CN106300382B - Control system for In The Sub-mergedfurnace of The Ferroalloys low-voltage compensation apparatus - Google Patents
Control system for In The Sub-mergedfurnace of The Ferroalloys low-voltage compensation apparatus Download PDFInfo
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- CN106300382B CN106300382B CN201610759681.9A CN201610759681A CN106300382B CN 106300382 B CN106300382 B CN 106300382B CN 201610759681 A CN201610759681 A CN 201610759681A CN 106300382 B CN106300382 B CN 106300382B
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- voltage
- mergedfurnace
- ferroalloys
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- transformer
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
- H02J3/1821—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators
- H02J3/1835—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control
- H02J3/1842—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control wherein at least one reactive element is actively controlled by a bridge converter, e.g. active filters
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/20—Active power filtering [APF]
Abstract
The invention discloses the control systems for In The Sub-mergedfurnace of The Ferroalloys low-voltage compensation apparatus, including control panel, main control computer, PLC, APF controller, compensating instruction generator, ammeter, power factor transmitter, voltmeter, thermometer, thermistor, current transformer, ore heat furnace transformer, voltage transformer, cooling fan, compensating electric capacity, relay and photoisolator；The beneficial effects of the present invention are: the control system stable connection of the low-voltage compensation apparatus, using simple, control system can real-time detection feedback mineral hot furnace in each supplemental characteristic, and it is controlled by control system and carries out real-time compensation, dynamic is realized to compensate, control system has double compensation capacitor, have to target compensation faster corresponding, and it can accomplish that compensating power continuously adjusts, APF controller has stronger real-time control capability, the requirement of processing and the system control of digital signal can be met simultaneously, improve the precision of compensation control, stability is strong when work, it is suitble to promote the use of.
Description
Technical field
The present invention relates to the control systems of compensation device, particularly for the control of In The Sub-mergedfurnace of The Ferroalloys low-voltage compensation apparatus
System belongs to electrical equipment control field.
Background technique
Mineral hot furnace is a kind of electric furnace widely used, pattern is numerous, and ferroalloy smelting, matte are used in metallurgical industry
Deng its working principle is that passing through coordination electrode end and furnace charge in the crucible that power electrode insertion is made of furnace wall and furnace charge
Between distance generate electric arc, melt furnace charge after converting electrical energy into thermal energy, formed reduction reaction needed for hot environment, simultaneously
The a large amount of thermal energy absorbed needed for supply response, ultimately form product.
In place of control system currently used for In The Sub-mergedfurnace of The Ferroalloys low-voltage compensation apparatus comes with some shortcomings, it is not available for reality
When detection In The Sub-mergedfurnace of The Ferroalloys in each supplemental characteristic, Data Detection have the regular hour delay, cause compensation control it is not smart
Really, and real-time compensation can not be realized, single compensating electric capacity response speed is slower, and compensation rate is slower, and compensation can not be accomplished continuously to adjust
Section, the existing control system for In The Sub-mergedfurnace of The Ferroalloys low-voltage compensation apparatus only can be used the setting of manual operation control panel and mend
Degree of repaying does not have automatic compensating instruction generator, and the degree of automation is low, is not suitable for large size ferroalloy smelting and uses.
Summary of the invention
The object of the invention is that providing to solve the above-mentioned problems and being used for In The Sub-mergedfurnace of The Ferroalloys low-voltage compensation apparatus
Control system.
The present invention is through the following technical solutions to achieve the above objectives: be used for the control of In The Sub-mergedfurnace of The Ferroalloys low-voltage compensation apparatus
System processed, including control panel, main control computer, PLC, APF controller, compensating instruction generator, ammeter, power factor become
Send device, voltmeter, thermometer, thermistor, current transformer, ore heat furnace transformer, voltage transformer, cooling fan, compensation
Capacitor, relay and photoisolator；The control panel is electrically connected to main control computer, and the main control computer and control
Panel processed has three-level priority assignation, and the main control computer is connected with PLC by data/address bus, and the side PLC is successively electric
Property is connected with thermometer, ammeter, power factor transmitter and voltmeter, and the thermometer other side is connected with heat by electric wire
Quick resistance, and the thermometer shows furnace temperature according to the resistance value of thermistor, and the thermometer generates and gets over line or lowest limit initiation
Alarm；The ammeter other side is connected with current transformer by electric wire, and the voltmeter other side is connected with by electric wire
Voltage transformer, and the parameter in the thermistor, current transformer and voltage transformer real-time detection In The Sub-mergedfurnace of The Ferroalloys
Data；The power factor transmitter other side is successively electrically connected to current transformer and voltage transformer, and the electric current
Mutual inductor and the voltage transformer other side are by being wired to ore heat furnace transformer；The main control computer is total by data
Line is connected with APF controller, and the main control computer is connect with PLC, APF controller using RS485 bus, the APF control
Device processed has stronger real-time control capability, and the APF controller downside is connected with compensating instruction generator by data/address bus,
And the compensating instruction generator generates compensating instruction in automatically controlling compensation process；The APF controller side electrically connects
It is connected to photoisolator, and the photoisolator provides isolation voltage, the photoisolator side is electrically connected with up and down
Double relay, the compensating electric capacity is by being wired to relay, and the compensating electric capacity is double compensation capacitor, it is described cold
But fan is singly connected with relay by being wired to another relay, the cooling fan and compensating electric capacity.
Further, in order to reach can point different rights rank control low-voltage compensation apparatus different limits, the master control
Computer and control panel have three-level priority assignation.
Further, in order to reach data and instruct the rapidity of transmission, the main control computer and PLC, APF controller
It is connected using RS485 bus.
Further, in order to reach the requirement of processing and the system control that can meet digital signal simultaneously, APF control
Device has stronger real-time control capability.
Further, it is higher than maximum temperature or lower than the generation of minimum temperature limit value to reach temperature in In The Sub-mergedfurnace of The Ferroalloys
Buzzing alarm, the thermometer can show furnace temperature according to the resistance value of thermistor, and the thermometer draws in more line or the lowest limit
Hair alarm.
Further, in order to which the variation for reaching to target compensation has faster response, the compensating electric capacity is double compensation electricity
Hold.
Further, in order to reach the automatic control for realizing low-voltage compensation apparatus, the compensating instruction generator can be certainly
Compensating instruction is generated in dynamic control compensation process.
Further, be convenient for inhibiting surge, lightning stroke and interference altogether to reach, the photoisolator can provide every
Ionization voltage.
Further, it is independent of each other to reach compensation control and cooling fan control, the cooling fan and compensation electricity
Rong Jun is singly connected with relay.
Further, dynamic compesated control, the thermistor, Current Mutual Inductance are realized to In The Sub-mergedfurnace of The Ferroalloys in order to reach
Device and voltage transformer can supplemental characteristics in real-time detection In The Sub-mergedfurnace of The Ferroalloys.
The beneficial effects of the present invention are: the control system stable connection of the low-voltage compensation apparatus, uses simple, control system
Can real-time detection feedback mineral hot furnace in each supplemental characteristic, and by control system control carry out real-time compensation, realize dynamically
Compensation, control system have double compensation capacitor, have faster accordingly to target compensation, and can accomplish that compensating power continuously adjusts,
APF controller has stronger real-time control capability, can meet the requirement of processing and the system control of digital signal simultaneously, improve
The precision of compensation control, stability is strong when work, is suitble to promote the use of.
Detailed description of the invention
Fig. 1 is overall structure of the present invention；
Fig. 2 is present system program flow diagram；
In figure: 1, control panel, 2, main control computer, 3, PLC, 4, APF controller, 5, compensating instruction generator, 6, electricity
Flow table, 7, power factor transmitter, 8, voltmeter, 9, thermometer, 10, thermistor, 11, current transformer, 12, mineral hot furnace change
Depressor, 13, voltage transformer, 14, cooling fan, 15, compensating electric capacity, 16, relay, 17, photoisolator.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It is used for the control system of In The Sub-mergedfurnace of The Ferroalloys low-voltage compensation apparatus, including control panel 1, master control referring to FIG. 1-2,
Computer 2, PLC3, APF controller 4, compensating instruction generator 5, ammeter 6, power factor transmitter 7, voltmeter 8, temperature
Count 9, thermistor 10, current transformer 11, ore heat furnace transformer 12, voltage transformer 13, cooling fan 14, compensating electric capacity
15,17 device of relay 16 and Phototube Coupling；The control panel 1 is electrically connected to main control computer 2, and the main control computer
2 and control panel 1 there is three-level priority assignation, the main control computer 2 is connected with PLC3, the PLC3 mono- by data/address bus
Side is successively electrically connected with thermometer 9, ammeter 6, power factor transmitter 7 and voltmeter 8, and 9 other side of thermometer is logical
It crosses electric wire and is connected with thermistor 10, and the thermometer 9 can show furnace temperature, and the temperature according to the resistance value of thermistor 10
Meter 9 can produce more line or lowest limit alarm；6 other side of ammeter is connected with current transformer 11, the voltage by electric wire
8 other side of table is connected with voltage transformer 13, and the thermistor 10, current transformer 11 and voltage transformer by electric wire
13 can supplemental characteristic in real-time detection In The Sub-mergedfurnace of The Ferroalloys；7 other side of power factor transmitter is successively electrically connected to
Current transformer 11 and voltage transformer 13, and the current transformer 11 and 13 other side of voltage transformer are connected by electric wire
It is connected to ore heat furnace transformer 12；The main control computer 2 is connected with APF controller 4 by data/address bus, and the master control calculates
Machine 2 is connect with PLC3, APF controller 4 using RS485 bus, and the APF controller 4 has stronger real-time control capability, institute
It states and compensating instruction generator 5 is connected with by data/address bus on the downside of APF controller 4, and the compensating instruction generator 5 can be certainly
Compensating instruction is generated in dynamic control compensation process；4 side of APF controller is electrically connected with photoisolator 17, and described
Photoisolator 17 can provide isolation voltage, and 17 side of photoisolator is electrically connected with double relay 16 up and down, described
Compensating electric capacity 15 is by being wired to relay 16, and the compensating electric capacity 15 is double compensation capacitor, the cooling fan 14
By being wired to another relay 16, the cooling fan 14 and compensating electric capacity 15 are singly connected with relay 16.
As a kind of technical optimization scheme of the invention: there is three-level permission to set for the main control computer 2 and control panel 1
It sets；The main control computer 2 is connect with PLC3, APF controller 4 using RS485 bus；The APF controller 4 has stronger
Real-time control capability；The thermometer 9 can show furnace temperature according to the resistance value of thermistor 10, and the thermometer 9 in more line or
When the lowest limit, cause alarm；The compensating electric capacity 15 is double compensation capacitor；The compensating instruction generator 5 can be mended automatically controlling
Compensating instruction is generated during repaying；The photoisolator 17 can provide isolation voltage；The cooling fan 14 and compensating electric capacity
15 are singly connected with relay 16；The thermistor 10, current transformer 11 and voltage transformer 13 can real-time detection iron
Supplemental characteristic in alloy mineral hot furnace.
In the use of the present invention, passing through control panel and main control computer first under In The Sub-mergedfurnace of The Ferroalloys operating status
The compensativity and temperature alarming upper lower limit value of highest authority setting low-voltage compensation apparatus；Secondly in In The Sub-mergedfurnace of The Ferroalloys operational process
Each parameter data values in middle thermistor, current transformer and voltage transformer real-time detection In The Sub-mergedfurnace of The Ferroalloys, and by data
Value, which is transmitted to thermometer, ammeter and voltmeter and shows and be transmitted to main control computer, compares setting value, when detection temperature value is high
In maximum temperature limit value or it is lower than minimum temperature limit value, generates buzzing alarm；It then can be according to the parameter data values of real-time detection
The operation of artificial control low-voltage compensation apparatus produces compensating instruction by compensating instruction generator under automatic control state automatically；
Finally since APF controller real-time control capability with higher can meet the processing of digital signal and wanting for system control simultaneously
It asks, the disconnection or contact of relay can be controlled according to the compensating instruction of compensating instruction generator, and then control compensating electric capacity dynamic
Compensation and the operation of cooling fan, to realize that quick continuous response and control dynamic compensate.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (5)
1. being used for the control system of In The Sub-mergedfurnace of The Ferroalloys low-voltage compensation apparatus, it is characterised in that: including control panel (1), master control
Computer (2), PLC(3), APF controller (4), compensating instruction generator (5), ammeter (6), power factor transmitter (7),
Voltmeter (8), thermometer (9), thermistor (10), current transformer (11), ore heat furnace transformer (12), voltage transformer
(13), cooling fan (14), compensating electric capacity (15), relay (16) and photoisolator (17)；The control panel (1) is electrically
It is connected to main control computer (2), the main control computer (2) is connected with PLC(3 by data/address bus), the PLC(3)
Side is successively electrically connected with thermometer (9), ammeter (6), power factor transmitter (7) and voltmeter (8), the thermometer
(9) other side is connected with thermistor (10) by electric wire, and ammeter (6) other side is connected with Current Mutual Inductance by electric wire
Device (11), voltmeter (8) other side are connected with voltage transformer (13) by electric wire, the power factor transmitter (7)
The other side is respectively and electrically connected to current transformer (11) and voltage transformer (13), and the current transformer (11) and voltage
Mutual inductor (13) other side is by being wired to ore heat furnace transformer (12)；The main control computer (2) is total by data
Line is connected with APF controller (4), is connected with compensating instruction generator (5) by data/address bus on the downside of the APF controller (4),
APF controller (4) side is electrically connected with photoisolator (17), and photoisolator (17) side is electrically connected with
Relay (16), for the compensating electric capacity (15) by being wired to relay (16), the cooling fan (14) passes through electric wire
It is connected to another relay (16)；
The APF controller (4) has real-time control capability；The thermometer (9) shows according to the resistance value of thermistor (10)
Furnace temperature, and the thermometer (9) causes alarm when generating and getting over line or the lowest limit；The compensating electric capacity (15) is double compensation capacitor；
The compensating instruction generator (5) generates compensating instruction in automatically controlling compensation process.
2. the control system according to claim 1 for In The Sub-mergedfurnace of The Ferroalloys low-voltage compensation apparatus, it is characterised in that: institute
Stating main control computer (2) and control panel (1) has three-level priority assignation.
3. the control system according to claim 2 for In The Sub-mergedfurnace of The Ferroalloys low-voltage compensation apparatus, it is characterised in that: institute
State main control computer (2) and PLC(3), APF controller (4) using RS485 bus connect.
4. the control system according to claim 1 for In The Sub-mergedfurnace of The Ferroalloys low-voltage compensation apparatus, it is characterised in that: institute
It states photoisolator (17) and isolation voltage is provided.
5. the control system according to claim 1 for In The Sub-mergedfurnace of The Ferroalloys low-voltage compensation apparatus, it is characterised in that: institute
State the parameter number in thermistor (10), current transformer (11) and voltage transformer (13) real-time detection In The Sub-mergedfurnace of The Ferroalloys
According to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610759681.9A CN106300382B (en) | 2016-08-30 | 2016-08-30 | Control system for In The Sub-mergedfurnace of The Ferroalloys low-voltage compensation apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610759681.9A CN106300382B (en) | 2016-08-30 | 2016-08-30 | Control system for In The Sub-mergedfurnace of The Ferroalloys low-voltage compensation apparatus |
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| Publication Number | Publication Date |
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| CN106300382A CN106300382A (en) | 2017-01-04 |
| CN106300382B true CN106300382B (en) | 2019-01-15 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107943158B (en) * | 2017-12-11 | 2020-01-07 | 合肥维博自动化科技有限公司 | Intelligent heating control card capable of adaptively adjusting power output and control method thereof |
| CN114518732A (en) * | 2022-02-10 | 2022-05-20 | 宁夏瑞资联实业有限公司 | Furnace control system of DCS submerged arc furnace |
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| CN102354993A (en) * | 2011-09-28 | 2012-02-15 | 天津理工大学 | Arc furnace power quality controller based on programmable logic controller (PLC) |
| CN203387188U (en) * | 2013-07-16 | 2014-01-08 | 四川晨龙航天电器设备有限公司 | Automatic low-voltage reactive compensation controller at secondary side of submerged arc furnace |
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