CN2614396Y - Three-phase UPS made up of frequency-converter and accumulator - Google Patents
Three-phase UPS made up of frequency-converter and accumulator Download PDFInfo
- Publication number
- CN2614396Y CN2614396Y CN 03254005 CN03254005U CN2614396Y CN 2614396 Y CN2614396 Y CN 2614396Y CN 03254005 CN03254005 CN 03254005 CN 03254005 U CN03254005 U CN 03254005U CN 2614396 Y CN2614396 Y CN 2614396Y
- Authority
- CN
- China
- Prior art keywords
- power supply
- positive
- uninterrupted
- negative
- 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 - Fee Related
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
A triphase uninterrupted power device constituted of a converter and an accumulator is provided with a large capacity battery storage 3 connected in parallel on the positive-and-negative voltage output ends of triphase-bridge type rectifier circuit of common voltage type converter and on the two positive and negative ends C, D of a large capacitor C<1>, with the large capacity battery storage 3 connecting in series with a charging and discharging return circuit to constitute an interrupted power device. A detection signal input end of a control board 5 controlling operation of the interrupted power device connects respectively with the two positive and negative ends C, D of a large capacitor C<1> and detection points B<1>, B<2> ,B<3>,...B<N> of each single accumulator in the battery storage 3. The control board 5 takes sample voltage value of the above points to control the realization of uninterrupted power supply. The utility model not only can realize the uninterrupted power supply for power source of elevators in skyscraper, but also can be applied to the back-up power in factories, triphase power source and a variety of back-up powers using converters to realize the function of uninterrupted power supply.
Description
Technical field
The utility model relates to the uninterrupted power supply technical field, particularly a kind of three-phase uninterrupted supply unit that adopts frequency converter and storage battery to form.
Background technology
China's skyscraper elevator adopts voltage frequency converter to make power supply more, but when mains supply interrupts, no power supply capacity; The uninterrupted power supply problem of the normal operation of skyscraper elevator is very outstanding, in the prior art, adopts double circuit power supply to make stand-by power supply more, but its cost height, as the generating of use fuel oil, then noise is big, and pollution is big, maintenance cost height, difficult startup in winter.
Summary of the invention
The purpose of this utility model provides a kind of simple in structure, and is easy to maintenance, the three-phase uninterrupted supply unit that noiselessness, the common frequency converter of free of contamination employing and storage battery are formed.
Described frequency converter and batteries constitute three-phase uninterrupted supply unit and are made of frequency converter, batteries and control board system.Its technical scheme is achieved in that in the generating positive and negative voltage output of common electrical die mould frequency converter three-phase bridge rectifier circuit, big capacitor C
1Being parallel with one on positive and negative two-end-point C, the D is in series and the uninterrupted power supply device formed by large-capacity battery group 3 and charge and discharge loop; Wherein, resistance R and contactor JM
2Contact JM
2-1Batteries is constituted charge circuit, diode D and contactor JM
1Contact JM
1-1Batteries is constituted discharge loop, and one terminated on the large-capacity battery group 3 after the charge and discharge loop was in parallel, and the other end is connected on the three-phase bridge rectifier circuit 1 voltage output end point.Control this uninterrupted power supply device work control board 5 the detection signal input respectively with big capacitor C
1Positive and negative two-end-point C, D, and the test point B of each the single storage battery in the batteries 3
1, B
2, B
3B
NLink to each other, 5 pairs of premises magnitudes of voltage of control board are sampled, and control it and realize the uninterrupted power supply task.
V
EFBe the voltage detecting value of batteries, JM
1, JM
2Be the 220V A.C. contactor, its control end links to each other with the control signal output ends of control board 5, and control board compares back its switching of control to sample voltage value and setting controlling value.V
CDBe big capacitor C
1Detection voltage.
The utility model project organization is ingenious, rationally, not only to the practicable uninterrupted power supply of the power supply of skyscraper elevator, is applicable to that also the stand-by power supply of factory's back-up source, three-phase electrical source of power and various use frequency converters is finished the uninterrupted power supply function.
Description of drawings
Accompanying drawing 1 is the utility model circuit theory diagrams;
Accompanying drawing 2 is batteries charging and discharging circuit and control board control principle figure.
Among the figure: 1-frequency converter, 2-three phase electric machine, 3-batteries, 4-three-phase bridge rectifier circuit, 5-control board.
Embodiment
Below in conjunction with accompanying drawing the course of work of the present utility model is explained in detail, its course of work is such: as shown in Figure 1, and L
1, L
2, L
3Be the input of three-phase 380V alternating current,, give big capacitor C through the three-phase bridge rectification of power rectifier diode
1Charging is again through power supply that the voltage frequency conversion is adjustable of inverter circuit output, for motor provides stand-by power supply.KP
1Be controllable silicon, beginning to connect three-phase electricity moment, KP
1The angle of flow very little, to capacitor C
1C is treated in charging
1Voltage when reaching 500V, KP
1The effect of diode is played in full conducting.
Among Fig. 2, KM closes a switch
1, then batteries charging and discharging circuit and control loop are started working, and work as V
CDGreater than set point V
4The time, JM
2Work, its contact JM
2-1Closure, electrical network charges a battery through resistance R, as charging voltage V
EFReach set point V
5The time, JM
1Work, its contact JM
1-1Closed storage battery is in stand-by state; Work as V
EFReach set point V
6The time, JM
2Do not work its contact JM
2-1Disconnect, battery charging process is finished.
When mains supply interrupts suddenly, and if this moment is V
CDLess than setting operating voltage V
1, contactor JM then
2Work, its contact JM
2-1Closure is given capacitor C by resistance R
1V is worked as in charging
CDReach set point V
2After, contact JM
1Work, its contact JM
1-1Closure, storage battery battery discharge makes the frequency converter operate as normal, finishes the uninterrupted power supply task.
Work as V
EFLess than set point V
3The time accumulator electric-quantity exhaust, this moment, control system was cut off JM
1, JM
2, after line voltage recovery normally, V
CDDetected value restarts and V
4Compare, pass through JM
1, JM
2, resistance R discharges and recharges storage battery, reaches the balance of voltage, reduce electrical network or frequency converter capacitor C
1Impact, prevent damage simultaneously to storage battery, prolong its useful life.
Claims (2)
1, a kind of three-phase uninterrupted supply unit that adopts frequency converter and storage battery to form is characterized in that: at the generating positive and negative voltage output of common electrical die mould frequency converter three-phase bridge rectifier circuit, big electric capacity (C
1) be parallel with one on the positive and negative two-end-point (C, D) and be in series and the uninterrupted power supply device formed by large-capacity battery group (3) and charge and discharge loop; Wherein, resistance (R) and contactor (JM
2) contact (JM
2-1) batteries is constituted charge circuit, diode (D) and contactor JM
1Contact (JM
1-1) batteries is constituted discharge loop, one terminated on the large-capacity battery group (3) after the charge and discharge loop was in parallel, and the other end is connected on the three-phase bridge rectifier circuit 1 voltage output end point.
2, the three-phase uninterrupted supply unit formed of employing frequency converter as claimed in claim 1 and storage battery is characterized in that: control this uninterrupted power supply device work control board (5) the detection signal input respectively with big electric capacity (C
1) positive and negative two-end-point (C, D), and the test point (B of each the single storage battery in the batteries (3)
1, B
2, B
3B
N) link to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03254005 CN2614396Y (en) | 2003-05-13 | 2003-05-13 | Three-phase UPS made up of frequency-converter and accumulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03254005 CN2614396Y (en) | 2003-05-13 | 2003-05-13 | Three-phase UPS made up of frequency-converter and accumulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2614396Y true CN2614396Y (en) | 2004-05-05 |
Family
ID=34253375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03254005 Expired - Fee Related CN2614396Y (en) | 2003-05-13 | 2003-05-13 | Three-phase UPS made up of frequency-converter and accumulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2614396Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101944761A (en) * | 2010-06-28 | 2011-01-12 | 长城汽车股份有限公司 | Integrated-type charging and motor control system |
| CN102624046A (en) * | 2012-02-23 | 2012-08-01 | 国彪电源集团有限公司 | Medium-voltage emergency power supply for guaranteeing charge by aid of boosting pulse |
| CN102624045A (en) * | 2012-02-23 | 2012-08-01 | 国彪电源集团有限公司 | Medium-voltage emergency power supply for guaranteeing charge by means of boosting and rectifying |
-
2003
- 2003-05-13 CN CN 03254005 patent/CN2614396Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101944761A (en) * | 2010-06-28 | 2011-01-12 | 长城汽车股份有限公司 | Integrated-type charging and motor control system |
| CN101944761B (en) * | 2010-06-28 | 2013-07-31 | 长城汽车股份有限公司 | Integrated-type charging and motor control system |
| CN102624046A (en) * | 2012-02-23 | 2012-08-01 | 国彪电源集团有限公司 | Medium-voltage emergency power supply for guaranteeing charge by aid of boosting pulse |
| CN102624045A (en) * | 2012-02-23 | 2012-08-01 | 国彪电源集团有限公司 | Medium-voltage emergency power supply for guaranteeing charge by means of boosting and rectifying |
| CN102624045B (en) * | 2012-02-23 | 2014-12-17 | 国彪电源集团有限公司 | Medium-voltage emergency power supply for guaranteeing charge by means of boosting and rectifying |
| CN102624046B (en) * | 2012-02-23 | 2015-03-04 | 国彪电源集团有限公司 | Medium-voltage emergency power supply for guaranteeing charge by aid of boosting pulse |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |