CN201045747Y - Ups - Google Patents
Ups Download PDFInfo
- Publication number
- CN201045747Y CN201045747Y CNU2006200462054U CN200620046205U CN201045747Y CN 201045747 Y CN201045747 Y CN 201045747Y CN U2006200462054 U CNU2006200462054 U CN U2006200462054U CN 200620046205 U CN200620046205 U CN 200620046205U CN 201045747 Y CN201045747 Y CN 201045747Y
- Authority
- CN
- China
- Prior art keywords
- voltage
- power supply
- direct current
- current
- uninterrupted power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 238000006243 chemical reaction Methods 0.000 claims description 22
- 230000001737 promoting effect Effects 0.000 claims description 3
- 230000006641 stabilisation Effects 0.000 abstract 1
- 238000011105 stabilization Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Images
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- Dc-Dc Converters (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to an uninterrupted power source, in particular to a line-interactive uninterrupted power source or off-line uninterrupted power source, which utilizes a simple alternating current/direct current converter to replace a power frequency transformer to realize the commercial power voltage stabilization output function, and utilizes a simple direct current/direct current sharing transformer to change a battery voltage-increasing transformer into a rechargeable double-way direct current/direct current converter, and can recover unnecessary and residual energy to a battery, which reduces depletion of energy. Combined with the function, the utility model can reduce the stand-by horsepower depletion, improve the powerfactor-corrective, reduce the voltage and current flow of total harmonic, reduce depletion of devices of users, improve quality of the electricity-supply power source and realize the destination of energy saving in the scope of wide commercial power input.
Description
Technical field
The utility model relates to a kind of uninterrupted power supply, especially online switch type (LINE-INTERACTIVE) uninterrupted power supply or off-line type (OFF-LINE) uninterrupted power supply.
Background technology
Uninterrupted power supply (ups) Unity is a kind of ac power supply apparatus, at present, known online switch type uninterrupted power supply or off-line type uninterrupted power supply, if only at input and output termination filter, can only be used in narrow mains input voltage scope, realize the input range variation in voltage that civil power is wide, generally all adopt public frequency power transformer to do single adjustment that tap changing reaches line voltage of organizing or organize more.As shown in Figure 2, be typical online switch type uninterrupted power supply schematic diagram, guarantee that the subscriber equipment of receiving this device output continues operation under the voltage range of safety; If there is not the uninterrupted power supply that installs this voltage adjusting device additional, will change battery-powered in that line voltage is too high or too low, during real the power failure, this uninterrupted power supply(ups) just loses the function that uninterrupted power supply is provided, so use in the bigger area of civil power range changing or adjusting device that the place all will install this line voltage additional.The shortcoming of this device is to adopt relay to utilize Industrial Frequency Transformer to organize the voltage tap switched voltage more at present, can produce surge voltage during switching and influence the power supply quality, and used Industrial Frequency Transformer, no matter need to do the voltage adjustment, and there is not input work because of enhanced feature at any time all in loss power (copper loss+iron loss).Known online switch type uninterrupted power supply or off-line type uninterrupted power supply, its battery charger can only built-in low current charge devices, change by the long delay power supply, and battery need change big capacity, need install the large current charge device additional.
Summary of the invention
Shortcoming in view of above-mentioned known uninterrupted power supply, main purpose of the present invention is not increase online switch type uninterrupted power supply of raising or off-line type uninterrupted power supply under a lot of costs, it can be used at wide civil power input range, improve power supply quality and complete machine operational efficiency, realize purpose of energy saving.This kind uninterrupted power supply comprises:
One cell apparatus provides direct voltage;
One DC-DC bi-directional conversion device provides to convert cell voltage to high voltage, converts high voltage to the low-voltage recuperated energy and can provide big charging current for the battery charging;
One ac/dc conversion equipment provides direct voltage, during civil power low pressure city's electric boost is also done work because of promoting, and only does full-wave rectification output during the civil power high pressure;
One direct current/ac converter device is exported converting direct-current voltage into alternating-current voltage;
One relay system switches civil power output or uninterrupted power supply power supply output;
One microprocessor (MPU) is mainly done device power management out of the ordinary and inverter switching signal;
One pulse modulator provides PM signal (PWM) to use for ac/dc conversion equipment and DC-DC bi-directional conversion device;
One filter, line voltage directly offer subscriber equipment by filter to output and use in normal range (NR).
Wherein said DC-DC bi-directional conversion device adopts microprocessor and pulse modulator control, realizes three kinds of operational modes of mix operation.Pattern one: provide pwm signal by pulse modulator when powered battery, the Push And Release of microprocessor control signal changes into low-voltage and changes the PM high voltage into and give the AC/DC inverter through rectification.Pattern two: when battery was not powered, the controlled power transistor on the high-voltage output end provided pwm signal by pulse modulator, the Push And Release of microprocessor control signal high-pressure side voltage can be changed into the PM low-voltage through rectification to battery charge.Pattern three: because the ac/dc conversion equipment, can produce excess energy during the work of AC/DC inverter, and output is if connect inductive load (as transformer, motor), also having excess energy instead irritates back on the dc bus through inverter, controlled power transistor on the DC-DC bi-directional conversion device high-voltage output end provides pwm signal by pulse modulator, the Push And Release of microprocessor control signal is sent the excess energy on the dc bus back to battery charge and is improved the complete machine operational efficiency.
Above-mentioned uninterrupted power supply, wherein said ac/dc conversion equipment adopt microprocessor and pulse modulator control to realize mix operation, two kinds of operational modes.Pattern one: only do full-wave rectification during the normal or high pressure of civil power and become direct current, but output does not adopt electrochemical capacitor filtering storage power, only uses the low capacity polarity free capacitor, so power loss is minimum.Pattern two: when civil power low pressure, represent civil power power supply off-capacity, the controlled power transistor provides pwm signal by pulse modulator on the ac/dc conversion equipment, microprocessor control Push And Release, do boost and merit because of promoting, promote the active volume of civil power power supply, reduce total input harmonic current.
Above-mentioned uninterrupted power supply, wherein said AC/DC inverter is a typical full-bridge inverting (INVERTER) device, use 4 controlled (PCC) powers to do change over switch, adopt microprocessor to provide PM signal (PWM) to provide string wave impulse modulating signal (SPWM) that direct voltage or PM high voltage are changed after filter circuit after filter circuit converts the AC power or the employing microprocessor of the ladder type ripple of similar sine wave to direct voltage or the conversion of PM high voltage, produce the AC power of string ripple, the Push And Release output of control relay offers subscriber equipment.
Above-mentioned uninterrupted power supply; wherein said pulse modulator is typical PWM IC; as 494; 3524; 3525; but utilize microprocessor control to make single PWM IC become the PWM IC of control of multichannel output voltage and multichannel current protection; provide pwm signal to a controlled power transistor in the ac/dc conversion equipment simultaneously; the controlled power transistor that cell voltage boosts in the DC-DC bi-directional conversion device two controlled power transistors and battery charge store with excess energy; by microprocessor control Push And Release, and the control of respectively installing output voltage values.
The utility model adopts above-mentioned described technical scheme, use a spot of control element and simple circuit framework, reduce the loss of energy, and can reduce the standby power loss, improve input work and reduce total harmonic current because of (POWER FACTER CORRECTIVE), wide civil power input range can normally move, and improves power supply quality and complete machine operational efficiency, realizes purpose of energy saving.
Description of drawings
Fig. 1 is a structure block schematic diagram of the present utility model.
Fig. 2 is conventional online switch type (LINE-INTERACTIVE) uninterrupted power supply(ups) structure block schematic diagram.
Fig. 3 is a schematic diagram of the present utility model.
Embodiment
Fig. 1,3 is a specific embodiment of the utility model.As shown in Figure 1, the utility model mainly comprises: filter 1, ac/dc conversion equipment 2, battery 3, DC-DC bi-directional conversion device 4, pulse modulator 5, relay system 6, AC/DC inverter 7, microprocessor 8 members such as grade.Wherein, this input filter 1 at civil power just often to civil power filtering again through relay system 6 output powers, and this relay system 6 can switch the source of supply of electric power when civil power is undesired.In order when the line voltage change is bigger, to provide burning voltage, subscriber equipment for output uses, rather than civil power cut off change battery-powered, when this ac/dc conversion equipment 2 is can be with the line voltage change bigger, alternating voltage is changed into direct voltage to dc bus, and AC/DC inverter 7 can be reverse into alternating voltage with the voltage on the dc bus, through relay system 6, provide stable voltage to use for the subscriber equipment of output.As shown in Figure 3, this ac/dc conversion equipment 2 is formed full bridge rectifier by D1～D4, forms boost circuit structure by L1, Q1, D5.Directly be rectified into direct voltage to dc bus by full bridge rectifier when line voltage is too high, booster circuit is not worked; Line voltage is crossed booster circuit work when low, the civil power low-voltage is boosted on the dc bus, and the merit that promotes input because of, reduce harmonic current.Q1 on this booster circuit provides PWM 1 signal by pulse modulator 5, output voltage feeds back to pulse modulator 5 through VFB1 and adjusts the PWM width, and feed back to microprocessor 8 and detect anti-deficient voltage and whether judge normally whether Q 1 normal, by microprocessor 8, the high electronegative potential of control S3 is realized PWM1.Whether the switch of signal is further controlled booster circuit and is worked.
As shown in Figure 3; AC/DC inverter 7 is formed the full bridge inverter structure by Q5～Q8; L2, C2 form filter circuit; and have a resistance detection electric current I FB2 to feed back to pulse modulator 5 and microprocessor 8, do overcurrent protection when AC/DC inverter 7 output overcurrent or when unusual.The SPWM signal of Q5～Q8 is provided by microprocessor 8, and the output inverter voltage feeds back to microprocessor 8 through VFB2, does the adjustment of SPWM signal.When civil power interrupt or during electric voltage exception with battery-powered, through DC-DC bi-directional conversion device 4 cell voltage is boosted and to deliver on the dc bus, be reverse into alternating voltage through AC/DC inverter 7, provide stable voltage to use through relay system 6 again for the subscriber equipment of output.
As shown in Figure 3, this DC-DC bi-directional conversion device is formed typical push-pull type (PUSH-PULL) circuit structure by Q2, Q3, T1, D6, D7, provide PWM2, PWM4 signal to Q2, Q3 by pulse modulator 5, control the switch that the high electronegative potential of S1, S4 is realized PWM2, PWM4 signal by microprocessor 8, further control push-pull type (PUSH-PULL) circuit and whether work.IFB3 feeds back to pulse modulator 5 with sensed current signal, adjusts the PWM width and does overcurrent protection, and feed back to microprocessor and whether detect operate as normal.When push-pull type (PUSH-PULL) circuit is not worked, form flyback (FLYBACK) or buck (BUCK) circuit structure in addition, as shown in Figure 3 the anti-battery charge of sending back to of the excess energy on the dc bus is utilized again by Q4, T1, D8, C3.Q4, PWM3 signal are provided by pulse modulator 5; do Signal Spacing through pulse transformer T2 and give Q4; output end voltage feeds back to pulse modulator 5 through VFB3 and adjusts the PWM width; IFB3 feeds back to pulse modulator 5 with sensed current signal and adjusts the PWM width and do overcurrent protection, and feeds back to microprocessor and whether detect operate as normal.If when not having excess energy on the dc bus, the circuit of being made up of Q4 becomes the pattern to battery charge, provides the charging modes of deciding voltage and constant current source to battery charge.Owing to shared the T1 transformer, so can directly provide big electric current, directly realize the long delay power supply for the charging of macrocell group, do not need to dispose in addition big charging current device, save cost.
Claims (1)
1. uninterrupted power supply is characterized in that it comprises:
One cell apparatus provides direct voltage;
One DC-DC bi-directional conversion device provides to convert cell voltage to high voltage, converts high voltage to the low-voltage recuperated energy and can provide big charging current for the battery charging;
One ac/dc conversion equipment provides direct voltage, during civil power low pressure city's electric boost is also done work because of promoting, and only does full-wave rectification output during the civil power high pressure;
One direct current/ac converter device is exported converting direct-current voltage into alternating-current voltage;
One relay system switches civil power output or uninterrupted power supply power supply output;
One microprocessor is mainly done device power management out of the ordinary and inverter switching signal;
One pulse modulator provides the PM signal to use to ac/dc conversion equipment and DC-DC bi-directional conversion device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200462054U CN201045747Y (en) | 2006-09-25 | 2006-09-25 | Ups |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200462054U CN201045747Y (en) | 2006-09-25 | 2006-09-25 | Ups |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201045747Y true CN201045747Y (en) | 2008-04-09 |
Family
ID=39309216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200462054U Expired - Lifetime CN201045747Y (en) | 2006-09-25 | 2006-09-25 | Ups |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201045747Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102222965A (en) * | 2011-06-29 | 2011-10-19 | 黄俊嘉 | Hybrid UPS (uninterruptible power supply) |
| CN110719028A (en) * | 2018-07-13 | 2020-01-21 | 台达电子工业股份有限公司 | Compensation control system and method |
-
2006
- 2006-09-25 CN CNU2006200462054U patent/CN201045747Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102222965A (en) * | 2011-06-29 | 2011-10-19 | 黄俊嘉 | Hybrid UPS (uninterruptible power supply) |
| CN110719028A (en) * | 2018-07-13 | 2020-01-21 | 台达电子工业股份有限公司 | Compensation control system and method |
| CN110719028B (en) * | 2018-07-13 | 2021-03-19 | 台达电子工业股份有限公司 | Compensation control system and method |
| US11139669B2 (en) | 2018-07-13 | 2021-10-05 | Delta Electronics, Inc. | Converter system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151218 Address after: 215100, Jiangsu, Suzhou, Xiangcheng District friendship garden 115 Patentee after: Li Bo Address before: 200032, Shanghai, Zhongshan two South Road, No. 5, building 520, Xuhui District Patentee before: Aloha Power Electronics (Shanghai) Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080409 |
|
| EXPY | Termination of patent right or utility model |