CN107624217A - Power inverter - Google Patents
Power inverter Download PDFInfo
- Publication number
- CN107624217A CN107624217A CN201680019941.7A CN201680019941A CN107624217A CN 107624217 A CN107624217 A CN 107624217A CN 201680019941 A CN201680019941 A CN 201680019941A CN 107624217 A CN107624217 A CN 107624217A
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- Prior art keywords
- conductor
- circuit
- surge
- busbar
- capacity device
- Prior art date
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Classifications
-
- 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
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
- H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
- H02M5/44—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
- H02M5/443—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a thyratron or thyristor type requiring extinguishing means
- H02M5/45—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
-
- 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
-
- 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
-
- 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
Abstract
Busbar (12) and busbar (14) are arranged as opposed to, and the sense of current for flowing through busbar (12) is set to opposite with flowing through the sense of current of busbar (14), and, busbar (13) and busbar (14) are arranged as opposed to, and the sense of current for flowing through busbar (13) is set to opposite with flowing through the sense of current of busbar (14), thus the inductance between the plus end and negative terminal of power model (8) is diminished, wherein, the plus end of busbar (12) from the power model (8), which is connected to surge, prevents circuit (3), the busbar (14) is connected to the negative terminal of power model (8) from the minus side terminal of smoothing capacity device (6), the busbar (13) prevents circuit (3) to be connected to the positive side terminal of smoothing capacity device (6) from surge.
Description
Technical field
The present invention relates to power inverter, more particularly to flowing to smoothing capacity device caused by switch on power
The circuit structure that surge current is suppressed.
Background technology
For the electric power converters such as inverter, in order that the DC voltage stability after rectification, is provided with great Rong mostly
The capacitor of amount.In the case where being provided with the capacitor of these Large Copacities, the short circuit of capacitor, stream are produced when switching on power
Super-high-current, cause the breakage of equipment.In order to prevent the above situation, it is known to make use of surge prevents circuit.Generally, surge is prevented
Only circuit is inserted in the DC line after firm rectification.In this case, surge can be prevented to circuit and smoothing capacity device string
Connection configuration.In patent document 1, the example that surge is prevented to circuit and smoothing capacity device arranged in series is disclosed.
As described above, by the way that surge is prevented into circuit and smoothing capacity device arranged in series, had the advantage that so as to have, i.e.
Even if mistakenly connecting the lead-out terminal of power supply and inverter side, it can also prevent from flowing through surge current, inverter will not be made
Electronic unit is damaged.Also, the size for preventing electric current that the switch of circuit flows through from surge, because the electric current turns into shunting
Electric current after to inverter, so compared with following Fig. 1 structure, surge is being prevented into circuit and smooth electricity as shown in Figure 2
In the case that container is connected in series, the size of electric current diminishes.Accordingly, there exist following advantages, i.e. can reduce and be used as switch
Relay, the rated capacity of IGCT or transistor, realize low cost, miniaturization (with reference to patent document 1).
Patent document 1：Japanese Unexamined Patent Publication 1-214270 publications
As shown in above-mentioned patent document 1, in the case that surge is prevented into circuit and smoothing capacity device arranged in series, due to
Surge is inserted between inverter and smoothing capacity device prevents circuit, thus from the plus end of inverter untill negative terminal away from
It is big from becoming.Therefore, impedance becomes the increase of surge voltage when greatly, causing inverter break-make.Therefore, it is necessary to which inverter will be configured at
The capacity of neighbouring buffer condenser becomes big, causes the cost of electric power converter to increase.
The content of the invention
The present invention proposes that its object is to the impedance that suppression circuit is overall in order to solve the problems, such as described above
Increase, preventing the cost of power inverter increases.
Power inverter of the present invention has：Converter, it is converted to the exchange exported from AC power directly
Stream；Smoothing capacity device, it is charged by direct current；And inverter, direct current is converted to exchange by it,
Circuit connected in series is prevented to be connected with surge smoothing capacity device between following lines, these lines are：By inverter
The line that the plus end of plus end and converter links；And the line for linking the negative terminal of the negative terminal of inverter and converter,
1st conductor is arranged as opposed to the 3rd conductor, and by the sense of current for flowing through the 1st conductor and flows through the 3rd conductor
Sense of current be set on the contrary, wherein, the 1st conductor is connected to surge from the plus end of inverter prevents circuit, the 3rd conductor from
The minus side terminal of smoothing capacity device is connected to the negative terminal of inverter,
Also, the 2nd conductor is arranged as opposed to the 3rd conductor, and by the sense of current for flowing through the 2nd conductor and flows through the
The sense of current of 3 conductors is set on the contrary, wherein, the 2nd conductor prevents circuit to be connected to the positive side of smoothing capacity device from surge
Son.
The effect of invention
By being formed as described above, so as to the increase of the overall impedance of suppression circuit, surge voltage is constant big,
Therefore the increase of the cost of power inverter can be prevented.
Brief description of the drawings
Fig. 1 is the circuit diagram for representing common power inverter.
Fig. 2 is the circuit diagram for representing the power inverter involved by embodiment 1.
Fig. 3 is the oblique view for representing the circuit arrangement involved by embodiment 1.
Fig. 4 is the main circuit diagram for representing the power inverter involved by embodiment 1.
Fig. 5 is the oblique view for representing the circuit arrangement involved by embodiment 2.
Fig. 6 is the circuit diagram for representing the power inverter involved by embodiment 3.
Fig. 7 is the circuit diagram for representing the power inverter involved by embodiment 4.
Fig. 8 is the circuit diagram for representing the power inverter involved by embodiment 5.
Fig. 9 is the circuit diagram for representing the power inverter involved by embodiment 6.
Figure 10 is the circuit diagram for representing the power inverter involved by embodiment 6.
Figure 11 is the schematic diagram illustrated for the action to power relay.
Figure 12 is the oblique view for representing the power relay involved by embodiment 7.
Figure 13 is the oblique view for the relation for representing power relay and busbar involved by embodiment 7.
Figure 14 is the schematic diagram for representing switch-side Y.
Figure 15 is the oblique view for representing the circuit arrangement involved by embodiment 8.
Figure 16 is the circuit diagram for the structure that the surge for representing involved by embodiment 9 prevents circuit.
Embodiment
Embodiment 1.
Fig. 1 is the circuit diagram for representing common power inverter, be surge prevent circuit not with smoothing capacity device string
Join the circuit diagram of connection.Fig. 2 is the figure for representing to prevent surge circuit and the example of smoothing capacity device arranged in series, is to represent this
The figure of the basic circuit structure of embodiment.In fig. 2, by making three phase mains 1 be inputted to rectifier 2 (converter), so as to
Exchange is converted into direct current, charged to smoothing capacity device 6.In fig. 2, diode is used as rectifier 2, by by two poles
Pipe is set to the rectifier 2 of bridge structure and carries out full-wave rectification.The surge of smoothing capacity device 6 prevents circuit 3 and smoothing capacity device 6
It is connected in series, resistance 4 is connected in parallel with switch 5.To using the situation of power relay as switch 5 in the present embodiment
Illustrate.In addition, in addition to power relay, IGCT, transistor can also be used.Power model 8 forms inverter
Circuit.Buffer condenser 7 is configured near power model 8, surge voltage when having the function that to suppress break-make.In power model
8 output sets motor 9.In the present embodiment, smoothing capacity device 6 and surge are prevented into circuit 3 between following lines
It is connected in series, these lines are：The line that the plus end of the plus end (P terminals) 10 of power model 8 and rectifier 2 is linked；And
The line that the negative terminal of the negative terminal (N-terminal) 11 of power model 8 and rectifier 2 is linked.
Next, prevent the action of circuit 3 from illustrating to surge.When switching on power, by disconnecting switch 5, via
Resistance 4 makes smoothing capacity device 6 charge, so as to suppress surge current.After the charging of smoothing capacity device 6, ON switch 5 so that electricity
Stream is without flow through resistance 4.Thereby, it is possible to suppress surge current.By the way that surge is prevented into circuit 3 and the arranged in series of smoothing capacity device 6,
So as to cause the plus end (P terminals) 10 from power model 8 to prevent circuit 3 and smoothing capacity device 6 to power model 8 via surge
Negative terminal (N-terminal) 11 untill distance it is elongated, impedance increase.
Particularly inductance composition turns into problem, the surge voltage between P terminals and N-terminal during the break-make of power model 8
Become big, it is possible to pressure-resistant more than power model 8.Therefore, it is necessary to increase the capacity of buffer condenser 7, surge voltage is suppressed, because
This causes the cost of power inverter to increase.In the past, even if preventing circuit from being inserted in series with smoothing capacity device surge,
The rising of suppression inductance is not considered, does not avoid the increase of cost.
Therefore, in the present embodiment, it is configured to the part for the power inverter that the increase to inductance is suppressed
Configuration and distribution.That is, by the way that the switch element of power model 8 is become into dissengaged positions from connection status, so as to bent in voltage
The part of overshoot is produced in line, voltage now turns into surge voltage.As described above, switch element work, electric circuit from
Connection status changes the voltage increase Δ V relative to steady state voltage into surge voltage caused by dissengaged positions, is inciting somebody to action
When the inductance of distribution is set to L, electric current is set to i and the time is set to t, represented by Δ V=L (di/dt).Therefore, in order to by surge
Voltage diminishes, and preferably the inductance L formed by distribution inductance diminishes, therefore tries to diminish the distribution inductance in the present invention.
Fig. 3 is the oblique view for representing the circuit arrangement involved by embodiment 1, shows the P terminals of power model 8
With the construction between N-terminal.In addition, Fig. 4 is main circuit diagram.Extract in the present embodiment as important structural element
Switch 5, smoothing capacity device 6, power model 8 and the busbar for they to be carried out with wiring, figure 3 illustrates.In the presence of 3 use
In carry out wiring distribution, it is necessary to busbar 12 (the 1st conductor), busbar 13 (the 2nd conductor), busbar 14 (the 3rd conductor).Converge
Stream bar 12 is wired to surge from the P terminals 10 of power model 8 prevents circuit 3.It is flat that busbar 13 from surge prevents that circuit 3 is connected to
The positive side terminal of sliding capacitor 6.Also, busbar 14 is connected to the N-terminal of power model 8 from the minus side terminal of smoothing capacity device 6
Son 11.In the present embodiment, as the 1st conductor, the 2nd conductor, the 3rd conductor and use with D structure busbar 12,
13、14。
Also, busbar 12 and busbar 13 turn into positive side current potential, busbar 14 turns into minus side current potential.As shown in figure 3, will
Busbar 12 is arranged as opposed to busbar 14, and makes busbar 12 prevent circuit 3 to be connected with surge.Also, by busbar 13
It is arranged as opposed to busbar 14, and them is connected with the terminal of smoothing capacity device 6 respectively.Thus, the P ends of power model 8
Inductance between son and N-terminal diminishes.That is, in the part relative with busbar 14 of busbar 12, flow through the electric current of busbar 12 with
The sense of current of busbar 14 is flowed through on the contrary, therefore mutual inductance is negative, in addition, in the portion relative with busbar 14 of busbar 13
Point, the electric current that flows through busbar 13 and the sense of current that flows through busbar 14 on the contrary, therefore mutual inductance be it is negative, so mutual inductance and oneself
Sense sum is that the overall value of inductance diminishes.By being formed as described above, so as to suppress the P terminals of power model 8 and N
The increase of impedance between end, the high capacity of buffer condenser 7 can be prevented.Therefore, it is possible to suppress power inverter into
This rising.
Embodiment 2.
Fig. 5 is the oblique view for representing the circuit arrangement involved by embodiment 2, shows the P terminals of power model 8
With the construction between N-terminal.Extract in the present embodiment as the switch 5 of important structural element, smoothing capacity device 6, work(
Rate module 8 and the busbar for they to be carried out with wiring, figure 5 illustrates.Following structure is set in Figure 5, i.e. by power
Module 8, surge prevent circuit 3 to be configured at smoothing capacity device 6 on straight line, and wiring is carried out to them.That is, in this embodiment party
In formula, it is same flat that power model 8, surge are prevented that the upper surface part for being provided with terminal of circuit 3 and smoothing capacity device 6 is configured at
On face, and prevent the terminal arrangement of circuit 3 and smoothing capacity device 6 on straight line power model 8, surge.Also, converging
In the structure for flowing bar 12, busbar 13, busbar 14, busbar 12 and busbar 14 are arranged as opposed to, and make busbar 12
Circuit 3 is prevented to be connected with surge.Also, busbar 13 and busbar 14 are arranged as opposed to, and make they and smooth electricity respectively
The terminal connection of container 6.
As described above, by preventing circuit 3 to be configured at smoothing capacity device 6 on straight line power model 8, surge,
So as to which the length of the distribution between input and output further shortens, compared with embodiment 1, P terminals and N-terminal can be further reduced
Impedance between son.In addition, in the same manner as embodiment 1, by making P terminals relative with the busbar between N-terminal, so as to also can
The inductance between the P terminals of power model 8 and N-terminal is set to diminish.As described above, according to present embodiment, power mould can be suppressed
The increase of impedance between the P terminals and N-terminal of block 8, the surge voltage switched when switching can be diminished, prevent buffer condenser 7
High capacity.Thereby, it is possible to the rising for the cost for suppressing power inverter.
Embodiment 3.
Fig. 6 is the circuit diagram for representing the power inverter involved by embodiment 3.In figure 6, make from three phase mains 1
Direct current is converted to rectifier 2, direct current reactor 15 is configured with the direct current portion to suppress the harmonic wave of source current.Wave
Gushing prevents circuit 3 is connected in parallel by resistance 4 with switch 5 to form, and the surge prevents circuit 3 and the company of series connection of smoothing capacity device 6
Connect.Power model 8 forms inverter circuit.
Buffer condenser 7 is configured near power model 8, surge voltage when having the function that to suppress break-make.In power
The output end of module 8 sets motor 9.In the present embodiment, in the case of newly direct current reactor 15 has been added,
Employ the distribution construction identical construction with illustrating in above-mentioned embodiment 1,2.Thereby, it is possible to reduce P terminals and N-terminal
Between impedance, surge voltage will not become capacity that is big, therefore can suppressing buffer condenser 7.Electric power can further be suppressed to turn
The rising of the cost of changing device.
Embodiment 4.
Fig. 7 is the circuit diagram for representing the power inverter involved by embodiment 4.In the figure 7, three phase mains 1 with
Between rectifier 2, AC reactor 16 is configured with order to suppress the harmonic wave of source current.Rectifier 2 is used from three phase mains 1
And be converted to direct current.Surge prevents circuit 3 to be connected in series with smoothing capacity device 6, the surge prevent circuit 3 be by resistance 4 with
Switch 5 is connected in parallel and formed.Power model 8 forms inverter circuit.
Buffer condenser 7 is configured near power model 8, surge voltage when having the function that to suppress break-make.In power
The output end of module 8 sets motor 9.In the present embodiment, in the case of newly AC reactor 16 has been added,
Employ the distribution construction identical construction with illustrating in above-mentioned embodiment 1,2.Thereby, it is possible to reduce P terminals and N-terminal
Between impedance, surge voltage will not become capacity that is big, therefore can suppressing buffer condenser 7.Electric power can further be suppressed to turn
The rising of the cost of changing device.
Embodiment 5.
Fig. 8 is the circuit diagram for representing the power inverter involved by embodiment 5.List is applied in the present embodiment
Phase power supply 17.Direct current is converted to from single phase poaer supply 17 using rectifier 18, is charged to smoothing capacity device 6.Surge prevents circuit 3
It is connected in series with smoothing capacity device 6, the surge prevents circuit 3 to be connected in parallel by resistance 4 and switch 5 to form.Power
Module 8 forms inverter circuit.Buffer condenser 7 is configured near power model 8, has surge voltage when suppressing break-make
Effect.In the output end of power model 8, motor 9 is set.
In the present embodiment, it can also insert direct current reactor as above-mentioned embodiment 3, embodiment 4, hand over
Flow reactor.In the present embodiment, in the case of single-phase rectifier has been used, also use and in above-mentioned embodiment party
The distribution construction identical construction illustrated in formula 1,2.Thereby, it is possible to reduce the impedance between P terminals and N-terminal, surge voltage is not
Capacity big, therefore that buffer condenser 7 can be suppressed can be become.The rising of the cost of power inverter can further be suppressed.
Embodiment 6.
Fig. 9 is the circuit diagram for representing the power inverter involved by embodiment 6.In the present embodiment, as defeated
Enter the converter of side and employ the rectification circuit that switch element is set to bridge structure.I.e., in fig.9, using power crystal
Pipe etc. forms converter, can carry out triggering control.Direct current is converted to from three phase mains 1 using converter 19, to smooth electricity
Container 6 charges.Surge prevents circuit 3 to be connected in series with smoothing capacity device 6, and the surge prevents that circuit 3 from being by resistance 4 and switch
5 are connected in parallel and form.In addition, though do not illustrated in fig.9, but circuit 3 and smoothing capacity device 6 are prevented in surge
Laterally right side is provided with the power model and motor for forming inverter circuit.Buffer condenser 7 is configured near power model,
Surge voltage when having the function that to suppress break-make.In the output end of power model, motor is set.
Difference with above-mentioned embodiment 1 to 5 is that the electric power converter of the side of three phase mains 1 carries out break-make.Figure 10 is table
Show the circuit diagram of the power inverter involved by other embodiment.As shown in Figure 10, the electric power of input side can also be turned
Parallel operation is set to single-phase circuit.In the present embodiment, also use and constructed with the distribution illustrated in above-mentioned embodiment 1,2
Identical constructs.Thereby, it is possible to reduce the impedance between P terminals and N-terminal, surge voltage will not become big, therefore can suppress slow
Rush the capacity of capacitor 7.The rising of the cost of power inverter can further be suppressed.
Embodiment 7.
It is referred in above as switch 5 and uses power relay, but in the present embodiment, illustrates to be used to make this
The construction that inductance inside power relay also reduces.Figure 11 is the signal illustrated for the action to power relay
Figure, Figure 12 is the oblique view for representing power relay.In fig. 11, power relay opens the electricity being controlled by docking on/off
Magnetic side X and the switch-side Y compositions as switch.That flow through electric current in surge prevents circuit 3 is switch-side Y.In electromagnetism
Side X, electric current flow through operation coil 30, and iron core 100 is magnetized, and thus iron plate 101 moves, by being transmitted (arrow to the action
Head Z), so as to be contacted in switch-side Y, movable contact 31 with fixed contact therefor 32, thus flow through electric current.
In fig. 12, equivalent to 2 taper end of electromagnetism side X input and output terminal 21, switch-side Y input and output terminal
22 equivalent to 2 butt end, the inside distribution 23 of switch are formed in a manner of connecting 2 input and output terminals 22.Figure 13 is table
Show the oblique view of the relation of power relay and busbar.Busbar 14 is arranged as opposed to busbar 12, and make busbar
13 are arranged as opposed to busbar 14.In the present embodiment, in order to further reduce the inductance inside power relay, with
The mode that the inside distribution 23 of relay is parallel is that busbar 14 carries out distribution to the busbar of minus side.Thus, internally distribution
23 electric currents flowed through and the sense of current that is flowed through in busbar 14 are on the contrary, mutual inductance is negative, therefore is inductor with self-induction sum
The value of body diminishes.Figure 14 is the schematic diagram for representing switch-side Y, and Figure 14 (A) shows off-state, and Figure 14 (B) shows connection
State.As shown in Figure 14 (B), in on-state, internal distribution 23 is parallel with busbar 14.Thereby, it is possible to reduce power after
The internal driving of electrical equipment, the reduction of the capacity of buffer condenser 7 can be realized.Can further suppress power inverter into
This rising.
Embodiment 8.
In above-mentioned embodiment 1 into embodiment 7, to as respectively by power model 8, switch 5, smoothing capacity
Device 6 connect distribution and be illustrated using the situation of busbar.On the other hand, it can also install and match somebody with somebody on printed base plate
Line and form.
Figure 15 is the oblique view for representing present embodiment, and rectifier 2 (converter), power mould are connected with to printed base plate 24
Block 8, switch 5 and smoothing capacity device 6.Next, the installation method of printed base plate 24 is illustrated.For example, by 2 layers of base
The upper surface configuration of plate equivalent to busbar 12 the 1st pattern (the 1st conductor), in the of lower surface configuration equivalent to busbar 14
3 patterns (the 3rd conductor), so as to make both relative, thus, it is possible to reduce inductance.Similarly, the upper table in 2 laminar substrates is passed through
Face configures the 2nd pattern (the 2nd conductor) equivalent to busbar 13, and the 3rd pattern equivalent to busbar 14 is configured in lower surface, from
And both can be made relative, thus, it is possible to reduce inductance.That is, as the 1st conductor, the 2nd conductor, the 3rd conductor and employ installation
In the pattern of printed base plate 24.In addition, in fig. 15 it is shown that power model 8, switch 5 are configured at print with smoothing capacity device 6
The situation of the whole upper surface of brush substrate 24, but for all parts, be installed on any of upper surface, lower surface and all may be used
With.By using present embodiment, so as to reduce inductance.
In addition, for circuit diagram and operating principle, it is identical with situation about illustrating in above-mentioned embodiment 1.In addition, at this
In embodiment, the structure of above-mentioned embodiment 2 to 7 can be also used.For example, power model 8, surge can be prevented circuit
3 and the face for being provided with terminal of smoothing capacity device 6 be configured on same plane, and power model 8, surge are prevented into the and of circuit 3
The terminal arrangement of smoothing capacity device 6 is on straight line.Diode is set to bridge structure in addition, can be used as converter
Rectification circuit.In addition, the rectification circuit that switch element is set to bridge structure can be used as converter.Also, surge
Prevent circuit 3 to be connected in parallel by resistance 4 and switch 5 to form, the inside distribution and the 3rd pattern phase of switch 5 will be formed
Configure over the ground, and the sense of current for flowing through internal distribution is set to opposite with flowing through the sense of current of the 3rd pattern.
Embodiment 9.
Illustrate that surge prevents that the construction of circuit 3 from being the relay that resistance 4 is connected in parallel with switch 5 in embodiment 1 to 8
Device.In the present embodiment, the structure for preventing circuit to surge unlike this illustrates., can be with crystal as switch
The semiconductor elements such as pipe replace.Figure 16 is to be denoted as switching and use the circuit diagram of semiconductor element, and Figure 16 (A) shows work
The situation of IGCT 25 is used for switch, switch is formed by the anti-parallel connection of IGCT 25 and diode 26.For simple
Action example, in the case where being disconnected IGCT 25, smoothing capacity device 6 is charged via resistance 4.In charging complete
Afterwards, connecting IGCT 25 makes surge prevent the short circuit of circuit 3.The reason for being provided with diode 26 is smoothing capacity device 6 anti-parallel connection
Need to be discharged, if without diode 26, smoothing capacity device 6 can not discharge.
Figure 16 (B) is the circuit diagram for representing the situation using MOSFET 27.In this case, also can by with it is above-mentioned
Same method is operated.Using in the case of MOSFET 27, MOSFET can reverse circulated, therefore two can be omitted
Pole pipe 26.Figure 16 (C) is the oblique view for representing the situation using IGBT 28.In this case, also can be by with using brilliant lock
The method that the situation of pipe is same is operated.Circuit is prevented by using the surge of present embodiment, so as to same with embodiment 1
Sample, the inductance of circuit can be reduced.
In addition, each embodiment can be freely combined by the present invention in the range of its invention, or to each implementation
Mode suitably deform, omitted.
Claims (9)
1. a kind of power inverter, it has：
Converter, the exchange exported from AC power is converted to direct current by it；Smoothing capacity device, it is filled by the direct current
Electricity；And inverter, the direct current is converted to exchange by it,
Circuit connected in series is prevented to be connected with surge the smoothing capacity device between following lines, these lines are：By the inversion
The line that the plus end of the plus end of device and the converter links；And by the negative terminal of the inverter and the converter
The line that negative terminal links,
In the power inverter,
1st conductor is arranged as opposed to the 3rd conductor, and by the sense of current for flowing through the 1st conductor and flows through the described 3rd
The sense of current of conductor is set on the contrary, wherein, the 1st conductor is connected to the wave from the plus end of the inverter
Gushing prevents circuit, and the 3rd conductor is connected to the negative terminal of the inverter from the minus side terminal of the smoothing capacity device,
Also, the 2nd conductor and the 3rd conductor are arranged as opposed to, and the sense of current and stream that the 2nd conductor will be flowed through
The sense of current for crossing the 3rd conductor is set on the contrary, wherein, the 2nd conductor prevents circuit to be connected to institute from the surge
State the positive side terminal of smoothing capacity device.
2. power inverter according to claim 1, wherein,
As the 1st conductor, the 2nd conductor, the 3rd conductor and use busbar.
3. power inverter according to claim 1, wherein,
Printed base plate is set, the printed base plate connects the converter, the smoothing capacity device, the inverter, as
1st conductor, the 2nd conductor, the 3rd conductor and use and be installed on the pattern of the printed base plate.
4. power inverter according to any one of claim 1 to 3, wherein,
It is same flat that the inverter, the surge are prevented that the face for being provided with terminal of circuit and the smoothing capacity device is configured at
On face, and prevent the terminal arrangement of circuit and the smoothing capacity device on straight line the inverter, the surge.
5. power inverter according to any one of claim 1 to 4, wherein,
The rectification circuit that diode is set to bridge structure is used as the converter.
6. power inverter according to any one of claim 1 to 4, wherein,
The rectification circuit that switch element is set to bridge structure is used as the converter.
7. power inverter according to any one of claim 1 to 6, wherein,
The surge prevents that circuit from be connected by resistance with switch in parallel to form, and will form the inside distribution of the switch
It is arranged as opposed to the 3rd conductor, and the sense of current of the internal distribution will be flowed through and flow through the electricity of the 3rd conductor
The direction of stream is set to opposite.
8. power inverter according to any one of claim 1 to 6, wherein,
The surge prevents circuit to be connected in parallel by resistance with semiconductor element to form, inverse with the semiconductor element
Diode has been connected in parallel.
9. power inverter according to claim 8, wherein,
The surge prevents the semiconductor element of circuit to be made up of any one of IGCT, IGBT, MOSFET.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015-078190 | 2015-04-07 | ||
| JP2015078190 | 2015-04-07 | ||
| PCT/JP2016/057540 WO2016163201A1 (en) | 2015-04-07 | 2016-03-10 | Power conversion device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107624217A true CN107624217A (en) | 2018-01-23 |
| CN107624217B CN107624217B (en) | 2019-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201680019941.7A Expired - Fee Related CN107624217B (en) | 2015-04-07 | 2016-03-10 | Power conversion device |
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| Country | Link |
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| JP (1) | JP6054007B1 (en) |
| CN (1) | CN107624217B (en) |
| WO (1) | WO2016163201A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11373786B2 (en) * | 2019-02-06 | 2022-06-28 | Eaton Intelligent Power Limited | Bus bar assembly with integrated surge arrestor |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7027291B2 (en) | 2018-09-28 | 2022-03-01 | 三菱重工業株式会社 | Control device, its control method, control program, structure |
| AT521941A1 (en) * | 2018-12-13 | 2020-06-15 | Schneider Electric Power Drives Gmbh | Converter |
| JP2022032170A (en) * | 2020-08-11 | 2022-02-25 | 富士電機株式会社 | Power converter |
| JPWO2023084726A1 (en) * | 2021-11-12 | 2023-05-19 |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2016163201A1 (en) | 2016-10-13 |
| CN107624217B (en) | 2019-12-24 |
| JPWO2016163201A1 (en) | 2017-04-27 |
| JP6054007B1 (en) | 2016-12-27 |
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