CN105529699A - AC/DC device, power distribution system and control method thereof - Google Patents
AC/DC device, power distribution system and control method thereof Download PDFInfo
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Abstract
The invention relates to an AC/DC device, a power distribution system and a control method thereof. The AC/DC device is applied to the power distribution system. The power distribution system comprises an AC power supply, multiple loads, and at least one battery pack, wherein the AC power supply provides power for the multiple loads. The AC/DC device comprises at least one AC/DC module and a monitoring module, wherein the at least one AC/DC module is configured corresponding to at least one load in the multiple loads and the battery pack for converting AC outputted by the AC power supply into DC, and the DC and the battery pack are combined for providing power for the corresponding load; and the monitoring module is used for detecting the total output current of the AC power supply and accordingly sending an instruction to control the input power of the at least one AC/DC module to enable the total output power of the AC power supply to be not higher than a preset power. Based on the total output current of the AC power supply, the total output power of the AC power supply can be better controlled, and the AC power supply can be used high efficiently.
Description
Technical field
The present invention relates to power supply technique, more particularly, relate to a kind of AC/DC device, distribution system and control method thereof.
Background technology
As shown in Figure 1, for current distribution system is as the connection layout of AC power and load in machine room distribution system.Wherein, AC power 10 can be diesel generating set, for n the load supplying be connected with its output, as the first load 20-1, the second load 20-2 ... to the n-th load 20-n.This n load can be AC load.When configuring the power of diesel generating set, should be the certain multiple of load rating total capacity on the one hand by the capacity configuration of diesel generating set according to typical generating set design, general at about 2 times, also need on the other hand to consider that n load is simultaneously with the operating mode of maximum power work, to ensure the power supply that system is reliable and secure.But when major part, system is not with maximum power work, and diesel generating set causes the wasting of resources under being operated in very light load always.
Summary of the invention
The technical problem to be solved in the present invention is, for the defect that the power adaptive capacity of the AC power of existing distribution system is not strong, a kind of AC/DC device, distribution system and control method thereof are provided, when input power does not increase, by configuration AC/DC module and monitoring module thereof, improve the adaptive capacity of pulse power, and the continuity of the effectively power supply of increase system.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of AC/DC device, and in a power distribution system, described distribution system comprises AC power and the multiple loads by described ac power supply in application; Described distribution system also comprises at least one batteries; Described AC/DC device comprises:
At least one AC/DC module, with at least one load in described multiple load and at least one batteries described is corresponding configures, wherein each AC/DC module is used for the alternating current that described AC power exports to be converted to direct current, combines for corresponding load supplying with batteries;
Monitoring module, be connected with described AC/DC module, for detecting total output current of described AC power, and sending according to total output current of described AC power the input power that instruction controls at least one AC/DC module described, making the gross output of described AC power not higher than predetermined power.
According in AC/DC device of the present invention, described monitoring module is used for the total output current detecting described AC power when system starts, sending instruction when being less than set point and start at least one AC/DC module described, continuing when being not less than set point detect and judge whether to be less than set point.
According in AC/DC device of the present invention, described monitoring module also makes total output current of described AC power progressively increase for controlling at least one AC/DC module described after transmission instruction starts at least one AC/DC module described, and whether the total output current constantly detecting described AC power is less than set point, be send instruction and progressively increase its input power at least one AC/DC module described, total output current of described AC power is increased; Otherwise send instruction and progressively reduce its input power at least one AC/DC module described, total output current of described AC power is reduced.
According in AC/DC device of the present invention, described monitoring module is after transmission instruction starts at least one AC/DC module described, detect the dump energy of at least one batteries described, and sort successively from low to high, select one or more batteries that dump energy is minimum, increase the input power of the AC/DC module that batteries one or more with this is connected.
According in AC/DC device of the present invention, after at least one AC/DC module described in described monitoring module starts in transmission instruction, according to the priority assign input power of the load of each AC/DC model calling at least one AC/DC module described.
According in AC/DC device of the present invention, described AC/DC module specifically comprises:
AC/DC converting unit, is converted to direct current for the alternating current described AC power exported;
Electricity computing unit, for detecting the dump energy of the batteries be attached thereto, and sends to described monitoring module;
Charging control unit, for carrying out charge and discharge control to the batteries be attached thereto.
According in AC/DC device of the present invention, described AC/DC module also comprises flying power computing unit, for calculating the cruising time of the batteries be attached thereto, and sends to described monitoring module.
According in AC/DC device of the present invention, described AC/DC module is when exporting shock load, and the maximum instantaneous input power of input is no more than the K of output loading doubly, and 1<K<3.
According in AC/DC device of the present invention, described AC/DC module, after the shutdown of input voltage pathological system, automatically starts when input voltage recovers normal and restores electricity.
Present invention also offers a kind of distribution system, comprise foregoing AC/DC device.
According in distribution system of the present invention, described AC power is diesel engine generator or gasoline engine generator, or other have the AC power of output power limit.
Present invention also offers a kind of control method of distribution system, wherein distribution system comprises AC power and the multiple loads by described ac power supply; Described distribution system also comprises at least one batteries and at least one AC/DC module of configuring at least one load in described multiple load is corresponding, wherein each AC/DC module is used for the alternating current that described AC power exports to be converted to direct current, combines for corresponding load supplying with batteries;
Described control method comprises the following steps: the total output current detecting described AC power, and send according to total output current of described AC power the input power that instruction controls at least one AC/DC module described, make the gross output of described AC power not higher than predetermined power.
According in the control method of distribution system of the present invention, described control method specifically comprises the following steps: the total output current detecting described AC power when system starts, sending instruction when being less than set point and start at least one AC/DC module described, continuing when being not less than set point detect and judge whether to be less than set point.
According in the control method of distribution system of the present invention, described control method is further comprising the steps of: after transmission instruction starts at least one AC/DC module described, controlling at least one AC/DC module described makes total output current of described AC power progressively increase, and whether the total output current constantly detecting described AC power is less than set point, send instruction and progressively increase its input power at least one AC/DC module described, make total output current of described AC power, otherwise send instruction and progressively reduce its input power at least one AC/DC module described, total output current of described AC power is reduced.
According in the control method of distribution system of the present invention, described control method is further comprising the steps of: after transmission instruction starts at least one AC/DC module described, detect the dump energy of at least one batteries described, and sort successively from low to high, select one or more batteries that dump energy is minimum, increase the input power of the AC/DC module that batteries one or more with this is connected.
According in the control method of distribution system of the present invention, described control method is further comprising the steps of: after transmission instruction starts at least one AC/DC module described, according to the priority assign input power of the load of each AC/DC model calling at least one AC/DC module described.Implement AC/DC device of the present invention, distribution system and control method thereof, there is following beneficial effect: the present invention is by detecting total output current of AC power, and send the input power that instruction controls each AC/DC module on this basis, make the gross output of described AC power not higher than rated power, reasonably be assigned with the input power of each AC/DC module, ensure that AC power is as the efficiency utilization of diesel engine generator, ensure that the reliable power supply of load simultaneously.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the connection layout of current distribution system as AC power and load in machine room distribution system;
Fig. 2 is the module frame chart of the preferred embodiment according to distribution system of the present invention;
Fig. 3 is the schematic diagram of AC/DC module in AC/DC device according to the preferred embodiment of the invention;
Fig. 4 is the particular flow sheet of the control method of distribution system according to the preferred embodiment of the invention.
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.
The invention provides a kind of AC/DC device, its application in a power distribution system.The present invention is also corresponding provides a kind of distribution system using this AC/DC device.Below in conjunction with Fig. 2 to AC/DC device of the present invention and use this AC/DC device distribution system to be described in detail.As shown in Figure 2, this distribution system comprises AC power 10, and multiple loads of being powered by AC power 10, if the first load 20-1 in Fig. 2 is to m+n load 20-m+n.Wherein, AC power 10 can be diesel generating set or gas-liquid-liquid three-phase flow, or other have the AC power of output power limit.This distribution system also comprises at least one batteries.AC/DC device of the present invention comprises monitoring module (not shown) and at least one AC/DC module.This at least one AC/DC module and at least one load in multiple loads of AC/DC device and at least one batteries is corresponding configures.
Such as, for at least one load correspondence in multiple load is configured with AC/DC module and batteries in this distribution system, as be m load configuration in Fig. 2 AC/DC module and batteries, these loads are called as the second load group, comprise the first load 20-1, the second load 20-2 ..., m load 20-m.Correspondingly, remaining load is called as the first load group, comprise m+1 load 20-m+1, m+2 load 20-m+2 ..., m+n load 20-m+n.In the present invention, in the second load group, each load correspondence is configured with AC/DC module and batteries.As for first load 20-1 configure an AC/DC module 30-1 and the first batteries 40-1, be the 2nd AC/DC module 30-2 and the second batteries 40-2 of the second load 20-2 configuration,, be mAC/DC module 30-m and the m batteries 40-m of m batteries 40-m configuration.Wherein, AC/DC module is used for the alternating current that AC power 10 exports to be converted to direct current.System operationally, can control the AC/DC module for power supply that the load in the second load group is configured by correspondence, or the batteries configured by correspondence is powered, or combines power supply by AC/DC module and batteries.Load in second load group can comprise uninterrupted power supply and power consumption equipment.
In the present invention, monitoring module is connected with each AC/DC module, detect total output current of AC power 10, and send according to total output current of this AC power 10 input power that instruction controls at least one AC/DC module aforementioned, make the gross output of AC power 10 not higher than predetermined power.This predetermined power is a numerical value a little less than AC power rated power.AC/DC module as shown in Figure 2, these modules have AC/DC mapping function, according to the instruction control inputs power of monitoring module, thus can reach the effect of the gross output controlling AC power 10.The input of each AC/DC module is connected to the ac output end of AC power 10 such as diesel engine generator, monitoring module is by detecting total output current of AC power 10 as the electric current at A point place in Fig. 2, determine whether that transmission instruction starts the AC/DC module in the second load group on this basis, and after starting AC/DC module, detect total output current of AC power in real time, and the control realized on this basis each AC/DC module input power, such as by the input current of each AC/DC module of adjustment, carry out the electric current at B point place in control chart 2, because the electric current at C point place is constant, just can realize the control to whole AC power 10 gross output.
Particularly, monitoring module is connected to the ac output end of AC power 10, for detecting total output current of AC power 10 when system starts, sends instruction start each AC/DC module when being less than set point.In a preferred embodiment of the invention, each AC/DC module can be started simultaneously, also can start each AC/DC module one by one.Therefore, if total output current of AC power 10 is larger when system starts, when being namely not less than set point, each AC/DC module in second load group does not start, load in second load group can be powered by the batteries be connected, and then total output current that can control AC power 10 is unlikely to exceed predetermined power.If total output current of AC power 10 is less when system starts, when being namely greater than set point, AC power 10 to have the ability by each AC/DC module, to the load supplying in the second load group, therefore can start each AC/DC module.Now, each AC/DC module can combine batteries is load supplying together.
Monitoring module, after transmission instruction starts each AC/DC module, can control each AC/DC module and increase its input power, total output current of AC power 10 progressively be increased, exceedes predetermined power to avoid the gross output of AC power 10 to uprush.Whether the total output current simultaneously constantly detecting AC power 10 is less than set point, send instruction and progressively increase its input power to each AC/DC module, total output current of AC power 10 is increased, otherwise send instruction and progressively reduce its input power to each AC/DC module, total output current of AC power 10 is reduced.That is, this control procedure must meet the gross output of AC power 10 not higher than the requirement of set point.Preferably, this control procedure also needs to meet another controlled condition, namely after the input power of each AC/DC module increases, except the requirement of the load of satisfied connection, also must meet the charging current multiplying power requirement of the batteries be attached thereto, namely can not be greater than the preset charged current ratio of batteries.In a preferred embodiment of the invention, monitoring module by the random input power reducing one or more AC/DC module in each AC/DC module, and then can reduce total output current of AC power 10.In another preferred embodiment of the invention, monitoring module also by the average input power reducing each AC/DC module, and then can reduce total output current of AC power 10.
In a preferred embodiment of the invention, after each AC/DC module starts, can combine batteries is load supplying together.Now, the charging and discharging state of batteries can be controlled according to actual conditions.Monitoring module of the present invention when adjusting the input power of each AC/DC module, the principle that can keep in balance.Monitoring module can collect the output current state of each AC/DC module, and the input current state of the load be attached thereto, when controlling the input power of each AC/DC module, the output current of preferential guarantee AC/DC module is more than or equal to the input current of load, ensures that battery unduly discharges.That is, if when the predetermined power of AC power 10 can meet institute's loaded demand, by balancing the input power of each AC/DC module, starting storage battery group is not powered as far as possible.Further, if the predetermined power of AC power 10 can not only meet loaded demand, when also having unnecessary power, AC/DC module can be charged for the batteries be attached thereto.If when the predetermined power of AC power 10 can not meet institute's loaded demand, monitoring module control AC/DC module starts the batteries connected and combines power supply.
If start batteries in system to combine power supply with AC/DC module, monitoring module of the present invention can also confirm according to the dump energy of each batteries the input power how adjusting the AC/DC module that this batteries connects.After each AC/DC module starts, detect the dump energy of each batteries, and sort successively from low to high, select one or more batteries that dump energy is minimum, increase the input power of the AC/DC module that batteries one or more with this is connected.Such as, the batteries that dump energy can be selected minimum, as detected that the dump energy of the first batteries 40-1 is minimum by an AC/DC module 30-1, the input current that monitoring module can control an AC/DC module 30-1 increases, to ensure the safe and reliable operation of the first load 20-1.Again such as, two batteries that dump energy can be selected minimum, increase the input power of the AC/DC module be connected to these two batteries.The present invention is by the scheduling of centralized monitor module, reasonably be assigned with the input power of each AC/DC module, ensure that the storage battery in whole distribution system plays maximized utilance, realize, to the efficiency utilization of AC power 10 as diesel engine generator, ensure that reliable power supply simultaneously.
In the present invention, monitoring module, can also according to the priority assign input power of the load of AC/DC model calling each in these AC/DC modules after transmission instruction starts AC/DC module.That is, system can also arrange the importance of each DC load, preferentially can ensure the continuous power supply of important load, for the load that priority is lower, can the gross output of AC power equal or close to rated value time, control the AC/DC module that the load lower with priority be connected and reduce input power, ensure the power supply of the AC/DC module that the load that priority is high connects.
Referring to Fig. 3, is the schematic diagram of AC/DC module in AC/DC device according to the preferred embodiment of the invention.As shown in Figure 3, in this embodiment, AC/DC module 30 at least comprises: AC/DC converting unit 31 and electricity computing unit 32.
Wherein, AC/DC converting unit 31 is converted to direct current for alternating current AC power 10 exported.Electricity computing unit 32 for detecting the dump energy of the batteries be attached thereto, and sends to monitoring module.
This AC/DC module 30 can further include charging control unit 33, for carrying out charge and discharge control to the batteries be attached thereto.
In a preferred embodiment of the invention, this AC/DC module 30 can further include flying power computing unit, for calculating the cruising time of the batteries be attached thereto, and sends to monitoring module.In addition, this AC/DC module 30 can also have following characteristics:
1) when voltage and frequency can start in certain normal range (NR), even if voltage and frequency change rate are very high also can ensure stable power output.
2) when input voltage transient state is fallen, there is the ability of restriction power output;
3) when exporting shock load, the maximum instantaneous input power of input is no more than the K of output loading doubly.Usual 1<K<3.
4) when after the shutdown of input voltage pathological system, restore electricity when input voltage recovery normal system can normally start.Present invention also offers a kind of control method of distribution system, wherein distribution system multiple loads of comprising AC power 10 and being powered by AC power 10, if the first load 20-1 in Fig. 2 is to m+n load 20-m+n.In multiple load, at least one load correspondence is configured with AC/DC module and batteries, and wherein AC/DC module is used for the alternating current that AC power 10 exports to be converted to direct current, is the load supplying connected.This load also can be powered separately by batteries, or combines power supply by AC/DC module and batteries.The control method of distribution system of the present invention comprises the following steps: the total output current detecting AC power 10, and send according to total output current of AC power 10 input power that instruction controls each AC/DC module, make the gross output of AC power not higher than predetermined power.This predetermined power is a numerical value a little less than AC power rated power.Such as, system can by detecting total output current of AC power as the electric current at A point place in Fig. 2, determine whether that transmission instruction starts the AC/DC module in the second load group on this basis, and after starting AC/DC module, detect total output current of AC power in real time, and the control realized on this basis each AC/DC module input power, such as by the input current of each AC/DC module of adjustment, carry out the electric current at B point place in control chart 2, and then realize the control to whole AC power 10 gross output.
In the present invention, the product of AC/DC device can adopt multiple encapsulation and type of service.Such as monitoring module can be built in each AC/DC module, and communication realizes overall control mutually in use.This monitoring module also independent of the total monitoring module of AC/DC module as this distribution system, can control all AC/DC modules.
Referring to Fig. 4, is the particular flow sheet of the control method of distribution system according to the preferred embodiment of the invention.As shown in Figure 4, the control method of distribution system that this embodiment provides specifically comprises the following steps:
First, in step S401, system starts.
Subsequently, in step S402, detect total output current of AC power 10.
Subsequently, in step S403, judge whether total output current of AC power 10 is less than set point, is go to step S404; Otherwise go to step S402 to continue detect and judge whether total output current of AC power 10 is less than set point.
Subsequently, in step s 404, send instruction and start each AC/DC module; In a preferred embodiment of the invention, each AC/DC module can be started simultaneously, also can start each AC/DC module one by one.Therefore, if total output current of AC power 10 is larger when system starts, when being namely not less than set point, each AC/DC module in second load group does not start, load in second load group can be powered by the batteries be connected, and then total output current that can control AC power 10 is unlikely to exceed predetermined power.If total output current of AC power 10 is less when system starts, when being namely greater than set point, AC power 10 to have the ability by each AC/DC module, to the load supplying in the second load group, therefore can start each AC/DC module.Now, each AC/DC module can separately to the load supplying be attached thereto, and also can combine batteries is load supplying together.
Subsequently, in step S405, after transmission instruction starts each AC/DC module, control each AC/DC module and total output current of AC power is progressively increased, exceed predetermined power to avoid the gross output of AC power 10 to uprush.This step is when increasing total output current of AC power, also another controlled condition of demand fulfillment, namely after the input power of each AC/DC module increases, except for except load supplying, also must meet the charging current multiplying power requirement of the batteries be attached thereto, namely can not be greater than the preset charged current ratio of batteries.
Subsequently, in step S406, whether the total output current detecting AC power is less than set point, is, goes to step S405 transmission instruction and progressively increases its input power to each AC/DC module, total output current of AC power is increased; Otherwise go to step S407.In a preferred embodiment of the invention, system by the random input power reducing one or more AC/DC module in each AC/DC module, and then can reduce total output current of AC power 10.In another preferred embodiment of the invention, system also by the average input power reducing each AC/DC module, and then can reduce total output current of AC power 10.
In a preferred embodiment of the invention, after each AC/DC module starts, it is load supplying together that system can control its associating batteries.Now, the charging and discharging state of batteries can be controlled according to actual conditions.In the control method of distribution system of the present invention when adjusting the input power of each AC/DC module, the principle that can keep in balance.The output current state of each AC/DC module can be collected in this control method, and the input current state of the load be attached thereto, when controlling the input power of each AC/DC module, the output current of preferential guarantee AC/DC module is more than or equal to the input current of load, ensures that battery unduly discharges.That is, if when the predetermined power of AC power 10 can meet institute's loaded demand, by balancing the input power of each AC/DC module, starting storage battery group is not powered as far as possible.Further, if the predetermined power of AC power 10 can not only meet loaded demand, when also having unnecessary power, AC/DC module can be charged for the batteries be attached thereto.If when the predetermined power of AC power 10 can not meet institute's loaded demand, Systematical control AC/DC module starts the batteries connected and combines power supply.
Subsequently, in step S 407, send instruction and progressively reduce its input power to each AC/DC module, the total output current of AC power is reduced, and go to step S406 and again detect.This flow process can terminate when system stops.
In abovementioned steps S407, if start batteries in system to combine power supply with AC/DC module, control method of the present invention can also confirm according to the dump energy of each batteries the input power how adjusting the AC/DC module that this batteries connects.After each AC/DC module starts, detect the dump energy of each batteries, and sort successively from low to high, select one or more batteries that dump energy is minimum, increase the input power of the AC/DC module that batteries one or more with this is connected.Such as, the batteries that dump energy can be selected minimum, as detected that the dump energy of the first batteries 40-1 is minimum by an AC/DC module 30-1, the input current that monitoring module can control an AC/DC module 30-1 increases, to ensure the safe and reliable operation of the first load 20-1.Again such as, two batteries that dump energy can be selected minimum, increase the input power of the AC/DC module be connected to these two batteries.Centralized dispatching is passed through in control method of the present invention, reasonably be assigned with the input power of each AC/DC module, ensure that the storage battery in whole distribution system plays maximized utilance, realize, to the efficiency utilization of AC power 10 as diesel engine generator, ensure that reliable power supply simultaneously.
Control method of the present invention, can also according to the priority assign input power of the load of AC/DC model calling each in these AC/DC modules after transmission instruction starts AC/DC module.That is, system can also arrange the importance of each DC load, preferentially can ensure the continuous power supply of important load, for the load that priority is lower, can the gross output of AC power equal or close to rated value time, control the AC/DC module that the load lower with priority be connected and reduce input power, ensure the power supply of the AC/DC module that the load that priority is high connects.Should explanatorily, in the present invention, AC power can be generator or other AC power, such as, effectively can reduce the configuration of cable, by reducing peak power, thus control the capacity of AC distribution cable, thus provide cost savings, improve the utilance of cable.
The present invention is described according to specific embodiment, but it will be understood by those skilled in the art that when not departing from the scope of the invention, can carry out various change and equivalent replacement.In addition, for adapting to specific occasion or the material of the technology of the present invention, can many amendments be carried out to the present invention and not depart from its protection range.Therefore, the present invention is not limited to specific embodiment disclosed herein, and comprises all embodiments dropping into claims.
Claims (16)
1. an AC/DC device, is characterized in that, in a power distribution system, described distribution system comprises AC power and the multiple loads by described ac power supply in application; Described distribution system also comprises at least one batteries; Described AC/DC device comprises:
At least one AC/DC module, with at least one load in described multiple load and at least one batteries described is corresponding configures, wherein each AC/DC module is used for the alternating current that described AC power exports to be converted to direct current, combines for corresponding load supplying with batteries;
Monitoring module, be connected with described AC/DC module, for detecting total output current of described AC power, and sending according to total output current of described AC power the input power that instruction controls at least one AC/DC module described, making the gross output of described AC power not higher than predetermined power.
2. AC/DC device according to claim 1, it is characterized in that, described monitoring module is used for the total output current detecting described AC power when system starts, sending instruction when being less than set point and start at least one AC/DC module described, continuing when being not less than set point detect and judge whether to be less than set point.
3. AC/DC device according to claim 2, it is characterized in that, described monitoring module also makes total output current of described AC power progressively increase for controlling at least one AC/DC module described after transmission instruction starts at least one AC/DC module described, and whether the total output current constantly detecting described AC power is less than set point, be send instruction and progressively increase its input power at least one AC/DC module described, total output current of described AC power is increased; Otherwise send instruction and progressively reduce its input power at least one AC/DC module described, total output current of described AC power is reduced.
4. AC/DC device according to claim 3, it is characterized in that, described monitoring module is after transmission instruction starts at least one AC/DC module described, detect the dump energy of at least one batteries described, and sort successively from low to high, select one or more batteries that dump energy is minimum, increase the input power of the AC/DC module that batteries one or more with this is connected.
5. AC/DC device according to claim 3, it is characterized in that, after at least one AC/DC module described in described monitoring module starts in transmission instruction, according to the priority assign input power of the load of each AC/DC model calling at least one AC/DC module described.
6. the AC/DC device according to any one of claim 1-5, is characterized in that, described AC/DC module specifically comprises:
AC/DC converting unit, is converted to direct current for the alternating current described AC power exported;
Electricity computing unit, for detecting the dump energy of the batteries be attached thereto, and sends to described monitoring module;
Charging control unit, for carrying out charge and discharge control to the batteries be attached thereto.
7. AC/DC device according to claim 6, is characterized in that, described AC/DC module also comprises flying power computing unit, for calculating the cruising time of the batteries be attached thereto, and sends to described monitoring module.
8. AC/DC device according to claim 6, is characterized in that, described AC/DC module is when exporting shock load, and the maximum instantaneous input power of input is no more than the K of output loading doubly, and 1<K<3.
9. AC/DC device according to claim 6, is characterized in that, described AC/DC module, after the shutdown of input voltage pathological system, automatically starts when input voltage recovers normal and restores electricity.
10. a distribution system, is characterized in that, comprises the AC/DC device according to any one of claim 1-9.
11. distribution systems according to claim 10, is characterized in that, described AC power is diesel engine generator or gasoline engine generator.
The control method of 12. 1 kinds of distribution systems, is characterized in that, described distribution system comprises AC power and the multiple loads by described ac power supply; Described distribution system also comprises at least one batteries and at least one AC/DC module of configuring at least one load in described multiple load is corresponding, wherein each AC/DC module is used for the alternating current that described AC power exports to be converted to direct current, combines for corresponding load supplying with batteries;
Described control method comprises the following steps: the total output current detecting described AC power, and send according to total output current of described AC power the input power that instruction controls at least one AC/DC module described, make the gross output of described AC power not higher than predetermined power.
The control method of 13. distribution systems according to claim 12, is characterized in that, described control method specifically comprises the following steps:
Detect total output current of described AC power when system starts, sending instruction when being less than set point and start at least one AC/DC module described, continuing when being not less than set point detect and judge whether to be less than set point.
The control method of 14. distribution systems according to claim 13, is characterized in that, described control method is further comprising the steps of:
After transmission instruction starts at least one AC/DC module described, controlling at least one AC/DC module described makes total output current of described AC power progressively increase, and whether the total output current constantly detecting described AC power is less than set point, send instruction and progressively increase its input power at least one AC/DC module described, make total output current of described AC power, otherwise send instruction and progressively reduce its input power at least one AC/DC module described, total output current of described AC power is reduced.
The control method of 15. distribution systems according to claim 14, it is characterized in that, described control method is further comprising the steps of: after transmission instruction starts at least one AC/DC module described, detect the dump energy of at least one batteries described, and sort successively from low to high, select one or more batteries that dump energy is minimum, increase the input power of the AC/DC module that batteries one or more with this is connected.
The control method of 16. distribution systems according to claim 14, it is characterized in that, described control method is further comprising the steps of: after transmission instruction starts at least one AC/DC module described, according to the priority assign input power of the load of each AC/DC model calling at least one AC/DC module described.
Priority Applications (10)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410506106.9A CN105529699B (en) | 2014-09-28 | 2014-09-28 | A kind of AC/DC devices, distribution system and its control method |
| AU2015311401A AU2015311401B2 (en) | 2014-09-01 | 2015-08-31 | Power supply system and method |
| US15/507,082 US10601246B2 (en) | 2014-09-01 | 2015-08-31 | Power supply system and method |
| EP18208295.8A EP3484015B1 (en) | 2014-09-01 | 2015-08-31 | Power supply system and method |
| EP15838675.5A EP3190682B1 (en) | 2014-09-01 | 2015-08-31 | Power supply system and method |
| EP18208993.8A EP3487035B1 (en) | 2014-09-01 | 2015-08-31 | Power supply system and method |
| PCT/CN2015/088525 WO2016034086A1 (en) | 2014-09-01 | 2015-08-31 | Power supply system and method |
| US16/391,830 US10637283B2 (en) | 2014-09-01 | 2019-04-23 | Power supply system and method |
| US16/391,903 US10637284B2 (en) | 2014-09-01 | 2019-04-23 | Power supply system and method |
| US16/391,853 US10658867B2 (en) | 2014-09-01 | 2019-04-23 | Power supply system and method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106972480A (en) * | 2017-04-25 | 2017-07-21 | 珠海格力电器股份有限公司 | Control method, the device and system of DC electrical system |
| WO2018099378A1 (en) * | 2016-11-30 | 2018-06-07 | 华为技术有限公司 | Modular ups and operation method thereof |
| CN109038778A (en) * | 2018-09-10 | 2018-12-18 | 广东电网有限责任公司 | The control system and its method of DC power supplier timing overload |
| WO2021135318A1 (en) * | 2019-12-31 | 2021-07-08 | 华为技术有限公司 | Control method and control apparatus for data center power supply apparatus |
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2014
- 2014-09-28 CN CN201410506106.9A patent/CN105529699B/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018099378A1 (en) * | 2016-11-30 | 2018-06-07 | 华为技术有限公司 | Modular ups and operation method thereof |
| US11245282B2 (en) | 2016-11-30 | 2022-02-08 | Huawei Technologies Co., Ltd. | Modular UPS and working method of modular UPS |
| CN106972480A (en) * | 2017-04-25 | 2017-07-21 | 珠海格力电器股份有限公司 | Control method, the device and system of DC electrical system |
| CN106972480B (en) * | 2017-04-25 | 2023-12-08 | 珠海格力电器股份有限公司 | Control method, device and system of direct current electrical system |
| CN109038778A (en) * | 2018-09-10 | 2018-12-18 | 广东电网有限责任公司 | The control system and its method of DC power supplier timing overload |
| WO2021135318A1 (en) * | 2019-12-31 | 2021-07-08 | 华为技术有限公司 | Control method and control apparatus for data center power supply apparatus |
| CN114221426A (en) * | 2019-12-31 | 2022-03-22 | 华为数字能源技术有限公司 | Control method and control device for power supply device in data center |
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| CN105529699B (en) | 2018-09-07 |
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