CN203466568U - Energy-saving intelligent filtering compensation measurement comprehensive protection wave optimization cabinet - Google Patents
Energy-saving intelligent filtering compensation measurement comprehensive protection wave optimization cabinet Download PDFInfo
- Publication number
- CN203466568U CN203466568U CN201320584386.6U CN201320584386U CN203466568U CN 203466568 U CN203466568 U CN 203466568U CN 201320584386 U CN201320584386 U CN 201320584386U CN 203466568 U CN203466568 U CN 203466568U
- Authority
- CN
- China
- Prior art keywords
- active power
- power filter
- energy
- cabinet
- transformer
- 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
- 238000001914 filtration Methods 0.000 title claims abstract description 24
- 238000005259 measurement Methods 0.000 title abstract 3
- 238000005457 optimization Methods 0.000 title abstract 3
- 239000003990 capacitor Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 10
- 238000001514 detection method Methods 0.000 description 4
- 235000019800 disodium phosphate Nutrition 0.000 description 4
- 206010010254 Concussion Diseases 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000903 blocking Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- Y02E40/20—Active power filtering [APF]
Abstract
The utility model relates to the technical field of power accessory products and specifically relates to an energy-saving intelligent filtering compensation measurement comprehensive protection wave optimization cabinet. The cabinet comprises a cabinet body which is internally provided with an active power filter, a connection reactor, an active power filterer switch, an isolating switch, a current transformer, a line outlet circuit breaker. The active power filter is connected with the active power filterer switch through the reactor. The active power filterer switch is connected with the isolating switch and a power grid. According to the energy-saving intelligent filtering compensation measurement comprehensive protection wave optimization cabinet, the harmonic current on a bus is eliminated in real time, the operation efficiency of a transformer is raised, the operation safety of the transformer and electric equipment is ensured, transformer operation abnormality, system resonance, and compensation capacitor overcurrent caused by harmonic current are avoided, the service life of the equipment is raised, and a previous frequent capacitor cabinet failure phenomenon is avoided. The cabinet transformer structure has the advantages of modularization, small size, beautiful appearance, safe and reliable operation, convenient maintenance and the like technically.
Description
Technical field
The present invention relates to electric power auxiliary products technical field, be specifically related to the excellent ripple case of a kind of energy-conserving intelligent filtering compensation metering integrated protection.
Background technology
Along with deepening continuously of upgrade of rural power grids, a large amount of distribution transformer integrated power distribution cabinets or JP cabinet are arranged on the distribution transformer secondary side in city net, rural power grids.Outdoor electricity distribution and compensation equipment that distribution transformer integrated power distribution cabinet mainly consists of isolating switch, circuit breaker, capacitor, switching device, compensating controller etc., adopt multiple scheme of electric power flexibly.Cabinet is divided into independently compartment of four of inlet wires, outlet, electric capacity, metering, user according to scene need to select side enterprising, under the lead-in wire mode such as enter.The operation maintenance of rural power grids, safety management have been played to positive effect.But traditional compensator exists the shortcoming that response speed is slow, compensation effect can not accurately be controlled, easily cause self breaking-up with electrical network generation parallel resonance and switching concussion.
Active Power Filter-APF (APF:Active Power Filter), APF accesses electrical network in parallel, by harmonic wave and the idle component of real-time detection load, adopt PWM converter technique, electric current with harmonic wave and idle component equal and opposite in direction, opposite direction is injected to power supply-distribution system, realize and suppress harmonic wave, function that dynamic compensation is idle.APF is the preferred plan in current filtering harmonic wave, reactive power compensation field, up-to-date sci-tech product.But, existing Active Power Filter-APF due to components and parts volume and integrated level not high, often take larger space, be not suitable for the requirement that adapts to the standardization of countryside low-voltage electric distribution device, miniaturization, outdoor type.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of energy-conserving intelligent filtering compensation metering integrated protection excellent ripple case; overcome traditional compensator and have that response speed is slow, compensation effect can not accurately be controlled, easily cause the shortcoming of self breaking-up with electrical network generation parallel resonance and switching concussion.
Technical problem to be solved by this invention realizes by the following technical solutions:
The excellent ripple case of a kind of energy-conserving intelligent filtering compensation metering integrated protection; comprise casing; in described casing, be provided with Active Power Filter-APF, linked reactor, Active Power Filter, isolating switch, current transformer, wire-outgoing breaker; it is characterized in that: described Active Power Filter-APF is connected with Active Power Filter by reactor, described Active Power Filter is connected and electrical network with isolating switch.
Described Active Power Filter-APF is encapsulated in Active Power Filter-APF module.
In Active Power Filter-APF module, metering units is housed.
Active Power Filter comprises circuit breaker, fuse and controlled power electronic device.
The excellent ripple case of energy-conserving intelligent filtering compensation metering integrated protection is arranged on the distribution transformer secondary side in city net, rural power grids.
Isolating switch upper end is directly connected with Circuit Fault on Secondary Transformer, lower end is furnished with road outlet, Active Power Filter-APF is connected with isolating switch upper end by linked reactor, Active Power Filter-APF is isolated harmonic current components and fundamental reactive current from load current, then its reversed polarity effect after-current is followed the tracks of and controlled the offset current producing, calculate the trigger impulse of each switching device of main circuit, this pulse acts on main circuit after drive circuit, only contains like this real component of first-harmonic in circuit.
Adopt Active Power Filter-APF to replace original distribution transformer integrated power distribution cabinet capacitance compensation part, the high order harmonic component of energy filtering appts, reduces harmonic loss, optimizes waveform, can also two-wayly carry out reactive power compensation; Active Power Filter-APF is by current transformer detection system electric current, and calculate by inner DSP, extract the harmonic components in load current, then by pwm signal, send to inner IGBT, control inverter produces one and load harmonic current equal and opposite in direction, the harmonic current injection of opposite direction, in electrical network, reaches the object of filtering.Active Power Filter-APF is active power filtering dynamically, improves the quality of power supply comprehensively; DSP full-digital control, switching frequency is high, to the dynamic change response of load rapidly; Active Power Filter-APF is compensating reactive power simultaneously; Possess three-phase imbalance compensation ability, there is automatic current limiting function, can not transship; Be installed in parallel mode, install simply, volume is little; Reduce line loss, the transformer that harmonic carcellation causes, with the motor feels hot, is realized system significantly energy-conservation; The filter effect of Active Power Filter-APF is not subject to system impedance variable effect, and can self-restration system resonance.
The invention has the beneficial effects as follows: use Active Power Filter-APF to adopt and concentrate filtering mode, harmonic wave on transformer low voltage side bus is totally administered, eliminate in real time to greatest extent the harmonic current on bus, improve the operational efficiency of transformer, guarantee the security of operation of transformer and power consumption equipment, avoid because harmonic current causes transformer operation exception, system resonance, lifting means useful life, avoid capacitor switching in the past to occur mending and owe the situation of mending.Case becomes structure and has technically the advantages such as modularization, volume are little, handsome in appearance, safe and reliable to operation, easy to maintenance, replace traditional JP cabinet and distribution transformer comprehensive distribution box, there is economically floor space little, conveniently moving, gos deep into that load center, construction period are short, the advantage such as cut the waste.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is circuit diagram of the present invention.
In Fig. 1, APF-Active Power Filter-APF,
QS-isolating switch,
1TAa/1TAb/1TAc-current transformer,
QF1/QF2 – wire-outgoing breaker,
QF3 – APF switch,
Fig. 2 is structural representation of the present invention.
In Fig. 2,1, Active Power Filter-APF circuit breaker, 2, linked reactor, 3, Active Power Filter-APF, 4, isolating switch, 5, current transformer, 6, wire-outgoing breaker, 7, cabinet shell.
Embodiment
The excellent ripple case of energy-conserving intelligent filtering compensation metering integrated protection of the present invention is arranged on the distribution transformer secondary side in city net, rural power grids; capacitance compensation part is in the past replaced with Active Power Filter-APF; Active Power Filter-APF accesses electrical network in parallel; by harmonic wave and the idle component of real-time detection load; adopt PWM converter technique; electric current with harmonic wave and idle component equal and opposite in direction, opposite direction is injected to power supply-distribution system, realize and suppress harmonic wave, function that dynamic compensation is idle.
As shown in Figure 1, Active Power Filter-APF is connected with Active Power Filter QF3 by linked reactor, and Active Power Filter QF3 and isolating switch are connected in the secondary side of power network current instrument transformer, connects terminal use's electrical network.Isolating switch upper end is directly connected with transformer 1TAa/1TAb/1TAc secondary side, and lower end is furnished with 2 tunnel outlets, and QF1/QF2 is wire-outgoing breaker, and Active Power Filter-APF APF is connected with isolating switch QS upper end by reactor, APF switch QF3.Active Power Filter-APF 3 is isolated harmonic current components and fundamental reactive current from load current, then its reversed polarity effect after-current is followed the tracks of and controlled the offset current producing, calculate the trigger impulse of each switching device of main circuit, this pulse acts on main circuit after drive circuit, only contains like this real component of first-harmonic in circuit.Thereby reach harmonic carcellation and the object of carrying out reactive power compensation, can effectively reduce the system loss causing because of harmonic current, system power waveform is effectively optimized, improve the quality of power supply.
Rated operational voltage: AC380V ± 15%;
Nominal operation frequency: 50Hz;
Rated capacity: module harmonic current rated capacity 100A;
In three-phase four-wire system, apply;
Switching frequency: 20kHz(is average);
Response time: <10ms;
Defencive function: overcurrent, overvoltage, IGBT are overheated, equipment overheat;
Power loss: during rated full load operation, loss is no more than 4% rated power;
As shown in Figure 2; the energy-conserving intelligent compensation metering integrated protection pressurizer tank of this embodiment; in casing 7, be provided with Active Power Filter-APF module 3, linked reactor 2, Active Power Filter 1, isolating switch 4, current transformer 5, wire-outgoing breaker 6; in Active Power Filter-APF module, be packaged with active power filter 3, also metering units be housed, Active Power Filter 1 comprises circuit breaker, fuse and controlled power electronic device.
Adopt Active Power Filter-APF to replace original distribution transformer integrated power distribution cabinet capacitance compensation part, the high order harmonic component of energy filtering appts, reduces harmonic loss, optimizes waveform, can also two-wayly carry out reactive power compensation; Active Power Filter-APF is by current transformer detection system electric current, and calculate by inner DSP, extract the harmonic components in load current, then by pwm signal, send to inner IGBT, control inverter produces one and load harmonic current equal and opposite in direction, the harmonic current injection of opposite direction, in electrical network, reaches the object of filtering.Active Power Filter-APF is active power filtering dynamically, improves the quality of power supply comprehensively; DSP full-digital control, switching frequency is high, to the dynamic change response of load rapidly; Active Power Filter-APF is compensating reactive power simultaneously; Possess three-phase imbalance compensation ability, there is automatic current limiting function, can not transship; Be installed in parallel mode, install simply, volume is little; Reduce line loss, the transformer that harmonic carcellation causes, with the motor feels hot, is realized system significantly energy-conservation; The filter effect of Active Power Filter-APF is not subject to system impedance variable effect, and can self-restration system resonance.
By filtering compensation function modoularization, be convenient to safeguard and replace; Because Active Power Filter-APF is modular member, there is function of measuring, by capacitance compensation segment set unification phantom blocking in distribution transformer integrated power distribution cabinet in the past, be convenient to install and change, and there is automatic failure alarm function, can when faults itself, not affect system safety stable operation.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is defined by appending claims and equivalent thereof.
Claims (5)
1. an energy-conserving intelligent filtering compensation measures the excellent ripple case of integrated protection; comprise casing; in described casing, be provided with Active Power Filter-APF, linked reactor, Active Power Filter, isolating switch, current transformer, wire-outgoing breaker; it is characterized in that: described Active Power Filter-APF is connected with Active Power Filter by reactor, described Active Power Filter is connected and electrical network with isolating switch.
2. energy-conserving intelligent filtering compensation according to claim 1 measures the excellent ripple case of integrated protection, and described Active Power Filter-APF is encapsulated in Active Power Filter-APF module.
3. according to right, want the excellent ripple case of energy-conserving intelligent filtering compensation metering integrated protection described in 2, it is characterized in that: in Active Power Filter-APF module, metering units is housed.
4. the excellent ripple case of energy-conserving intelligent filtering compensation metering integrated protection according to claim 1, is characterized in that: Active Power Filter comprises circuit breaker, fuse and controlled power electronic device.
5. the excellent ripple case of energy-conserving intelligent filtering compensation metering integrated protection according to claim 1, is characterized in that: the excellent ripple case of energy-conserving intelligent filtering compensation metering integrated protection is arranged on the distribution transformer secondary side in city net, rural power grids.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320584386.6U CN203466568U (en) | 2013-09-22 | 2013-09-22 | Energy-saving intelligent filtering compensation measurement comprehensive protection wave optimization cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320584386.6U CN203466568U (en) | 2013-09-22 | 2013-09-22 | Energy-saving intelligent filtering compensation measurement comprehensive protection wave optimization cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203466568U true CN203466568U (en) | 2014-03-05 |
Family
ID=50178907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320584386.6U Expired - Fee Related CN203466568U (en) | 2013-09-22 | 2013-09-22 | Energy-saving intelligent filtering compensation measurement comprehensive protection wave optimization cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203466568U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103515959A (en) * | 2013-09-29 | 2014-01-15 | 安徽华正电气有限公司 | Energy-saving intelligent filter compensation metering comprehensive protection automatic transmission |
-
2013
- 2013-09-22 CN CN201320584386.6U patent/CN203466568U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103515959A (en) * | 2013-09-29 | 2014-01-15 | 安徽华正电气有限公司 | Energy-saving intelligent filter compensation metering comprehensive protection automatic transmission |
| CN103515959B (en) * | 2013-09-29 | 2016-01-27 | 安徽华正电气有限公司 | The excellent ripple case of a kind of energy-conserving intelligent filtering compensation metering integrated protection |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203405559U (en) | Electronic load of electric energy feedback type | |
| CN104052079A (en) | Electric energy feedback type electronic load | |
| CN102170135A (en) | 35KV large capacity reactive compensation and harmonic suppression integrated system and control method thereof | |
| CN106329572A (en) | Hybrid energy storage converter device and control method | |
| CN102570472A (en) | Comprehensive compensation control device for effectively improving power quality | |
| CN201075697Y (en) | Active filtering electric power electricity saver | |
| CN204205599U (en) | A kind of electronic type feeder line on-load voltage regulating device | |
| CN105119262B (en) | Realize that power quality adjusts the circuit with the active extinguishing arc of small current grounding fault simultaneously | |
| CN201286018Y (en) | Electric power filtering compensating electricity economizer | |
| CN201417949Y (en) | Hybrid active filter | |
| CN103515959B (en) | The excellent ripple case of a kind of energy-conserving intelligent filtering compensation metering integrated protection | |
| CN202373976U (en) | Active filtering device | |
| CN202856361U (en) | Dynamic harmonic wave resistant reactive compensator | |
| CN203466568U (en) | Energy-saving intelligent filtering compensation measurement comprehensive protection wave optimization cabinet | |
| CN102723724B (en) | A kind of novel static dynamic reactive generator device and method thereof | |
| CN202084928U (en) | Hybrid compensation filtering cabinet | |
| CN205092780U (en) | Be used for cophase power supply system can supply cascaded single -phase four -quadrant power unit | |
| CN201726134U (en) | Hybrid active filter | |
| CN203166522U (en) | Active harmonic suppression device | |
| CN203491701U (en) | Harmonic-resistant intelligent integrated power capacitor | |
| CN105471297A (en) | T-shaped three-level converter power module | |
| CN202930939U (en) | Intelligent type three phase electricity-saving appliance | |
| CN205051598U (en) | Inverter power supply | |
| CN205141674U (en) | Dynamic voltage restorer of reactive power and active power circuit block design | |
| CN204244076U (en) | Ultra-wide input voltage DC-DC power source |
Legal Events
| 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: 20140305 Termination date: 20160922 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |