CN204928129U - A active power filter for post upper band voltage control function - Google Patents
A active power filter for post upper band voltage control function Download PDFInfo
- Publication number
- CN204928129U CN204928129U CN201520536541.6U CN201520536541U CN204928129U CN 204928129 U CN204928129 U CN 204928129U CN 201520536541 U CN201520536541 U CN 201520536541U CN 204928129 U CN204928129 U CN 204928129U
- Authority
- CN
- China
- Prior art keywords
- circuit
- voltage
- active power
- power filter
- harmonic
- 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.)
- Active
Links
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]
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The utility model relates to an active power filter for post upper band voltage control function, the device pass through the installing support to be fixed on the wire pole to be connected with power supply system and load respectively, active power filter include signal acquisition circuit, processing circuit, harmonic compensation circuit and voltage control circuit, signal acquisition circuit, harmonic compensation circuit and voltage control circuit be connected with the load respectively, processing circuit respectively with signal acquisition circuit, harmonic compensation circuit and voltage control circuit connection. Compared with the prior art, the utility model has the advantages of powerful, simple to operate, convenient operation.
Description
Technical field
The utility model relates to a kind of active power filter, especially relates to a kind of active power filter of controlling functions with voltage on post.
Background technology
In China 10KV distribution line, ubiquity distribution transformer divides spreading, mounting points many; the multiple situations such as circuit is long; by daily load, season load variations, radius of electricity supply, the factor such as power load distributing impact; line voltage distribution often can be caused to have a greater change, have a strong impact on line powering quality and power supply reliability.And simple capacitor compensation mainly improves the power factor of circuit, voltage regulation result is very limited, only relies on capacitor compensation can not solve because the voltage that circuit is long, wire diameter is thin, resistance causes reduces problem.The harmonic wave that nonlinear-load causes brings serious negative effect equally, particularly along with the fast development of power electronic technology, the application that various power electronic equipment is increasingly extensive in generating, transmission of electricity, distribution and using electricity system, harmonic wave, idle pollution that it brings electrical network are also serious gradually.Simultaneously along with the progress of social informatization, the extensive use of sensitiveness load (as computer control system, sophisticated electronics etc.), it is also proposed higher requirement to the quality of power supply.
Utility model content
The purpose of this utility model is exactly the active power filter providing a kind of powerful, easy for installation, easy to operate controlling functions with voltage on post in order to overcome defect that above-mentioned prior art exists.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of active power filter of controlling functions with voltage on post, it is characterized in that, this device is fixing on utility poles by mounting bracket, and be connected with electric power system and load respectively, described active power filter comprises signal acquisition circuit, signal processing circuit, harmonic compensation circuit and voltage control circuit, described signal acquisition circuit, harmonic compensation circuit are connected with load respectively with voltage control circuit, and described signal processing circuit is connected with signal acquisition circuit, harmonic compensation circuit and voltage control circuit respectively.
Described signal acquisition circuit comprises current transformer, voltage transformer and HARMONIC SIGNAL EXTRACTION FROM device, described current transformer and voltage transformer are connected on the power supply buses between electric power system and load respectively, described HARMONIC SIGNAL EXTRACTION FROM device is connected with current transformer, and described HARMONIC SIGNAL EXTRACTION FROM device is connected with signal processing circuit respectively with voltage transformer.
Described signal processing circuit comprises DSP and radio communication circuit, described DSP respectively with radio communication circuit, HARMONIC SIGNAL EXTRACTION FROM device, voltage transformer, harmonic compensation circuit and and voltage control circuit be connected.
Described radio communication circuit is short-distance wireless communication circuit or mobile communication card, and described short-distance wireless communication circuit is Bluetooth chip, wifi chip or ZigBee chip, and described mobile communication card is 2G, 3G or 4G communication card.
Described radio communication circuit is connected with remote terminal by wireless network.
Described remote terminal is PC, panel computer or smart mobile phone.
Described mounting bracket is triangle angle steel, and described active power filter is arranged on triangle angle steel by bolt.
Described mounting bracket upper and lower adopts U mouth anchor ear fixing on utility poles respectively.
Compared with prior art, the utility model.
1, powerful, in elimination system, can also voltage-regulation control be carried out while harmonic wave, fundamentally improve the quality of voltage of circuit, effectively improve the power supply quality of electrical network, reduce line loss, improve power supply reliability and the economic benefit of electrical network.
2, easy for installation, installed by triangle angle steel, adopt anchor ear and bolt to fix simultaneously, the basis of proof strength improves installation convenience;
3, easy to operate, carry out two ore control by local and remote terminal, substantially increase operation ease.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Embodiment
As shown in Figure 1, a kind of active power filter of controlling functions with voltage on post, it is characterized in that, this device is fixing on utility poles by mounting bracket, and be connected with electric power system 6 and load 5 respectively, described active power filter comprises signal acquisition circuit 2, signal processing circuit 1, harmonic compensation circuit 3 and voltage control circuit 4, described signal acquisition circuit 2, harmonic compensation circuit 3 is connected with load 5 respectively with voltage control circuit 4, described signal processing circuit 1 respectively with signal acquisition circuit 2, harmonic compensation circuit 3 is connected with voltage control circuit 4.
Described signal acquisition circuit 2 comprises current transformer, voltage transformer and HARMONIC SIGNAL EXTRACTION FROM device, described current transformer and voltage transformer are connected on the power supply buses between electric power system 6 and load 5 respectively, described HARMONIC SIGNAL EXTRACTION FROM device is connected with current transformer, and described HARMONIC SIGNAL EXTRACTION FROM device is connected with signal processing circuit 1 respectively with voltage transformer.
Described signal processing circuit 1 comprises DSP and radio communication circuit, described DSP respectively with radio communication circuit, HARMONIC SIGNAL EXTRACTION FROM device, voltage transformer, harmonic compensation circuit 3 and and voltage control circuit 4 be connected.
Described DSP analyzes the harmonic components that HARMONIC SIGNAL EXTRACTION FROM device extracts, and sends to harmonic compensation circuit 3 by pwm signal, and harmonic compensation circuit 3 produces the contrary pulse current injectingt in a load 5 harmonic current equal and opposite in direction, direction in electrical network.
Described DSP is according to the voltage signal of voltage transformer, and judge load 5 terminal voltage whether in setting range, if exceed setting range, described DSP starting resistor control circuit 4 is that load 5 terminal voltage maintains in setting range by voltage control circuit 4.
Described radio communication circuit is short-distance wireless communication circuit or mobile communication card, and described short-distance wireless communication circuit is Bluetooth chip, wifi chip or ZigBee chip, and described mobile communication card is 2G, 3G or 4G communication card.Described radio communication circuit is connected with remote terminal by wireless network, in real time state information is issued remote terminal.Described remote terminal is PC, panel computer or smart mobile phone, this remote terminal by wireless network Real-time Obtaining state information simultaneously can sending controling instruction to DSP.
Described mounting bracket is triangle angle steel, and described active power filter is arranged on triangle angle steel by bolt.Described mounting bracket upper and lower adopts U mouth anchor ear fixing on utility poles respectively.
The active power filter of controlling functions with voltage on post described in the utility model, voltage-regulation control can also be carried out while harmonic wave in elimination system, fundamentally improve the quality of voltage of circuit, effective power supply quality improving electrical network, reduce line loss, improve power supply reliability and the economic benefit of electrical network.
Device described in the utility model, this device can compensate the harmonic wave that load-side nonlinear-load produces, and improving the system side quality of power supply, is the generation that owner avoids electric power to impose a fine.Load current is detected by current transformer, and calculated by inner DSP, extract the harmonic components in load current, then inner IGBT is sent to by pwm signal, control inverter produces one and load harmonic current equal and opposite in direction, the contrary pulse current injectingt in direction, in electrical network, reaches the object of filtering.
Device described in the utility model, this application of installation is in Standard type, floor space reduces greatly, solve the problems such as the anti-weather disaster in traditional outdoor compensation arrangement O&M, anti-outside destroy and heat radiation, can effectively economize the land resource, expand the development space of urban distribution network, improve power supply reliability.Pole compensation arrangement can be widely used in the ground such as business district, city, landscape region, residential quarter, and alleviate the pressure that city distribution transformer is built, easy for installation, flexible configuration is changeable.
Device described in the utility model, this device is with voltage control function.During due to load-side underloading or heavy duty, load voltage transient change can be caused, affect the normal work of electrical equipment, equipment downtime or overvoltage time serious, can be caused to burn.When detecting that load terminal voltage reduces or is elevated to a certain degree, device will starting resistor controlling functions, and voltage is maintained certain level.
As shown in Figure 1, U
sfor system side voltage, i
sfor system power, i
lfor load current, i
cfor offset current.Load point voltage
U
L＝U
S-(R+jX)i
s
When system loading is in stable excursion, device carries out harmonic compensation.When the active current of load changes greatly, by changing the mode of operation of compensation arrangement, its output is gained merit, for maintaining U
lin allowed limits.
Claims (8)
1. the active power filter of a controlling functions with voltage on post, it is characterized in that, this device is fixing on utility poles by mounting bracket, and be connected with electric power system and load respectively, described active power filter comprises signal acquisition circuit, signal processing circuit, harmonic compensation circuit and voltage control circuit, described signal acquisition circuit, harmonic compensation circuit are connected with load respectively with voltage control circuit, and described signal processing circuit is connected with signal acquisition circuit, harmonic compensation circuit and voltage control circuit respectively.
2. the active power filter of a kind of controlling functions with voltage on post according to claim 1, it is characterized in that, described signal acquisition circuit comprises current transformer, voltage transformer and HARMONIC SIGNAL EXTRACTION FROM device, described current transformer and voltage transformer are connected on the power supply buses between electric power system and load respectively, described HARMONIC SIGNAL EXTRACTION FROM device is connected with current transformer, and described HARMONIC SIGNAL EXTRACTION FROM device is connected with signal processing circuit respectively with voltage transformer.
3. the active power filter of a kind of controlling functions with voltage on post according to claim 2, it is characterized in that, described signal processing circuit comprises DSP and radio communication circuit, described DSP respectively with radio communication circuit, HARMONIC SIGNAL EXTRACTION FROM device, voltage transformer, harmonic compensation circuit and and voltage control circuit be connected.
4. the active power filter of a kind of controlling functions with voltage on post according to claim 3, it is characterized in that, described radio communication circuit is short-distance wireless communication circuit or mobile communication card, described short-distance wireless communication circuit is Bluetooth chip, wifi chip or ZigBee chip, and described mobile communication card is 2G, 3G or 4G communication card.
5. the active power filter of a kind of controlling functions with voltage on post according to claim 4, it is characterized in that, described radio communication circuit is connected with remote terminal by wireless network.
6. the active power filter of a kind of controlling functions with voltage on post according to claim 5, is characterized in that, described remote terminal is PC, panel computer or smart mobile phone.
7. the active power filter of a kind of controlling functions with voltage on post according to claim 1, is characterized in that, described mounting bracket is triangle angle steel, and described active power filter is arranged on triangle angle steel by bolt.
8. the active power filter of a kind of controlling functions with voltage on post according to claim 1, is characterized in that, described mounting bracket upper and lower adopts U mouth anchor ear fixing on utility poles respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520536541.6U CN204928129U (en) | 2015-07-22 | 2015-07-22 | A active power filter for post upper band voltage control function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520536541.6U CN204928129U (en) | 2015-07-22 | 2015-07-22 | A active power filter for post upper band voltage control function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204928129U true CN204928129U (en) | 2015-12-30 |
Family
ID=54977227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520536541.6U Active CN204928129U (en) | 2015-07-22 | 2015-07-22 | A active power filter for post upper band voltage control function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204928129U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106374466A (en) * | 2015-07-22 | 2017-02-01 | 利思电气（上海）有限公司 | Pole-mounted power active filtering apparatus with voltage control function |
-
2015
- 2015-07-22 CN CN201520536541.6U patent/CN204928129U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106374466A (en) * | 2015-07-22 | 2017-02-01 | 利思电气（上海）有限公司 | Pole-mounted power active filtering apparatus with voltage control function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103944243B (en) | A kind of induction type non-contact charging device with accurate alignment function used for electric vehicle | |
| CN202444333U (en) | Frequency tracking control device of magnetic-coupling resonance wireless power transmission system | |
| CN103532584A (en) | Voltage-stabilizing circuit applied to frequency modulation interphone | |
| CN208589920U (en) | A kind of isolated form Wide-range voltage-stabilised power source circuit | |
| CN204928129U (en) | A active power filter for post upper band voltage control function | |
| CN204681263U (en) | Be applied to the switching power source control circuit system of power amplifier | |
| CN205193152U (en) | City cable run ground connection circulation on -line monitoring device | |
| CN204928131U (en) | A active power filter that is used for idle dispatch function of post upper band | |
| CN204719450U (en) | A kind of equipment of Based Intelligent Control multiple stage charging pile | |
| CN206339892U (en) | A kind of power supply voltage control apparatus | |
| CN202679355U (en) | Voltage stabilizing circuit for frequency modulation interphone | |
| CN201656480U (en) | Active filter and reactive power compensation device | |
| CN204720987U (en) | A kind of Active Power Filter-APF | |
| CN106374466A (en) | Pole-mounted power active filtering apparatus with voltage control function | |
| CN203193928U (en) | Power saving device for street lamp | |
| CN203164337U (en) | Smart microgrid power quality monitoring topology system | |
| CN205407279U (en) | Three -phase unbalanced load automatic regulating apparatus | |
| CN203166887U (en) | Wireless control signal emitter for parking charging system | |
| CN204928140U (en) | Outdoor type active power filter's control system | |
| CN203984420U (en) | A kind of novel frequency-modulation intercom for use secondary voltage stabilizing circuit | |
| CN204334349U (en) | For the network switch power circuit of terminal management system | |
| CN204361689U (en) | Intelligent reactive power compensation and harmonic treating apparatus | |
| CN204928141U (en) | Outdoor type takes active power filter of voltage control function | |
| CN203278682U (en) | High power factor constant-current control device with open circuit protection | |
| CN201749324U (en) | Energy-saving circuit of household appliances and display device comprising same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |