CN206850441U - A kind of reactive-load compensation for low-pressure system and suppression harmonic wave system - Google Patents
A kind of reactive-load compensation for low-pressure system and suppression harmonic wave system Download PDFInfo
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- CN206850441U CN206850441U CN201720780057.7U CN201720780057U CN206850441U CN 206850441 U CN206850441 U CN 206850441U CN 201720780057 U CN201720780057 U CN 201720780057U CN 206850441 U CN206850441 U CN 206850441U
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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
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Abstract
It the utility model is related to a kind of reactive-load compensation for low-pressure system and suppress harmonic wave system, its technical characterstic is：Tune including distributed board outdoor and its inside mends filter circuit；It is described to adjust benefit filter circuit to include ITD condenser types tune benefit device and DL type CSVG electronic modules；The input of the DL types CSVG electronic modules adjusts benefit device to be connected by RS232 interface with ITD condenser types, for gathering the voltage x current value of the power network after ITD condenser types adjust benefit device tracking to adjust benefit；The DL types CSVG electronic modules are also connected with power network, and dynamic passive compensation and filtering process are carried out for gathering the voltage x current value of power network in real time, and to the voltage x current of power network.The utility model employs DL type CSVG modules and ITD types condenser type is adjusted and mends the technical approach that apparatus module blends, and both strong points given full play to, realizes Large Copacity dynamic optimization quality of power supply function.
Description
Technical field
The utility model belong to power electronic equipment manufacture and applied technical field, be related to power system reactive-load compensation and
Harmonic suppression technique, especially a kind of reactive-load compensation for low-pressure system and suppression harmonic wave system.
Background technology
It is such as substantial amounts of personal with the development of electronic technology and the popularization and application of electronic product in low-voltage distribution system
The equipment such as computer, printer, the charger of various mobile phones, electronic console, all with rectification circuit.These rectification circuits product is few
Cheng Duo, substantial amounts of 5 times and 7 subharmonic are produced, make harmonic content in the load current in urban power distribution network increasing, sternly
The quality of power supply of power supply is had influence on again.
Moreover, at present in commercial power load, due to substantial amounts of diode energy saving lamp and LED lighting electronic display
Application, generate substantial amounts of 3 subharmonic again.The asymmetric operation of in general appliance load, substantial amounts of negative-sequence current can be produced
And zero-sequence current.Harmonic wave makes voltage waveform produce distortion, in having a strong impact on that power supply quality, zero sequence and 3 subharmonic can produce largely
Line current, neutral point voltage is offset, transformer loss increase, center line can be blown when serious, damages user equipment, and may make
Into fire.
Therefore the comprehensive regulation should be implemented to the quality of voltage and energy-conservation of distribution system, should solves harmonic wave, reactive-load compensation simultaneously
Problem is adjusted with balancing the loadization.And existing harmonic filtering installation, because volume is big, it is right on substation busbars to be all mounted in
Big harmonic source carries out Concetrated control.And for harmonic wave caused by scatteredload, it is necessary to which scattered administer on the spot just can effectively improve
Power supply quality.Domestic enterprise realizes electric energy quality optimizing control function using SVG at present, but cost is high, makes an uproar because SVG is present
The intrinsic problem that sound is big, oneself power consumption is big (5%), is unsuitable in low-voltage power distribution station area application.And simple condenser type is adjusted and mends dress
Put and due to its principle reason, when inductive reactive power deficiency in load system, its balancing the load ability is restricted, and for
Harmonic wave in load is again helpless.Therefore in the market lacks one kind and is applied to low-pressure system and there is tune to mend three kinds of work(of filter simultaneously
Can low cost, small size, low-power consumption high performance-price ratio electric energy quality optimizing device product.
Utility model content
The purpose of this utility model is overcome the deficiencies in the prior art, there is provided a kind of reasonable in design, production cost it is low and
Have concurrently to adjust and mend and the reactive-load compensation for low-pressure system of filter function and suppression harmonic wave system.
The utility model solves its technical problem and takes following technical scheme to realize：
A kind of reactive-load compensation for low-pressure system and suppression harmonic wave system, including distributed board outdoor and its tune of inside are mended
Filter circuit；It is described to adjust benefit filter circuit to include ITD condenser types tune benefit device and DL type CSVG electronic modules；The DL types CSVG
The input of electronic module adjusts benefit device to be connected by RS485 interfaces with ITD condenser types, passes through ITD condenser types for gathering
Adjust and mend the voltage x current value that device tracking adjusts the power network after mending；The DL types CSVG electronic modules are also connected with power network, are used for
The voltage x current value of collection power network in real time, and dynamic passive compensation and filtering process are carried out to the voltage x current of power network；The ITD
Condenser type adjust mend device include measurement module, human-computer interactive control module, power module, multiple switch module and with it is the multiple
Switch module multiple capacitor banks correspondingly；The input of the switch module is connected with three-phase alternating current, the switch
The output end of module is connected with corresponding capacitor bank respectively；The input of the power module is electrically connected with three-phase alternating current
Connect, the output end of the power module is connected with measurement module, human-computer interactive control module and multiple switch module respectively, is used for
It is other module for power supply that three-phase alternating current, which is changed into after direct current,；The input of the measurement module is connected with power network, is used for
Gather the alternating voltage current data of power network output；The output end of the measurement module is also connected with human-computer interaction module；Institute
The output end for stating human-computer interaction module is connected with multiple switch module respectively, for the alternating voltage electric current exported according to power network
Data send control instruction to switch module；The output end of the multiple switch module is connected with corresponding capacitor bank, uses
In the switching that control instruction control capacitor bank is sent according to switch module.
Moreover, the ITD condenser types adjust benefit device to be connected by RS232 interface with GPRS communication module, pass through
A service data distant place is transmitted and stored by Internet.
The advantages of the utility model and good effect are：
1st, the utility model provides a kind of electric energy quality optimizing control system available for low-pressure system, and uses combined type
Circuit structure, it can realize that tune mends three kinds of functions of filter simultaneously, meet the needs of China's distribution network transform.
2nd, the utility model employs DL type CSVG modules and ITD types condenser type is adjusted and mends the technical side that apparatus module blends
Formula, both strong points given full play to, realizes Large Copacity dynamic optimization quality of power supply function.
3rd, the utility model is adjusted to stablize in the range of complementary energy power in device realizes mains side three-phase balance, has power consumption
Low, the advantages of noise is small, response is fast, reliability is high, small volume.
4th, ITD types electric capacity of the present utility model adjusts benefit device not only to realize reactive power compensation, can also realize
Work(power three it is alternate carry out equalization adjustment, realize three-phase balance, power factor significantly cuts down zero close to 1, to reach
Line current, distribution electricity damage is further reduced, improves power supply quality.
5th, the utility model has the interface of standard 232, exportable service data, is connected, passes through with GPRS communication module
A service data distant place can be transmitted and stored by Internet, facilitate operations staff to supervise the running status of transformer and device
Control.
Brief description of the drawings
Fig. 1 is internal circuit connection diagram of the present utility model；
Fig. 2 is that IDT types condenser type of the present utility model adjusts the internal circuit block diagram for mending device.
Embodiment
The utility model embodiment is described in further detail below in conjunction with accompanying drawing：
A kind of reactive-load compensation for low-pressure system and suppress harmonic wave system, as shown in figure 1, including distributed board outdoor and its
Internal tune mends filter circuit；It is described to adjust benefit filter circuit to include ITD condenser types tune benefit device and DL type CSVG electronic modules；Institute
State DL type CSVG electronic modules adjusts benefit device to be connected with ITD condenser types, and device tracking is mended for gathering to adjust by ITD condenser types
Adjust the voltage x current value of the power network after mending；The DL types CSVG electronic modules are also connected with power network, for gathering power network in real time
Voltage x current value, and dynamic passive compensation and filtering process are carried out to the voltage x current of power network.
In the present embodiment, the ITD condenser types, which are adjusted, mends device as shown in Fig. 2 including measurement module, human-computer interactive control
Module, power module, multiple switch module and with the multiple switch module multiple capacitor banks correspondingly；The measurement
Module, human-computer interactive control module are connected with switch module by bus；The input and three-phase alternating current of the switch module
Be electrically connected and connect, the output end of the switch module by the magnetic latching relay in its circuit respectively with corresponding capacitor bank
Three individual event capacitors are connected；The input of the power module is connected with three-phase alternating current, the output of the power module
End is connected with measurement module, human-computer interactive control module and multiple switch module respectively, for three-phase alternating current to be changed into straight
It is other module for power supply after stream electricity；The input of the measurement module is connected with power network, for gathering the exchange of power network output
Voltage x current data；The output end of the measurement module is also connected with human-computer interaction module；The human-computer interaction module it is defeated
Go out end respectively with multiple switch module to be connected, the alternating voltage current data for being exported according to power network is sent to switch module
Control instruction；The output end of the multiple switch module is connected with corresponding capacitor bank, for being sent according to switch module
Control instruction controls the switching of capacitor bank.
In the present embodiment, the DL types CSVG electronic modules adjust benefit device to be connected by RS485 interfaces with ITD condenser types
Connect, the voltage x current data mended device and adjust power network after benefit are adjusted for gathering ITD condenser types.
In the present embodiment, the ITD condenser types adjust benefit device to be connected by RS232 interface with GPRS communication module,
A service data distant place is transmitted and stored by Internet.
The IDT types condenser type adjusts the operation principle for mending device to be：
The measurement module carries out data acquisition to alternating voltage, the current signal of power network and calculating is handled, and will calculate
Result is exported to human-computer interactive control module, human-computer interactive control module by fieldbus and exported according to measurement module
Result data carries out analysis calculating, then sends action control to multiple switch module according to its internal control strategy set in advance
System instruction, switch module magnetic latching relay closure in control circuit or is disconnected according to receiving control instruction, and then control
The switching of multiple capacitor banks, reach and differential tracking tune benefit has been carried out to the basic crack of varying loading.
The operation principle of the DL types CSVG electronic modules is：
The DL types CSVG electronic modules include：Data acquisition unit, control arithmetic element and exchange output unit；The number
It is connected according to collecting unit, control arithmetic element with output unit is exchanged；The data acquisition unit uses real-time data acquisition
Technology and Dynamic Tracing Technology constantly monitor the voltage x current value of power network, and by the collection of RS485 interfaces by the integration of IDT types
The associated technical parameters such as the voltage x current data of system or power network after the compensation of automated capacitive formula compensation device；The control computing
Unit is made up of the DSP control system using ADMC401 high-speed digital video cameras chip as core, and it has high processing speed
Controlling switch occurs for degree and 6 special road PWM ripples, and ADMC401 digital signal processing chips are by the related data of collection
Reason, the parameter such as reactive-load compensation and the voltage x current value of harmonic carcellation and delay angle needed for calculating, DSP control system is except complete
Sent into IGBT beyond control signal, can also complete the functions such as detection, the man-machine interaction of three-phase alternating current and voltage；It is described
Output unit is exchanged by the inverter circuit that IGBT module is formed by after the full-wave rectifying circuit rectification being made up of Power Diode Pumped
DC voltage carries out inversion to produce alternating voltage corresponding with system, so as to produce required exchange reactive power, to system
Or power network carries out reactive-load compensation.
It is conventional commercially available production that DL types CSVG electronic modules and ITD condenser types, which are adjusted and mend device, used by the utility model
Product.
Operation principle of the present utility model is：
Adjust benefit device to carry out the basic crack of system or the varying loading of power network differential tracking by IDT types electric capacity first to adjust
Mend, then by the real-time data acquisition and Dynamic Tracing Technology of DL type CSVG electronic modules, collection in real time and monitoring power network and
The voltage x current of system or power network after IDT type integration automated capacitives formula is adjusted and mends device compensation, and idle benefit needed for calculating
Repay with the parameter such as the voltage x current value of harmonic carcellation and delay angle, finally via in DL type CSVG electronic modules with IGBT
System or power network are arrived for the current transforming unit output compensation of core, and then the remaining variable quantity of the varying loading of system or power network enters
Mobile state, which is adjusted, to be mended, while filters out 3,5,7,11,13 subharmonic, makes it in the continuous compensation adjustment system reactive power of Rapid Circulation
While, can be with the harmonic wave of bucking-out system.
It is emphasized that embodiment described in the utility model is illustrative, rather than it is limited, therefore this reality
It is every new according to this practicality by those skilled in the art with the new embodiment including being not limited to described in embodiment
The other embodiment that the technical scheme of type is drawn, also belong to the scope of the utility model protection.
Claims (2)
1. a kind of reactive-load compensation for low-pressure system and suppression harmonic wave system, it is characterised in that：Including distributed board outdoor and its
Internal tune mends filter circuit；It is described to adjust benefit filter circuit to include ITD condenser types tune benefit device and DL type CSVG electronic modules；Institute
The input for stating DL type CSVG electronic modules adjusts benefit device to be connected by RS485 interfaces with ITD condenser types, passes through for gathering
ITD condenser types, which are adjusted, mends the voltage x current value that device tracking adjusts the power network after mending；The DL types CSVG electronic modules also with power network phase
Connection, carried out for gathering the voltage x current value of power network in real time, and to the voltage x current of power network at dynamic passive compensation and filtering
Reason；The ITD condenser types adjust mend device include measurement module, human-computer interactive control module, power module, multiple switch module and
With the multiple switch module multiple capacitor banks correspondingly；The input of the switch module is electrically connected with three-phase alternating current
Connect, the output end of the switch module is connected with corresponding capacitor bank respectively；The input of the power module intersects with three
Stream, which is electrically connected, to be connect, the output end of the power module respectively with measurement module, human-computer interactive control module and multiple switch module phase
Connection, is other module for power supply for three-phase alternating current to be changed into after direct current；The input of the measurement module and power network phase
Connection, for gathering the alternating voltage current data of power network output；The output end of the measurement module also with human-computer interaction module
It is connected；The output end of the human-computer interaction module is connected with multiple switch module respectively, for the friendship exported according to power network
Stream voltage x current data send control instruction to switch module；The output end of the multiple switch module and corresponding capacitor bank
It is connected, for sending the switching of control instruction control capacitor bank according to switch module.
2. a kind of reactive-load compensation for low-pressure system according to claim 1 and suppression harmonic wave system, it is characterised in that：
The ITD condenser types, which are adjusted, to be mended device and is connected by RS232 interface with GPRS communication module, by Internet by service data
Transmit and store in a distant place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720780057.7U CN206850441U (en) | 2017-06-30 | 2017-06-30 | A kind of reactive-load compensation for low-pressure system and suppression harmonic wave system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720780057.7U CN206850441U (en) | 2017-06-30 | 2017-06-30 | A kind of reactive-load compensation for low-pressure system and suppression harmonic wave system |
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| Publication Number | Publication Date |
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| CN206850441U true CN206850441U (en) | 2018-01-05 |
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| CN201720780057.7U Expired - Fee Related CN206850441U (en) | 2017-06-30 | 2017-06-30 | A kind of reactive-load compensation for low-pressure system and suppression harmonic wave system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113746117A (en) * | 2021-09-15 | 2021-12-03 | 南方电网电力科技股份有限公司 | Unbalanced three-phase administers module and portable power source car |
-
2017
- 2017-06-30 CN CN201720780057.7U patent/CN206850441U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113746117A (en) * | 2021-09-15 | 2021-12-03 | 南方电网电力科技股份有限公司 | Unbalanced three-phase administers module and portable power source car |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180105 |