-23 | 华为技术有限公司 | Method and system for power supply device |
| CN101340087A (en) * | 2008-07-22 | 2009-01-07 | 上海海事大学 | DC parallel power distributing circuit based on pulse width distribution |
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| CN1967963A (en) * | 2006-06-01 | 2007-05-23 | 华为技术有限公司 | Method and system for power supply device |
| CN101369733A (en) * | 2008-06-25 | 2009-02-18 | 艾默生网络能源***北美公司 | Electric power system |
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| CN101917008A (en) | 2010-12-15 |
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