CN208623392U - A kind of complex electric energy comprehensive quality control device - Google Patents
A kind of complex electric energy comprehensive quality control device Download PDFInfo
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- CN208623392U CN208623392U CN201821301288.6U CN201821301288U CN208623392U CN 208623392 U CN208623392 U CN 208623392U CN 201821301288 U CN201821301288 U CN 201821301288U CN 208623392 U CN208623392 U CN 208623392U
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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
- Y02E40/50—Arrangements for eliminating or reducing asymmetry in polyphase networks
-
- 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
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/20—Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or systems
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/22—Flexible AC transmission systems [FACTS] or power factor or reactive power compensating or correcting units
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Abstract
The utility model relates to a kind of complex electric energy comprehensive quality control devices, phase-change switch including reactive power compensator and more than one, control module includes data acquisition and procession unit, remote communication interface and control and monitoring unit, control and monitoring unit are according to data acquisition and procession unit, operation obtains the charge value of grid side and load-side respectively, when the tri-phase unbalance factor of grid side or load-side exceeds specified value, control and the phase-change switch of monitoring unit control load-side carry out commutation, so that the tri-phase unbalance factor of grid side or load-side infinitely meets specified value；When the tri-phase unbalance factor of grid side or load-side is in allowable range, the primary circuit is output control signals to monitoring unit by controlling, the active inverter split-phase in primary circuit is set to export compensation electric current, so that grid side tri-phase unbalance factor infinitely tends to balance.The utility model can realize that the tri-phase unbalance factor of grid side and load-side infinitely tends to balance.
Description
Technical field
The utility model relates to a kind of complex electric energy comprehensive quality control devices.
Background technique
In power distribution network, there is various nonlinear-loads, such as capacitive, perception, impact, sensibility, by
This brings a series of power quality problem to power distribution network, as tri-phase unbalance factor is high, power factor is low, voltage and current is abnormal
Change, the positive and negative imbalance of voltage and current etc..To solve the above-mentioned problems, generally there are following methods:
1, passive reacance generator is taken selectively to compensate improvement specific in transformer output port and/or load side
The reactive capability of capacity, has at low cost, but is unable to the variation of follow load, is easy to appear overfill and underfill.
2, it takes SVC reacance generator selective and step-type compensation is administered in transformer output port and/or born
The specific reactive capability in lotus end can in real time, steppingly track small-scale load variations, and cost is than passive reacance generator
Height, and it is unable to linear compensation improvement, it is easy to appear overfill and underfill.
3, take SVG (static reactive generator) that the tri-phase unbalance factor of transformer output port, optimization power can be administered
Factor and voltage/current output waveform, moreover it is possible to linearly, the load variations of real-time tracking gamut, but transmission of electricity cannot be administered
Three-phase load unbalance on route, line loss is big, and waste of energy is serious.
In conclusion Comprehensive is unable to upper type, linearly, combine grid side and load-side in real time
Power quality problem.
Summary of the invention
The purpose of the utility model is to overcome the defects of the prior art, and grid side and load can be combined by providing one kind
Side, comprehensively, in real time, linearly comprehensive treatment grid power quality, response is fast, the good complex electric energy comprehensive quality control dress of effect
It sets.
To achieve the above object, the utility model uses such a complex electric energy comprehensive quality control device, including nothing
The phase-change switch of the phase-change switch of Reactive power compensation installations and more than one, the more than one can be respectively arranged at corresponding branch
The front end of single-phase load, the reactive power compensator include primary circuit and control module, the primary circuit include according to
Breaker, pre-charge module, passive filter and the active inverter of secondary connection, the control module include
Data acquisition and procession unit, for acquiring and handling grid side three-phase voltage signal, grid side three-phase current letter
Number and load-side current signal；
Remote communication interface exchanges information for the phase-change switch transmission control signal into system, and with backstage；
Control and monitoring unit, according to the data acquisition and procession unit, operation obtains grid side and load respectively
The charge value of side, the charge value include voltage value, current value, power factor, harmonic value, the positive and negative degree of unbalancedness of voltage, electricity
Flow positive and negative degree of unbalancedness, active power, reactive power, apparent capacity, voltage between phases degree of unbalancedness, three-phase current degree of unbalancedness,
Alternate active power degree of unbalancedness, alternate reactive power degree of unbalancedness, alternate apparent capacity degree of unbalancedness, tri-phase unbalance factor,
Leakage current, when the tri-phase unbalance factor of grid side or load-side exceeds specified value, the control and monitoring unit control are negative
The phase-change switch for carrying side carries out commutation, so that the tri-phase unbalance factor of grid side or load-side infinitely meets specified value；Work as power grid
When the tri-phase unbalance factor of side or load-side is in allowable range, output control signals to by the control with monitoring unit
The primary circuit makes the active inverter split-phase in the primary circuit export compensation electric current, so that grid side three-phase
Degree of unbalancedness infinitely tends to balance.
Particularly, when the power factor of grid side or load-side exceeds setting value, by the control and monitoring unit
The primary circuit is output control signals to, so that the active inverter in the primary circuit is absorbed or is issued and meets the requirements
Reactive current so that the power factor of grid side or load-side infinitely meet setting value requirement；When grid side or load-side
When harmonic value exceeds setting value, the primary circuit is output control signals to by the control and monitoring unit, it is described
Active inverter in primary circuit exports the harmonic current offseted with the harmonic current detected, so that grid side or load
The harmonic value of side infinitely meets setting value requirement.Compared with the prior art, the beneficial effects of the utility model are embodied in: by adopting
It is designed with above structure, by the unified acquisition of reactive power compensator, the charge value of operation grid side and load-side, when three-phase injustice
When weighing apparatus degree exceeds specified value, each phase-change switch is output control signals to through remote communication interface first, so that changing in system
Mutually switch response action first, the preferential tri-phase unbalance factor for adjusting transmission line of electricity, when tri-phase unbalance factor is in allowable range
When interior, then the active inverter split-phase output reactive compensation electric current in primary circuit is controlled, so that grid side tri-phase unbalance factor
It infinitely tends to balance, the utility model improves the operational efficiency of transformer, reduces the loss and reactive compensation of transmission line of electricity
The uneven pondage demand of device, and the tri-phase unbalance factor of grid side and load-side infinitely tends to balance, whole system
More preferably, reliability is higher for power quality regulating effect, realizes energy efficiency.
Particularly, the remote communication interface includes serial communication interface and Internet of Things network communication module, described
Serial network communication interface includes RS232, RS485 and/or USB, and the Internet of Things network communication module includes power carrier
Communication module, GPRS communication module, ethernet communication module and WIFI module.Idle benefit is convenient in design through the above structure
It repays the phase-change switch of device and scene, communicated from the background.
Particularly, the reactive power compensator further includes optical communication interface, for the primary circuit with it is described
Control module between control information and acquisition signal bridge joint.Design through the above structure, the control of reactive power compensator
The control signal of molding block and the forceful electric power of primary circuit are kept apart, so that the control of reactive power compensator is relatively reliable.
Particularly, the control module further includes failure and protection location, and the data acquisition and procession module is adopted
In switch state signal, temperature rise value, DC capacitor voltage value and the pre-charge module in the collection active inverter
Protective switch status signal, and according to electrical interlocks principle and operating temperature allowable range, by the failure and protection
Unit, which is respectively combined, outputs control signals to breaker, the pre-charge module and the active inverter.It is logical
The design for crossing the above structure realizes that the defencive function of reactive power compensator is complete.
Detailed description of the invention
Fig. 1 is a kind of functional-block diagram of complex electric energy comprehensive quality control device of the utility model.
Specific embodiment
As shown in Figure 1, a kind of complex electric energy comprehensive quality control device, changing including reactive power compensator and more than one
It mutually switchs, the phase-change switch of more than one can be respectively arranged at the front end of the single-phase load of corresponding branch, reactive power compensator packet
Primary circuit and control module are included, primary circuit includes sequentially connected breaker ZK, pre-charge module, passive filter and has
Source inventer, control module include
Data acquisition and procession unit, for acquiring and handling grid side three-phase voltage signal, grid side three-phase current letter
Number and load-side current signal；
Remote communication interface exchanges information for the phase-change switch transmission control signal into system, and with backstage；
Control and monitoring unit, according to the data acquisition and procession unit, operation obtains grid side and load respectively
The charge value of side, charge value include that voltage value, current value, power factor, harmonic value, the positive and negative degree of unbalancedness of voltage, electric current are positive and negative
Degree of unbalancedness, reactive power, apparent capacity, voltage between phases degree of unbalancedness, three-phase current degree of unbalancedness, alternate has active power
Function unbalanced power degree, alternate reactive power degree of unbalancedness, alternate apparent capacity degree of unbalancedness, tri-phase unbalance factor, leakage current,
When the tri-phase unbalance factor of grid side or load-side exceeds specified value, the phase-change switch of control and monitoring unit control load-side
Commutation is carried out, so that the tri-phase unbalance factor of grid side or load-side infinitely meets specified value；When the three of grid side or load-side
When phase degree of unbalancedness is in allowable range, primary circuit is output control signals to monitoring unit by control, makes primary circuit
In active inverter split-phase output compensation electric current so that grid side tri-phase unbalance factor infinitely tends to balance.
Particularly, it when the power factor of grid side or load-side exceeds setting value, is controlled by control and monitoring unit output
Signal processed absorbs the active inverter in primary circuit or issues the reactive current met the requirements, so that electric to primary circuit
The power factor of net side or load-side infinitely meets setting value requirement；When the harmonic value of grid side or load-side exceeds setting value
When, primary circuit is output control signals to monitoring unit by control, the active inverter in primary circuit is exported and detected
The harmonic current that offsets of harmonic current so that the harmonic value of grid side or load-side infinitely meets setting value requirement.
Remote communication interface includes serial communication interface and Internet of Things network communication module, and serial network communication interface includes
RS232, RS485 and/or USB, Internet of Things network communication module include power carrier communication module, GPRS communication module, ether
Network Communication module and WIFI module.
Reactive power compensator further includes optical communication interface, between primary circuit and control module control information with
Acquire the bridge joint of signal.
Control module further includes failure and protection location, and data acquisition and procession module acquires the switch in active inverter
Protective switch status signal in status signal, temperature rise value, DC capacitor voltage value and pre-charge module, and according to electrical interlocks
Principle and operating temperature allowable range are respectively combined by failure and protection location and output control signals to breaker ZK, preliminary filling
Electric module and active inverter.
Claims (6)
1. a kind of complex electric energy comprehensive quality control device, it is characterised in that: changing including reactive power compensator and more than one
It mutually switchs, the phase-change switch of the more than one can be respectively arranged at the front end of the single-phase load of corresponding branch, the nothing
Reactive power compensation installations include primary circuit and control module, and the primary circuit includes sequentially connected breaker, precharge mould
Block, passive filter and active inverter, the control module include
Data acquisition and procession unit, for acquire and handle grid side three-phase voltage signal, grid side three-phase current signal and
Load-side current signal；
Remote communication interface exchanges information for the phase-change switch transmission control signal into system, and with backstage；
Control and monitoring unit, according to the data acquisition and procession unit, operation obtains grid side and load-side respectively
Charge value, the charge value include voltage value, current value, power factor, harmonic value, the positive and negative degree of unbalancedness of voltage, electric current just
It is negative degree of unbalancedness, active power, reactive power, apparent capacity, voltage between phases degree of unbalancedness, three-phase current degree of unbalancedness, alternate
Active power degree of unbalancedness, alternate reactive power degree of unbalancedness, alternate apparent capacity degree of unbalancedness, tri-phase unbalance factor, electric leakage
Stream, when the tri-phase unbalance factor of grid side or load-side exceeds specified value, the control and monitoring unit control load-side
Phase-change switch carry out commutation so that the tri-phase unbalance factor of grid side or load-side infinitely meets specified value；When grid side or
When the tri-phase unbalance factor of load-side is in allowable range, output control signals to by the control and monitoring unit described
Primary circuit, so that active inverter split-phase in the primary circuit is exported compensation electric current, so that grid side three-phase is uneven
Weighing apparatus degree infinitely tends to balance.
2. complex electric energy comprehensive quality control device according to claim 1, it is characterised in that: the telecommunication connects
Mouthful include serial communication interface and Internet of Things network communication module, the serial communication interface include RS232, RS485 and/or
USB, the Internet of Things network communication module include power carrier communication module, GPRS communication module, ethernet communication module
And WIFI module.
3. complex electric energy comprehensive quality control device according to claim 1 or 2, it is characterised in that: the idle benefit
Repaying device further includes optical communication interface, between the primary circuit and the control module control information with adopt
Collect the bridge joint of signal.
4. complex electric energy comprehensive quality control device according to claim 3, it is characterised in that: the reactive compensation dress
Setting further includes optical communication interface, for the control information and acquisition letter between the primary circuit and the control module
Number bridge joint.
5. complex electric energy comprehensive quality control device according to claim 1 or 2, it is characterised in that: the control mould
Block further includes failure and protection location, the switch shape in the data acquisition and procession module acquisition active inverter
Protective switch status signal in state signal, temperature rise value, DC capacitor voltage value and the pre-charge module, and according to electrical
Principle and operating temperature allowable range are interlocked, is respectively combined by the failure and protection location described in outputing control signals to
Breaker, the pre-charge module and the active inverter.
6. complex electric energy comprehensive quality control device according to claim 3, it is characterised in that: the control module is also
Switch state letter including failure and protection location, in the data acquisition and procession module acquisition active inverter
Number, the protective switch status signal in temperature rise value, DC capacitor voltage value and the pre-charge module, and according to electrical interlocks
Principle and operating temperature allowable range are respectively combined by the failure and protection location and output control signals to described break
Road device, the pre-charge module and the active inverter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821301288.6U CN208623392U (en) | 2018-08-13 | 2018-08-13 | A kind of complex electric energy comprehensive quality control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821301288.6U CN208623392U (en) | 2018-08-13 | 2018-08-13 | A kind of complex electric energy comprehensive quality control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208623392U true CN208623392U (en) | 2019-03-19 |
Family
ID=65716541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821301288.6U Active CN208623392U (en) | 2018-08-13 | 2018-08-13 | A kind of complex electric energy comprehensive quality control device |
Country Status (1)
| Country | Link |
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| CN (1) | CN208623392U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038608A (en) * | 2018-08-13 | 2018-12-18 | 浙江百固电气科技股份有限公司 | A kind of complex electric energy comprehensive quality control system |
| CN110034699A (en) * | 2019-05-21 | 2019-07-19 | 江苏和网源电气有限公司 | A kind of novel inverter and control method |
-
2018
- 2018-08-13 CN CN201821301288.6U patent/CN208623392U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109038608A (en) * | 2018-08-13 | 2018-12-18 | 浙江百固电气科技股份有限公司 | A kind of complex electric energy comprehensive quality control system |
| CN110034699A (en) * | 2019-05-21 | 2019-07-19 | 江苏和网源电气有限公司 | A kind of novel inverter and control method |
| CN110034699B (en) * | 2019-05-21 | 2023-10-10 | 江苏和网源电气有限公司 | Inverter power supply and control method |
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