CN102412732A - Uninterruptible power supply device and control method thereof - Google Patents
Uninterruptible power supply device and control method thereof Download PDFInfo
- Publication number
- CN102412732A CN102412732A CN2010101622598A CN201010162259A CN102412732A CN 102412732 A CN102412732 A CN 102412732A CN 2010101622598 A CN2010101622598 A CN 2010101622598A CN 201010162259 A CN201010162259 A CN 201010162259A CN 102412732 A CN102412732 A CN 102412732A
- Authority
- CN
- China
- Prior art keywords
- rectifier
- current
- signal
- voltage
- controller
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 15
- 238000012937 correction Methods 0.000 claims description 10
- 238000010276 construction Methods 0.000 claims description 7
- 238000000605 extraction Methods 0.000 claims 1
- 230000008859 change Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000007792 addition Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000009414 blockwork Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Landscapes
- Rectifiers (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
An uninterrupted power supply at least comprises a rectifier and a charger, wherein the charger is connected with the rectifier in parallel; a first current sensor for detecting the input current signal of the rectifier, a second current sensor for detecting the input current signal of the charger, and an adder for adding the input current signal of the rectifier and the input current signal of the charger; the rectifier controller is used for controlling the rectifier to adopt a double-ring structure and comprises an external voltage ring and an internal current ring; wherein: the current inner loop feedback signal is the rectifier input current signal plus the charger input current signal.
Description
Technical field
The present invention relates to a kind of uninterrupted power supply(ups) (Uninterruptable Power Supply), the uninterrupted power supply of the harmonic current that the rectifier circuit Active Compensation charger (Charger) of especially a kind of employing band capability correction (Power Factor Correction) function is produced.
Background technology
Uninterrupted power supply(ups) (Uninterruptible Power Supply; UPS) be a kind of power-supply device, this power-supply device is from power storage elements such as charged pools, at electric main just often; By electric main the energy is provided; Electric main is carried out actions such as filtering, rectification, conversion, for power consumption equipment provides clean power supply supply, in case outage appears in civil power, voltage is on the low side, voltage is higher or during power supply quality problem such as frequency fluctuation; Uninterrupted power supply(ups) can detect the generation of mains supply quality problem fast; And switch to powered battery, with energy process conversion stored in the battery, for power consumption equipment provides reliable and stable power supply supply; Solved the civil power that will face when power consumption equipment is directly received the mains-supplied circuit and interrupted, have and disturb or unstable institute causes the power consumption equipment can't operate as normal, even problem such as damage.The modern life is based upon on the electrified basis, and the reliability of power supply is just particularly important, so UPS is widely used.
Typical case's uninterrupted power supply(ups), be connected on exchange input comprise rectifier and charger, the line construction of rectifier and charger and working method have determined the input power and the Harmonics of Input distortion performance of uninterrupted power supply(ups).In recent years; More and more pay attention to the power pollution problem in the world; Various international organizations all propose corresponding laws and regulations requirement to the power factor (PF) and the input current distortion of equipment; In the uninterrupted power supply industry, like IEC61000-3-2, standards such as IEC61000-3-4 are proposing requirement for restriction to the UPS device aspect power factor and the Harmonics of Input.Typical charger construction front end is not for controlling rectified half-waves or full-wave rectifier; Cause the Harmonics of Input distortion bigger; At the bottom of the input power factor, can't satisfy the requirement of power supply quality rules, in order to satisfy the rules demand; Have the UPS manufacturer often to adopt the main power circuit in band power factor school and the charger of band power factor, but the subject matter that this method exists is to be with the charger cost of Active PFC function higher.
Please refer to Fig. 1, Fig. 1 has disclosed a kind of functional block diagram of existing typical uninterrupted power supply (ups) Unity, comprising rectifier (AC/DC) 101, and charger (Charger) 102; Storage battery (Battery) 103, DC booster (DC/DC) 104, dc bus (BUS) 107; Dc-link capacitance (BUS CAP) 105, inverter (DC/AC) 106, AC input terminal 109; Ac output end 110, bypass (Bypass) 108, master controller (Controller) 100.Wherein AC input terminal 109 connects the electric main input; Rectifier 101 is with charger 102 and be connected in ac input end 109; Charger 102 outputs connect battery, and battery 103 connects the charger 102 outer DC boosters 104 that are connected to simultaneously, and the output of rectifier 101 and DC booster 104 connects dc bus 107; Also and be connected to dc-link capacitance 105, inverter 106 is received on the dc bus 107 on the dc bus 107.The input of bypass 108 connects ac input end 109; Its output is connected with the output-parallel of inverter 106; And be connected to ac output end 110, and each the functional block work of master controller 100 control entire machine, promptly controller is from each functional block monitoring running status; And, the monitoring program of central processing unit (CPU) operation whole system is arranged on the controller to each functional block output control command signal.Current sensor 111 detects the rectifier input current signal, and feeds back to master controller 100.Wherein when mains input voltage, frequency; Parameters such as waveform are in normal condition, and rectifier 101 is accepted AC energy from AC input terminal 109, and convert direct current energy into and deliver to dc bus 107; Bus capacitor 105 on the dc bus 107 plays stored energy; Suppress the effect of ripple, inverter 106 is accepted direct current energy from dc bus 107 and is converted interchange output supply load (other power consumption equipments) into, presses because the input of inverter 106 is galvanic currents; And its working method; State receives master controller 100 control fully, so no matter the quality of input civil power how, parameters such as the waveform of its inverter 106 outputs and frequency all can be controlled relatively goodly; When electric main interrupts; Master controller 100 can detect the civil power interrupt event in a short period of time, closes rectifier, and starts DC booster 104 and convert energy stored in the storage battery 103 to more high-tension direct voltage and deliver to dc bus 107; Continuation is transformed into by inverter 106 and exchanges the use of output supply load; From civil power interrupt detecting interrupt starting DC booster 106 during this period of time in because dc-link capacitance 105 has been saved certain quantity of energy, can guarantee that in a period of time DC bus-bar voltage maintains in the scope of permission; So there is not the external energy output inverter can obtain energy during this period of time by dc-link capacitance 105 yet; Guarantee output, realize that thus outside civil power interrupts, and export unbroken basic function.And as at electric main by supply; But on its electric main interference is arranged; Or problem such as mains waveform distortion, after rectifier 101 is transformed into direct current, inversion output is no longer included influence; The former load that is connected on the lead-out terminal 110 can not imported the influence of interference yet, has promptly realized improving the effect of power supply quality.The effect of bypass 108 then is at rectifier 101 or inverter 106, or stepup transformer 104 homenergic converters provide the path that the civil power supply load is directly arranged when chance failure occurring, improves the reliability of whole system as far as possible.
Wherein rectifier 101 is connected on the AC network, in order to reduce input current harmonics, reduces the interference to power supply.Be usually designed to and have power factor correction (Power Factor Correction) function; Concrete implementation please refer to Fig. 1 and Fig. 2, and Fig. 2 is the controller architecture figure of rectifier 101 parts among the uninterrupted power supply(ups) UPS shown in Figure 1, and this structure is outer voltage and current inner loop twin nuclei; Among Fig. 2; Signal V_Bus_Ref is the DC bus-bar voltage desired value, and V_Bus is dc bus 107 virtual voltage values of feedback, and Vac is the ac commercial power voltage signal; Is is a rectifier input current feedback signal; In this control system wherein Vac electric main signal divided by the effective value Vrms of this electric main square obtain mains waveform signal V_ws, DC bus-bar voltage desired value and dc bus virtual voltage relatively, its difference is proofreaied and correct through Voltage loop controller link 202; Voltage loop controller link 202 can be a proportional integral type adjuster, and mains waveform signal V_ws and 202 outputs of Voltage loop controller link are got along through product link 203 and taken advantage of the given signal Imo that obtains electric current loop.The given signal Imo of electric current compares with rectifier input current feedback signal Is, and difference is proofreaied and correct through current loop controller 204, and current loop control link 204 can be a proportional integral type adjuster.The output of current loop controller 204 gets into a pulse-width modulation (PWM Pulse Width Modulation) modulation link; Vs compares with carrier signal, obtains a series of fixed-frequency, the PWM_Signal signal of change in duty cycle through the effective or low effective logic of height; The PWM_Signal signal is delivered to rectifier drive circuit; Through isolating, amplify and just can drive in the rectifier switching tube and open and turn-off, realize that rectifier 101 exports a stable DC busbar voltage; And make the rectifier input current waveform identical with the line voltage shape, promptly realize the purpose that input power factor is proofreaied and correct.Wherein, in the controller of rectifier 101, extract the place of mains waveform V_ws, also can change sinusoidal signal of artificial directly structure into, as shown in Figure 3.Each several part is corresponding among other parts of Fig. 3 and Fig. 2, and its operating state is just no longer repeated here.The controller of rectifier can be to be realized by hardware circuit, also can be realized by the processor on the master controller 100 (CPU) working procedure.
Above-described system realized the Active PFC of rectifier, yet charger also will realize identical Active PFC function, and visible system is a more complicated, therefore raises the cost of charger.
In view of this, it is low to be necessary to provide a kind of better scheme to solve above-mentioned existing apparatus input power factor, and the current distortion degree is high, or expensive problem.
Summary of the invention
The objective of the invention is to propose a kind of UPS, comprising rectifier (AC/DC Converter) in order to solve traditional UPS for satisfying the requirement of power factor harmonic; Charger (Charger), storage battery (Battery), DC booster (DC/DC Converter); Dc bus (BUS), dc-link capacitance (BUS CAP), inverter (DC/AC Converter); AC input terminal, ac output end, bypass; Controller (Controller) has central processing unit (CPU) to move the monitoring program of whole system on the controller, wherein charger and rectifier are connected in parallel.
Comprise that in addition first current sensor is used to detect the rectifier input current signal; Second current sensor is used to detect the charger input current, and output of rectifier input current sensor and the output of charger input current sensor feed back to controller after the addition of adder link.Can make thus just occur on the rectifier input current waveform one just in time with the waveform of charger input current anti-phase; Because total input current of whole uninterrupted power supply UPS equals rectifier input current and the addition of charger input current; The rectifier input current waveform has compensated the electric current of charger non-sine shape; So the complete machine input current then forms sinusoidal, reach the purpose of power factor correction.
The invention has the beneficial effects as follows; Charger need not have the active power factor correction function; Can guarantee that also complete machine has input power factor characteristic preferably; The lower Harmonics of Input distortion factor, thereby charger can adopt better simply line construction, therefore realizes the cost of charger and complete machine and the optimization of performance.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified, in the accompanying drawing:
Fig. 1 is a prior art typical case UPS structured flowchart;
Fig. 2 is a kind of rectifier controller structure chart;
Fig. 3 is another kind of rectifier controller structure chart;
Fig. 4 is a kind of UPS structured flowchart of the present invention;
Fig. 5 is rectifier controller control structure figure of the present invention;
Fig. 6 is a kind of concrete implementation of adder link 413 among Fig. 4;
Fig. 7 is a second embodiment of the invention, and no PFC charger is connected on rectifier input current transducer back;
Fig. 8 is a kind of UPS structure chart of realizing complete machine input power factor calibration function of the present invention;
Fig. 9 is a third embodiment of the invention, adds the rectifier controller structure chart of manual construction charging stream.
Embodiment
Please refer to Fig. 4, Fig. 4 has disclosed a kind of specific embodiment of the present invention, comprising rectifier (AC/DC) 401, and charger (Charger) 402; Storage battery (Battery) 403, DC booster (DC/DC) 404, dc bus (BUS) 407; Dc-link capacitance (BUS CAP) 405, inverter (DC/AC) 406, AC input terminal 409; Ac output end 410, bypass (Bypass) 408, master controller (Controller) 400.Wherein AC input terminal 409 connects the electric main input; Rectifier 401 is with charger 402 and be connected in ac input end 409; Charger 402 outputs connect battery, and battery 403 connects the charger 402 outer DC boosters 404 that are connected to simultaneously, and the output of rectifier 401 and DC booster 404 connects dc bus 407; Also and be connected to dc-link capacitance 405, inverter 106 is received on the dc bus 107 on the dc bus 407.The input of bypass 408 connects ac input end 409; Its output is connected with the output-parallel of inverter 406; And be connected to ac output end 410, and each the functional block work of master controller 400 control entire machine, promptly controller is from each functional block monitoring running status; And, the monitoring program of central processing unit (CPU) operation whole system is arranged on the controller to each functional block output control command signal.Current sensor 411 detects the rectifier input current signal, and feeds back to master controller 400.Wherein when mains input voltage, frequency; Parameters such as waveform are in normal condition, and rectifier 401 is accepted AC energy from AC input terminal 409, and convert direct current energy into and deliver to dc bus 407; Bus capacitor 405 on the dc bus 407 plays stored energy; Suppress the effect of ripple, inverter 406 is accepted direct current energy from dc bus 407 and is converted interchange output supply load (other power consumption equipments) into, presses because the input of inverter 406 is galvanic currents; And its working method; State receives master controller 400 control fully, so no matter the quality of input civil power how, parameters such as the waveform of its inverter 406 outputs and frequency all can be controlled relatively goodly; When electric main interrupts; Master controller 400 can detect the civil power interrupt event in a short period of time, closes rectifier, and starts DC booster 404 and convert energy stored in the storage battery 403 to more high-tension direct voltage and deliver to dc bus 407; Continuation is transformed into by inverter 406 and exchanges the use of output supply load; From civil power interrupt detecting interrupt starting DC booster 406 during this period of time in because dc-link capacitance 405 has been saved certain quantity of energy, can guarantee that in a period of time DC bus-bar voltage maintains in the scope of permission; So there is not the external energy output inverter can obtain energy during this period of time by dc-link capacitance 405 yet; Guarantee output, realize that thus outside civil power interrupts, and export unbroken basic function.And as at electric main by supply; But on its electric main interference is arranged; Or problem such as mains waveform distortion, after rectifier 401 is transformed into direct current, inversion output is no longer included influence; The former load that is connected on the lead-out terminal 410 can not imported the influence of interference yet, has promptly realized improving the effect of power supply quality.The effect of bypass 408 then is at rectifier 401 or inverter 406, or stepup transformer 404 homenergic converters provide the path that the civil power supply load is directly arranged when chance failure occurring, improves the reliability of whole system as far as possible.
Wherein rectifier 401 is connected on the AC network, in order to reduce input current harmonics, reduces the interference to power supply.Be usually designed to and have power factor correction (Power Factor Correction) function, concrete implementation please refer to Fig. 5, and Fig. 5 is the controller architecture figure of rectifier 401 parts among the uninterrupted power supply(ups) UPS shown in Figure 4; This structure is outer voltage and current inner loop twin nuclei; Among Fig. 5, signal V_Bus_Ref is the DC bus-bar voltage desired value, and V_Bus is dc bus 507 virtual voltage values of feedback; Vac is the ac commercial power voltage signal; Is is a rectifier input current feedback signal, in this control system wherein Vac electric main signal divided by the effective value Vrms of this electric main square obtain mains waveform signal V_ws, DC bus-bar voltage desired value and dc bus virtual voltage are relatively; Its difference is proofreaied and correct through Voltage loop controller link 502; Wherein Voltage loop controller link 502 can be a proportional integral type adjuster, and mains waveform signal V_ws and 502 outputs of Voltage loop controller link are got along through product link 503 and taken advantage of the given signal Iac that obtains electric current loop, and the given signal Iac of electric current compares with current feedback signal; Difference is proofreaied and correct through current loop controller 504, and current loop control link 504 can be a proportional integral type adjuster.The output of current loop controller 504 gets into a pulse-width modulation (PWM Pulse Width Modulation) modulation link; Vs compares with carrier signal, obtains a series of fixed-frequency, the PWM_Signal signal of change in duty cycle through the effective or low effective logic determines of height; The PWM_Signal signal is delivered to rectifier drive circuit; Through isolating, amplify and just can drive in the rectifier switching tube and open and turn-off, realize that rectifier 401 exports a stable DC busbar voltage; And make the rectifier input current waveform identical with the line voltage shape, promptly realize the purpose that input power factor is proofreaied and correct.Wherein, in the controller of rectifier 401, extract the place of mains waveform V_ws, also can change sinusoidal signal of artificial directly structure into.The controller of rectifier can be to be realized by hardware circuit, also can be realized by the processor on the master controller 400 (CPU) working procedure.
Difference from prior art is: in the present invention, charger 402 itself need not possess power factor emendation function, so its input current I_chg; By charger line architecture and output voltage; Operational mode confirms that independently do not receive the influence of rectifier 401, waveform is the non-sine shape.
The embodiment of the invention comprises current sensor 411 and current sensor 411; Wherein current sensor 411 detects rectifier input current signal I_rec; Current sensor 412 detects charger input current I_chg; Current sensor 411, current sensor 412 detect the result in 413 additions of adder link, and adder link 413 output current signals feed back to master controller 400.Adder link 413 can be realized that Fig. 6 provides a kind of operational amplifier realization add circuit that has by adder operation circuit or program.The control structure of the power factor correction rectification of rectifier controller of the present invention and aforementioned typical is constant; Like Fig. 5; Because the current signal of charger is added; The given signal of electric current that is equivalent to rectifier has reduced by a big or small composition like the charger input current of shape; Because the function that the rectifier controller current loop controller makes the rectifier input current have follows the trail of the given signal Imo of electric current, therefore, cut charger input current I_chg by the given signal Iac of sine-shaped electric current of the output of Voltage loop controller 502 and the acquisition of mains waveform V_ws product and form the given signal Imo of final rectifier input current; Make just occur on the rectifier input current waveform one just in time with the waveform of charger input current anti-phase; Because total input current of whole uninterrupted power supply UPS equals rectifier input current and the addition of charger input current, so the complete machine input current then forms sinusoidal, reaches the purpose of overall power factor correcting.
A kind of in addition embodiment meaning as shown in Figure 7; Self is not connected on rectifier input current transducer 711 back with the charger 702 of Active PFC function, and transducer 711 detects the electric current that feeds back to controller 700 and equals the rectifier input current and add the charger input current like this.It is equivalent feeding back to master controller 400 with transducer 412 outputs through 413 additions of add operation link with 411 outputs of transducer among Fig. 4 again.So under principle of uniformity, the complete machine input current also can realize following the trail of input voltage, reaches the function of complete machine power factor.
Another specific embodiment structure of the present invention, like Fig. 8, shown in Figure 9, compared to Figure 1, charger 802 itself does not possess the Active PFC function equally.Sensing station does not need change yet; Only need be in the rectifier controller of Digital Realization shown in Figure 9 a charger input current waveform of manual construction I_chg_con;, Voltage loop controller and mains waveform reduce from extracting the identical given signal Imo of electric current with mains waveform of link product gained; Wherein this manual construction charger input current waveform signal I_chg_con can be according to machine actual waveform of testing under typical work condition; Establishment waveform form, during operation according to reading waveform signal time phase.Also can adopt approximately linear formula analog waveform, the mode of employing formula operation in service is constructed the charger waveform.
Above with reference to description of drawings various preferred embodiments of the present invention, but only otherwise deviate from essence of the present invention and scope, those skilled in the art can carry out modification and change on the various forms to it, all belongs to protection scope of the present invention.
Claims (9)
1. uninterrupted power supply comprises:
Rectifier;
Charger, this charger and this rectifier are connected in parallel;
First current sensor is used to detect this rectifier input current signal;
Second current sensor is used to detect this charger input current signal;
The adder link is used to add and this rectifier input current signal and this charger input current signal; And
Rectifier controller, this rectifier are twin nuclei, and comprising the Voltage loop and the internal current ring of outside, it is characterized in that: the current inner loop feedback signal adds the charger input current signal for this rectifier input current signal.
2. uninterrupted power supply comprises:
Rectifier;
Charger, this charger and this rectifier are connected in parallel;
Current sensor is used to detect the parallelly connected summation input current signal with this charger of this rectifier; And
Rectifier controller, this rectifier are twin nuclei, and Voltage loop and internal current ring comprising the outside is characterized in that: the current inner loop feedback signal is the input current signal of this rectifier with the parallelly connected summation of this charger.
3. uninterrupted power supply comprises:
Rectifier;
Charger, this charger and this rectifier are connected in parallel;
Current sensor is used to detect the parallelly connected summation input current signal with this charger of this rectifier;
Rectifier controller, rectifier adopts twin nuclei, comprises outside Voltage loop and internal current ring;
A structure current signal, this structure current signal shape is identical or approaching with this charger input current signal shape;
It is characterized in that: Voltage loop output signal cuts the given signal of this structure current signal as current inner loop.
4. a uninterrupted power supply input rectifier control method, the wherein controller of rectifier
Set:
The voltage control outer shroud;
Ring in the Current Control outer shroud;
Line voltage waveform extracting link;
The given signal of busbar voltage target;
And gather and feed back:
Bus voltage signal;
The line voltage signal;
The input rectifier input current signal;
The charger input current signal;
Wherein the outer voltage controller is input as given signal of busbar voltage target and actual bus voltage value of feedback relative error value; Proofread and correct output through the outer voltage controller, obtain current modulated, the current modulated error amount of comparing with the feedback current signal with line voltage waveform extracting link output multiplication; Proofread and correct through current loop controller; Carry out pulse-width modulation, controlled drive signal
It is characterized by: get rectifier input current and charger input current sum as current feedback signal.
5. a uninterrupted power supply control method, the wherein controller of rectifier
Set:
The voltage control outer shroud;
Ring in the Current Control outer shroud;
Line voltage waveform extracting link;
The given signal of busbar voltage target;
And gather and feed back:
Bus voltage signal;
Rectifier input current and charger input current parallel connection summation input current signal,
Wherein the outer voltage controller is input as given signal of busbar voltage target and actual bus voltage value of feedback relative error value; Proofread and correct output through the outer voltage controller, obtain current modulated, the current modulated error amount of comparing with the feedback current signal with line voltage waveform extracting link output multiplication; Proofread and correct through current loop controller; Carry out pulse-width modulation, controlled drive signal
It is characterized by: adopt rectifier input current and charger input current parallel connection summation input current signal as this rectifier input current feedback signal.
6. a uninterrupted power supply control method, the wherein controller of rectifier
Set:
The voltage control outer shroud;
Ring in the Current Control outer shroud;
Line voltage waveform extracting link;
The given signal of busbar voltage target;
The manual construction current signal, reflection charger input current,
Gather feedback:
Bus voltage signal;
The line voltage signal;
The rectifier input current signal;
Wherein the outer voltage controller is input as given signal of busbar voltage target and actual bus voltage value of feedback relative error value; Proofread and correct output through the outer voltage controller; Obtain current modulated with line voltage waveform extracting link output multiplication, the current modulated error amount of comparing with the feedback current signal is through the current loop controller correction; Carry out pulse-width modulation, controlled drive signal;
It is characterized by: in voltage controller output and mains waveform extraction link output product, reducing the current modulated of this structure current signal as the rectifier controller electric current loop.
7. control method according to claim 4, wherein Voltage loop control and current loop controller are the proportional integral type controller.
8. control method according to claim 5, wherein Voltage loop control and current loop controller are the proportional integral type controller.
9. control method according to claim 6, wherein Voltage loop control and current loop controller are the proportional integral type controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101622598A CN102412732A (en) | 2010-04-03 | 2010-04-03 | Uninterruptible power supply device and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101622598A CN102412732A (en) | 2010-04-03 | 2010-04-03 | Uninterruptible power supply device and control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102412732A true CN102412732A (en) | 2012-04-11 |
Family
ID=45914638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101622598A Pending CN102412732A (en) | 2010-04-03 | 2010-04-03 | Uninterruptible power supply device and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102412732A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102790422A (en) * | 2012-07-30 | 2012-11-21 | 广东易事特电源股份有限公司 | Uninterrupted power supply (UPS) charging module device and control method thereof |
| CN104122503A (en) * | 2014-07-30 | 2014-10-29 | 厦门科华恒盛股份有限公司 | Constant-voltage retrospective online testing device and constant-voltage retrospective online testing method for batteries of uninterrupted power systems |
| WO2014205794A1 (en) * | 2013-06-28 | 2014-12-31 | Schneider Electric It Corporation | Battery charger control |
| CN107276218A (en) * | 2017-06-22 | 2017-10-20 | 中达电通股份有限公司 | DC power system and its control method |
| CN107370358A (en) * | 2016-05-13 | 2017-11-21 | 伊顿制造（格拉斯哥）有限合伙莫尔日分支机构 | The current loop control method and current loop controller of circuit of power factor correction |
| CN108528263A (en) * | 2018-06-08 | 2018-09-14 | 重庆聚陆新能源有限公司 | A kind of efficient electric vehicle direct current charge system |
| CN108808834A (en) * | 2017-11-20 | 2018-11-13 | 伊顿公司 | On-Line UPS and its control method |
| CN108847778A (en) * | 2018-07-23 | 2018-11-20 | 佛山市众盈电子有限公司 | A kind of inversion controlling method of online high frequency UPS |
| CN109347104A (en) * | 2018-08-31 | 2019-02-15 | 华为技术有限公司 | A power grid purification method and UPS power supply and distribution system |
| CN110268621A (en) * | 2016-12-23 | 2019-09-20 | 溯高美公司 | Circuit for regulating DC component of output voltage of uninterruptible power supply |
| CN111181240A (en) * | 2019-09-02 | 2020-05-19 | 宁波中科孚奇能源科技有限公司 | Connection method of energy storage battery and UPS and charge-discharge control method |
| CN111706953A (en) * | 2020-06-03 | 2020-09-25 | 宁波奥克斯电气股份有限公司 | Method and device for controlling bus voltage of inverter air conditioner controller and air conditioner |
| CN112740494A (en) * | 2018-09-20 | 2021-04-30 | Ls电气株式会社 | Power supply device |
| CN110768275B (en) * | 2019-11-28 | 2021-08-06 | 漳州科华技术有限责任公司 | Input oscillation management method and device of switching power supply and related components |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6611442B2 (en) * | 2001-03-30 | 2003-08-26 | Sanyo Denki Co., Ltd. | Controlled rectifier equipment with sinusoidal waveform supply current |
| JP2007151231A (en) * | 2005-11-24 | 2007-06-14 | Toshiba Mitsubishi-Electric Industrial System Corp | Uninterruptible power unit |
| CN101563830A (en) * | 2006-12-19 | 2009-10-21 | 通用电气公司 | Current sensor apparatus and method for uninterruptible power supply |
| CN201805271U (en) * | 2010-04-03 | 2011-04-20 | 联正电子(深圳)有限公司 | UPS (uninterruptible power supply) device |
-
2010
- 2010-04-03 CN CN2010101622598A patent/CN102412732A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6611442B2 (en) * | 2001-03-30 | 2003-08-26 | Sanyo Denki Co., Ltd. | Controlled rectifier equipment with sinusoidal waveform supply current |
| JP2007151231A (en) * | 2005-11-24 | 2007-06-14 | Toshiba Mitsubishi-Electric Industrial System Corp | Uninterruptible power unit |
| CN101563830A (en) * | 2006-12-19 | 2009-10-21 | 通用电气公司 | Current sensor apparatus and method for uninterruptible power supply |
| CN201805271U (en) * | 2010-04-03 | 2011-04-20 | 联正电子(深圳)有限公司 | UPS (uninterruptible power supply) device |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102790422A (en) * | 2012-07-30 | 2012-11-21 | 广东易事特电源股份有限公司 | Uninterrupted power supply (UPS) charging module device and control method thereof |
| CN102790422B (en) * | 2012-07-30 | 2015-07-29 | 广东易事特电源股份有限公司 | A kind of UPS charging module device and control method thereof |
| WO2014205794A1 (en) * | 2013-06-28 | 2014-12-31 | Schneider Electric It Corporation | Battery charger control |
| CN104122503A (en) * | 2014-07-30 | 2014-10-29 | 厦门科华恒盛股份有限公司 | Constant-voltage retrospective online testing device and constant-voltage retrospective online testing method for batteries of uninterrupted power systems |
| CN107370358B (en) * | 2016-05-13 | 2021-03-02 | 伊顿制造（格拉斯哥）有限合伙莫尔日分支机构 | Current loop control method of power factor correction circuit and current loop controller |
| CN107370358A (en) * | 2016-05-13 | 2017-11-21 | 伊顿制造（格拉斯哥）有限合伙莫尔日分支机构 | The current loop control method and current loop controller of circuit of power factor correction |
| CN110268621A (en) * | 2016-12-23 | 2019-09-20 | 溯高美公司 | Circuit for regulating DC component of output voltage of uninterruptible power supply |
| CN107276218B (en) * | 2017-06-22 | 2020-07-31 | 中达电通股份有限公司 | Direct current power supply system and control method thereof |
| CN107276218A (en) * | 2017-06-22 | 2017-10-20 | 中达电通股份有限公司 | DC power system and its control method |
| CN108808834A (en) * | 2017-11-20 | 2018-11-13 | 伊顿公司 | On-Line UPS and its control method |
| CN108808834B (en) * | 2017-11-20 | 2022-02-08 | 伊顿智能动力有限公司 | On-line uninterrupted power supply and control method thereof |
| TWI789459B (en) * | 2017-11-20 | 2023-01-11 | 美商伊登公司 | On-line uninterruptible power supply and its control method |
| CN108528263A (en) * | 2018-06-08 | 2018-09-14 | 重庆聚陆新能源有限公司 | A kind of efficient electric vehicle direct current charge system |
| CN108847778A (en) * | 2018-07-23 | 2018-11-20 | 佛山市众盈电子有限公司 | A kind of inversion controlling method of online high frequency UPS |
| CN109347104A (en) * | 2018-08-31 | 2019-02-15 | 华为技术有限公司 | A power grid purification method and UPS power supply and distribution system |
| CN112740494B (en) * | 2018-09-20 | 2023-06-02 | Ls电气株式会社 | Power supply device |
| CN112740494A (en) * | 2018-09-20 | 2021-04-30 | Ls电气株式会社 | Power supply device |
| CN111181240B (en) * | 2019-09-02 | 2023-05-16 | 宁波中科孚奇能源科技有限公司 | Connection method of energy storage battery and UPS and charge and discharge control method |
| CN111181240A (en) * | 2019-09-02 | 2020-05-19 | 宁波中科孚奇能源科技有限公司 | Connection method of energy storage battery and UPS and charge-discharge control method |
| CN110768275B (en) * | 2019-11-28 | 2021-08-06 | 漳州科华技术有限责任公司 | Input oscillation management method and device of switching power supply and related components |
| CN111706953A (en) * | 2020-06-03 | 2020-09-25 | 宁波奥克斯电气股份有限公司 | Method and device for controlling bus voltage of inverter air conditioner controller and air conditioner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102412732A (en) | Uninterruptible power supply device and control method thereof | |
| CN102005817B (en) | Uninterruptible power supply device based on microgrid and dispatching control method thereof | |
| CN103427430B (en) | A kind of energy management method of mixed energy storage system in microgrid | |
| CN103023128B (en) | A kind of power-supply system for UPS server | |
| CN205248805U (en) | Novel DVR voltage compensation device | |
| CN109950969B (en) | Transformer substation direct current system emergency power supply based on photovoltaic standby | |
| CN102468682A (en) | High voltage direct current power supply system for both alternating current purpose and direct current purpose | |
| CN201805271U (en) | UPS (uninterruptible power supply) device | |
| CN206195602U (en) | UPS power with active power filter function | |
| CN101826821A (en) | Electric energy control method of optical network hybrid power supply uninterruptable inverter | |
| CN110970928A (en) | An energy storage off-grid inverter and control method for simultaneous complementary power supply of photovoltaic and commercial power | |
| CN217739415U (en) | Storage-feed type battery charge-discharge test system based on Internet of things | |
| CN104269900A (en) | Main wiring system of electric automobile charging station system | |
| KR101267803B1 (en) | Commercial grade system interconnected pcs for interface between two grids | |
| CN209626973U (en) | Highly compatible alternating current-direct current mixes distribution system | |
| CN101521393A (en) | On-line uninterrupted power supply device | |
| CN102122833B (en) | Power supply method of non-master/slave self-current-sharing grid-connected parallel uninterrupted power supply system | |
| CN105449830A (en) | DC600V train power supply system | |
| CN201839195U (en) | AC-DC dual-purpose high-voltage DC power supply system | |
| CN102255356B (en) | Efficient uninterruptible power supply | |
| CN105140947A (en) | Intelligent community micro power grid cell energy storage system | |
| CN102223136A (en) | Non-energy-storing motor-driven system for complementary power supply of wind power generation and electrical network | |
| CN100433513C (en) | Method for controlling power-factor correct circuit | |
| CN205583829U (en) | On line type UPS system based on DSP | |
| CN112421659A (en) | Energy storage dilatation power |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| DD01 | Delivery of document by public notice |
Addressee: Xie Shihua Document name: Notification that Application Deemed to be Withdrawn |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120411 |