CN107342687A - A kind of two-way Buck Boosts circuit and its control method - Google Patents

A kind of two-way Buck Boosts circuit and its control method Download PDF

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Publication number
CN107342687A
CN107342687A CN201710700720.2A CN201710700720A CN107342687A CN 107342687 A CN107342687 A CN 107342687A CN 201710700720 A CN201710700720 A CN 201710700720A CN 107342687 A CN107342687 A CN 107342687A
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signal
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CN107342687B (en
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廖志贤
潘海锋
陈亚欢
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Shenzhen Huayuan Technology Industry Co ltd
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SHENZHEN PARWA TECHNOLOGY Co Ltd
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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
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac 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
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac 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
    • H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac 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 with automatic control of output voltage or current, e.g. switching regulators
    • H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac 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 with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
    • H02M3/1582—Buck-boost converters
    • 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
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac 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
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac 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
    • H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac 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 with automatic control of output voltage or current, e.g. switching regulators
    • H02M3/157—Conversion of dc power input into dc power output without intermediate conversion into ac 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 with automatic control of output voltage or current, e.g. switching regulators with digital control
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

Abstract

The invention discloses a kind of two-way Buck Boosts circuit,Including 10 power switch pipe QBo1~QBo5,The power main circuit that QBu1~QBu5 is formed,Each power switch pipe has built-in power diode,It mutually should be DBo1~DBo5,DBu1~DBu5,Whole power circuit includes a power inductance LB,4 electric capacity CBT,Co1~Co3 and numerical control system,Numerical control system includes pwm signal Isolation Amplifier Module,It is synchronous to stack control algolithm module,MIMO filtration modules,Output control signal sQBo1~sQBo5 of numerical control system,SQBu1~sQBu5 is connected respectively to QBo1~QBo5 by controlling bus,The control terminal of QBu1~QBu5 totally 10 power switch pipes.Control method of the present invention, due to stacking control technology and circuit structure using synchronous, high-pressure side capacitance voltage stress is greatly reduced, improves the service life of electric capacity.

Description

A kind of two-way One Buck-Boost converter body circuit and its control method
Technical field
The present invention relates to a kind of converter circuit, specifically a kind of two-way One Buck-Boost converter body circuit and its controlling party Method.
Background technology
With the rapid development of electric automobile correlation technique, corresponding energy conversion is with memory technology also continuous Development, wherein, utilization rate of the reversible transducer technology due to the energy can be improved to greatest extent, in electrokinetic cell grading system, parameter It is widely used in the test such as matching.Electric automobile refers to that, using vehicle power as power, Development of EV must solve The key technology of 4 aspects：Battery technology, motor driving and its control technology, electric automobile whole technology and energy pipe Reason technology.Wherein, high efficiency energy recovery and memory technology are one of its key technologies, and reversible transducer is even more its most important thing.
And existing two-way One Buck-Boost converter body technology and product systems voltage stress are big, power tube heating loss is high, The problem of system reliability difference, therefore, new two-way One Buck-Boost converter body circuit and its control method research and development are electronic The very urgent problem of auto industry circle.Two-way DC converter can realize DC voltage conversion and the two-way flow of energy, Two-way Buck-Boost is simplest one kind of topological structure in two-way DC converter, and it, which has, uses power electronic devices Less, the advantages that driving is simple, energy conversion efficiency is high.
The content of the invention
It is an object of the invention to provide a kind of two-way One Buck-Boost converter body circuit and its control method, with solution State the problem of being proposed in background technology.
To achieve the above object, the present invention provides following technical scheme：
A kind of two-way One Buck-Boost converter body circuit, including 10 power switch pipe QBo1~QBo5, QBu1~QBu5 The power main circuit of composition, each power switch pipe have built-in power diode, mutually should be DBo1~DBo5, DBu1~ DBu5, whole power circuit include a power inductance LB, 4 electric capacity CBT, Co1~Co3 and numerical control system, numeral Control system includes pwm signal Isolation Amplifier Module, synchronous stacking control algolithm module, MIMO filtration modules, digital control system Output control signal sQBo1~sQBo5, the sQBu1~sQBu5 of system by controlling bus be connected respectively to QBo1~QBo5, The control terminal of QBu1~QBu5 totally 10 power switch pipes, electric capacity CBT terminal voltage signals UCBT are electrically connected to numerical control system First input end, inductance LB current signal ILB are electrically connected to the input of numerical control system second, electric capacity Co1~Co3 ends electricity Pressure signal is electrically connected respectively to the 3rd input of numerical control system, inputs corresponding voltage letter respectively to numerical control system Number UCo1, UCo2 and UCo3, high voltage side current IDC is electrically connected to the input of numerical control system the 4th, in numerical control system Inside, electric capacity CBT terminal voltage signals UCBT, inductance LB current signal ILB, electric capacity Co1~Co3 terminal voltage signals UCo1, Totally 6 signals are electrically connected to the inputs of MIMO filtration modules, MIMO filtering moulds to UCo2 and UCo3 and high voltage side current IDC Filtered above-mentioned 6 signal outputs are connected to the synchronous input for stacking control algolithm module after block processing, it is synchronous to stack The output of control algolithm module is connected to the input of pwm signal Isolation Amplifier Module, the control of pwm signal Isolation Amplifier Module Signal output is connected to controlling bus.
As further scheme of the invention：The control method of described two-way One Buck-Boost converter body circuit, bag Include following steps：Step 1：6 signal datas of collection are filtered by MIMO filtration modules, and filtering framework is that how defeated multi input is Go out, i.e. 6 tunnels input the output of 6 tunnels, and its filtering is as follows:
Signal is configured to data signal matrix first, the window width for setting data signal is n, order
UCBT=X*1, ILB=X*2, UCo1=X*3, UCo2=X*4, UCo3=X*5, IDC=X*6, wherein " * " number represents numeral letter Number subscript coefficient, obtain
Then the average of 6 road signal Zhong Mei roads signals is calculated, is obtained
Then the variance of 6 road signal Zhong Mei roads signals is calculated
Moreover the covariance in 6 road signals between every two paths of signals is calculated, obtain
Using sjkValue rejecting outliers and renewal are carried out to data sequence, a threshold value is set, it is i.e. available after renewal The 6 signal datas output filtered, realizes that MIMO is filtered；
Step 2：By filtered 6 signal datas obtained by step 1, synchronous stacking control algolithm module is sent into, together Step is stacked in control algolithm, and all power switch pipes are synchronized with control, produces synchronous stacking control logic, its method be by Whole control process is divided into positive synchronous stacking process and reverse sync stacking process；
Step 3：Control algolithm flow is stacked by synchronous, synchronous stacking process and reverse sync stacking process are held successively OK, you can obtain a controlling cycle, it is synchronous stack control algolithm module caused by control information, be input to pwm signal every From the control terminal for being directly connected to each power switch pipe after amplification module progress power amplification through controlling bus, whole electricity is realized The control on road；
Step 4：Repeat step 1~step 3.
Compared with prior art, the beneficial effects of the invention are as follows：Control method of the present invention, due to being controlled using synchronous stack Technology and circuit structure, high-pressure side capacitance voltage stress is greatly reduced, improve the service life of electric capacity；The circuit structure of the present invention And control method, in the absence of the diode of works in isolation, each diode is the diode-built-in that metal-oxide-semiconductor carries, actual to make With simply being protected to circuit, main big current loop is transmitted independent of diode, is eliminated caused by diode drop Switching noise and power attenuation, improve system capacity organic efficiency；Using synchronous stacked structure, reduce the voltage ripple of system, Reduce switching noise Conduction Interference, be advantageous to improve measurement accuracy；All device for power switching voltage stress are much smaller than high-pressure side Voltage, system have higher stability and reliability.
Brief description of the drawings
Fig. 1 is the structural representation of two-way One Buck-Boost converter body circuit.
Fig. 2 is the positive synchronous stacking process schematic diagram of the present invention.
Fig. 3 is reverse sync stacking process schematic diagram of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made Embodiment, belong to the scope of protection of the invention.
Referring to Fig. 1, in the embodiment of the present invention, a kind of two-way One Buck-Boost converter body circuit, including 10 power are opened The power main circuit that pipe QBo1~QBo5, QBu1~QBu5 are formed is closed, each power switch pipe has built-in power diode, Mutually should be DBo1~DBo5, DBu1~DBu5, whole power circuit include a power inductance LB, 4 electric capacity CBT, Co1~ Co3 and numerical control system, numerical control system includes pwm signal Isolation Amplifier Module, synchronization stacks control algolithm module, MIMO filtration modules, output control signal sQBo1~sQBo5, the sQBu1~sQBu5 of numerical control system pass through controlling bus It is connected respectively to the control terminal of QBo1~QBo5, QBu1~QBu5 totally 10 power switch pipes, electric capacity CBT terminal voltage signals UCBT It is electrically connected to numerical control system first input end, it is defeated that inductance LB current signal ILB is electrically connected to numerical control system second Enter end, electric capacity Co1~Co3 terminal voltage signals are electrically connected respectively to the 3rd input of numerical control system, to digital control system Voltage signal UCo1, UCo2 and UCo3, high voltage side current IDC are electrically connected to numerical control system the 4th to system corresponding to input respectively Input, inside numerical control system, electric capacity CBT terminal voltage signals UCBT, inductance LB current signal ILB, electric capacity Co1~ Totally 6 signals are electrically connected to MIMO filtration modules to Co3 terminal voltage signals UCo1, UCo2 and UCo3 and high voltage side current IDC Input, filtered above-mentioned 6 signal outputs are connected to synchronous stacking control algolithm module after the processing of MIMO filtration modules Input, the synchronous output for stacking control algolithm module is connected to the input of pwm signal Isolation Amplifier Module, pwm signal The control signal output of Isolation Amplifier Module is connected to controlling bus.
The special LMDS Light Coupled Device of the preferred power drive of pwm signal Isolation Amplifier Module, synchronous stacking control algolithm module, MIMO filtration modules are arranged in the program inside embeded processor, embeded processor can be selected DSP Processor, FPGA or Person's arm processor.
The control method of described two-way One Buck-Boost converter body circuit, comprises the following steps：Step 1：MIMO is filtered 6 signal datas of collection are filtered by module, and filtering framework is multiple-input and multiple-output, i.e. 6 tunnels input the output of 6 tunnels, and it is filtered Wave process is as follows:
Signal is configured to data signal matrix first, the window width for setting data signal is n, makes UCBT=X*1, ILB =X*2, UCo1=X*3, UCo2=X*4, UCo3=X*5, IDC=X*6, wherein " * " number represents the subscript coefficient of data signal, obtain
Then the average of 6 road signal Zhong Mei roads signals is calculated, is obtained
Then the variance of 6 road signal Zhong Mei roads signals is calculated
Moreover the covariance in 6 road signals between every two paths of signals is calculated, obtain
Using sjkValue rejecting outliers and renewal are carried out to data sequence, a threshold value is set, and its method is following public Formula
It can be obtained after renewal To the 6 signal datas output filtered, realize that MIMO is filtered；
Step 2：By filtered 6 signal datas obtained by step 1, synchronous stacking control algolithm module is sent into, together Step is stacked in control algolithm, and all power switch pipes are synchronized with control, produces synchronous stacking control logic, its method be by Whole control process is divided into positive synchronous stacking process and reverse sync stacking process；
Step 3：Control algolithm flow is stacked by synchronous, synchronous stacking process and reverse sync stacking process are held successively OK, you can obtain a controlling cycle, it is synchronous stack control algolithm module caused by control information, be input to pwm signal every From the control terminal for being directly connected to each power switch pipe after amplification module progress power amplification through controlling bus, whole electricity is realized The control on road；
Step 4：Repeat step 1~step 3.
For control method, MIMO filtration module specific embodiments are as follows：
In one embodiment, signal is configured to data signal matrix first, the window width for setting data signal is 64, make UCBT=, ILB=, UCo1=, UCo2=, UCo3=, IDC=, wherein " * " number represents the subscript coefficient of data signal, obtain
Then the average of 6 road signal Zhong Mei roads signals is calculated, is obtained
Then the variance of 6 road signal Zhong Mei roads signals is calculated
Moreover the covariance in 6 road signals between every two paths of signals is calculated, obtain
Due to two-way One Buck-Boost converter body circuit system under same physical condition it is (identical power supply, identical The basically identical working environment such as control system), under stable state, there is strong correlation between multiple signals, and when receiving outside During very noisy interference effect, irrelevant feature just occurs, therefore use sjkValue to data sequence carry out rejecting outliers with more Newly, threshold value=0.5 is set, then its update method is equation below
The 6 signal datas output filtered after renewal, realizes that MIMO is filtered.
For control method, synchronous stacking control algolithm specific embodiment is as follows：
(1) arranged in order in positive synchronous stacking process, its course of work, its performance loop state drawn such as Fig. 2, Performance loop is represented using thick lines in figure, hachure represents not performance loop, similarly hereinafter.
Fig. 2 (a) specific performance loop is in the present embodiment：UBT->LB->QBu1(DBu1)->QBu2(DBu2)-> QBu4->Co2->Co1->UBT and CBT->QBo1->QBo4(DBo4)->Co2->Co1->CBT and Co1->Co2->Co3, totally 3 Individual loop is activated.
Fig. 2 (b) specific performance loop is：UBT->LB->QBu1(DBu1)->QBu5->Co1->UBT and CBT-> LB->QBo1->QBo2->QBo5(DBo5)->Co1->CBT and Co1->Co2->Co3, totally 3 loops be activated.
Fig. 2 (c) specific workflow is：UBT->LB->QBo1->QBo2->QBo3->Co1->Co2->Co3 and UBT->CBT->UBT, totally 2 loops be activated.
(2) in reverse sync stacking process, Fig. 3 is seen.
Fig. 3 (a) specific workflow is in the present embodiment：UBT->LB->QBu1(DBu1)->QBu5->Co1-> UBT and CBT->LB->QBo1->QBo2->QBo5(DBo5)->Co1->CBT and Co1->Co2->Co3, totally 3 loops swashed It is living,
Fig. 3 (b) specific workflow is：UBT->LB->QBu1(DBu1)->QBu2(DBu2)->QBu4->Co2-> Co1->UBT and CBT->LB->QBo1->QBo4(DBo4)->Co2->Co1->CBT and Co1->Co2->Co3, totally 3 loop quilts Activation,
Fig. 3 (c) specific workflow is：UBT->LB->QBu1(DBu1)->QBu2(DBu2)->QBu3(DBu3)- >Co3->Co2->Co1->UBT and UBT->CBT->UBT, totally 2 loops be activated.
Above-mentioned forward direction is synchronous to be stacked and reverse sync stacks two processes and sequentially repeated, when by:Fig. 2 (a)-> Fig. 2 (b)->Fig. 2 (c)->Fig. 3 (a)->Fig. 3 (b)->Fig. 3 (c)->Fig. 2 (a) circulation perform, then energy transmission direction from a left side to It is right；When by:Fig. 3 (c)->Fig. 3 (b)->Fig. 3 (a)->Fig. 2 (c)->Fig. 2 (b)->Fig. 2 (a)->Fig. 3 (c) circulations perform, then energy Transmission direction from left to right, realizes the two-way changing of energy.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling Change is included in the present invention.Any reference in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art It is appreciated that other embodiment.

Claims (2)

  1. A kind of 1. two-way One Buck-Boost converter body circuit, it is characterised in that including 10 power switch pipe QBo1~QBo5, The power main circuit that QBu1~QBu5 is formed, each power switch pipe has built-in power diode, mutually should be DBo1~ DBo5, DBu1~DBu5, whole power circuit include a power inductance LB, 4 electric capacity CBT, Co1~Co3 and numeral control System processed, numerical control system include pwm signal Isolation Amplifier Module, synchronous stacking control algolithm module, MIMO filtration modules, Output control signal sQBo1~sQBo5, the sQBu1~sQBu5 of numerical control system are connected respectively to QBo1 by controlling bus The control terminal of~QBo5, QBu1~QBu5 totally 10 power switch pipes, electric capacity CBT terminal voltage signals UCBT are electrically connected to digital control System first input end processed, inductance LB current signal ILB are electrically connected to the input of numerical control system second, and electric capacity Co1~ Co3 terminal voltage signals are electrically connected respectively to the 3rd input of numerical control system, are inputted respectively to numerical control system correspondingly Voltage signal UCo1, UCo2 and UCo3, high voltage side current IDC is electrically connected to the input of numerical control system the 4th, in numeral Inside control system, electric capacity CBT terminal voltage signals UCBT, inductance LB current signal ILB, electric capacity Co1~Co3 terminal voltage signals Totally 6 signals are electrically connected to the inputs of MIMO filtration modules, MIMO filters by UCo1, UCo2 and UCo3 and high voltage side current IDC Filtered above-mentioned 6 signal outputs are connected to the synchronous input for stacking control algolithm module after ripple resume module, it is synchronous The output for stacking control algolithm module is connected to the input of pwm signal Isolation Amplifier Module, pwm signal Isolation Amplifier Module Control signal output is connected to controlling bus.
  2. 2. the control method of two-way One Buck-Boost converter body circuit according to claim 1, it is characterised in that including such as Lower step：Step 1：6 signal datas of collection are filtered by MIMO filtration modules, and filtering framework is multiple-input and multiple-output, That is 6 tunnels input the output of 6 tunnels, and its filtering is as follows:
    Signal is configured to data signal matrix first, the window width for setting data signal is n, makes UCBT=X*1, ILB=X*2, UCo1=X*3, UCo2=X*4, UCo3=X*5, IDC=X*6, wherein " * " number represents the subscript coefficient of data signal, obtain
    <mrow> <mi>X</mi> <mo>=</mo> <msub> <mfenced open = "(" close = ")"> <mtable> <mtr> <mtd> <msub> <mi>x</mi> <mn>11</mn> </msub> </mtd> <mtd> <msub> <mi>x</mi> <mn>12</mn> </msub> </mtd> <mtd> <mn>...</mn> </mtd> <mtd> <msub> <mi>x</mi> <mn>16</mn> </msub> </mtd> </mtr> <mtr> <mtd> <msub> <mi>x</mi> <mn>21</mn> </msub> </mtd> <mtd> <msub> <mi>x</mi> <mn>22</mn> </msub> </mtd> <mtd> <mn>...</mn> </mtd> <mtd> <msub> <mi>x</mi> <mn>26</mn> </msub> </mtd> </mtr> <mtr> <mtd> <mo>.</mo> </mtd> <mtd> <mo>.</mo> </mtd> <mtd> <mo>.</mo> </mtd> <mtd> <mo>.</mo> </mtd> </mtr> <mtr> <mtd> <mo>.</mo> </mtd> <mtd> <mo>.</mo> </mtd> <mtd> <mo>.</mo> </mtd> <mtd> <mo>.</mo> </mtd> </mtr> <mtr> <mtd> <mo>.</mo> </mtd> <mtd> <mo>.</mo> </mtd> <mtd> <mo>.</mo> </mtd> <mtd> <mo>.</mo> </mtd> </mtr> <mtr> <mtd> <msub> <mi>x</mi> <mrow> <mi>n</mi> <mn>1</mn> </mrow> </msub> </mtd> <mtd> <msub> <mi>x</mi> <mrow> <mi>n</mi> <mn>2</mn> </mrow> </msub> </mtd> <mtd> <mn>...</mn> </mtd> <mtd> <msub> <mi>x</mi> <mrow> <mi>n</mi> <mn>6</mn> </mrow> </msub> </mtd> </mtr> </mtable> </mfenced> <mrow> <mi>n</mi> <mo>&amp;times;</mo> <mn>6</mn> </mrow> </msub> </mrow>
    Then the average of 6 road signal Zhong Mei roads signals is calculated, is obtained
    <mrow> <msub> <mover> <mi>x</mi> <mo>&amp;OverBar;</mo> </mover> <mi>j</mi> </msub> <mo>=</mo> <mfrac> <mn>1</mn> <mi>n</mi> </mfrac> <munderover> <mo>&amp;Sigma;</mo> <mrow> <mi>i</mi> <mo>=</mo> <mn>1</mn> </mrow> <mi>n</mi> </munderover> <msub> <mi>x</mi> <mrow> <mi>i</mi> <mi>j</mi> </mrow> </msub> <mo>,</mo> <mi>j</mi> <mo>=</mo> <mn>1</mn> <mo>,</mo> <mn>2</mn> <mo>,</mo> <mn>...</mn> <mo>,</mo> <mn>6</mn> <mo>,</mo> </mrow>
    Then the variance of 6 road signal Zhong Mei roads signals is calculated
    <mrow> <msubsup> <mi>s</mi> <mi>j</mi> <mn>2</mn> </msubsup> <mo>=</mo> <mfrac> <mn>1</mn> <mrow> <mi>n</mi> <mo>-</mo> <mn>1</mn> </mrow> </mfrac> <munderover> <mo>&amp;Sigma;</mo> <mrow> <mi>i</mi> <mo>=</mo> <mn>1</mn> </mrow> <mi>n</mi> </munderover> <msup> <mrow> <mo>(</mo> <msub> <mi>x</mi> <mrow> <mi>i</mi> <mi>j</mi> </mrow> </msub> <mo>-</mo> <msub> <mover> <mi>x</mi> <mo>&amp;OverBar;</mo> </mover> <mi>j</mi> </msub> <mo>)</mo> </mrow> <mn>2</mn> </msup> <mo>,</mo> <mi>j</mi> <mo>=</mo> <mn>1</mn> <mo>,</mo> <mn>2</mn> <mo>,</mo> <mn>...</mn> <mo>,</mo> <mn>6</mn> </mrow>
    Moreover the covariance in 6 road signals between every two paths of signals is calculated, obtain
    <mrow> <msub> <mi>s</mi> <mrow> <mi>j</mi> <mi>k</mi> </mrow> </msub> <mo>=</mo> <mfrac> <mn>1</mn> <mrow> <mi>n</mi> <mo>-</mo> <mn>1</mn> </mrow> </mfrac> <munderover> <mo>&amp;Sigma;</mo> <mrow> <mi>i</mi> <mo>=</mo> <mn>1</mn> </mrow> <mi>n</mi> </munderover> <mrow> <mo>(</mo> <msub> <mi>x</mi> <mrow> <mi>i</mi> <mi>j</mi> </mrow> </msub> <mo>-</mo> <msub> <mover> <mi>x</mi> <mo>&amp;OverBar;</mo> </mover> <mi>j</mi> </msub> <mo>)</mo> </mrow> <mrow> <mo>(</mo> <msub> <mi>x</mi> <mrow> <mi>i</mi> <mi>k</mi> </mrow> </msub> <mo>-</mo> <msub> <mover> <mi>x</mi> <mo>&amp;OverBar;</mo> </mover> <mi>k</mi> </msub> <mo>)</mo> </mrow> <mo>,</mo> <mi>j</mi> <mo>,</mo> <mi>k</mi> <mo>=</mo> <mn>1</mn> <mo>,</mo> <mn>2</mn> <mo>,</mo> <mn>...</mn> <mo>,</mo> <mn>6</mn> </mrow>
    Using sjkValue to data sequence carry out rejecting outliers with renewal, set a threshold value, its method is equation below
    <mrow> <msub> <mi>X</mi> <mrow> <mi>i</mi> <mi>j</mi> </mrow> </msub> <mo>=</mo> <mfenced open = "{" close = ""> <mtable> <mtr> <mtd> <mrow> <mfrac> <mrow> <mo>&amp;lsqb;</mo> <msub> <mi>X</mi> <mrow> <mo>(</mo> <mi>i</mi> <mo>-</mo> <mn>1</mn> <mo>)</mo> <mi>j</mi> </mrow> </msub> <mo>+</mo> <mn>8</mn> <msub> <mi>X</mi> <mrow> <mo>(</mo> <mi>i</mi> <mo>+</mo> <mn>1</mn> <mo>)</mo> <mi>j</mi> </mrow> </msub> <mo>+</mo> <msub> <mover> <mi>X</mi> <mo>&amp;OverBar;</mo> </mover> <mi>j</mi> </msub> <mo>&amp;rsqb;</mo> </mrow> <mn>10</mn> </mfrac> <mo>,</mo> </mrow> </mtd> <mtd> <mrow> <msub> <mi>S</mi> <mrow> <mi>j</mi> <mi>k</mi> </mrow> </msub> <mo>&gt;</mo> <mi>&amp;sigma;</mi> </mrow> </mtd> </mtr> <mtr> <mtd> <msub> <mi>X</mi> <mrow> <mi>i</mi> <mi>j</mi> </mrow> </msub> </mtd> <mtd> <mrow> <msub> <mi>S</mi> <mrow> <mi>j</mi> <mi>k</mi> </mrow> </msub> <mo>&lt;</mo> <mi>&amp;sigma;</mi> </mrow> </mtd> </mtr> </mtable> </mfenced> <mo>,</mo> <mi>i</mi> <mo>=</mo> <mn>2</mn> <mo>,</mo> <mn>3...</mn> <mi>n</mi> <mo>-</mo> <mn>1</mn> </mrow>
    It can obtain after renewal 6 signal datas output of filtering, realizes that MIMO is filtered；
    Step 2：By filtered 6 signal datas obtained by step 1, synchronous stacking control algolithm module, synchronous heap are sent into In folded control algolithm, all power switch pipes are synchronized with control, produces synchronous stacking control logic, its method is will be whole Control process is divided into positive synchronous stacking process and reverse sync stacking process；
    Step 3：Control algolithm flow is stacked by synchronous, synchronous stacking process and reverse sync stacking process are performed successively, i.e., A controlling cycle is can obtain, control information caused by synchronous stacking control algolithm module, is input to pwm signal isolation amplification The control terminal of each power switch pipe is directly connected to after module progress power amplification through controlling bus, realizes the control of whole circuit System；
    Step 4：Repeat step 1~step 3.
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CN102136797A (en) * 2010-09-08 2011-07-27 上海岩芯电子科技有限公司 Modulating method for noninverting Buck-Boost power inverter
CN102355130A (en) * 2011-10-09 2012-02-15 南通大学 Double-tube Buck-Boost type PFC (Power Factor Correction) converter based on one-cycle control
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