CN204156532U - Low voltage dynamic reactive-power compensation system - Google Patents
Low voltage dynamic reactive-power compensation system Download PDFInfo
- Publication number
- CN204156532U CN204156532U CN201420268794.5U CN201420268794U CN204156532U CN 204156532 U CN204156532 U CN 204156532U CN 201420268794 U CN201420268794 U CN 201420268794U CN 204156532 U CN204156532 U CN 204156532U
- Authority
- CN
- China
- Prior art keywords
- module
- control module
- power compensation
- low voltage
- compensation system
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
-
- 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
- Y02E40/50—Arrangements for eliminating or reducing asymmetry in polyphase networks
Abstract
The utility model relates to reactive power compensation field, is low voltage dynamic reactive-power compensation system, and object is to provide a kind of device carrying out balance adjustment reactive power compensation.Low voltage dynamic reactive-power compensation system, connect mineral hot furnace, three-phase electrode, three-phase electrode is arranged in mineral hot furnace, comprise control module, communication module, data acquisition module, motor drive module, described data acquisition module is arranged on mineral hot furnace, motor driver, and control module is by communication module connection data acquisition module and electrode drive module.The low voltage dynamic reactive-power compensation system that the utility model provides, gather by the operating state data of control module to mineral hot furnace and three-phase electrode, process, the operating state of real-time monitoring electrode, realize automatic control reactive-load compesation device and automatically regulate three-phase electrode, make the operating state of three of mineral hot furnace electrodes reach optimum balance degree, greatly improve efficiency, reduce and smelt energy consumption, energy savings consumes, and reduces costs.
Description
Technical field
The utility model relates to reactive power compensation field, particularly low voltage dynamic reactive-power compensation system.
Background technology
Mineral hot furnace due to power large, voltage is low, therefore voltage-side current is very large, therefore the structure reason of mineral hot furnace, the transformer of mineral hot furnace must be connected with electrode by copper pipe of leaking water, due to the reason of big current, therefore the power factor of low-pressure side is general all lower, roughly between 0.7 ~ 0.85, different stoves slightly difference, but larger stove power factor is lower, even if adopt three independent transformer efficiency factors also can not more than 0.85 at the large stove of more than 20000KVA, some power factor can be low to moderate less than 0.7, cause the serious undercapacity of transformer, efficiency is low, energy consumption is higher.
Because the supply power mode of mineral hot furnace adopts open delta supply power mode, three-phase electricity is connected into triangle on electrode, electrode inserts furnace charge, between furnace interior three electrodes, produce arc discharge thus produce the heat needed for smelting, and the functioning equalization state of three electrodes determines the efficiency of smelting to a great extent, the height of the energy consumption of namely smelting, therefore mineral hot furnace all constantly must adjust the position of electrode when smelting, the regulative mode of current electrode is mainly manually regulated respectively by the size of manual observation electrode current, manual adjustment not only regulates inaccurate and speed is slow, and only according to current parameters adjustment electrode, current parameters can not the state of accurate response stove, therefore artificial adjustment can not by three-phase adjustment.
In prior art, enterprise is generally based on the consideration in technology and cost, and during raising power factor have employed, pressure compensates, and namely carries out the compensation of 10KV or 35KV in the high-pressure side of transformer; Impact frequently because high-voltage capacitor can not bear, therefore generally adopt fixed compensation; And mineral hot furnace is due to different at different smelting phase loads, power factor is not identical yet, simultaneously because main idle generation is at the short net of low-pressure side and stove, the idle of its short-and-medium net occupies 70%, also there is very large imbalance in the load of low-pressure side, therefore fix high pressure compensation and can not well compensate the idle of low-pressure side, can not the imbalance of compensating reactive power.
Urgently there is a kind of reactive power compensator of balance.
Utility model content
The low voltage dynamic reactive-power compensation system that the utility model provides, its object is to provide a kind of device carrying out balance adjustment reactive power compensation.
The technical solution of the utility model is achieved in that low voltage dynamic reactive-power compensation system, connect mineral hot furnace, three-phase electrode, three-phase electrode is arranged in mineral hot furnace, comprise control module, communication module, data acquisition module, motor drive module, described data acquisition module is arranged on mineral hot furnace, motor driver, and control module is by communication module connection data acquisition module and electrode drive module.
Further, described control module is main control module and secondary control module, independently of one another, main control module is by communication module connection data acquisition module, and secondary control module connects motor drive module by communication module for described main control module and secondary control module.
Described main control module comprises data processing unit, memory cell and compensating signal output unit; Described memory cell connection data processing unit and compensating signal output unit.
Described memory cell comprises data storage cell.
Described secondary control module comprises reactive power inspection and calculates unit and electrode automatic control unit, and described reactive power inspection is calculated unit and connected main control module, described electrode automatic control unit connecting electrode driver module.
Described data acquisition module comprises current acquisition unit and voltage acquisition unit.
Described communication module is Can signal bus.
Optimally, also comprise display screen, described display screen connects main control module.
Further, described electrode drive module is provided with frequency conversion electrode drive hydraulic means.
The low voltage dynamic reactive-power compensation system that the utility model provides, gather by the operating state data of control module to mineral hot furnace and three-phase electrode, process, the operating state of real-time monitoring electrode, realize automatic control reactive-load compesation device and automatically regulate three-phase electrode, make the operating state of three of mineral hot furnace electrodes reach optimum balance degree, greatly improve efficiency, reduce and smelt energy consumption, energy savings consumes, and reduces costs.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1: the utility model structural representation.
In figure: 100, control module; 110, main control module; 111, data processing unit; 112, memory cell; 113, data storage cell; 115, compensating signal output unit; 120, secondary control module; 121, unit is calculated in reactive power inspection; 122, electrode automatic control unit; 200, communication module; 300, mineral hot furnace; 400, three-phase electrode; 500, data acquisition module; 600, motor drive module; 700, display screen.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The low voltage dynamic reactive-power compensation system that the utility model provides, connect mineral hot furnace 300, three-phase electrode 400, three-phase electrode 400 is arranged in mineral hot furnace 300, comprise control module 100, communication module 200, data acquisition module 500, motor drive module 600, described data acquisition module 500 is arranged on mineral hot furnace 300, motor driver, and control module 100 is by communication module 200 connection data acquisition module 500 and electrode drive module.
Further, described control module 100 is main control module 110 and secondary control module 120, described main control module 110 and secondary control module 120 independent of one another, main control module 110 is by communication module 200 connection data acquisition module 500, and secondary control module 120 connects motor drive module 600 by communication module 200.
Described main control module 110 comprises data processing unit 111, memory cell 112 and compensating signal output unit 115; Described memory cell 112 connection data processing unit 111 and compensating signal output unit 115.
Described memory cell 112 comprises data storage cell 113.
Described secondary control module 120 comprises reactive power inspection and calculates unit 121 and electrode automatic control unit 122, and described reactive power inspection is calculated unit 121 and connected main control module 110, described electrode automatic control unit 122 connecting electrode driver module.Described electrode automatic control unit 122 link control module 100, by communication module 200 trigger electrode driver module 600, controls the insertion depth of three-phase electrode 400.
Described data acquisition module 500 comprises current acquisition unit and voltage acquisition unit.
Described communication module 200 is Can signal bus, and all signals, by can bus transfer, according to field condition, also can adopt Wireless Data Transmission.
Optimally, also comprise display screen 700, described display screen 700 connects main control module 110, and display screen 700 can show and control operating state of the present utility model.
Further, described electrode drive module is provided with frequency conversion electrode drive hydraulic means.
In use: main control module 110 gathers electric current and the voltage signal of reactive power compensator by signal acquisition module, main control module 110 calculates the data of unit 121 and electric current, the voltage signal data calculating electrode operating state of reactive power compensator according to the reactive power inspection of secondary control module 120, signal acquisition module passes to signal processing unit by Can communication bus, calculate the apparent power of current three-phase electrode 400, active power and reactive power, calculate non-equilibrium state and the operating state of three-phase electrode 400, compensating signal output unit 115 sends compensating signal, and calculate by the reactive power inspection of secondary control module 120 active power and the reactive power that unit 121 pairs of step-up side current/voltages calculate input transformer, again active power and reactive power are carried out square, summation, evolution and do division, data process, obtain the power factor of mineral hot furnace 300, and the insertion depth of three-phase electrode 400 is controlled respectively by electrode automatic control unit 122, data are sent into the data processing unit 111 of main control module 110 simultaneously, when calculating the degree of unbalance of the degree of unbalance of electrode and the meritorious, idle of system, the poke element memory cell 112 connecting electrode automatic control unit 122 of main control module 110, the action of electrode automatic control unit 122 control electrode driver module 600, insert or extract three-phase electrode 400, ensureing the degree of balance of system.
Main control module 110 and the secondary control module 120 of control module 100 can work independently, also can associated working, also can accept the control of main control unit.If main control unit breaks down, reactive power compensation inspection is calculated and control unit still can effective compensation System Reactive Power.Control module 100 adopts modular manner to be stacked on control desk, and secondary control module 120 both can work independently, also can collaborative work under the control of main control module 110.The poke module of main control module 110 can realize electric energy statistics automatically, by manually inputting various material mixture ratio, and output, can statistics be provided, assisting users analysis smelts parameters to the impact of smelting, for the energy-saving and cost-reducing of user provides strong data supporting.
The low voltage dynamic reactive-power compensation system that the utility model provides, gather by the operating state data of control module 100 pairs of mineral hot furnaces 300 and three-phase electrode 400, process, the operating state of real-time monitoring electrode, realize automatic control reactive-load compesation device and automatically regulate three-phase electrode 400, make the operating state of three of mineral hot furnace 300 electrodes reach optimum balance degree, greatly improve efficiency, reduce and smelt energy consumption, energy savings consumes, and reduces costs.
Certainly; when not deviating from the utility model spirit and essence thereof; those of ordinary skill in the art should make various corresponding change and distortion according to the utility model, but these change accordingly and are out of shape the protection range that all should belong to the claim appended by the utility model.
Claims (9)
1. low voltage dynamic reactive-power compensation system, connect mineral hot furnace (300), three-phase electrode (400), three-phase electrode (400) is arranged in mineral hot furnace (300), it is characterized in that: comprise control module (100), communication module (200), data acquisition module (500), motor drive module (600), described data acquisition module (500) is arranged on mineral hot furnace (300) motor driver, and control module (100) is by communication module (200) connection data acquisition module (500) and electrode drive module.
2. low voltage dynamic reactive-power compensation system according to claim 1, it is characterized in that: described control module (100) is main control module (110) and secondary control module (120), described main control module (110) and secondary control module (120) are independently of one another, main control module (110) is by communication module (200) connection data acquisition module (500), and secondary control module (120) connects motor drive module (600) by communication module (200).
3. low voltage dynamic reactive-power compensation system according to claim 2, is characterized in that: described main control module (110) comprises data processing unit (111), memory cell (112) and compensating signal output unit (115); Described memory cell (112) connection data processing unit (111) and compensating signal output unit (115).
4. low voltage dynamic reactive-power compensation system according to claim 3, is characterized in that: described memory cell (112) comprises data storage cell (113).
5. low voltage dynamic reactive-power compensation system according to claim 2, it is characterized in that: described secondary control module (120) comprises reactive power inspection and calculates unit (121) and electrode automatic control unit (122), described reactive power inspection is calculated unit (121) and is connected main control module (110), described electrode automatic control unit (122) connecting electrode driver module.
6. low voltage dynamic reactive-power compensation system according to claim 1, is characterized in that: described data acquisition module (500) comprises current acquisition unit and voltage acquisition unit.
7. according to the low voltage dynamic reactive-power compensation system in claim 1-6 described in any, it is characterized in that: described communication module (200) is Can signal bus.
8. according to the low voltage dynamic reactive-power compensation system in claim 2-6 described in any, it is characterized in that: also comprise display screen (700), described display screen (700) connects main control module (110).
9. according to the low voltage dynamic reactive-power compensation system in claim 1-6 described in any, it is characterized in that: described electrode drive module is provided with frequency conversion electrode drive hydraulic means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420268794.5U CN204156532U (en) | 2014-05-23 | 2014-05-23 | Low voltage dynamic reactive-power compensation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420268794.5U CN204156532U (en) | 2014-05-23 | 2014-05-23 | Low voltage dynamic reactive-power compensation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204156532U true CN204156532U (en) | 2015-02-11 |
Family
ID=52514620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420268794.5U Expired - Fee Related CN204156532U (en) | 2014-05-23 | 2014-05-23 | Low voltage dynamic reactive-power compensation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204156532U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109862644A (en) * | 2019-03-29 | 2019-06-07 | 江苏德龙镍业有限公司 | A kind of electrodes in mine hot stove automatic regulating system |
-
2014
- 2014-05-23 CN CN201420268794.5U patent/CN204156532U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109862644A (en) * | 2019-03-29 | 2019-06-07 | 江苏德龙镍业有限公司 | A kind of electrodes in mine hot stove automatic regulating system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104821607A (en) | Photovoltaic microgrid power equalization control method based on three-end cooperative control | |
| CN105186531A (en) | Hybrid dynamic reactive compensation apparatus and method | |
| CN201877840U (en) | Three-phase unbalance regulation and reactive power compensation device for power distribution transformer | |
| CN106602608A (en) | Photovoltaic energy storage system in DC power distribution network and operation control method thereof | |
| CN206790103U (en) | A kind of voltage dip/temporarily rise controlling device | |
| CN204156532U (en) | Low voltage dynamic reactive-power compensation system | |
| CN102364742B (en) | Storage battery formation processing charging and discharging main circuit structure | |
| CN203151105U (en) | Submerged arc furnace control system | |
| CN201150004Y (en) | Joint operation control system for DSTATCOM and IVC | |
| CN207410067U (en) | A kind of anti-reverse apparatus and system of solar panels | |
| CN203574377U (en) | Static reactive power compensator for 10kV long-distance power supply | |
| CN203466627U (en) | Intelligent transformer | |
| CN202206141U (en) | Submerged arc furnace secondary low pressure fixing and dynamic energy-saving compensation device | |
| CN101330216A (en) | Secondary low-voltage compensation apparatus for improving submerged arc resistance furnace power factor | |
| CN203151111U (en) | SVG high voltage dynamic reactive compensation and harmonic wave treatment apparatus | |
| CN201898337U (en) | Special low-voltage reactive compensation device for submerged arc furnace | |
| CN202395456U (en) | High and low voltage dynamic energy-saving compensation complete equipment of ore furnace | |
| CN217692678U (en) | Reactive automatic regulating system of power grid | |
| CN104701866A (en) | Efficient automatic reactive compensation device | |
| CN202797988U (en) | Low-voltage integrated compensation system of static var generator for industrial furnace | |
| CN202042909U (en) | Longitudinal capacitance compensation device for submerged arc furnace | |
| CN204068281U (en) | Phase three-wire three unbalanced load analogue means | |
| CN210927113U (en) | Full-state intelligent fine reactive power compensation device of transformer | |
| CN203536967U (en) | Distribution transformer | |
| CN202663120U (en) | Reactive compensation structure for ferroalloy smelting electric furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Short net side low voltage dynamic reactive power compensation system in metallurgical industry Effective date of registration: 20151112 Granted publication date: 20150211 Pledgee: Agricultural Bank of China Limited by Share Ltd Chengdu Jinniu branch Pledgor: Chengdu Hai Xun Scientific and Technical Industry Co., Ltd Registration number: 2015990000993 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PP01 | Preservation of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20180918 Granted publication date: 20150211 |
|
| PD01 | Discharge of preservation of patent | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20210918 Granted publication date: 20150211 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150211 Termination date: 20190523 |