CN103701335A - High-voltage inverter power unit system - Google Patents
High-voltage inverter power unit system Download PDFInfo
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- CN103701335A CN103701335A CN201310755484.6A CN201310755484A CN103701335A CN 103701335 A CN103701335 A CN 103701335A CN 201310755484 A CN201310755484 A CN 201310755484A CN 103701335 A CN103701335 A CN 103701335A
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Abstract
The invention discloses a high-voltage inverter power unit system, comprising a power source input unit, a rectification unit, a filter circuit, an inverter unit, a transformer and a power control unit, wherein the power source input unit, the rectification unit, the filter circuit and the inverter unit are electrically connected in sequence; the transformer is connected between the power source input unit and the power control unit; the power control unit is further electrically connected with the inverter unit; the inverter unit comprises an IGBT (insulated gate bipolar transistor) module, wherein the IGBT module comprises a first IGBT, a second IGBT, a third IGBT and a fourth IGBT; a gate pole, a collector and an emitter of each IGBT are respectively and electrically connected with the power control unit. Through the above mode, the filter performance of the high-voltage inverter power unit system is better, the common mode voltage and the voltage clutter in the power control unit are eliminated, a short-time spike pulse is absorbed, the whole circuit system is effectively protected, and the service life of the circuit system is prolonged.
Description
Technical field
The present invention relates to a kind of high voltage transducer power unit system.
Background technology
Frequency converter is a kind of conventional electric control appliance, and it can change the frequency of working power, thereby controls alternating current motor work.General frequency converter is mainly comprised of rectification circuit, filter circuit, inverter circuit and power control circuit, the most filter effect of existing frequency converter is bad, very unstable, during energising, rectification circuit easily punctures, and greatly reduces serviceability and the useful life of whole frequency converter.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of high voltage transducer power unit system; filtering performance is better; can eliminate common-mode voltage and voltage clutter in described power control unit; absorb spike in short-term; effectively protect whole Circuits System, extended the useful life of Circuits System.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of high voltage transducer power unit system is provided, comprise power input unit, rectification unit, filter circuit, inversion unit, transformer and power control unit, described power input unit, rectification unit, filter circuit and inversion unit are electrically connected successively, described transformer is connected between described power input unit and described power control unit, and described power control unit is further electrically connected with described inversion unit; Described inversion unit comprises insulated gate gate pole transistor (IGBT, Insulated Gate Bipolar Translator) module, described IGBT module comprises first to fourth IGBT, and described in each, the gate pole of IGBT, collector and emitter are electrically connected with described power control unit respectively.
In a preferred embodiment of the present invention, described power input unit is connected with three-phase alternating-current supply, described power input unit comprises the first fuse, the second fuse, the first electric capacity, the second electric capacity and the 3rd electric capacity, the second end of described the first electric capacity, the second electric capacity and the 3rd electric capacity is electrically connected, the first end of described the first fuse forms the first power input, and the second end of described the first fuse and the first end of described the first electric capacity are electrically connected; The first end of described the second electric capacity forms second source input, and the first end of described the second fuse forms the 3rd power input, and the first end of the second end of the second fuse and the 3rd electric capacity is electrically connected.
In a preferred embodiment of the present invention, described rectification unit comprises the first to the 6th rectifier diode, described first forms the first output of described rectification unit to electric connection and junction between the negative electrode of the 3rd rectifier diode, the described the 4th forms the second output of described rectification unit to electric connection and junction between the anode of the 6th rectifier diode, the second end of the negative electrode of the anode of described the first rectifier diode, the 4th rectifier diode and the first fuse is electrically connected; The first end of the negative electrode of the anode of described the second rectifier diode, the 5th rectifier diode and the second electric capacity is electrically connected; The second end of the negative electrode of the anode of described the 3rd rectifier diode, the 6th rectifier diode and the second fuse is electrically connected.
In a preferred embodiment of the present invention, between the first output of described rectification unit and the second output, be further connected with the 4th electric capacity.
In a preferred embodiment of the present invention, described filter circuit comprises the 5th electric capacity and two filter units that are connected in parallel, described the 5th electric capacity and described filter unit are connected in parallel, each filter unit comprises three alminium electrolytic condensers and three resistance, described in each, alminium electrolytic condenser and a described resistance are connected in parallel, wherein the first output of the positive pole of first alminium electrolytic condenser and described rectification unit is electrically connected, the positive pole of negative pole and second alminium electrolytic condenser is electrically connected, the positive pole of the negative pole of second alminium electrolytic condenser and the 3rd alminium electrolytic condenser is electrically connected, the second output of the negative pole of the 3rd alminium electrolytic condenser and described rectification unit is electrically connected.
In a preferred embodiment of the present invention, in inversion unit, the collector electrode of the emitter of an IGBT and described the 2nd IGBT is electrically connected, and the collector electrode of the emitter of described the 3rd IGBT and described the 4th IGBT is electrically connected; The emitter of a described IGBT forms the first voltage output end of described inversion unit, and the emitter of described the 3rd IGBT forms the second voltage output of described inversion unit.
In a preferred embodiment of the present invention, described inversion unit further comprises the 6th electric capacity, the 7th electric capacity and four Transient Suppression Diodes, described the 6th electric capacity is connected between the collector electrode of a described IGBT and the emitter of described the 2nd IGBT, described the 7th electric capacity is connected between the collector electrode of described the 3rd IGBT and the emitter of described the 4th IGBT, described in each, Transient Suppression Diode is connected between the collector and emitter of an IGBT, wherein, the anode of described Transient Suppression Diode and the emitter of described IGBT are electrically connected, the collector electrode of negative electrode and described IGBT is electrically connected.
In a preferred embodiment of the present invention, described transformer comprises primary coil and secondary coil, the primary coil of described transformer and described power input unit are electrically connected, and the secondary coil of described transformer and the input of described power control unit are electrically connected.
In a preferred embodiment of the present invention, described power control unit comprises power control board, drive plate and IGBT module board, and described drive plate is connected between described power control board and IGBT module board.
In a preferred embodiment of the present invention, described power control unit further comprises fiber-optic signal output and fiber-optic signal input.
The invention has the beneficial effects as follows: filtering performance of the present invention is better, can eliminate common-mode voltage and voltage clutter in described power control unit, absorb spike in short-term, effectively protected whole Circuits System, extend the useful life of Circuits System.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also according to these accompanying drawings, obtain other accompanying drawing, wherein:
Fig. 1 is the electrical block diagram of a preferred embodiment of the present invention.
In accompanying drawing, the mark of each parts is as follows: 1, power input unit; 2, rectification unit; 3, filter circuit; 4, inversion unit; 5, power control unit; 501, power control board; 502, drive plate; 503, IGBT module board; D1, the first rectifier diode; D2, the second rectifier diode; D3, the 3rd rectifier diode; D4, the 4th rectifier diode; D5, the 5th rectifier diode; D6, the 6th rectifier diode; T1, an IGBT; T2, the 2nd IGBT; T3, the 3rd IGBT; T4, the 4th IGBT; C1, the first electric capacity; C2, the second electric capacity; C3, the 3rd electric capacity; C4, the 4th electric capacity; C5, the 5th electric capacity; C6, the 6th electric capacity; C7, the 7th electric capacity; FU1, the first fuse; FU2, the second fuse; P1, fiber-optic signal output; P2, fiber-optic signal input; TC, transformer.
Embodiment
Below the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making all other embodiment that obtain under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, the embodiment of the present invention comprises:
A kind of high voltage transducer power unit system, comprise power input unit 1, rectification unit 2, filter circuit 3, inversion unit 4, transformer TC and power control unit 5, described power input unit 1, rectification unit 2, filter circuit 3 and inversion unit 4 are electrically connected successively, described transformer TC is connected between described power input unit 1 and described power control unit 5, and described power control unit 5 is further electrically connected with described inversion unit 4.
Described power input unit 1 is connected with three phase mains, described power input unit 1 comprises the first fuse FU1, the second fuse FU2, the first capacitor C 1, the second capacitor C 2 and the 3rd capacitor C 3, the second end of described the first capacitor C 1, the second capacitor C 2 and the 3rd capacitor C 3 is electrically connected, the first end of described the first fuse FU1 forms the first power input, and the first end of the second end of described the first fuse FU1 and described the first capacitor C 1 is electrically connected; The first end of described the second capacitor C 2 forms second source input, and the first end of described the second fuse FU2 forms the 3rd power input, and the first end of the second end of the second fuse FU2 and the 3rd capacitor C 3 is electrically connected.Described the first capacitor C 1, the second capacitor C 2 and the 3rd capacitor C 3 can filtering clutters.
In the present invention, described rectification unit 2 comprises the first to the 6th rectifier diode D6, described first forms the first output of described rectification unit 2 to electric connection and junction between the negative electrode of the 3rd rectifier diode, the described the 4th forms the second output of described rectification unit 2 to electric connection and junction between the anode of the 6th rectifier diode, the second end of the negative electrode of the anode of described the first rectifier diode D1, the 4th rectifier diode D4 and the first fuse FU1 is electrically connected; The first end of the negative electrode of the anode of described the second rectifier diode D2, the 5th rectifier diode D5 and the second capacitor C 2 is electrically connected; The second end of the negative electrode of the anode of described the 3rd rectifier diode D3, the 6th rectifier diode D6 and the second fuse FU2 is electrically connected.Described rectification circuit can convert three-phase alternating current to direct current.
In addition, be further connected with the 4th capacitor C 4 between the first output of described rectification unit 2 and the second output, described the 4th capacitor C 4 can further absorb clutter.
Described filter circuit 3 comprises the 5th capacitor C 5 and two filter units that are connected in parallel, described the 5th capacitor C 5 is connected in parallel with described filter unit, each filter unit comprises three alminium electrolytic condensers (figure is mark not) and three resistance (figure is mark not), described in each, alminium electrolytic condenser and a described resistance are connected in parallel, wherein the first output of the positive pole of first alminium electrolytic condenser and described rectification unit 2 is electrically connected, the positive pole of negative pole and second alminium electrolytic condenser is electrically connected, the positive pole of the negative pole of second alminium electrolytic condenser and the 3rd alminium electrolytic condenser is electrically connected, the second output of the negative pole of the 3rd alminium electrolytic condenser and described rectification unit 2 is electrically connected.
Through the filtered direct current input of described filter circuit 3 inversion unit 4.Described inversion unit 4 comprises IGBT module, and described IGBT module comprises first to fourth IGBTT1～T4.Wherein, the collector electrode of the emitter of an IGBT T1 and described the 2nd IGBT T2 is electrically connected, and the collector electrode of the emitter of described the 3rd IGBT T3 and described the 4th IGBT T4 is electrically connected; The emitter of a described IGBT T1 forms the first voltage output end of described inversion unit 4, and the emitter of described the 3rd IGBT T3 forms the second voltage output of described inversion unit 4.
Inversion unit 4 of the present invention further comprises the 6th capacitor C 6, the 7th capacitor C 7 and four Transient Suppression Diodes (figure is mark not), described the 6th capacitor C 6 is connected between the collector electrode of a described IGBT T1 and the emitter of described the 2nd IGBT T2, described the 7th capacitor C 7 is connected between the collector electrode of described the 3rd IGBT T3 and the emitter of described the 4th IGBT T4, described in each, Transient Suppression Diode is connected between the collector and emitter of an IGBT, wherein, the anode of described Transient Suppression Diode and the emitter of described IGBT are electrically connected, the collector electrode of negative electrode and described IGBT is electrically connected.
When concrete application, described filter circuit 3 and described inversion unit 4 adopt respectively folded row's design, and the folded row on electric capacity and in IGBT module, divides and is arranged, the fully folded row's of maximum using effect, make the positive and negative busbar in whole Circuits System as far as possible close, and enough large over against area, reduce the bare area of single copper bar, thereby reduced leakage inductance and stray inductance, strengthen the absorption of high order ripple, greatly promoted the electric property of whole Circuits System.
Described transformer TC comprises primary coil and secondary coil, the primary coil of described transformer TC and described power input unit 1 are electrically connected, and the input of the secondary coil of described transformer TC and described power control unit 5 is electrically connected to provide electric energy to described power control unit 5.
In the present embodiment, described power control unit 5 comprises power control board 501, drive plate 502 and IGBT module board 503, and described drive plate 502 is connected between described power control board 501 and IGBT module board 503.Described IGBT module board 503 comprises a plurality of control output ends, and described in each, the gate pole of IGBT, collector and emitter are electrically connected with a described control output end respectively.The control signal that described power control board 501 sends is sent to described inversion unit 4 through described drive plate 502 and IGBT module board 503 successively, controls the electric voltage frequency of described inversion unit 4 outputs.
Described power control unit 5 further comprises that fiber-optic signal output P1 and fiber-optic signal input P2 are to realize optical fiber communication.
In sum, the present invention has adopted the first to the 5th electric capacity, and filtering performance is better, can eliminate common-mode voltage and voltage clutter in described power control unit 5, absorb spike in short-term, effectively protected whole Circuits System, extend the useful life of Circuits System; The gate pole that described IGBT module board 503 is realized described IGBT is nearby connected with the resistance between emitter, prevents that IGBT gate pole is because vacant state is by electrostatic damage; Realize Transient Suppression Diode welding nearby, realize overvoltage protection nearby, realize the convenient of holding wire simultaneously and connect.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention to do; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. a high voltage transducer power unit system, it is characterized in that, comprise power input unit (1), rectification unit (2), filter circuit (3), inversion unit (4), transformer (TC) and power control unit (5), described power input unit, rectification unit, filter circuit and inversion unit are electrically connected successively, described transformer is connected between described power input unit and described power control unit, and described power control unit is further electrically connected with described inversion unit; Described inversion unit comprises IGBT module, and described IGBT module comprises first to fourth IGBT, and described in each, the gate pole of IGBT, collector and emitter are electrically connected with described power control unit respectively.
2. high voltage transducer power unit system according to claim 1, it is characterized in that, described power input unit is connected with three-phase alternating-current supply, described power input unit comprises the first fuse (FU1), the second fuse (FU2), the first electric capacity (C1), the second electric capacity (C2) and the 3rd electric capacity (C3), the second end of described the first electric capacity, the second electric capacity and the 3rd electric capacity is electrically connected, the first end of described the first fuse forms the first power input, and the second end of described the first fuse and the first end of described the first electric capacity are electrically connected; The first end of described the second electric capacity forms second source input, and the first end of described the second fuse forms the 3rd power input, and the first end of the second end of the second fuse and the 3rd electric capacity is electrically connected.
3. high voltage transducer power unit system according to claim 2, it is characterized in that, described rectification unit comprises the first to the 6th rectifier diode, described first forms the first output of described rectification unit to electric connection and junction between the negative electrode of the 3rd rectifier diode, the described the 4th forms the second output of described rectification unit to electric connection and junction between the anode of the 6th rectifier diode, the second end of the negative electrode of the anode of described the first rectifier diode (D1), the 4th rectifier diode (D4) and the first fuse is electrically connected; The anode of described the second rectifier diode (D2), the 5th negative electrode of rectifier diode (D5) and the first end of the second electric capacity are electrically connected; The second end of the negative electrode of the anode of described the 3rd rectifier diode (D3), the 6th rectifier diode (D6) and the second fuse is electrically connected.
4. high voltage transducer power unit system according to claim 3, is characterized in that, is further connected with the 4th electric capacity (C4) between the first output of described rectification unit and the second output.
5. high voltage transducer power unit system according to claim 3, it is characterized in that, described filter circuit comprises the 5th electric capacity (C5) and two filter units that are connected in parallel, described the 5th electric capacity and described filter unit are connected in parallel, each filter unit comprises three alminium electrolytic condensers and three resistance, described in each, alminium electrolytic condenser and a described resistance are connected in parallel, wherein the first output of the positive pole of first alminium electrolytic condenser and described rectification unit is electrically connected, the positive pole of negative pole and second alminium electrolytic condenser is electrically connected, the positive pole of the negative pole of second alminium electrolytic condenser and the 3rd alminium electrolytic condenser is electrically connected, the second output of the negative pole of the 3rd alminium electrolytic condenser and described rectification unit is electrically connected.
6. high voltage transducer power unit system according to claim 5, it is characterized in that, in inversion unit, the collector electrode of the emitter of an IGBT and described the 2nd IGBT is electrically connected, and the collector electrode of the emitter of described the 3rd IGBT and described the 4th IGBT is electrically connected; The emitter of a described IGBT forms the first voltage output end of described inversion unit, and the emitter of described the 3rd IGBT forms the second voltage output of described inversion unit.
7. high voltage transducer power unit system according to claim 5, it is characterized in that, described inversion unit further comprises the 6th electric capacity (C6), the 7th electric capacity (C7) and four Transient Suppression Diodes, described the 6th electric capacity is connected to a described IGBT(T1) collector electrode and described the 2nd IGBT(T2) emitter between, described the 7th electric capacity is connected to described the 3rd IGBT(T3) collector electrode and described the 4th IGBT(T4) emitter between, described in each, Transient Suppression Diode is connected between the collector and emitter of an IGBT, wherein, the anode of described Transient Suppression Diode and the emitter of described IGBT are electrically connected, the collector electrode of negative electrode and described IGBT is electrically connected.
8. high voltage transducer power unit system according to claim 1, it is characterized in that, described transformer comprises primary coil and secondary coil, the primary coil of described transformer and described power input unit are electrically connected, and the secondary coil of described transformer and the input of described power control unit are electrically connected.
9. high voltage transducer power unit system according to claim 1, it is characterized in that, described power control unit comprises power control board (501), drive plate (502) and IGBT module board (503), and described drive plate is connected between described power control board and IGBT module board.
10. high voltage transducer power unit system according to claim 1, is characterized in that, described power control unit further comprises fiber-optic signal output (P1) and fiber-optic signal input (P2).
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| CN201310755484.6A CN103701335A (en) | 2013-12-31 | 2013-12-31 | High-voltage inverter power unit system |
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| CN201310755484.6A CN103701335A (en) | 2013-12-31 | 2013-12-31 | High-voltage inverter power unit system |
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