CN201075712Y - Energy-saving type uninterrupted power supply system - Google Patents
Energy-saving type uninterrupted power supply system Download PDFInfo
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- CN201075712Y CN201075712Y CNU2007200540700U CN200720054070U CN201075712Y CN 201075712 Y CN201075712 Y CN 201075712Y CN U2007200540700 U CNU2007200540700 U CN U2007200540700U CN 200720054070 U CN200720054070 U CN 200720054070U CN 201075712 Y CN201075712 Y CN 201075712Y
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Abstract
The utility model discloses an energy-saving uninterrupted power supply system which is that: a 1 model transformer that outputs the input power to the load end, a chopping wave circuit that controls a secondary coil of the 1 model transformer to realize the voltage-stabilizing function, a 1 model inverter that controls the chopping wave circuit, a 2 model transformer that receives the feedback current of the load at the output end or outputs the battery current to the load, a 2 model inverter and a battery that control the charge/discharge AC/DC-DC/AC conversion of the battery, a driver unit drives the 1 model inverter and the 2 model inverter, a central microprocessor that drives the 1 model and 2 model inverters by the driver unit according to the pulse width modulation PWM signal and a characteristic full digital and uninterruptible power USP system which controls the function of the whole system by applying a software program and is formed by a high speed detecting unit of a central microprocessor, an operation keyboard and an LCD. In order to maximize the efficiency, the input voltage of the utility model is stabilized by the 1 model transformer and is directly output to the load, thus improving the conversion efficiency, avoiding the pollution to the power grid and prolonging the service life of the equipment.
Description
[technical field]
The utility model relates to uninterrupted power supply, relates in particular to a kind of energy-saving uninterrupted power-supply system.
[background technology]
Generally speaking, medium-and-large-sized information processing system need be accomplished in abnormality by UPS supply electric power, causes supply of electric power to be interrupted as reasons such as power failures, and the data of present are preserved.Pressurizer be with after the irregular stabilized input voltage according to the device of rated voltage output, merge the effect that utilization reaching outage continuity and burning voltage with uninterrupted power supply usually.
Fig. 1 is the compound supply unit block diagram of prior art " uninterrupted power supply and pressurizer ".As shown in Figure 1, existing uninterrupted power supply comprises with the composite power source device of voltage stabilizing: will use A/D rectifier 4 that AC power changes direct current into always, will use AC power always and change the DC-DC rectifier 6 of charger 5 that DC power supply charges the battery, stable DC voltage into, direct current changed into the D/A inverter 7 that exchanges supply load, during fault or during overload, power supply commonly used or inverter 7 AC power are done the synchronous switching of switching out-put supply with static switch 8, detect the control of input power supply and switch formations such as digitlization chip CPU 1 synchronously with static switch 8.Unaccounted symbol 2 is the adjusting panels that show battery charging state and power supply power supply state among the figure, and 3 and 9 is filters, and D is a rectifying tube.
Its operation principle is as follows: under the normal operating conditions, civil power by input terminal converts direct current to through A/D rectifier 4, give the battery charge that is connected in the system by charger 5 again, this direct current is transformed into alternating current through D/A inverter 7, outputs to load by synchronous switch unit.This moment, the adjusting overvoltage and the under-voltage output voltage of keeping of DC-DC rectifier 6 stages were rated value.
As mains failure takes place, the direct current of battery by DC-DC rectifier 6 and rectifying tube D after, convert on the D/A inverter 7 alternating current and by synchronous switch unit 8 output to load bring in proof load also can operate as normal under power down mode.
In system's running, send electricity once more as civil power, charger 5 is started working and is battery charge.When abnormal conditions appear in D/A inverter 7, after CPU 1 detects abnormal signal, by synchronous switch unit 8 civil power is directly switch to and enters bypass condition in the load, can see the system exception information this moment on display floater.
As can be seen from the above technical solutions, " uninterrupted power supply and pressurizer " compound supply unit is when the civil power normal condition, civil power converts direct current to through A/D rectifier 4, and this direct current is transformed into alternating current through D/A inverter 7, outputs to load end by synchronous switch unit.
In system's normal course of operation, operating current pass through A/D rectifier, D/A inverter always, the electric energy of himself loss a great deal of, institute's delivery efficiency is 83%-85%;
The long-time running of inverter causes electrical network to produce problems such as high order harmonic component, wave distortion, disturbs peripheral equipment normally to move;
The long-time running of inverter also makes uninterruptible power system integral body generate heat, easily aging, reduction of service life.
[utility model content]
The utility model provides a kind of energy-saving uninterrupted power-supply system at the above-mentioned defective of prior art, with energy savings, reduce harmonic pollution, prolong service life of equipment.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
A kind of energy-saving uninterrupted power-supply system, this system comprises:
Be connected between input switch and the load 1# transformer that control output voltage is stable with primary winding;
Stablize the copped wave loop of 1# transformer output by the voltage/current of control 1# transformer secondary coil;
The 1# inverter of control copped wave loop voltage and electric current;
The battery of supply uninterrupted power supply;
During power failure, battery supply is converted to AC power exports load to, just often, being gone into the feedback power source conversion from load end is the 2# inverter that DC power supply charges the battery;
Be connected between 2# inverter and the 1# transformer output loading end, during normal civil power, the load end out-put supply fed back to the 2# inverter side, during power failure, 2# inverter out-put supply is transferred to the 2# transformer of load end;
Make Current Transformer CT, voltage transformer pt detect input voltage Vi/ input current is, the output voltage V 0/ output current ip of load link, the direct voltage Vd of battery-end of input switch rear end, thereby and adopt the impedance circuit type handle detection signal realize not having postpone, the high speed detection unit of high speed detection;
The various function setting values that receive signals such as the detected input/output voltage in high speed detection unit, I/O electric current, direct voltage and button typing compare processing, the central microprocessor of functions such as realization uninterrupted power supply, voltage stabilizing function and various supervision, demonstration, protection;
Control the driver element of the pulse-width signal PWM output of 1# inverter and 2# inverter according to pulse-width signal PWM in the central microprocessor;
For the operator carries out various function setting and adjusts the keyboard that set point is operated usefulness;
The LCD LCD that shows various states, display operation menu and set point.
Use the Presentation Function of microprocessor supervisory keyboard typing signal processing and display, and, separate formation with central microprocessor with the keyboard and the display of communication modes processing with central microprocessor.
Described display is a LCD.
As can be seen from the above technical solutions, the utility model is when the civil power regular supply, in order to make maximizing efficiency, input voltage is directly exported to load after the voltage stabilizing of 1# transformer, improves conversion efficiency, operating current does not pass through from inverter simultaneously, avoided the long-time running of inverter, solved electrical network and produced high order harmonic component, wave distortion problem, made equipment operation normal, system's caloric value is reduced, and prolonged the useful life of equipment.
[description of drawings]
Fig. 1 is the block diagram of conventional art " uninterrupted power supply/stabilized voltage power supply " composite power source device;
Fig. 2 is the embodiment block diagram according to the utility model uninterruptible power system;
Fig. 3 is another embodiment block diagram according to the utility model uninterruptible power system;
Fig. 4 is the simple loop diagram according to the utility model uninterruptible power system;
Wherein symbol description is as follows in the accompanying drawing:
10:1# transformer 11: input switch
12: static switch 20: the copped wave loop
30:1# inverter 40: battery
50:2# inverter 60:2# transformer
70: driver element 80: the high speed detection unit
90: central microprocessor 91: the pulse-width signal generating unit
100: operation keyboard 110: liquid crystal display
120: the I/O control unit
[embodiment]
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail introduction:
Fig. 2 is the embodiment block diagram according to the energy-saving uninterrupted power-supply system of the utility model.
Referring to shown in Figure 2, the energy-saving uninterrupted power-supply system of the utility model comprises: the input power supply is by the 1# transformer 10 of input switch 11 through 1 coil control output voltage supply load; Control the copped wave loop 20 of 10 pairs of load outputs of 1# transformer by the voltage/current of control 1# transformer 10 secondary coils; The 1# inverter 30 of control copped wave loop 20 voltage/currents; During outage, supply the battery 40 of uninterrupted electric power; During outage battery 40 power source conversion are become AC power output, or during civil power normal power supply state, gone into the feedback power supply, convert the 2# inverter 50 that DC power supply is given battery 40 chargings to from load end; Be connected between 2# inverter 50 and the 1# transformer output, during civil power normal power supply state, the load end power supply to 2# inverter 50 feedbacks, during outage, received the 2# transformer 60 that the battery supply that comes by 50 conversions of 2# inverter is exported to load end again.
Current Transformer CT and voltage transformer pt are detected respectively: input switch 11 rear end input voltage/electric currents, load link output voltage, battery 40 direct voltages, use the impedance loop to realize the high speed detection unit 80 of no time of delay of high speed detection detection signal; The various function setting values that receive signals such as high speed detection unit 80 detected input/output voltages, I/O electric current, direct voltage and button typing compare processing, the central microprocessor 90 of functions such as realization uninterrupted power supply, voltage stabilizing function and various supervision, demonstration, protection; The pulse-width signal control 1# inverter 30 in the utilization central microprocessor 90 and the driver element 70 of 2# inverter 50 pulse-width signals output; Carry out the keyboard system 100 of operation usefulness such as various function setting and adjustment set point for the operator; The LCD 110 that shows various states, display operation menu and set point.
Wherein: the instrument transformer that detects I/O terminal voltage electric current is that industry professional is clear, so do not indicate on the figure.In input power supply two electric wires on another line of series connection 1# transformer 10 tandem static switch S CR 12, under abnormality, cut off by central microprocessor 90 controls.
Fig. 3 is another embodiment block diagram according to the utility model uninterruptible power system.
As shown in Figure 3, use the Presentation Function of microprocessor supervisory keyboard typing signal processing and display, and, separate formation with central microprocessor with the keyboard and the display of communication modes processing with central microprocessor.
First row is to show the uninterrupted power supply integral status on the LCD 110, second row is to show the inner various variable data of uninterrupted power supply: battery capacity, cell voltage, battery current---output voltage, output current, input voltage, input current, output frequency, state of temperature and frequency of power cut, date and time, above menu is to use keyboard 100 " upper and lower key ", selects to read.
" MENU ESC " key of keyboard 100 is that control is into and out of menu and numeric shift, key is that the increase and decrease of operand value, the selection and the selection displaying contents of menu are used up and down, the alarm key is used for the ON/OFF alarm, " SET RUN STP " key is used for choice menus and sets numerical value, the control system operation, stops or restarting systems is used during fault.
Keyboard 100 is provided with the warning cancel key can eliminate alarm sound, continues to report to the police by this key again, and alarm continuous alarm when unusual takes place, and reports to the police automatically during normality overload of following moment, stops to report to the police after overload is removed, and also reports to the police during the no-break power unit halted state.
Fig. 4 is the simple loop diagram according to the energy-saving uninterrupted power-supply system of the utility model.
With reference to Fig. 4 the native system basic procedure is described: input power supply Vi is the primary winding that is input to 1# transformer 10 by input switch 11, output to load end again, at this moment, the voltage and current of the secondary coil of copped wave loop 20 control 1# transformers 10, control output voltage Vo realizes the function of voltage stabilizing;
Copped wave loop 20 is to be controlled by 1# inverter 30, and 1# inverter 30 is controlled by pulse-width signal by central microprocessor 90;
During normal civil power input state, load terminal voltage V0 connects 2# inverters 50 by 2 # transformer 60, and 2# inverter 50 is by central microprocessor 90 controls, is converted to DC power supply and gives battery 40 chargings;
Civil power when outage, by central microprocessor 90 control 2# inverters 50, change the DC power supply of battery 40 into AC power, export to load end by 2# transformer 60, realize the uninterrupted power supply function;
Pulse width modulator PWM of the present utility model is used for the control inverter sine voltage, on control mode, adopt the acyclic type pulse width modulation mode, make the internal system ripple voltage reduce by 1/2, this is to be controlled by the pulse-width modulation generating unit 91 in central microprocessor 90 internal processes, the sine wave freuqency keys available of inverter input is provided with, and can move with the circuit different frequency.When high speed detection unit 80 detects input voltage Vi, detect frequency with the zero voltage switching function, input and output frequency are modulated pulsewidth according to the output frequency of setting not simultaneously, and adjusting output frequency automatically is setpoint frequency output.
The above only is preferred embodiment of the present utility model, and all equalizations of being done with the utility model claim scope change and modify, and all should belong to the covering scope of the utility model claim.
Claims (3)
1. an energy-saving uninterrupted power-supply system is characterized in that, this system comprises:
Be connected between input switch and the load 1# transformer that control output voltage is stable with primary winding;
Stablize the copped wave loop of 1# transformer output by the voltage/current of control 1# transformer secondary coil;
The 1# inverter of control copped wave loop voltage and electric current;
The battery of supply uninterrupted power supply;
During power failure, battery supply is converted to AC power exports load to, just often, being gone into the feedback power source conversion from load end is the 2# inverter that DC power supply charges the battery;
Be connected between 2# inverter and the 1# transformer output loading end, during normal civil power, the load end out-put supply fed back to the 2# inverter side, during power failure, 2# inverter out-put supply is transferred to the 2# transformer of load end;
Make Current Transformer CT, voltage transformer pt detect input voltage Vi/ input current is, the output voltage V 0/ output current ip of load link, the direct voltage Vd of battery-end of input switch rear end, thereby and adopt the impedance circuit type handle detection signal realize not having postpone, the high speed detection unit of high speed detection;
The various function setting values that receive signals such as the detected input/output voltage in high speed detection unit, I/O electric current, direct voltage and button typing compare processing, the central microprocessor of functions such as realization uninterrupted power supply, voltage stabilizing function and various supervision, demonstration, protection;
Control the driver element of the pulse-width signal PWM output of 1# inverter and 2# inverter according to pulse-width signal PWM in the central microprocessor;
For the operator carries out various function setting and adjusts the keyboard that set point is operated usefulness;
The display that shows various states, display operation menu and set point.
2. a kind of energy-saving uninterrupted power-supply system according to claim 1, it is characterized in that, use the Presentation Function of microprocessor supervisory keyboard typing signal processing and display, and, separate formation with central microprocessor with the keyboard and the display of communication modes processing with central microprocessor.
3. a kind of energy-saving uninterrupted power-supply system according to claim 1 and 2 is characterized in that described display is a LCD.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200540700U CN201075712Y (en) | 2007-07-13 | 2007-07-13 | Energy-saving type uninterrupted power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200540700U CN201075712Y (en) | 2007-07-13 | 2007-07-13 | Energy-saving type uninterrupted power supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201075712Y true CN201075712Y (en) | 2008-06-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200540700U Expired - Fee Related CN201075712Y (en) | 2007-07-13 | 2007-07-13 | Energy-saving type uninterrupted power supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201075712Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104022558A (en) * | 2014-06-20 | 2014-09-03 | 青岛风光电子有限公司 | Uninterrupted lead-acid cell charge-discharge system |
| CN107317388A (en) * | 2016-04-27 | 2017-11-03 | 伊顿制造（格拉斯哥）有限合伙莫尔日分支机构 | Method and UPS controller for controlling UPS input currents |
-
2007
- 2007-07-13 CN CNU2007200540700U patent/CN201075712Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104022558A (en) * | 2014-06-20 | 2014-09-03 | 青岛风光电子有限公司 | Uninterrupted lead-acid cell charge-discharge system |
| CN107317388A (en) * | 2016-04-27 | 2017-11-03 | 伊顿制造（格拉斯哥）有限合伙莫尔日分支机构 | Method and UPS controller for controlling UPS input currents |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080618 Termination date: 20130713 |