CN102497095A - Power-factor correction (PFC) topology of uninterrupted power supply - Google Patents
Power-factor correction (PFC) topology of uninterrupted power supply Download PDFInfo
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Abstract
The embodiment of the invention relates to a power-factor correction (PFC) topology of an uninterrupted power supply. The topology comprises a commercial power input module, a battery group, a rectifier circuit, a PFC circuit and a charger circuit, wherein the output end of the commercial power input module and the output end of the battery group are connected with the input end of the rectifier circuit; the output end of the rectifier circuit is connected with the input end of the PFC circuit, the output end of the PFC circuit is connected with the input end of the charger circuit, and is used for supplying power to the charger circuit; and the output end of the charger circuit is connected with the input end of the battery group, and is used for charging the battery group. The charger circuit provided by the embodiment of the invention carries out charging on the battery group by taking electricity from the output end of the PFC circuit, and is capable of avoiding influence of commercial power input on an input characteristic of the charger circuit, thereby improving a PFC performance and a battery group charging performance.
Description
Technical field
The embodiment of the invention relates to electronic applications, and more specifically, relates to the power factor correction topology of uninterrupted power supply.
Background technology
On line type UPS (Uninterruptible Power Supply, uninterrupted power supply) has been widely used in various power supply occasions.For in powerful UPS because discharge power is bigger, the battery cell that needs is more, the cost ratio that battery accounts for complete machine is lower, but it is higher to account for the cost ratio of UPS complete machine for the small-power UPS battery, for the reduction cost must adopt the monocell topology.
PFC (the Power Factor Correction of present UPS; Power factor correction) input of topology has civil power input and two kinds of patterns of battery pack; Realize two dc bus outputs through two (Boost) circuit conversion of boosting; The charger circuit of battery is from the positive half cycle power taking of civil power input, uses the inductance of pfc circuit and increase the minority device to constitute single step-down (Buck)-Boost circuit, and single-revolution charges the battery.Because it is the charger circuit of battery is imported power taking from civil power, bigger to its input characteristics influence.
Summary of the invention
The embodiment of the invention provides the power factor correction topology of uninterrupted power supply, can avoid the influence of civil power input to the input characteristics of charger circuit, thereby improve PFC performance and batteries charging performance.
A kind of power factor correction topology of uninterrupted power supply is provided; Comprise: civil power input module, battery pack, rectification circuit, pfc circuit and charger circuit, wherein the output of the output of this civil power input module and this battery pack is connected in the input of this rectification circuit; The output of this rectification circuit is connected in the input of this pfc circuit; The output of this pfc circuit is connected in the input of this charger circuit, is used for to this charger circuit power supply; The output of this charger circuit is connected in the input of this battery pack, is used for to this batteries charging.
The charger circuit of the embodiment of the invention is that battery pack is charged from the output power taking of pfc circuit, can avoid the influence of civil power input to the input characteristics of charger circuit, thereby improve PFC performance and batteries charging performance.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structured flowchart of the PFC topology of UPS according to an embodiment of the invention.
Fig. 2 is the circuit structure diagram of PFC topology according to an embodiment of the invention.
Fig. 3 is the circuit structure diagram of PFC topology according to another embodiment of the present invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
It should be noted that in the following description that when two elements " connection ", these two elements can directly connect, and also can connect indirectly through one or more intermediary element/media.Two element ways of connecting can comprise the way of contact or noncontact mode, perhaps can comprise wired mode or wireless mode.Those skilled in the art can carry out equivalence replacement or modification to the example connected mode of following description, and such replacement or modification all fall in the scope of the present invention.
Fig. 1 is the structured flowchart of the PFC topology of UPS according to an embodiment of the invention.
As shown in Figure 1, this PFC topology comprises civil power input module 11, battery pack 12, rectification circuit 13, pfc circuit 14 and charger circuit 15.
The output of the output of civil power input module 11 and battery pack 12 is connected in the input of rectification circuit 13.The output of rectification circuit 13 is connected in the input of pfc circuit 14.The output of pfc circuit 14 is connected in the input of charger circuit 15, is used for to charger circuit 15 power supplies.The output of charger circuit 15 is connected in the input of battery pack 12, is used for to battery pack 12 chargings.
The charger circuit of the embodiment of the invention is that battery pack is charged from the output power taking of pfc circuit, can avoid the influence of civil power input to the input characteristics of charger circuit, thereby improve PFC performance and batteries charging performance.
Alternatively; As an embodiment; Pfc circuit 14 can comprise first boost (Boost) circuit and the 2nd Boost circuit; Wherein a Boost circuit symmetrical is in the 2nd Boost circuit, and the input of the input of a Boost circuit and the 2nd Boost circuit is connected in the output of rectification circuit 13, and the output of the output of a Boost circuit and the 2nd Boost circuit is connected in the input of charger circuit 15.
Alternatively; As another embodiment; The one Boost circuit comprises first inductance, first switching device, first diode, second diode and first electric capacity; Wherein the end of the same name of first inductance is connected in the output of rectification circuit 13; The non-same polarity of first inductance is connected in the input of first switching device, the negative electrode of second diode and the anode of first diode, the output of first switching device be connected in second diode anode and first electric capacity negative pole and be connected in reference to ground, the negative electrode of first diode is connected in the positive pole of first electric capacity.
Alternatively; As another embodiment; The 2nd Boost circuit comprises second inductance, second switch device, the 3rd diode, the 4th diode and second electric capacity; Wherein the non-same polarity of second inductance is connected in the output of rectification circuit 13; The end of the same name of second inductance is connected in the output of second switch device, the negative electrode of the 3rd diode and the anode of the 4th diode, and the input of second switch device is connected in negative electrode and second electric capacity anodal of the 4th diode and is connected in reference to ground, and the anode of the 3rd diode is connected in the negative pole of second electric capacity.
Alternatively, as another embodiment, charger circuit 15 can be step-down (Buck) circuit, and this charger circuit 15 comprises first inductance, second inductance, first electric capacity, second electric capacity.
Shared inductance of charger circuit in the embodiment of the invention and pfc circuit and electric capacity can reduce number of devices, reduce cost.
Alternatively; As another embodiment; Charger circuit 15 also can comprise second diode, the 4th diode, the 5th diode, the 6th diode, the 3rd switching device, the 4th switching device, the 5th switching device and the 6th switching device; Wherein the anode of the 5th diode is connected in the non-same polarity of second inductance; The negative electrode of the 5th diode is connected in the output of the 3rd switching device and the positive pole of battery pack 12, and the anode of the 6th diode is connected in the input of the 5th switching device and the negative pole of battery pack 12, and the negative electrode of the 6th diode is connected in the end of the same name of first inductance; The input of the 3rd switching device is connected in the non-same polarity of first inductance; The output of the 5th switching device is connected in the end of the same name of second inductance, and the input of the 4th switching device is connected in the positive pole of first electric capacity, and the output of the 4th switching device is connected in the end of the same name of first inductance; The input of the 6th switching device is connected in the non-same polarity of second inductance, and the output of the 6th switching device is connected in the negative pole of second electric capacity.
Charger circuit in the embodiment of the invention and pfc circuit common sparing device also increase the two Buck circuit of minority device formation, can reduce cost.Be batteries charging through charger circuit from the output dc bus power taking of pfc circuit simultaneously, can avoid the influence of civil power input the charger circuit input characteristics.
Alternatively; As another embodiment; Charger circuit 15 can comprise that also first switching device, second switch device, the 7th diode, the 8th diode, minion are closed device, octavo is closed device, the 9th switching device and the tenth switching device; Wherein the anode of the 7th diode is connected in the negative pole of battery pack 12 and the input of the 9th switching device; The negative electrode of the 7th diode is connected in the non-same polarity of first inductance, and the anode of the 8th diode is connected in the end of the same name of second inductance, and the negative electrode of the 8th diode is connected in the positive pole of battery pack 12 and the output that minion is closed device; The input of minion pass device is connected in the end of the same name of first inductance; The output of the 9th switching device is connected in the non-same polarity of second inductance, and the input of octavo pass device is connected in the positive pole of first electric capacity, and the output of octavo pass device is connected in the non-same polarity of second inductance; The input of the tenth switching device is connected in the end of the same name of first inductance, and the output of the tenth switching device is connected in the negative pole of second electric capacity.
Charger circuit in the embodiment of the invention and pfc circuit common sparing device also increase the two Buck circuit of minority device formation, can reduce cost.Charger circuit is a batteries charging from the output power taking of pfc circuit simultaneously, can avoid the influence of civil power input to the charger circuit input characteristics.
Alternatively; As another embodiment; Input signal at civil power input module 11 is under the situation of positive half cycle or negative half period, and the output of the output of a Boost circuit or the 2nd Boost circuit is used for to charger circuit 15 power supplies, to be used for to battery pack 12 chargings.
All can be batteries charging when the positive half cycle of the electrical input signal of the charger circuit in the embodiment of the invention and negative half period, improve charge power in the city.
Alternatively; As another embodiment; The 4th switching device can be insulated gate bipolar transistor (Insulated Gate Bipolar Transistor; IGBT) or metal oxide semiconductcor field effect transistor (Metal-Oxide-Semiconductor Field-Effect Transistor, MOSFET), and the 6th switching device can be IGBT or MOSFET.
Through in charger circuit, adopting suitable switching device, can increase the power of charger circuit, and can reduce the ripple that charges in the embodiment of the invention, improve charging performance.
Alternatively, as another embodiment, it can be IGBT or MOSFET that octavo is closed device, and said the tenth switching device can be IGBT or MOSFET.
Through in charger circuit, adopting suitable switching device, can increase the power of charger circuit, and can reduce the ripple that charges in the embodiment of the invention, improve charging performance.
To combine concrete example to describe the PFC topology of the UPS of the embodiment of the invention in detail below.The example that it should be noted that Fig. 2 and Fig. 3 is just in order to help those skilled in the art to understand the present invention better, and the scope of the unrestricted embodiment of the invention.
Fig. 2 is the circuit structure diagram of PFC topology according to an embodiment of the invention.Fig. 2 is an example of the PFC topology of Fig. 1.
As shown in Figure 2, this PFC topology comprises civil power input module 11a, battery pack 12a, rectification circuit 13a, pfc circuit 14a and charger circuit 15a.
Civil power input module 11a is an example of civil power input module 11 among Fig. 1, comprises civil power input Line.
Battery pack 12a is an example of battery pack 12 among Fig. 1, comprises battery pack BAT.
Rectification circuit 13a is an example of rectification circuit 13 among Fig. 1, comprises thyristor Q1, thyristor Q2, thyristor Q3 and thyristor Q8.
Pfc circuit 14a is an example of pfc circuit 14 among Fig. 1; The Boost circuit and the 2nd Boost circuit that comprise symmetry, wherein a Boost circuit comprises first inductance L 1, the first switching device Q4, the first diode D1, the second diode D2 and first capacitor C 1.The first switching device Q4 can be IGBT.The 2nd Boost circuit comprises second inductance L 2, second switch device Q5, the 3rd diode D3, the 4th diode D4 and second capacitor C 2.Second switch device Q5 can be IGBT.
Charger circuit 15a is an example of charger circuit 15 among Fig. 1, is the Buck circuit, comprises first inductance L 1, second inductance L 2, first capacitor C 1, second capacitor C 2.Charger circuit 15a also comprises the second diode D2, the 4th diode D4, the 5th diode D5, the 6th diode D6, the 3rd switching device Q6, the 4th switching device Q7, the 5th switching device Q9, the 6th switching device Q10; Wherein the 3rd switching device Q6 and the 5th switching device Q9 can be thyristors, and the 4th switching device Q7 and the 6th switching device Q10 can be IGBT.
Civil power input module 11a and battery pack 12a supply power one of them to this circuit structure.Under the situation of civil power input module 11a power supply, charger circuit 15a can charge to battery pack 12a.Under the situation that civil power input module 11a does not supply power, battery pack 12a can supply power.To describe the topological working method of the PFC of Fig. 2 below.
Under the situation of civil power input module 11a power supply, pfc circuit 14a working method is following:
When city's electrical input signal is in positive half cycle, thyristor Q1 conducting.When the first switching device Q4 conducting, the sense of current is: civil power input Line → thyristor Q1 → first inductance L, 1 → the first switching device Q4 → reference ground, and first inductance L, 1 energy storage this moment, first capacitor C 1 is an electric.When the first switching device Q4 ended, the sense of current was: civil power input Line → thyristor Q1 → first inductance L, 1 → the first diode D1 → first capacitor C 1 → reference ground, this moment, first inductance L 1 released energy and civil power input Line while powering load.
When city's electrical input signal is in negative half period, thyristor Q2 conducting.When second switch device Q5 conducting, the sense of current is: with reference to ground → second switch device Q5 → second inductance L, 2 → thyristor Q2 → civil power input Line, and 2 energy storage of second inductance L, second capacitor C 2 is an electric.When second switch device Q5 ended, the sense of current was: with reference to ground → second capacitor C 2 → the 3rd diode D3 → second inductance L, 2 → thyristor Q2 → civil power input Line, this moment, second inductance L 2 released energy and civil power input Line while powering load.
Under the situation of battery pack 12a power supply, the working method of pfc circuit 14a is following:
Thyristor Q3 and all conductings of thyristor Q8.When the first switching device Q4 and second switch device Q5 conducting simultaneously; The sense of current is: anodal (the BAT+) → thyristor Q3 of battery pack 12a → first inductance L, 1 → the first switching device Q4 → second switch device Q5 → second inductance L, 2 → thyristor Q8 → battery pack 12a negative pole (BAT-); This moment first inductance L 1 and 2 energy storage of second inductance L, first capacitor C 1 and second capacitor C 2 are electric.When the first switching device Q4 and second switch device Q5 simultaneously by the time; The sense of current is: anodal (the BAT+) → thyristor Q3 of battery pack 12a → first inductance L, 1 → the first diode D1 → first capacitor C, 1 → the second capacitor C 2 → the 3rd diode D3 → second inductance L, 2 → thyristor Q8 → battery pack 12a negative pole (BAT-), this moment, first inductance L 1 and second inductance L 2 released energy and battery pack 12a while powering load.
The working method of charger circuit 15a is following:
First capacitor C 1, the 3rd switching device Q6, the 4th switching device Q7, first inductance L 1, the 5th switching device Q9, the 4th diode D4, the 6th diode D6 constitute positive half cycle charging BUCK circuit, and second capacitor C 2, the 6th switching device Q10, second inductance L 2, the 3rd switching device Q6, the 5th switching device Q9, the second diode D2, the 5th diode D5 constitute negative half period charging BUCK circuit.
When pfc circuit 14a is operated in the positive half cycle of city's electrical input signal, the 3rd switching device Q6 and the 5th switching device Q9 conducting.When the 6th switching device Q10 conducting; The charging current direction of charger circuit 15a is: second capacitor C, 2 → the second diode D2 → the 3rd switching device Q6 → battery pack 12a → the 5th switching device Q9 → second inductance L 2 → the 6th switching device Q10 → second capacitor C 2, this moment, battery pack 12a was given in second capacitor C, 2 discharges of pfc circuit 14a charging.When the 6th switching device Q10 ended, the charging current direction of charger circuit 15a was: second inductance L 2 → the 5th diode D5 → battery pack 12a → the 5th switching device Q9 → second inductance L 2, second inductance L 2 released energy and charged to battery pack 12a this moment.
When pfc circuit 14a is operated in the negative half period of city's electrical input signal, the 3rd switching device Q6 and the 5th switching device Q9 conducting.When the 4th switching device Q7 conducting; The charging current direction of charger circuit 15a is: first capacitor C 1 → the 4th switching device Q7 → first inductance L 1 → the 3rd switching device Q6 → battery pack 12a → the 5th switching device Q9 → the 4th diode D4 → first capacitor C 1, this moment, battery pack 12a was given in first capacitor C, 1 discharge of pfc circuit 14a charging.When the 4th switching device Q7 ended, the charging current direction of charger circuit 15a was: first inductance L 1 → the 3rd switching device Q6 → battery pack 12a → the 6th diode D6 → first inductance L 1, first inductance L 1 released energy and charged to battery pack 12a this moment.
Should be understood that the first switching device Q4 in the embodiment of the invention, second switch device Q5, the 4th switching device Q7 and the 6th switching device Q10 can be IGBT, also can be MOSFET, can also be other likes that can realize identical function.The embodiment of the invention does not limit this.
The charger circuit of the embodiment of the invention is that battery pack is charged from the output power taking of pfc circuit, can avoid the influence of civil power input to the input characteristics of charger circuit, thereby improve PFC performance and batteries charging performance.
In addition, charger circuit in the embodiment of the invention and pfc circuit common sparing device also increase the two Buck circuit of minority device formation, can reduce number of devices, reduce cost.
Simultaneously, all can be batteries charging when the positive half cycle of the electrical input signal of the charger circuit in the embodiment of the invention and negative half period, improve charge power in the city.
Fig. 3 is the circuit structure diagram of PFC topology according to another embodiment of the present invention.Fig. 3 is another example of the PFC topology of Fig. 1.
As shown in Figure 3, this PFC topology comprises civil power input module 11b, battery pack 12b, rectification circuit 13b, pfc circuit 14b and charger circuit 15b.
Civil power input module 11b is an example of civil power input module 11 among Fig. 1, comprises civil power input Line.
Battery pack 12b is an example of battery pack 12 among Fig. 1, comprises battery pack BAT.
Rectification circuit 13b is an example of rectification circuit 13 among Fig. 1, comprises thyristor Q1, thyristor Q2, thyristor Q3 and thyristor Q8.
Pfc circuit 14b is an example of pfc circuit 14 among Fig. 1; The Boost circuit and the 2nd Boost circuit that comprise symmetry; Wherein a Boost circuit comprises first inductance L 1, the first switching device Q4, the first diode D1, the second diode D2 and first capacitor C 1, and wherein the first switching device Q4 can be IGBT.The 2nd Boost circuit comprises second inductance L 2, second switch device Q5, the 3rd diode D3, the 4th diode D4 and second capacitor C 2, and wherein second switch device Q5 can be IGBT.
Charger circuit 15b is an example of charger circuit 15 among Fig. 1; Be the Buck circuit; Comprise first inductance L 1, second inductance L 2, first capacitor C 1, second capacitor C 2; Charger circuit 15b comprises that also the first switching device Q4, second switch device Q5, the 7th diode D7, the 8th diode D8, minion are closed device Q11, octavo is closed device Q12, the 9th switching device Q13, the tenth switching device Q14; Wherein minion pass device Q11 and the 9th switching device Q13 can be thyristors, and octavo is closed device Q12 and the tenth switching device Q14 can be IGBT.
Civil power input module 11b and battery pack 12b supply power one of them to this circuit structure, under the situation of civil power input module 11b power supply, charger circuit 15b can charge to battery pack 12b.Under the situation that civil power input module 11b does not supply power, battery pack 12b can supply power.To describe the topological working method of the PFC of Fig. 3 below.
Under the situation of civil power input module 11b power supply, the working method of pfc circuit 14b is following:
When city's electrical input signal is in positive half cycle, thyristor Q1 conducting.When the first switching device Q4 conducting, the sense of current is: civil power input Line → thyristor Q1 → first inductance L, 1 → the first switching device Q4 → reference ground, and first inductance L, 1 energy storage this moment, first capacitor C 1 is an electric.When the first switching device Q4 ended, the sense of current was: civil power input Line → thyristor Q1 → first inductance L, 1 → the first diode D1 → first capacitor C 1 → reference ground, this moment, first inductance L 1 released energy and civil power input Line while powering load.
When city's electrical input signal is in negative half period, thyristor Q2 conducting.When second switch device Q5 conducting, the sense of current is: with reference to ground → second switch device Q5 → second inductance L, 2 → thyristor Q2 → civil power input Line, and second inductance L, 2 energy storage this moment, second capacitor C 2 is an electric.When second switch device Q5 ended, the sense of current was: with reference to ground → second capacitor C 2 → the 3rd diode D3 → second inductance L, 2 → thyristor Q2 → civil power input Line, this moment, second inductance L 2 released energy and civil power input Line while powering load.
Under the situation of battery pack 12b power supply, the working method of pfc circuit 14b is following:
This moment thyristor Q3 and all conductings of thyristor Q8.When the first switching device Q4 and second switch device Q5 conducting simultaneously; The sense of current is: anodal (the BAT+) → thyristor Q3 of battery pack 12b → first inductance L, 1 → the first switching device Q4 → second switch device Q5 → second inductance L, 2 → thyristor Q8 → battery pack 12b negative pole (BAT-); This moment first inductance L 1 and 2 energy storage of second inductance L, first capacitor C 1 and second capacitor C 2 are electric.When the first switching device Q4 and second switch device Q5 simultaneously by the time; The sense of current is: anodal (the BAT+) → thyristor Q3 of battery pack 12b → first inductance L, 1 → the first diode D1 → first capacitor C, 1 → the second capacitor C 2 → the 3rd diode D3 → second inductance L, 2 → thyristor Q8 → battery pack 12b negative pole (BAT-), this moment, first inductance L 1 and second inductance L 2 released energy and battery pack 12b while powering load.
The working method of charger circuit 15b is following:
First capacitor C 1, octavo are closed device Q12, second inductance L 2, the 8th diode D8, the 7th diode D7, the first switching device Q4 and are constituted positive half cycle charging BUCK circuit, and second capacitor C 2, the tenth switching device Q14, first inductance L 1, the 7th diode D7, the 8th diode D8, second switch device Q5 constitute negative half period charging BUCK circuit.
When pfc circuit 14b is operated in the positive half cycle of city's electrical input signal; When octavo is closed device Q12 conducting; The charging current direction of charger circuit 15b is: first capacitor C, 1 → the octavo is closed device Q12 → second inductance L 2 → the 8th diode D8 → battery pack 12b → the 7th diode D7 → first switching device Q4 → first capacitor C 1, and this moment, battery pack 12b was given in first capacitor C, 1 discharge of pfc circuit 14b charging.When octavo pass device Q12 ends; The 9th switching device Q13 conducting; The charging current direction of charger circuit 15b is: second inductance L 2 → the 8th diode D8 → battery pack 12b → the 9th switching device Q13 → second inductance L 2, second inductance L 2 released energy and charged to battery pack 12b this moment.
When pfc circuit 14b is operated in the negative half period of city's electrical input signal; When the tenth switching device Q14 conducting; The charging current direction of charger circuit 15b is: second capacitor C, 2 → second switch device Q5 → the 8th diode D8 → battery pack 12b → the 7th diode D7 → first inductance L 1 → the tenth switching device Q14 → second capacitor C 2, this moment, battery pack 12b was given in second capacitor C, 2 discharges of pfc circuit 14b charging.When the tenth switching device Q14 ends; Minion is closed device Q11 conducting; The charging current direction of charger circuit 15b is: first inductance L, 1 → the minion is closed device Q11 → battery pack 12b → the 7th diode D7 → first inductance L 1, and first inductance L 1 released energy and charged to battery pack 12b this moment.
Should be understood that the first switching device Q4 in the embodiment of the invention, second switch device Q5, octavo are closed device Q12 and the tenth switching device Q14 can be IGBT, also can be MOSFET, can also be other likes that can realize identical function.The embodiment of the invention does not limit this.
The charger circuit of the embodiment of the invention is that battery pack is charged from the output power taking of pfc circuit, can avoid the influence of civil power input to the input characteristics of charger circuit, thereby improve PFC performance and batteries charging performance.
In addition, charger circuit in the embodiment of the invention and pfc circuit common sparing device also increase the two Buck circuit of minority device formation, can reduce number of devices, reduce cost.
Simultaneously, all can be batteries charging when the positive half cycle of the electrical input signal of the charger circuit in the embodiment of the invention and negative half period, improve charge power in the city.
Those of ordinary skills can recognize, the unit and the algorithm steps of each example of describing in conjunction with embodiment disclosed herein can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions still are that software mode is carried out with hardware actually, depend on the application-specific and the design constraint of technical scheme.The professional and technical personnel can use distinct methods to realize described function to each certain applications, but this realization should not thought and exceeds scope of the present invention.
The those skilled in the art can be well understood to, for the convenience described with succinct, the concrete course of work of the system of foregoing description, device and unit can repeat no more at this with reference to the corresponding process among the preceding method embodiment.
In several embodiment that the application provided, should be understood that the system that is disclosed, apparatus and method can realize through other mode.For example, device embodiment described above only is schematically, for example; The division of said unit; Only be that a kind of logic function is divided, during actual the realization other dividing mode can be arranged, for example a plurality of unit or assembly can combine or can be integrated into another system; Or some characteristics can ignore, or do not carry out.Another point, the coupling each other that shows or discuss or directly coupling or communication to connect can be through some interfaces, the INDIRECT COUPLING of device or unit or communication connect, and can be electrically, machinery or other form.
Said unit as separating component explanation can or can not be physically to separate also, and the parts that show as the unit can be or can not be physical locations also, promptly can be positioned at a place, perhaps also can be distributed on a plurality of NEs.Can realize the purpose of present embodiment scheme according to the needs selection some or all of unit wherein of reality.
In addition, each functional unit in each embodiment of the present invention can be integrated in the processing unit, also can be that the independent physics in each unit exists, and also can be integrated in the unit two or more unit.
If said function realizes with the form of SFU software functional unit and during as independently production marketing or use, can be stored in the computer read/write memory medium.Based on such understanding; The part that technical scheme of the present invention contributes to prior art in essence in other words or the part of this technical scheme can be come out with the embodied of software product; This computer software product is stored in the storage medium; Comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out all or part of step of the said method of each embodiment of the present invention.And aforesaid storage medium comprises: various media that can be program code stored such as USB flash disk, portable hard drive, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD.
The above; Be merely embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; Can expect easily changing or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by said protection range with claim.
Claims (10)
1. the power factor correction PFC of uninterrupted power supply topology is characterized in that, comprising:
Civil power input module, battery pack, rectification circuit, pfc circuit and charger circuit, wherein,
The output of said civil power input module and the output of said battery pack are connected in the input of said rectification circuit;
The output of said rectification circuit is connected in the input of said pfc circuit;
The output of said pfc circuit is connected in the input of said charger circuit, is used for to said charger circuit power supply;
The output of said charger circuit is connected in the input of said battery pack, is used for to said batteries charging.
2. PFC topology as claimed in claim 1; It is characterized in that; Said pfc circuit comprises first boost Boost circuit and the 2nd Boost circuit; A wherein said Boost circuit symmetrical is in said the 2nd Boost circuit, and the input of the input of a said Boost circuit and said the 2nd Boost circuit is connected in the output of said rectification circuit, and the output of the output of a said Boost circuit and said the 2nd Boost circuit is connected in the input of said charger circuit.
3. PFC topology as claimed in claim 2; It is characterized in that; A said Boost circuit comprises first inductance, first switching device, first diode, second diode and first electric capacity; The end of the same name of wherein said first inductance is connected in the output of said rectification circuit; The non-same polarity of said first inductance is connected in the negative electrode of the input of said first switching device, said second diode and the anode of said first diode, the output of said first switching device be connected in said second diode anode and said first electric capacity negative pole and be connected in reference to ground, the negative electrode of said first diode is connected in the positive pole of said first electric capacity.
4. PFC topology as claimed in claim 3; It is characterized in that; Said the 2nd Boost circuit comprises second inductance, second switch device, the 3rd diode, the 4th diode and second electric capacity; The non-same polarity of wherein said second inductance is connected in the output of said rectification circuit; The end of the same name of said second inductance is connected in the negative electrode of the output of said second switch device, said the 3rd diode and the anode of said the 4th diode, and the input of said second switch device is connected in negative electrode and said second electric capacity anodal of said the 4th diode and is connected in reference to ground, and the anode of said the 3rd diode is connected in the negative pole of said second electric capacity.
5. PFC topology as claimed in claim 4, said charger circuit is a step-down Buck circuit, and said charger circuit comprises said first inductance, said second inductance, said first electric capacity, said second electric capacity.
6. PFC topology as claimed in claim 5; Said charger circuit also comprises said second diode, said the 4th diode, the 5th diode, the 6th diode, the 3rd switching device, the 4th switching device, the 5th switching device and the 6th switching device; The anode of wherein said the 5th diode is connected in the non-same polarity of said second inductance; The negative electrode of said the 5th diode is connected in the output of said the 3rd switching device and the positive pole of said battery pack; The anode of said the 6th diode is connected in the input of said the 5th switching device and the negative pole of said battery pack; The negative electrode of said the 6th diode is connected in the end of the same name of said first inductance; The input of said the 3rd switching device is connected in the non-same polarity of said first inductance; The output of said the 5th switching device is connected in the end of the same name of said second inductance, and the input of said the 4th switching device is connected in the positive pole of said first electric capacity, and the output of said the 4th switching device is connected in the end of the same name of said first inductance; The input of said the 6th switching device is connected in the non-same polarity of said second inductance, and the output of said the 6th switching device is connected in the negative pole of said second electric capacity.
7. like the said PFC topology of claim 5; Said charger circuit comprises that also said first switching device, said second switch device, the 7th diode, the 8th diode, minion are closed device, octavo is closed device, the 9th switching device and the tenth switching device; The anode of wherein said the 7th diode is connected in the negative pole of said battery pack and the input of said the 9th switching device; The negative electrode of said the 7th diode is connected in the non-same polarity of said first inductance; The anode of said the 8th diode is connected in the end of the same name of said second inductance; The negative electrode of said the 8th diode is connected in the positive pole of said battery pack and the output that said minion is closed device; The input of said minion pass device is connected in the end of the same name of said first inductance; The output of said the 9th switching device is connected in the non-same polarity of said second inductance, and the input of said octavo pass device is connected in the positive pole of said first electric capacity, and the output of said octavo pass device is connected in the non-same polarity of said second inductance; The input of said the tenth switching device is connected in the end of the same name of said first inductance, and the output of said the tenth switching device is connected in the negative pole of said second electric capacity.
8. like claim 6 or 7 described PFC topologys; It is characterized in that; Input signal at said civil power input module is under the situation of positive half cycle or negative half period; The output of the output of a said Boost circuit or said the 2nd Boost circuit is used for to said charger circuit power supply, to be used for to said batteries charging.
9. PFC topology as claimed in claim 6 is characterized in that said the 4th switching device is insulated gate bipolar transistor IGBT or metal oxide semiconductcor field effect transistor MOSFET, and said the 6th switching device is IGBT or MOSFET.
10. PFC topology as claimed in claim 7 is characterized in that it is IGBT or MOSFET that said octavo is closed device, and said the tenth switching device is IGBT or MOSFET.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344870A (en) * | 2013-06-25 | 2013-10-09 | 华为技术有限公司 | Method and device for detecting short circuit of thyristor of uninterrupted power system |
| CN103346607A (en) * | 2013-05-31 | 2013-10-09 | 华为技术有限公司 | Alternating current and direct current conversion device and uninterruptible power supply device |
| CN104716680A (en) * | 2013-12-12 | 2015-06-17 | 伊顿制造（格拉斯哥）有限合伙莫尔日分支机构 | Offline uninterruptible power supply with renewable energy and control method thereof |
| CN106253458A (en) * | 2016-08-17 | 2016-12-21 | 漳州科华技术有限责任公司 | A kind of uninterrupted power source and control method thereof |
| CN109067205A (en) * | 2018-08-02 | 2018-12-21 | 佛山市众盈电子有限公司 | A kind of PFC inductance and the integrated topological structure of battery booster transformer |
| WO2019138320A1 (en) * | 2018-01-10 | 2019-07-18 | International Business Machines Corporation | Boosting battery voltage with boost converters |
| CN110556912A (en) * | 2019-09-16 | 2019-12-10 | 深圳市宝安任达电器实业有限公司 | UPS three-level PFC topological circuit and control method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4827151A (en) * | 1987-02-20 | 1989-05-02 | Kabushiki Kaisha Toshiba | Uninterruptible power supply utilizing a synchronized chopper for power factor improvement |
| CN2689566Y (en) * | 2004-02-10 | 2005-03-30 | 山特电子（深圳）有限公司 | Uninterruptible power supply with battery shared |
| CN101677191A (en) * | 2008-09-19 | 2010-03-24 | 力博特公司 | Ups battery charger and ups |
| CN101685973A (en) * | 2008-09-26 | 2010-03-31 | 力博特公司 | Uninterrupted power supply |
-
2011
- 2011-12-20 CN CN201110430340.4A patent/CN102497095B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4827151A (en) * | 1987-02-20 | 1989-05-02 | Kabushiki Kaisha Toshiba | Uninterruptible power supply utilizing a synchronized chopper for power factor improvement |
| CN2689566Y (en) * | 2004-02-10 | 2005-03-30 | 山特电子（深圳）有限公司 | Uninterruptible power supply with battery shared |
| CN101677191A (en) * | 2008-09-19 | 2010-03-24 | 力博特公司 | Ups battery charger and ups |
| CN101685973A (en) * | 2008-09-26 | 2010-03-31 | 力博特公司 | Uninterrupted power supply |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346607A (en) * | 2013-05-31 | 2013-10-09 | 华为技术有限公司 | Alternating current and direct current conversion device and uninterruptible power supply device |
| CN103346607B (en) * | 2013-05-31 | 2016-08-10 | 华为技术有限公司 | DC-AC conversion device and uninterrupted power supply(ups) |
| CN103344870B (en) * | 2013-06-25 | 2016-01-27 | 华为技术有限公司 | The thyristor method for detecting short circuit of uninterruptible power system and device |
| CN103344870A (en) * | 2013-06-25 | 2013-10-09 | 华为技术有限公司 | Method and device for detecting short circuit of thyristor of uninterrupted power system |
| CN104716680A (en) * | 2013-12-12 | 2015-06-17 | 伊顿制造（格拉斯哥）有限合伙莫尔日分支机构 | Offline uninterruptible power supply with renewable energy and control method thereof |
| CN106253458A (en) * | 2016-08-17 | 2016-12-21 | 漳州科华技术有限责任公司 | A kind of uninterrupted power source and control method thereof |
| CN106253458B (en) * | 2016-08-17 | 2019-05-21 | 漳州科华技术有限责任公司 | A kind of uninterruptible power supply and its control method |
| GB2584235A (en) * | 2018-01-10 | 2020-11-25 | Ibm | Boosting battery voltage with boost converters |
| WO2019138320A1 (en) * | 2018-01-10 | 2019-07-18 | International Business Machines Corporation | Boosting battery voltage with boost converters |
| GB2584235B (en) * | 2018-01-10 | 2022-05-18 | Ibm | Boosting battery voltage with boost converters |
| US10707759B2 (en) | 2018-01-10 | 2020-07-07 | International Business Machines Corporation | Boosting battery voltage with boost converters |
| CN109067205A (en) * | 2018-08-02 | 2018-12-21 | 佛山市众盈电子有限公司 | A kind of PFC inductance and the integrated topological structure of battery booster transformer |
| CN110556912A (en) * | 2019-09-16 | 2019-12-10 | 深圳市宝安任达电器实业有限公司 | UPS three-level PFC topological circuit and control method thereof |
| CN110556912B (en) * | 2019-09-16 | 2024-05-28 | 深圳市宝安任达电器实业有限公司 | UPS three-level PFC topological circuit and control method thereof |
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