CN103929103B - A kind of high power DC electric machine pair the silicon controlled rectifier driven - Google Patents
A kind of high power DC electric machine pair the silicon controlled rectifier driven Download PDFInfo
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- CN103929103B CN103929103B CN201410134245.3A CN201410134245A CN103929103B CN 103929103 B CN103929103 B CN 103929103B CN 201410134245 A CN201410134245 A CN 201410134245A CN 103929103 B CN103929103 B CN 103929103B
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Abstract
The invention discloses the silicon controlled rectifier that a kind of high power DC electric machine is double and drives, it is characterized in, it is by rectifier transformer ZB1(5), rectifier transformer ZB2(8), first main transmission DC speed regulator (2), second main transmission DC speed regulator (4), power of controlled silicon unit KK1(7), power of controlled silicon unit KK2(10), direct current generator M1(13), direct current generator M2(15) and exciting rectifier transformer ZBL(12), excitation rectifier device (11) forms, form independent rotating speed, current double closed-loop system, 2 cover systems use identical main transmission speed preset Vg(1), velocity feedback is respectively adopted respective velocity feedback；By regulating the balancing the load of two motors of velocity interpolation of the second main transmission DC speed regulator (4)；If two current of electric difference is bigger, uses and speed or speed reduces mode and carries out compensated torque carrying out speed from motor；Owing to master and slave device is each with speed ring, backlash impact in systems can be weakened, it is ensured that the normal startup of motor.
Description
Technical field:
The present invention relates to electrical automation technical field, specifically a kind of high power DC electric machine is double and drives
Silicon controlled rectifier；Being applicable to utilize the double extending capacity reformation of existing motor, silicon controlled rectifier, two motor rigidity are even
Connect the occasion that gap is bigger.
Background technology:
For needing the high power DC electric machine drive apparatus that driving torque is the biggest, in order to reduce the rotary inertia of motor with
And the difficulty on manufacturing, generally select two motors double and type of drive, or two motor shafts are connected in series through one end to end and subtract
Speed machine drive same load, or two motors column distribution respectively by two reductors (can also be dual input, a list
Output speed reducer) drive same load.Silicon controlled rectifier that is double for high power DC electric machine and that drive, common control
Mode:
1, two armature of direct current motor series connection, are individually powered by a set of silicon controlled rectifier or identical controlled by two sets
Silicon rectifier device series-fed.Two armature series connection, fundamentally ensure that two motor torques (electric current) synchronize consistent.
But two parameters of electric machine of same specifications and models can not be identical, armature series operating voltage can slightly difference.
Two set silicon controlled rectifiers of equal-wattage can be connected in series at rectification outlet side powers to direct current generator, ginseng
Number is set to 12 pulse series connection active rectification devices and two covering devices of the 12 pulses driven rectifiers of series connection, by also
Line interface coupling and with being electrically isolated but the difference power supply of 30 ° is powered each other.
No matter use a set of silicon controlled rectifier individually to power or use two set identical silicon controlled rectifier series connection
Power supply, all can solve the current balance type problem of two motors, but the voltage etc. that motor, cable and fairing components and parts bear
Level needs to double.Because existing equipment electric pressure has been fixed, it is not suitable for utilizing existing direct current generator, rectifier transformer
Device, silicon controlled rectifier carry out the occasion of extending capacity reformation.
2, two armature of direct current motor parallel connections, are powered by a set of individually controllable silicon rectifier device or identical controlled by two sets
Silicon rectifier device parallel operation.
Subject matter is the current balance type problem being difficult to hold two motors, owing to motor internal resistance is little, two motors
Electromotive force slightly deviation will result in two current of electric and differs greatly, there will be time serious motor powered run, one
The situation that electric power generation runs.Need to increase by two current balance type adjusters for this, whole system uses a Voltage loop additional two
The mode of individual exciting current ring, the output of current balance type adjuster superposition respectively giving as encouraging at two exciting current rings
One compensation rate of magnetic system, to reach the purpose of two DC current balances.But no matter use a set of silicon controlled rectifier
Individually power supply or use the two identical silicon controlled rectifier parallel operations of set, all has that control loop is loaded down with trivial details, parameter coupling again
Miscellaneous problem.And owing to magnetic field inertia is big, low-response, elimination dynamic current deviation time low-response, be not suitable for weak-magnetic speed-regulating and
Frequently open braking, rotating occasion.
3, two armature of direct current motors are separate, use the two identical silicon controlled rectifiers of set to drive different electricity respectively
Machine, two covering device control systems use master & slave control, use 6 commutating phases, or use 12 commutating phases.Use 6 commutating phase modes,
Two covering devices wherein 1 set is arranged to master device, has a joint system of completely withering of electric current, speed dicyclo, another set of be set to from
Device, uses the pulsed operation of master device.After master device accepts speed preset and various control instruction, through processing, logical
Cross parallel communication interface, to transmitting pulse angle signal and each associated control signal in real time from device, make synchronize to touch from device
Send out the IGCT with master device same position；Using 12 commutating phase modes, two covering devices are by forming after rectifier transformer parallel connection
12 commutating phases, the most a set of be main, a set of for from, two covering devices are respectively adopted respective electric current loop, share 1 speed ring, 2
The parameter of electric current loop arranges identical, accepts identical given value of current instruction.
The mode of master & slave control is very suitable for the same load of tandem drive end to end of two motor shafts or by one pair
Input, single output speed reducer drive the less occasions in the gap that is rigidly connected such as same load；But two motors column distribution are divided
Two reductors Tong Guo not drive the bigger occasion in the gaps that are rigidly connected such as same loads, when gap is big the most to a certain extent, principal and subordinate
Motor speed cannot synchronize, and master-slave control method cannot ensure that again motor torque synchronizes, because starting moment overshoot problem principal and subordinate electricity
Machine torque is mutually exclusive, it is impossible to normally start.
Summary of the invention:
It is an object of the invention to overcome the deficiency of upper prior art, and provide a kind of high power DC electric machine double and drive
Silicon controlled rectifier；Mainly solve the motor of existing two armature of direct current motor series-feds existence, rectifier transformer, electricity
Cable, fairing components and parts electric pressure are multiplied, the control loop that two armature of direct current motor parallel operations exist is loaded down with trivial details,
Parameter coupling is complicated, dynamic responding speed slow, and master & slave control when two motors gap that is rigidly connected relatively big, because of start moment without
Method ensures that motor torque synchronizes, and principal and subordinate's motor torque is mutually exclusive cannot the normal problem such as startup.
The technical scheme is that the silicon controlled rectifier that a kind of high power DC electric machine is double and drives, its feature
Being, it is by rectifier transformer ZB1, rectifier transformer ZB2, the first main transmission DC speed regulator, the second main transmission DC speed regulation
Device, power of controlled silicon unit KK1, power of controlled silicon unit KK2, direct current generator M1, direct current generator M2 and excitation rectifier transformer
Device ZBL, excitation rectifier device form, rectifier transformer ZB1, rectifier transformer ZB2 respectively give power of controlled silicon unit KK1, can
Control silicon power cell KK2 provide power supply, and the first main transmission DC speed regulator, the second main transmission DC speed regulator control controlled respectively
Silicon power cell KK1, power of controlled silicon unit KK2 trigger pulse, and unit KK2 is whole for power of controlled silicon unit KK1, power of controlled silicon
Stream output is connected with direct current generator M1, direct current generator M2 by smoothing reactor PK1, smoothing reactor PK2 respectively, the first main biography
Dynamic DC speed regulator, the second main transmission DC speed regulator current feedback signal are taken respectively from main circuit current transformer LH1, electric current
Transformer LH2；Excitation rectifier device power supply is provided by exciting rectifier transformer ZBL, its output with connect after direct current generator M1,
Direct current generator M2 Exciting Windings for Transverse Differential Protection is connected；First main transmission DC speed regulator, power of controlled silicon unit KK1, direct current generator M1 and
Second main transmission DC speed regulator, power of controlled silicon unit KK2, direct current generator M2 separately constitute two independent set rotating speed, electric currents
Double loop system, and respectively by rectifier transformer ZB1, rectifier transformer ZB2 and smoothing reactor PK1, smoothing reactor PK2
Composition 12-phase rectification；Two cover systems use identical main transmission speed preset Vg, and velocity feedback is respectively adopted respective speed
Feedback；First main transmission DC speed regulator, the second main transmission DC speed regulator current feedback signal are respectively connected to current balance type and adjust
The positive and negative input of joint device LPT, current balance type adjuster LPT output is attached as the second main transmission DC speed regulator after amplitude limit
Acceleration gives, by regulating the balancing the load of two motors of velocity interpolation of the second main transmission DC speed regulator.
If two current of electric differences are bigger, employing carries out speed to direct current generator M2 and speeds or speed reduction side
Formula carries out compensated torque；Owing to two covering devices are each with speed ring, backlash impact in systems can be weakened, it is ensured that electricity
The normal startup of machine.
Consistent for ensureing the torque of two direct current generators, two motor excitations are connected by series connection；For ensureing weak magnetic effect,
Excitation uses strong triggering.
A kind of high power DC electric machine of the present invention is double and the silicon controlled rectifier that drives compared with the prior art
There is prominent substantive distinguishing features and marked improvement, solve the silicon controlled rectifier control that high power DC electric machine is double and drives
Mode problem processed, had both overcome the motor of two armature of direct current motor series-feds existence, cable, rectifier transformer, rectification dress
Put components and parts electric pressure to be multiplied problem, overcome again the control loop that two armature of direct current motor parallel operations of knowing clearly exist
Loaded down with trivial details, parameter coupling is complicated, the slow problem of dynamic responding speed, overcomes master & slave control simultaneously and is rigidly connected gap when two motors
Relatively big, cannot ensure that motor torque synchronizes because starting moment, the mutually exclusive problem that cannot normally start of principal and subordinate's motor torque.
Accompanying drawing illustrates:
Fig. 1 is the connection diagram of the present invention.
In figure, 1 main transmission speed preset Vg, 2 first main transmission DC speed regulators, 3 current balance type adjuster LPT, 4 second
Main transmission DC speed regulator, 5 rectifier transformer ZB1,6 current transformer LH1,7 power of controlled silicon unit KK1,8 rectifier transformers
ZB2,9 current transformer LH2,10 power of controlled silicon unit KK2,11 excitation rectifier devices, 12 exciting rectifier transformer ZBL, 13
Direct current generator M1,14 smoothing reactor PK1,15 direct current generator M2,16 smoothing reactor PK2.
Detailed description of the invention:
In order to be more fully understood that and implement, provide specific embodiment below in conjunction with the accompanying drawings and describe the present invention in detail；Lifted real
Execute example to be only used for explaining the present invention, be not intended to limit the scope of the present invention.
Embodiment 1, sees Fig. 1, as a example by improving planisher mandrel movement limiting power；Become by rectifier transformer ZB1 5, rectification
Depressor ZB2 8 provides power supply, by the first main transmission to respectively power of controlled silicon unit KK1 7, power of controlled silicon unit KK2 10
DC speed regulator the 2, second main transmission DC speed regulator 4 controls power of controlled silicon unit KK1 7, power of controlled silicon unit respectively
KK2 10 triggers pulse, and power of controlled silicon unit KK1 7, power of controlled silicon unit KK2 10 rectification output are respectively by flat ripple electricity
Anti-device PK1 14, smoothing reactor PK2 16 are connected with direct current generator M1 13, direct current generator M2 15, and the first main transmission direct current is adjusted
Speed device the 2, second main transmission DC speed regulator 4 current feedback signal is taken respectively from main circuit current transformer LH1 6, Current Mutual Inductance
Device LH2 9；Excitation rectifier device 11 power supply is provided by exciting rectifier transformer ZBL 12, its output with connect after direct current generator
M1 13, direct current generator M2 15 Exciting Windings for Transverse Differential Protection are connected；First main transmission DC speed regulator 2, power of controlled silicon unit KK1 7, straight
Stream motor M1 13 and the second main transmission DC speed regulator 4, power of controlled silicon unit KK2 10, direct current generator M2 15 group respectively
Become two independent set rotating speed, current double closed-loop systems, and respectively by rectifier transformer ZB1 5, rectifier transformer ZB2 8 peace
Wave reactor PK1 14, smoothing reactor PK2 16 form 12-phase rectification；Power cell uses domestic Large Copacity controllable silicon, by
Import low capacity DC speed regulator triggers and controls, and is commonly called as " small push big" "；Two cover systems use identical main transmission speed preset
Vg1, velocity feedback is respectively adopted respective velocity feedback；First main transmission DC speed regulator the 2, second main transmission DC speed regulator
4 current feedback signals are respectively connected to the positive and negative input of current balance type adjuster LPT 3, and current balance type adjuster LPT 3 exports
Give as the second main transmission DC speed regulator 4 addition speed after amplitude limit, by regulating the second main transmission DC speed regulator 4
The balancing the load of two motors of velocity interpolation.
A kind of high power DC electric machine of the present invention pair the silicon controlled rectifier driven, be used for improving planisher
Mandrel movement limiting power, by increasing a rectifier transformer, increasing the electric control gear that a set of and former plug electrical system is the same, uses
Two reductors of 2 373kw DC motor Driver, two reductor mounted on top drive middle tooth bar to pass by upper and lower Double-gear
Dynamic, make planisher mandrel movement limiting power be brought up to 50 tons by 27 tons.Two set fairings are by rectifier transformer, paralleing reactor group
Become 12 commutating phases.Control mode uses master & slave control, and the core bar device speed regulator that old core bar device speed regulator is main, new is
From, the given and speed ring passage of master governor shares, and principal current is given send master and slave electric current loop, to ensure two covering devices simultaneously
Electric current is consistent and balances.Use two motors, fairing separately constitutes respective rotating speed to two sets, current double closed-loop system parallel connection makes
Use the velocity feedback of oneself, new motor, old current of electric to send into a current balance type adjuster respectively with, two motors to compare
Relatively amplify, the output of adjuster is given as new motor addition speed through amplitude limit, by regulating the velocity interpolation two of new motor
The balancing the load of platform motor.Both the bottleneck having solved during light-wall pipe produces the planisher plug transmission restraint moment run into not enough is asked
Topic, the problem also solving plug motor high load with small power, achieve better effects.
Claims (1)
1. a high power DC electric machine is double and the silicon controlled rectifier that drives, it is characterised in that it is by rectifier transformer ZB1
(5), rectifier transformer ZB2(8), the first main transmission DC speed regulator (2), the second main transmission DC speed regulator (4), controllable silicon merit
Rate unit KK1(7), power of controlled silicon unit KK2(10), direct current generator M1(13), direct current generator M2(15) and excitation rectification
Transformer ZBL(12), excitation rectifier device (11) composition, rectifier transformer ZB1(5), rectifier transformer ZB2(8) respectively give can
Control silicon power cell KK1(7), power of controlled silicon unit KK2(10) power supply, the first main transmission DC speed regulator (2), second are provided
Main transmission DC speed regulator (4) controls power of controlled silicon unit KK1(7 respectively), power of controlled silicon unit KK2(10) trigger arteries and veins
Punching, power of controlled silicon unit KK1(7), power of controlled silicon unit KK2(10) rectification output is respectively by smoothing reactor PK1
(14), smoothing reactor PK2(16) with direct current generator M1(13), direct current generator M2(15) be connected, the first main transmission DC speed regulation
Device (2), the second main transmission DC speed regulator (4) current feedback signal are taken respectively from main circuit current transformer LH1(6), electric current
Transformer LH2(9)；Excitation rectifier device (11) power supply is by exciting rectifier transformer ZBL(12) provide, its output with connect after
Direct current generator M1(13), direct current generator M2(15) Exciting Windings for Transverse Differential Protection be connected；First main transmission DC speed regulator (2), power of controlled silicon
Unit KK1(7), direct current generator M1(13) and the second main transmission DC speed regulator (4), power of controlled silicon unit KK2(10), straight
Stream motor M2(15) separately constitute two independent set rotating speed, current double closed-loop systems, and respectively by rectifier transformer ZB1(5),
Rectifier transformer ZB2(8) and smoothing reactor PK1(14), smoothing reactor PK2(16) composition 12-phase rectification；Two cover systems
Use identical main transmission speed preset Vg(1), velocity feedback is respectively adopted respective velocity feedback；First main transmission direct current is adjusted
Speed device (2), the second main transmission DC speed regulator (4) current feedback signal be respectively connected to current balance type adjuster LPT(3) just,
Negative input end, current balance type adjuster LPT(3) export after amplitude limit as the second main transmission DC speed regulator (4) addition speed
Given, by regulating the balancing the load of two motors of velocity interpolation of the second main transmission DC speed regulator (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410134245.3A CN103929103B (en) | 2014-04-04 | 2014-04-04 | A kind of high power DC electric machine pair the silicon controlled rectifier driven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410134245.3A CN103929103B (en) | 2014-04-04 | 2014-04-04 | A kind of high power DC electric machine pair the silicon controlled rectifier driven |
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| Publication Number | Publication Date |
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| CN103929103A CN103929103A (en) | 2014-07-16 |
| CN103929103B true CN103929103B (en) | 2016-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410134245.3A Expired - Fee Related CN103929103B (en) | 2014-04-04 | 2014-04-04 | A kind of high power DC electric machine pair the silicon controlled rectifier driven |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105871271A (en) * | 2015-01-21 | 2016-08-17 | 湖北欧安电气股份有限公司 | Controllable silicon DC servo speed regulating device |
| CN110995066B (en) * | 2019-12-21 | 2021-04-13 | 中国特种设备检测研究院 | Double-servo motor control method for amusement facility track detection device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3935520A (en) * | 1974-07-24 | 1976-01-27 | General Electric Company | DC motor regulator |
| CN2035937U (en) * | 1988-08-23 | 1989-04-12 | 杭州玻璃钢轴流风机厂 | Speed regulating device with series stage of silicon control |
| CN2092832U (en) * | 1991-03-07 | 1992-01-08 | 王世宗 | Ac speed adjusting device for cascade of double motor |
| CN2335308Y (en) * | 1997-12-18 | 1999-08-25 | 张国义 | Double-motor equalized torque automatic converting controller for adhesive tape machine |
| CN2420786Y (en) * | 2000-01-01 | 2001-02-21 | 齐宇庆 | Speed regulator for high voltage large power motor |
| CN201312265Y (en) * | 2008-10-21 | 2009-09-16 | 烟台鲁宝钢管有限责任公司 | Silicon-controlled rectifying device |
| CN202772824U (en) * | 2012-09-13 | 2013-03-06 | 贵州电力试验研究院 | Double motor parallel operation load balancing control device |
-
2014
- 2014-04-04 CN CN201410134245.3A patent/CN103929103B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3935520A (en) * | 1974-07-24 | 1976-01-27 | General Electric Company | DC motor regulator |
| CN2035937U (en) * | 1988-08-23 | 1989-04-12 | 杭州玻璃钢轴流风机厂 | Speed regulating device with series stage of silicon control |
| CN2092832U (en) * | 1991-03-07 | 1992-01-08 | 王世宗 | Ac speed adjusting device for cascade of double motor |
| CN2335308Y (en) * | 1997-12-18 | 1999-08-25 | 张国义 | Double-motor equalized torque automatic converting controller for adhesive tape machine |
| CN2420786Y (en) * | 2000-01-01 | 2001-02-21 | 齐宇庆 | Speed regulator for high voltage large power motor |
| CN201312265Y (en) * | 2008-10-21 | 2009-09-16 | 烟台鲁宝钢管有限责任公司 | Silicon-controlled rectifying device |
| CN202772824U (en) * | 2012-09-13 | 2013-03-06 | 贵州电力试验研究院 | Double motor parallel operation load balancing control device |
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| CN103929103A (en) | 2014-07-16 |
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