CN107222116B - A kind of supersparsity matrix rectifier control method and its device - Google Patents
A kind of supersparsity matrix rectifier control method and its device Download PDFInfo
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- CN107222116B CN107222116B CN201710442482.XA CN201710442482A CN107222116B CN 107222116 B CN107222116 B CN 107222116B CN 201710442482 A CN201710442482 A CN 201710442482A CN 107222116 B CN107222116 B CN 107222116B
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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
- 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
- H02M7/21—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 using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/217—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 using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M7/2173—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 using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only in a biphase or polyphase circuit arrangement
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Abstract
The invention discloses a kind of supersparsity matrix rectifier control method and its devices, including by sensor real-time detection output voltage or output electric current and poor with reference voltage or reference current work, obtain error amount e and error ratePass through sensor real-time detection grid side voltage and current and calculates reactive power parameter Q and voltage-phase shifting α；According to e andDesign the item in obtained output sliding formwork switching function comprising quadraturing to hyperbolic tangent function；Output sliding formwork control relational expression is designed using hyperbolic tangent function and then obtains index of modulation m；According to reactive power parameter and hyperbolic tangent function design power factor sliding formwork control relational expression, and then obtainUsing current space vector modulation, according to m,Pulse signal is determined with α, drives corresponding two-way switch conducting in supersparsity matrix rectifier.The present invention by using integral and hyperbolic tangent function in sliding formwork control switching function and control function optimize, can effectively inhibit sliding formwork buffet the phenomenon that.
Description
Technical field
The present invention relates to fields, more particularly to a kind of supersparsity matrix rectifier control method and its device.
Background technique
Matrix form rectifier is a kind of voltage-dropping type AC-DC electric power change from the evolution of three-phase AC-AC matrix converter
Parallel operation has many advantages, such as small in size, light-weight, energy energy two-way flow, the extensive concern by domestic and international experts and scholars.If no
It is required that power converter has energy in bidirectional flow ability, matrix form rectifier can greatly reduce switching device, then develop at this time
For supersparsity matrix rectifier.
Supersparsity matrix rectifier is as a kind of novel power converter, relative to traditional converter, Safe commutation
It is tactful simple, and since less power switching device makes system loss small, with good application prospect.
When being rectified using supersparsity matrix rectifier as power converter, to improve dynamic property, cunning can be used
Mould control strategy controls the DC output voltage and compensation net side power factor of supersparsity matrix rectifier.However due to tradition
Sliding formwork control function used in be sign function sgn so that switching item can only mutually cut between a minimum value and a maximum value
It changes, switching is excessive to be caused to buffet in sliding formwork control acutely, serious to reduce input-output wave shape quality.
Therefore, how to provide a kind of good supersparsity matrix rectifier control method and its device of buffeting inhibitory effect is this
The current problem to be solved of field technical staff.
Summary of the invention
The object of the present invention is to provide a kind of supersparsity matrix rectifier control method and its device, by using integral and
Hyperbolic tangent function in sliding formwork control switching function and control function optimize, can effectively inhibit sliding formwork buffeting
Phenomenon.
In order to solve the above technical problems, the present invention provides a kind of supersparsity matrix rectifier control methods, comprising:
Pass through sensor real-time detection grid side voltage and current and the output voltage of the supersparsity matrix rectifier
Or output electric current；
It enables the output voltage or output electric current and reference voltage or reference current make difference processing, obtains error amount e and mistake
Poor change rate
According to the error amount e and the error rateDesign obtains output sliding formwork switching function:
Wherein, sliding formwork coefficient c1、c2Value range is respectively c11/ (2C of >o), c21/ (L of <oCo)；CoAnd LoIt is respectively defeated
Filter capacity and inductance parameters out；
Output sliding formwork control relational expression is designed using hyperbolic tangent function, is calculated according to the output sliding formwork control relational expression
Obtain index of modulation m, the output sliding formwork control relational expression are as follows:
M=mref+tanh(S1)σ；Export sliding formwork control equivalent itemVimFor voltage on line side amplitude；σ is to slide
Mould control switching item；
Reactive power parameter q is calculated according to the grid side voltage and current and voltage-phase moves α；
Power factor sliding formwork handoff relation formula is obtained according to the reactive power parameter designing:
For reactive power parameter change rate, c3Be positive sliding formwork coefficient；
Using hyperbolic tangent function design power factor sliding formwork control relational expression, closed according to the power factor sliding formwork control
It is that offset angle is calculated in formulaThe power factor sliding formwork control relational expression are as follows:
δ is offset angle anti-interference amount；Power sliding formwork control equivalent item
ωiFor voltage on line side frequency；RLTo load resistance value；CiInput filter capacitance parameter；
Using current space vector modulation, according to the index of modulation m, the offset angleIt is moved with the voltage-phase
α determines the action time of the corresponding vector of various switch combinations, obtains pulse signal according to the action time, drives described super
Corresponding two-way switch conducting in sparse matrix rectifier.
Preferably, the reactive power parameter is specially instantaneous reactive power Q；According to the grid side voltage and current meter
Calculate the process of the instantaneous reactive power Q are as follows:
Park Transformation is carried out to the grid side voltage and current, obtains the instantaneous reactive power Q；Q=usqisd-
usdisq。
In order to solve the above technical problems, the present invention also provides a kind of supersparsity matrix rectifier control devices, comprising:
Detection module, for being rectified by sensor real-time detection grid side voltage and current and the supersparsity matrix
The output voltage or output electric current of device；
Error calculating module, for enabling the output voltage or output electric current and reference voltage or reference current make at difference
Reason, obtains error amount e and error rate
Index of modulation computing module, for according to the error amount e and the error rateDesign obtains output sliding formwork
Switching function:Wherein, sliding formwork coefficient c1、c2Value range is respectively c11/ (2C of >o), c2
1/ (L of <oCo)；CoAnd LoRespectively output filter capacitor and inductance parameters；Output sliding formwork control is designed using hyperbolic tangent function
Index of modulation m, the output sliding formwork control relational expression is calculated according to the output sliding formwork control relational expression in relational expression processed
Are as follows: m=mref+tanh(S1)σ；Export sliding formwork control equivalent itemVimFor voltage on line side amplitude；σ is sliding formwork control
System switching item；
Idle computing module, for calculating reactive power parameter q and voltage-phase according to the grid side voltage and current
Move α；
Angle computing module is compensated, for obtaining power factor sliding formwork handoff relation according to the reactive power parameter designing
Formula: For reactive power parameter change rate, c3Be positive sliding formwork coefficient；Using hyperbolic tangent function design power
Offset angle is calculated according to the power factor sliding formwork control relational expression in factor sliding formwork control relational expressionThe power
Factor sliding formwork control relational expression are as follows:δ is offset angle anti-interference amount；Power sliding formwork control equivalent itemωiFor voltage on line side frequency；RLTo load resistance value；CiInput filter capacitance parameter；
Space vector modulation module, for using current space vector modulation, according to the index of modulation m, the compensation
AngleThe action time that α determines the corresponding vector of various switch combinations is moved with the voltage-phase, according to the action time
Pulse signal is obtained, corresponding two-way switch conducting in the supersparsity matrix rectifier is driven.
Preferably, the reactive power parameter is specially instantaneous reactive power Q；The idle computing module specifically includes:
Reactive power calculates unit, for carrying out Park Transformation to the grid side voltage and current, obtains described instantaneous
Reactive power Q；Q=usqisd-usdisq；
Phase shift computing unit becomes for carrying out Clarke transform to the grid side voltage and current according to Clarke
Voltage u after changingsα、usβWith electric current isα、isβCalculate the sine and cosine value of voltage and current:
Backstepping obtains
The present invention provides a kind of supersparsity matrix rectifier control method and its devices, in input sliding formwork switching function
It joined the item quadratured to hyperbolic tangent function, and using nonlinear hyperbolic tangent function to the cunning of traditional sliding formwork control
Mould control function optimizes.It is understood that opposite Traditional control steady-state performance is more preferable, tool using integral sliding mode control
There is good steady-state error, and hyperbolic tangent function is a kind of with the non-linear of " small error amplification, big error saturation " feature
Function, when big initial error either controls input-bound, hyperbolic tangent function is cut as a kind of continuous function in sliding formwork
Replace linear function that can effectively inhibit the phenomenon that sliding formwork buffets appearance in exchange the letters number, the effect for buffeting inhibition is good.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to institute in the prior art and embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram of supersparsity matrix rectifier；
Fig. 2 is a kind of flow chart of the process of supersparsity matrix rectifier control method provided by the invention；
Fig. 3 is that a kind of sector provided by the invention divides schematic diagram；
Fig. 4 is a kind of supersparsity matrix rectifier control block diagram provided by the invention；
Fig. 5 is a kind of structural schematic diagram of supersparsity matrix rectifier control device provided by the invention.
Specific embodiment
Core of the invention is to provide a kind of supersparsity matrix rectifier control method and its device, by using integral and
Hyperbolic tangent function in sliding formwork control switching function and control function optimize, can effectively inhibit sliding formwork buffeting
Phenomenon.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
The present invention provides a kind of supersparsity matrix rectifier control methods, and referring to figure 1 and figure 2, Fig. 1 is supersparsity
The structural schematic diagram of matrix rectifier；Fig. 2 is a kind of process of supersparsity matrix rectifier control method provided by the invention
Flow chart；This method comprises:
Step s1: pass through the output electricity of sensor real-time detection grid side voltage and current and supersparsity matrix rectifier
Pressure or output electric current；
Step s2: enabling output voltage or output electric current and reference voltage or reference current make difference processing, obtain error amount e and
Error rate
Step s3: according to error amount e and error rateDesign obtains output sliding formwork switching function:
Wherein, sliding formwork coefficient c1、c2Value range is respectively c11/ (2C of >o), c21/ (L of <oCo)；CoAnd LoIt is respectively defeated
Filter capacity and inductance parameters out；
It is understood that, relative to traditional sliding formwork switching function, controlling the performance of stable state by increasing integral term
More preferably, there is good steady-state error.
Step s4: using hyperbolic tangent function design output sliding formwork control relational expression, according to output sliding formwork control relational expression
Index of modulation m is calculated, exports sliding formwork control relational expression are as follows:
M=mref+tanh(S1)σ；Export sliding formwork control equivalent itemVimFor voltage on line side amplitude；σ is to slide
Mould control switching item；σ∈[0.05,0.1]
Step s5: reactive power parameter q is calculated according to grid side voltage and current and voltage-phase moves α；
Step s6: power factor sliding formwork handoff relation formula is obtained according to reactive power parameter designing:
For reactive power parameter change rate, c3Be positive sliding formwork coefficient；
Step s7: using hyperbolic tangent function design power factor sliding formwork control relational expression, according to the control of power factor sliding formwork
Offset angle is calculated in relational expression processedPower factor sliding formwork control relational expression are as follows:
δ is offset angle anti-interference amount；Power sliding formwork control equivalent item
ωiFor voltage on line side frequency；RLTo load resistance value；CiInput filter capacitance parameter；
Step s8: using current space vector modulation, according to index of modulation m, offset angleα is moved with voltage-phase to determine
The action time of the corresponding vector of various switch combinations obtains pulse signal, driving supersparsity matrix rectification according to action time
Corresponding two-way switch conducting in device.
It is understood that hyperbolic tangent function is a kind of with the non-thread of " small error amplification, big error saturation " feature
Property function, big initial error either control input-bound when, in sliding formwork switching function use hyperbolic tangent function generation
It can effectively inhibit to integrate saturation effect for linear function.
It should be noted that step s2- step s4 and step s5- step s7 is two branches arranged side by side, this two parts does not have
It there is sequencing, can carries out simultaneously.
In addition, the main circuit of the supersparsity matrix rectifier in the present invention includes 3 IGBT and 12 diodes, square is compared
Battle array 12 IGBT and 12 diodes of rectifier, number of switches greatly reduce, and system loss is few.
In a specific embodiment, reactive power parameter is specially instantaneous reactive power Q；In step s5, according to power grid
The process of side voltage and current calculating instantaneous reactive power Q are as follows:
Step s501: Park Transformation is carried out to grid side voltage and current, obtains instantaneous reactive power Q；Q=usqisd-
usdisq。
Calculate the process that voltage-phase moves α specifically:
Step s502: Clarke transform is carried out to grid side voltage and current, according to the voltage u after Clarke transformsα、
usβWith electric current isα、isβCalculate the sine and cosine value of voltage and current；
Arcsine transformation is carried out later, is obtained
Wherein, the process in step s8 specifically:
To input phase voltage zero crossing sectorization.Sector is distributed as shown in figure 3, target vector IrefBy in the sector two
A adjacent one zero vector of effective vector sum synthesis.Ginseng is shown in Table 1, and table 1 is that the switch conduction of supersparsity matrix rectifier is advised
Restrain table, by taking the first sector as an example, switch SaIt is normally closed, switch SbEffective vector is corresponded to when closureSwitch ScIt is corresponding with when closure
Imitate vectorSaZero vector is corresponded to when closureTarget vector is respectively by effective vectorAnd zero vectorSynthesis.
Then its corresponding three switch Sa、SbAnd ScIn a cycle TsInterior turn-on time can calculate are as follows:
TSa=Ts
TSb=mdα=mTssin(60°-θ)
TSc=mdβ=mTssinθ
Wherein, dαAnd dβFor two effective vectorsDuty ratio, and θ=mod [(α-φi,60°)]。
According to the duty ratio, the action time of the corresponding vector of various switch combinations is determined, obtain arteries and veins according to action time
Signal is rushed, corresponding two-way switch conducting in supersparsity matrix rectifier is driven.
The switch conduction rule table of 1 supersparsity matrix rectifier of table
Shown in Figure 4, Fig. 4 is a kind of supersparsity matrix rectifier control block diagram provided by the invention；Wherein, IPF is mended
It repays and refers to that net side input power factor compensates, abc/dq is Park Transformation.Input detecting circuit is used to obtain by sensor
Grid side voltage and current, output detection circuit are used to obtain the output voltage or defeated of supersparsity matrix rectifier by sensor
Electric current out.
The present invention provides a kind of supersparsity matrix rectifier control method, joined in input sliding formwork switching function pair
The item that hyperbolic tangent function is quadratured, and using nonlinear hyperbolic tangent function to the sliding formwork control letter of traditional sliding formwork control
Number optimizes.It is understood that opposite Traditional control steady-state performance is more preferable using integral sliding mode control, have good
Steady-state error, and hyperbolic tangent function is a kind of nonlinear function with " small error amplification, big error saturation " feature, big
Initial error either control input-bound when, a kind of hyperbolic tangent function generation in sliding formwork switching function as continuous function
It can effectively inhibit the phenomenon that sliding formwork buffets appearance for linear function, the effect for buffeting inhibition is good.
The present invention also provides a kind of supersparsity matrix rectifier control devices, and shown in Figure 5, Fig. 5 mentions for the present invention
A kind of structural schematic diagram of the supersparsity matrix rectifier control device supplied.The device includes:
Detection module 1, for passing through sensor real-time detection grid side voltage and current and supersparsity matrix rectifier
Output voltage or output electric current；
Error calculating module 2 is obtained for enabling output voltage or output electric current and reference voltage or reference current make difference processing
To error amount e and error rate
Index of modulation computing module 3, for according to error amount e and error rateDesign obtains output sliding formwork switching letter
Number:Wherein, sliding formwork coefficient c1、c2Value range is respectively c11/ (2C of >o), c2< 1/
(LoCo)；CoAnd LoRespectively output filter capacitor and inductance parameters；Output sliding formwork control is designed using hyperbolic tangent function to close
It is formula, index of modulation m is calculated according to output sliding formwork control relational expression, exports sliding formwork control relational expression are as follows: m=mref+tanh
(S1)σ；Export sliding formwork control equivalent itemVimFor voltage on line side amplitude；σ is that sliding formwork control switches item；
Idle computing module 4, for calculating reactive power parameter q and voltage-phase shifting α according to grid side voltage and current；
Angle computing module 5 is compensated, for obtaining power factor sliding formwork handoff relation formula according to reactive power parameter designing: For reactive power parameter change rate, c3Be positive sliding formwork coefficient；Using hyperbolic tangent function design power factor
Offset angle is calculated according to power factor sliding formwork control relational expression in sliding formwork control relational expressionPower factor sliding formwork control is closed
It is formula are as follows:δ is offset angle anti-interference amount；Power sliding formwork control equivalent itemωi
For voltage on line side frequency；RLTo load resistance value；CiInput filter capacitance parameter；
Space vector modulation module 6, for using current space vector modulation, according to index of modulation m, offset angleWith
Voltage-phase moves the action time that α determines the corresponding vector of various switch combinations, obtains pulse signal according to action time, drives
Corresponding two-way switch conducting in supersparsity matrix rectifier.
In a specific embodiment, reactive power parameter is specially instantaneous reactive power Q；Idle computing module 4 is specific
Include:
Reactive power calculates unit, for carrying out Park Transformation to grid side voltage and current, obtains instantaneous reactive power
Q；Q=usqisd-usdisq；
Phase shift computing unit, for carrying out Clarke transform to grid side voltage and current, according to after Clarke transform
Voltage usα、usβWith electric current isα、isβCalculate the sine and cosine value of voltage and current:
Backstepping obtains
The present invention provides a kind of supersparsity matrix rectifier control device, joined in input sliding formwork switching function pair
The item that hyperbolic tangent function is quadratured, and using nonlinear hyperbolic tangent function to the sliding formwork control letter of traditional sliding formwork control
Number optimizes.It is understood that opposite Traditional control steady-state performance is more preferable using integral sliding mode control, have good
Steady-state error, and hyperbolic tangent function is a kind of nonlinear function with " small error amplification, big error saturation " feature, big
Initial error either control input-bound when, a kind of hyperbolic tangent function generation in sliding formwork switching function as continuous function
It can effectively inhibit the phenomenon that sliding formwork buffets appearance for linear function, the effect for buffeting inhibition is good.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is said referring to method part
It is bright.
It should also be noted that, in the present specification, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or apparatus that includes the element.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (4)
1. a kind of supersparsity matrix rectifier control method characterized by comprising
By the output voltage of sensor real-time detection grid side voltage and current and the supersparsity matrix rectifier or defeated
Electric current out；
It enables the output voltage or output electric current and reference voltage or reference current make difference processing, obtains error amount e and error becomes
Rate
According to the error amount e and the error rateDesign obtains output sliding formwork switching function:
Wherein, sliding formwork coefficient c1、c2Value range is respectively c1>1/(2Co), c2<1/(LoCo)；CoAnd LoRespectively output filtering
Device capacitor and inductance parameters；
Output sliding formwork control relational expression is designed using hyperbolic tangent function, is calculated according to the output sliding formwork control relational expression
Index of modulation m, the output sliding formwork control relational expression are as follows:
M=mref+tanh(S1)σ；Export sliding formwork control equivalent itemVimFor voltage on line side amplitude；σ is sliding formwork control
System switching item；VrefFor reference voltage；
Reactive power parameter q is calculated according to the grid side voltage and current and voltage-phase moves α；The reactive power parameter q
Specially instantaneous reactive power Q；
Power factor sliding formwork handoff relation formula is obtained according to the reactive power parameter designing:
For reactive power parameter change rate, c3Be positive sliding formwork coefficient；
Using hyperbolic tangent function design power factor sliding formwork control relational expression, according to the power factor sliding formwork control relational expression
Offset angle is calculatedThe power factor sliding formwork control relational expression are as follows:
δ is offset angle anti-interference amount；Power sliding formwork control equivalent itemωiFor
Voltage on line side frequency；RLTo load resistance value；CiInput filter capacitance parameter；
Using current space vector modulation, according to the index of modulation m, the offset angleα is moved with the voltage-phase to determine
The action time of the corresponding vector of various switch combinations, pulse signal is obtained according to the action time, drives the supersparsity
Corresponding IGBT conducting in matrix rectifier.
2. the method according to claim 1, wherein the reactive power parameter is specially instantaneous reactive power Q；
The process of the instantaneous reactive power Q is calculated according to the grid side voltage and current are as follows:
Park Transformation is carried out to the grid side voltage and current, obtains the instantaneous reactive power Q；Q=usqisd-usdisq。
3. a kind of supersparsity matrix rectifier control device characterized by comprising
Detection module, for passing through sensor real-time detection grid side voltage and current and the supersparsity matrix rectifier
Output voltage or output electric current；
Error calculating module is obtained for enabling the output voltage or output electric current and reference voltage or reference current make difference processing
To error amount e and error rate
Index of modulation computing module, for according to the error amount e and the error rateDesign obtains output sliding formwork switching
Function:Wherein, sliding formwork coefficient c1、c2Value range is respectively c1>1/(2Co), c2<1/
(LoCo)；CoAnd LoRespectively output filter capacitor and inductance parameters；Output sliding formwork control is designed using hyperbolic tangent function to close
It is formula, index of modulation m, the output sliding formwork control relational expression are as follows: m=is calculated according to the output sliding formwork control relational expression
mref+tanh(S1)σ；Export sliding formwork control equivalent itemVimFor voltage on line side amplitude；σ is sliding formwork control switching
?；VrefFor reference voltage；
Idle computing module, for calculating reactive power parameter q and voltage-phase shifting α according to the grid side voltage and current；
The reactive power parameter q is specially instantaneous reactive power Q；
Angle computing module is compensated, for obtaining power factor sliding formwork handoff relation formula according to the reactive power parameter designing: For reactive power parameter change rate, c3Be positive sliding formwork coefficient；Using hyperbolic tangent function design power because
Number sliding formwork control relational expression, is calculated offset angle according to the power factor sliding formwork control relational expressionThe power because
Number sliding formwork control relational expression are as follows:δ is offset angle anti-interference amount；Power sliding formwork control equivalent itemωiFor voltage on line side frequency；RLTo load resistance value；CiInput filter capacitance parameter；
Space vector modulation module, for using current space vector modulation, according to the index of modulation m, the offset angle
The action time that α determines the corresponding vector of various switch combinations is moved with the voltage-phase, obtains arteries and veins according to the action time
Signal is rushed, corresponding IGBT conducting in the supersparsity matrix rectifier is driven.
4. device according to claim 3, which is characterized in that the reactive power parameter is specially instantaneous reactive power Q；
The idle computing module specifically includes:
Reactive power calculates unit, for carrying out Park Transformation to the grid side voltage and current, obtains the instantaneous reactive
Power Q；Q=usqisd-usdisq；
Phase shift computing unit, for carrying out Clarke transform to the grid side voltage and current, according to after Clarke transform
Voltage usα、usβWith electric current isα、isβCalculate the sine and cosine value of voltage and current:
Backstepping obtains
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| CN104218788A (en) * | 2014-09-18 | 2014-12-17 | 广东省自动化研究所 | Network side power factor sliding-mode self-adaptive control method of matrix rectifier |
| CN104506054A (en) * | 2014-12-31 | 2015-04-08 | 广东省自动化研究所 | Approach law sliding mode control method of matrix rectifier |
| CN105827124A (en) * | 2016-05-05 | 2016-08-03 | 广东省自动化研究所 | Matrix rectifier control method |
| CN106100396A (en) * | 2016-08-10 | 2016-11-09 | 广东工业大学 | The control method of a kind of matrix rectifier and system |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104218788A (en) * | 2014-09-18 | 2014-12-17 | 广东省自动化研究所 | Network side power factor sliding-mode self-adaptive control method of matrix rectifier |
| CN104506054A (en) * | 2014-12-31 | 2015-04-08 | 广东省自动化研究所 | Approach law sliding mode control method of matrix rectifier |
| CN105827124A (en) * | 2016-05-05 | 2016-08-03 | 广东省自动化研究所 | Matrix rectifier control method |
| CN106100396A (en) * | 2016-08-10 | 2016-11-09 | 广东工业大学 | The control method of a kind of matrix rectifier and system |
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