CN106877692A - A kind of Vienna rectifiers double-closed-loop control method - Google Patents
A kind of Vienna rectifiers double-closed-loop control method Download PDFInfo
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- CN106877692A CN106877692A CN201510913160.XA CN201510913160A CN106877692A CN 106877692 A CN106877692 A CN 106877692A CN 201510913160 A CN201510913160 A CN 201510913160A CN 106877692 A CN106877692 A CN 106877692A
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- Prior art keywords
- control
- voltage
- sliding formwork
- vienna
- double
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/12—Arrangements for reducing harmonics from ac input or output
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/14—Arrangements for reducing ripples from dc input or output
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
- H02M1/4208—Arrangements for improving power factor of AC input
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0006—Arrangements for supplying an adequate voltage to the control circuit of converters
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- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
Abstract
A kind of Vienna rectifiers double-closed-loop control method, including three-phase Vienna rectification main circuits, outer voltage sliding formwork control, three parts of power inner ring sliding formwork control.The control structure of algorithm is simple, and operand is small, and introducing voltage squared feedback makes system have good dynamic electric voltage tracking effect.When system starts with load changing, system response time is both improved using two close cycles sliding formwork control, the interference free performance of system is improve again；Two close cycles sliding mode control algorithm can meet the control performance requirement of system simultaneously：Net side is unit power factor, and input current sine degree is high and harmonic content is low, exports DC voltage stability and ripple is small etc..
Description
Technical field
The present invention relates to a kind of control method of Vienna rectifiers, more particularly to a kind of double-closed-loop control method of Vienna rectifiers.
Background technology
Sliding formwork control（Sliding
Mode Control, SMC）It is a kind of discontinuous nonlinear Control, the rapidly state of a control of switching system on the sliding-mode surface being pre-designed, with HF switch characteristic, is particularly well-suited to the switch control of power electronic equipment.It is insensitive to Parameters variation and external disturbance and SMC is not high to system model required precision, have the advantages that rapid dynamic response speed, strong antijamming capability, control law are simple and it is easy to realize.Three-phase Vienna rectifiers, because its circuit structure that has less number of switches is simple, without output voltage bridge arm direct pass, need not set that switching dead, Harmonics of Input content are low, be capable of achieving input unity power factor correction the advantages of, by the extensive concern of scholars.Research to Vienna rectifiers is concentrated mainly on mathematics model analysis, optimization pulse modulation technology and improves the aspect of control strategy of circuit performance etc. three.With the variation of Vienna rectifiers application scenario, to its quiet, dynamic property requirement also more and more higher, because the rectifier is a nonlinear system, it is difficult to reach preferable control effect using conventional two close cycles PI control algolithms.
The PI adjusters control parameter of conventional current voltage double-loop control strategy is constant and more sensitive, is started in system and during load change, and Vienna rectifiers have that dynamic responding speed is slow, interference free performance is poor, current on line side harmonic wave（THD）The problems such as content is big.
The content of the invention
In order to overcome Vienna
Rectifier has that dynamic responding speed is slow, interference free performance is poor, current on line side harmonic wave（THD）The big problem of content, the present invention proposes a kind of double-closed-loop control method of Vienna rectifiers.
The present invention should be to new two close cycles sliding formwork non-linear control strategy in the two close cycles of Vienna rectifiers, be proposed by sliding formwork control, and inner ring uses Direct Power sliding formwork control（DPC-SMC）, it is not necessary to the phase information and synchronous rotating angle of line voltage, simple with control structure, amount of calculation is small and the advantages of fast dynamic response；Outer voltage improves voltage responsive speed using voltage squared feedback closed loop sliding mode controller.
Vienna rectifier double-closed-loop control methods, including three-phase Vienna rectification main circuits, outer voltage sliding formwork control, three parts of power inner ring sliding formwork control.
The three-phase Vienna rectification main circuits, the bridge circuit being made up of six diodes, three switches, two filter capacitors and loads and power supply are constituted.
The outer voltage sliding formwork control, is tracked using d shaft currents using linear PI adjusters to DC bus-bar voltage, and construction realizes the sliding mode control strategy of voltage close loop with voltage squared as controlled quentity controlled variable indirectly, to improve the dynamic characteristic and stable state accuracy of system.
The power inner ring sliding formwork control designs sliding formwork control using exponential approach rate, buffeting for weakening Sliding mode variable structure control, in order to eliminate the error between system state variables and its reference value, it is system variable and its difference of reference value to define the input of sliding mode controller.
The beneficial effects of the invention are as follows：The control structure of algorithm is simple, and operand is small, and introducing voltage squared feedback makes system have good dynamic electric voltage tracking effect.When system starts with load changing, system response time is both improved using two close cycles sliding formwork control, the interference free performance of system is improve again；Two close cycles sliding mode control algorithm can meet the control performance requirement of system simultaneously：Net side is unit power factor, and input current sine degree is high and harmonic content is low, exports DC voltage stability and ripple is small etc..Therefore, two close cycles sliding formwork control has good application value.
Brief description of the drawings
The topological structure of Fig. 1 three-phase Vienna rectifiers.
Fig. 2 three-phase Vienna rectifier control block diagrams.
Specific embodiment
In Fig. 1, each two-way switch is made up of a switching power devices and four diodes, and structure is as shown in Fig. 1 right sides；There is upper and lower two fast recovery diodes on every bridge arm（A phases）.Active power one direction flows to DC side from AC, and reactive power only flows in AC, and both coupled relations are embodied by AC inductance；DC capacitor does not consume power in a switch periods, only provides the effect of stable DC voltage；Active power is embodied by the magnitude square of DC voltage, the output of outer voltage as power inner ring active set-point, idle set-point is set as zero.
Sliding mode controller designs sliding mode controller, the buffeting for weakening Sliding mode variable structure control using exponential approach rate.By reasonable selection parameter, both the dynamic quality of sliding mode can have been ensured, the high frequency that control signal can be weakened again is buffeted, system state amount is allowed to tend to sliding-mode surface with two kinds of speed of speed change and index, improve convergence speed, when close to sliding-mode surface, the speed of exponentially approaching rule is close to zero, and effectively reduces into shake during sliding-mode surface.
According to Mathematical Modeling of the rectifier under static alpha-beta coordinate system, by after synchronous rotation transformation, DC bus-bar voltage is related with electric current and electric current, DC bus-bar voltage is tracked using d shaft currents id using linear pi regulator, construction realizes the sliding mode control strategy of voltage close loop with voltage squared as controlled quentity controlled variable indirectly, to improve the dynamic characteristic and stable state accuracy of system.
Fig. 2, according to the three-phase mains voltage and electric current that detect, using the formula under rest frame, instantaneous active and reactive power are tried to achieve in estimation, the output of outer shroud control as inner ring active power set-point, it is idle given to be set as zero, tried to achieve using power error formula, carry out space vector modulation.Power inner ring is without synchronous speed rotating coordinate transformation and the phase information of line voltage, and control structure is simple；Used as feedback quantity, its equivalent does not influence the stability of a system to the magnitude square of outer voltage in increase DC current gain, voltage is quickly followed its set-point by the error amplified, and accelerates the response speed of system.
Claims (4)
1. a kind of Vienna rectifiers double-closed-loop control method, it is characterised in that：Including three-phase Vienna rectification main circuits, outer voltage sliding formwork control, three parts of power inner ring sliding formwork control.
2. Vienna rectifiers double-closed-loop control method as claimed in claim 1, it is characterised in that bridge circuit, three switches, two filter capacitors and loads and the power supply that the three-phase Vienna rectification main circuits are made up of six diodes are constituted.
3. Vienna rectifiers double-closed-loop control method as claimed in claim 1, it is characterized in that the outer voltage sliding formwork control uses linear PI adjusters, construction realizes the sliding mode control strategy of voltage close loop with voltage squared as controlled quentity controlled variable indirectly, can be improving the dynamic characteristic and stable state accuracy of system.
4. Vienna rectifiers double-closed-loop control method as claimed in claim 1, it is characterised in that the power inner ring sliding formwork control designs sliding formwork control, the buffeting for weakening Sliding mode variable structure control using exponential approach rate.
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| CN201510913160.XA CN106877692A (en) | 2015-12-11 | 2015-12-11 | A kind of Vienna rectifiers double-closed-loop control method |
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| CN201510913160.XA CN106877692A (en) | 2015-12-11 | 2015-12-11 | A kind of Vienna rectifiers double-closed-loop control method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107317490A (en) * | 2017-07-03 | 2017-11-03 | 三峡大学 | A kind of dead beat prediction direct Power Control method based on three-phase Vienna rectifiers |
| CN108322039A (en) * | 2018-05-08 | 2018-07-24 | 武汉理工大学 | A kind of control system and method for the two close cycles PFC rectifiers that Fuzzy Reaching Law synovial membrane becomes |
| CN108539978A (en) * | 2018-04-13 | 2018-09-14 | 杭州电子科技大学 | A kind of adaptive control system of Boost type DC-DC converter |
| CN109936298A (en) * | 2017-12-15 | 2019-06-25 | 日立江森自控空调有限公司 | Rectification circuit and power supply device |
| CN113098304A (en) * | 2021-05-19 | 2021-07-09 | 河海大学 | Control circuit of three-phase Vienna rectifier and mixed carrier modulation method thereof |
| CN113746359A (en) * | 2021-09-10 | 2021-12-03 | 东南大学 | Control system, controller and design method of four-wire VIENNA rectifier |
-
2015
- 2015-12-11 CN CN201510913160.XA patent/CN106877692A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107317490A (en) * | 2017-07-03 | 2017-11-03 | 三峡大学 | A kind of dead beat prediction direct Power Control method based on three-phase Vienna rectifiers |
| CN109936298A (en) * | 2017-12-15 | 2019-06-25 | 日立江森自控空调有限公司 | Rectification circuit and power supply device |
| CN109936298B (en) * | 2017-12-15 | 2021-02-19 | 日立江森自控空调有限公司 | Rectifier circuit and power supply device |
| CN108539978A (en) * | 2018-04-13 | 2018-09-14 | 杭州电子科技大学 | A kind of adaptive control system of Boost type DC-DC converter |
| CN108539978B (en) * | 2018-04-13 | 2019-09-17 | 杭州电子科技大学 | A kind of adaptive control system of Boost type DC-DC converter |
| CN108322039A (en) * | 2018-05-08 | 2018-07-24 | 武汉理工大学 | A kind of control system and method for the two close cycles PFC rectifiers that Fuzzy Reaching Law synovial membrane becomes |
| CN108322039B (en) * | 2018-05-08 | 2023-12-29 | 武汉理工大学 | Control system and method for fuzzy double closed loop PFC rectifier approaching to rhythmic synovial membrane change |
| CN113098304A (en) * | 2021-05-19 | 2021-07-09 | 河海大学 | Control circuit of three-phase Vienna rectifier and mixed carrier modulation method thereof |
| CN113098304B (en) * | 2021-05-19 | 2022-04-29 | 河海大学 | Control circuit of three-phase Vienna rectifier and mixed carrier modulation method thereof |
| CN113746359A (en) * | 2021-09-10 | 2021-12-03 | 东南大学 | Control system, controller and design method of four-wire VIENNA rectifier |
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Application publication date: 20170620 |
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