CN108011513A - High-voltage high-speed generator step-down rectifier PFC system based on SWISS rectifiers - Google Patents
High-voltage high-speed generator step-down rectifier PFC system based on SWISS rectifiers Download PDFInfo
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- CN108011513A CN108011513A CN201810014506.6A CN201810014506A CN108011513A CN 108011513 A CN108011513 A CN 108011513A CN 201810014506 A CN201810014506 A CN 201810014506A CN 108011513 A CN108011513 A CN 108011513A
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- rectifiers
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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
- 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
- H02M1/4233—Arrangements for improving power factor of AC input using a bridge converter comprising active switches
-
- 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
- H02M7/219—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 bridge configuration
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
- H02P21/22—Current control, e.g. using a current control loop
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/007—Control circuits for doubly fed generators
-
- 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
Abstract
The invention discloses a kind of high-voltage high-speed generator step-down rectifier PFC system based on SWISS rectifiers, the high-voltage high-speed generator step-down rectifier PFC system based on SWISS rectifiers includes：One high-voltage high-speed generator, an input filter, a SWISS rectifier and two sets of controllers.The invention also discloses the control method of said system, send out pusher side and introduce SWISS rectifiers, rotating speed and rectifier input power factor to high-voltage high-speed generator carry out double-closed-loop control, in addition, DC bus-bar voltage and DC side electric current to rectifier carry out double-closed-loop control, which can realize decompression PFC functions.The present invention can solve the problems, such as that the distortion of high-voltage high-speed generator unit stator electric current is serious, pfc circuit and BUCK circuits be combined, so as to improve the stability and efficiency of system.
Description
Technical field
The invention belongs to generator commutation control field, and in particular to a kind of high-voltage high-speed hair based on SWISS rectifiers
Electric step-down rectifier PFC system and its control method.
Background technology
The energy is the power producer for promoting economic growth and social progress, is the weight for being related to national economy, social stability
Want material.With the rapid development of China's modern industry, the fossil energy such as oil, natural gas and coal is petered out, environment is asked
Inscribe the significant problem increasingly prominent, the energy and environment have been faced as China.
Waste heat refer to it is that coal, oil, natural gas etc. emit after industrial utilization, other lifes can not be continued to participate in
The energy of production process.It is using high temperature heat as the form of expression, using exhaust gas, waste residue and waste water as energy carrier.China's residual heat resources
It is very abundant, account for 20% or so of industrial total energy consumption.Therefore, UTILIZATION OF VESIDUAL HEAT IN has a vast market prospect.
High-voltage high-speed magneto alternator has the advantages that efficient, reliability is high, compact-sized, maintenance is small, with
This at the same time, high-voltage high-speed generator and expansion turbine are connected directly the generating set of composition, and centre can save deceleration device, can
System bulk is greatly reduced, improves system effectiveness and reliability.Therefore, high-voltage high-speed generator is widely used in high-power remaining
Heat generating system.
Conventional high-tension high-speed engine uses six switch PWM rectification topology of three-phase, with specified turn of high-voltage high-speed generator
The continuous improvement of speed, the output frequency of high-voltage high-speed generator greatly improves, and is that high pressure is high it could even be possible to reaching thousand hertz
The rectification modulation of speed generator brings difficulty, and resulting generator unit stator electric current harmonic wave can not only increase high-voltage high-speed power generation
The loss and temperature rise of machine, can also increase its torque pulsation, threaten system safety.At the same time, due to six switch PWM rectification of three-phase
It is a kind of booster type rectifier, usually also needs to increase level-one DC/DC reduction voltage circuits thereafter.Therefore, it is necessary to design a kind of height
Reliability, the high-voltage high-speed generator-rectifier system of high integration and its control method.
The content of the invention
The defects of for described in background technology or deficiency, the present invention provides a kind of high pressure based on SWISS rectifiers is high
Speed generator step-down rectifier PFC system and its control method, system has high integration high and high reliability.
A kind of high-voltage high-speed generator step-down rectifier PFC system based on SWISS rectifiers, including a high-voltage high-speed is forever
Magnetic-synchro generator, an input filter, a SWISS rectifier and two sets of controllers（Controller 1 and controller 2）, two
Set controller is respectively controlled pfc circuit and BUCK circuits.
The SWISS rectifiers by three-phase can not control rectifier, main switch, auxiliary switch, two series connection diodes with
And inductance capacitance is formed.
The main switch is by three bridge arm parallel connections, wherein each bridge arm is made of the IGBT of two differential concatenations.
The threephase stator of the High Speed Permanent Magnet Synchronous Generator three main switch bridge arm phases with SWISS rectifiers respectively
Even, the midpoint after main switch bridge arm parallel connection is connected with the diode midpoint of two series connection, and the both ends of two auxiliary switches connect respectively
Connect three-phase can not control rectifier common cathode and upper end inductance and three-phase can not control rectifier public anode and lower end inductance.
The controller 1 is used for the rotating speed, rotor position angle and threephase stator electric current for gathering high-voltage high-speed generator, then
The rotating speed and SWISS rectifier input power factors of generator are controlled by pulse width modulating signal；The control
Device 2 is used for the threephase stator voltage, DC voltage and DC side electric current for gathering high-voltage high-speed generator, then wide by pulse
Degree modulated signal is controlled DC bus-bar voltage and DC bus current.
The control method of the above-mentioned high-voltage high-speed generator step-down rectifier PFC system based on SWISS rectifiers includes as follows
Step：
(1) rotating speed of high-voltage high-speed magneto alternator is detected in real timeω r , rotor position angleӨ r With high-voltage high-speed generator
Threephase stator electric current；
(2) rotor position angle is utilizedӨ r The threephase stator electric current of high-voltage high-speed generator is carried outdqConversion, obtains
Threephase stator electric currentdqAxis component；
(3) by generator speed and stator current double-closed-loop control, voltage reference value is obtainedαβComponent；
(4) voltage reference value that will be obtained in (3)αβComponent input pulse width modulation controller, obtains the control of main switch
Pulse signal；
(5) DC bus-bar voltage is detected in real timeU dc , DC bus currentI dc , three-phase can not control rectifier public anode voltageu i , three-phase can not control rectifier common cathode voltageu j ；
(6) the Voltage Reference amount and voltage compensation quantity phase obtained DC bus-bar voltage and DC bus current double-closed-loop control
Add, then compared with carrier wave, obtain the control wave of auxiliary switch.
Double-closed-loop control in the step (3) is small with the stabilization of speed of high-voltage high-speed generator and Stator Current Harmonic
Target in order to control.
Voltage reference value in the step (3)αβComponent specifically obtains by the following method：High-voltage high-speed generator is turned
The reference value and detected value of speed are compared, by obtaining high-voltage high-speed generator after pi regulatorqShaft current reference value, gives
High-voltage high-speed generatordShaft current reference value is 0, by high-speed power generation machine statordqShaft current reference value and detected value are compared
Afterwards, obtain modulating required voltage by pi regulator and givedqAxis component, then pass throughdq-αβConversion is translated into main switch
Voltage reference valueαβComponent.
Double-closed-loop control is with DC bus-bar voltage and electric current stability contorting target in the step (6), and realizes drop
Press function.
Voltage reference value specifically obtains by the following method in the step (6)：By the reference value of DC bus-bar voltage and
Detected value is compared, by obtaining DC bus current reference value after pi regulator, by the reference value of DC bus current and
Detected value is compared, and obtains the voltage reference value by pi regulator, then aided in after it is added with voltage compensation quantity
Switching voltage reference value.
Voltage compensation quantity can not control rectifier public anode voltage by three-phase in the step (6)u i , three-phase it is uncontrollable
Rectifier common cathode voltageu j With generator unit stator phase voltage amplitudeU P Calculate and obtain.
The control method of the high-voltage high-speed generator step-down rectifier PFC system based on SWISS rectifiers, passes through control
Device 2 processed is controlled auxiliary switch, so as to fulfill step-down rectifier PFC functions.
The present invention is had an advantage that compared with prior art：
(1) converter system being made of high-voltage high-speed generator and SWISS rectifiers, its fairing and conventional three-phase six switch
PWM rectifier adds the BUCK circuits active switching devices less compared to needs, and PFC rectification circuits and reduction voltage circuit are combined, carried
The high integrated level of system；
(2) since SWISS rectifiers have the equivalent switching frequency of higher, have just in the case where input AC frequency is higher
The generator unit stator electric current harmonic wave of string degree higher, improves the reliability and efficiency of system.
Brief description of the drawings
Fig. 1 is the high-voltage high-speed generator step-down rectifier PFC system knot based on SWISS rectifiers that present example provides
Structure schematic diagram.
Fig. 2 is the high-voltage high-speed generator step-down rectifier PFC system based on SWISS rectifiers that present example provides
Control block diagram.
Embodiment
In order to more specifically describe the present invention, the present invention will be further described with embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of high-voltage high-speed generator step-down rectifier PFC system based on SWISS rectifiers, including one
High-voltage high-speed magneto alternator, an input filter, a SWISS rectifier and two sets of controllers（Controller 1 and control
Device 2 processed）, two sets of controllers are respectively controlled pfc circuit and BUCK circuits.Wherein：
SWISS rectifiers can not control rectifier, main switch, auxiliary switch, two diodes connected and inductance electricity by three-phase
Hold and form；Main switch is by three bridge arm parallel connections, wherein each bridge arm is made of the IGBT of two differential concatenations；High-voltage high-speed permanent magnetism
The threephase stator of synchronous generator is connected with three main switch bridge arms of SWISS rectifiers respectively, after main switch bridge arm parallel connection
Midpoint is connected with the diode midpoints of two series connection, the both ends of two auxiliary switches connect respectively three-phase can not control rectifier it is public
Cathode and upper end inductance and three-phase can not control rectifier public anode and lower end inductance.
Controller 1 is used for the rotating speed, rotor position angle and threephase stator electric current for gathering high-voltage high-speed generator, then passes through
Pulse width modulating signal is controlled the rotating speed and SWISS rectifier input power factors of generator；The controller 2 is used
In threephase stator voltage, DC voltage and the DC side electric current of collection high-voltage high-speed generator, then pass through pulse width tune
Signal processed is controlled DC bus-bar voltage and DC bus current.
The control block diagram of high-voltage high-speed generator step-down rectifier PFC system of the present embodiment based on SWISS rectifiers is such as
Shown in Fig. 2, control method includes the following steps：
(1) rotating speed of high-voltage high-speed magneto alternator is detected in real timeω r , rotor position angleӨ r With high-voltage high-speed generator
Threephase stator electric current；
(2) rotor position angle is utilizedӨ r The threephase stator electric current of high-voltage high-speed generator is carried outdqConversion, obtains
Threephase stator electric currentdqAxis component；
(3) reference value of high-voltage high-speed generator speed and detected value are compared, by obtaining high pressure height after pi regulator
Speed generatorqShaft current reference value, gives high-voltage high-speed generatordShaft current reference value is 0, by high-speed power generation machine statordqAxis
After current reference value and detected value are compared, obtain modulating required voltage by pi regulator and givedqAxis component, then lead to
Crossdq-αβConversion is translated into main switch voltage reference valueαβComponent；Double-closed-loop control is with the rotating speed of high-voltage high-speed generator
Stablize and the small target in order to control of Stator Current Harmonic；
(4) voltage reference value that will be obtained in (3)αβComponent input pulse width modulation controller, obtains the control of main switch
Pulse signal；
(5) DC bus-bar voltage is detected in real timeU dc , DC bus currentI dc , three-phase can not control rectifier public anode voltageu i , three-phase can not control rectifier common cathode voltageu j ；
(6) reference value of DC bus-bar voltage and detected value are compared, by obtaining DC bus current after pi regulator
Reference value, the reference value of DC bus current and detected value are compared, and the voltage reference value is obtained by pi regulator, then
Auxiliary switch voltage reference value is obtained after it is added with voltage compensation quantity, by it compared with carrier wave, obtains auxiliary switch
Control wave.
The example is only an example of the present invention, and not all example, all modifications under thinking of the present invention and principle,
Improvement project belongs to protection scope of the present invention.
Claims (10)
1. the high-voltage high-speed generator step-down rectifier PFC system based on SWISS rectifiers, it is characterised in that including a high pressure
High Speed Permanent Magnet Synchronous Generator, an input filter, a SWISS rectifier and two sets of controllers（Controller 1 and controller
2）, two sets of controllers are respectively controlled pfc circuit and BUCK circuits；The SWISS rectifiers are by the uncontrollable rectification of three-phase
Device, main switch, auxiliary switch, two diodes connected and inductance capacitance are formed；The main switch by three bridge arm parallel connections,
Wherein each bridge arm is made of the IGBT of two differential concatenations.
2. the high-voltage high-speed generator step-down rectifier PFC system according to claim 1 based on SWISS rectifiers, it is special
Sign is that the threephase stator of the High Speed Permanent Magnet Synchronous Generator is connected with three main switch bridge arms of SWISS rectifiers respectively,
Midpoint after main switch bridge arm parallel connection is connected with the diode midpoint of two series connection, and the both ends of two auxiliary switches connect three respectively
Mutually can not control rectifier common cathode and upper end inductance and three-phase can not control rectifier public anode and lower end inductance.
3. the high-voltage high-speed generator step-down rectifier PFC system according to claim 1 based on SWISS rectifiers, it is special
Sign is that the controller 1 is used for the rotating speed, rotor position angle and threephase stator electric current for gathering high-voltage high-speed generator, then
The rotating speed and SWISS rectifier input power factors of generator are controlled by pulse width modulating signal；The control
Device 2 is used for the threephase stator voltage, DC voltage and DC side electric current for gathering high-voltage high-speed generator, then wide by pulse
Degree modulated signal is controlled DC bus-bar voltage and DC bus current.
4. a kind of control method of the high-voltage high-speed generator step-down rectifier PFC system based on SWISS rectifiers, its feature exist
In high-voltage high-speed generator connecting in parallel with system system is included the following steps using the topological structure described in claim 1, its control method：
(1) rotating speed of high-voltage high-speed magneto alternator is detected in real timeω r , rotor position angleӨ r With high-voltage high-speed generator
Threephase stator electric current；
(2) rotor position angle is utilizedӨ r The threephase stator electric current of high-voltage high-speed generator is carried outdqConversion, obtains three
Phase stator currentdqAxis component；
(3) by generator speed and stator current double-closed-loop control, voltage reference value is obtainedαβComponent；
(4) voltage reference value that will be obtained in (3)αβComponent input pulse width modulation controller, obtains the control of main switch
Pulse signal；
(5) DC bus-bar voltage is detected in real timeU dc , DC bus currentI dc , three-phase can not control rectifier public anode voltageu i 、
Three-phase can not control rectifier common cathode voltageu j ；
(6) the Voltage Reference amount and voltage compensation quantity phase obtained DC bus-bar voltage and DC bus current double-closed-loop control
Add, then compared with carrier wave, obtain the control wave of auxiliary switch.
5. the control of the high-voltage high-speed generator step-down rectifier PFC system according to claim 4 based on SWISS rectifiers
Method, it is characterised in that the double-closed-loop control in the step (3) is with the stabilization of speed of high-voltage high-speed generator and stator electricity
Flow the small target in order to control of harmonic wave.
6. the control of the high-voltage high-speed generator step-down rectifier PFC system according to claim 4 based on SWISS rectifiers
Method, it is characterised in that voltage reference value in the step (3)αβComponent specifically obtains by the following method：By high-voltage high-speed
The reference value and detected value of generator speed are compared, by obtaining high-voltage high-speed generator after pi regulatorqShaft current is joined
Value is examined, gives high-voltage high-speed generatordShaft current reference value is 0, by high-speed power generation machine statordqShaft current reference value and detection
After value is compared, obtains modulating required voltage by pi regulator and givedqAxis component, then pass throughdq-αβBecome its turn of changing commanders
Turn to main switch voltage reference valueαβComponent.
7. the control of the high-voltage high-speed generator step-down rectifier PFC system according to claim 4 based on SWISS rectifiers
Method, it is characterised in that in the step (6) double-closed-loop control with DC bus-bar voltage and electric current stability contorting target, and
Realize buck functionality.
8. the control of the high-voltage high-speed generator step-down rectifier PFC system according to claim 4 based on SWISS rectifiers
Method, it is characterised in that voltage reference value specifically obtains by the following method in the step (6)：By DC bus-bar voltage
Reference value and detected value are compared, by obtaining DC bus current reference value after pi regulator, by DC bus current
Reference value and detected value are compared, and the voltage reference value is obtained by pi regulator, then after it is added with voltage compensation quantity
Obtain auxiliary switch voltage reference value.
9. the control of the high-voltage high-speed generator step-down rectifier PFC system according to claim 4 based on SWISS rectifiers
Method, it is characterised in that voltage compensation quantity can not control rectifier public anode voltage by three-phase in the step (6)u i , three
Mutually can not control rectifier common cathode voltageu j With generator unit stator phase voltage amplitudeU P Calculate and obtain.
10. the control of the high-voltage high-speed generator step-down rectifier PFC system according to claim 4 based on SWISS rectifiers
Method processed, it is characterised in that main switch is controlled by controller 1, auxiliary switch is controlled by controller 2,
So as to fulfill step-down rectifier PFC functions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810014506.6A CN108011513A (en) | 2018-01-08 | 2018-01-08 | High-voltage high-speed generator step-down rectifier PFC system based on SWISS rectifiers |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810014506.6A CN108011513A (en) | 2018-01-08 | 2018-01-08 | High-voltage high-speed generator step-down rectifier PFC system based on SWISS rectifiers |
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Family
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| CN201810014506.6A Pending CN108011513A (en) | 2018-01-08 | 2018-01-08 | High-voltage high-speed generator step-down rectifier PFC system based on SWISS rectifiers |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108462384A (en) * | 2018-06-09 | 2018-08-28 | 南昌航空大学 | A kind of three-phase step-down type PFC rectification circuits |
| CN109818513A (en) * | 2019-03-19 | 2019-05-28 | 哈尔滨理工大学 | A kind of two-way mixed-rectification device of modified based on LLC series resonance |
| CN110838798A (en) * | 2019-11-26 | 2020-02-25 | 东莞南方半导体科技有限公司 | SWISS matrix converter topological structure |
| CN112532038A (en) * | 2020-10-27 | 2021-03-19 | 东南大学 | Control system and method for reducing current distortion at three-phase Stevens circuit boundary |
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| CN104579110A (en) * | 2014-09-25 | 2015-04-29 | 湖南大学 | Variable-frequency speed regulation system and method of high-speed permanent magnet motor |
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| CN104579110A (en) * | 2014-09-25 | 2015-04-29 | 湖南大学 | Variable-frequency speed regulation system and method of high-speed permanent magnet motor |
| CN105305855A (en) * | 2015-11-05 | 2016-02-03 | 南京航空航天大学 | Three-phase isolating type bidirectional AC-DC converter and control method therefor |
| CN106549597A (en) * | 2016-10-21 | 2017-03-29 | 南京航空航天大学 | A kind of two-way AC DC changers based on active-clamp magnetic reset |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108462384A (en) * | 2018-06-09 | 2018-08-28 | 南昌航空大学 | A kind of three-phase step-down type PFC rectification circuits |
| CN109818513A (en) * | 2019-03-19 | 2019-05-28 | 哈尔滨理工大学 | A kind of two-way mixed-rectification device of modified based on LLC series resonance |
| CN110838798A (en) * | 2019-11-26 | 2020-02-25 | 东莞南方半导体科技有限公司 | SWISS matrix converter topological structure |
| CN112532038A (en) * | 2020-10-27 | 2021-03-19 | 东南大学 | Control system and method for reducing current distortion at three-phase Stevens circuit boundary |
| CN112532038B (en) * | 2020-10-27 | 2021-12-28 | 东南大学 | Control system and method for reducing current distortion at three-phase Stevens circuit boundary |
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Application publication date: 20180508 |