CN101267118A - A multi-power module system and its power management method - Google Patents
A multi-power module system and its power management method Download PDFInfo
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Abstract
The embodiment of the invention provides a multi-power modules system and its power management method, relating to a power management system and its power management method. The method resolves the technical problems of the high redundancy of the present multi-power module system, lower converting efficiency of the power. The multi-power modules system includes a main equipment and at least two power modules for supplying power to the main equipment, the main equipment is electrically connected with a signal processing unit, the signal processing unit is connected with the power module by an internal communication bus, the signal processing unit sends command to the power module by the internal communication bus, setting at least one power modules of the power modules being a normal working mode, at least one power modules being a spare working mode. The management method of the multi-power modules system is used for managing the multi-power modules system. The invention is mainly applied for location having high credibility such as communication system etc.
Description
Technical field
The present invention relates to a kind of power-supply system, be specifically related to a kind of multi-power module system and method for managing power supply thereof.
Background technology
At present, electronic equipment all passes through power module (power module) usually and powers, common power module has power supply changeover device (adaptor), electronic equipment built-in power (built-in power) and can directly be inserted in miniaturized electric source module on the electronic device circuitry plate etc., because power module can be according to the suitable voltage of needs output of main equipment, have advantages such as regulation voltage is convenient, flexible, so obtained using widely.Multi-power module system has the high strong point of reliability when having had all advantages of power module concurrently, so communication system and other require the high occasion of power supply reliability, usually adopting multi-power module system is the main equipment power supply of communication system, before using multi-power module system, to dispose the power module of the power consumption that is enough to guarantee main equipment under a plurality of normal operating conditionss according to the power consumption of main equipment, cause power failure in order to prevent power module to lose efficacy, at least one power module must be set as standby, for example: 2+1 redundancy or 2+2 redundancy more.The 2+1 redundancy is meant that the maximum power consumption demand of main equipment in the multi-power module system is no more than the summation of three power modules, two power module rated power wherein in the multi-power module system, even that is to say and be in maximum power consumption in the main equipment course of work, even have a power module power output this moment is 0, multi-power module system also can satisfy the power demand of main equipment; The redundant difference with the 2+1 redundancy of 2+2 is, even be in maximum power consumption in the main equipment course of work, is 0 even have two power module power outputs this moment, and multi-power module system also can satisfy the power demand of main equipment.
When main equipment is worked in the existing multi-power module system, all power modules all are in the operating state that power output is arranged, because the power consumption of main equipment is normally in a comparatively stable scope, and multi-power module system disposes the redundant power module, so total power output that all power modules can reach maximum power consumption greater than main equipment usually is a lot, or even several times of the maximum power consumptions of main equipment, so the operating efficiency of all power modules has only reached the part of rated power during multi-power module system work, all is operated in export ratio (power output of power module and the ratio of rated power) than low spot.
In realizing process of the present invention, the inventor finds that there are the following problems at least in the existing technology that adopts multi-power module system to power: multi-power module system redundant power module is many, redundancy is bigger, though each power module all in running order but export ratio is relatively more balanced and lower, cause the conversion efficiency of power supply lower, usually the export ratio of power module is that energy dissipation is serious under 30%～40% the state.
Summary of the invention
The embodiment of the invention provides a kind of multi-power module system, can make full use of the power module of normal mode of operation, has solved the lower technical problem of existing multi-power module system redundancy conversion efficiency bigger, power supply.
For achieving the above object, the embodiment of the invention provides a kind of multi-power module system,
Comprise main equipment and be at least two power modules of main equipment power supply, described main equipment is electrically connected with signal processing unit, described signal processing unit is connected by internal communication bus with described power module, described signal processing unit is according to the power consumption value of described main equipment and the number range that preestablishes and be stored in the export ratio of power module under each pattern in the described signal processing unit, by internal communication bus power module is sent instruction, set that at least one power module is a normal mode of operation in the described power module, at least one power module is standby mode of operation.
The embodiment of the invention also provides a kind of method for managing power supply of multi-power module system, and described multi-power module system comprises at least two power modules, and the method for managing power supply of described multi-power module system may further comprise the steps:
The number range of the export ratio of power module under pre-set each pattern, and this number range is stored in the signal processing unit;
The main equipment that starts described power module and rely on described power module power supply, described power module all is in the operating state of power output;
Signal processing unit sets according to the number range of the export ratio of power module under the power consumption value of main equipment and described each pattern that at least one power module is that normal mode of operation, at least one power module are standby mode of operation in the described power module.
Can to set at least one power module according to the number range of the export ratio of power module under the power consumption value of main equipment and each pattern be normal mode of operation to signal processing unit in the embodiment of the invention, at least one power module is standby mode of operation, make full use of the power module of the bigger normal mode of operation of the number range that is in export ratio, and the power module of the less standby mode of operation of the number range that makes export ratio is as standby, when making power module satisfy the power consumption demand of main equipment, make different power modules, be in the pattern of the number range of different export ratios, avoided all power modules all to be in the lower operating state that power output is arranged of export ratio, so it is bigger to have solved existing multi-power module system redundancy, the technical problem that the conversion efficiency of power supply is lower.
Description of drawings
The schematic diagram of a kind of multi-power module system that Fig. 1 is provided for the embodiment of the invention 1;
The schematic diagram of another multi-power module system that Fig. 2 is provided for the embodiment of the invention 2;
The schematic diagram of another multi-power module system that Fig. 3 is provided for the embodiment of the invention 3;
Fig. 4 is the schematic flow sheet of the management method of embodiment of the invention multi-power module system;
Fig. 5 is the schematic flow sheet of step S3 in the management method of embodiment of the invention multi-power module system shown in Figure 4.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the invention is described in detail.
Embodiment 1:
As shown in Figure 1, embodiment of the invention multi-power module system comprises main equipment 5 and is power module 1, power module 2, power module 3 and the power module 4 of main equipment 5 power supplies, the rated power of each power module is identical, main equipment 5 is electrically connected with signal processing unit 6, and signal processing unit 6 is connected by internal communication bus 7 with power module.
The rated power of each power module of the embodiment of the invention is identical, adopts the identical power module of rated power to be convenient to mutual replacement, is used for standby power module and just can plays standby preferably effect, also is convenient to simultaneously to manage, the stability of maintenance and whole system.
Have two power module redundancies in the embodiment of the invention multi-power module system at least, the pattern of power module comprises normal mode of operation and standby mode of operation, and normal mode of operation comprises high efficiency point and low efficiency point; Standby mode of operation comprises slight load model and active standby mode.
The number range of the export ratio of power module is the standard of definition normal mode of operation, standby mode of operation, the number range of export ratio is set, and it is stored in the signal processing unit 6 in advance according to the power consumption mobility scale of main equipment, the model and the rated power of power module under each pattern.
Normal mode of operation refers to that the number range of the export ratio of power module is the operating state that power output is arranged of 30%～100% (not comprising 30%) in the embodiment of the invention, wherein: the number range of the export ratio of high efficiency point is 80%～100%, and the number range of the export ratio of low efficiency point was 30%～70% (not comprising 30%); Standby mode of operation is meant that the number range of the export ratio of power module is 0～30% operating state, and wherein: the number range of the export ratio of slight load model was 0～30% (not comprising 0); Active standby mode refers to that the numerical value of power module export ratio is 0, and the electric energy input is arranged, but does not have power output, has only its control section in running order.
In the embodiment of the invention, after starting each power module and main equipment 5, each power module of initial condition is on average shared the power output of main equipment 5, signal processing unit 6 reads the power consumption value of main equipment 5, set the pattern of each power module according to the number range of the export ratio of power module under each pattern, and send the control chip 10 of instruction by control connection bus 71 to power module, set one of them power module for example power module 1 be in the high efficiency point; Set the pattern of other power modules then, make other power modules share 1 power output of not bearing of power module, for example make power module 2 be in that low efficiency point, power module 3 are in slight load model, power module 4 is in active standby mode; Certainly, in the embodiment of the invention when the power consumption of main equipment 5 is smaller, signal processing unit 6 also can all be set at low efficiency point with power module 1 and power module 2, as long as have at least a power module to be in normal mode of operation, have at least a power module to be in standby mode of operation, all can reduce the redundancy of multi-power module system, the conversion efficiency of raising power supply.
Setting which power module is the high efficiency point, which is a low efficiency point, which is slight load model or active standby mode, the program that weaves in advance that is the control chip 10 by being stored in power module is selected, because the rated power of each power module is identical, so can select at random, also can each power module be numbered by program, respectively the pattern of specified power module is set after specifying numbering by program then, because each power module is numbered the easier realization of the method for setting pattern more respectively, also help the maintenance of hardware, so adopt in the fact Example of the present invention each power module is numbered earlier, specify the back, the method of setting pattern is again set the pattern of each power module.
Because the pattern of each power module that instruction sets, be specially the export ratio of each power module, and the control chip 10 of power module is adjusted its power output by the output voltage of direct each power module of control after receiving instruction, can certainly adjust its power output by the mode of direct its output current of control, because voltage and current all is analog quantity rather than digital quantity, during adjusting, more or less have certain error, after so the control chip 10 transmission instructions of 6 pairs of power modules of signal processing unit are finished, signal processing unit 6 must read the output voltage values that bus 72 reads each power module in real time by voltage, and according to the output voltage values of power module, calculate the power output and the export ratio thereof of power module, the number range of the export ratio of power module under this export ratio and pre-set each pattern is compared, whether the export ratio of judging power module the pattern that sets of entering signal processing unit 6, the export ratio of just judging each power module and the error size that sets export ratio are controlled at the export ratio value of each power module in the corresponding pattern;
If the pattern that does not have entering signal processing unit 6 to set of power module, then signal processing unit 6 is set the pattern of each power module once more according to the number range of the export ratio of power module under each pattern, and sends the control chip 10 of instruction to power module by control connection bus 71.
One section preset time of power module work, the control chip 10 of 6 pairs of power modules of signal processing unit sends the pattern that each power module is adjusted in instruction by turns, power module 1 is adjusted into active standby mode, power module 2 is adjusted into the high efficiency point, power module 3 is adjusted into low efficiency point, power module 4 is adjusted into slight load model; Preset time is by setting and being pre-stored in the signal processing unit 6, preset time is mainly considered the stability and the power module decision in useful life of multi-power module system work, the frequent setting is unfavorable for the stability of a system if the time is too short, time is oversize then to be unfavorable for prolonging and to be in the useful life that normal mode of operation especially is in the power module of high efficiency point, and the numerical value of this time period can be made as 1/10～1/2 of single power module useful life;
In the process of power module work, signal processing unit 6 detects the work ruuning situation of each power module always in real time by failure detection bus 73, if after one of them inefficacy of power module, signal processing unit 6, cancellation is to the management of each power module, and the power module of Shi Xiaoing is not on average shared the power output of main equipment 5.
The embodiment of the invention adopts signal processing unit to set the pattern of power module, make that the export ratio of the power module be in normal mode of operation is higher, and make the power module that is in standby mode of operation play standby effect, when having guaranteed the reliability of system, made full use of the power module that is in normal mode of operation, improved whole system operation efficient and reduced energy dissipation; Signal processing unit makes power module rotation pattern each other in addition, so prolonged the useful life of multi-power module system.
Embodiment 2:
As shown in Figure 2, the embodiment of the invention is substantially the same manner as Example 1, and its difference is: embodiment of the invention multi-power module system comprises that three power modules are power module 1, power module 2 and power module 3, wherein have two power module redundancies.
In the embodiment of the invention, normal mode of operation is the high efficiency point, and standby mode of operation comprises slight load model and active standby mode.Signal processing unit 6 reads the power consumption value of main equipment 5, set the pattern of each power module according to the number range of the export ratio of power module under each pattern, and send the control chip 10 of instruction by control connection bus 71 to power module, set wherein at least one power module for example power module 1 be in the high efficiency point; Set the pattern of other power modules then, make other power modules share 1 power output of not bearing of power module, make power module 2 be in slight load model, power module 3 is in active standby mode;
After the control chip 10 transmission instructions of 6 pairs of power modules of signal processing unit are finished, signal processing unit 6 reads the output voltage values that bus 72 reads each power module in real time by voltage, and according to the output voltage values of power module, calculate the power output and the export ratio thereof of described power module, the number range of the export ratio of power module under this export ratio and pre-set each pattern is compared, and whether the export ratio of judging power module the pattern that sets of entering signal processing unit;
If the pattern that does not have entering signal processing unit 6 to set of power module, then signal processing unit 6 is set the pattern of each power module once more according to the number range of the export ratio of power module under each pattern, and sends the control chip 10 of instruction to power module by control connection bus 71;
Behind one section preset time of power module 1 work, signal processing unit 6 is adjusted into power module 2 the high efficiency point, power module 3 is adjusted into slight load model, power module 1 is adjusted into active standby mode.
The embodiment of the invention makes that power module 1 export ratio is higher, power module 2 plays standby effect with power module 3, when having guaranteed the reliability of system, made full use of the power module that is in normal mode of operation, improved whole system operation efficient and reduced energy dissipation; Make power module rotation pattern each other simultaneously, prolonged the useful life of multi-power module system.
Embodiment 3:
As shown in Figure 3, the embodiment of the invention is substantially the same manner as Example 1, its difference is: embodiment of the invention multi-power module system comprises two power modules, be power module 1 and power module 2, a power module redundancy is wherein arranged, the normal mode of operation of power module is the high efficiency point in the embodiment of the invention, and standby mode of operation is slight load model.
In the embodiment of the invention, signal processing unit 6 reads the power consumption value of main equipment 5, set the pattern of each power module according to the number range of the export ratio of power module under each pattern, and send the control chip 10 of instruction by control connection bus 71 to power module, set one of them power module for example power module 1 be in the high efficiency point; Set the pattern of power module 2 then, make power module 2 share 1 power output of not bearing of power module, make power module 2 be in slight load model;
After the control chip 10 transmission instructions of 6 pairs of power modules of signal processing unit are finished, signal processing unit 6 reads the output voltage values that bus 72 reads each power module in real time by voltage, and according to the output voltage values of power module, calculate the power output and the export ratio thereof of described power module, the number range of the export ratio of power module under this export ratio and pre-set each pattern is compared, and whether the export ratio of judging power module the pattern that sets of entering signal processing unit 6;
If the pattern that does not have entering signal processing unit 10 to set of power module, then signal processing unit 6 is set the pattern of each power module once more according to the number range of the export ratio of power module under each pattern, and sends the control chip 10 of instruction to power module by control connection bus 71;
One section preset time of power module 1 work, signal processing unit 6 is adjusted the pattern of power module by turns, and power module 2 is set at normal mode of operation, power module 1 is set at slight load model;
A power module export ratio is higher in the embodiment of the invention, another power module plays standby effect, so guaranteed the reliability of system, take turns two power modules that change jobs each other, avoided the export ratio of power module all lower, so prolonged the useful life of multi-power module system.
The embodiment of the invention also provides a kind of method for managing power supply of multi-power module system, and the multi-power module system that is used for the embodiment of the invention is provided manages, and as shown in Figure 4, the management method of described multi-power module system may further comprise the steps:
S1, preestablish the number range of the export ratio of power module under each pattern, and this number range is stored in the signal processing unit;
S2, the main equipment that starts described power module and rely on described power module power supply, described power module all is in the operating state of power output;
After starting all power modules and main equipment, under the initial condition, each power module is on average shared the power consumption of main equipment, because main equipment power consumption in running is not what fix, is that the task along with main equipment changes within the specific limits.When the power consumption of main equipment was big, mean allocation was big to the power on each power module, and its export ratio is also bigger, and when the power consumption of main equipment hour, mean allocation is little to the power on each power module, and its export ratio is also less.
S3, signal processing unit set according to the number range of the export ratio of power module under the power consumption value of main equipment and described each pattern that at least one power module is that normal mode of operation, at least one power module are standby mode of operation in the described power module;
One period scheduled time is adjusted the pattern of each power module by turns at interval for S4, signal processing unit;
In S5, the running, lost efficacy and then to cancel management to each power module if signal processing unit detects power module by the failure detection bus, the power output of main equipment is on average shared in the signal processing unit cancellation to the power module that did not lose efficacy after the management of each power module.
As shown in Figure 5, the S3 of step described in the embodiment of the invention specifically may further comprise the steps:
S301, signal processing unit read the power consumption value of main equipment, number range according to the export ratio of power module under each pattern sends the control chip of instruction to power module by the control connection bus, setting at least one power module is that normal mode of operation, a power module are standby mode of operation, the power output that the power module that makes the power module of standby mode of operation share normal mode of operation is not born;
S302, signal processing unit read the output voltage values that bus reads each power module in real time by voltage, and according to the output voltage values of power module, calculate the power output and the export ratio thereof of described power module;
S303, signal processing unit compare the number range of the export ratio of power module under the export ratio of each power module and pre-set each pattern, judge whether the export ratio of power module has entered the pattern that described step S301 sets;
S304, if power module do not enter the pattern that described step S301 sets, then signal processing unit sends described instruction among the described step S301 to the control chip of power module by the control connection bus once more, returns step S302 then.
Describe in detail for example below:
The method for managing power supply of a kind of multi-power module system that the embodiment of the invention provided can be used for the multi-power module system that the embodiment of the invention 1 is provided is managed.
As shown in Figure 1, the excursion of supposing the power consumption numerical value of main equipment 5 is that 2500W～4000W is (after starting main equipment 5, even main equipment 5 is not worked the power consumption of 2500W is not at least arranged yet), the concrete numerical value of supposing the some time is 3000W, for guaranteeing to have two redundant power modules in four power modules at least, power module rated power must be greater than 2000W, and each power module rated power of hypothesis is 2000W in the embodiment of the invention.
After starting power module and relying on the main equipment 5 of power module power supply, the power output of each power module is 750W, its export ratio is 37.5%, because preestablishing and be stored in the number range of the export ratio of the high efficiency point in the signal processing unit is 80%～100%, this moment, signal processing unit 6 was given one of them power module by internal communication bus 7 transmission mode setting commands, the control chip of power module 1 for example, setting power module 1 is 90% for the intermediate value (being the mean value of maximum and minimum value) of the number range of the high efficiency point export ratio of normal mode of operation makes its export ratio, power output is 1800W, is set at intermediate value and can reduces the error of adjusting appearance; The residue power output that signal processing unit 6 is not shared power module 1 is distributed to power module 2 and power module 3, and the export ratio of setting power module 2 is 50%, and power output is 1000W, is the low efficiency point of normal mode of operation; Setting power module 3 is 10% for its export ratio of slight load model, and power output is 200W, and setting power module 4 is active standby mode, and its power output and export ratio are 0;
(this situation only can instantaneous generation if the power consumption of main equipment 5 reaches maximum 4000W, and occurrence probability is considerably less), then signal processing unit 6 all is adjusted into 100% with the export ratio of power module 1, shares the power output of 2000W, is the high efficiency point of normal mode of operation; Power module 2 export ratios are adjusted into 70%, are the low efficiency point of normal mode of operation, share the power output of 1400W, the export ratio of power module 3 is adjusted into 30%, share the power output of 600W, be slight load model; Setting power module 4 is active standby mode, and its power output and export ratio are 0;
If the power consumption of main equipment 5 drops to minimum value 2500W, this moment, signal processing unit 6 all was adjusted into 90% with power module 1 export ratio, shared the power output of 1800W, still at the high efficiency point of normal mode of operation; The 700W residue power output that signal processing unit 6 is not shared power module 1 is distributed to power module 2 and power module 3, and the export ratio of power module 2 is adjusted into 31%, shares the power output of 620W, is the low efficiency point of normal mode of operation; The export ratio of power module 3 is adjusted into 4%, shares 100W, be still slight load model;
After setting is finished, if each power module has entered the pattern that signal processing unit 6 configures, then
Main signal processing unit 6 does not just need frequently to set the pattern of each power module, once more to instructing if the control chip of each power module sends;
Up to work one period scheduled time, this time period be assumed to be single power module life time 1/10 after, signal processing unit 6 is adjusted the pattern of each power module more by turns.The power module that will be in normal mode of operation high efficiency point is set at active standby mode, the power module that will be in slight load model is set at the low efficiency point of normal mode of operation, the power module that will be in active standby mode is set at slight load model, and the power module that will be in the normal mode of operation low efficiency point is adjusted into normal mode of operation high efficiency point;
In the power module running, if there is one to break down and lost efficacy, then signal processing unit 6 is by the control chip of internal communication bus 7 transfer instructions to power module, and cancellation is to the management of power module, and the power module of Shi Xiaoing is not on average shared the power output of main equipment 5.
Certainly, the method for managing power supply of embodiment of the invention multi-power module system also can be applied in the multi-power module system that the identical multi-power module system of four groups of rated power and the embodiment of the invention 2 and embodiment 3 provided.
How the method for managing power supply that describes embodiment of the invention multi-power module system below for example in detail is applied in a kind of multi-power module system that embodiment 2 as shown in Figure 2 provided.
In a kind of power module system that embodiment 2 is as shown in Figure 2 provided, the excursion of supposing the power consumption numerical value of main equipment 5 is 1200W～1500W, and selecting rated power is the power module of 1500W.
When the power consumption numerical value of main equipment 5 is 1500W, then during initial condition, the power output that each power module is shared naturally is 500W, export ratio is 33.3%, the number range of supposing the export ratio of the normal mode of operation high efficiency point that set this moment still is 80%～100%, the export ratio number range of slight load model is 0～30%, then this moment, signal processing unit 6 one of them power module were set at normal mode of operation high efficiency point, for example power module 1 is set at the high efficiency point of normal mode of operation, this moment, the export ratio of power module 1 was 90%, and power output is 1350W; Power module 2 is set at slight load model, and its export ratio is 10%, shares 150W; Power module 3 is set at the active standby mode power output and export ratio is 0.
After setting was finished, if each power module does not have entering signal processing unit 6 in the set pattern of reserving of above-mentioned steps, then main signal processing unit 6 just sent the pattern that each power module is set in instruction to the control chip as if each power module once more;
Up to work one period scheduled time, this time period be assumed to be single power module life time 1/10 after, signal processing unit 6 is adjusted the pattern of each power module by turns;
In the power module running, there is one to break down and lost efficacy, then signal processing unit 6 is given the control chip of each power module by internal communication bus 7 transfer instructions, and cancellation is to the management of all power modules.
Obviously, the method for managing power supply of embodiment of the invention multi-power module system also can be applied in the identical power module system of three groups of rated power, and the pattern of three or three groups power modules can be set and be adjusted by turns to signal processing unit 6.
The method for managing power supply of embodiment of the invention multi-power module system also can be used for a kind of multi-power module system that as shown in Figure 3 embodiment 3 is provided is managed.
How the method for managing power supply that describes embodiment of the invention multi-power module system below for example in detail is applied in a kind of power module system that embodiment 3 as shown in Figure 3 provided.
In a kind of power module system that embodiment 3 is as shown in Figure 3 provided, the excursion of supposing the power consumption numerical value of main equipment 5 is 1200W～1500W, owing at least a redundant power module will be arranged, so the rated power of each power module is at least the maximum 1500W of the power consumption of main equipment 5, if the rated power of power module is too big, can cause the waste of device resource, be 1500W so suppose the rated power of each power module here herein.
Initial condition, the power consumption numerical value of supposing main equipment 5 this moment is 1400W, the power output that each power module is shared naturally is 700W, this moment each power module to be operated in export ratio be 46.7% POL, the number range of supposing the export ratio of the normal mode of operation high efficiency point that set this moment also is 80%～100%, the export ratio number range of slight load model was 0～30% (not comprising 0), signal processing unit 6 is set one of them power module at this moment, for example the power output of power module 1 is 1350W (export ratio is 90%), is the high efficiency point of normal mode of operation; Set the power output of power module 2 again, make it share remaining 50W (export ratio is 3.3%), be slight load model; Certainly, signal processing unit 6 also can be adjusted into 85% with the export ratio of power module 1, shares the power output of 1190W, also is the high efficiency point of normal mode of operation; Making power module 2 export ratios is 15%, shares 225W, also is slight load model;
After setting was finished, if each power module has not entered signal processing unit 6 in the set pattern of reserving of above-mentioned steps, then main signal processing unit 6 just sent the pattern that each power module is set in instruction to the control chip as if each power module once more;
Up to work one period scheduled time, this time period be assumed to be single power module life time 1/10 after, signal processing unit 6 is adjusted the pattern of each power module by turns;
In the power module running, as if having a power module to break down and losing efficacy, then signal processing unit 6 is by the control chip of internal communication bus 7 transfer instructions to power module, and cancellation is to the management of power module.
Obviously, the method for managing power supply of embodiment of the invention multi-power module system also can be applied in the identical power module system of two groups of rated power, the pattern of two or two groups power modules can be set, be adjusted by turns to signal processing unit, the power consumption demand when satisfying two of main equipment uses or two groups of power modules.
In sum, to set at least one power module according to the number range of the export ratio of power module under the power consumption value of main equipment and each pattern be normal mode of operation to signal processing unit in the embodiment of the invention, at least one power module is standby mode of operation, make full use of the power module of the bigger normal mode of operation of the number range that is in export ratio, and the power module of the less standby mode of operation of the number range that makes export ratio is as standby, when making power module satisfy the power consumption demand of main equipment, make different power modules, be in the pattern of the number range of different export ratios, avoided all power modules all to be in the lower operating state that power output is arranged of export ratio, so it is bigger to have solved existing multi-power module system redundancy, the technical problem that the conversion efficiency of power supply is lower.
Claims (15)
1, a kind of multi-power module system, it is characterized in that: comprise main equipment and be at least two power modules of main equipment power supply, described main equipment is electrically connected with signal processing unit, described signal processing unit is connected by internal communication bus with described power module, described signal processing unit is according to the power consumption value of described main equipment and the number range that preestablishes and be stored in the export ratio of power module under each pattern in the described signal processing unit, by internal communication bus power module is sent instruction, set that at least one power module is a normal mode of operation in the described power module, at least one power module is standby mode of operation.
2, multi-power module system according to claim 1, it is characterized in that: described normal mode of operation is that the number range of the export ratio of power module is the operating state that power output is arranged of 30%～100% (not comprising 30%), described normal mode of operation comprises high efficiency point and low efficiency point, wherein:
The number range of the export ratio of described high efficiency point is 80%～100%;
The number range of the export ratio of described low efficiency point is 30%～70%.
3, multi-power module system according to claim 1, it is characterized in that: described standby mode of operation is meant that the number range of the export ratio of power module is the operating state of 0～30% (comprising 30%), described standby mode of operation comprises slight load model and active standby mode, wherein:
The number range of the export ratio of described slight load model was 0～30% (not comprising 0);
The numerical value of the export ratio of described active standby mode is 0, and the electric energy input is arranged, and does not have power output, has only its control section in running order.
4, multi-power module system according to claim 1 is characterized in that: the rated power of described power module is all identical.
5, multi-power module system according to claim 1 is characterized in that: described internal communication bus comprises that control connection bus, voltage read bus and failure detection bus;
Described signal processing unit is connected with the control chip of described power module by described control connection bus, and adopt the mode that the control chip of power module is sent instruction, set, adjust the pattern of power module by the control chip of described power module;
Described signal processing unit reads bus by described voltage and links to each other with the electric energy output end of described power module, and signal processing unit reads the output voltage that bus reads described power module in real time by described voltage;
Whether described signal processing unit links to each other with described power module by described failure detection bus, and detect described power module by described failure detection bus and lost efficacy.
6, according to each described multi-power module system in the claim 1 to 5, it is characterized in that: the one section preset time in described signal processing unit interval is adjusted the pattern of described power module by turns.
7, a kind of method for managing power supply of multi-power module system, described multi-power module system comprises at least two power modules, it is characterized in that: may further comprise the steps:
The number range of the export ratio of power module under pre-set each pattern, and this number range is stored in the signal processing unit;
The main equipment that starts described power module and rely on described power module power supply, described power module all is in the operating state of power output;
Signal processing unit sets according to the number range of the export ratio of power module under the power consumption value of main equipment and described each pattern that at least one power module is that normal mode of operation, at least one power module are standby mode of operation in the described power module.
8, the method for managing power supply of multi-power module system according to claim 7, it is characterized in that: described signal processing unit links to each other with described power module by the failure detection bus, and detect described power module by described failure detection bus and whether lost efficacy, lost efficacy and then cancelled management if signal processing unit detects power module by the failure detection bus each power module.
9, the method for managing power supply of multi-power module system according to claim 7, it is characterized in that: described signal processing unit sets according to the number range of the export ratio of power module under the power consumption value of main equipment and described each pattern that at least one power module is that normal mode of operation, at least one power module are the method for standby mode of operation in the described power module, specifically may further comprise the steps:
Signal processing unit reads the power consumption value of main equipment, number range according to the export ratio of power module under each pattern sends the control chip of instruction to power module by the control connection bus, setting at least one power module is that normal mode of operation, a power module are standby mode of operation, the power output that the power module that makes the power module of standby mode of operation share normal mode of operation is not born.
10, the method for managing power supply of multi-power module system according to claim 9, it is characterized in that: described signal processing unit sets according to the number range of the export ratio of power module under the power consumption value of main equipment and described each pattern that at least one power module is that normal mode of operation, at least one power module are the method for standby mode of operation in the described power module, and is further comprising the steps of:
Signal processing unit reads the output voltage values that bus reads each power module in real time by voltage, and according to the output voltage values of power module, calculates the power output and the export ratio thereof of described power module;
Signal processing unit compares the number range of the export ratio of power module under the export ratio of each power module and pre-set each pattern, judges whether the export ratio of power module has entered the pattern that above-mentioned steps sets;
If the pattern that does not enter described signal processing unit setting of power module, then signal processing unit sends the control chip of described instruction to power module by the control connection bus once more.
11, the method for managing power supply of multi-power module system according to claim 7, it is characterized in that: described normal mode of operation is that the number range of the export ratio of power module is the operating state that power output is arranged of 30%～100% (not comprising 30%), described normal mode of operation comprises high efficiency point and low efficiency point, wherein:
The number range of the export ratio of described high efficiency point is 80%～100%;
The number range of the export ratio of described low efficiency point is 30%～70%;
Described standby mode of operation is meant that the number range of the export ratio of power module is the operating state of 0～30% (comprising 30%), and described standby mode of operation comprises slight load model and active standby mode, wherein:
The number range of the export ratio of described slight load model was 0～30% (not comprising 0);
The numerical value of the export ratio of described active standby mode is 0, and the electric energy input is arranged, and does not have power output, has only its control section in running order.
12, the method for managing power supply of multi-power module system according to claim 11, it is characterized in that: described multi-power module system comprises at least three power modules, have two redundant power modules in the described power module at least, described normal mode of operation is the high efficiency point, and the standby mode of operation of described power module is slight load model and active standby mode.
13, according to the method for managing power supply of claim 7 or 11 or 12 described multi-power module systems, it is characterized in that: described signal processing unit is one period scheduled time at interval, adjusts the pattern of each power module by turns.
14, the method for managing power supply of multi-power module system according to claim 13 is characterized in that: the method that described signal processing unit is adjusted the pattern of described power module by turns is specially:
The power module that will be in high efficiency point is adjusted into active standby mode, the power module that will be in low efficiency point is adjusted into the high efficiency point, the power module that will be in slight load model is adjusted into low efficiency point, and the power module that will be in active standby mode is adjusted into slight load model.
15, the method for managing power supply of multi-power module system according to claim 13 is characterized in that: the method that described signal processing unit is adjusted the pattern of described power module by turns is specially:
The power module that will be in high efficiency point is adjusted into active standby mode, and the power module that will be in slight load model is adjusted into the high efficiency point, and the power module that will be in active standby mode is adjusted into slight load model.
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