CN104731294A - Uninterrupted power supply intelligent parallel operation power supply control system and method - Google Patents
Uninterrupted power supply intelligent parallel operation power supply control system and method Download PDFInfo
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Abstract
The invention provides an uninterrupted power supply intelligent parallel operation power supply control system and method which are used for achieving power supply control over a UPS system. The power supply control system comprises a load detecting unit, an awakening control unit and a turning-off control unit, wherein the load detecting unit is used for detecting the current load attribute of the UPS system, the awakening control unit is used for awakening at least one of UPS units in the dormant state currently to be in the power supply state when the current load attribute meets the first preset condition, and the turning-off control unit is used for turning-off at least one of the UPS units in the power supply state currently to be in the dormant state when the current load attribute meets the second preset condition. The UPS units are awakened or turned off according to the load attributes of the UPS system, the operation security of the UPS system can be improved, meanwhile, the operation cost of a machine room can be greatly lowered, and energy is saved.
Description
Technical field
The present invention relates to uninterrupted power source for electrical domain, more particularly, relate to the intelligent parallel operation electric power supply control system of a kind of uninterrupted power source and method.
Background technology
Society enters the information age, and along with the prosperity of internet, the importance of the data of large data age is self-evident.For meeting the demand data of large data age, data center miscellaneous fast development like the mushrooms after rain, as network data center, enterprise data center and Backup Data center etc., common carrier, bank finance system, government and each large enterprise etc. are all in the construction carrying out large-scale data center machine room.How to guarantee that data center machine room safe operation is the primary proposition of machine room power supply region.
The power load of data center's power-supply unit is usually all at thousands of more than KW, and how the annual electricity charge, up to tens million of unit, reduce the energy consumption of machine room, be then another important proposition of machine room power supply region.As everyone knows, the operation load of data center is nearly all powered by ups power, therefore, guarantees ups system safe operation, and improves the work efficiency of ups system self, is the core of data center machine room power supply region.
In modern T4 DBMS central machine room, the scheme that UPS electric power system adopts combining system to form double-bus usually ensures the reliability of powering, as shown in Figure 1.In this UPS parallel computer system, the size no matter reality is operated, all UPS unit all keep running status.But, the load of data center is that substep increases, especially network data center, initial stage load is little, if all UPS unit now in UPS parallel computer system all put into operation, itself running wastage is exactly a very large energy dissipation: first, with regard to the efficiency curve of UPS unit, when running load rate is too low, its operational efficiency is also by step-down, and at substantial energy is in vain incited somebody to action in the operation of ups system poor efficiency; And, learn principle according to control, when UPS parallel computer system is run under too low load factor, be also easy to cause system oscillation, cause machine accident of delaying.
Summary of the invention
The technical problem to be solved in the present invention is, the problem that, system lower for above-mentioned ups system energy use efficiency is easily vibrated, and provides the intelligent parallel operation electric power supply control system of a kind of new uninterrupted power source and method.
The technical scheme that the present invention solves the problems of the technologies described above is, there is provided a kind of uninterrupted power source intelligent parallel operation electric power supply control system, for realizing the power supply control of ups system, described ups system comprises multiple UPS unit and each UPS unit comprises at least one Power handling modules, described electric power supply control system comprises load detecting unit, wakes control module up, closing control unit, wherein: described load detecting unit, for detecting the present load attribute of ups system; Describedly wake control module up, for meet at described present load attribute first pre-conditioned time, current at least one UPS unit be in the UPS unit of dormant state is waken up as power supply state; Described closing control unit, for meet at present load attribute second pre-conditioned time, be at least one UPS unit in the UPS unit of power supply state close as dormant state by current; The power supply state of described UPS unit is that all Power handling modules of this UPS unit are all in running order, and the dormant state of described UPS unit is that at least one Power handling modules of this UPS unit is closed or standby.
In the intelligent parallel operation electric power supply control system of uninterrupted power source of the present invention, described present load attribute is current total load power, and described electric power supply control system also comprises: POL setup unit, for setting the first POL and the second POL; Describedly wake control module up and closing control unit comprises load factor computation subunit respectively, for according to described total load power calculation, each is in the average load power of the UPS unit of power supply state, and according to the actual loading rate of described average load power calculation UPS unit; Described first pre-conditioned for being in the actual loading rate of the UPS unit of power supply state more than the first POL in ups system, described second is pre-conditionedly in the actual loading rate of the UPS unit of power supply state less than the second POL in ups system.
In the intelligent parallel operation electric power supply control system of uninterrupted power source of the present invention, described electric power supply control system also comprises redundancy setup unit, and for setting the UPS unit redundancy number of units N1 of ups system, and this N1 is more than or equal to zero; Described load factor computation subunit calculates the average load power P avg of UPS unit by following calculating formula:
Pavg＝Psys/(N2-N1)，
Wherein Psys is the total load power of ups system, and N2 is total number of units of the UPS unit being in power supply state.
In the intelligent parallel operation electric power supply control system of uninterrupted power source of the present invention, UPS unit described in each has a priority; Described wake up control module described present load attribute meet first pre-conditioned time, UPS unit the highest for the current UPS unit medium priority being in dormant state is waken up as power supply state, and the priority this waken up for the UPS unit of power supply state be set to current be in the UPS unit of power supply state minimum; Described closing control unit described total load meet second pre-conditioned time, UPS unit the highest for the current UPS unit medium priority being in power supply state is closed as dormant state, and by this closedown be the priority of the UPS unit of dormant state be set to current be in the UPS unit of dormant state minimum.
In the intelligent parallel operation electric power supply control system of uninterrupted power source of the present invention, described electric power supply control system comprises rotation control module, for by the highest for priority and be in the UPS unit that power supply state reaches dormancy rotation time continuously and close as dormant state, dormant state will be in and the highest UPS unit of priority wakes up as power supply state simultaneously.
The present invention also provides a kind of uninterrupted power source intelligent parallel operation method for controlling power supply, and for realizing the power supply control of ups system, described ups system comprises multiple UPS unit and each UPS unit comprises at least one Power handling modules; Described method for controlling power supply comprises the following steps:
A () detects the present load attribute of ups system, and described present load attribute meet first pre-conditioned time perform step (b), meet second pre-conditioned time perform step (c);
B current at least one UPS unit being in dormant state wakes up as power supply state by (), the power supply state of described UPS unit is that all Power handling modules of this UPS unit are all in running order, and the dormant state of described UPS unit is that at least one Power handling modules of this UPS unit is closed or standby;
C current at least one UPS unit being in power supply state is closed as dormant state by ().
In the intelligent parallel operation method for controlling power supply of uninterrupted power source of the present invention, described present load attribute is current total load power, described first pre-conditioned for being in the actual loading rate of the UPS unit of power supply state more than the first POL in ups system, described second pre-conditioned for being in the actual loading rate of the UPS unit of power supply state less than the second POL in ups system, comprise before described step (a): set the first POL and the second POL, described step (a) comprising:
(a1) according to described total load power calculation, each is in the average load power of the UPS unit of power supply state, and according to the actual loading rate of described average load power calculation UPS unit;
(a2) judge whether described actual loading rate is greater than the first POL, and perform step (b) when described actual loading rate is greater than the first POL, otherwise perform step (a3);
(a3) judge whether described actual loading rate is less than the second POL, and perform step (c) when described actual loading rate is less than the second POL, otherwise return step (a1).
In the intelligent parallel operation method for controlling power supply of uninterrupted power source of the present invention, also comprise before described step (a): the UPS unit redundancy number of units N1 of setting ups system, and this N1 is more than or equal to zero;
Calculated the average load power P avg of UPS unit by following calculating formula in described step (a1):
Pavg＝Psys/(N2-N1)，
Wherein Psys is the total load power of ups system, and N2 is total number of units of the UPS unit being in power supply state.
In the intelligent parallel operation method for controlling power supply of uninterrupted power source of the present invention, each UPS unit has a priority; In described step (b), UPS unit the highest for the current UPS unit medium priority being in dormant state is waken up as power supply state, and the priority this waken up for the UPS unit of power supply state be set to current be in the UPS unit of power supply state minimum; In described step (c), UPS unit the highest for the current UPS unit medium priority being in power supply state is closed as dormant state, and by this closedown be the priority of the UPS unit of dormant state be set to current be in the UPS unit of dormant state minimum.
In the intelligent parallel operation method for controlling power supply of uninterrupted power source of the present invention, described method for controlling power supply comprises: the dormancy rotation time arranging UPS unit, and by the highest for priority and be in the UPS unit that power supply state reaches described dormancy rotation time continuously and close as dormant state, will dormant state be in and the highest UPS unit of priority wakes up as power supply state simultaneously.
The intelligent parallel operation electric power supply control system of uninterrupted power source of the present invention and method, the load attribute according to ups system wakes or closes UPS unit up, significantly can reduce the operation cost of machine room, economize energy while improving ups system security of operation.Further, the present invention also wakes up according to priority or closes UPS unit, thus balances the working time of each UPS unit, extends the mission life of each UPS unit.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of existing UPS parallel computer system.
Fig. 2 is the schematic diagram of uninterrupted power source of the present invention intelligent parallel operation electric power supply control system embodiment.
In Fig. 3 Fig. 2, hysteresis curves is held in the load of the intelligent parallel operation electric power supply control system of uninterrupted power source.
Fig. 4 is the schematic flow sheet of uninterrupted power source of the present invention intelligent parallel operation method for controlling power supply embodiment.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
In order to improve ups system reliability of operation and reduce the mass energy waste that ups system runs under low load factor, under keeping ups system to operate in a rational load factor, the present invention is by the size automatically according to the current total load of ups system, under the due redundant power supply ability of guarantee ups system, determine the number of units of the UPS unit put into operation, automatically wake (namely opening) up or close (i.e. dormancy), even multiple UPS unit, under making ups system operate in a rational load factor, to improve the safety and reliability of ups system operation and to realize energy-conservation object.
As shown in Figure 2, it is the schematic diagram of uninterrupted power source of the present invention intelligent parallel operation electric power supply control system embodiment, its can be applicable to comprise multiple UPS unit ups system and for realizing power supply control (above-mentioned UPS unit can be positioned at same rack, also can be positioned at different rack).It is one or more that each UPS unit in this ups system comprises in following Power handling modules: rectifier, inverter, charger, bypass module etc. (it should be explicitly made clear at this point, the concrete structure of UPS unit does not limit this, is only herein and illustrates).
Electric power supply control system in the present embodiment comprises load detecting unit 21, wakes control module 22 up, closing control unit 23, and wherein load detecting unit 21 is for detecting the present load attribute of ups system; Wake up control module 22 for present load attribute meet first pre-conditioned time, dormant state (i.e. non-inversion power supply state is in by current, now UPS unit at least one Power handling modules close) UPS unit at least one UPS unit wake up (namely the UPS unit being in dormant state being opened to inversion power supply state) for power supply state (i.e. inversion power supply state, now all Power handling modules of UPS unit standby or work); Closing control unit 23 for meet at present load attribute second pre-conditioned time, be at least one UPS unit in the UPS unit of power supply state close current as dormant state.
The intelligent parallel operation electric power supply control system of above-mentioned uninterrupted power source, can avoid ups system to carry the appearance of too low load running operating mode for a long time, thus not only achieve the object of energy efficiency, also improve the operational reliability of whole data center machine room electric power system.From reliability of operation, the intelligent parallel operation electric power supply control system of above-mentioned uninterrupted power source exits by making unnecessary UPS unit dormancy, decreases the number of units of real time execution UPS unit in ups system, the continuous operation stability of ups system is significantly improved; Further, by making unnecessary UPS unit dormancy exit, also can improve ups system band and carrying rate, decrease the risk of ups system vibration; In addition, be in the UPS unit of dormant state compared with normally running the UPS unit of (being namely in power supply state), himself life-span is also significantly improved; And can ensure when load changes by the UPS unit waken up in dormancy, ups system is in best load operation conditions all the time.
The power supply state of UPS unit is that all Power handling modules of this UPS unit are all in running order, the dormant state of UPS unit is that at least one Power handling modules of this UPS unit is closed or standby (such as rectifier opens that inverter simultaneously cuts out, the rectifier block standby or rectifier block inverter closedown simultaneously of inverter simultaneously etc., the energy-saving effect that rectifier and inverter are all closed is best, but follow-up wake up to inversion power supply station need start-up time the longest; The start-up time that the while that rectifier being opened, inverter standby wakeup needs to inversion power supply station is the shortest, but energy-saving effect is relatively poor).In a particular application, according to the load characteristic of actual field and requirement, suitable UPS unit dormant state mode can be selected.
Especially, above-mentioned present load attribute is current total load power, and the first pre-conditioned actual loading rate that can be in ups system the UPS unit being in power supply state is more than the first POL; Correspondingly, the second pre-conditioned actual loading rate that can be in ups system the UPS unit being in power supply state is less than the second POL.Above-mentioned electric power supply control system also can comprise POL setup unit for inputting setting first POL and the second POL according to user.
Now, wake control module 22 up and closing control unit 23 includes load factor computation subunit, this load computation subunit is used for detecting according to load detecting unit the current total load power obtained, calculate the average load power that each is in the UPS unit of power supply state, and according to the actual loading rate of average load power calculation UPS unit.Wake control module 22 up when above-mentioned actual loading rate is greater than the first POL, current at least one UPS unit be in the UPS unit of dormant state is waken up as power supply state.Current at least one UPS unit be in the UPS unit of power supply state, when actual loading rate is less than the second POL, is closed as dormant state by closing control unit 23.
Certainly, in actual applications, first is pre-conditioned and second pre-conditioned also such as, by other indexs, DC bus current etc.When waking and close UPS unit up, wake control module 22 and closing control unit 23 up and first can calculate the quantity needing the UPS unit waking up or close, then wake or close the UPS unit of respective amount once up.In addition, wake control module 22 up and closing control unit 23 also can wake at every turn or close a UPS unit up, then again total load power is detected by load detecting unit 21, and by waking control module 22 up and closing control unit 23 again wakes up according to testing result or closes a UPS unit.
Owing to entering the second POL of dormant state, and the first POL entering power supply state affects the direct parameter that in ups system operation, each UPS unit enters dormant state and is waken up, the first POL when therefore waking up and should existing between the second POL entering dormant state certain " holding hysteresis curves △ P ", for N+1 redundancy ups system, its load is held hysteresis curves and can be represented with Fig. 2." hold hysteresis curves △ P " can effectively prevent when load upgrade conversion point, and in ups system, the dormancy or wake up continually of UPS unit, ensures the stability of system cloud gray model.During the actual use of ups system, computer lab management person can preset above-mentioned first POL and the second POL two load parameters according to the feature of machine room charge capacity change, under loading condition during to ensure Different periods or period, high security can both be obtained, the power supply of high reliability, and realize energy-conservation object.
For this reason, above-mentioned electric power supply control system also can comprise redundancy setup unit, for setting the UPS unit redundancy number of units N1 (this N1 is more than or equal to zero, specifically can set as required) of ups system.Now, the load factor computation subunit waking control module 22 and closing control unit 23 up calculates the average load power P avg of UPS unit by following calculating formula:
Pavg＝Psys/(N2-N1)，
Wherein Psys is the total load power of ups system, and N2 is total number of units of the UPS unit being in power supply state.
In order to ensure that in ups system, each UPS unit can play a role fully, extends the mission life of each UPS unit, the intelligent parallel operation electric power supply control system of above-mentioned uninterrupted power source can selectively wake or close UPS unit up, instead of simply carries out dormancy and wake up.Particularly, all participate in dormancy by allowing all UPS unit in ups system and wake up (carrying out dormancy if only fix certain UPS unit and wake up, affecting the whole ups system life-span by causing the degree of aging of each UPS unit in ups system inconsistent).
The intelligent parallel operation electric power supply control system of above-mentioned uninterrupted power source is by giving different numberings for each UPS unit, and make each UPS unit in ups system have different priority, when needs enter park mode and awakening mode, wake control module 22 up and closing control unit 23 is all operate according to the priority of each UPS unit, high being introduced into of priority, enters and is set to minimum by this machine priority simultaneously afterwards.Namely wake up control module 22 total load power meet first pre-conditioned time, UPS unit the highest for the current UPS unit medium priority being in dormant state is waken up as power supply state, and the priority this waken up for the UPS unit of power supply state be set to current be in the UPS unit of power supply state minimum; Closing control unit 23 total load meet second pre-conditioned time, UPS unit the highest for the current UPS unit medium priority being in power supply state is closed as dormant state, and by this closedown be the priority of the UPS unit of dormant state be set to current be in the UPS unit of dormant state minimum.
In addition, also by the use of each UPS unit in rotation mechanism further balance ups system, the intelligent parallel operation electric power supply control system of above-mentioned uninterrupted power source can comprise rotation control module, for by the highest for priority and be in the UPS unit that power supply state reaches dormancy rotation time continuously and close as dormant state, dormant state will be in and the highest UPS unit of priority wakes up as power supply state simultaneously.
Certainly, in actual applications, as the foundation calculating the number of units of UPS unit put into operation, namely present load attribute is except when front total load power, can also be any one or more in size of current, active power size, reactive power size, applied power size etc.
As shown in Figure 4, it is the schematic flow sheet of uninterrupted power source of the present invention intelligent parallel operation method for controlling power supply embodiment, for realizing the power supply control of ups system, it is one or more that each UPS unit wherein in this ups system comprises in following Power handling modules: inverter, bypass module, rectifier and charger etc. (it should be explicitly made clear at this point, the concrete structure of UPS unit does not limit this, is only herein and illustrates); This method for controlling power supply comprises the following steps:
Step S41: the present load attribute detecting ups system.
Step S42: judge that whether above-mentioned present load attribute meets first pre-conditioned, and present load attribute meet first pre-conditioned be time perform step S43, otherwise perform step S44.
Step S43: current at least one UPS unit be in the UPS unit of dormant state is waken up as power supply state, then returns step S41.
The power supply state of above-mentioned UPS unit is that all Power handling modules of this UPS unit are all in running order, and the dormant state of UPS unit is that at least one Power handling modules of this UPS unit is closed or standby (such as rectifier opens that inverter simultaneously cuts out, the rectifier block standby or rectifier block inverter closedown simultaneously of inverter simultaneously etc.).
Step S44: judge that whether above-mentioned present load attribute meets second pre-conditioned, and present load attribute meet second pre-conditioned be time perform step S45, otherwise return step S41.
Step S45: current at least one UPS unit be in the UPS unit of power supply state is closed as dormant state, then returns step S41.
Above-mentioned present load attribute is current total load power, the first pre-conditioned actual loading rate being specifically as follows in ups system the UPS unit being in power supply state is more than the first POL, the second pre-conditioned actual loading rate being specifically as follows in ups system the UPS unit being in power supply state is less than the second POL, and also comprise in said method: set the first POL and the second POL, step S42 comprises: according to total load power calculation, each is in the average load power of the UPS unit of power supply state, and according to the actual loading rate of average load power calculation UPS unit, judge whether actual loading rate is greater than the first POL, and perform step S43 when described actual loading rate is greater than the first POL, step S44 comprises: according to total load power calculation, each is in the average load power of the UPS unit of power supply state, and according to the actual loading rate of average load power calculation UPS unit, judge whether actual loading rate is less than the second POL, and perform step S45 when actual loading rate is less than the second POL.
In addition, said method also comprises the UPS unit redundancy number of units N1 of setting ups system, and this N1 is more than or equal to zero; And the average load power P avg of UPS unit in the method, is calculated by following calculating formula:
Pavg＝Psys/(N2-N1)，
Wherein Psys is the total load power of ups system, and N2 is total number of units of the UPS unit being in power supply state.
Especially, each UPS unit above-mentioned has a priority; And in step S42, UPS unit the highest for the current UPS unit medium priority being in dormant state is waken up as power supply state, and the priority this waken up for the UPS unit of power supply state be set to current be in the UPS unit of power supply state minimum; In step S45, UPS unit the highest for the current UPS unit medium priority being in power supply state is closed as dormant state, and by this closedown be the priority of the UPS unit of dormant state be set to current be in the UPS unit of dormant state minimum.
Above-mentioned method for controlling power supply also can comprise: the dormancy rotation time arranging UPS unit, and by the highest for priority and be in this UPS unit that power supply state reaches described dormancy rotation time continuously and close as dormant state, will dormant state be in and the highest UPS unit of priority wakes up as power supply state simultaneously.
For the combining system of four UPS unit, system and method for the present invention is described below.
The load at tentation data center on-the-spot ups system (i.e. four combining systems) initial stage is more stable, and current total amount is only the capacity of, parallel operation application traditionally, so during four parallel operation work, the load factor of every platform UPS is 25%, for the 12 pulse UPS of certain serial 200KVA, the efficiency under this load factor is only about 85%.
If use control system of the present invention and method, and related setting parameter is as follows: redundancy number of units: 0 (load is more stable, can not need to set redundancy); Setting dormant state pattern is that rectifier and inverter are all closed; Second POL is 70%; First POL is 80%, and the operation numbering of each machine of ups system is respectively 1#, 2#, 3#, 4#; Dormancy rotation time 1 month.For aforesaid load, electric power supply control system of the present invention can ensure the stable operation of system by only needing two UPS unit to devote oneself to work, and all the other two UPS unit are in dormant state, substantially do not consume electric energy.After one month, two the UPS unit being in dormant state can carry out rotation with two the UPS unit being in power supply state.
Like this, the load factor of every platform UPS unit will reach about 50%, and for 12 pulse UPS unit, its corresponding efficiency also brings up to about 90%.This means traditionally UPS parallel operation mode operation time, about have the power of 2* (90%-85%) * 200KVA*0.9+2* (1-85%) * 200KVA*0.9=72KW to be wasted, and reduce by half in the serviceable life of ups system.
If when charge capacity is increased to 1.6 times of single-machine capacities, a UPS unit will be had reawake, now have three UPS unit to be in power supply state in ups system, a UPS unit is in dormant state, and the load factor that every platform is in the UPS unit of power supply state will reach about about 53%.
The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (10)
1. the intelligent parallel operation electric power supply control system of uninterrupted power source, for realizing the power supply control of ups system, described ups system comprises multiple UPS unit and each UPS unit comprises at least one Power handling modules, it is characterized in that: described electric power supply control system comprises load detecting unit, wakes control module up, closing control unit, wherein: described load detecting unit, for detecting the present load attribute of ups system; Describedly wake control module up, for meet at described present load attribute first pre-conditioned time, current at least one UPS unit be in the UPS unit of dormant state is waken up as power supply state; Described closing control unit, for meet at present load attribute second pre-conditioned time, be at least one UPS unit in the UPS unit of power supply state close as dormant state by current; The power supply state of described UPS unit is that all Power handling modules of this UPS unit are all in running order, and the dormant state of described UPS unit is that at least one Power handling modules of this UPS unit is closed or standby.
2. the intelligent parallel operation electric power supply control system of uninterrupted power source according to claim 1, it is characterized in that: described present load attribute is current total load power, described electric power supply control system also comprises: POL setup unit, for setting the first POL and the second POL; Describedly wake control module up and closing control unit comprises load factor computation subunit respectively, for according to described total load power calculation, each is in the average load power of the UPS unit of power supply state, and according to the actual loading rate of described average load power calculation UPS unit; Described first pre-conditioned for being in the actual loading rate of the UPS unit of power supply state more than the first POL in ups system, described second is pre-conditionedly in the actual loading rate of the UPS unit of power supply state less than the second POL in ups system.
3. the intelligent parallel operation electric power supply control system of uninterrupted power source according to claim 2, it is characterized in that: described electric power supply control system also comprises redundancy setup unit, for setting the UPS unit redundancy number of units N1 of ups system, and this N1 is more than or equal to zero; Described load factor computation subunit calculates the average load power P avg of UPS unit by following calculating formula:
Pavg＝Psys/(N2-N1)，
Wherein Psys is the total load power of ups system, and N2 is total number of units of the UPS unit being in power supply state.
4. the intelligent parallel operation electric power supply control system of uninterrupted power source according to claim 1, is characterized in that: UPS unit described in each has a priority; Described wake up control module described present load attribute meet first pre-conditioned time, UPS unit the highest for the current UPS unit medium priority being in dormant state is waken up as power supply state, and the priority this waken up for the UPS unit of power supply state be set to current be in the UPS unit of power supply state minimum; Described closing control unit described total load meet second pre-conditioned time, UPS unit the highest for the current UPS unit medium priority being in power supply state is closed as dormant state, and by this closedown be the priority of the UPS unit of dormant state be set to current be in the UPS unit of dormant state minimum.
5. the intelligent parallel operation electric power supply control system of uninterrupted power source according to claim 4, it is characterized in that: described electric power supply control system comprises rotation control module, for the highest and be in the UPS unit that power supply state reaches dormancy rotation time continuously and close as dormant state in priority, dormant state will be in and the highest UPS unit of priority wakes up as power supply state simultaneously.
6. the intelligent parallel operation method for controlling power supply of uninterrupted power source, for realizing the power supply control of ups system, described ups system comprises multiple UPS unit and each UPS unit comprises at least one Power handling modules; It is characterized in that: described method for controlling power supply comprises the following steps:
A () detects the present load attribute of ups system, and described present load attribute meet first pre-conditioned time perform step (b), meet second pre-conditioned time perform step (c);
B current at least one UPS unit being in dormant state wakes up as power supply state by (), the power supply state of described UPS unit is that all Power handling modules of this UPS unit are all in running order, and the dormant state of described UPS unit is that at least one Power handling modules of this UPS unit is closed or standby;
C current at least one UPS unit being in power supply state is closed as dormant state by ().
7. the intelligent parallel operation method for controlling power supply of uninterrupted power source according to claim 6, it is characterized in that: described present load attribute is current total load power, described first pre-conditioned for being in the actual loading rate of the UPS unit of power supply state more than the first POL in ups system, described second pre-conditioned for being in the actual loading rate of the UPS unit of power supply state less than the second POL in ups system, comprise before described step (a): set the first POL and the second POL, described step (a) comprising:
(a1) according to described total load power calculation, each is in the average load power of the UPS unit of power supply state, and according to the actual loading rate of described average load power calculation UPS unit;
(a2) judge whether described actual loading rate is greater than the first POL, and perform step (b) when described actual loading rate is greater than the first POL, otherwise perform step (a3);
(a3) judge whether described actual loading rate is less than the second POL, and perform step (c) when described actual loading rate is less than the second POL, otherwise return step (a1).
8. the intelligent parallel operation method for controlling power supply of uninterrupted power source according to claim 7, it is characterized in that: also comprise before described step (a): the UPS unit redundancy number of units N1 of setting ups system, and this N1 is more than or equal to zero;
Calculated the average load power P avg of UPS unit by following calculating formula in described step (a1):
Pavg＝Psys/(N2-N1)，
Wherein Psys is the total load power of ups system, and N2 is total number of units of the UPS unit being in power supply state.
9. the intelligent parallel operation method for controlling power supply of uninterrupted power source according to claim 6, is characterized in that: each UPS unit has a priority; In described step (b), UPS unit the highest for the current UPS unit medium priority being in dormant state is waken up as power supply state, and the priority this waken up for the UPS unit of power supply state be set to current be in the UPS unit of power supply state minimum; In described step (c), UPS unit the highest for the current UPS unit medium priority being in power supply state is closed as dormant state, and by this closedown be the priority of the UPS unit of dormant state be set to current be in the UPS unit of dormant state minimum.
10. the intelligent parallel operation method for controlling power supply of uninterrupted power source according to claim 9, it is characterized in that: described method for controlling power supply comprises: the dormancy rotation time that UPS unit is set, and by the highest for priority and be in the UPS unit that power supply state reaches described dormancy rotation time continuously and close as dormant state, will dormant state be in and the highest UPS unit of priority wakes up as power supply state simultaneously.
Priority Applications (1)
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| CN105763337A (en) * | 2016-03-29 | 2016-07-13 | 杭州华三通信技术有限公司 | Power supply method and device |
| CN106356981A (en) * | 2015-07-14 | 2017-01-25 | 善元科技股份有限公司 | Backup power supply and energy-saving method for the same to operate in cold redundancy mode |
| CN109286198A (en) * | 2018-10-29 | 2019-01-29 | 深圳市伊力科电源有限公司 | UPS energy storage control method and system |
| CN109391027A (en) * | 2018-10-31 | 2019-02-26 | 漳州科华技术有限责任公司 | Data center's power supply system energy-saving control method and terminal device |
| CN110266101A (en) * | 2019-06-24 | 2019-09-20 | 科华恒盛股份有限公司 | Power supply system, method for controlling power supply and the power supply control apparatus of data center |
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| CN112106051A (en) * | 2018-01-11 | 2020-12-18 | 兰西姆有限责任公司 | Method and system for dynamic power delivery to a flexible data center using unutilized energy sources |
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| CN109391027A (en) * | 2018-10-31 | 2019-02-26 | 漳州科华技术有限责任公司 | Data center's power supply system energy-saving control method and terminal device |
| CN110266101A (en) * | 2019-06-24 | 2019-09-20 | 科华恒盛股份有限公司 | Power supply system, method for controlling power supply and the power supply control apparatus of data center |
| CN110474420A (en) * | 2019-07-22 | 2019-11-19 | 漳州科华技术有限责任公司 | Control method, control device and the controlling terminal of multi-standard uninterruptible power supply |
| CN111697556A (en) * | 2020-05-29 | 2020-09-22 | 科华恒盛股份有限公司 | Operation control method of electrical equipment and terminal equipment |
| CN112491283A (en) * | 2020-11-17 | 2021-03-12 | 公诚管理咨询有限公司 | Cloud control method based on IDC high-voltage direct-current power supply load optimization |
| CN114629220A (en) * | 2020-12-08 | 2022-06-14 | 施耐德电气It公司 | High-efficiency modularized uninterruptible power supply |
| CN113867195A (en) * | 2021-09-13 | 2021-12-31 | 科华数据股份有限公司 | Method, apparatus and storage medium for modular machine system control |
| CN114371775A (en) * | 2022-01-06 | 2022-04-19 | 北京京东乾石科技有限公司 | Dormancy control method and device, information acquisition system and cabinet |
| CN117406846A (en) * | 2023-12-13 | 2024-01-16 | 苏州元脑智能科技有限公司 | Power supply control method, device, computer equipment and storage medium |
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