CN1925299A - Method for realizing high-quality current stabilization feedback signal of rectifier unit - Google Patents

Method for realizing high-quality current stabilization feedback signal of rectifier unit Download PDF

Info

Publication number
CN1925299A
CN1925299A CN 200610021040 CN200610021040A CN1925299A CN 1925299 A CN1925299 A CN 1925299A CN 200610021040 CN200610021040 CN 200610021040 CN 200610021040 A CN200610021040 A CN 200610021040A CN 1925299 A CN1925299 A CN 1925299A
Authority
CN
China
Prior art keywords
current stabilization
rectifier
transformer
current
feedback signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN 200610021040
Other languages
Chinese (zh)
Other versions
CN100474754C (en
Inventor
周新林
何跃贵
王广稳
付新民
叶延林
徐俊霞
卿红军
吴绍稚
祁生
倪保利
王保宁
雷向军
焦健
安华
蔡有萍
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aluminum Corp of China Ltd
Original Assignee
Aluminum Corp of China Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Aluminum Corp of China Ltd filed Critical Aluminum Corp of China Ltd
Priority to CNB200610021040XA priority Critical patent/CN100474754C/en
Publication of CN1925299A publication Critical patent/CN1925299A/en
Application granted granted Critical
Publication of CN100474754C publication Critical patent/CN100474754C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Rectifiers (AREA)

Abstract

This invention relates to A/D stabilizer circuit and especially to one alumina electrolyte rectification supply system set feedback signal method of high quality. This invention comprises alternating current induction, rectification transducer, self-saturation resistance and rectification device, wherein, the said induction and resistance are set with feedback device and stabilization control and adjust device.

Description

The implementation method of high-quality current stabilization feedback signal of rectifier unit
Technical field
The present invention relates to a kind of alternating current-direct current current stabilization circuit, particularly relate to a kind of implementation method that is used for the high-quality current stabilization feedback signal of rectifier unit of aluminium electrolysis commutator electric power system.
Background technology
Existing steady flow system feedback is to utilize unit 20KA direct current centreless instrument transformer, through the secondary measuring transducer, finish the conversion of direct current 20KA to 0-10V signal, conversion back signal is as the current stabilization feedback of steady flow system, the current stabilization feedback is set common passing through " current stabilization control, adjusting device " with current stabilization and is realized autotransducer control is reached the purpose of current stabilization.There is following shortcoming in this current stabilization feedback signal circuit: the one, direct current centreless mutual inductance secondary singal by adder and the computing of one-accumulate device after, its signal circuit capacitive increases, response dynamics response quality descends, response time can not be satisfied the high accuracy number current stabilization needs of response fast about 100-250mS; The 2nd, current stabilization feedback signal path link is many, and the signal after the conversion can not truly reflect the details that changes with actual current, directly influences the current stabilization control precision.
Goal of the invention and content
The problem to be solved in the present invention is at the deficiencies in the prior art, and a kind of steady flow system feedback signal dynamic responding speed that improves is provided, and improves the implementation method of the high-quality current stabilization feedback signal of rectifier unit of integrated signal quality and quality.
The implementation method of high-quality current stabilization feedback signal of rectifier unit of the present invention is achieved by following technical proposals: the implementation method of high-quality current stabilization feedback signal of rectifier unit of the present invention comprises that AC current transformer, rectifier transformer, autotransducer, rectifier constitute, described AC current transformer output is connected with the rectifier transformer input, the rectifier transformer output is connected with the autotransducer input, the autotransducer output is connected with the rectifier input, the rectifier output dc voltage; And between described AC current transformer and autotransducer, be provided with the control of current stabilization feedback device and current stabilization, adjusting device.
The implementation method of high-quality current stabilization feedback signal of rectifier unit of the present invention compared with prior art has following beneficial effect: because current stabilization feedback signal of the present invention is changed to the AC current transformer output from original rectifier output end, reduce signal circuit and held increasing property, particularly in the current stabilization feedback loop, increased the current stabilization feedback circuit, improve the dynamic responding speed of steady system feedback signal, improved integrated signal quality and response quality.The present invention can be widely used in the digital management system of electrolytic aluminium and chemical enterprise commutation supply voltage system implementation high-accuracy steady-flow.
Description of drawings
The implementation method of high-quality current stabilization feedback signal of rectifier unit of the present invention has following accompanying drawing:
Fig. 1 is the unit steady flow system structural representation of prior art;
Fig. 2 is the implementation method system configuration schematic diagram of high-quality current stabilization feedback signal of rectifier unit of the present invention;
Fig. 3 is the implementation method current stabilization feedback circuit structure schematic diagram of high-quality current stabilization feedback signal of rectifier unit of the present invention.
Wherein: 1, be AC current transformer; 2, be rectifier transformer; 3, be autotransducer; 4, be rectifier; 5, be the current stabilization feedback device; 6, be current stabilization control, adjusting device; 7, be the 1A1A isolation transformer; 8, be bridge rectifier; 9, be voltage transform resistance R1; 10, be π type filter circuit.
Embodiment
Below in conjunction with drawings and Examples technical solution of the present invention is further described.
The implementation method of high-quality current stabilization feedback signal of rectifier unit of the present invention comprises that AC current transformer 1, rectifier transformer 2, autotransducer 3, rectifier 4 constitute, described AC current transformer 1 output is connected with rectifier transformer 2 inputs, rectifier transformer 2 outputs are connected with autotransducer 3 inputs, autotransducer 3 outputs are connected with rectifier 4 inputs, rectifier 4 output dc voltages.
Be connected with the control of current stabilization feedback device 5 and current stabilization, adjusting device 6 between described AC current transformer 1 and the autotransducer 3; Described current stabilization feedback device 5 inputs are connected with AC current transformer 1, and current stabilization feedback device 5 outputs are connected with current stabilization control, adjusting device 6 inputs, and current stabilization control, adjusting device 6 outputs are connected with autotransducer 3.
Described current stabilization feedback device 5 comprises that isolation transformer 7, bridge rectifier 8, voltage transform resistance R19, π type filter circuit 10 constitute; Describedly be connected with isolation transformer 7TA1, TA2, the TA3 of three 1A/1A from rectifying transformer alternating instrument transformer 1 three-phase alternating current once, isolation transformer 7 secondaries are connected with three-phase bridge rectifier circuit 8, bridge rectifier 8 outputs and voltage transform resistance R19 are connected in parallel, after voltage transform resistance 9R1 output and π type filter circuit 10 are connected in parallel, the output high-quality current stabilization feedback signal.
Described isolation transformer 7 secondaries are exported three-phase ac signal according to Y-connection.
Described isolation transformer 7 is 15VA; Rectifier diode is IN54008; Filter capacitor C1 is 0.1 μ F/50V, and C2 is that 0.1 μ F/50V is nonpolarity; Resistance R 1 is 3.2 Ω/10W, and resistance R 2 is 2K/1W.
Embodiment 1.
The current stabilization control, the adjusting device that are connected in the prior art between rectifier secondary and the autotransducer are changed into and being connected between AC current transformer and the autotransducer, and between current stabilization control, adjusting device and AC current transformer the current stabilization feedback device be set; Current stabilization feedback is taken from rectifier transformer current transformer once, current transformer be changed to 250A/1A.From the three-phase alternating current of rectifying transformer alternating Current Transformer Secondary,, isolate the high voltage and the system earth of the instrument transformer of previous stage through isolation transformer TA1, TA2, the TA3 of three 1A/1A.
Isolation transformer 7 secondaries of three 1A/1A connect according to star fashion, the output three-phase ac signal, carry out three phase rectifier through three-phase bridge rectifier V1, V2, V3, V4, V5, V6, survey at the direct current of rectifier bridge voltage transform resistance R1 is installed, realize the conversion of electric current to voltage.
Characteristics such as π type filter circuit 10 Filtering Processing of feedback direct voltage through being made of C1, C2, R2 can obtain high-quality current stabilization feedback signal, and it is fast that this signal has feedback response speed, best in quality.
The constant-current stabilizer component parameters:
Isolation transformer: 15VA;
Rectifier diode: IN54008;
Capacitor: C1:0.1 μ F/50V, C2:0.1 μ F/50V is nonpolarity;
Resistance: R1:3.2 Ω/10W, resistance: R2:2K/1W.

Claims (5)

1, a kind of implementation method of high-quality current stabilization feedback signal of rectifier unit, comprise that AC current transformer (1), rectifier transformer (2), autotransducer (3), rectifier (4) constitute, it is characterized in that: described AC current transformer (1) output is connected with rectifier transformer (2) input, rectifier transformer (2) output is connected with autotransducer (3) input, autotransducer (3) output is connected with rectifier (4) input, rectifier (4) output dc voltage.
2, the implementation method of high-quality current stabilization feedback signal of rectifier unit as claimed in claim 1 is characterized in that: be connected with the control of current stabilization feedback device (5) and current stabilization, adjusting device (6) between described AC current transformer (1) and the autotransducer (3); Described current stabilization feedback device (5) input is connected with AC current transformer (1), current stabilization feedback device (5) output is connected with current stabilization control, adjusting device (6) input, and current stabilization control, adjusting device (6) output are connected with autotransducer (3).
3, the implementation method of high-quality current stabilization feedback signal of rectifier unit as claimed in claim 2 is characterized in that: described current stabilization feedback device (5) comprises that isolation transformer (7), bridge rectifier (8), voltage transform resistance R1 (9), π type filter circuit (10) constitute; Describedly be connected with isolation transformer (7) TA1, TA2, the TA3 of three 1A/1A from rectifying transformer alternating instrument transformer (1) three-phase alternating current once, isolation transformer (7) secondary is connected with three-phase bridge rectifier circuit (8), bridge rectifier (8) output and voltage transform resistance R1 (9) are connected in parallel, after voltage transform resistance R1 (9) output and π type filter circuit (10) are connected in parallel, the output high-quality current stabilization feedback signal.
4, the implementation method of high-quality current stabilization feedback signal of rectifier unit as claimed in claim 3 is characterized in that: described isolation transformer (7) secondary is exported three-phase ac signal according to Y-connection.
5, the implementation method of high-quality current stabilization feedback signal of rectifier unit as claimed in claim 3 is characterized in that: described isolation transformer (7) is 15VA; Rectifier diode is IN54008; Filter capacitor C1 is 0.1 μ F/50V, and C2 is that 0.1 μ F/50V is nonpolarity; Resistance R 1 is 3.2 Ω/10W, and resistance R 2 is 2K/1W.
CNB200610021040XA 2006-05-24 2006-05-24 Method for realizing high-quality current stabilization feedback signal of rectifier unit Expired - Fee Related CN100474754C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB200610021040XA CN100474754C (en) 2006-05-24 2006-05-24 Method for realizing high-quality current stabilization feedback signal of rectifier unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB200610021040XA CN100474754C (en) 2006-05-24 2006-05-24 Method for realizing high-quality current stabilization feedback signal of rectifier unit

Publications (2)

Publication Number Publication Date
CN1925299A true CN1925299A (en) 2007-03-07
CN100474754C CN100474754C (en) 2009-04-01

Family

ID=37817815

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB200610021040XA Expired - Fee Related CN100474754C (en) 2006-05-24 2006-05-24 Method for realizing high-quality current stabilization feedback signal of rectifier unit

Country Status (1)

Country Link
CN (1) CN100474754C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102677097A (en) * 2012-05-30 2012-09-19 国电南瑞科技股份有限公司 Flow-stabilizing fault tolerance control method of aluminum electrolyzation power supply
CN102851703A (en) * 2012-10-09 2013-01-02 国电南瑞科技股份有限公司 Intelligent automatic voltage regulation optimized control method for electrolytic aluminum power supply system
CN102936737A (en) * 2012-11-08 2013-02-20 国电南瑞科技股份有限公司 Method for analyzing control characteristics of self-saturation reactor in electrolytic aluminum rectification system
CN111478604A (en) * 2020-04-07 2020-07-31 贵州航天林泉电机有限公司 Power conversion circuit based on three-phase self-saturation reactor
CN108256196B (en) * 2018-01-10 2021-08-10 重庆大学 Improved pi model obtaining method of single-phase double-winding transformer considering deep saturation characteristic of iron core

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4403707A1 (en) * 1994-02-07 1995-08-10 Leica Mikroskopie & Syst Regulated power supply unit with an electronic transformer
CN1095324A (en) * 1994-02-26 1994-11-23 白龙珠 The pulse direct current arc-welding machine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102677097A (en) * 2012-05-30 2012-09-19 国电南瑞科技股份有限公司 Flow-stabilizing fault tolerance control method of aluminum electrolyzation power supply
CN102677097B (en) * 2012-05-30 2014-09-03 国电南瑞科技股份有限公司 Flow-stabilizing fault tolerance control method of aluminum electrolyzation power supply
CN102851703A (en) * 2012-10-09 2013-01-02 国电南瑞科技股份有限公司 Intelligent automatic voltage regulation optimized control method for electrolytic aluminum power supply system
CN102936737A (en) * 2012-11-08 2013-02-20 国电南瑞科技股份有限公司 Method for analyzing control characteristics of self-saturation reactor in electrolytic aluminum rectification system
CN102936737B (en) * 2012-11-08 2014-12-10 国电南瑞科技股份有限公司 Method for analyzing control characteristics of self-saturation reactor in electrolytic aluminum rectification system
CN108256196B (en) * 2018-01-10 2021-08-10 重庆大学 Improved pi model obtaining method of single-phase double-winding transformer considering deep saturation characteristic of iron core
CN111478604A (en) * 2020-04-07 2020-07-31 贵州航天林泉电机有限公司 Power conversion circuit based on three-phase self-saturation reactor

Also Published As

Publication number Publication date
CN100474754C (en) 2009-04-01

Similar Documents

Publication Publication Date Title
CN106341923B (en) Control circuit, control method and apply its linear LED drive circuit
TWI548191B (en) Resonant dc/dc power converting circuit and method for controlling the same
CN1925299A (en) Method for realizing high-quality current stabilization feedback signal of rectifier unit
AU2015364879C1 (en) Charge/discharge circuit, control method for charge/discharge circuit, control device for charge/discharge circuit, and direct power converter
CN1209867C (en) Method and apparatus for phase current of inverted amplifier control apparatus using single sensor
CN101674016B (en) Power supply device and current sharing control method
CN103973095A (en) Control circuit of power factor correcting circuit
CN104578844B (en) Switching mode power supply circuit
CN109155593A (en) Power inverter
US20160079868A1 (en) Power supply and method for compensating low-frequency output voltage ripple thereof
CN106059272B (en) Active filtration system
CN103856068B (en) Power-converting device
CN101800528A (en) Method and device for extending controller PWM resolution
CN104404605B (en) A kind of electroplanting device of tool dual output commutator
CN203708609U (en) LED driving circuit
KR101174819B1 (en) A electrical energy saver with improved power quality and the saving method thereof
CN103795265A (en) Single-phase and three-phase AC stabilized-voltage power source
CN108667330A (en) Power supply system and method for controlling power supply
CN109687730B (en) Power electronic transformer system and control method thereof
CN102355039A (en) Totally-digitalized high-efficient multi-frequency quick charging power supply
CN206892704U (en) A kind of AC constant-current source
CN108123440A (en) A kind of new three-phase four-wire system active filter
CN106160433B (en) It is a kind of for controlling the feedback system and energy-storage system of current transformer
KR102592006B1 (en) Method and apparatus for controlling output current of inverter
CN204707037U (en) Hand over bridge-type copped wave bidirectional pressure regulating device

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090401

Termination date: 20110524