CN103178738A - Novel efficient energy-saving PWM (pulse-width modulation) industrial rectifying power supply - Google Patents
Novel efficient energy-saving PWM (pulse-width modulation) industrial rectifying power supply Download PDFInfo
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- CN103178738A CN103178738A CN2013100617149A CN201310061714A CN103178738A CN 103178738 A CN103178738 A CN 103178738A CN 2013100617149 A CN2013100617149 A CN 2013100617149A CN 201310061714 A CN201310061714 A CN 201310061714A CN 103178738 A CN103178738 A CN 103178738A
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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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Abstract
A novel efficient energy-saving PWM (pulse-width modulation) industrial rectifying power supply comprises a full-control power device formed three-phase half-bridge or three-phase full-bridge power circuit unit, a power driving circuit unit, a grid side voltage and current sampling and conditioning unit, a direct-current-output-side voltage and current signal sampling and conditioning unit, a DSP (digital signal processor) control circuit unit and a grid side inductor, wherein a grid side voltage and current sampling signal and an output voltage and current sampling signal are connected with the DSP control circuit unit via the conditioning units, a driving level signal output by the DSP control circuit unit is connected with the power circuit unit after being isolated and changed via a driving unit circuit level of the full-control power device, and a grid power source is connected with the power circuit unit via the grid side inductor. The novel efficient energy-saving PWM industrial rectifying power supply has excellent performances that the grid side current is a sinusoidal wave and a grid side power factor is close to 1, and also has the advantages of stable voltage, fast dynamic response and the like that the other rectifying power supplies do not have.
Description
Technical field
The present invention relates to industrial rectifier power source, be mainly used in the fields such as DC driven power supply of salt chemical engineering, electrolysis, plating, electrophoresis and subway, especially a kind of novel energy-conserving PWM industry rectifier power source.
Background technology
The existing rectifier power source that is applied to the industrial circles such as salt chemical engineering, electrolysis, plating and electrophoresis is: the industrial rectifying devices such as diode rectification, the direct rectification of thyristor, AC/DC high frequency electric source and synchronous rectifier, the net side power factor of these rectifying devices is low, harmonic content is high, has caused a large amount of energy wastes to electrical network.
For solving side harmonics content height and the low problem of power factor, people have done a lot of effort at aspects such as harmonic wave inhibition and reactive power compensations, a lot of achievements have also been obtained, but there is no basic head it off, reason is that all controlled rectification circuits consist of with thyristor and continue to use phased approach, also just can't eliminate to produce harmonic wave and idle root.
Summary of the invention
The present invention seeks to: propose brand-new energy-efficient PWM industry rectifier power source, this rectifier power source has current on line side for sinusoidal wave, net side power factor has advantages of simultaneously that close to 1 excellent properties voltage stabilization and dynamic response wait other rectifier power sources to possess soon.
The object of the present invention is achieved like this: the three-phase half-bridge that novel high-efficiency and energy-saving PWM industry rectifier power source is made of full control power device or three phase full bridge power circuit unit, the power driving circuit unit, voltage on line side and current sampling and conditioning unit, the voltage and current sample of signal of direct current outlet side and conditioning unit, DSP control loop unit and net side inductance form; The sampled signal of the voltage and current of net side, the voltage and current sampled signal of output is connected with DSP control circuit unit respectively through conditioning unit; The drive level signal of DSP control circuit unit output through the isolation of driver element circuit level and conversion, is connected with the power circuit unit; Its electric network source is connected with the power circuit unit by net side inductance.
In the present invention: the power circuit unit of novel high-efficiency and energy-saving PWM industry rectifier power source is connected with electrical network by power transformer.
In the present invention: novel high-efficiency and energy-saving PWM industry rectifier power source consists of three-phase half-bridge or three phase full bridge power circuit unit by full control power device, and its directly connection load of direct current output forms the VSR voltage type PWM rectifier power source of this power supply thus.
In the present invention: novel high-efficiency and energy-saving PWM industry rectifier power source consists of three-phase half-bridge or three phase full bridge power circuit unit by full control power device, its direct current output connects load through inductance, its net side inductance connects the power circuit termination filter capacitor, forms thus CSR current mode PWM rectifier power source.
In the present invention: the full control power device of its power circuit unit is the IGBT device, and source electrode and the drain electrode of each IGBT of its VSR voltage type PWM rectifier power source are parallel with back-biased diode.
In the present invention: the full control power device of its power circuit unit is the IGBT device, and the source electrode of each IGBT of its CSR current mode PWM rectifier power source and drain electrode loop are serially connected with forward biased diode.
In the present invention: the full control power device of the power circuit unit of energy-efficient PWM rectifier power source is the GTO device.
The invention has the advantages that: the ac-side current of novel high-efficiency and energy-saving PWM industry rectifier power source is for sinusoidal wave, power factor is near 1, harmonic wave is little, the advantages such as fast response time, fundamentally solved conventional rectifier efficient low and to the problem of electric network pollution, be energy-efficient green power supply truly, this product is implemented industry energy conservation is reduced discharging and is of great importance.
Description of drawings
Fig. 1 is the block diagram of novel high-efficiency and energy-saving PWM industry rectifier power source;
Fig. 2 is the VSR type PWM rectifier power source of the power circuit unit of IGBT full bridge structure;
Fig. 3 is the IGBT half-bridge structure power circuit unit schematic diagram of VSR type PWM rectifier power source;
Fig. 4 is the IGBT half-bridge structure power circuit unit schematic diagram of CSR type PWM rectifier power source;
Fig. 5 is the GTO half-bridge structure power circuit unit schematic diagram of CSR type PWM rectifier power source;
In Fig. 1, BR is the power circuit unit, A1 alternating voltage and current signal collection and conditioning unit, A2 direct voltage and current signal collection and conditioning unit, TR is IBGT power driving circuit unit, DSP is the control circuit unit, and AC is the net electricity, and L is net side inductance, C1 is filter capacitor, and R is load resistance.
V1 and I1 are respectively alternating voltage and current signal, V2 and I2 direct current outlet side voltage and current signal, RA is the output signal of TR power driving circuit unit, SA is the full control power device triggering level signal of DSP unit output, GA is the signal that interchange collection and conditioning unit A1 output to the DSP unit, and the collection of DA direct current and conditioning unit A2 output to the signal of DSP unit.Its course of work is to drive signal by DSP according to the full control of algorithm output power device according to GA and DA electric quantity signal.
In Fig. 2, TRF is power transformer, and LA, LB and LC are net side inductance, and HA, HB and HC are controlled the single-phase H bridge of power device entirely, and DR is the power driving circuit unit, AA alternating current-direct current electric weight signal condition unit, and DSP is control unit, C1 filter capacitor, R are load resistance.
TO/HA is the driving signal of A phase bridge, and TO/HB is the driving signal of B phase bridge, and TO/HC is the driving signal of C phase bridge; The TO/DSP1 signal of DSP unit is connected with the DSP1 of power drive unit DR, and the TO/DSP2 electric quantity acquisition of DSP unit is connected DSP2 and is connected with conditioning unit AA, and K/P connects external keyboard and display, and TOCOM connects external communication module and administrative unit in parallel; VD/CD is direct voltage and current signal, and VA/CAA, VB/CB and VC/CC are net side three-phase alternating voltage and current signal.
Three phase full bridge novel high-efficiency and energy-saving PWM industry rectifier power source is to have connected three independent single-phase full bridge VSR that control on dc bus, when unbalanced power supply, can not have a strong impact on the performance of pwm converter, the control performance when having avoided three phase network uneven worsens and fault.
Fig. 3 is the IGBT half-bridge structure power circuit unit schematic diagram of VSR type PWM rectifier power source, and in figure, TRF is power transformer, and LA, LB and LC are net side inductance, and C1 is filter capacitor, and R is load resistance, and it exports direct load.
Fig. 4 is the IGBT half-bridge structure power circuit unit schematic diagram of CSR type PWM rectifier power source, and in figure, TRF is power transformer, and LA, LB and LC are net side inductance, C2, C3 and C4 are filter capacitor, L1 is outputting inductance, and R is load resistance, and direct current output connects load via inductance L 1.
Fig. 5 is the GTO half-bridge structure power circuit unit schematic diagram of CSR type PWM rectifier power source, and in figure, TRF is power transformer, and LA, LB and LC are net side inductance, C2, C3 and C4 are filter capacitor, L1 is outputting inductance, and R is load resistance, and direct current output connects load via inductance L 1.
Claims (7)
1. novel high-efficiency and energy-saving PWM industry rectifier power source, its technical characteristics is: consist of three-phase half-bridge or three phase full bridge power circuit unit by full control power device, the power driving circuit unit, voltage on line side and current sampling and conditioning unit, the voltage and current sample of signal of direct current outlet side and conditioning unit, DSP control loop unit and net side inductance form; The sampled signal of the voltage and current of net side, the voltage and current sampled signal of output is connected with DSP control circuit unit respectively through conditioning unit; The drive level signal of DSP control circuit unit output through the isolation of driver element circuit level and conversion, is connected with the power circuit unit; Its electric network source is connected with the power circuit unit by net side inductance.
2. novel high-efficiency and energy-saving PWM as claimed in claim 1 industry rectifier power source, its technical characterictic is: its power circuit unit is connected with electrical network by power transformer.
3. one kind as claim 1 and 2 described novel high-efficiency and energy-saving PWM industry rectifier power sources, its technical characterictic is: the power circuit unit consists of three-phase half-bridge or three phase full bridge by full control power device, its direct current output directly connects load, forms thus the VSR voltage type PWM rectifier power source of this power supply.
4. one kind as claim 1 and 2 described novel high-efficiency and energy-saving PWM industry rectifier power sources, its technical characterictic is: the power circuit unit consists of three-phase half-bridge or three phase full bridge by full control power device, its direct current output connects load through inductance, its net side inductance connects the power circuit termination filter capacitor, forms thus CSR current mode PWM rectifier power source.
5. as described in claim 1-4 novel high-efficiency and energy-saving PWM industry rectifier power source, the full control power device of its power circuit unit is the IGBT device, and source electrode and the drain electrode of each IGBT of its VSR voltage type PWM rectifier power source are parallel with back-biased diode.
6. as described in claim 1-4 novel high-efficiency and energy-saving PWM industry rectifier power source, the full control power device of its power circuit unit is the IGBT device, and the source electrode of each IGBT of its CSR current mode PWM rectifier power source and drain electrode loop are serially connected with forward biased diode.
7. as described in claim 1-4 novel high-efficiency and energy-saving PWM industry rectifier power source, the full control power device of its power circuit unit is the GTO device.
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| CN2013100617149A CN103178738A (en) | 2013-02-27 | 2013-02-27 | Novel efficient energy-saving PWM (pulse-width modulation) industrial rectifying power supply |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101056070A (en) * | 2007-05-31 | 2007-10-17 | 吕征宇 | General convertor based on the mixed switch |
| US7518886B1 (en) * | 2005-02-18 | 2009-04-14 | Virginia Tech Intellectual Properties, Inc. | Multiphase soft switched DC/DC converter and active control technique for fuel cell ripple current elimination |
| CN101515760A (en) * | 2008-02-21 | 2009-08-26 | 北京信息工程学院 | Passivity-based control system for voltage type PWM rectifier supplied by unbalanced power supply |
| CN101960702A (en) * | 2008-02-28 | 2011-01-26 | 大金工业株式会社 | Direct AC power converter |
| CN102246406A (en) * | 2008-12-23 | 2011-11-16 | 大金工业株式会社 | Current source power conversion circuit |
| CN202475293U (en) * | 2012-03-22 | 2012-10-03 | 惠州市新科华实业有限公司 | Three-phase voltage pulse width modulation rectifier |
| CN203151394U (en) * | 2013-02-27 | 2013-08-21 | 薛建仁 | Novel high efficient and energy saving PWM industrial rectification power supply |
-
2013
- 2013-02-27 CN CN2013100617149A patent/CN103178738A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7518886B1 (en) * | 2005-02-18 | 2009-04-14 | Virginia Tech Intellectual Properties, Inc. | Multiphase soft switched DC/DC converter and active control technique for fuel cell ripple current elimination |
| CN101056070A (en) * | 2007-05-31 | 2007-10-17 | 吕征宇 | General convertor based on the mixed switch |
| CN101515760A (en) * | 2008-02-21 | 2009-08-26 | 北京信息工程学院 | Passivity-based control system for voltage type PWM rectifier supplied by unbalanced power supply |
| CN101960702A (en) * | 2008-02-28 | 2011-01-26 | 大金工业株式会社 | Direct AC power converter |
| CN102246406A (en) * | 2008-12-23 | 2011-11-16 | 大金工业株式会社 | Current source power conversion circuit |
| CN202475293U (en) * | 2012-03-22 | 2012-10-03 | 惠州市新科华实业有限公司 | Three-phase voltage pulse width modulation rectifier |
| CN203151394U (en) * | 2013-02-27 | 2013-08-21 | 薛建仁 | Novel high efficient and energy saving PWM industrial rectification power supply |
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Application publication date: 20130626 |