CN215498412U - Double-conversion UPS power supply - Google Patents
Double-conversion UPS power supply Download PDFInfo
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- CN215498412U CN215498412U CN202122074817.1U CN202122074817U CN215498412U CN 215498412 U CN215498412 U CN 215498412U CN 202122074817 U CN202122074817 U CN 202122074817U CN 215498412 U CN215498412 U CN 215498412U
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- 230000009977 dual effect Effects 0.000 claims description 4
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- 238000010586 diagram Methods 0.000 description 3
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- 230000003321 amplification Effects 0.000 description 1
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- 238000003199 nucleic acid amplification method Methods 0.000 description 1
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Abstract
The utility model discloses a double-conversion UPS (uninterrupted power supply), which relates to the technical field of UPS power supply control and comprises a super capacitor module, a storage battery pack module, a first switch control module, a second switch control module, an electric quantity detection module, a charge and discharge control module, a main control module, a clock module and an inversion module; the super capacitor module and the storage battery pack module are used for providing electric energy, the first switch control module and the second switch control module respectively control the input electric energy, the electric quantity detection module detects the electric quantity of the power supply, the charge-discharge control module controls the storage battery pack module and the super capacitor module to charge and discharge, and the main control module is used for receiving signals and controlling the switch to work. The double-conversion UPS power supply adopts a complementary power supply mode of the super capacitor and the storage battery pack to supply power, and the power supply mode of the super capacitor and the storage battery pack is intelligently controlled by matching the integrated circuit with electric quantity detection, so that the power supply efficiency and the safety of the double-conversion UPS power supply are improved.
Description
Technical Field
The utility model relates to the technical field of UPS power supply control, in particular to a double-conversion UPS power supply.
Background
UPS (Uninterruptible Power Supply) is an Uninterruptible Power Supply with an energy storage device, and is mainly used for providing an uninterrupted Power Supply for partial equipment with higher requirements on Power stability, along with the continuous development of science and technology, UPS is also in continuous optimization, most of various UPS Power supplies adopt rechargeable storage batteries as standby Power supplies to provide electric energy for electric equipment, but because the storage batteries have short service life, need periodic maintenance, and are sensitive to ambient temperature and other defects, the application field and the service life of the UPS Power supplies are limited, in addition, the Power supplies have a plurality of uncertain factors and are in a non-use state for a long time, the standby Power supplies can not work normally, the reliability and the safety of the UPS Power supplies are greatly reduced, and another Power Supply mode needs to be adopted to coordinate to Supply Power to improve the Power Supply efficiency of the storage batteries.
Disclosure of Invention
Embodiments of the present invention provide a dual-conversion UPS power supply to solve the problems set forth in the background art.
In accordance with an embodiment of the present invention, a dual-conversion UPS power supply is provided, the dual-conversion UPS power supply comprising: the system comprises a super capacitor module, a storage battery pack module, a first switch control module, a second switch control module, an electric quantity detection module, a charge and discharge control module, a main control module, a clock module and an inversion module;
the super capacitor module and the storage battery pack module are used for storing energy and providing standby electric energy for the double-conversion UPS;
the first switch control module controls the work of the super capacitor module by connecting the super capacitor module and the charge and discharge control module;
the second switch control module controls the work of the super capacitor module by connecting the storage battery pack module and the charge and discharge control module;
the electric quantity detection module is used for detecting the voltage signal output by the first switch control module through connecting with the second end of the second switch control module;
the charge and discharge control module is used for controlling the storage battery pack module and the super capacitor module to charge and discharge in a bidirectional two-way DC-DC conversion mode;
the main control module is used for receiving the voltage signal output by the electric quantity detection module, controlling the first switch control module and the second switch control module to work and outputting a driving signal;
the clock module is used for providing a clock signal for the main control module;
the inverter module is used for converting input alternating current into direct current and converting the direct current into alternating current.
Compared with the prior art, the utility model has the beneficial effects that: the double-conversion UPS power supply adopts a complementary power supply mode of the super capacitor and the storage battery pack to provide standby electric energy for the double-conversion UPS power supply, and the integrated circuit is matched with the electric quantity detection to intelligently control the power supply mode of the super capacitor and the storage battery pack, so that the work load of the storage battery pack is lightened, the service life of the storage battery pack is prolonged, the power supply efficiency of the double-conversion UPS power supply is improved, the charge-discharge control is optimized, and the safety of the double-conversion UPS power supply is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 is a schematic block diagram of a dual conversion UPS power supply according to an embodiment of the present invention.
Fig. 2 is a circuit diagram of a standby power control circuit of a dual-conversion UPS power supply according to an embodiment of the present invention.
Fig. 3 is a circuit diagram of an electric quantity detection module according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention provides a dual-conversion UPS power supply, including: the system comprises a super capacitor J2 module 1, a storage battery J1 module 2, a first switch control module 3, a second switch control module 4, an electric quantity detection module 5, a charge and discharge control module 6, a main control module 7, a clock module 8 and an inversion module 9;
specifically, a super capacitor J2 module 1 and a storage battery J1 module 2 are used for storing energy and providing standby electric energy for the double-conversion UPS;
the first switch control module 3 is used for controlling the work of the super capacitor J2 module 1 by connecting the super capacitor J2 module 1 with the charge and discharge control module 6; the third end of the first switch control module 3 is connected with the first end of the main control module 7;
the second switch control module 4 is used for controlling the work of the super capacitor J2 module 1 by connecting the storage battery J1 module 2 with the charge-discharge control module 6; the third end of the second switch control module 4 is connected with the second end of the main control module 7;
the electric quantity detection module 5 is used for detecting the voltage signal output by the first switch control module 3 through connecting the second ends of the first switch control module and the second switch control module 4; the second end of the electric quantity detection module 5 is connected with the first end of the charge-discharge control module 6;
the charging and discharging control module 6 is used for controlling the storage battery J1 module 2 and the super capacitor J2 module 1 to charge and discharge in a bidirectional two-way DC-DC conversion mode; the second end of the charge and discharge control module 6 is connected with the first end of the inverter module 9;
the main control module 7 is used for receiving the voltage signal output by the electric quantity detection module 5, controlling the first switch control module 3 and the second switch control module 4 to work, and outputting a driving signal; the fourth end of the main control module 7 is connected with the fourth end of the charge-discharge control module 6;
the clock module 8 is used for providing a clock signal for the main control module 7;
the inverter module 9 is used for converting input alternating current into direct current and converting the direct current into alternating current; the clock module 8 is connected with the sixth end of the main control module 7, and the second end of the inverter module 9 is connected with the fifth end of the main control module 7.
In a specific embodiment, the super capacitor J2 module 1 supplies power through a super capacitor J2, and the battery pack J1 module 2 supplies power through a battery pack J1, which is not described herein again; the first switch control module 3 and the second switch control module 4 have the same structure, and the first switch control module 3 and the second switch control module 4 can respectively control the super capacitor J2 module 1 and the storage battery J1 module 2 to provide electric energy by adopting a switch tube; the electric quantity detection module 5 can adopt a differential isolation circuit to detect the output voltage, or directly detect the output voltage through resistance voltage division; the main control module 7 can control the double-conversion UPS power supply to work in a mode that a DSP or a singlechip is matched with a control mode of a driver; the clock module 8 may adopt an oscillator to provide a clock signal for the main control module 7, which is not described herein; the charge and discharge control module 6 can adopt a bidirectional two-way DC-DC conversion circuit to carry out bidirectional DC-DC change, and the reliability of the module is improved by the two-way DC-DC conversion circuit; the inverter module 9 adopts a bidirectional inverter circuit to realize the conversion of alternating current and direct current, which is not described herein.
Example 2: referring to fig. 2 and 3 based on embodiment 1, in an embodiment of the dual-conversion UPS power supply of the present invention, the super capacitor J2 module 1 includes a first internal resistor RC and a super capacitor J2; the first switch control module 3 comprises a first switch tube M1, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a second switch tube N1 and a first diode D1;
specifically, the super capacitor J2 is connected to the drain of the first switch tube M1 through a first internal resistor RC, the source of the first switch tube M1 is connected to the first resistor R1 and the cathode of the first diode D1, the gate of the first switch tube M1 is connected to the other end of the first resistor R1 and the anode of the first diode D1 and is connected to the collector of the second switch tube N1 through the second resistor R2, the base of the second switch tube N1 is connected to the first end of the third resistor R3 and the fourth resistor R4, and the other end of the fourth resistor R4, the emitter of the second switch tube N1 and the other end of the super capacitor J2 are grounded.
Further, the battery pack J1 module 2 includes a battery pack J1; the second switch control module 4 has the same structure as the first switch control module 3;
specifically, battery pack J1 is connected to the input terminal of second switch control module 4, and the output terminal of second switch control module 4 is connected to the cathode of the first diode.
Further, the power detection module 5 includes a fifth resistor R5, a reference voltage source J3, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a first operational amplifier a1, a fifth capacitor C5, a second operational amplifier a2, a sixth capacitor C6, a ninth resistor R9, a coupler U2, a tenth resistor R10, and a first power supply + 5V;
specifically, a first end of the fifth resistor R5 is connected to the cathode of the first diode D1, a second end of the fifth resistor R5 is connected to the inverting terminal of the first operational amplifier a1 and is connected to the output terminal of the first operational amplifier a1, the in-phase terminal of the fifth capacitor C5 and the in-phase terminal of the second operational amplifier a2 through the seventh resistor R7, the reference voltage source J3 is connected to the eighth resistor R8 and the in-phase terminal of the first operational amplifier a1 through the sixth resistor R6, the inverting terminal of the second operational amplifier a2 is connected to the output terminal of the second operational amplifier a2, the sixth capacitor C6 and the first end of the coupler U2, the other end of the eighth resistor R8, the other end of the fifth capacitor C5, the other end of the sixth capacitor C6 and the ninth resistor R9 are grounded, the other end of the ninth resistor R9 is connected to the second end of the coupler U2, and the third end of the coupler U2 is connected to the first resistor R10 + V5 + power source.
Further, the charge and discharge control module 6 includes a first inductor L1, a second inductor L2, a third inductor L3, a second capacitor C2, a third switching tube VT1, a fourth switching tube VT2, a fifth switching tube VT3, a sixth switching tube VT4, a third capacitor C3, and a fourth capacitor C4;
specifically, the first inductor L1 is connected to the cathode of the first diode D1, the other end of the first inductor L1 is connected to the second inductor L2, the third inductor L3 and the second capacitor C2, the other end of the second inductor L2 is connected to the emitter of the sixth switching tube VT4 and the collector of the fifth switching tube VT3, the other end of the third inductor L3 is connected to the collector of the third switching tube VT1 and the emitter of the fourth switching tube VT2, the collector of the sixth switching tube VT4 is connected to the collector of the fourth switching tube VT2 and the fourth capacitor C4, the other end of the second capacitor C2, the emitter of the third switching tube VT1 and the emitter of the fifth switching tube 3 are connected to the third capacitor C3, and the other end of the third capacitor C3 and the other end of the fourth capacitor C4 are grounded.
Further, the main control module 7 includes a first controller U1;
specifically, a first end of the first controller U1 is connected to a second end of the third resistor R3, a third end of the first controller U1 is connected to a fourth end of the coupler U2, and a fourth end, a fifth end, a sixth end and a seventh end of the first controller U1 are sequentially connected to a gate of the third switching tube VT1, a gate of the fourth switching tube VT2, a gate of the fifth switching tube VT3 and a gate of the sixth switching tube VT4, respectively.
In a specific embodiment, the first switch tube M1 may be a P-channel enhancement MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor), where ME85P03 may be selected, the second switch tube N1 may be a NPN Transistor with a model of ZN3904, and when the first controller U1 outputs a low level, the second switch tube N1 is turned off, the first switch tube M1 is also turned off, and when the first controller U1 outputs a high level, the second switch tube N1 and the first switch tube M1 are sequentially turned on; the first operational amplifier A1 and the second operational amplifier A2 can be LM358 or TL082 dual operational amplifiers, the first operational amplifier A1 forms a differential amplification operator, and the second operational amplifier A2 forms a voltage follower, so that signal isolation interference is enhanced; the coupler U2 can be a TLP180 photocoupler to isolate the output voltage signal; the third switching tube VT1, the fourth switching tube VT2, the fifth switching tube VT3 and the sixth switching tube VT4 may be IGBTs (Insulated Gate Bipolar transistors), the third switching tube VT1, the fourth switching tube VT2, the fifth switching tube VT3 and the sixth switching tube VT4 respectively form a bidirectional DC-DC conversion circuit, and the bidirectional DC-DC conversion circuit is driven and controlled by the first controller U1.
In the embodiment of the present invention, when the mains voltage is normal, the dual-conversion UPS power supply does not work, and at this time, the main control module 7, due to the control of the clock module 8, can periodically control the first switch control module 3 and the second switch control module 4 to close, and when the first switch control module 3 is closed, detects the electric quantity of the super capacitor J2 module 1, and similarly, when the second switch control module 4 is closed, detects the electric quantity of the storage battery J1 module 2, and if the electric quantity of the super capacitor J2 module 1 is insufficient, it can control the first switch control module 3 to be turned on and control the charge-discharge control module 6 to charge at the same time, and similarly, when the electric quantity of the storage battery module is insufficient; when the mains voltage is cut off, the double-conversion UPS starts to work, when the electric quantity of the storage battery J1 module 2 and the electric quantity of the super capacitor J2 module 1 are full, the two modules supply power at the same time, when the electric quantity of one module is insufficient, the other module supplies power, in order to ensure the safety of the power, the module with the insufficient electric quantity cannot be charged, the charge and discharge control module 6 adopts a bidirectional two-way DC-DC conversion mode, in the charge and discharge control module 6, the third switching tube VT1 and the fourth switching tube VT2 form one path of DC-DC, the fifth switching tube VT3 and the sixth switching tube VT4 form the other path of DC-DC, and when one path of DC-DC fails, the other path of DC-DC conversion is started.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. Double-conversion UPS power supply, its characterized in that:
the dual conversion UPS power supply includes: the system comprises a super capacitor module, a storage battery pack module, a first switch control module, a second switch control module, an electric quantity detection module, a charge and discharge control module and a main control module;
the super capacitor module and the storage battery pack module are used for storing energy and providing standby electric energy for the double-conversion UPS;
the first switch control module controls the work of the super capacitor module by connecting the super capacitor module and the charge and discharge control module;
the second switch control module controls the work of the super capacitor module by connecting the storage battery pack module and the charge and discharge control module;
the electric quantity detection module is used for detecting the voltage signal output by the first switch control module through connecting with the second end of the second switch control module;
the charge and discharge control module is used for controlling the storage battery pack module and the super capacitor module to charge and discharge in a bidirectional two-way DC-DC conversion mode;
the main control module is used for receiving the voltage signal output by the electric quantity detection module, controlling the first switch control module and the second switch control module to work and outputting a driving signal.
2. The dual-converted UPS power supply of claim 1, further comprising: the clock module and the inversion module;
the clock module is used for providing a clock signal for the main control module;
the inverter module is used for converting input alternating current into direct current and converting the direct current into alternating current;
the clock module is connected with the sixth end of the main control module, and the second end of the inversion module is connected with the fifth end of the main control module.
3. The dual-conversion UPS power supply of claim 2, wherein the super capacitor module comprises a first internal resistance and a super capacitor; the first switch control module comprises a first switch tube, a first resistor, a second resistor, a third resistor, a fourth resistor, a second switch tube and a first diode;
the super capacitor is connected with a drain electrode of the first switch tube through the first internal resistor, a source electrode of the first switch tube is connected with the first resistor and a cathode of the first diode, a grid electrode of the first switch tube is connected with the other end of the first resistor and an anode of the first diode and is connected with a collector electrode of the second switch tube through the second resistor, a base electrode of the second switch tube is connected with a first end of the third resistor and the fourth resistor, and the other end of the fourth resistor, an emitter electrode of the second switch tube and the other end of the super capacitor are grounded.
4. The dual conversion UPS power supply of claim 3 wherein the battery pack module comprises a battery pack; the structure of the second switch control module is the same as that of the first switch control module;
the storage battery pack is connected with the input end of the second switch control module, and the output end of the second switch control module is connected with the cathode of the first diode.
5. The dual-conversion UPS power supply of claim 3, wherein the power detection module comprises a fifth resistor, a reference voltage source, a sixth resistor, a seventh resistor, an eighth resistor, a first operational amplifier, a fifth capacitor, a second operational amplifier, a sixth capacitor, a ninth resistor, a coupler, a tenth resistor, and the first power supply;
the first end of the fifth resistor is connected with the cathode of the first diode, the second end of the fifth resistor is connected with the inverting end of the first operational amplifier and is connected with the output end of the first operational amplifier, the in-phase end of the fifth capacitor and the in-phase end of the second operational amplifier through the seventh resistor, the reference voltage source is connected with the eighth resistor and the in-phase end of the first operational amplifier through the sixth resistor, the inverting end of the second operational amplifier is connected with the output end of the second operational amplifier, the sixth capacitor and the first end of the coupler, the other end of the eighth resistor, the other end of the fifth capacitor, the other end of the sixth capacitor and the ninth resistor are grounded, the other end of the ninth resistor is connected with the second end of the coupler, and the third end of the coupler is connected with the first power source through the tenth resistor.
6. The dual-conversion UPS of claim 5, wherein the charge-discharge control module comprises a first inductor, a second inductor, a third inductor, a second capacitor, a third switch tube, a fourth switch tube, a fifth switch tube, a sixth switch tube, a third capacitor and a fourth capacitor;
the first inductor is connected with the cathode of the first diode, the other end of the first inductor is connected with the second inductor, the third inductor and the second capacitor, the other end of the second inductor is connected with the emitter of the sixth switching tube and the collector of the fifth switching tube, the other end of the third inductor is connected with the collector of the third switching tube and the emitter of the fourth switching tube, the collector of the sixth switching tube is connected with the collector of the fourth switching tube and the fourth capacitor, the other end of the second capacitor, the emitter of the third switching tube and the emitter of the fifth switching tube are connected with the third capacitor, and the other end of the third capacitor and the other end of the fourth capacitor are grounded.
7. The dual-conversion UPS power supply of claim 6, wherein the master control module comprises a first controller;
the first end of the first controller is connected with the second end of the third resistor, the third end of the first controller is connected with the fourth end of the coupler, and the fourth end, the fifth end, the sixth end and the seventh end of the first controller are respectively connected with the grid electrode of the third switching tube, the grid electrode of the fourth switching tube, the grid electrode of the fifth switching tube and the grid electrode of the sixth switching tube in sequence.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122074817.1U CN215498412U (en) | 2021-08-31 | 2021-08-31 | Double-conversion UPS power supply |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122074817.1U CN215498412U (en) | 2021-08-31 | 2021-08-31 | Double-conversion UPS power supply |
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| CN215498412U true CN215498412U (en) | 2022-01-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115856702A (en) * | 2023-03-02 | 2023-03-28 | 深圳华泰源通技术服务有限公司 | UPS power supply detection device |
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- 2021-08-31 CN CN202122074817.1U patent/CN215498412U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115856702A (en) * | 2023-03-02 | 2023-03-28 | 深圳华泰源通技术服务有限公司 | UPS power supply detection device |
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