CN201766366U - Modular three-phase three-wire active power filter - Google Patents
Modular three-phase three-wire active power filter Download PDFInfo
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- CN201766366U CN201766366U CN2010202423309U CN201020242330U CN201766366U CN 201766366 U CN201766366 U CN 201766366U CN 2010202423309 U CN2010202423309 U CN 2010202423309U CN 201020242330 U CN201020242330 U CN 201020242330U CN 201766366 U CN201766366 U CN 201766366U
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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
- Y02E40/20—Active power filtering [APF]
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Abstract
The utility model relates to a modular three-phase three-wire active power filter which adopts a frame structure of a whole profile building machine or adopts a standard distribution cabinet type; the modular three-phase three-wire active power filter is provided with five main functional modules according to functions, namely, a circuit breaker module, a filter module, a converter module, a reactor module and a harmonic analyzer module. Different modules achieve the purposes of electrical connection and data communication by corresponding hardware interfaces. The modules are respectively arranged in a box body formed by profile according to different functions. In the utility model, the functions of all the modules are relatively independent, each module can be independently replaced, the updating and capacity expansion of functions and fault maintenance are convenient to carry out, and the practicability and flexibility of the three-phase three-wire active power filter are improved; and the interference resistance is strong, the filtering performance index is high, stable and reliable and the installation and wiring are convenient and simple.
Description
Technical field
The utility model relates to a kind of electric-power filter, particularly a kind of modularized three-phase three-wire active power filter.
Background technology
At present; in three-phase three-wire active power filter commonly used; common mounting structure only directly is positioned over inner components and parts casing or cabinet inside; like this when three-phase three-wire active power filter need be upgraded expansion or breakdown maintenance; need detect and change whole box body or cabinet; be unfavorable for upgrading expansion and breakdown maintenance; and main circuit is not effectively limited the interference of control circuit; this will influence the performance index and the job stability of Active Power Filter-APF; in case break down, must shut down maintenance.Machine after the maintenance must could use after the assay was approved by machine debugging.The check debugging more complicated of three-phase three-wire active power filter be difficult at the scene carry out, and common structure all is a whole machine installation at present that volume is big, Heavy Weight, depot repair difficulty.Three-phase three-wire active power filter self is a harmonic source simultaneously, also is a strong interferers.
Therefore, the structural module of three-phase three-wire active power filter is very necessary, provide a kind of simple in structure, reasonable in design, use modularized three-phase three-wire active power filter easy, high performance index, be one of these those skilled in the art problem that should address.
The utility model content
The purpose of this utility model is to overcome above-mentioned weak point, provide a kind of simple in structure, reasonable in design, antijamming capability is strong, the modularized three-phase three-wire active power filter of convenient and simple to install wiring, high performance index.
The technical scheme that the utility model adopted is for achieving the above object: a kind of modularized three-phase three-wire active power filter, it is characterized in that: the frame structure that this three-phase three-wire active power filter adopts section bar to build complete machine, or adopt standard distributed cabinet type; Three-phase three-wire active power filter is made as five main functional modules by function, i.e. breaker module, filter module, converter module, reactor module, harmonic analyzer module; Described converter module is by load current sensor sampling electrical network load current, analysis meter is calculated actual harmonic current on the electrical network, and the offset current by actual harmonic current opposite sign but equal magnitude on one of the power device output of control in the current transformer and the electrical network is to reactor module then; By outputing to filter module after the reactor module filtering, pass through the filter module filtered again after, output to electrical network by breaker module, the harmonic current that produces with nonlinear load on the electrical network offsets, and reaches the purpose of harmonic wave on the filtering electrical network; Correspondence is provided with hardware interface between the different modules; The standard interface of employing definition reaches connection and the data communication between the disparate modules; L1 is continuous mutually with electrical network A by breaker module for described filter module terminal LB1; L2 is continuous mutually with electrical network B by breaker module for filter module terminal LB2; L3 is continuous mutually with electrical network C by breaker module for filter module terminal LB3; Filter module terminal LB4 links to each other with reactor module terminal LK1; Filter module terminal LB5 links to each other with reactor module terminal LK3; Filter module terminal LB6 links to each other with reactor module terminal LK5; Reactor module terminal LK2 links to each other with the terminal AF1 of current transformer; Reactor module terminal LK4 links to each other with current transformer terminal AF2; Reactor module terminal LK6 links to each other with current transformer terminal AF3; The terminal AF4 of current transformer links to each other with load sample rate current transducer; Current transformer terminal AF5 links to each other with the terminal XB1 of harmonic analyzer module.
The beneficial effects of the utility model are: each functions of modules of the utility model is relatively independent, and each piece all can be changed separately, conveniently carries out the upgrade expanding and the breakdown maintenance of function, has improved the practicality and the flexibility of three-phase three-wire active power filter; Its antijamming capability is strong, and the filtering performance index is high and reliable and stable, convenient and simple to install wiring.It is simple in structure, and is reasonable in design, practical, low cost of manufacture.Three-phase three-wire active power filter self is a harmonic source, also is a strong interferers; Because the shell of each module of the utility model all adopts iron-clad, thereby self antijamming capability is strengthened greatly, stopped interfering with each other between each device, major loop is to the interference of control loop, and Active Power Filter-APF is to the interference of miscellaneous equipment.The utility model is stable and reliable for performance, has wide range of applications, and can also solve the filtering problem of big capacity nonlinear load, is applicable to the requirement of various occasions.
Description of drawings
Fig. 1 is the installation wiring schematic diagram between each module of the utility model;
Among the figure:
The 1-breaker module;
The 2-filter module;
The 3-converter module;
The 4-reactor module;
5-harmonic analyzer module;
LH1-A phase load current sample transducer;
LH2-B phase load current sample transducer;
LH3-C phase load current sample transducer;
Filter terminal LB1: the A phase harmonic compensation harmonic current lead-out terminal behind filter filtering;
Filter terminal LB2: the B phase harmonic compensation harmonic current lead-out terminal behind filter filtering;
Filter terminal LB3: the C phase harmonic compensation harmonic current lead-out terminal behind filter filtering;
Filter terminal LB4: the A phase harmonic compensation harmonic current input terminal before filter filtering;
Filter terminal LB5: the B phase harmonic compensation harmonic current input terminal before filter filtering;
Filter terminal LB6: the C phase harmonic compensation harmonic current input terminal before filter filtering;
Reactor terminal LK1: through the filtered A phase of reactor harmonic compensation harmonic current lead-out terminal;
Reactor terminal LK3: through the filtered B phase of reactor harmonic compensation harmonic current lead-out terminal;
Reactor terminal LK5: through the filtered C phase of reactor harmonic compensation harmonic current lead-out terminal;
Reactor terminal LK2: the A phase harmonic compensation harmonic current input terminal before reactor filtering;
Reactor terminal LK4: the B phase harmonic compensation harmonic current input terminal before reactor filtering;
Reactor terminal LK6: the C phase harmonic compensation harmonic current input terminal before reactor filtering;
Current transformer terminal AF1:A phase harmonic compensation harmonic current lead-out terminal;
Current transformer terminal AF2:B phase harmonic compensation harmonic current lead-out terminal;
Current transformer terminal AF3:C phase harmonic compensation harmonic current lead-out terminal;
Current transformer terminal AF4: load current sampling sensor interface;
Current transformer terminal AF5: with the harmonic analyzer communication interface;
Harmonic analyzer terminal XB1: with the current transformer communication interface.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to according to the novel embodiment that provides of this use, structure, details are as follows for feature:
Referring to Fig. 1, a kind of modularized three-phase three-wire active power filter is characterized in that: the frame structure of this three-phase three-wire active power filter adopts section bar to build, and also can use standard distributed cabinet type; Each module is installed in the casing that constitutes with section bar separately by the function difference; Each module is installed and wiring according to Fig. 1 version.Described each module comprises: breaker module 1, filter module 2, converter module 3, reactor module 4, harmonic analyzer module 5; Converter module is by load current sensor sampling electrical network load current, and analysis meter is calculated actual harmonic current on the electrical network routinely, offset current by actual harmonic current opposite sign but equal magnitude on one of power controlling device output and the electrical network is to reactor module then, by outputing to filter module after the reactor module filtering, after passing through the filter module filtered again, output to electrical network by breaker module, the harmonic current that produces with nonlinear load on the electrical network offsets, and reaches the purpose of harmonic wave control.And terminal interface, the line by as shown in Figure 1 reaches the purpose that is electrically connected with data communication between the different modules.L1 is continuous mutually with electrical network A by breaker module for filter module terminal LB1; L2 is continuous mutually with electrical network B by breaker module for filter module terminal LB2; L3 is continuous mutually with electrical network C by breaker module for filter module terminal LB3; Filter module terminal LB4 links to each other with reactor module terminal LK1; Filter module terminal LB5 and reactor module terminal LK3 be downlink connection mutually; Filter module terminal LB6 links to each other with reactor module terminal LK5; Reactor module terminal LK2 links to each other with the terminal AF1 of current transformer; Reactor module terminal LK4 links to each other with current transformer terminal AF2; Reactor module terminal LK6 links to each other with current transformer terminal AF3.The terminal AF4 of current transformer links to each other with load sample rate current transducer; Current transformer terminal AF5 links to each other with the terminal XB1 of harmonic analyzer module.
Operation principle is as follows:
Nucleus module in the three-phase three-wire active power filter module is a converter module.Converter module 3 is sampled to A, B, C three phase network load current respectively by load sample rate current transducer LH1, LH2, LH3, the sampling load current is outputed to the XB1 port of harmonic analyzer 5 by the AF5 port of converter module 3, harmonic analyzer is analyzed the harmonic wave of electrical network, and by man-machine interface parameters such as the size of the number of times that contains harmonic wave in the electrical network, harmonic current, waveform is shown.The load current of 3 pairs of samplings of converter module is analyzed simultaneously, calculate contained harmonic current in electrical network A, B, the C three-phase, the size of harmonic current in the electrical network that comes out according to analytical calculation then, oppositely the back outputs on LK1, LK3, the LK5 terminal of reactor module 4 by terminal AF1, AF2, the AF3 of converter module 3.Again by reactor module 4 filtering, make the offset current waveform of converter module 3 outputs continuous, level and smooth back is by the LK2 of reactor module 4, LK4, the LK6 terminal outputs to the LB4 of filter module 2, LB5, the LB6 terminal, after filter module 2 carries out filtering (high-frequency harmonic that power device produces in the main filtering converter module 3) to offset current once more, LB1 by filter module 2, LB2, LB3 end output compensation harmonic electric current, output on the electrical network by circuit breaker 1 then, the harmonic current that produces with nonlinear load on the electrical network offsets, and reaches the purpose of harmonic wave control.
In the enforcement, the shell of each module all adopts iron-clad, and the independent good grounding measures of the shell of each module, and self antijamming capability is strengthened greatly, has also effectively weakened the interference for other device in the circuit simultaneously.
Above-mentioned detailed description of this modularized three-phase three-wire active power filter being carried out with reference to specific embodiment; be illustrative rather than determinate; therefore in the variation and the modification that do not break away under the utility model general plotting, should belong within the protection range of the present utility model.
Claims (1)
1. a modularized three-phase three-wire active power filter is characterized in that: the frame structure that this three-phase three-wire active power filter adopts section bar to build complete machine, or employing standard distributed cabinet type; Three-phase three-wire active power filter comprises five functional modules, i.e. breaker module, filter module, converter module, reactor module, harmonic analyzer module; Described converter module is by load current sensor sampling electrical network load current, analysis meter is calculated the actual harmonic current on the electrical network, and the offset current by actual harmonic current opposite sign but equal magnitude on one of the power device output of control in the converter module and the electrical network is to reactor module then; By outputing to filter module after the reactor module filtering, pass through the filter module filtered again after, output to electrical network by breaker module, the harmonic current that produces with nonlinear load on the electrical network offsets, and reaches the purpose of harmonic wave on the filtering electrical network; Correspondence is provided with hardware interface between the different modules; The standard interface of employing definition reaches connection and the data communication between the disparate modules; L1 is continuous mutually with electrical network A by breaker module for described filter module terminal LB1; L2 is continuous mutually with electrical network B by breaker module for filter module terminal LB2; L3 is continuous mutually with electrical network C by breaker module for filter module terminal LB3; Filter module terminal LB4 links to each other with reactor module terminal LK1; Filter module terminal LB5 links to each other with reactor module terminal LK3; Filter module terminal LB6 links to each other with reactor module terminal LK5; Reactor module terminal LK2 links to each other with the terminal AF1 of current transformer; Reactor module terminal LK4 links to each other with current transformer terminal AF2; Reactor module terminal LK6 links to each other with current transformer terminal AF3; The terminal AF4 of current transformer links to each other with load sample rate current transducer; Current transformer terminal AF5 links to each other with the terminal XB1 of harmonic analyzer module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202423309U CN201766366U (en) | 2010-06-30 | 2010-06-30 | Modular three-phase three-wire active power filter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202423309U CN201766366U (en) | 2010-06-30 | 2010-06-30 | Modular three-phase three-wire active power filter |
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| Publication Number | Publication Date |
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| CN201766366U true CN201766366U (en) | 2011-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010202423309U Expired - Fee Related CN201766366U (en) | 2010-06-30 | 2010-06-30 | Modular three-phase three-wire active power filter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101867189A (en) * | 2010-06-30 | 2010-10-20 | 天津诺尔哈顿电器制造有限公司 | Modularized three-phase three-wire active power filter |
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2010
- 2010-06-30 CN CN2010202423309U patent/CN201766366U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101867189A (en) * | 2010-06-30 | 2010-10-20 | 天津诺尔哈顿电器制造有限公司 | Modularized three-phase three-wire active power filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 300000 Tianjin city Xiqing District Jintai Road No. 6 (Dasi) Patentee after: TIANJIN NOLE ELECTRIC CO., LTD. Address before: 300381 Tianjin city Xiqing District of Xiqing Economic Development Zone Industrial Park Ze Road No. 20 Hung Temple Patentee before: Tianjin Nole Electricity Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110316 Termination date: 20150630 |
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| EXPY | Termination of patent right or utility model |