CN103368249A - System and method for uninterrupted power supply - Google Patents
System and method for uninterrupted power supply Download PDFInfo
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- CN103368249A CN103368249A CN2012100826277A CN201210082627A CN103368249A CN 103368249 A CN103368249 A CN 103368249A CN 2012100826277 A CN2012100826277 A CN 2012100826277A CN 201210082627 A CN201210082627 A CN 201210082627A CN 103368249 A CN103368249 A CN 103368249A
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Abstract
The application provides a system and a method for an uninterrupted power supply, wherein the system comprises a direct-current power supply which is connected with a direct-current distribution circuit and an alternating-current distribution circuit. The direct-current distribution circuit is connected with a rated-voltage direct-current output circuit via a rated-voltage direct-current generation circuit. The alternating-current distribution circuit is connected with a rated-voltage alternating-current output circuit via a rated-voltage alternating-current generation circuit. The system and the method provided by the application is capable of improving the conversion efficiency of electric energy, reducing single-point failure of power supply equipment, and reducing the loss caused by a low load rate of an equipment power supply.
Description
Technical field
The application relates to the technical field of machine room power supply, particularly relates to a kind of system of uninterrupted power supply power supply, and, a kind of method of uninterrupted power supply power supply.
Background technology
Along with the development of information technology, information technoloy equipment power consumption is more and more higher, improves the information technoloy equipment power consumption efficiency and seems more important than in the past.But traditional IT machine room adopts ups system (uninterruptible power supply/ uninterrupted power supply) power supply plan, electric energy need to be from the conversion of civil power through ups system, pass through again the conversion of information technoloy equipment power supply, convert at last the inner electricity consumption of information technoloy equipment to, namely change through two-stage, all passed through converting input power to fixed voltage galvanic process at ups system with information technoloy equipment inside.The UPS power supply plan that specifically can adopt with reference to traditional machine room shown in Figure 1:
1, inputs ups system when civil power and be converted to the first busbar voltage direct current by the first transformer rectifier circuit;
2, described the first busbar voltage direct current can supply the charge in batteries in the ups system, and transmission downwards is the alternating current output of 220V through the direct current transformation circuit conversion;
3, the information technoloy equipment of use alternating current can directly use the voltage of ups system output, and after using galvanic information technoloy equipment to need the second external transformer rectifier circuit to convert the 220V alternating current to second busbar voltage direct current, convert described the second busbar voltage direct current to the 12V direct current by the second direct current transformation circuit again, could be for IT DC installation and the inner DC installation of IT of rear end.Mainly there is the problem of the following aspects in the scheme of this existing employing ups system power supply:
(1) energy conversion efficiency is low.When giving the galvanic information technoloy equipment power supply of use, civil power need to be through just being power devices after UPS and the conversion of information technoloy equipment power supply two-stage, and most utilization rate of electrical are lower than 80%.
(2) Single Point of Faliure problem.Because ups system is to adopt concentration supply power, unified power devices to the back-end, in case UPS break down, will cause the rear end with all devices face outage.
(3) problem that information technoloy equipment power utilization rate is low, loss is large.Present information technoloy equipment mostly adopts self-powered mode, and the power supply of every information technoloy equipment all designs according to the mode that the equipment maximum load multiply by coefficient of safety, has so just caused the lower situation of information technoloy equipment power supply integrated load rate.The low low problem of power-supply device increase of investment and energy conversion efficiency that then can cause of load factor.
Therefore, those skilled in the art's problem in the urgent need to address is at present: the method that a kind of rack uninterrupted power supply electric power system and a kind of rack uninterrupted power supply are provided, in order to improve energy conversion efficiency, reduce the power supply unit Single Point of Faliure, and reduce the low loss that causes of device power supply (DPS) load factor.
Summary of the invention
The application's technical problem to be solved provides a kind of system of uninterrupted power supply power supply and the method for a kind of uninterrupted power supply power supply, in order to improve energy conversion efficiency, reduces the power supply unit Single Point of Faliure, and reduces the low loss that causes of information technoloy equipment power source loads rate.
In order to address the above problem, the application discloses a kind of system of uninterrupted power supply power supply, specifically can comprise:
Dc power supply is used for providing direct current;
The direct current distributor circuit is used for described direct current is distributed to rated voltage alternating current generative circuit and rated voltage direct current generative circuit;
The alternating current distributor circuit is used for when described alternating-current power supply is normal alternating current being distributed to rated voltage alternating current generative circuit and rated voltage direct current generative circuit;
Rated voltage direct current generative circuit, be used for alternating current or the direct current that receives is converted to first the first busbar voltage direct current, be converted to again the first rated voltage direct current, and when described alternating-current power supply is normal, the first busbar voltage direct current in described dc power supply path is switched to hot stand-by duty;
Rated voltage alternating current generative circuit, be used for alternating current or the direct current that receives is converted to first the second busbar voltage direct current, be converted to again the second rated voltage alternating current, and when described alternating-current power supply is normal, the second busbar voltage direct current in described dc power supply path is switched to hot stand-by duty;
Rated voltage direct current output circuit is used for exporting described the first rated voltage direct current to direct-flow electricity utilization apparatus;
Rated voltage alternating current output circuit is used for exporting described the second rated voltage alternating current to AC electric equipment.
Preferably, described rated voltage direct current generative circuit is provided with at least two, and described system can also comprise:
Supervising device is used for monitoring rated voltage direct current generative circuit job information, obtains the practical power Rate of average load, and according to the rated voltage direct current generative circuit of described practical power Rate of average load gating respective amount.
Preferably, described rated voltage direct current generative circuit can comprise:
Circuit is propped up in the first power factor correction, is used for the alternating current that receives is converted to the first busbar voltage direct current;
The first transformation is propped up circuit, is used for the direct current that receives is converted to the first busbar voltage direct current, and when alternating-current power supply is normal, and the first busbar voltage direct current in described dc power supply path is switched to hot stand-by duty;
Direct current transformation props up circuit, is used for converting described the first busbar voltage direct current to first rated voltage direct current; Wherein, described the first busbar voltage is higher than the first rated voltage.
Preferably, described the first power factor correction is propped up circuit and can be comprised:
The first filter unit: be used for the alternating current that receives is carried out filtering;
The first rectification unit: be used for described AC rectification through filtering is converted to the first busbar voltage direct current.
Preferably, described rated voltage alternating current generative circuit can comprise:
Circuit is propped up in the second power factor correction, is used for the alternating current that receives is converted to the second busbar voltage direct current;
The second transformation is propped up circuit, is used for the direct current that receives is converted to the second busbar voltage direct current, and when alternating-current power supply is normal, and the second busbar voltage direct current in described dc power supply path is switched to hot stand-by duty;
Ac converter props up circuit, is used for converting described the second busbar voltage direct current to second rated voltage alternating current; Wherein, described the second busbar voltage is higher than the second rated voltage.
Preferably, described the second power factor correction is propped up circuit and can be comprised:
The second filter unit: be used for the alternating current that receives is carried out filtering;
The second rectification unit: be used for described AC rectification through filtering is converted to the second busbar voltage direct current.
Preferably, described system can also comprise:
The switch logic device is used for having no progeny at alternating-current power supply and triggers described alternating current distributor circuit when restoring electricity, and the first busbar voltage direct current and the second busbar voltage direct current that switch described dc power supply path are hot stand-by duty; Be used for when alternating-current power supply interrupts, triggering described direct current distributor circuit, and the first busbar voltage direct current and the second busbar voltage direct current of beginning output DC source path.
Preferably, the voltage of described alternating-current power supply is 220V or 380V; The voltage of described dc power supply is 240V; Described the first busbar voltage and the second busbar voltage are 400V; Described the first rated voltage is 12V; Described the second rated voltage is 220V.
The application provides a kind of method of uninterrupted power supply power supply simultaneously, specifically can comprise:
Dc power supply is set, direct current is provided;
When alternating-current power supply is normal, the conducting alternating-current power supply;
The alternating current or the direct current that receive are converted to first the first busbar voltage direct current, are converted to again the first rated voltage direct current, and when alternating-current power supply was normal, the first busbar voltage direct current in described DC power supply path switched to hot stand-by duty;
The alternating current or the direct current that receive are converted to first the second busbar voltage direct current, are converted to again the alternating current of the second rated voltage, and when alternating-current power supply was normal, the second busbar voltage direct current in described dc power supply path switched to hot stand-by duty;
Export described the first rated voltage direct current to direct-flow electricity utilization apparatus;
Export described the second rated voltage alternating current to AC electric equipment.
Preferably, described alternating current or the direct current that receives is converted to first the first busbar voltage direct current, the galvanic step that is converted to again the first rated voltage can comprise:
The alternating current that receives is converted to the first busbar voltage direct current;
The direct current that receives is converted to the first busbar voltage direct current, and when described alternating-current power supply is normal, switches to hot stand-by duty;
Convert described the first busbar voltage direct current to first rated voltage direct current; Wherein, described the first busbar voltage is higher than the first rated voltage.
Preferably, describedly the alternating current that receives is converted to the galvanic step of the first busbar voltage may further include:
The alternating current that receives is carried out filtering;
Described AC rectification through filtering is converted to the first busbar voltage direct current.
Preferably, described alternating current or the direct current that receives is converted to first the second busbar voltage direct current, the step that is converted to again the alternating current of the second rated voltage can comprise:
The alternating current that receives is converted to the second busbar voltage direct current;
The direct current that receives is converted to the second busbar voltage direct current, and when described alternating-current power supply is normal, switches to hot stand-by duty;
Convert described the second busbar voltage direct current to second rated voltage alternating current; Wherein, described the second busbar voltage is higher than the second rated voltage.
Preferably, describedly the alternating current that receives is converted to the galvanic step of the second busbar voltage may further include:
The alternating current that receives is carried out filtering;
Described AC rectification through filtering is converted to the second busbar voltage direct current.
Preferably, described method when alternating-current power supply is normal, before the conducting alternating-current power supply, can also comprise:
Have no progeny in alternating-current power supply when restoring electricity, the first busbar voltage direct current and the second busbar voltage direct current that switch the dc power supply path are hot stand-by duty; When alternating-current power supply interrupts, begin to export the first busbar voltage direct current and the second busbar voltage direct current in described hot stand-by duty dc power supply path.
Compared with prior art, the application has the following advantages:
The application provides a kind of rack uninterrupted power supply electric power system.When alternating current was normal, alternating current was converted to the 12V direct current through alternating current distributor circuit input rated voltage direct current generative circuit and powers to DC installation; Alternating current also is converted to the 220V alternating current through alternating current distributor circuit input rated voltage alternating current generative circuit and powers to alternating-current installation/AC installation.Realized converting alternating current to the 12V direct current by the one-level conversion, directly offered DC installation and use, reduced the flow process of alternating current conversion, improved energy conversion efficiency.
When alternating current interrupts, by storage battery through the direct current distributor circuit to specified voltage dc generative circuit and the power supply of rated voltage alternating current generative circuit, finally realize the to the back-end uninterrupted power supply of alternating current equipment and DC equipment.
The application also utilizes supervising device to obtain the practical power Rate of average load, and according to the rated voltage direct current generative circuit of described practical power Rate of average load gating respective amount, load factor is regulated and control, guarantee that power supply operates between optimum load region in, thereby reduce electric energy loss.
Description of drawings
Fig. 1 is the ups system power supply plan schematic diagram that traditional machine room adopts;
Fig. 2 is the structured flowchart of the system embodiment 1 of a kind of uninterrupted power supply power supply of the application;
Fig. 3 is the structured flowchart of the system embodiment 2 of a kind of uninterrupted power supply power supply of the application;
Fig. 4 is the flow chart of the embodiment of the method 1 of a kind of uninterrupted power supply power supply of the application;
Fig. 5 is the flow chart of the embodiment of the method 2 of a kind of uninterrupted power supply power supply of the application.
Embodiment
For above-mentioned purpose, the feature and advantage that make the application can become apparent more, below in conjunction with the drawings and specific embodiments the application is described in further detail.
One of core idea of the embodiment of the present application is, the application provides a kind of rack uninterrupted power supply electric power system.When alternating current was normal, alternating current was converted to the 12V direct current through alternating current distributor circuit input rated voltage direct current generative circuit and powers to DC installation; Alternating current also is converted to the 220V alternating current through alternating current distributor circuit input rated voltage alternating current generative circuit and powers to alternating-current installation/AC installation.Realized converting alternating current to the 12V direct current by the one-level conversion, directly offered DC installation and use, reduced the flow process of alternating current conversion, improved energy conversion efficiency.
With reference to Fig. 2, show the structured flowchart of the system embodiment 1 of a kind of uninterrupted power supply power supply of the application, specifically can comprise:
In specific implementation, the dc power supply of system is provided by external batteries, and charger is battery charging when initially installing, and is full of to battery pack and is in floating charge state.Distribute to respectively battery charger and alternating current distributor circuit when alternating-current power supply is normal.When the alternating current fault, provide direct current by batteries, finally realize uninterrupted power supply.Charger also recovers battery charging after alternating current recovers.
Direct current distributor circuit 202 is used for described direct current is distributed to rated voltage alternating current generative circuit and rated voltage direct current generative circuit;
Alternating current distributor circuit 203 is used for when described alternating-current power supply is normal alternating current being distributed to rated voltage alternating current generative circuit and rated voltage direct current generative circuit;
Rated voltage direct current generative circuit 204, be used for alternating current or the direct current that receives is converted to first the first busbar voltage direct current, be converted to again the first rated voltage direct current, and when described alternating-current power supply is normal, the first busbar voltage direct current in described dc power supply path is switched to hot stand-by duty;
In specific implementation, the direct current transformation that rated voltage direct current generative circuit provides batteries always is the first busbar voltage direct current; And when alternating-current power supply is normal, guarantee that the direct current transformation is to switch to hot stand-by duty behind the first busbar voltage direct current.Therefore the first busbar voltage direct current in dc power supply path when AC power is normal, is not exported to the circuit rear end; When AC power failure, can conducting export to the power supply rear end at any time again; Guarantee that rear end rated voltage direct current is in stable uninterrupted output state always.
And in rated voltage direct current generative circuit, when the first busbar voltage direct current is exported to the power supply rear end, further transformation is the 12V DC power supply, can directly offer the inner direct-flow electricity utilization apparatus of IT direct-flow electricity utilization apparatus and IT and use, and does not need external potential device.
In a preferred embodiment of the present application, described rated voltage direct current generative circuit 204 specifically can comprise following circuit:
Circuit is propped up in the first power factor correction, is used for the alternating current that receives is converted to the first busbar voltage direct current;
In a preferred embodiment of the present application, described the first power factor correction is propped up circuit and further can be comprised with lower unit:
The first filter unit: be used for the alternating current that receives is carried out filtering;
The first rectification unit: be used for described AC rectification through filtering is converted to the first busbar voltage direct current.
In specific implementation, circuit is propped up in the first power factor correction can be sinusoidal current with the distortion current correction, and makes it and the voltage same-phase, thereby makes power factor close to 1.Improve power factor for reducing energy resource consumption, improve distribution system efficient.As: the 220V alternating current is converted to the direct current of 400V, and adjust galvanic waveform, reach and improve power factor for reducing energy resource consumption, improve the purpose of distribution system efficient.
The first transformation is propped up circuit, is used for the direct current that receives is converted to the first busbar voltage direct current, and when alternating-current power supply is normal, and the first busbar voltage direct current in described dc power supply path is switched to hot stand-by duty;
In specific implementation, the first transformation is propped up main circuit will be converted to the direct current that receives the first busbar voltage direct current.And when alternating current was normal, the first busbar voltage direct current in this circuit was in hot stand-by duty.As: the dc voltage that storage battery provides is 240V, props up through the first transformation that to become voltage after the circuit conversion be the direct current of 400V.And when alternating current was normal, the direct voltage of 400V was in hot stand-by duty in this circuit.
Direct current transformation props up circuit, is used for converting described the first busbar voltage direct current to first rated voltage direct current; Wherein, described the first busbar voltage is higher than the first rated voltage.
In specific implementation, propping up circuit by direct current transformation can be that the direct current of 400V converts the direct current that the first rated voltage is 12V to the first busbar voltage.
Rated voltage alternating current generative circuit 205, be used for alternating current or the direct current that receives is converted to first the second busbar voltage direct current, be converted to again the second rated voltage alternating current, and when described alternating-current power supply is normal, the second busbar voltage direct current in described dc power supply path is switched to hot stand-by duty;
In specific implementation, the direct current transformation that rated voltage alternating current generative circuit provides batteries always is the second busbar voltage direct current; And when alternating-current power supply is normal, guarantee that the direct current transformation is to switch to hot stand-by duty behind the second busbar voltage direct current.Therefore the second busbar voltage direct current in dc power supply path when AC power is normal, is not exported to the circuit rear end; When AC power failure, can conducting export to the power supply rear end at any time again; Guarantee that rear end rated voltage alternating current is in stable uninterrupted output state always.
In a preferred embodiment of the present application, described rated voltage alternating current generative circuit 206 specifically can comprise following circuit:
Circuit is propped up in the second power factor correction, is used for the alternating current that receives is converted to the second busbar voltage direct current;
In a preferred embodiment of the present application, described the second power factor correction is propped up circuit and further can be comprised with lower unit:
The second filter unit: be used for the alternating current that receives is carried out filtering;
The second rectification unit: be used for described AC rectification through filtering is converted to the second busbar voltage direct current.
In specific implementation, the second power factor correction is propped up circuit and the 220V alternating current is converted to the direct current of 400V, and adjusts galvanic waveform, reaches to improve power factor for reducing energy resource consumption, improves distribution system efficient purpose.
The second transformation is propped up circuit, is used for the direct current that receives is converted to the second busbar voltage direct current, and when alternating-current power supply is normal, and the second busbar voltage direct current in described dc power supply path is switched to hot stand-by duty;
In specific implementation, the second transformation is propped up main circuit will be converted to the direct current that receives the second busbar voltage direct current.And when alternating current was normal, the second busbar voltage direct current in this circuit was in hot stand-by duty.As: the dc voltage that batteries provides is 240V, props up through the second transformation that to become busbar voltage after the circuit conversion be the direct current of 400V.And when alternating current was normal, the direct current of the 400V in this circuit was in hot stand-by duty.
Ac converter props up circuit, is used for converting described the second busbar voltage direct current to second rated voltage alternating current; Wherein, described the second busbar voltage is higher than the second rated voltage.
In specific implementation, it is that the dc inverter of 400V is converted to the alternating current that the second rated voltage is 220V with busbar voltage that ac converter props up circuit.
Rated voltage direct current output circuit 206 is used for exporting the direct current of described the first rated voltage to direct-flow electricity utilization apparatus;
Rated voltage alternating current output circuit 207 is used for exporting the alternating current of described the second rated voltage to AC electric equipment.
In a kind of preferred embodiment of the application, the voltage of described alternating-current power supply can be 220V or 380V; The voltage of described dc power supply can be 240V; Described the first busbar voltage and the second busbar voltage can be 400V; Described the first rated voltage can be 12V; Described the second rated voltage can be 220V.
In specific implementation, the first busbar voltage and the second busbar voltage generally are about 400V; According to the change of application and environment, the concrete numerical value of voltage also can be made corresponding adjustment.
In order to make things convenient for those skilled in the art to understand better the application, below with reference to Fig. 2, illustrate further the application by a complete example:
1, the alternating current supply is in normal condition, and civil power provides the alternating current of 220V; Dc power supply provides the 240V direct current.
2, the alternating current distributor circuit is supplied to respectively rated voltage alternating current generative circuit and rated voltage direct current generative circuit with the 220V alternating current; The direct current distributor circuit is supplied to respectively rated voltage alternating current generative circuit and rated voltage direct current generative circuit with the 240V direct current.
3, the first power factor correction is propped up circuit the 220V alternating current is done filter rectification and transformation processing in the rated voltage direct current generative circuit, converts the 400V direct current to, and then direct current transformation props up circuit the 400V direct current is done the transformation processing, converts the 12V direct current to.The first transformation is propped up circuit the 240V direct current is done the transformation processing in the rated voltage direct current generative circuit, converts the 400V direct current to and does not temporarily export to direct current transformation and prop up circuit, and be in hot stand-by duty.
4, the second power factor correction is propped up circuit the 220V alternating current is done filter rectification and transformation processing in the rated voltage alternating current generative circuit, convert the 400V direct current to, then ac converter props up circuit the 400V direct current is done inversion and transformation processing, converts the 220V alternating current to.The second transformation is propped up circuit the 240V direct current is done the transformation processing in the rated voltage alternating current generative circuit, converts the 400V direct current to and does not temporarily export to ac converter and prop up circuit, and be in hot stand-by duty.
5, rated voltage direct current output circuit is supplied with the back end DC power consumption equipment with the 12V direct current; Rated voltage alternating current output circuit is supplied with the rear end AC electric equipment with the 220V alternating current.
6, when the alternating current supply discontinuity, to prop up the 400V direct current that is in hot stand-by duty in the circuit in the first transformation of rated voltage direct current generative circuit immediately exports to direct current transformation and props up circuit, then direct current transformation props up circuit the 400V direct current is done the transformation processing, converts the 12V direct current to;
7, when the alternating current supply discontinuity, to prop up the 400V direct current that is in hot stand-by duty in the circuit in the second transformation of rated voltage alternating current generative circuit immediately exports to direct current transformation and props up circuit, then ac converter props up circuit the 400V direct current is done inversion and transformation processing, converts the 220V alternating current to;
8, rated voltage direct current output circuit is supplied with the back end DC power consumption equipment with the 12V direct current; Rated voltage alternating current output circuit is supplied with the rear end AC electric equipment with the 220V alternating current.
With reference to Fig. 3, show the structured flowchart of the system embodiment 2 of a kind of uninterrupted power supply power supply of the application, specifically can comprise:
Direct current distributor circuit 302 is used for direct current is distributed to rated voltage alternating current generative circuit and rated voltage direct current generative circuit;
Alternating current distributor circuit 304 is used for when described alternating-current power supply is normal alternating-current power supply being distributed to rated voltage alternating current generative circuit and rated voltage direct current generative circuit;
Rated voltage direct current generative circuit 305, be used for alternating current or the direct current that receives is converted to first the busbar voltage direct current, be converted to again the first rated voltage direct current, and when described alternating-current power supply is normal, the busbar voltage direct current in described dc power supply path is switched to hot stand-by duty;
In a preferred embodiment of the present application, described rated voltage direct current generative circuit 204 specifically can comprise following circuit:
Circuit is propped up in the first power factor correction, is used for the alternating current that receives is converted to the first busbar voltage direct current;
In a preferred embodiment of the present application, described the first power factor correction is propped up circuit and further can be comprised with lower unit:
The first filter unit: be used for the alternating current that receives is carried out filtering;
The first rectification unit: be used for described AC rectification through filtering is converted to the first busbar voltage direct current.
The first transformation is propped up circuit, is used for the direct current that receives is converted to the first busbar voltage direct current, and when alternating-current power supply is normal, and the first busbar voltage direct current in described dc power supply path is switched to hot stand-by duty;
Direct current transformation props up circuit, is used for described the first busbar voltage direct current is converted to the direct current of the first rated voltage; Wherein, described the first busbar voltage is higher than the first rated voltage.
Supervising device 306 is used for monitoring rated voltage direct current generative circuit job information, obtains the practical power Rate of average load, and according to the rated voltage direct current generative circuit of described practical power Rate of average load gating respective amount.
In specific implementation, direct current distributor circuit, alternating current distributor circuit, rated voltage direct current generative circuit, rated voltage alternating current generative circuit, rated voltage direct current output circuit and rated voltage alternating current output circuit can sensor installations, and described transducer connects outer monitoring equipment; Transducer can obtain each circuit working state, temperature, the information such as power.Cross when low when monitoring the practical power Rate of average load, with the mode of the rated voltage direct current generative circuit of gating respective amount the power supply Rate of average load regulated and control, guarantee that power supply operates between optimum load region in, thereby the minimizing electric energy loss.As: be 30% to 80% between optimum load region, if when the power supply Rate of average load is lower than 30%, then reduce the rated voltage direct current generative circuit quantity of work, improve the power supply Rate of average load; When if the power supply Rate of average load is higher than 80%, then increase the rated voltage direct current generative circuit quantity of work, reduce the power supply Rate of average load; The power supply Rate of average load is remained in the optimal load interval of power supply Rate of average load 30% to 80%.
Rated voltage alternating current generative circuit 307, be used for alternating current or the direct current that receives is converted to first the busbar voltage direct current, be converted to again the second rated voltage alternating current, and when described alternating-current power supply is normal, the busbar voltage direct current in described dc power supply path is switched to hot stand-by duty;
In a preferred embodiment of the present application, described rated voltage alternating current generative circuit 206 specifically can comprise following circuit:
Circuit is propped up in the second power factor correction, is used for the alternating current that receives is converted to the second busbar voltage direct current;
In a preferred embodiment of the present application, described the second power factor correction is propped up circuit and further can be comprised with lower unit:
The second filter unit: be used for the alternating current that receives is carried out filtering;
The second rectification unit: be used for described AC rectification through filtering is converted to the second busbar voltage direct current.
The second transformation is propped up circuit, is used for the direct current that receives is converted to the second busbar voltage direct current, and when alternating-current power supply is normal, and the second busbar voltage direct current in described dc power supply path is switched to hot stand-by duty;
Ac converter props up circuit, is used for described the second busbar voltage direct current is converted to the direct current of the second rated voltage; Wherein, described the second busbar voltage is higher than the second rated voltage.
Rated voltage direct current output circuit 308 is used for exporting described the first rated voltage direct current to direct-flow electricity utilization apparatus;
Rated voltage alternating current output circuit 309 is used for exporting described the second rated voltage alternating current to AC electric equipment.
In a kind of preferred embodiment of the application, the voltage of described alternating-current power supply can be 220V or 380V; The voltage of described dc power supply can be 240V; Described the first busbar voltage can be 400V; Described the second busbar voltage can be 400V; Described the first rated voltage can be 12V; Described the second rated voltage can be 220V.
In order to make things convenient for those skilled in the art to understand better the application, below with reference to Fig. 3, illustrate further the application by a complete example:
1, when alternating current interrupts, use batteries to serve as the dc power supply power supply, the direct current of 240V is provided;
2, the described batteries of direct current distributor circuit conducting is connected with rated voltage direct current generative circuit with rated voltage alternating current generative circuit and is connected;
3, the first transformation is propped up circuit the 240V direct current is done the transformation processing in the rated voltage direct current generative circuit, converts the 400V direct current to, and then direct current transformation props up circuit the 400V direct current is done the transformation processing, converts the 12V direct current to;
4, the second transformation is propped up circuit the 240V direct current is done the transformation processing in the rated voltage direct current generative circuit, converts the 400V direct current to, and then ac converter props up circuit the 400V direct current is done inversion and transformation processing, converts the 220V alternating current to;
5, rated voltage direct current output circuit is supplied with the back end DC power consumption equipment with the 12V direct current; Rated voltage direct current output circuit is supplied with the rear end AC electric equipment with the 220V alternating current.
6, when alternating-current power supply recovers normal power supply, switching logic circuit triggers the alternating current distributor circuit, again makes the alternating current distributor circuit be in normal operating conditions; And the 400V direct current in dc power supply path is switched to hot stand-by duty.
7, the alternating current distributor circuit receives the alternating current of 220V/380V, and the 220V/380V alternating current is distributed to rated voltage alternating current generative circuit and rated voltage direct current generative circuit.
8, rated voltage direct current generative circuit receives the 220V/380V alternating current, props up circuit through the first power factor correction the 220V/380V alternating current is done filter rectification and transformation processing, converts the 400V direct current to; Prop up circuit through direct current transformation the 400V direct current is done the transformation processing, convert the 12V direct current to; At this time, the first transformation is propped up and is in hot stand-by duty after circuit converts the 240V direct current to the 400V direct current, does not prop up circuit output to direct current transformation.
9, current have 6 rated voltage direct current generative circuits in parallel, wherein has 4 in work.At this moment, it is 27% that the numerical value that supervising device obtains from transducer monitors current practical power Rate of average load, is lower than between the load region of 30% to 80% optimum.So select to close 2 rated voltage direct current generative circuits, the power supply Rate of average load is brought up between the load region of 30% to 80% optimum in.
10, rated voltage alternating current generative circuit receives the 220V/380V alternating current, props up circuit through the second power factor correction the 220V/380V alternating current is done filter rectification and transformation processing, converts the 400V direct current to; Prop up circuit through ac converter the 400V direct current is done inversion and transformation processing, convert the 220V direct current to; At this time, the second transformation is propped up and is in hot stand-by duty after circuit converts the 240V direct current to the 400V direct current, does not prop up circuit output to ac converter.
11, rated voltage direct current output circuit is supplied with the back end DC power consumption equipment with the 12V direct current; Rated voltage alternating current output circuit is supplied with the rear end AC electric equipment with the 220V alternating current.
Need to prove, for system embodiment, for simple description, therefore it all is expressed as a series of combination of actions, but those skilled in the art should know, the application is not subjected to the restriction of described sequence of movement, because according to the application, some step can adopt other orders or carry out simultaneously.Secondly, those skilled in the art also should know, the embodiment described in the specification all belongs to preferred embodiment, and related action might not be that the application is necessary.
With reference to Fig. 4, show the flow chart of the embodiment of the method 1 of a kind of uninterrupted power supply power supply of the application, specifically can comprise:
In a preferred embodiment of the present application, described step 403 specifically can comprise following substep:
Substep S11, the alternating current that receives is converted to the first busbar voltage direct current;
In a preferred embodiment of the present application, described substep S11 may further include with lower unit:
The alternating current that receives is carried out filtering;
Described AC rectification through filtering is converted to the first busbar voltage direct current.
Substep S12, the direct current that receives is converted to the first busbar voltage direct current, and when described alternating-current power supply is normal, switches to hot stand-by duty;
Substep S13, described the first busbar voltage direct current converted to the direct current of the first rated voltage; Wherein, described the first busbar voltage is higher than the first rated voltage.
In a preferred embodiment of the present application, described step 404 specifically can comprise:
Substep S21, the alternating current that receives is converted to the second busbar voltage direct current;
In a preferred embodiment of the present application, described substep S21 may further include:
The alternating current that receives is carried out filtering;
Described AC rectification through filtering is converted to the second busbar voltage direct current.
Substep S22, the direct current that receives is converted to the second busbar voltage direct current, and when described alternating-current power supply is normal, switches to hot stand-by duty;
Substep S23, described the second busbar voltage direct current converted to the direct current of the second rated voltage; Wherein, described the second busbar voltage is higher than the second rated voltage.
With reference to Fig. 5, show the flow chart of the embodiment of the method 2 of a kind of uninterrupted power supply power supply of the application, specifically can also comprise:
Because described embodiment of the method is substantially corresponding to aforementioned means embodiment, therefore not detailed part in the description of the present embodiment can referring to the related description in the previous embodiment, just not given unnecessary details at this.
At last, also need to prove, in this article, relational terms such as the first and second grades only is used for an entity or operation are separated with another entity or operating space, and not necessarily requires or hint and have the relation of any this reality or sequentially between these entities or the operation.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby not only comprise those key elements so that comprise process, method, article or the equipment of a series of key elements, but also comprise other key elements of clearly not listing, or also be included as the intrinsic key element of this process, method, article or equipment.In the situation that not more restrictions, the key element that is limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises described key element and also have other identical element.
The system that above a kind of uninterrupted power supply that the application is provided is powered and the method for a kind of uninterrupted power supply power supply are described in detail, used specific case herein the application's principle and execution mode are set forth, the explanation of above embodiment just is used for helping to understand the application's method and core concept thereof; Simultaneously, for one of ordinary skill in the art, the thought according to the application all will change in specific embodiments and applications, and in sum, this description should not be construed as the restriction to the application.
Claims (14)
1. the system of a uninterrupted power supply power supply is characterized in that, comprising:
Dc power supply is used for providing direct current;
The direct current distributor circuit is used for described direct current is distributed to rated voltage alternating current generative circuit and rated voltage direct current generative circuit;
The alternating current distributor circuit is used for when described alternating-current power supply is normal alternating current being distributed to rated voltage alternating current generative circuit and rated voltage direct current generative circuit;
Rated voltage direct current generative circuit, be used for alternating current or the direct current that receives is converted to first the first busbar voltage direct current, be converted to again the first rated voltage direct current, and when described alternating-current power supply is normal, the first busbar voltage direct current in described dc power supply path is switched to hot stand-by duty;
Rated voltage alternating current generative circuit, be used for alternating current or the direct current that receives is converted to first the second busbar voltage direct current, be converted to again the second rated voltage alternating current, and when described alternating-current power supply is normal, the second busbar voltage direct current in described dc power supply path is switched to hot stand-by duty;
Rated voltage direct current output circuit is used for exporting described the first rated voltage direct current to direct-flow electricity utilization apparatus;
Rated voltage alternating current output circuit is used for exporting described the second rated voltage alternating current to AC electric equipment.
2. the system as claimed in claim 1 is characterized in that, described rated voltage direct current generative circuit is provided with at least two, and described system also comprises:
Supervising device is used for monitoring rated voltage direct current generative circuit job information, obtains the practical power Rate of average load, and according to the rated voltage direct current generative circuit of described practical power Rate of average load gating respective amount.
3. system as claimed in claim 2 is characterized in that, described rated voltage direct current generative circuit comprises:
Circuit is propped up in the first power factor correction, is used for the alternating current that receives is converted to the first busbar voltage direct current;
The first transformation is propped up circuit, is used for the direct current that receives is converted to the first busbar voltage direct current, and when alternating-current power supply is normal, and the first busbar voltage direct current in described dc power supply path is switched to hot stand-by duty;
Direct current transformation props up circuit, is used for converting described the first busbar voltage direct current to first rated voltage direct current; Wherein, described the first busbar voltage is higher than the first rated voltage.
4. system as claimed in claim 3 is characterized in that, described the first power factor correction is propped up circuit and comprised:
The first filter unit: be used for the alternating current that receives is carried out filtering;
The first rectification unit: be used for described AC rectification through filtering is converted to the first busbar voltage direct current.
5. system as claimed in claim 4 is characterized in that, described rated voltage alternating current generative circuit comprises:
Circuit is propped up in the second power factor correction, is used for the alternating current that receives is converted to the second busbar voltage direct current;
The second transformation is propped up circuit, is used for the direct current that receives is converted to the second busbar voltage direct current, and when alternating-current power supply is normal, and the second busbar voltage direct current in described dc power supply path is switched to hot stand-by duty;
Ac converter props up circuit, is used for converting described the second busbar voltage direct current to second rated voltage alternating current; Wherein, described the second busbar voltage is higher than the second rated voltage.
6. system as claimed in claim 5 is characterized in that, described the second power factor correction is propped up circuit and comprised:
The second filter unit: be used for the alternating current that receives is carried out filtering;
The second rectification unit: be used for described AC rectification through filtering is converted to the second busbar voltage direct current.
7. system as claimed in claim 6 is characterized in that, also comprises:
The switch logic device is used for having no progeny at alternating-current power supply and triggers described alternating current distributor circuit when restoring electricity, and the first busbar voltage direct current and the second busbar voltage direct current that switch described dc power supply path are hot stand-by duty; Be used for when alternating-current power supply interrupts, triggering described direct current distributor circuit, and the first busbar voltage direct current and the second busbar voltage direct current of beginning output DC source path.
8. system as claimed in claim 7 is characterized in that, the voltage of described alternating-current power supply is 220V or 380V; The voltage of described dc power supply is 240V; Described the first busbar voltage and the second busbar voltage are 400V; Described the first rated voltage is 12V; Described the second rated voltage is 220V.
9. the method for a uninterrupted power supply power supply is characterized in that, comprising:
Dc power supply is set, direct current is provided;
When alternating-current power supply is normal, the conducting alternating-current power supply;
The alternating current or the direct current that receive are converted to first the first busbar voltage direct current, are converted to again the first rated voltage direct current, and when alternating-current power supply was normal, the first busbar voltage direct current in described DC power supply path switched to hot stand-by duty;
The alternating current or the direct current that receive are converted to first the second busbar voltage direct current, are converted to again the alternating current of the second rated voltage, and when alternating-current power supply was normal, the second busbar voltage direct current in described dc power supply path switched to hot stand-by duty;
Export described the first rated voltage direct current to direct-flow electricity utilization apparatus;
Export described the second rated voltage alternating current to AC electric equipment.
10. method as claimed in claim 9 is characterized in that, described alternating current or the direct current that receives is converted to first the first busbar voltage direct current, and the galvanic step that is converted to again the first rated voltage comprises:
The alternating current that receives is converted to the first busbar voltage direct current;
The direct current that receives is converted to the first busbar voltage direct current, and when described alternating-current power supply is normal, switches to hot stand-by duty;
Convert described the first busbar voltage direct current to first rated voltage direct current; Wherein, described the first busbar voltage is higher than the first rated voltage.
11. method as claimed in claim 10 is characterized in that, describedly the alternating current that receives is converted to the galvanic step of the first busbar voltage further comprises:
The alternating current that receives is carried out filtering;
Described AC rectification through filtering is converted to the first busbar voltage direct current.
12. method as claimed in claim 11 is characterized in that, described alternating current or the direct current that receives is converted to first the second busbar voltage direct current, the step that is converted to again the alternating current of the second rated voltage comprises:
The alternating current that receives is converted to the second busbar voltage direct current;
The direct current that receives is converted to the second busbar voltage direct current, and when described alternating-current power supply is normal, switches to hot stand-by duty;
Convert described the second busbar voltage direct current to second rated voltage alternating current; Wherein, described the second busbar voltage is higher than the second rated voltage.
13. method as claimed in claim 12 is characterized in that, describedly the alternating current that receives is converted to the galvanic step of the second busbar voltage further comprises:
The alternating current that receives is carried out filtering;
Described AC rectification through filtering is converted to the second busbar voltage direct current.
14. method as claimed in claim 13 is characterized in that, when alternating-current power supply is normal, before the conducting alternating-current power supply, also comprises:
Have no progeny in alternating-current power supply when restoring electricity, the first busbar voltage direct current and the second busbar voltage direct current that switch the dc power supply path are hot stand-by duty; When alternating-current power supply interrupts, begin to export the first busbar voltage direct current and the second busbar voltage direct current in described hot stand-by duty dc power supply path.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210082627.7A CN103368249B (en) | 2012-03-26 | 2012-03-26 | The system and method that a kind of uninterrupted power supply is powered |
| HK13114116.5A HK1186851A1 (en) | 2012-03-26 | 2013-12-20 | System and method for supplying power by uninterrupted power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210082627.7A CN103368249B (en) | 2012-03-26 | 2012-03-26 | The system and method that a kind of uninterrupted power supply is powered |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103368249A true CN103368249A (en) | 2013-10-23 |
| CN103368249B CN103368249B (en) | 2016-02-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210082627.7A Active CN103368249B (en) | 2012-03-26 | 2012-03-26 | The system and method that a kind of uninterrupted power supply is powered |
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| Country | Link |
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| CN (1) | CN103368249B (en) |
| HK (1) | HK1186851A1 (en) |
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| CN106340956A (en) * | 2016-11-09 | 2017-01-18 | 上海传英信息技术有限公司 | Uninterrupted power source (UPS) conversion device and power supply control method thereof |
| CN106711990A (en) * | 2015-07-29 | 2017-05-24 | 腾讯科技（深圳）有限公司 | Vehicle concentrated power supply device and system |
| CN108522221A (en) * | 2018-04-23 | 2018-09-14 | 台州创投环保科技有限公司 | A kind of agricultural irrigation systems based on agriculture big data |
| CN110933346A (en) * | 2019-11-26 | 2020-03-27 | 广州长嘉电子有限公司 | Television power supply method and system based on uninterruptible power supply |
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| JP2005176460A (en) * | 2003-12-09 | 2005-06-30 | Fuji Electric Fa Components & Systems Co Ltd | Uninterruptible power supply unit |
| CN101286655A (en) * | 2008-05-22 | 2008-10-15 | 中国科学院电工研究所 | Complementary power supply system of wind and photovoltaic power generation based on super capacitor power storage |
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| CN108522221A (en) * | 2018-04-23 | 2018-09-14 | 台州创投环保科技有限公司 | A kind of agricultural irrigation systems based on agriculture big data |
| CN110933346A (en) * | 2019-11-26 | 2020-03-27 | 广州长嘉电子有限公司 | Television power supply method and system based on uninterruptible power supply |
Also Published As
| Publication number | Publication date |
|---|---|
| HK1186851A1 (en) | 2014-03-21 |
| CN103368249B (en) | 2016-02-10 |
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