CN202564947U - Active electric power filtering device - Google Patents
Active electric power filtering device Download PDFInfo
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- CN202564947U CN202564947U CN2012201303192U CN201220130319U CN202564947U CN 202564947 U CN202564947 U CN 202564947U CN 2012201303192 U CN2012201303192 U CN 2012201303192U CN 201220130319 U CN201220130319 U CN 201220130319U CN 202564947 U CN202564947 U CN 202564947U
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- filter device
- active electric
- electric filter
- reactance
- optical fiber
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- 238000001914 filtration Methods 0.000 title description 2
- 239000013307 optical fiber Substances 0.000 claims abstract description 17
- 239000003990 capacitor Substances 0.000 claims description 18
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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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
本实用新型涉及一种有源电力滤波装置，包括主有源电力滤波装置和若干个从有源电力滤波装置，其中：所述的主有源电力滤波装置和从有源电力滤波装置分别与电网连接，所述的主有源电力滤波装置通过光纤与所述的从有源电力滤波装置连接。本实用新型是一种基于主从有源滤波器结构的有源电力滤波装置，包括一个主有源电力滤波装置和若干个从有源电力滤波装置，根据不同个数的从有源电力滤波装置的组合，可灵活配置不同容量的有源电力滤波装置，从而使得现场的扩容更为方便。
The utility model relates to an active power filter device, which comprises a master active power filter device and several slave active power filter devices, wherein: the master active power filter device and the slave active power filter devices are respectively connected to the power grid connected, the main active power filter device is connected to the slave active power filter device through an optical fiber. The utility model is an active power filter device based on a master-slave active filter structure, comprising a master active power filter device and several slave active power filter devices, according to different numbers of slave active power filter devices The combination of active power filter devices with different capacities can be flexibly configured, which makes on-site expansion more convenient.
Description
Technical field
The utility model relates to a kind of active electric filter device.
Background technology
Along with the fast development that modernized factory produces, electric load sharply increases, and load capacities such as the various RHVCs in the electrical network, rectifier constantly increase.A large amount of power electronic power devices and device are in the extensive use of electrical network; When bringing energy-conservation and power conversion, cause serious pollution also for the supply network quality of power supply, a large amount of harmonic waves and reactive current injection electric power system to plant produced; Cause the system effectiveness step-down; The power factor variation, and to other equipment and device generation disturbance, the quality of power supply of serious threat electrical network and the safe operation of power equipment; Therefore electric energy quality test is an important content of electric power netting safe running evaluation and research, and harmonic problem is distinct issues.
Administer the normal mode that adds the filter filtering that adopts of harmonic wave, except that passive filter, also obtain increasing approval and application based on the active filter of dynamic compensation.The existing power active filter basically all is the form of single cabinet, installs to be single cabinet, in application, usually can run into: when adopting two or more active filter parallel connections with dilatation, have the problem that is difficult to united and coordinating control between each device.
Therefore, how to realize that the coordinated operation that is together in parallel of a plurality of active filters is one of those skilled in the art's direction of being devoted to study.
Summary of the invention
The purpose of the utility model is to overcome the defective of prior art and a kind of active electric filter device based on modular organization is provided,
The purpose of the utility model is achieved in that
A kind of active electric filter device of the utility model; Comprise that main active electric filter device and several are from active electric filter device; Wherein: described main active electric filter device be connected with electrical network respectively from active electric filter device, described main active electric filter device is connected from active electric filter device with described through optical fiber.
Above-mentioned a kind of active electric filter device; Wherein, Described main active electric filter device comprises successively the power cell that links to each other, from control unit and master controller, described from active electric filter device comprise power cell be attached thereto from control unit.
Above-mentioned a kind of active electric filter device, wherein, described power cell comprises contactor, current-limiting resistance, connection reactance, filter reactance, filter, I GBT current transformer and two dc capacitors, wherein:
Described contactor, filter reactance, connection reactance and I GBT current transformer are connected successively, and the other end of described contactor connects electrical network;
Described current-limiting resistance is parallel to the two ends of contactor;
The input of described filter is connected to filter reactance and connects between the reactance;
The dc capacitor of described two series connection is connected to two outputs of I GBT current transformer, and the phase contact of these two dc capacitors is as dc output end.
Above-mentioned a kind of active electric filter device wherein, describedly comprises drive plate, power supply and sub-control board from control unit, wherein:
Described sub-control board is connected with the power supply power supply, and links to each other with described drive plate;
Described drive plate links to each other with the driving signal input of the IGBT current transformer of described power cell.
Above-mentioned a kind of active electric filter device, wherein, described master controller comprises master board and the power supply that is attached thereto, man-machine interface and optical fiber keyset, wherein:
Described optical fiber keyset through optical fiber respectively with described linking to each other from active electric filter device from control unit;
Described master board links to each other with described sub-control board from control unit through optical fiber.
The utility model is a kind of active electric filter device based on principal and subordinate's active filter structure; Comprise that a main active electric filter device and several are from active electric filter device; Combination according to different numbers from active electric filter device; But the active electric filter device of flexible configuration different capabilities, thereby make that on-the-spot dilatation is more convenient.
Description of drawings
Fig. 1 is the principle schematic of the utility model;
Fig. 2 is the principle schematic of main active electric filter device in the utility model;
Fig. 3 is from the principle schematic of active electric filter device in the utility model.
Embodiment
To combine accompanying drawing that the utility model is described further below.
See also Fig. 1; The utility model active electric filter device has been shown among the figure; It comprises main active electric filter device 1 and several are from active electric filter device 2; Wherein: main active electric filter device 1 be connected with electrical network respectively from active electric filter device 2, main active electric filter device 1 is through optical fiber and be connected from active electric filter device 2.
See also Fig. 2, the main active electric filter device in the utility model has been shown among the figure, this main active electric filter device 1 comprises successively the power cell 3 that links to each other, from control unit 4 and master controller 5, wherein:
Current-limiting resistance 32 is connected to the two ends of contactor 31;
The input of filter 34 is connected to filter reactance 33 and connects between the reactance 35;
Be connected in series two outputs that the branch road that forms is parallel to I GBT current transformer 39 by first dc capacitor 37 and second dc capacitor 38, and the contact mutually of first dc capacitor 37 and second dc capacitor 38 is as dc output end.
Optical fiber keyset 52 through optical fiber respectively with linking to each other from active electric filter device 2 from control unit 4;
See also Fig. 3, illustrated among the figure in the utility model from active electric filter device, should from active electric filter device 2 comprise power cell 3 be attached thereto from control unit 4, wherein:
Current-limiting resistance 32 is connected to the two ends of contactor 31;
The input of filter 34 is connected to filter reactance 33 and connects between the reactance 35;
Be connected in series two outputs that the branch road that forms is parallel to I GBT current transformer 39 by first dc capacitor 37 and second dc capacitor 38, and the contact mutually of first dc capacitor 37 and second dc capacitor 38 is as dc output end.
The compensating parameter that the master board 51 that sub-control board 41 in the utility model receives master controller 5 issues; Generate corresponding pwm signal; It is passed to drive plate 42; Thereby drive IGBT current transformer 39 by drive plate 42 and produce actual offset current, simultaneously, master board 51 is through 52 pairs of compensating parameters that issue from active electric filter device 2 of optical fiber keyset; And then control drives I GBT current transformer 39 and produces actual offset current from the corresponding pwm signal of sub-control board 41 generations of active electric filter device 2.
The utility model is a kind of active electric filter device based on principal and subordinate's active filter structure; Comprise that a main active electric filter device and several are from active electric filter device; Combination according to different numbers from active electric filter device; But the active electric filter device of flexible configuration different capabilities, thereby make that on-the-spot dilatation is more convenient.
Above embodiment only supplies to explain the usefulness of the utility model; But not to the restriction of the utility model; The technical staff in relevant technologies field under the situation of spirit that does not break away from the utility model and scope, can also make various conversion or modification; Therefore all technical schemes that are equal to also should belong to the category of the utility model, should be limited each claim.
Claims (5)
1. active electric filter device; It is characterized in that; It comprises that main active electric filter device and several are from active electric filter device; Wherein: described main active electric filter device be connected with electrical network respectively from active electric filter device, described main active electric filter device is connected from active electric filter device with described through optical fiber.
2. a kind of active electric filter device as claimed in claim 1; It is characterized in that; Described main active electric filter device comprises successively the power cell that links to each other, from control unit and master controller, described from active electric filter device comprise power cell be attached thereto from control unit.
3. a kind of active electric filter device as claimed in claim 2 is characterized in that, described power cell comprises contactor, current-limiting resistance, connection reactance, filter reactance, filter, IGBT current transformer and two dc capacitors, wherein:
Described contactor, filter reactance, connection reactance and IGBT current transformer are connected successively, and the other end of described contactor connects electrical network;
Described current-limiting resistance is parallel to the two ends of contactor;
The input of described filter is connected to filter reactance and connects between the reactance;
The dc capacitor of described two series connection is connected to two outputs of IGBT current transformer, and the phase contact of these two dc capacitors is as dc output end.
4. a kind of active electric filter device as claimed in claim 2 is characterized in that, describedly comprises drive plate, power supply and sub-control board from control unit, wherein:
Described sub-control board is connected with the power supply power supply, and links to each other with described drive plate;
Described drive plate links to each other with the driving signal input of the IGBT current transformer of described power cell.
5. a kind of active electric filter device as claimed in claim 2 is characterized in that, described master controller comprises master board and the power supply that is attached thereto, man-machine interface and optical fiber keyset, wherein:
Described optical fiber keyset through optical fiber respectively with described linking to each other from active electric filter device from control unit;
Described master board links to each other with described sub-control board from control unit through optical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201303192U CN202564947U (en) | 2012-03-30 | 2012-03-30 | Active electric power filtering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201303192U CN202564947U (en) | 2012-03-30 | 2012-03-30 | Active electric power filtering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202564947U true CN202564947U (en) | 2012-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012201303192U Expired - Lifetime CN202564947U (en) | 2012-03-30 | 2012-03-30 | Active electric power filtering device |
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| CN (1) | CN202564947U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623998A (en) * | 2012-03-30 | 2012-08-01 | 上海市电力公司 | An active power filter device |
-
2012
- 2012-03-30 CN CN2012201303192U patent/CN202564947U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623998A (en) * | 2012-03-30 | 2012-08-01 | 上海市电力公司 | An active power filter device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121128 |
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| CX01 | Expiry of patent term |