CN203243045U - Novel power distribution network electric energy quality control device - Google Patents
Novel power distribution network electric energy quality control device Download PDFInfo
- Publication number
- CN203243045U CN203243045U CN2013202620372U CN201320262037U CN203243045U CN 203243045 U CN203243045 U CN 203243045U CN 2013202620372 U CN2013202620372 U CN 2013202620372U CN 201320262037 U CN201320262037 U CN 201320262037U CN 203243045 U CN203243045 U CN 203243045U
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- power
- electric energy
- distribution network
- quality control
- energy quality
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- 238000003908 quality control method Methods 0.000 title claims abstract description 15
- 239000003990 capacitor Substances 0.000 claims abstract description 5
- 238000005516 engineering process Methods 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000000819 phase cycle Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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Classifications
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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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- 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 a novel power distribution network electric energy quality control device. A touch screen (2) is arranged on a front panel of a cabinet, and an air switch (1) is arranged above the touch screen (2). A heavy current terminal (21), a fuse (19), a DC capacitor (13), contactors (14, 15, 16, 20), lightning arresters (7, 8, 9, 10), a Hall voltage sensor (5), Hall current sensors (22, 23, 24, 25), reactors (11, 12, 26, 27), power modules (3, 4), a controller (6), the touch screen (2), a power source, and the air switch (1) are connected one by one in the cabinet. The controller (6) is connected to a current transformer board (18), a voltage transformer board (17), and the power modules (3, 4). The device provided is small in size, as the occupied space of the device is only 5% of that of an FC, i.e. a space of 10 square meters. The device is easy for operation and usage.
Description
Technical field
The utility model belongs to the power technology field, relates to a kind of power distribution network new electric energy quality control apparatus.
Background technology
Along with the development of global new and high technology, electronic technology has obtained using more widely.Great power conversion circuit, frequency conversion equipment particularly are widely used in electric power system in industrial system, in addition the television set of our daily use, convertible frequency air-conditioner etc.These high technology equipments bring us and also produce simultaneously easily a large amount of high order harmonic components, and such as 3 times, 5 times, 7 inferior, these harmonic contents can have a strong impact on the normal operation of electronic equipment when surpassing certain value, and serious meeting damages electronic equipment.Fundamental current lags behind line voltage during most nonlinear power electronic equipments operation, consumes a large amount of idle and produce a large amount of harmonic currents.A large amount of reactive currents causes the fluctuation of supply power voltage and flickering, the wave distortion of supply power voltage, power factor to worsen, and the quality of power supply reduces, and operation of power networks is brought very large harm.Therefore must administer the harmonic wave in the electrical network, improve power supply quality.
In traditional compensation arrangement, the inhibition of the compensation of reactive power, the inhibition of negative-sequence current, harmonic current respectively, isolatedly carry out is not administered by unified Mathematical Modeling in all directions.Owe in theory complete, often occur the situation of attending to one thing and lose sight of another in the practice, even bring each other adverse influence.Owing to compensating independently with different device respectively, being difficult to reach the purpose of full remuneration.The installation and maintenance workload is large, and cost performance is low.
The utility model content
The purpose of this utility model is the defective that overcomes prior art, a kind of power distribution network new electric energy quality control apparatus is provided, adopts the Instantaneous Power Theory model of modern power electronics technology, coordinate transform and based on the novel reactive power compensation of the Digital Signal Processing development of high-speed dsp device and the special equipment of harmonic wave control.Power cell adopts modular construction, the self-excitation Starting mode, and the advanced technologies such as digital DSP control have realized the real-time automatic tracking of harmonic wave control and reactive power compensation.
Its technical scheme is:
A kind of power distribution network new electric energy quality control apparatus, the cabinet front panel is provided with touch-screen, touch-screen top is provided with air switch, inside is connected in sequence by large current terminal, fuse, direct current capacitor, contactor, lightning arrester, voltage hall sensor, current Hall transducer, reactor, power model, controller, power supply, air switch, and its middle controller is connected with current transformer plate, voltage transformer plate, power model.
Among the embodiment of the present utility model, the cabinet height of power distribution network new electric energy quality control apparatus is 2260mm, and width is 800mm.
The beneficial effects of the utility model:
The utility model power distribution network new electric energy quality control apparatus volume is little: its floor space only is 5% of FC floor space, namely only take 10 square metres space, simple to operate, easy to use: as to adopt the New type LCD operation display interface, Chinese display, simple to operation; Display interface can show the various parameters such as voltage, electric current, harmonic wave in real time.Menu setting is flexible, can select the idle while compensation model of harmonic elimination pattern, reactive power compensation pattern or harmonic wave; But Offered target power factor and output current; Carry out in real time failure logging and logout.
Description of drawings
Fig. 1 is the panel structure chart of the utility model power distribution network new electric energy quality control apparatus;
Fig. 2 is the Facad structure figure of the utility model power distribution network new electric energy quality control apparatus;
Fig. 3 is the structure figure of the utility model power distribution network new electric energy quality control apparatus.
Embodiment
Describe the technical solution of the utility model in detail below in conjunction with the accompanying drawing specific embodiment.
With reference to Fig. 1-Fig. 3, a kind of power distribution network new electric energy quality control apparatus, the cabinet front panel is provided with touch-screen 2, and touch-screen 2 tops are provided with air switch 1, and are inner by large current terminal 21, fuse 19, direct current capacitor 13, contactor 14; 15; 16; 20, lightning arrester 7; 8; 9; 10, voltage hall sensor 5, current Hall transducer 22; 23; 24; 25, reactor 11; 12; 26; 27, power model 3; 4, controller 6, touch-screen 2, power supply, air switch 1 are connected in sequence, and its middle controller 6 is connected with current transformer plate 18, voltage transformer plate 17, power model 3; 4.The height of power distribution network new electric energy quality control apparatus cabinet is 2260mm, and width is 800mm.
Fuse: be serially connected in the circuit, when it overcurrent, overvoltage or the anomaly such as overheated occur in circuit, can fuse immediately and play a protective role, can prevent that fault from further enlarging.
Lightning arrester: be used for protecting in the electric power system various electric equipments to avoid lightning overvoltage, switching overvoltage, Frequency Transient Overvoltage and impact.
Voltage hall sensor: be used for measuring dc capacitor both end voltage and system voltage.
Current Hall transducer: be used for measuring system electric current and offset current.
Contactor: respectively control loop, charge circuit and major loop are connected automatically or disjunction AC and DC control circuit by controller.
Switching Power Supply: be respectively control loop provide+24V DC power supply, voltage and current Hall transducer be required ± 15V DC power supply, touch-screen be required+the 5V DC power supply.
Power model: adopt insulated gate bipolar transistor (IGBT) power model of Ying Feiling company to form the voltage-type inverter bridge, by regulating amplitude and the phase place of inverter AC output voltage, send lagging reactive power or capacitive reactive power, realize regulating continuously the purpose of reactive power.Simultaneously, owing to adopted the 4th generation IGBT and modularized design, so that power cell has the advantages that volume is little, efficient is high, reliability is high.
Touch-screen: be used for the parameters such as the auto-parallel of control device and monitoring and shows system voltage, system power, power factor, Power Quality Comprehensive Treatment Device offset current, direct voltage.
Controller: device adopts the control system controller based on digital signal processor (DSP) and field programmable gate array (FPGA), has the various instantaneous algorithms such as instantaneous reactive power, active power, instantaneous voltage vector, current phasor, instantaneous positive sequence, negative phase-sequence; Have ratio, integration, differential control module, fuzzy control model, iterative learning control module and overcurrent protection module, the protection control module etc. that resets.Can carry out accurately fast capacitive and inductive reactive power compensation, the variation of power consumption equipment impact load be carried out the dynamic compensation of reactive power, reduce and eliminate voltage fluctuation and the flickering that impact load produces electrical network to reaching.
Adopt the fiber-optic signal transmission technology between controller and the power cell, the fully reliable isolation of low-pressure section and high-pressure section, system has high application security, perfectly Electro Magnetic Compatibility, good operational reliability.
Reactor: be used for connecting Power Quality Comprehensive Treatment Device and electrical network, realize the buffering of energy.Reduce the switching harmonics in the Power Quality Comprehensive Treatment Device output current, reduce common mode disturbances.Limit idle output current; The high order harmonic component that filtering device produces.
The above; it only is the better embodiment of the utility model; protection range of the present utility model is not limited to this; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses, the simple change of the technical scheme that can obtain apparently or equivalence are replaced and are all fallen in the protection range of the present utility model.
Claims (2)
1. power distribution network new electric energy quality control apparatus, it is characterized in that, the cabinet front panel is provided with touch-screen (2), touch-screen (2) top is provided with air switch (1), inner by large current terminal (21), fuse (19), direct current capacitor (13), contactor (14,15,16,20), lightning arrester (7,8,9,10), voltage hall sensor (5), current Hall transducer (22,23,24,25), reactor (11,12,26,27), power model (3,4), controller (6), touch-screen (2), power supply, air switch (1) is connected in sequence, and its middle controller (6) is connected with current transformer plate (18), voltage transformer plate (17), power model (3,4).
2. power distribution network new electric energy quality control apparatus according to claim 1 is characterized in that, the cabinet height is 2260mm, and width is 800mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202620372U CN203243045U (en) | 2013-05-15 | 2013-05-15 | Novel power distribution network electric energy quality control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202620372U CN203243045U (en) | 2013-05-15 | 2013-05-15 | Novel power distribution network electric energy quality control device |
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| Publication Number | Publication Date |
|---|---|
| CN203243045U true CN203243045U (en) | 2013-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013202620372U Expired - Lifetime CN203243045U (en) | 2013-05-15 | 2013-05-15 | Novel power distribution network electric energy quality control device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105185205A (en) * | 2015-09-15 | 2015-12-23 | 安徽佑赛科技有限公司 | Electric energy quality demonstration system |
-
2013
- 2013-05-15 CN CN2013202620372U patent/CN203243045U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105185205A (en) * | 2015-09-15 | 2015-12-23 | 安徽佑赛科技有限公司 | Electric energy quality demonstration system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent of invention or patent application | ||
| C56 | Change in the name or address of the patentee | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Yuliang Inventor after: Zhang Sanyong Inventor after: Xu Weidong Inventor after: Liu Yang Inventor after: Sun Guorong Inventor after: Chen Mingfei Inventor after: Guo Hongyue Inventor after: Guo Chunxiang Inventor after: Guan Wei Inventor after: Li Yulin Inventor after: Li Tan Inventor before: Liu Yang Inventor before: Li Tan Inventor before: Zhang Sanyong Inventor before: Guan Wei Inventor before: Xu Weidong Inventor before: Deng Wenwen |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LIU YANG LI TAN ZHANG SANYONG GUAN WEI XU WEIDONG DENG WENWEN TO: ZHANG YULIANG LIU YANG SUN GUORONG CHEN MINGFEI GUO HONGYUE GUO CHUNXIANG GUAN WEI LI YULIN LI TAN ZHANG SANYONG XU WEIDONG |
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| CP02 | Change in the address of a patent holder |
Address after: The wisdom of building Hunnan District of Shenyang City, Liaoning province 110000 No. 600-1 Patentee after: LIAONING LIDE ELECTRICAL POWER ENGINEERING DESIGN CO.,LTD. Address before: Hunnan New Century Road 110000 Shenyang city of Liaoning province No. 22 torch Information Park building two Patentee before: LIAONING LIDE ELECTRICAL POWER ENGINEERING DESIGN CO.,LTD. |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: The wisdom of Hunnan District of Shenyang city street 110000 Liaoning province No. 600-1 Patentee after: LIAONING LIDE ELECTRICAL POWER ENGINEERING DESIGN CO.,LTD. Address before: The wisdom of building Hunnan District of Shenyang City, Liaoning province 110000 No. 600-1 Patentee before: LIAONING LIDE ELECTRICAL POWER ENGINEERING DESIGN CO.,LTD. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Novel device and method for controlling electric energy quality of power distribution network Effective date of registration: 20190225 Granted publication date: 20131016 Pledgee: Shenyang Tiexi Branch of Fuxin Bank Co.,Ltd. Pledgor: LIAONING LIDE ELECTRICAL POWER ENGINEERING DESIGN CO.,LTD. Registration number: 2019210000003 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20201231 Granted publication date: 20131016 Pledgee: Shenyang Tiexi Branch of Fuxin Bank Co.,Ltd. Pledgor: LIAONING LIDE ELECTRICAL POWER ENGINEERING DESIGN Co.,Ltd. Registration number: 2019210000003 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A new power quality control device for distribution network Effective date of registration: 20210105 Granted publication date: 20131016 Pledgee: Shenyang Tiexi Branch of Fuxin Bank Co.,Ltd. Pledgor: LIAONING LIDE ELECTRICAL POWER ENGINEERING DESIGN Co.,Ltd. Registration number: Y2021210000001 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20220624 Granted publication date: 20131016 |
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| PP01 | Preservation of patent right | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131016 |
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| PD01 | Discharge of preservation of patent |
Date of cancellation: 20230515 Granted publication date: 20131016 |
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