CN106786535A - Grid stimulating device and its control method - Google Patents
Grid stimulating device and its control method Download PDFInfo
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- CN106786535A CN106786535A CN201611243301.2A CN201611243301A CN106786535A CN 106786535 A CN106786535 A CN 106786535A CN 201611243301 A CN201611243301 A CN 201611243301A CN 106786535 A CN106786535 A CN 106786535A
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- modular multilevel
- voltage
- matrix converter
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- multilevel matrix
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
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Abstract
The present invention relates to power network analogue technique field, a kind of grid stimulating device and its control method are disclosed.The grid stimulating device includes：The modular multilevel matrix converter and wave filter being connected；The input side of modular multilevel matrix converter is used to connect mains supply, and outlet side is used to connect the input of wave filter；Modular multilevel matrix converter is used for the number of phases as the mains supply of M enters line translation and exports the voltage of transformation that the number of phases is L；Modular multilevel matrix converter includes：Topological structure is identical and number is the bridge arm of the product of M and L, and each bridge arm is connected between the input side of modular multilevel matrix converter and outlet side with the matrix form that M multiplies L；Each bridge arm includes：The bridge arm inductance of concatenation and N number of modularization level converter unit.Present embodiment can not only control the high-power power network of output voltage simulated high-pressure of grid stimulating device by adjusting the quantity of electric level conversion modular, and can effectively control its overall volume.
Description
Technical field
The present invention relates to power network analogue technique field, more particularly to a kind of grid stimulating device and its control method.
Background technology
Voltage dip, voltage flicker, voltage distortion and the voltage that actual electric network can be simulated due to grid stimulating device are not
The abnormal operations such as balance, thus it can be the equipment of generating electricity by way of merging two or more grid systems, electric power in the case where not influenceing actual electric network to run
The related research of the developments such as energy storage device, power transmitting device and Electric Drive equipment and test provide facility.
With increasing for power network analog study, it is proposed that some grid stimulating devices.Prior art one discloses one
Planting high-power energy can feedback type grid stimulating device, PWM (the Pulse Width that it includes general DC busbar
Modulation, pulse width modulation, abbreviation PWM) rectifying part and power grid analog part point.PWM rectifying parts include that input is filtered
Ripple unit, three-phase bridge rectification unit, power grid analog part point include that three single-phase inverters, output filter unit and isolation are single
Unit.Prior art two discloses a kind of AC power of simulating grid characteristic, and it is by G fairings, three-phase H bridge construction unsteady flows
Device, three-phase transformer are sequentially connected composition.
The present inventor realize it is of the invention during find：Due to power network simulation dress disclosed in prior art one
The power output put depends on the input power of PWM rectifying parts, and the three-phase bridge rectification unit of PWM rectifying parts is caused
The input power of PWM rectifying parts is smaller, therefore the power output of the grid stimulating device is smaller.Due to the grid stimulating device
Output voltage be equal to the output voltage of power grid analog part point, and the single-phase inverter of power grid analog part point causes power grid analog part
The output voltage for dividing is smaller, therefore the output voltage of the grid stimulating device is also smaller.So in terms of voltage and power two
To weigh, the grid stimulating device is merely able to simulate low pressure small-power power network.And AC power disclosed in prior art two is defeated
Go out power depending on three-phase transformer, and with the increase of power output, the volume and weight of three-phase transformer is also significantly increased,
Therefore, the more difficult high-power power network of easily simulated high-pressure of the grid stimulating device of prior art.
The content of the invention
The purpose of embodiment of the present invention is to provide a kind of grid stimulating device and its control method, and it can not only lead to
The quantity for crossing adjustment electric level conversion modular controls the high-power power network of output voltage simulated high-pressure of grid stimulating device, and can
Effectively control its overall volume.
In order to solve the above technical problems, embodiments of the present invention provide a kind of grid stimulating device, including：It is connected
Modular multilevel matrix converter and wave filter；The input side of the modular multilevel matrix converter is used to connect
Mains supply, outlet side is used to connect the input of the wave filter；The modular multilevel matrix converter is used for phase
Number is for the mains supply of M enters line translation and exports the voltage of transformation that the number of phases is L；The modular multilevel matrix converter bag
Include：Topological structure is identical and number is the bridge arm of the product of M and L, and each bridge arm is connected to institute with the matrix form that M multiplies L
State between the input side and outlet side of modular multilevel matrix converter；Each bridge arm includes：The bridge arm inductance and N number of mould of concatenation
Block level translation unit；Wherein, the size positive correlation of the output voltage of the grid stimulating device and the N, the N is for just
Integer.
Embodiments of the present invention additionally provide a kind of control method of grid stimulating device, foregoing for controlling
The output voltage of grid stimulating device, including：According to the output reference voltage of the modular multilevel matrix converter, control
Obtain the bridge arm reference voltage of each bridge arm in the modular multilevel matrix converter；Acquisition module multi-level matrix is converted
The capacitance voltage of all modularization level converter units in device；Bridge arm reference voltage and modular multilevel according to each bridge arm
The capacitance voltage of each modularization level converter unit in matrix converter, control obtains the module of each modularization level converter unit
Voltage reference value；By the reference electricity for modulating each modularization level converter unit in the modular multilevel matrix converter
Pressure, so as to control the output voltage of the simulating grid device.
Embodiment of the present invention in terms of existing technologies, using modular multilevel matrix converter to mains supply
Enter line translation, because each bridge arm in modular multilevel matrix converter includes N number of modularization level converter unit, and
And, the number positive correlation of the modularization level converter unit in the output voltage and bridge arm of grid stimulating device, it is possible to root
According to the quantity of the output voltage setting modularization level converter unit of the power network for needing simulation, difference is gone out such that it is able to flexible design
The grid stimulating device of output voltage, and then high-power grid stimulating device can be realized, also, due to modularization level
The volume of converter unit, weight are smaller, so for the three-phase transformer of relative volume large and bulky, additionally it is possible to effectively control
The overall volume of grid stimulating device.
In addition, the modularization level converter unit includes 4 full-control type devices of module capacitance and composition H bridge construction units
Part；The module capacitance is connected to the H bridge constructions unit.Because each modularization level converter unit is that single-phase full bridge becomes
Parallel operation, therefore the grid stimulating device can realize four quadrant running, so as to realize energy feedback to power network.
In addition, according to each modularization in the bridge arm reference voltage and modular multilevel matrix converter of each bridge arm
The capacitance voltage of level translation unit, control obtains the module voltage reference value of each modularization level converter unit, specifically includes：
It is calculated the average value of the bridge arm reference voltage of each bridge arm in the modular multilevel matrix converter；Respectively to modularization
The capacitance voltage of each modularization level converter unit carries out module capacitance voltage balancing control in multilevel matrix converter, obtains
The module voltage reference value of each modularization level converter unit；Wherein, the module capacitance voltage balancing control so that modularization
The capacitance voltage of each modularization level converter unit in multilevel matrix converter, equal to where each modularization level converter unit
The capacitance voltage average value of bridge arm.
In addition, according to the output reference voltage of the modular multilevel matrix converter, control obtains the modularization
The bridge arm reference voltage of each bridge arm, specifically includes in multilevel matrix converter：To the modular multilevel matrix converter
Input side electric current carry out input current control so that the input side electric current of modular multilevel matrix converter be equal to input electricity
Stream reference value；Outlet side electric current to the modular multilevel matrix converter carries out output current control so that modularization
The outlet side electric current of multilevel matrix converter is equal to output current reference value；To the modular multilevel matrix converter
Circulation carries out circulation control so that the circulation inside modular multilevel matrix converter is equal to circulation reference value；By described
Input current control, output current control and circulation control, obtain the bridge arm voltage reference value of each bridge arm.
In addition, the acquisition of the input current reference value includes：The first difference is calculated, wherein first difference is
All Modular electricals in the capacitance voltage reference value and modular multilevel matrix converter of modular multilevel matrix converter
The difference of the capacitance voltage average value of flat converter unit；Global capacitor voltage balance control is carried out to first difference, mould is obtained
The input current reference value of block multilevel matrix converter；Wherein, the global capacitor voltage balance control so that modularization
The capacitance voltage average value of all modularization level converter units is equal to modular multilevel matrix in multilevel matrix converter
The capacitance voltage reference value of converter.
In addition, the acquisition of the output current reference value includes：The second difference is calculated, wherein second difference is
The output voltage reference value and the difference of output voltage of grid stimulating device；Output voltage control is carried out to second difference, is obtained
To the output current reference value of modular multilevel matrix converter.
In addition, the acquisition of the circulation reference value includes：To the module of each bridge arm of modular multilevel matrix converter
Capacitance voltage average value carries out bridge arm capacitor voltage balance control；And to the input of the modular multilevel matrix converter
Side and outlet side electric current carry out module capacitance voltage pulsation and suppress control, obtain the modular multilevel matrix converter
Circulation reference value.
In addition, the bridge arm capacitor voltage balance control so that the mould of each bridge arm in modular multilevel matrix converter
Block capacitance voltage average value is equal to the capacitance voltage of all modularization level converter units in modular multilevel matrix converter
Average value.
In addition, the module capacitance voltage pulsation suppresses control so that the mould that modular multilevel matrix converter occurs
Block voltage fluctuation of capacitor is inhibited.
Brief description of the drawings
Fig. 1 is the structural representation according to first embodiment of the invention grid stimulating device；
Fig. 2 is the structural representation according to first embodiment of the invention bridge arm；
Fig. 3 is the structural representation according to modularization level converter unit in first embodiment of the invention；
Fig. 4 is the flow chart of the control method according to second embodiment of the invention grid stimulating device；
Fig. 5 is to be controlled to obtain input current reference by global capacitor voltage balance according to second embodiment of the invention
The flow chart of value；
Fig. 6 is the flow that output current reference value is obtained by output voltage control according to second embodiment of the invention
Figure；
Fig. 7 is to be controlled by bridge arm capacitor voltage balance according to second embodiment of the invention and module capacitance voltage
Fluctuation suppresses the flow chart that control obtains circulation reference value；
Fig. 8 is by bridge arm voltage reference value and module capacitance balance of voltage control according to second embodiment of the invention
The flow chart of module voltage reference value is obtained.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to each reality of the invention
The mode of applying is explained in detail.However, it will be understood by those skilled in the art that in each implementation method of the invention,
In order that reader more fully understands the application and proposes many ins and outs.But, even if without these ins and outs and base
Many variations and modification in following implementation method, it is also possible to realize the application technical scheme required for protection.
First embodiment of the invention is related to a kind of grid stimulating device, and its structure is as shown in figure 1, power network simulation dress
Put including：The modular multilevel matrix converter and wave filter being connected.The input of modular multilevel matrix converter
Side is used to connect mains supply (a, b, c), and outlet side is used to connect the input of wave filter, and the output end of wave filter is used to connect
Equipment under test (not shown).Wherein, modular multilevel matrix converter is used for the number of phases as the mains supply of M enters line translation simultaneously
The output number of phases is the voltage of transformation of L.Mains supply is also with three-phase with three-phase mains power network and output voltage in present embodiment
Example is illustrated (i.e. M and L are equal to 3).Unrestricted as an example, the wave filter of present embodiment uses LC wave filters, should
Wave filter is made up of three filter inductances and three filter capacitors, and LC wave filters are to modular multilevel matrix converter outlet side
Three-phase voltage be filtered respectively after export grid stimulating device three-phase output voltage (u, v, w).
Modular multilevel matrix converter includes：Topological structure is identical and number is the bridge arm of the product of M and L, and
Each bridge arm is connected between the input side of modular multilevel matrix converter and outlet side with the matrix form of MXL.Wherein, it is right
For three-phase, the grid stimulating device of output three-phase is input into, every corresponding 3 bridge arms of three-phase electricity that is, will using 3 bridge arms
Every phase transformation of mains supply is changed to three-phase electricity, and the three-phase electricity after conversion is converged in the outlet side of modular multilevel matrix converter
Close, so that the power supply after conversion is identical with the number of phases of mains supply.
As shown in Fig. 2 each bridge arm in present embodiment includes：The bridge arm inductance of concatenation and N number of modularization level translation
Unit (module in Fig. 2 is the abbreviation of modularization level change unit).N number of modularization level converter unit in each bridge arm
Topological structure is identical so that the design of grid stimulating device is greatly simplified.Can be added in theory due to each bridge arm and appointed
The multiple modularization level converter units of meaning, so the input side and outlet side of modular multilevel matrix converter can bear
High pressure, therefore the grid stimulating device can realize powerful power converter.
As shown in figure 3, each modularization level converter unit includes 4 full controls of module capacitance and composition H bridge construction units
Type device, module capacitance is connected to H bridge construction units.Therefore, each modularization level converter unit is a single-phase full bridge
Converter, so that modular multilevel matrix converter can realize four quadrant running, and then can realize energy feedback.
In present embodiment, N is positive integer, the output voltage of grid stimulating device and the size positive correlation of N.That is, bridge arm
In modularization level converter unit quantity it is more, the output voltage that grid stimulating device can be provided is higher.Also, this reality
The mode of applying uses modular construction, reduces the complexity of grid stimulating device design.Additionally, present embodiment is improving output
Cause that the overall volume of grid stimulating device can be bright compared with the three-phase transformer of identical power output is provided while voltage
It is aobvious to reduce.
It is many that present embodiment multiplies L topological identical bridge arm comprising modules in terms of existing technologies, by M
Level matrix converter enters line translation to mains supply so that the output voltage of grid stimulating device can be with the mould in each bridge arm
The increase of the quantity of block level translation unit and improve.Therefore, present embodiment is provided for the simulation of high-power power network
A kind of preferably implementation.
Second embodiment of the present invention is related to a kind of control method of grid stimulating device, for controlling to implement such as first
The output voltage of the grid stimulating device described in mode, its flow is as shown in Figure 4.
As shown in figure 4, the control method of the grid stimulating device of present embodiment includes：
Step 401：According to the output reference voltage of modular multilevel matrix converter, control obtains modular multilevel
The bridge arm reference voltage of each bridge arm in matrix converter.
Wherein, step 401 includes following sub-step：
Sub-step 4011：Input side electric current to modular multilevel matrix converter carries out input current control so that
The input side electric current of modular multilevel matrix converter is equal to input current reference value.
As shown in figure 5, the acquisition of input current reference value includes：The first difference is calculated, wherein the first difference is mould
All modularization level in the capacitance voltage reference value and modular multilevel matrix converter of block multilevel matrix converter
The difference of the capacitance voltage average value of converter unit.The control of global capacitor voltage balance is carried out to the first difference, and how electric obtain modularization
The input current reference value of flat matrix converter.Wherein, global capacitor voltage balance control so that modular multilevel matrix becomes
The capacitance voltage average value of all modularization level converter units is equal to the electric capacity of modular multilevel matrix converter in parallel operation
Voltage reference value.
Sub-step 4012：Outlet side electric current to modular multilevel matrix converter carries out output current control so that
The outlet side electric current of modular multilevel matrix converter is equal to output current reference value.
As shown in fig. 6, the acquisition of output current reference value includes：The second difference is calculated, the second difference is power network mould
Intend the output voltage reference value of device and the difference of output voltage.Second difference is carried out to obtain modularization after output voltage control
The output current reference value of multilevel matrix converter.
Sub-step 4013：Circulation to modular multilevel matrix converter carries out circulation control so that how electric modularization is
Circulation inside flat matrix converter is equal to circulation reference value.
As shown in fig. 7, the acquisition of circulation reference value includes：To the module of each bridge arm of modular multilevel matrix converter
Capacitance voltage average value carries out bridge arm capacitor voltage balance control, and to the input side of modular multilevel matrix converter with
And outlet side electric current carries out module capacitance voltage pulsation and suppresses control, the circulation reference of modular multilevel matrix converter is obtained
Value.Wherein, bridge arm capacitor voltage balance control so that the module capacitance voltage of each bridge arm in modular multilevel matrix converter
Average value is equal to the capacitance voltage average value of all modularization level converter units in modular multilevel matrix converter.Module
Voltage fluctuation of capacitor suppresses control so that the module capacitance voltage pulsation that modular multilevel matrix converter occurs is pressed down
System.
Sub-step 4014：Controlled by input current control, output current and circulation controls to obtain the bridge arm of each bridge arm
Voltage reference value.
Step 402：The capacitance voltage of all modularization level converter units in acquisition module multilevel matrix converter.
Wherein, the capacitance voltage of each modularization level converter unit can be collected by voltage sensor.
Step 403：Each modularization in bridge arm reference voltage and modular multilevel matrix converter according to each bridge arm
The capacitance voltage of level translation unit, control obtains the module voltage reference value of each modularization level converter unit.
Wherein, step 403 includes：
Sub-step 4031：Be calculated each bridge arm in modular multilevel matrix converter bridge arm reference voltage it is average
Value.
Sub-step 4032：Respectively to the electric capacity electricity of each modularization level converter unit in modular multilevel matrix converter
Pressure carries out module capacitance voltage balancing control, obtains the module voltage reference value of each modularization level converter unit.
Wherein, module capacitance voltage balancing control so that each modularization level becomes in modular multilevel matrix converter
The capacitance voltage for changing unit is equal to the capacitance voltage average value of bridge arm where each modularization level converter unit.
Step 404：By the reference electricity of each modularization level converter unit in modulation module multilevel matrix converter
Press so as to control the output voltage of simulating grid device.
Present embodiment by control the output voltage of each modularization level converter unit in grid stimulating device so as to
The output voltage of grid stimulating device is controlled, therefore can be with the voltage dip of the high-power power network of simulated high-pressure, voltage flicker, voltage
The various power network abnormal operations such as distortion and Voltage unbalance, for the equipment of generating electricity by way of merging two or more grid systems, power energy storage equipment, power transmission set
The research and test of standby and Electric Drive equipment etc. are provided convenience.
Above the step of various methods divide, be intended merely to description it is clear, can be merged into when realizing a step or
Some steps are split, multiple steps are decomposed into, as long as comprising identical logical relation, all in the protection domain of this patent
It is interior；To adding inessential modification in algorithm or in flow or introducing inessential design, but its algorithm is not changed
With the core design of flow all in the protection domain of the patent.
It will be appreciated by those skilled in the art that all or part of step in realizing above-described embodiment method can be by
Program is completed to instruct the hardware of correlation, and the program storage is in a storage medium, including some instructions are used to so that one
Individual equipment (can be single-chip microcomputer, chip etc.) or processor (processor) perform the application each embodiment methods described
All or part of step.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can store journey
The medium of sequence code.
It will be understood by those skilled in the art that the respective embodiments described above are to realize specific embodiment of the invention,
And in actual applications, can to it, various changes can be made in the form and details, without departing from the spirit and scope of the present invention.
Claims (10)
1. a kind of grid stimulating device, it is characterised in that including：The modular multilevel matrix converter being connected and filtering
Device；
The input side of the modular multilevel matrix converter is used to connect mains supply, and outlet side is used to connect the filtering
The input of device；
It is L's that the modular multilevel matrix converter is used to enter line translation to the mains supply that the number of phases is M and export the number of phases
Voltage of transformation；
The modular multilevel matrix converter includes：Topological structure is identical and number is the bridge arm of the product of M and L, respectively
The bridge arm is connected between the input side of the modular multilevel matrix converter and outlet side with the matrix form that M multiplies L；
Each bridge arm includes：The bridge arm inductance of concatenation and N number of modularization level converter unit；Wherein, the grid stimulating device
The size positive correlation of output voltage and the N, the N is positive integer.
2. grid stimulating device according to claim 1, it is characterised in that the modularization level converter unit includes mould
4 wholly-controled devices of block electric capacity and composition H bridge construction units；
The module capacitance is connected to the H bridge constructions unit.
3. a kind of control method of grid stimulating device, it is characterised in that for controlling electricity as described in claim 1 or 2
The output voltage of net analogue means, including：
According to the output reference voltage of the modular multilevel matrix converter, control obtains the modular multilevel matrix
The bridge arm reference voltage of each bridge arm in converter；
The capacitance voltage of all modularization level converter units in acquisition module multilevel matrix converter；
Each modularization level converter unit in bridge arm reference voltage and modular multilevel matrix converter according to each bridge arm
Capacitance voltage, control obtains the module voltage reference value of each modularization level converter unit；
By modulating the reference voltage of each modularization level converter unit in the modular multilevel matrix converter, so as to control
Make the output voltage of the simulating grid device.
4. the control method of grid stimulating device according to claim 3, it is characterised in that according to the bridge of each bridge arm
The capacitance voltage of each modularization level converter unit in arm reference voltage and modular multilevel matrix converter, control is obtained
The module voltage reference value of each modularization level converter unit, specifically includes：
It is calculated the average value of the bridge arm reference voltage of each bridge arm in the modular multilevel matrix converter；
The capacitance voltage to each modularization level converter unit in modular multilevel matrix converter carries out module capacitance respectively
Voltage balancing control, obtains the module voltage reference value of each modularization level converter unit；
Wherein, the module capacitance voltage balancing control so that each modularization level becomes in modular multilevel matrix converter
The capacitance voltage of unit is changed, equal to the capacitance voltage average value of bridge arm where each modularization level converter unit.
5. the control method of grid stimulating device according to claim 3, it is characterised in that
According to the output reference voltage of the modular multilevel matrix converter, control obtains the modular multilevel matrix
The bridge arm reference voltage of each bridge arm, specifically includes in converter：
Input side electric current to the modular multilevel matrix converter carries out input current control so that modular multilevel
The input side electric current of matrix converter is equal to input current reference value；
Outlet side electric current to the modular multilevel matrix converter carries out output current control so that modular multilevel
The outlet side electric current of matrix converter is equal to output current reference value；
Circulation to the modular multilevel matrix converter carries out circulation control so that modular multilevel matrix converter
Internal circulation is equal to circulation reference value；
Controlled by the input current, output current is controlled and circulation is controlled, and obtains the bridge arm voltage reference value of each bridge arm.
6. the control method of grid stimulating device according to claim 5, it is characterised in that the input current reference value
Acquisition include：
The first difference is calculated, wherein capacitance voltage reference value of first difference for modular multilevel matrix converter
With the difference of the capacitance voltage average value of all modularization level converter units in modular multilevel matrix converter；
Global capacitor voltage balance control is carried out to first difference, the input electricity of modular multilevel matrix converter is obtained
Stream reference value；
Wherein, the global capacitor voltage balance control so that all modularization level in modular multilevel matrix converter
The capacitance voltage average value of converter unit is equal to the capacitance voltage reference value of modular multilevel matrix converter.
7. the control method of grid stimulating device according to claim 5, it is characterised in that the output current reference value
Acquisition include：
The second difference is calculated, wherein output voltage reference value and output voltage of second difference for grid stimulating device
Difference；
Output voltage control is carried out to second difference, the output current reference of modular multilevel matrix converter is obtained
Value.
8. the control method of grid stimulating device according to claim 5, it is characterised in that the circulation reference value is obtained
Take including：
Module capacitance average voltage to modular multilevel matrix converter each bridge arm carries out bridge arm capacitor voltage balance
Control；
And the input side and outlet side electric current to the modular multilevel matrix converter carry out module capacitance voltage wave
It is dynamic to suppress control, obtain the circulation reference value of the modular multilevel matrix converter.
9. the control method of grid stimulating device according to claim 8, it is characterised in that
The bridge arm capacitor voltage balance control so that the module capacitance voltage of each bridge arm in modular multilevel matrix converter
Average value is equal to the capacitance voltage average value of all modularization level converter units in modular multilevel matrix converter.
10. the control method of grid stimulating device according to claim 8, it is characterised in that
The module capacitance voltage pulsation suppresses control so that the module capacitance voltage that modular multilevel matrix converter occurs
Fluctuation is inhibited.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111293894A (en) * | 2020-03-09 | 2020-06-16 | 南京师范大学 | Capacitor voltage balance control method for modular multilevel matrix converter |
| CN112671249A (en) * | 2020-12-30 | 2021-04-16 | 国网河北省电力有限公司沧州供电分公司 | M3C control method and terminal equipment |
| CN113572382A (en) * | 2021-07-26 | 2021-10-29 | 杭州电子科技大学 | Capacitor voltage fluctuation suppression method of modular multilevel matrix converter |
| CN113676074A (en) * | 2021-08-27 | 2021-11-19 | 中南大学 | Unified control method for m x n type modular multilevel matrix converter |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6900998B2 (en) * | 2002-05-31 | 2005-05-31 | Midwest Research Institute | Variable-speed wind power system with improved energy capture via multilevel conversion |
| JP2008054488A (en) * | 2006-07-28 | 2008-03-06 | Matsushita Electric Ind Co Ltd | Matrix converter and device having the same |
| CN102545644A (en) * | 2012-03-14 | 2012-07-04 | 山东大学 | Matrix AC (alternating current)-AC high voltage frequency converter topology structure |
| CN202488359U (en) * | 2012-03-14 | 2012-10-10 | 山东大学 | Matrix AC-AC (Alternate Current to Alternate Current) high voltage frequency converter topological structure |
| CN102983735A (en) * | 2012-12-21 | 2013-03-20 | 山东大学 | Pre-charge system and method for capacitor of modular multi-level matrix converter |
| CN105826924A (en) * | 2016-03-22 | 2016-08-03 | 中电普瑞科技有限公司 | Series-parallel combined compensator and method of restraining high voltage direct current (HVDC) commutation failure |
-
2016
- 2016-12-29 CN CN201611243301.2A patent/CN106786535B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6900998B2 (en) * | 2002-05-31 | 2005-05-31 | Midwest Research Institute | Variable-speed wind power system with improved energy capture via multilevel conversion |
| JP2008054488A (en) * | 2006-07-28 | 2008-03-06 | Matsushita Electric Ind Co Ltd | Matrix converter and device having the same |
| CN102545644A (en) * | 2012-03-14 | 2012-07-04 | 山东大学 | Matrix AC (alternating current)-AC high voltage frequency converter topology structure |
| CN202488359U (en) * | 2012-03-14 | 2012-10-10 | 山东大学 | Matrix AC-AC (Alternate Current to Alternate Current) high voltage frequency converter topological structure |
| CN102983735A (en) * | 2012-12-21 | 2013-03-20 | 山东大学 | Pre-charge system and method for capacitor of modular multi-level matrix converter |
| CN105826924A (en) * | 2016-03-22 | 2016-08-03 | 中电普瑞科技有限公司 | Series-parallel combined compensator and method of restraining high voltage direct current (HVDC) commutation failure |
Non-Patent Citations (3)
| Title |
|---|
| 刘红良等: "多电平矩阵变换器系统的数学模型", 《吉首大学学报( 自然科学版)》 * |
| 李峰: ""模块化多电平矩阵变换器关键技术研究"", 《中国博士学位论文全文数据库》 * |
| 李峰等: "模块化多电平矩阵变换器低频控制方法", 《电力系统自动化》 * |
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| CN111293894A (en) * | 2020-03-09 | 2020-06-16 | 南京师范大学 | Capacitor voltage balance control method for modular multilevel matrix converter |
| CN111293894B (en) * | 2020-03-09 | 2021-04-06 | 南京师范大学 | Capacitor voltage balance control method for modular multilevel matrix converter |
| CN112671249A (en) * | 2020-12-30 | 2021-04-16 | 国网河北省电力有限公司沧州供电分公司 | M3C control method and terminal equipment |
| CN113572382A (en) * | 2021-07-26 | 2021-10-29 | 杭州电子科技大学 | Capacitor voltage fluctuation suppression method of modular multilevel matrix converter |
| CN113572382B (en) * | 2021-07-26 | 2023-01-24 | 杭州电子科技大学 | Capacitor voltage fluctuation suppression method of modular multilevel matrix converter |
| CN113676074A (en) * | 2021-08-27 | 2021-11-19 | 中南大学 | Unified control method for m x n type modular multilevel matrix converter |
| CN113676074B (en) * | 2021-08-27 | 2023-01-31 | 中南大学 | Unified control method for m x n type modular multilevel matrix converter |
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