CN202333817U - Energy saving and electric energy quality control system of Kivcet furnace - Google Patents
Energy saving and electric energy quality control system of Kivcet furnace Download PDFInfo
- Publication number
- CN202333817U CN202333817U CN2011204601945U CN201120460194U CN202333817U CN 202333817 U CN202333817 U CN 202333817U CN 2011204601945 U CN2011204601945 U CN 2011204601945U CN 201120460194 U CN201120460194 U CN 201120460194U CN 202333817 U CN202333817 U CN 202333817U
- Authority
- CN
- China
- Prior art keywords
- transformer
- furnace
- furnace transformer
- control system
- power supply
- 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 - Lifetime
Links
Images
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
- Y02E40/40—Arrangements for reducing harmonics
Abstract
The utility model discloses an energy saving and electric energy quality control system of a Kivcet furnace. In order to solve the problems that the power supply voltage of the current Kivcet lead smelting furnace generates flickering and fluctuation to severely affect the power supply quality and generate harmonic heating loss, the system of the utility model comprises a furnace transformer compensation winding arranged in the oil tank of a furnace transformer, and a SUG serially connected with the furnace transformer compensation winding and connected to an electric network, wherein a voltage transformer PT is arranged between the SVG and the electric network, a current transformer CT is arranged between the furnace transformer compensation winding and the electric network, the signal output ends of the voltage transformer PT and the current transformer CT are connected with the signal input end of a controller of the SVG, and a static reactive power compensation device connected to the electric network is arranged on one side of the furnace transformer. The energy saving and electric energy quality control system of the utility model has the advantages of small flickering and fluctuation range, security, reliability, economic benefit, reasonability, energy saving, environmental protection and convenience for operation and maintenance.
Description
Technical field
The utility model relates to a kind of energy-conservation and quality of power supply control system, specifically refers to the energy-conservation and quality of power supply control system of a kind of Ji Fusaite lead-smelting furnace.
Background technology
The Ji Fusaite lead-smelting furnace is meritorious in fusion process, reactive power, power factor change with the variation of working condition, in the electrode lifting process, produces very big impulse current.Therefore the Ji Fusaite lead-smelting furnace is not only a serious harmonic source, also can make supply power voltage produce flickering and fluctuation, will have a strong impact on power supply quality and produce the harmonic wave heating loss.
Generally be employed at present and the silent oscillation reactive power automatic compensation device is set on the high voltage supply bus improves power factor, but since silent oscillation to compensate response speed automatically slow, effect is very undesirable.If dynamic reactive compensation device (SVG) is set on the high voltage supply bus, its major defect is that high pressure SVG costs an arm and a leg, volume is big, stability is not enough.(70 ~ 110V) are provided with dynamic reactive compensation device (SVG), abominable because of environment, electric current is too big, and the outlet of furnace transformer low pressure is the water-cooled copper of many parallel connections, connect difficulty, are difficult to carry out if in the furnace transformer low-pressure side.
Summary of the invention
Produce flickering and fluctuation in order to overcome existing Ji Fusaite lead-smelting furnace supply power voltage; Have a strong impact on power supply quality and the deficiency that produces the harmonic wave heating loss; The utility model aims to provide the energy-conservation and quality of power supply control system of a kind of Ji Fusaite stove; This system's flickering and fluctuation range are little, safe and reliable, economical rationality, energy-conserving and environment-protective, operation maintenance convenient.
To achieve these goals, the technical scheme that the utility model adopted is:
Energy-conservation and the quality of power supply control system of a kind of Ji Fusaite stove; Its design feature is; Comprise the furnace transformer compensation winding that is arranged in the furnace transformer fuel tank; With the low pressure dynamic reactive compensation device that is connected to the grid after this furnace transformer compensation windings in series; Be provided with voltage transformer pt between said low pressure dynamic reactive compensation device and the electrical network, be provided with current transformer CT between said furnace transformer compensation winding and the electrical network, the signal output part of this voltage transformer pt summation current transformer CT links to each other with the signal input part of the controller of low pressure dynamic reactive compensation device.
In order to carry out second level compensation, more than power factor compensation to 0.95, the 10kV side of said furnace transformer is provided with the silent oscillation reactive power compensator that inserts electrical network.
Further, said furnace transformer compensation winding is preferably 660V furnace transformer compensation winding.
Between said furnace transformer compensation winding and low pressure dynamic reactive compensation device, be provided with low-voltage air switch DK.
Between said furnace transformer and the electrical network, be equipped with primary cut-out DL between silent oscillation reactive power compensator and the electrical network.
By said structure; Adopt the static comprehensive regulation mode that combines with dynamic secondary reactive power compensation and active power filtering, its core is in the furnace transformer fuel tank, to set up a special-purpose compensation and Filter Winding, and the winding rated voltage adopts 660V; This winding connects low pressure dynamic reactive compensation device SVG; Realize the dynamic adjustment of filtering and first order low-voltage reactive power power, its target is with power factor compensation to 0.90, filters the harmonic current below 13 times; Voltage flicker and fluctuation are met the requirements, the harmonic current that injects electrical network is met the requirements.In the 10kV of furnace transformer side the silent oscillation reactive power compensator being set is second level compensation, more than power factor compensation to 0.95.
Compared with prior art, the beneficial effect of the utility model is:
1, the secondary reactive power compensation is set, the first order is 660V low pressure dynamic passive compensation and active power filtering (SVG), the second level is the reactive power compensation of 10kV high voltage static type.This scheme technology maturation, stable performance, reasonable distribution high and low pressure compensation capacity obtain the best-of-breed technology economic performance.
2, the compensation winding is set and carries out harmonic wave control in furnace transformer, shortened the harmonic current path, reduced the harmonic wave heating, reduced electric energy loss, improved the efficient of furnace transformer.
3, no harmonic flux passes through in the main core, and the furnace transformer noise significantly reduces.
4, voltage flicker, voltage fluctuation are controlled in the allowed band.
5, because first order reactive power compensation and active power filtering are located at furnace transformer inside, reduced the furnace transformer capacity, improved transformer utilization factor, reduced the furnace transformer iron loss, reduced the furnace transformer investment.
Below in conjunction with accompanying drawing and embodiment the utility model is done further to set forth.
Description of drawings
Fig. 1 is the electrical connection sketch map of a kind of embodiment of the utility model.
In the drawings
The 1-furnace transformer; 2-SVG; The 3-electric furnace; 4-silent oscillation reactive power compensator;
11-furnace transformer compensation winding; The 21-SVG controller; The DL-primary cut-out;
The DK-low-voltage air switch; The PT-voltage transformer; The CT-current transformer.
Embodiment
Energy-conservation and the quality of power supply control system of a kind of Ji Fusaite stove; Referring to accompanying drawing 1; A 660V compensation and Filter Winding 11 are set in the fuel tank of furnace transformer 1, and low pressure dynamic reactive compensation device 2 (SVG) compensates with furnace transformer and is connected to the grid after winding 11 is connected.Be provided with low-voltage air switch DK between said furnace transformer compensation winding 11 and the low pressure dynamic reactive compensation device 2, be provided with primary cut-out DL between said furnace transformer 1 and the electrical network.After the electric quantity signal of being gathered by voltage transformer pt, current transformer CT is sent into SVG controller 21 and handled, send instruction and SVG is absorbed rapidly or send required reactive power, follow the tracks of compensation impulse current harmonic electric current and realize first order reactive power compensation and active power filtering.Behind primary cut-out DL, insert the compensation of the silent oscillation reactive power compensator 4 realization second level in furnace transformer 10kV side and further improve power factor.
The content that the foregoing description is illustrated is to be understood that to these embodiment and only is used to be illustrated more clearly in the utility model; And be not used in the restriction the utility model scope; After having read the utility model, those skilled in the art all fall within the application's accompanying claims institute restricted portion to the modification of the various equivalent form of values of the utility model.
Claims (6)
- Yi Zhong Ji Fusaite stove energy-conservation with quality of power supply control system; It is characterized in that; Comprise the furnace transformer compensation winding (11) that is arranged in furnace transformer (1) fuel tank; Compensate the low pressure dynamic reactive compensation device (2) that is connected to the grid after winding (11) is connected with this furnace transformer; Be provided with voltage transformer (PT) between said low pressure dynamic reactive compensation device (2) and the electrical network; Be provided with current transformer (CT) between said furnace transformer compensation winding (11) and the electrical network, the signal output part of this voltage transformer (PT) summation current transformer (CT) links to each other with the signal input part of the controller (21) of low pressure dynamic reactive compensation device (2).
- 2. the energy-conservation and quality of power supply control system of Ji Fusaite stove according to claim 1 is characterized in that the 10kV side of said furnace transformer (1) is provided with the silent oscillation reactive power compensator (4) that inserts electrical network.
- 3. the energy-conservation and quality of power supply control system of Ji Fusaite stove according to claim 1 and 2 is characterized in that, is provided with low-voltage air switch (DK) between said furnace transformer compensation winding (11) and the low pressure dynamic reactive compensation device (2).
- 4. the energy-conservation and quality of power supply control system of Ji Fusaite stove according to claim 1 and 2 is characterized in that, is provided with primary cut-out (DL) between said furnace transformer (1) and the electrical network.
- 5. the energy-conservation and quality of power supply control system of Ji Fusaite stove according to claim 1 and 2 is characterized in that, is provided with primary cut-out (DL) between said silent oscillation reactive power compensator (4) and the electrical network.
- 6. the energy-conservation and quality of power supply control system of Ji Fusaite stove according to claim 1 and 2 is characterized in that, said furnace transformer compensation winding (11) is a 660V furnace transformer compensation winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204601945U CN202333817U (en) | 2011-11-18 | 2011-11-18 | Energy saving and electric energy quality control system of Kivcet furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204601945U CN202333817U (en) | 2011-11-18 | 2011-11-18 | Energy saving and electric energy quality control system of Kivcet furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202333817U true CN202333817U (en) | 2012-07-11 |
Family
ID=46445783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204601945U Expired - Lifetime CN202333817U (en) | 2011-11-18 | 2011-11-18 | Energy saving and electric energy quality control system of Kivcet furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202333817U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103501005A (en) * | 2013-09-30 | 2014-01-08 | 国网湖南省电力公司 | Transformer induction filtering and reactive compensation integration device suitable for wind power |
| CN110148942A (en) * | 2019-06-10 | 2019-08-20 | 国电南瑞科技股份有限公司 | A kind of transformer magnetic compensation device and method adapting to rectification load |
| CN112952858A (en) * | 2019-12-10 | 2021-06-11 | 中国石油化工股份有限公司 | Electric arc furnace power compensation control device and method |
-
2011
- 2011-11-18 CN CN2011204601945U patent/CN202333817U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103501005A (en) * | 2013-09-30 | 2014-01-08 | 国网湖南省电力公司 | Transformer induction filtering and reactive compensation integration device suitable for wind power |
| CN110148942A (en) * | 2019-06-10 | 2019-08-20 | 国电南瑞科技股份有限公司 | A kind of transformer magnetic compensation device and method adapting to rectification load |
| CN110148942B (en) * | 2019-06-10 | 2021-08-24 | 国电南瑞科技股份有限公司 | Transformer magnetic compensation device and method adaptive to rectification load |
| CN112952858A (en) * | 2019-12-10 | 2021-06-11 | 中国石油化工股份有限公司 | Electric arc furnace power compensation control device and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203941798U (en) | Integrated high leakage reactance auxiliary transformer | |
| CN102570474B (en) | Triggering and conducting method used for switching of capacitor of thyristor AC non-contact switch | |
| CN202333817U (en) | Energy saving and electric energy quality control system of Kivcet furnace | |
| CN101572412A (en) | High-capacity packet type switchgear | |
| CN201118463Y (en) | A high-power high-frequency soft switch IGBT reverse agglomeration power supply | |
| CN102810867A (en) | Dynamic reactive compensation system based on magnetic control electric reactor | |
| CN210051827U (en) | High-power frequency converter test system | |
| CN206148955U (en) | Be applied to mixed type dynamic filter compensation arrangement that distribution network electric energy was administered | |
| CN201985531U (en) | High-capacity combined-type switch device | |
| CN201611782U (en) | Second order type filter compensation device of submerged arc furnace and short network system | |
| CN201584792U (en) | Converter tilting energy feedback system | |
| CN101354951B (en) | Magnetic path parallel connection leakage self-shielding type controllable inductor | |
| CN202084937U (en) | MCR type SVC apparatus | |
| CN203491073U (en) | On-load capacity regulating transformer | |
| CN102263413B (en) | Multicolumn body independently controls thyristor valve-controlled controlled shunt reactor device | |
| CN111600333A (en) | 10kV medium-voltage direct-hanging type photovoltaic power station system | |
| CN202309082U (en) | Automatic stepless voltage regulating type reactive power compensator | |
| CN203761049U (en) | Electric arc furnace reactive power fluctuation suppression device | |
| CN204905863U (en) | Distributing type adjusting device suitable for smart power grids | |
| CN204707043U (en) | A kind of Novel thyristor series half-bridge inversion resonant vibration frequency conversion device | |
| CN103208802A (en) | Low-voltage large-current power quality control system | |
| CN204012732U (en) | A kind of dynamic passive capacity transfer tuning filtering compensation arrangement | |
| CN203983995U (en) | A kind of hv filtering building-out capacitor cabinet | |
| CN203960262U (en) | Series resonance one is dragged many online heating steel billet systems | |
| CN201860114U (en) | Comprehensive automatic tracking energy-saving device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180420 Address after: 411100 98 Fuzhou Road, Jiuhua demonstration area, Xiangtan, Hunan Patentee after: Hua Chu hi tech (Hunan) Co., Ltd. Address before: 410011 Changsha Jiefang Middle Road, Hunan, No. 199 Patentee before: Changsha Engineering & Research Institute of Nonferrous Metallurgy Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120711 |