CN110112902B - Three-phase boost-buck PFC rectification circuit - Google Patents
Three-phase boost-buck PFC rectification circuit Download PDFInfo
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- CN110112902B CN110112902B CN201910499345.9A CN201910499345A CN110112902B CN 110112902 B CN110112902 B CN 110112902B CN 201910499345 A CN201910499345 A CN 201910499345A CN 110112902 B CN110112902 B CN 110112902B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
- H02M1/4208—Arrangements for improving power factor of AC input
- H02M1/4233—Arrangements for improving power factor of AC input using a bridge converter comprising active switches
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- 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
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Abstract
The invention discloses a buck-boost PFC rectification circuit which comprises a three-phase voltage source circuit (1), a three-phase uncontrolled rectification circuit (2), two symmetrical buck-boost chopper circuits (3) and a shunt circuit (4). The invention has the beneficial effects that: (1) Compared with a three-phase LC filtering passive power factor correction circuit, the power factor can reach 1.0, and the output voltage is controllable; (2) Compared with the traditional boost PFC rectification circuit, the boost PFC rectification circuit can not only reduce voltage output, but also boost voltage output under the condition of no post-stage voltage reduction circuit; (3) Compared with a three-phase single-switch correction circuit, the current control is simple, the inductive current works in a continuous mode, the input/output current ripple is small, only one inductor is needed, three-phase decoupling is not needed, and the control is simple; (4) Compared with a three-phase multi-switch power factor correction circuit, the driving and control strategy is simple, the cost is saved, and the implementation is convenient.
Description
Technical Field
The invention relates to the technical field of power factor correction, in particular to a three-phase boosting PFC rectifying circuit.
Background
The power factor correction technology (Power Factor Correction Technique) is a basic technology in the power electronics community and industry field, and is used for inhibiting harmonic pollution so as to reduce the damage of higher current harmonic waves to the power grid and various electric equipment. With the increase of electric equipment, requirements for high efficiency and high power factor are also put forward on the electric energy converter, so that various novel PFC conversion topologies are generated.
At present, single-phase power factor correction technology is relatively more studied, and is quite mature in terms of circuit topology and control, while three-phase power factor correction is relatively less studied later. In recent years, as the research of PFC technology is continued, three-phase PFC is increasingly attracting attention. The power factor correction technology is divided into two types, passive power factor correction and active power factor correction. Passive power factor correction adopts passive devices, such as LC filtering, and although the circuit structure is simple and the efficiency is high, the power factor is influenced by inductance values, and the maximum power factor can only reach 0.95, and the output voltage is uncontrollable, so that the passive power factor correction is not adopted in most cases. The traditional three-phase active power factor correction circuit generally has the characteristic of a Boost circuit, and can ensure that the power factor correction is realized and meanwhile, the higher direct current bus voltage is output. For the occasion that the rectification output voltage is required to be boosted and reduced, namely the output voltage regulation range is required to be wider, a step-down chopper circuit is required to be connected to the rear stage of the traditional three-phase active power factor correction circuit. From the perspective of the number of active power transistors used, three-phase PFCs can be divided into two categories, one category being single-switch configurations and one category being multi-switch configurations. In order to realize decoupling among three phases, three inductors are arranged in an alternating current test mode and work in a current interruption mode, the three-phase single-switch Boost PFC circuit is characterized in that current control is simple, but input and output current ripples of the circuit are large, requirements on filtering current are high, output voltage is too high, certain difficulty is brought to selection of a power tube, and the circuit is generally applied to occasions with output power smaller than 10kw and non-strict requirements on current THD. Although the three-phase multi-switch can control input current with higher precision to obtain excellent performance, the driving and controlling strategies are complex and the cost is higher.
Disclosure of Invention
The invention aims to provide a three-phase boosting PFC rectification circuit which is simple in structure and realizes three-phase power factor correction in a shunt mode.
The invention provides a three-phase buck-boost PFC rectification circuit, which comprises a three-phase voltage source circuit (1), a three-phase uncontrolled rectification circuit (2), two symmetrical buck-boost chopper circuits (3) and a shunt circuit (4); wherein,
the three-phase voltage source (1) consists of three A, B, C three sinusoidal voltage sources which are 120 degrees apart from each other, one end of each A, B, C three-phase voltage source is connected together, and the other end of each A, B, C three-phase voltage source is respectively connected with the three-phase uncontrolled rectifying circuit (2);
the three-phase uncontrolled rectifying circuit (2) is formed by a diode D 1 ～D 6 Composition, D 1 Anode and D of (2) 2 Is connected with the cathode of the first series circuit, D 3 Anode and D of (2) 4 Is connected with the cathode of the second series circuit, D 5 Anode and D of (2) 6 The cathodes of the three series circuits are connected with the cathodes and the anodes are connected with the anodes,the other end of the A-phase voltage source is connected with the middle point of the first series circuit, the other end of the B-phase voltage source is connected with the middle point of the second series circuit, and the other end of the C-phase voltage source is connected with the middle point of the third series circuit;
two symmetrical buck-boost chopper circuits (3) are formed by a power switch tube Q 1 Power switch tube Q 2 Inductance L 1 Diode D 7 Diode D 8 And capacitor C 1 Composition, Q 1 、D 7 、L 1 、C 1 Forms a first step-up and step-down chopper circuit, Q 2 、D 8 、L 1 、C 1 Forms a second step-up and step-down chopper circuit, Q 1 The collector of (C) is connected with the common cathode of the three-phase uncontrolled rectifying circuit (2), Q 1 Emitter and D of (2) 7 Cathode, C of (2) 1 Is connected to one end of Q 2 The emitter of the (C) is connected with the common anode of the three-phase uncontrolled rectifying circuit (2), Q 2 Collector and D of (2) 8 Anode and C of (C) 1 Is connected to the other end of L 1 One end of (C) is connected with D 7 Is connected with the anode of L 1 And D at the other end of (2) 8 Is connected with the cathode of the battery;
the shunt circuit (4) is formed by a power switch tube Q 3 ～Q 14 Composition, wherein Q 3 The emitter of (1) is connected with the midpoint of the first series circuit, Q 3 Collector and Q of (2) 4 Is connected with the collector of Q 4 Emitter and D of (2) 7 Is connected with anode of Q 5 The emitter of (1) is connected with the middle point of the second series circuit, Q 5 Collector and Q of (2) 6 Is connected with the collector of Q 6 Emitter and D of (2) 7 Is connected with anode of Q 7 The emitter of (1) is connected with the middle point of the third series circuit, Q 7 Collector and Q of (2) 8 Is connected with the collector of Q 8 Emitter and D of (2) 7 Is connected with the anode of the battery; q (Q) 9 The emitter of (1) is connected with the midpoint of the first series circuit, Q 9 Collector and Q of (2) 10 Is connected with the collector of Q 10 Emitter and D of (2) 8 Is connected with the cathode of Q 11 The emitter of (1) is connected with the middle point of the second series circuit, Q 11 Collector and Q of (2) 12 Is connected with the collector of Q 12 Emitter and D of (2) 8 Is connected with the cathode of Q 13 The emitter of (1) is connected with the middle point of the third series circuit, Q 13 Collector and Q of (2) 14 Is connected with the collector of Q 14 Emitter and D of (2) 8 Is connected to the cathode of the battery.
Preferably, the power switch tube Q 1 ～Q 14 May be a MOSFET or an IGBT and each incorporates an anti-parallel diode.
Preferably, the three-phase uncontrolled rectifying circuit further comprises an input filter, wherein the input filter is arranged at the front end of the three-phase uncontrolled rectifying circuit (2). And the power supply of the three-phase voltage source circuit is connected to the three-phase uncontrolled rectifying unit after being filtered by the input filter. Neither filter affects the working principle of the invention.
When the circuit realizes the step-down output function, if a corresponding actual value with the maximum absolute value of the three-phase voltage is positive, controlling Q 1 The low-frequency component of the upper current follows the positive half-cycle envelope of the three-phase input voltage, and the shunt circuit is controlled to enable the corresponding switching tube in the middle of the actual value of the three-phase voltage to selectively keep a normally-on state, and the low-frequency component of the current on the switching tube corresponding to the minimum actual value of the three-phase voltage follows the negative half-cycle envelope of the three-phase input voltage; if the corresponding actual value with the maximum absolute value of the three-phase voltage is negative, controlling Q 2 The low-frequency component of the upper current follows the negative half-cycle envelope of the three-phase input voltage, and the shunt circuit is controlled to enable the corresponding switching tube in the middle of the actual value of the three-phase voltage to selectively keep a normally-on state, and the low-frequency component of the current on the switching tube corresponding to the maximum actual value of the three-phase voltage follows the positive half-cycle envelope of the three-phase input voltage.
When the circuit realizes the boost output function, the switch tube Q is maintained 1 、Q 2 And normally-off, the shunt circuit is controlled, so that reasonable distribution of inductance current in three phases in a steady state is realized, and three-phase power factor correction is realized.
The invention has the beneficial effects that: (1) Compared with a three-phase LC filtering passive power factor correction circuit, the power factor can reach 1.0, and the output voltage is controllable. (2) Compared with the traditional boost PFC rectification circuit, the boost PFC rectification circuit can be used for reducing voltage and outputting without a post-stage voltage reducing circuit, and can be used for boosting voltage and outputting. (3) Compared with a three-phase single-switch correction circuit, the current control is simple, the inductive current works in a continuous mode, the input/output current ripple is small, only one inductor is needed, three-phase decoupling is not needed, and the control is simple. (4) Compared with a three-phase multi-switch power factor correction circuit, the driving and control strategy is simple, the cost is saved, and the implementation is convenient.
Drawings
Fig. 1 is a schematic circuit diagram (with reference numerals) of the present invention.
Fig. 2 (a) is a schematic diagram of a phase a input voltage and current simulation according to the present invention.
Fig. 2 (B) is a schematic diagram of B-phase input voltage and current simulation according to the present invention.
Fig. 2 (C) is a schematic diagram of a C-phase input voltage-current simulation of the present invention.
FIGS. 3 (a) -3 (e) show the grid voltage U a >U b >U c In a typical control mode, the invention realizes a current loop mode of voltage reduction output.
Fig. 3 (f) is a schematic diagram of driving waveforms of each switching tube for realizing a buck output according to an embodiment of the present invention.
FIGS. 4 (a) -4 (d) show the grid voltage U a >U b >U c In a typical control mode, the invention realizes the current loop mode of boost output.
Fig. 4 (e) is a schematic diagram of driving waveforms of each switching transistor of the boost output according to an embodiment of the present invention.
Fig. 5 is a schematic circuit structure of the present invention.
Detailed Description
In order to more particularly describe the present invention, the following detailed description of the technical scheme of the present invention is provided with reference to the accompanying drawings and the specific embodiments. It should be emphasized that the following description is merely exemplary in nature and is in no way intended to limit the scope of the invention or its applications.
Non-limiting and non-exclusive embodiments will be described with reference to the following drawings, in which like reference numerals refer to like elements unless otherwise specified.
As shown in fig. 1, a three-phase buck-boost PFC rectifying circuit includes: the three-phase voltage source circuit (1), the three-phase uncontrolled rectifying circuit (2), two symmetrical buck-boost chopper circuits (3) and a shunt circuit (4); the three-phase voltage source (1) consists of three A, B, C three sinusoidal voltage sources which are 120 degrees apart from each other, one end of each A, B, C three-phase voltage source is connected together, and the other end of each A, B, C three-phase voltage source is respectively connected with the three-phase uncontrolled rectifying circuit (2); the three-phase uncontrolled rectifying circuit (2) is formed by a diode D 1 ～D 6 Composition, D 1 Anode and D of (2) 2 Is connected with the cathode of the first series circuit, D 3 Anode and D of (2) 4 Is connected with the cathode of the second series circuit, D 5 Anode and D of (2) 6 The cathodes of the three series circuits are connected with the cathodes, the anodes of the three series circuits are connected with the anodes to form a three-phase uncontrolled rectifying circuit (2), the other end of the A-phase voltage source is connected with the midpoint of the first series circuit, the other end of the B-phase voltage source is connected with the midpoint of the second series circuit, and the other end of the C-phase voltage source is connected with the midpoint of the third series circuit; two symmetrical buck-boost chopper circuits (3) are formed by a power switch tube Q 1 Power switch tube Q 2 Inductance L 1 Diode D 7 Diode D 8 And capacitor C 1 Composition, power switch tube Q 1 Diode D 7 Inductance L 1 Capacitance C 1 Forms a first step-up and step-down chopper circuit and a power switch tube Q 2 Diode D 8 Inductance L 1 Capacitance C 1 Forms a second step-up and step-down chopper circuit, Q 1 The collector of (C) is connected with the common cathode of the three-phase uncontrolled rectifying circuit (2), Q 1 Emitter and D of (2) 7 Cathode, C of (2) 1 Is connected to one end of Q 2 The emitter of the (C) is connected with the common anode of the three-phase uncontrolled rectifying circuit (2), Q 2 Collector and D of (2) 8 Anode and C of (C) 1 Is connected to the other end of L 1 One end of (C) is connected with D 7 Is connected with the anode of L 1 And D at the other end of (2) 8 Is connected with the cathode of the battery; the shunt circuit (4) is formed by a power switch tube Q 3 ～Q 14 Composition, wherein Q 3 Is of (1)The emitter is connected with the midpoint of the first series circuit, Q 3 Collector and Q of (2) 4 Is connected with the collector of Q 4 Emitter and D of (2) 7 Is connected with anode of Q 5 The emitter of (1) is connected with the middle point of the second series circuit, Q 5 Collector and Q of (2) 6 Is connected with the collector of Q 6 Emitter and D of (2) 7 Is connected with anode of Q 7 The emitter of (1) is connected with the middle point of the third series circuit, Q 7 Collector and Q of (2) 8 Is connected with the collector of Q 8 Emitter and D of (2) 7 Is connected with the anode of the battery; q (Q) 9 The emitter of (1) is connected with the midpoint of the first series circuit, Q 9 Collector and Q of (2) 10 Is connected with the collector of Q 10 Emitter and D of (2) 8 Is connected with the cathode of Q 11 The emitter of (1) is connected with the middle point of the second series circuit, Q 11 Collector and Q of (2) 12 Is connected with the collector of Q 12 Emitter and D of (2) 8 Is connected with the cathode of Q 13 The emitter of (1) is connected with the middle point of the third series circuit, Q 13 Collector and Q of (2) 14 Is connected with the collector of Q 14 Emitter and D of (2) 8 Is connected to the cathode of the battery. Power switch tube Q 1 ～Q 14 May be a MOSFET or an IGBT and each contains an anti-parallel diode.
Fig. 1 shows that the three-phase buck-boost PFC rectifying circuit also includes an input filter, where the input filter is disposed at the front end of the three-phase uncontrolled rectifying circuit, and the output current of the rectifying bridge enters the power grid after being filtered by the filter. In other variations of this embodiment, a filter may be added, consistent with the spirit of the invention.
In the buck mode of operation, the switching tube Q 4 、Q 6 、Q 8 、Q 9 、Q 11 、Q 13 Always in the off state, only the corresponding anti-parallel diode can work in the on-off state.
As shown in fig. 2 (a) to 2 (c), fig. 2 (a) shows a three-phase input a-phase voltage U a And current i a FIG. 2 (B) shows a three-phase input B-phase voltage U b And current i b FIG. 2 (C) shows a three-phase input C-phase voltage U c And a current ic. It can be seen from fig. 2 (a) to 2 (c) that the three-phase current remains in phase with the three-phase voltage, i.e. power factor correction is achieved. FIGS. 3 (a) -3 (e) are exemplary control schemes for step-down output, grid voltage U a >U b >U c And a current loop in which the circuit operates. FIGS. 4 (a) -4 (d) are exemplary control schemes for boost output, grid voltage U a >U b >U c And a current loop in which the circuit operates.
One control mode for realizing buck output of the three-phase buck-boost PFC rectifying circuit in the embodiment is as follows: when the power grid voltage U a >0>U b >U c In the process, the working modes of the system are reasonably distributed in the switching period by the aid of the diagrams (3 a), the diagrams (3 b) and the diagrams (3 e). When the power grid voltage U a >U b >0>U c In the process, the working modes of the system are reasonably distributed in the switching period by the aid of the diagrams (3 (c), the diagrams (3 (d) and the diagrams (e).
For simplicity of analysis, the three-phase grid voltage is considered symmetrical, and for other grid voltage conditions, one skilled in the art will understand one control scheme for implementing the buck output in this embodiment. Firstly, according to sign of product result of three-phase voltage value, judging and selecting Q 1 Or Q 2 High-frequency PWM modulation, Q 1 Q when operating in high frequency PWM modulation state 2 Disconnection, Q 3 、Q 5 、Q 7 The switching tubes corresponding to the middle of the three-phase voltage actual values are in a normally-on state; q (Q) 2 Q when operating in PWM modulation state 1 Disconnection, Q 10 、Q 12 、Q 14 And the switching tubes corresponding to the three-phase voltage actual values among the three switching tubes are in a normally-on state. Due to the three-phase symmetry, i a +i b +i c =0, and the opposite phase current absolute value is equal to the sum of the same-sign phase current absolute values. In U shape a >0>U b >U c For example, the same number phase is B phase and C phase, the different number phase is A phase, and the product of three-phase voltage values is positive, Q is selected 1 High-frequency PWM modulation, Q 2 Breaking, same number phaseThe corresponding switching tube is reasonably modulated at high frequency, and the corresponding switching tube of B is Q 5 ，Q 5 At this time, the switch tube corresponding to C is Q 7 ，Q 7 Is a high frequency modulation. In U shape a >U b >0>U c For example analysis, the same number phase is A phase and B phase, the different number phase is C phase, and the product of three-phase voltage values is negative, Q is selected 2 High-frequency PWM modulation, reasonable high-frequency modulation of the switching tube corresponding to the same number, and Q of the switching tube corresponding to A 10 ，Q 10 For high frequency modulation, the switching tube corresponding to B is Q 12 ，Q 12 This time is normally on. The other cases are analyzed in the same way, and a detailed driving waveform diagram of each switching tube for realizing the function is shown in fig. 3 (f).
Another control manner of the three-phase boost PFC rectifying circuit in this embodiment for implementing boost output is: when the power grid voltage U a >0>U b >U c In the process, the working modes of the system are reasonably distributed in the switching period by the aid of the diagrams (4 a), the diagrams (4 b) and the diagrams (4 d). When the power grid voltage U a >U b >0>U c In the process, the working modes of the system are reasonably distributed in the switching period by the aid of the diagrams (4 (b), the diagrams (c) and the diagrams (d). Q (Q) 1 And Q is equal to 2 Is always broken.
For simplicity of analysis, the three-phase grid voltage is considered symmetrical, and for other grid voltage conditions, one skilled in the art will appreciate one control scheme for implementing boost output in this embodiment. According to the difference of the three-phase input voltage, the working switching tube is reasonably selected, PWM modulation is respectively carried out on the phase with the largest actual value and the phase with the smallest actual value of the three-phase input voltage, and the corresponding switching tube in the middle of the actual value of the input voltage is kept in a normally-on state. In U shape a >0>U b >U c For example, the maximum phase of the three-phase input voltage is phase A, and the corresponding switching tube for high-frequency PWM modulation is phase Q 10 The middle phase of the three-phase input voltage is B phase, the B phase is negative, and the corresponding normally-on switch tube is Q 5 The minimum phase of the three-phase input voltage is C phase, and the switching tube corresponding to high-frequency PWM modulation is Q 7 In this mode of operation, the remaining switching tubes are all in an off state.In U shape a >U b >0>U c For example, the maximum phase of the three-phase input voltage is A phase, and the corresponding switching tube for PWM modulation is Q 10 The middle phase of the three-phase input voltage is B phase, the B phase is positive, and the corresponding normally-on switch tube is Q 12 The minimum phase of the three-phase input voltage is C phase, and the switching tube corresponding to high-frequency PWM modulation is Q 7 In this mode of operation, the remaining switching tubes are all in an off state. In the same way, the detailed driving waveforms of the switching tubes corresponding to the function are shown in fig. 4 (e).
Simulation results show that the PFC circuit can achieve a power factor of 1.0 when realizing buck output or boost output.
Those skilled in the art will recognize. Numerous variations to the above description are possible, so the examples are merely intended to describe one or more specific implementations.
The foregoing description of the preferred embodiments of the present invention is merely for illustration and not for limitation of the scope of the present invention, and various modifications and improvements made by those skilled in the art to which the present invention pertains should fall within the scope of protection defined by the appended claims.
Claims (3)
1. The three-phase buck-boost PFC rectification circuit is characterized by comprising a three-phase voltage source circuit (1), a three-phase uncontrolled rectification circuit (2), two symmetrical buck-boost chopper circuits (3) and a shunt circuit (4); wherein,
the three-phase voltage source (1) consists of three A, B, C three sinusoidal voltage sources which are 120 degrees apart from each other, one end of each A, B, C three-phase voltage source is connected together, and the other end of each A, B, C three-phase voltage source is respectively connected with the three-phase uncontrolled rectifying circuit (2);
the three-phase uncontrolled rectifying circuit (2) is formed by a diode D 1 ~D 6 Composition, D 1 Anode and D of (2) 2 Is connected with the cathode of the first series circuit, D 3 Anode and D of (2) 4 Is connected with the cathode of the second series circuit, D 5 Anode and D of (2) 6 Cathode of (2)Connected to form a third series circuit, diode D 1 ，D 3 ，D 5 Cathode of the diode D 2 ，D 4 ，D 6 The other end of the phase A voltage source is connected with the middle point of the first series circuit, the other end of the phase B voltage source is connected with the middle point of the second series circuit, and the other end of the phase C voltage source is connected with the middle point of the third series circuit;
two symmetrical buck-boost chopper circuits (3) are formed by a power switch tube Q 1 Power switch tube Q 2 Inductance L 1 Diode D 7 Diode D 8 And capacitor C 1 Composition, Q 1 、D 7 、L 1 、C 1 Forms a first step-up and step-down chopper circuit, Q 2 、D 8 、L 1 、C 1 Forms a second step-up and step-down chopper circuit, Q 1 The collector of (C) is connected with the common cathode of the three-phase uncontrolled rectifying circuit (2), Q 1 Emitter and D of (2) 7 Cathode, C of (2) 1 Is connected to one end of Q 2 The emitter of the (C) is connected with the common anode of the three-phase uncontrolled rectifying circuit (2), Q 2 Collector and D of (2) 8 Anode and C of (C) 1 Is connected to the other end of L 1 One end of (C) is connected with D 7 Is connected with the anode of L 1 And D at the other end of (2) 8 Is connected with the cathode of the battery;
the shunt circuit (4) is formed by a power switch tube Q 3 ~Q 14 Composition, wherein Q 3 The emitter of (1) is connected with the midpoint of the first series circuit, Q 3 Collector and Q of (2) 4 Is connected with the collector of Q 4 Emitter and D of (2) 7 Is connected with anode of Q 5 The emitter of (1) is connected with the middle point of the second series circuit, Q 5 Collector and Q of (2) 6 Is connected with the collector of Q 6 Emitter and D of (2) 7 Is connected with anode of Q 7 The emitter of (1) is connected with the middle point of the third series circuit, Q 7 Collector and Q of (2) 8 Is connected with the collector of Q 8 Emitter and D of (2) 7 Is connected with the anode of the battery; q (Q) 9 The emitter of (1) is connected with the midpoint of the first series circuit, Q 9 Collector and Q of (2) 10 Is connected with the collector of Q 10 Emitter and D of (2) 8 Is connected with the cathode of Q 11 The emitter of (1) is connected with the middle point of the second series circuit, Q 11 Collector and Q of (2) 12 Is connected with the collector of Q 12 Emitter and D of (2) 8 Is connected with the cathode of Q 13 The emitter of (1) is connected with the middle point of the third series circuit, Q 13 Collector and Q of (2) 14 Is connected with the collector of Q 14 Emitter and D of (2) 8 Is connected to the cathode of the battery.
2. The three-phase buck-boost PFC rectifier circuit of claim 1, wherein: power switch tube Q 1 ~Q 14 Are MOSFETs or IGBTs and each contain an anti-parallel diode.
3. The three-phase buck-boost PFC rectifying circuit according to claim 1 or 2, wherein: the three-phase uncontrolled rectifying circuit also comprises an input filter, wherein the input filter is arranged at the front end of the three-phase uncontrolled rectifying circuit (2).
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101582633A (en) * | 2008-05-14 | 2009-11-18 | 台达电子工业股份有限公司 | Three-phase boosting and deboosting power factor correction circuit and control method thereof |
| CN102694460A (en) * | 2011-03-24 | 2012-09-26 | 南京博兰得电子科技有限公司 | Three-phase boost-buck PFC converter |
| CN109167514A (en) * | 2018-10-08 | 2019-01-08 | 南昌航空大学 | A kind of three-phase step-down type PFC rectification circuit |
| CN109167524A (en) * | 2018-11-06 | 2019-01-08 | 深圳市高益智能电气有限公司 | A kind of three-phase alternating current-direct current buck translation circuit and its control method |
| CN209787041U (en) * | 2019-06-11 | 2019-12-13 | 南昌航空大学 | Three-phase boost-buck PFC (power factor correction) rectification circuit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI364155B (en) * | 2008-04-25 | 2012-05-11 | Delta Electronics Inc | Three-phase buck-boost power factor correction circuit and controlling method thereof |
-
2019
- 2019-06-11 CN CN201910499345.9A patent/CN110112902B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101582633A (en) * | 2008-05-14 | 2009-11-18 | 台达电子工业股份有限公司 | Three-phase boosting and deboosting power factor correction circuit and control method thereof |
| CN102694460A (en) * | 2011-03-24 | 2012-09-26 | 南京博兰得电子科技有限公司 | Three-phase boost-buck PFC converter |
| CN109167514A (en) * | 2018-10-08 | 2019-01-08 | 南昌航空大学 | A kind of three-phase step-down type PFC rectification circuit |
| CN109167524A (en) * | 2018-11-06 | 2019-01-08 | 深圳市高益智能电气有限公司 | A kind of three-phase alternating current-direct current buck translation circuit and its control method |
| CN209787041U (en) * | 2019-06-11 | 2019-12-13 | 南昌航空大学 | Three-phase boost-buck PFC (power factor correction) rectification circuit |
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