CN208337166U - Power factor of ore furnace acquisition control system - Google Patents
Power factor of ore furnace acquisition control system Download PDFInfo
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- CN208337166U CN208337166U CN201820674724.8U CN201820674724U CN208337166U CN 208337166 U CN208337166 U CN 208337166U CN 201820674724 U CN201820674724 U CN 201820674724U CN 208337166 U CN208337166 U CN 208337166U
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- power factor
- furnace
- plc controller
- control system
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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
- 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
- Y02E40/30—Reactive power compensation
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Abstract
The utility model relates to ore furnace low-pressure side reactive compensation system fields, in particular to the acquisition control of power factor in reactive-load compensator.Power factor of ore furnace acquisition control system, including PLC controller, the PLC controller is connected with power factor converter, IGBT group module and host computer, which is used to control IGBT group module and carries out switching compensation, receive the data of power factor converter and data in furnace are uploaded to host computer；The power factor converter is connected with electric quantity acquisition module, for acquiring data in mineral hot furnace furnace.The power factor of ore furnace acquisition control system realizes the automatic collection and control of power factor of ore furnace acquisition control system, monitored, fed back simultaneously in real time the purpose of data in mineral hot furnace, the stabilization for entering furnace power that ensure that the mineral hot furnace during input control of inactivity compensation simultaneously, sufficiently compensates for the deficiency of traditional reactive compensation system.
Description
Technical field
The utility model relates to ore furnace low-pressure side reactive compensation system fields, in particular in reactive-load compensator power because
Several acquisition controls.
Background technique
Mineral hot furnace is a kind of huge industrial furnace of power consumption, and the structure and work characteristics of mineral hot furnace determine transformer
In idle operating status, short online a large amount of reactive power consumption and resulting significantly operating voltage drop are to cause for many places
The main reason for low yield, high power consumption.The low-voltage and high-current feature of short net determines that short net can generate a large amount of reactive power,
Reactive power can seriously occupy transformer load, constrain transformer and convey active ability, cause ore heat furnace transformer power
Factor is lower, and generally all between 0.6~0.8, lower power factor not only declines the efficiency of transformer, generates a large amount of
Idle work can also be added additional electric power fine by power department, increase three alternate electric power imbalances, lead to efficiency
Lowly, power consumption increases；Along with the short network arrangements length of ore heat furnace transformer differs, three-phase power imbalance caused by smelting and
It is idle caused by smelting electric arc variation to circulate on ore heat furnace transformer and short net, supply network, exacerbate entire mineral hot furnace
Reactive loss.In order to reduce the loss of power grid, power supply quality is improved, power supply bureau requires the power factor of electricity consumption enterprise will be
0.9 or more, otherwise will at electricity consumption enterprise to fine heavily.Power factor is relatively low simultaneously, can also reduce the inlet wire electricity of mineral hot furnace
Pressure, influences the smelting of calcium carbide.Therefore large-capacity ore furnace will install reactive power compensator additional both at home and abroad at present, to improve mineral hot furnace
Power factor.
Existing current power factor acquisition and control are all made of independent three single-phase meters, because cannot be with system collection
At without then being needed to carry out parameter setting onto compensator, to behaviour if you need to carry out artificial compensation's investment after stopping by PC control
It is excessively high to make technical requirements, especially site operation personnel, is unfavorable for flexibly controlling.Current investment Current Voltage cannot be fed back simultaneously
The actual conditions of data.
Utility model content
The main purpose of the utility model is to provide a kind of power factor of ore furnace acquisition control systems, it is intended to realize mine
The automatic collection and control of hot stove power factor acquisition control system, while being monitored in real time, feeding back data in mineral hot furnace
Purpose.
The technical solution of the utility model is to provide a kind of power factor of ore furnace acquisition control system, including PLC control
Device, the PLC controller are connected with power factor converter, IGBT group module and host computer, which is used for
Control IGBT group module carry out capacitor switching compensation, receive power factor converter data and will be in data in furnace
Reach host computer；The power factor converter is connected with electric quantity acquisition module, for acquiring data in mineral hot furnace furnace.
Further, the electric quantity acquisition module is transmitted using high pressure CT/PT mutual inductor to obtain high voltage side current, voltage
Data.
Further, the high voltage side current of the electric quantity acquisition module acquisition, voltage data turn through power factor converter
It changes and is exported with power factor to PLC controller.
Further, the power factor controlling IGBT group that the PLC controller is exported according to power factor converter
Module carries out capacitor switching control.
Further, the PLC controller receives the power factor and IGBT group module of power factor converter
Switching feedback information and be uploaded to host computer and be monitored.
Further, if the host computer receives feedback data and exceeds setting range, which can send alarm command
To the PLC controller.
It further, further include alarm module, PLC controller connects the alarm module, which receives upper
The alarm module is controlled after the alarm command that machine is sent issues alarm signal.
The beneficial effects of the utility model are: the power factor of ore furnace acquisition control system realize mineral hot furnace power because
The automatic collection and control of number acquisition control system, while being monitored, being fed back in real time the purpose of data in mineral hot furnace, it protects simultaneously
The stabilization for entering furnace power for having demonstrate,proved the mineral hot furnace during input control of inactivity compensation, sufficiently compensates for traditional reactive compensation
The deficiency of system.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model power factor of ore furnace acquisition control system；
Drawing reference numeral: 10- electric quantity acquisition module, 20- power factor converter, 30-PLC controller, 40- host computer, 50-
IGBT group module, 60- alarm module.
Specific embodiment
As shown in Figure 1, the technical solution of the utility model is to provide a kind of power factor of ore furnace acquisition control system, packet
Include PLC controller 30, the PLC controller 30 is connected with power factor converter 20, IGBT group module 50 and upper
Machine 40, the PLC controller 30 carry out capacitor switching compensation for controlling IGBT group module 50, receive power factor turn
The data of parallel operation 20 and data in furnace are uploaded to host computer 40；The power factor converter 20 is connected with electric quantity acquisition mould
Block 10, for acquiring data in mineral hot furnace furnace.Data-signal includes into furnace power, molten bath size, three-phase current in the furnace
(voltage) and three-phase equilibrium degree.
Wherein the electric quantity acquisition module 10 is transmitted using high pressure CT/PT mutual inductor to obtain high voltage side current, voltage number
According to.The electric quantity acquisition module 10 obtain high voltage side current, voltage data through 20 internal module of power factor converter convert with
Power factor is exported to PLC controller 30.The power factor that wherein PLC controller 30 is exported according to power factor converter 20 is big
Small control IGBT group module 50 is put into or is cut off control.
Specific judgement are as follows: when PLC controller 30 receives the power factor of the output of power factor converter 20 less than 0.85
When, PLC controller 30 assigns instruction to IGBT group module 50, assigns instruction execution investment electricity to corresponding investment circuit
Container operation continues capacitor all the way under investment if power factor deficiency, until power factor is greater than 0.9 or is equal to 0.9,
Wherein when power factor=0.9, PLC controller 30 stops sending investment capacitor instruction to IGBT group module 50；Work as function
When rate factor > 0.91, if there is investment capacitor number before, PLC controller 30 sends to IGBT group module 50 and cuts off
Capacitor instruction, until power factor is equal to 0.9.
Wherein, the PLC controller 30 receives the power factor of power factor converter 20, IGBT group module 50
Host computer 40 is uploaded to by Ethernet after switching feedback to be monitored.Wherein system further includes alarm module 60, the alarm mould
Block is connect with PLC controller, if when the received feedback data of host computer 40 exceeds setting range, which can send alarm
It instructs to the PLC controller 30, PLC controller 30 controls alarm module 60 after receiving the alarm command that host computer 40 is sent
Issue alarm signal.
When issuing capacitor investment instruction, will be judged by PLC controller 30, the feeder number currently having been put into
With remaining plus number, if feedback data is all put into, PLC controller 30 will issue prompt information by host computer,
Inform operator, while in normal operation, PLC controller 30 sends feedback information to host computer 40, by host computer
The case where 40 monitoring put into the switch temperature in circuits, voltage, electric current, refers to sending in case of the case where exceeding safe range
It enables and allows PLC controller 30 to cut off current loop while putting into capacitor loops new all the way, and host computer 40 can send alarm
It instructs to the PLC controller 30.When carrying out idle capacitor investment, detected at any time by power system when data in forehearth
Variation, if enter furnace power increase it is excessive cause in furnace molten bath to become, alarm module 60 will also be sent a warning message, and remind operation
Person adjusts the electric current of electrode and the insertion depth of voltage and electric grade, and the reactive compensation system is by data in the furnace after reactive compensation
Use is presented to by host computer 40 including entering the supplemental characteristics such as furnace power, molten bath size, three-phase current (voltage), three-phase equilibrium degree
Family provides foundation to mineral hot furnace operation after putting into reactive compensation for user, can also carry out with mineral hot furnace control system online
Communication enters furnace power, voltage, electric current with adjust mineral hot furnace, to realize the automatic control of mineral hot furnace.In system operation
The self-inspection data of generation and current 50 data of IGBT group module are put into 30 director data register of PLC controller, are passed through
Ethernet is sent to host computer 40, is monitored in real time by host computer 40 and is analyzed.
The power factor of ore furnace acquisition control system solves the single power factor of ore furnace acquisition control system of tradition
The shortcomings that system, only simply pursues the promotion of power factor, and the power factor of ore furnace acquisition control system realizes mine heat
The automatic collection and control of furnace power factor acquisition control system, while being monitored, being fed back in real time the mesh of data in mineral hot furnace
, while ensure that the stabilization for entering furnace power of the mineral hot furnace during input control of inactivity compensation, sufficiently compensate for biography
The deficiency of system reactive compensation system.
Claims (7)
1. power factor of ore furnace acquisition control system, which is characterized in that including PLC controller, the PLC controller is connected with
Power factor converter, IGBT group module and host computer, the PLC controller is for controlling the progress of IGBT group module
Capacitor switching compensation receives the data of power factor converter and data in furnace is uploaded to host computer；The power because
Number converter is connected with electric quantity acquisition module, for acquiring data in mineral hot furnace furnace.
2. power factor of ore furnace acquisition control system as described in claim 1, which is characterized in that the electric quantity acquisition module
It is transmitted using high pressure CT/PT mutual inductor to obtain high voltage side current, voltage data.
3. power factor of ore furnace acquisition control system as claimed in claim 2, which is characterized in that the electric quantity acquisition module
The high voltage side current of acquisition, voltage data are converted through power factor converter and are exported with power factor to PLC controller.
4. power factor of ore furnace acquisition control system as claimed in claim 3, which is characterized in that the PLC controller root
Capacitor switching control is carried out according to the power factor controlling IGBT group module of power factor converter output.
5. power factor of ore furnace acquisition control system as described in claim 1, which is characterized in that the PLC controller connects
It receives the power factor of power factor converter and the capacitor switching feedback information of IGBT group module and is uploaded to upper
Machine is monitored.
6. power factor of ore furnace acquisition control system as claimed in claim 5, which is characterized in that the host computer receives anti-
If presenting data exceeds setting range, which can send alarm command to the PLC controller.
7. power factor of ore furnace acquisition control system as claimed in claim 6, which is characterized in that it further include alarm module,
PLC controller connects the alarm module, which controls the alarm mould after receiving the alarm command that host computer is sent
Block issues alarm signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820674724.8U CN208337166U (en) | 2018-05-07 | 2018-05-07 | Power factor of ore furnace acquisition control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820674724.8U CN208337166U (en) | 2018-05-07 | 2018-05-07 | Power factor of ore furnace acquisition control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208337166U true CN208337166U (en) | 2019-01-04 |
Family
ID=64776879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820674724.8U Expired - Fee Related CN208337166U (en) | 2018-05-07 | 2018-05-07 | Power factor of ore furnace acquisition control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208337166U (en) |
-
2018
- 2018-05-07 CN CN201820674724.8U patent/CN208337166U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190104 Termination date: 20210507 |
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| CF01 | Termination of patent right due to non-payment of annual fee |