CN105765846B - AC/AC converter for being converted between three phase mains and single phase poaer supply - Google Patents
AC/AC converter for being converted between three phase mains and single phase poaer supply Download PDFInfo
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- CN105765846B CN105765846B CN201480046397.6A CN201480046397A CN105765846B CN 105765846 B CN105765846 B CN 105765846B CN 201480046397 A CN201480046397 A CN 201480046397A CN 105765846 B CN105765846 B CN 105765846B
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Classifications
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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
- 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
- H02M5/02—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 without intermediate conversion into dc
- H02M5/04—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 without intermediate conversion into dc by static converters
- H02M5/22—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 without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M5/275—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 without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M5/293—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 without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal 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
- 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
- H02M5/02—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 without intermediate conversion into dc
- H02M5/04—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 without intermediate conversion into dc by static converters
- H02M5/10—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 without intermediate conversion into dc by static converters using transformers
- H02M5/14—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 without intermediate conversion into dc by static converters using transformers for conversion between circuits of different phase number
Abstract
The present invention relates to a kind of two-way AC/AC converters, to provide the improved AC/AC power supply conversion with reduced switching loss, the harmonic distortion of reduction and improved power factor.The converter be characterized in that include IGBT two-way switch, the output AC voltage which selectivelyes switch on to generate frequency between 50Hz to 30kHz.The conducting of IGBT for each phase of three phase mains is controlled by control circuit provided by the present invention.
Description
Technical field
The present invention relates generally to AC/AC converters.
Background technique
Many industrial applications require the conversion of AC/AC power supply.AC/AC converter is converted to an AC waveform another with pre-
The AC waveform of constant voltage and frequency.
AC/AC converter known in the art based on various topological structures, including voltage source inverter converter, electric current
Source inversion converter, ring-converter and matrix converter.Voltage source inverter converter and current source inverter converter generally with
Conduction loss and reduce their efficiency difference power factor it is related.Ring-converter purposes is limited, is generally used for wherein defeated
Power requirement is lower than the system of input power out.In general, AC/AC matrix converter include at least nine ovonic switch with
And other circuit units.The topological structure complex and expensive of matrix converter as known in the art, needs using a large amount of components.
Various parameters, such as switching frequency, total harmonic distortion, switching loss, harmonic generation and speed and response, are answered for difference
The development of power adapter is most important.
Accordingly, it is desirable to provide it is a kind of it is effective it is directly two-way, include not only small number of component, but also provide institute
The A C/AC converter of desired high output frequency.
Purpose
Some purposes that at least one embodiment of the present invention is adapted to provide for are described below:
A purpose of the invention is to improve one or more problem of the prior art, or at least provide useful substitution
Scheme.
A purpose of the invention is to provide a kind of two-way AC/AC converter with small number of two-way switch.
It is a further object of the present invention to provide a kind of two-way AC/AC converter, this AC/AC converter utilizes small number of
Two-way switch provides high-frequency output voltage.
It is a further object of the present invention to provide a kind of two-way AC/AC converters of optimization for reducing switching loss.
It is a further object of the present invention to provide a kind of simple, optimization two-way AC/AC converters.
It is a further object of the present invention to provide a kind of effective, optimization two-way AC/AC converters.
A further object of the present invention is to provide a kind of two-way AC/AC converter of optimization, to eliminate to energy-storage travelling wave tube
Demand.
Further, a purpose of the invention is to provide a kind of two-way AC/AC conversion with the optimization for improving power factor
Device.
A further object of the present invention is to provide a kind of two-way AC/AC converter of optimization, to reduce total harmonic distortion.
Other objects and advantages of the present invention will be more obvious in following description taken together with the accompanying drawings, is not intended to limit
The scope of the present invention processed.
Summary of the invention
According to the present invention, a kind of converter that input AC voltage is selectively converted to output AC voltage, institute are provided
It states converter to be connected between the terminal of three-phase AC power source and the terminal of single phase AC power, the converter includes:
First switch group, including three two-way switch, one end of each two-way switch is with the terminal one with three-phase AC power source
One corresponding mode connects, and the other end is connected to a terminal of single phase AC power；
Second switch group, including three two-way switch, one end of each two-way switch is with the terminal one with three-phase AC power source
One corresponding mode connects, and the other end is connected to the another terminal of single phase AC power；And
Controller, is connected to each switch for constituting the switch centering of each two-way switch, and the controller is suitable for
One switch of the switch centering of the scheduled two-way switch of the sequentially turned-on first switch group and the second switch group
Scheduled two-way switch switch centering another switch, be inclined corresponding to 60 degree of each of AC voltage of input of phase angle
It moves, thus generates output AC voltage of the frequency between 50Hz to 30kHz.
The converter can be single-stage converter, wherein the frequency of the single-phase AC output is in 1kHz to 30kHz range
It is interior.However, the frequency can be high or low compared with the value range according to the frequency capabilities of power device, loss and application.It is theoretical
On, limitation is not present to frequency or frequency range.
Converter according to the present invention, the converter includes sequentially turned-on multiple two-way switch, two-way to provide
Power flow.For example, output AC voltage is high frequency single-phase AC voltage when inputting AC voltage is phase AC voltage.Alternatively, when input
When AC voltage is single-phase AC voltage, output AC voltage is high frequency phase AC voltage.
The two-way switch for constituting switch pair can be the exhausted of a pair of reverse parallel connection cascode level structure with series diode
Edge fence gate gated transistors (IGBT).
Further, according to the present invention, controller described herein includes:
Multiple comparators, each comparator are suitable at least one of carrier wave and phase corresponding to three-phase AC power source
Reference signal is compared, and generates monopole switching signal (SPWM)；
Multiple and operation (AND-ing) device, each described and arithmetic unit, which is suitable for switching the unipolar voltage, to be believed
Number and frequency signal disjunction operation (AND), constituted the signal respectively switched of the two-way switch to generate to correspond to；And
Multiple or operation (OR-ing) device, each described or arithmetic unit, which is suitable for receiving corresponding to, constitutes each described open
The signal of the switch closed pair and to the signal logic or operation (OR), and apply also for generating trigger signal, in order
Connect switch.
According to the present invention, a kind of method for being converted to output AC voltage for AC voltage will to be inputted is provided, comprising steps of
Limit the first switch group including three two-way switch；
In a manner of one-to-one, the one end for connecting each two-way switch of the first switch group is electric to three-phase AC
The terminal in source；
The other end of each two-way switch of the first switch group is connected to a terminal of single phase AC power；
Limit the second switch group including three two-way switch；
In a manner of one-to-one, the one end for connecting each two-way switch of the second switch group is electric to three-phase AC
The terminal in source；
The other end of each two-way switch of the second switch group is connected to the another terminal of single phase AC power；With
And
It is sequentially turned-on constitute it is scheduled in each of the first switch group and second switch group switching group
One of centering switch of switch of two-way switch, is each 60 degree of phase angle, thus generates frequency between 50Hz extremely
The output AC voltage of 30kHz.
The step of sequentially turned-on switch mentioned above, is further comprising the steps of:
Triangular carrier and sinusoidal positive reference signal and sinusoidal negative reference signal are compared, the positive reference signal
Correspond to the phase of three-phase AC power source with the negative reference signal；
It generates unipolar voltage switching signal (SPWM)；
At least one of step (i) and (ii): (i) is executed selectively to the monopole switching signal and square wave frequency
Rate signal logic and operation, (ii) selectively expected frequency to the monopole switching signal and corresponding to AC output voltage
The inversion signal disjunction operation of the square wave frequency signal corresponds to the letter respectively switched for being constituted the two-way switch to generate
Number；
Signal logic or operation to the switch for corresponding to each switch pair of composition；And
Generate the sequentially turned-on switch of trigger signal.
Detailed description of the invention
Two-way AC/AC converter of the invention is illustrated below in conjunction with attached drawing, in which:
Fig. 1 shows the topological structure of conventional indirect AC/AC converter；
Fig. 2 shows the topological structures of direct AC/AC converter；
Fig. 3 shows the power circuit of the two-way AC/AC converter of one embodiment of the invention；
Fig. 4 is the schematic diagram figure of control circuit, and it illustrates the lifes of the trigger signal for two-way switch shown in Fig. 3
At；
Fig. 5 shows the waveform of the single-phase output voltage across load；And
Fig. 6 and Fig. 7 is shown for the different inputs being applied on the two-way AC/AC converter of one embodiment of the invention
Voltage, the waveform of corresponding output voltage.
Specific embodiment
Two-way AC/AC converter is described below in conjunction with the attached drawing for not limiting the scope of the invention.This description is only led to
The mode for crossing example and diagram provides.
Embodiment herein and its various features and advantageous details will combine non-limiting reality in the following description
Example is applied to be illustrated.The description of known assemblies and processing technique is omitted herein, is generated not to avoid to embodiment herein
It is necessary to obscure.Example used herein is merely intended to facilitate the embodiment for understanding that the present invention can be implemented, and further makes
Those skilled in the art can implement embodiments of the present invention.Therefore, example is not construed as to embodiment of the present invention
The limitation of range.
Fig. 1 shows the topological structure of conventional indirect AC/AC converter.As shown, the topological structure provides storage
Energy element (10), it typically is capacitor or inductors.In this topological structure, the AC input of input converter is converted first
At the DC output being stored in energy-storage travelling wave tube (10).Later, the energy of energy-storage travelling wave tube (10) storage is further converted into institute's phase
The AC output wait be provided to connection load hoped.
From the point of view of the foregoing description of Fig. 1, it is evident that the topological structure needs at least two-stage power conversion, thus needs
Use multiple power semiconductors.Moreover, increased conducting and switching loss will lead to based on indirect AC/AC converter
Higher total harmonic distortion, low power factor and low efficiency are generated in the converter of topological structure.
Fig. 2 shows the topological structures of direct AC/AC converter.As shown, the topological structure of this converter is used to incite somebody to action
Ac input voltage is converted to another AC output voltage, without needed for any conventional indirect AC-AC converter shown in FIG. 1
Direct DC link.The topological structure, which passes through, substitutes multiple switching stages and intermediate energy storage element with single power conversion stage, gram
The limitation for having taken conventional indirect AC-AC converter shown in FIG. 1, thus reduces the topological structure based on matrix converter
Loss in converter.
Fig. 3 shows the power circuit of the two-way AC/AC converter of one embodiment of the invention.The converter is connected to three-phase
Between the terminal of AC power supplies and the terminal of single phase AC power.Power circuit (300) includes 6 two-way switch, each two-way switch packet
Include the insulated gate gate transistors (IGBT) of a pair of reverse parallel connection cascode level structure with series diode.6 two-way switch
It is divided into two switching groups.The one end for constituting 3 two-way switch of first switch group is connected to three-phase AC in a manner of one-to-one
One phase of input, the other end are connected to the terminal (302) of single phase AC power.Constitute 3 two-way switch of second switch group
One end is connected to a phase of three-phase AC input in a manner of one-to-one, and the other end is connected to another end of single phase AC power
Sub (304).
To mark related various assemblies with the alphanumeric that following specification provides generally convenient for explaining.
First two-way switch includes IGBT T1 and T2 and respective series diode D1 and D2, the second two-way switch packet
Include IGBT T3 and T4 and respective series diode D3 and D4, third two-way switch includes IGBT T5 and T6 and respective
Series diode D5 and D6, the 4th two-way switch include IGBT T7 and T8 and respective series diode D7 and D8, and the 5th pair
To switch include IGBT T9 and T10 and its respective series diode D9 and D10 and the 6th two-way switch includes IGBT
T11 and T12 and its respective series diode D11 and D12.
Controller is connected to each switch for constituting the switch pair of each two-way switch.The sequentially turned-on first switch of the controller
The switch centering of the scheduled two-way switch of a switch and second switch group for the switch centering of the scheduled two-way switch of group
Another switch, deviated with 60 the degree of each phase angle that correspond to input AC voltage, thus generate frequency between 50Hz
To the output AC voltage of 30kHz.
In 360 degree of periods of input AC waveform, two switch meetings in 12 switches of 6 two-way switch are only constituted
The trigger signal generated according to controller is in 6 time intervals (with sequence pattern in each of (I, II, III, IV, V, VI)
Conducting.The switching mode respectively switched is predefined according to the table 1 being provided below.
Table 1
| Connect phase | RY | YB | BR | RB | BY | YR |
| Interval | I | II | III | IV | V | VI |
| Switch | ||||||
| T1 | It opens | 0 | 0 | 0 | 0 | 0 |
| T2 | 0 | 0 | 0 | 0 | 0 | It opens |
| T3 | 0 | It opens | 0 | 0 | 0 | 0 |
| T4 | 0 | 0 | 0 | 0 | It opens | 0 |
| T5 | 0 | 0 | It opens | 0 | 0 | 0 |
| T6 | 0 | 0 | 0 | It opens | 0 | 0 |
| T7 | 0 | 0 | 0 | It opens | 0 | 0 |
| T8 | 0 | 0 | It opens | 0 | 0 | 0 |
| T9 | 0 | 0 | 0 | 0 | 0 | It opens |
| T10 | It opens | 0 | 0 | 0 | 0 | 0 |
| T11 | 0 | 0 | 0 | 0 | It opens | 0 |
| T12 | 0 | It opens | 0 | 0 | 0 | 0 |
Correspond to AC waveform 0-60 degree first interval (I) in, R is connected with Y is connected to input power, IGBT T1 with
T10 is connected, and provides output to terminal (302) and (304) respectively.
Correspondingly, in the second interval (II) for corresponding to the 60-120 degree of AC waveform, Y is connected with B is connected to input power,
IGBT T3 is connected with T12, and provides output to terminal (302) and (304) respectively.
Correspondingly, in the third interval (III) of 120-180 degree for corresponding to AC waveform, B is connected with R is connected to input electricity
Source, IGBT T5 are connected with T8, and provide output to terminal (302) and (304) respectively.
In the 4th interval (IV) for corresponding to the 180-240 degree of AC waveform, R is connected with B is connected to input power, IGBT
T6 is connected with T7, and provides output to terminal (302) and (304) respectively.
In the 5th interval (V) for corresponding to the 240-300 degree of AC waveform, B is connected with Y is connected to input power, IGBT T4
It is connected with T11, and provides output to terminal (302) and (304) respectively.
In the 6th interval (VI) for corresponding to the 300-360 degree of AC waveform, Y is connected with R is connected to input power, IGBT
T2 is connected with T9, and provides output to terminal (302) and (304) respectively.
Description provided above can be construed to refer to conversion of the three-phase input AC voltage to single-phase output AC voltage.
Fig. 4 is the schematic diagram of control circuit (400), and it illustrates the trigger signals for two-way switch shown in Fig. 3
It generates.Circuit (400) shows control circuit (respectively the R phase, Y phase of power circuit and the converter for Fig. 3 in Fig. 3
With B phase) it is integrated.It include two comparators comp1 and comp2 with each mutually associated control circuit.Comparator comp1 and
Each of comp2 receives positive reference signal and negative reference signal an input respectively, receives second input
The generally carrier voltage signal CV of triangular wave.Positive reference signal is connected to the non-inverting terminals of comparator comp1, negative benchmark letter
Number it is connected to the non-inverting terminals of comparator comp2.Comparator comp1 and comp2 is by reference signal and carrier voltage signal CV
It is compared, and generates unipolar voltage switching signal SPWM at output.Unipolar voltage switching signal SPWM and frequency logic are believed
Number (f logic) is provided to two pairs and arithmetic unit (usually with door) together.Respectively received at Men Yi input terminal
SPWM signal receives frequency logic (f logic) at another input terminal.It is a pair of that (f is patrolled with door reception frequency logic signal
Volume), another pair and door receive reverse phase frequency logic signal (f logic).Generally the frequency logic signal (f logic) of square wave determines
The output frequency of two-way AC/AC converter.With the output with door of each mutually associated control circuit of three-phase AC power source into one
Step is used as or the input of arithmetic unit or arithmetic unit are usually or door, for opening to corresponding to each two-way switch pair of composition
The signal logic of pass or operation, and trigger signal is generated, for being connect in order according to the predetermined switch sequence of table 1 provided above
Open up pass.Circuit (400) includes or door, this or door are configured to:
The output of control circuit associated with R phase is respectively connected to IGBT T1, T2, T7 and T8；
The output of control circuit associated with Y phase is respectively connected to IGBT T3, T4, T9 and T10；And
The output of control circuit associated with B phase is respectively connected to IGBT T5, T6, T11 and T12.
Realization, connection scheme and the switching sequence of two-way switch make converter of the invention can be applied to bidirectional power
Stream is utilized so that converter of the invention be made to be suitable for regeneration energy.Therefore, when input AC voltage is phase AC voltage
When, output AC voltage is single-phase AC voltage, and vice versa.
Converter of the invention is more particularly to generating high frequency output AC voltage of the frequency within the scope of 1kHz to 30kHz.
In the case where needing single-phase ac input voltage being converted to three-phase AC output voltage, by single-phase high frequency AC input electricity
Source is supplied to the power circuit including switching device, by the three-phase AC output supply with basic line frequency to AC power grid.Line is same
Three-phase AC output generated is walked, the presence (grid connection) of power grid is made to be for two-way A C/AC converter of the invention
It is necessary.
Fig. 5 shows the single-phase output voltage waveform across load, and wherein single-phase output voltage is from three-phase input voltage source
Middle acquisition.
Fig. 6 and Fig. 7 is shown for the different inputs being applied on the two-way A C/AC converter of the embodiment of the present invention
Voltage, the waveform of corresponding output voltage.Waveform corresponding to each phase is by 120 degree of offsets.
AC/AC converter of the invention is usually applied to traction locomotive, DC motor control (the DC driving in processing industry
Device), AC motor control (AC driver), battery charger, for the high-voltage rectifier of electrostatic precipitation, for electrochemical applications
High-current rectifier, Treatment of Metal Surface rectifier, high pressure (HV) DC transmission device, renewable energy and power supply regenerative.
Following table 2 gives AC/AC converter in the prior art compared with two-way AC/AC converter of the invention,
To illustrate the advance of converter technology of the present invention.
Table 2
Test data
Following table 3 gives the test report of the prototype of two-way AC-AC converter of the present invention.
Output frequency: 30Khz
Delta frequency: 7Khz
Load: resistance (No. 12 500 Ω/1200W)
Rated power: 3Kw
Table 3-reading:
Technological progress and economic significance
Technological progress provided by the present invention includes realizing:
Two-way AC-AC converter with lesser amt two-way switch；
The two-way AC-AC converter of high output frequency is provided using small number of two-way switch；
The two-way AC-AC converter for the optimization that switching loss reduces；
Simply, the two-way AC-AC converter optimized；
Effectively, the two-way AC-AC converter optimized；
Eliminate the two-way AC-AC converter of the optimization to energy-storage travelling wave tube demand；
The two-way AC-AC converter of the increased optimization of power factor；And
The two-way AC-AC converter for the optimization that total harmonic distortion reduces.
It is construed as through the word " comprising " of this specification or its modification comprising the element, entirety or step
Suddenly, but any other element, integer or step are not excluded for.
It the use of word " at least " or "at least one" is to imply to go out using one or more elements or material or amount, this usage
Now in an embodiment of the present invention to obtain one or more expectation purposes or result.
The above-mentioned numerical value for various physical parameters, size or amount is only approximation, it is contemplated that relatively distributes to ginseng
Number, the value that the numerical value of size or amount is high/low each fall within the scope of the present invention, unless having in the present specification specific opposite old
It states.
The specified range no matter being worth is how much, the minimum and highest numerical value of specified range respectively float up and down 10% value all
It is included within the scope of the invention.
The description of above-mentioned specific embodiment is by the complete generality for disclosing embodiment of the present invention, so that other people are by answering
Easily can be modified and/or be adjusted with existing knowledge makes that it is suitable for the various specific realities for not departing from universal for example
The application of example is applied, therefore, such adjustment and modification should and be intended to be included in the meaning and model of the equivalent of the embodiment of the present invention
In enclosing.It will be appreciated that word used herein and term are only to describe rather than limit.Therefore, when embodiment herein with
When the mode of preferred embodiment describes, it will be appreciated by persons skilled in the art that in the essence and model of embodiment as described herein
In enclosing, it is possible to implement the embodiment of modification of the present invention.
Claims (6)
1. a kind of bidirectional transducer, for input AC voltage to be selectively converted to output AC voltage, the converter is used for
It is connected between the terminal of three-phase AC power source and the terminal of single phase AC power, the converter includes:
First switch group, including three two-way switch, wherein one end of each two-way switch is with the terminal one with three-phase AC power source
One corresponding mode connects, and the other end is connected to a terminal of single phase AC power；
Second switch group, including three two-way switch, wherein one end of each two-way switch is with the terminal one with three-phase AC power source
One corresponding mode connects, and the other end is connected to another terminal of single phase AC power；And
Controller is connected to each switch for constituting the switch centering of each two-way switch, and the controller is in order
Connect a switch of switch centering and the making a reservation for for the second switch group of the scheduled two-way switch of the first switch group
Two-way switch switch centering another switch, to correspond to 60 degree of each of AC voltage of input of phase angle, by
This generates frequency between the output AC voltage of 50Hz to 30kHz；
Wherein the controller includes:
Multiple comparators, each comparator be used for by carrier voltage signal and phase corresponding to three-phase AC power source with it is described
Each corresponding reference signal of comparator is compared and generates monopole switching signal, wherein described in the carrier voltage signal is determining
Export the amplitude of AC voltage；
Multiple and arithmetic unit, each described and arithmetic unit are used to carry out the monopole switching signal and frequency logic signal
With operation, and the monopole switching signal and reverse phase frequency logic signal are carried out and operation, is constituted institute to generate to correspond to
The signal of two switches of the switch pair of each two-way switch is stated, wherein the frequency logic signal determines the output AC voltage
Frequency；And
Multiple or arithmetic unit, each described or arithmetic unit are used to receive the described of generation and correspond to each two-way opened of composition
Two signals switched of the switch pair of pass and signal logic or operation to described two switches, and it is also used to generate triggering
Signal, each switch for the sequentially turned-on switch pair for constituting each two-way switch.
2. bidirectional transducer as described in claim 1, wherein the converter is single-stage converter.
3. bidirectional transducer as described in claim 1, wherein the input AC voltage is phase AC voltage, the output AC
Voltage is single-phase AC voltage.
4. bidirectional transducer as described in claim 1, wherein the input AC voltage is single-phase AC voltage, the output AC
Voltage is phase AC voltage.
5. bidirectional transducer as described in claim 1, wherein the switch has series diode insulated gate double to for a pair
Bipolar transistor (IGBT), the pair of insulated gate bipolar transistor (IGBT) form reverse parallel connection cascode level structure.
6. a kind of AC voltage that will input is converted to the method for exporting AC voltage, the method includes the steps:
Limit the first switch group including three two-way switch；
In a manner of one-to-one, one end of each two-way switch of the first switch group is connected to three-phase AC power source
Terminal；
The other end of each two-way switch of the first switch group is connected to a terminal of single phase AC power；
Limit the second switch group including three two-way switch；
In a manner of one-to-one, one end of each two-way switch of the second switch group is connected to three-phase AC power source
Terminal；
The other end of each two-way switch of the second switch group is connected to the another terminal of single phase AC power；And
It is sequentially turned-on constitute it is scheduled two-way in each of the first switch group and second switch group switching group
One of centering switch of switch of switch thus generates frequency between 50Hz extremely to realize each 60 degree of phase angle
The output AC voltage of 30kHz；
Wherein, the step of sequentially turned-on switch is further comprising the steps of:
Triangular carrier and sinusoidal positive reference signal and sinusoidal negative reference signal are compared respectively and generate monopole switching
Signal, the positive reference signal and the negative reference signal correspond to the phase of three-phase AC power source, wherein the triangular carrier determines
The amplitude of the output AC voltage；
Execute step: (i) selectively selects the monopole switching signal and square wave frequency logical signal and operation, and (ii)
Selecting property to the monopole switching signal and corresponding to output AC voltage expected frequency square wave frequency signal inversion signal
Logic and operation, to generate the signal for two switches for corresponding to the switch pair for being constituted each two-way switch, wherein the side
Frequency signal determines the frequency of the output AC voltage；
To correspond to described in generation the signals for constituting two switches of switch pair of each two-way switch carry out logics or
Operation；And
Generate the trigger signal for being used for the sequentially turned-on switch.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IN6/MUM/2013 | 2013-06-20 | ||
| PCT/IN2014/000414 WO2014203282A2 (en) | 2013-06-20 | 2014-06-20 | Ac/ac converter for conversion between three phase and single phase power supplies |
| IN6MU2013 IN2013MU00006A (en) | 2013-06-20 | 2014-06-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105765846A CN105765846A (en) | 2016-07-13 |
| CN105765846B true CN105765846B (en) | 2019-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480046397.6A Active CN105765846B (en) | 2013-06-20 | 2014-06-20 | AC/AC converter for being converted between three phase mains and single phase poaer supply |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3011665A4 (en) |
| CN (1) | CN105765846B (en) |
| IN (1) | IN2013MU00006A (en) |
| WO (1) | WO2014203282A2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5274538A (en) * | 1990-10-16 | 1993-12-28 | Mitsubishi Denki Kabushiki Kaisha | Power conversion apparatus |
| CN103038993A (en) * | 2011-05-26 | 2013-04-10 | 松下电器产业株式会社 | AC conversion circuit, AC conversion method, and recording medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5909367A (en) * | 1997-06-02 | 1999-06-01 | Reliance Electric Industrial Company | Modular AC-AC variable voltage and variable frequency power conveter system and control |
| EP1306964A1 (en) * | 2001-10-29 | 2003-05-02 | Phase Motion Control S.r.l. | Control method for an AC-AC matrix converter |
| US7310254B2 (en) * | 2006-02-15 | 2007-12-18 | Rockwell Automation Technologies, Inc. | AC-to-AC (frequency) converter with three switches per leg |
| JP4029904B2 (en) * | 2006-04-28 | 2008-01-09 | ダイキン工業株式会社 | Matrix converter and control method of matrix converter |
| JP4957303B2 (en) * | 2007-03-14 | 2012-06-20 | 株式会社明電舎 | Space vector modulation method for AC-AC direct conversion device |
| JP5377603B2 (en) * | 2011-09-06 | 2013-12-25 | 日産自動車株式会社 | Power converter |
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2014
- 2014-06-20 CN CN201480046397.6A patent/CN105765846B/en active Active
- 2014-06-20 EP EP14814235.9A patent/EP3011665A4/en not_active Ceased
- 2014-06-20 WO PCT/IN2014/000414 patent/WO2014203282A2/en active Application Filing
- 2014-06-20 IN IN6MU2013 patent/IN2013MU00006A/en unknown
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5274538A (en) * | 1990-10-16 | 1993-12-28 | Mitsubishi Denki Kabushiki Kaisha | Power conversion apparatus |
| CN103038993A (en) * | 2011-05-26 | 2013-04-10 | 松下电器产业株式会社 | AC conversion circuit, AC conversion method, and recording medium |
Non-Patent Citations (1)
| Title |
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| 矩阵式单相变频电源自然换流驱动策略研究;吴胜华等;《空军雷达学院学报》;20110630;第25卷(第3期);第189-191页第1-2节，图1-3 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3011665A2 (en) | 2016-04-27 |
| EP3011665A4 (en) | 2017-04-26 |
| WO2014203282A3 (en) | 2015-04-30 |
| IN2013MU00006A (en) | 2015-06-05 |
| CN105765846A (en) | 2016-07-13 |
| WO2014203282A2 (en) | 2014-12-24 |
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