CN205195551U - Crisscross parallelly connected power factor correction device - Google Patents
Crisscross parallelly connected power factor correction device Download PDFInfo
- Publication number
- CN205195551U CN205195551U CN201520910537.1U CN201520910537U CN205195551U CN 205195551 U CN205195551 U CN 205195551U CN 201520910537 U CN201520910537 U CN 201520910537U CN 205195551 U CN205195551 U CN 205195551U
- Authority
- CN
- China
- Prior art keywords
- power
- current
- diode
- voltage
- signal
- 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
Links
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
- Dc-Dc Converters (AREA)
- Rectifiers (AREA)
Abstract
The utility model relates to a crisscross parallelly connected power factor correction device, the power supply circuit input, connect the rectifier bridge, the rectified output concatenates inductance L1, the rectifier bridge returns behind diode D1 and the electric capacity C, the inductance L2 who establishes ties, diode D2 connects in parallel and is concatenating inductance L1, diode D1 both ends, electric capacity and load are parallelly connected, two power tube one end meet diode D1 respectively, D2's positive pole, two another termination electric capacity of power tube and rectifier bridge tie point, the PWM drive signal looks phasic difference of two power switch pipes is 180 degrees, control circuit gathers input voltage, inductive current and output voltage, two control signal of control circuit output are respectively to two power tube control ends. The device whole digital chip that adopt control, and the control speed is fast and stabilize safe and reliable. The output grade is high, has expanded the range of application of power factor correction in the power electronic product of having chance with greatly. The commonality is strong, can realize the active power factor correction who answers switch, soft switch etc. Different.
Description
Technical field
The utility model relates to a kind of power electronic equipment, particularly a kind of crisscross parallel power factor correcting.
Background technology
The high speed development of power electronic technology makes power electronic equipment be used widely, and the harmonic pollution caused thus is also more and more serious, makes the health of electrical network be subject to serious threat.Power factor correction technology can solve the problem of power electronic equipment harmonic pollution well.
Traditional B oostPFC converter is generally only suitable for for middle low power occasion, and is not suitable for large-power occasions.Interleaving technique is incorporated in Boost, can effectively reduce the current stress of power device, Lifting Transform device power grade, reduce input current ripple and switching loss, be very suitable for large-power occasions.
Summary of the invention
The utility model is for the little problem of present power factor correcting range of application, propose a kind of crisscross parallel power factor correcting, device all adopts digit chip to control, and adopts duty ratio predictive control strategy, and control rate is fast and stability and safety is reliable.
The technical solution of the utility model is: a kind of crisscross parallel power factor correcting, power circuit inputs, connect rectifier bridge, rectification exports tandem electric inductance L1, rectifier bridge is returned after diode D1 and electric capacity C, the inductance L 2 of series connection, diode D2 is connected in parallel on tandem electric inductance L1, diode D1 two ends, electric capacity and load parallel connection, two power tube one end meet diode D1 respectively, the positive pole of D2, two another termination capacitors of power tube and rectifier bridge tie point, the PWM drive singal phase 180 degree of two power switch pipes, control circuit Gather and input voltage, inductive current and output voltage signal, control circuit exports two drive singal and divides and be clipped to two power tube control ends.
Described control circuit comprises outer voltage and current inner loop two parts, the input voltage of rectifier bridge outlet
v in , inductive current on inductance
i l with the output voltage of load entrance
v 0 after signal is sampled circuit sampling, all convert digital signal to by A/D converter, the output voltage sampled digital signal after analog-to-digital conversion and reference voltage
v ref compare and obtain voltage deviation signal, voltage deviation signal is multiplied as current reference value with input voltage sampled digital signal after the digital PID calculate method of Voltage loop regulates, current deviation signal is obtained after current reference value and inductive current sampled digital signal being compared, after electric current loop PI regulates, inductive current follow current reference value, the output signal of electric current loop produces driving signal of power switching tube after PWM comparator.
The control end of described each power tube is independently control end, this control termination No. one drive circuit.
The beneficial effects of the utility model are: the utility model crisscross parallel power factor correcting, and power output grade is high, greatly extend the range of application of power factor correction in power electronic product of having chance with.Highly versatile, can realize the Active Power Factor Correction that inductive switch, Sofe Switch etc. are different.
Accompanying drawing explanation
Fig. 1 is the electrical block diagram of prior art;
Fig. 2 is the utility model crisscross parallel power factor correcting main circuit diagram;
Fig. 3 is the digital control block diagram of average current of the utility model crisscross parallel power factor correcting.
Embodiment
The electrical block diagram of prior art as shown in Figure 1, Active Power Factor Correction for single-ended boost formula circuits improvement be multi-channel parallelly connected step-up type circuit, power circuit inputs, connect rectifier bridge, rectifier bridge returns rectifier bridge after exporting tandem electric inductance, diode and electric capacity, electric capacity and load parallel connection, power tube is connected in parallel on diode and the electric capacity two ends of series connection.
Crisscross parallel power factor correcting main circuit diagram as shown in Figure 2, employing be exactly 2 ends boost circuit export.Power circuit inputs, connect rectifier bridge, rectification returns rectifier bridge after exporting tandem electric inductance L1, diode D1 and electric capacity C, inductance L 2, the diode D2 of series connection are connected in parallel on tandem electric inductance L1, diode D1 two ends, electric capacity and load parallel connection, two power tube one end connect the positive pole of diode D1, D2 respectively, two another termination capacitors of power tube and rectifier bridge tie point.It is formed in parallel by two identical BoostPFC power converter cells of parameter, the PWM drive singal phase 180 degree of two power switch pipes in circuit, two BoostPFC power converter cells (comprise inductance L 1, L2, diode D1, D2, metal-oxide-semiconductor S1, S2), under being operated in interleaved state, input current is the summation that two inductive currents superpose mutually.Under two inductance of converter are in staggered operating state, therefore under the ripple current phase place of two inductance is also in interleaved state, two-way inductive current ripple both when superposition offsets, thus decreases the input current ripple caused by boost inductance and power switch pipe.Therefore, compared with traditional B oostPFC, the dual input electromagnetic interface filter of crisscross parallel BoostPFC converter and the capacity of output filter capacitor can greatly reduce, and the dynamic response characteristic of system is better.
Power circuit is three-phase or single-phase, often also connects the same number of booster circuit mutually.The control end of each power tube is independently control end, this control termination No. one drive circuit.
Adopt Average Current Control strategy herein.In Average Current Control strategy, control loop is made up of outer voltage and current inner loop two parts, current regulator makes input current close to sinusoidal wave, and makes it to follow input voltage, and voltage control loop makes output voltage keep stable by regulating average current input.Figure 3 shows that the digital control frame of the average current of crisscross parallel power factor correcting, as can be seen from the figure, input voltage
v in , inductive current
i l and output voltage
v 0 after signal is sampled circuit sampling, all to convert analog sampling signal to digital signal by A/D converter.By output voltage sampled digital signal and reference voltage after analog-to-digital conversion
v ref compare thus obtain voltage deviation signal, voltage deviation signal is multiplied as current reference value with input voltage sampled digital signal after the digital PID calculate method of Voltage loop regulates, current deviation signal is obtained after current reference value and inductive current sampled digital signal being compared, after electric current loop PI regulates, make inductive current follow current reference value, the output signal of electric current loop produces driving signal of power switching tube after PWM comparator.And the amplitude of digital processing unit output pwm signal is the supply voltage of this chip, cannot Direct driver power switch pipe, need increase drive circuit, just can driving power switching tube.As can be seen here, from the difference of analogue enlargement, average current is digital control is only that handled signal type is different, digital control process be digital signal, and analogue enlargement process is analog signal.In addition, average current is digital control is identical with the control thinking of analogue enlargement.
Claims (3)
1. a crisscross parallel power factor correcting, it is characterized in that, power circuit inputs, connect rectifier bridge, rectification exports tandem electric inductance L1, rectifier bridge is returned after diode D1 and electric capacity C, the inductance L 2 of series connection, diode D2 is connected in parallel on tandem electric inductance L1, diode D1 two ends, electric capacity C and load parallel connection, two power tube one end meet diode D1 respectively, the positive pole of D2, two another termination capacitor C of power tube and rectifier bridge tie point, the PWM drive singal phase 180 degree of two power switch pipes, control circuit Gather and input voltage, inductive current and output voltage signal, control circuit exports two drive singal and divides and be clipped to two power tube control ends.
2. crisscross parallel power factor correcting according to claim 1, it is characterized in that, described control circuit comprises outer voltage and current inner loop two parts, the input voltage of rectifier bridge outlet
v in , inductive current on inductance
i l with the output voltage of load entrance
v 0 after signal is sampled circuit sampling, all convert digital signal to by A/D converter, the output voltage sampled digital signal after analog-to-digital conversion and reference voltage
v ref compare and obtain voltage deviation signal, voltage deviation signal is multiplied as current reference value with input voltage sampled digital signal after the digital PID calculate method of Voltage loop regulates, current deviation signal is obtained after current reference value and inductive current sampled digital signal being compared, after electric current loop PI regulates, inductive current follow current reference value, the output signal of electric current loop produces driving signal of power switching tube after PWM comparator.
3. crisscross parallel power factor correcting according to claim 2, is characterized in that, the control end of described each power tube is independently control end, this control termination No. one drive circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520910537.1U CN205195551U (en) | 2015-11-16 | 2015-11-16 | Crisscross parallelly connected power factor correction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520910537.1U CN205195551U (en) | 2015-11-16 | 2015-11-16 | Crisscross parallelly connected power factor correction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205195551U true CN205195551U (en) | 2016-04-27 |
Family
ID=55788496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520910537.1U Expired - Fee Related CN205195551U (en) | 2015-11-16 | 2015-11-16 | Crisscross parallelly connected power factor correction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205195551U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106301022A (en) * | 2016-08-17 | 2017-01-04 | 深圳市华星光电技术有限公司 | A kind of drive circuit |
| CN106452156A (en) * | 2016-12-16 | 2017-02-22 | 中车青岛四方车辆研究所有限公司 | High-frequency single-phase inverter for motor train unit |
| CN107317475A (en) * | 2017-07-10 | 2017-11-03 | 遵义师范学院 | A kind of crisscross parallel APFC devices based on SOPC |
| CN108306497A (en) * | 2017-01-12 | 2018-07-20 | 沃尔缇夫能源系统公司 | A kind of multiphase interleaving controller and its control method |
| CN108599550A (en) * | 2018-06-22 | 2018-09-28 | 广东志高暖通设备股份有限公司 | A kind of active alternating expression power factor correction circuit |
| CN111262469A (en) * | 2020-03-16 | 2020-06-09 | 中车青岛四方车辆研究所有限公司 | Inverter and control method thereof |
| CN111384841A (en) * | 2018-12-27 | 2020-07-07 | 中兴通讯股份有限公司 | Protection device and method for inductive current |
-
2015
- 2015-11-16 CN CN201520910537.1U patent/CN205195551U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106301022A (en) * | 2016-08-17 | 2017-01-04 | 深圳市华星光电技术有限公司 | A kind of drive circuit |
| CN106452156A (en) * | 2016-12-16 | 2017-02-22 | 中车青岛四方车辆研究所有限公司 | High-frequency single-phase inverter for motor train unit |
| CN108306497A (en) * | 2017-01-12 | 2018-07-20 | 沃尔缇夫能源系统公司 | A kind of multiphase interleaving controller and its control method |
| CN107317475A (en) * | 2017-07-10 | 2017-11-03 | 遵义师范学院 | A kind of crisscross parallel APFC devices based on SOPC |
| CN108599550A (en) * | 2018-06-22 | 2018-09-28 | 广东志高暖通设备股份有限公司 | A kind of active alternating expression power factor correction circuit |
| CN111384841A (en) * | 2018-12-27 | 2020-07-07 | 中兴通讯股份有限公司 | Protection device and method for inductive current |
| CN111262469A (en) * | 2020-03-16 | 2020-06-09 | 中车青岛四方车辆研究所有限公司 | Inverter and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205195551U (en) | Crisscross parallelly connected power factor correction device | |
| CN107017781B (en) | The ISOP full-bridge direct current converter and its control method of asymmetrical PWM control | |
| CN103078530B (en) | A kind of digit power factor converter of fast transient response and control method thereof | |
| CN204886704U (en) | High -power switching power supply circuit and have high -voltage inverter of this circuit | |
| CN105897017B (en) | Three-phase line voltage cascades VIENNA converter | |
| CN113676067A (en) | Multi-phase AC/DC converter | |
| CN105978376A (en) | Grid-connected inverter circuit and control method thereof | |
| CN104638940A (en) | Modular multi-level power electronic transformer based on cascading | |
| CN106981865A (en) | A kind of two-way AC/DC converters control method for parallel connection system of direct-current grid | |
| CN110492769B (en) | Single-stage AC-DC converter circuit with power factor correction function | |
| CN109980968B (en) | Modular multilevel converter, control system and application thereof | |
| CN112271940B (en) | Five-level rectifier with public high-voltage direct-current bus and control strategy | |
| CN111786579B (en) | Cascaded multi-level rectifier with common high-voltage direct-current bus and control strategy | |
| CN207460027U (en) | Isolation type bidirectional DC/AC power supplys | |
| CN107666250B (en) | Single-stage phase and amplitude controllable alternating current converter and working method thereof | |
| CN205864282U (en) | Three-phase line voltage cascade VIENNA changer | |
| CN108683330A (en) | A kind of three switching tube three-phase pfc circuit control methods and serial topological structure | |
| CN101950965A (en) | Single-phase and three-phase dual-buck type half-bridge parallel active power filter | |
| CN103051241A (en) | Self-circulation three-phase dual-voltage-reduction AC/DC (Alternating Current/Direct Current) converter | |
| CN106208761A (en) | Isolated form three-phase AC DC changer | |
| CN212850304U (en) | Cascaded multi-level rectifier with common high-voltage direct-current bus | |
| CN115800744A (en) | Three-phase stacked and staggered direct-current hydrogen production converter | |
| CN104967304A (en) | Bridgeless CUK isolation type three-phase power factor correction converter | |
| CN108306530A (en) | A kind of regulating device and adjusting method for improving output voltage range | |
| CN107370396A (en) | A kind of electric power electric transformer and its voltage-transforming method of tandem mesohigh power network |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160427 Termination date: 20161116 |