CN110112739A - Wisdom energy conservation regulation and control system - Google Patents
Wisdom energy conservation regulation and control system Download PDFInfo
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- CN110112739A CN110112739A CN201910498696.8A CN201910498696A CN110112739A CN 110112739 A CN110112739 A CN 110112739A CN 201910498696 A CN201910498696 A CN 201910498696A CN 110112739 A CN110112739 A CN 110112739A
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- 238000004134 energy conservation Methods 0.000 title claims abstract description 18
- 230000033228 biological regulation Effects 0.000 title claims abstract description 16
- 238000004146 energy storage Methods 0.000 claims abstract description 24
- 238000004458 analytical method Methods 0.000 claims abstract description 18
- 230000003068 static effect Effects 0.000 claims abstract description 17
- 238000005457 optimization Methods 0.000 claims abstract description 10
- 238000004891 communication Methods 0.000 claims abstract description 4
- 230000005611 electricity Effects 0.000 claims description 13
- 239000003990 capacitor Substances 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 8
- 238000004364 calculation method Methods 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims description 4
- 229910052744 lithium Inorganic materials 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 239000000284 extract Substances 0.000 claims description 2
- 230000007547 defect Effects 0.000 abstract description 2
- 230000002500 effect on skin Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/01—Arrangements for reducing harmonics or ripples
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
-
- 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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
It adjusts and controls the present invention relates to power grid energy conservation, more particularly to wisdom energy conservation regulation and control system, including controller, controller is connected with the electric network data acquisition module for acquiring grid operation data, grid operation data is sent to grid operation data platform to controller by module by wireless communication, controller is connected with the Active Power Filter-APF for administering mains by harmonics, controller is connected with the static reactive generator for dynamically compensating power system reactive power, controller is connected with the frequency analysis module for being calculated mains by harmonics loss, controller is connected with for temporarily dropping the Voltage Sag Analysis module classified to network voltage, controller with for being connected to the network optimization module that operation of power networks state optimizes；The defect that technical solution provided by the invention can effectively overcome shortage present in the prior art to adjust control to power grid intelligent power saving, cannot adjust energy storage device output power according to the actual situation.
Description
Technical field
It adjusts and controls the present invention relates to power grid energy conservation, and in particular to wisdom energy conservation regulation and control system.
Background technique
Power grid energy consumption is concentrated mainly on transmission line of electricity and user demand side, in 10KV or less distribution network, especially with
In the distribution network of 0.4KV grade, since a large amount of industrial or agricultural equipment access extensively, the household electricity of urban and rural residents rises year by year,
Various electric energy contaminated equipments are widely used, and bring huge energy loss to power grid.On the other hand, with modern power network
The variation of development and load structure, power quality problem have caused the great attention for electricity consumption both sides.Modern society gradually at
It, can to power supply for based on the era of knowledge-driven economy of high-tech technology, the information user sensitive to power quality becomes mainstream
Requirement by property is higher and higher.Therefore, comprehensive multilevel coordination control is carried out to the power quality of low and medium voltage distribution network, and takes and arranges
It is energy-saving to apply progress, is the inexorable trend of planning for the expansion of power grids and construction.
It is existing it is domestic in relation to power grid saving energy and decreasing loss systematic research remain in it is independent, to the offline of certain regional power grid
The line loss calculation stage, and these systems are grasped by different units respectively, lack integration, Inter-System Information integrated level is not high, fortune
Administrative staff can not grasp the real-time working condition with electricity operation, and distribution power dispatch system operation and management level is still lower.
In the prior art, the intelligent allotment of power grid is as the optimization of control chip gradually obtains the weight of practitioner
Depending on gradually popularizing for generation of electricity by new energy, being generated electricity using new energy such as photovoltaic, wind-force and being quoted extensively, while electricity
Pond can effectively carry out standby energy storage.But battery as standby energy storage when, due to photovoltaic, wind-force etc. generate electricity it is unstable, cause
Battery access times are more, and the service life of battery plays a key effect for the cost of entire power grid.How optimal control is electric
The access times in pond are to need to pay attention in distributed power generation, and the smart grid in future.In addition, not having in the prior art
There is the output power in view of adjusting energy storage device according to the particular state and operation of power networks situation of power generator.
Summary of the invention
(1) the technical issues of solving
For disadvantages mentioned above present in the prior art, the present invention provides wisdom energy conservation regulation and control system, Neng Gouyou
Effect overcomes shortage present in the prior art to adjust control to power grid intelligent power saving, cannot adjust energy storage device according to the actual situation
The defect of output power.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs:
Wisdom energy conservation regulation and control system, including controller, the controller and the electricity for acquiring grid operation data
Network data acquisition module is connected, and grid operation data is sent to grid operation data to the controller by module by wireless communication
Platform, the controller are connected with the Active Power Filter-APF for administering mains by harmonics, the controller be used to dynamically mend
Repay power system reactive power static reactive generator be connected, the controller with for mains by harmonics be lost calculated it is humorous
Wave analysis module is connected, and the controller is connected with for temporarily dropping the Voltage Sag Analysis module classified to network voltage,
The controller with for being connected to the network optimization module that operation of power networks state optimizes, the network optimization module and institute
State Active Power Filter-APF, static reactive generator is connected；
The controller is connected with the first converter for the electric energy that power generator generates to be connected to the grid, the control
Device with for the second converter of power grid access load to be connected, the controller be used to for the electric energy in energy storage device being incorporated to
The third converter of power grid is connected, and the controller and connects the compensator between second converter and load for compensation
It is connected, the controller adjusts the output work of the energy storage device according to the offset data of grid operation data and the compensator
Rate improves the access times of the energy storage device.
Preferably, the Active Power Filter-APF is calculated by internal DSP, extracts the harmonic components of load current, is led to
It crosses pwm signal and is sent to internal IGBT, control inverter generates one and load harmonic current is equal in magnitude, contrary humorous
Wave electric current inputs power grid.
Preferably, the controller analyzes power grid current operating conditions according to grid operation data, the control
Device provides compensation driving signal to the static reactive generator, is issued and is mended by the inversion circuit that power electronic circuit.capacitor forms
Repay electric current.
Preferably, the static reactive generator includes detection module, control computing module and compensates output module, described
Detection module, control computing module and compensation output module are all made of IGBT composition from commutation bridge circuit, simultaneously by reactor
It is associated on power grid.
Preferably, the frequency analysis module analyzes harmonic trend distribution by harmonic flow calculation, according to harmonic loss
Algorithm and harmonic wave kelvin effect carry out practical harmonic loss and calculate.
Preferably, the Voltage Sag Analysis module is temporarily dropped according to different voltages and is drawn by the calculating to voltage effective value
Rise temporary decline size, temporarily drop at the end of whether generate whether voltage jump, three-phase voltage balance and whether voltage occurs
It temporarily rises, realizes the classification to voltage dip type.
Preferably, first converter includes DC/AC converter, booster；Second converter includes that AC/DC becomes
Parallel operation, reducing transformer；The third converter includes inverse-excitation type boosting DC/DC converter, DC/AC converter.
Preferably, the energy storage device includes lithium battery, super capacitor.
(3) beneficial effect
Compared with prior art, wisdom energy conservation regulation and control system provided by the present invention has the advantages that
(1), electric network data acquisition module acquires grid operation data, and Active Power Filter-APF administers mains by harmonics, static
Reacance generator dynamic compensation power system reactive power, dynamic compensate power system reactive power and calculate mains by harmonics loss, electricity
Pressure, which temporarily drops analysis module and temporarily drops to network voltage, classifies, and network optimization module optimizes operation of power networks state, thus
It can be realized power grid intelligent power saving and adjust control；
(2), the electric energy that power generator generates is connected to the grid by the first converter, and power grid is accessed and loaded by the second converter,
Electric energy in energy storage device is connected to the grid by third converter, and compensator connects for compensating between the second converter and load,
Controller adjusts the output power of energy storage device according to grid operation data and the offset data of compensator, improves energy storage device
Access times.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described.It should be evident that the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is present system schematic diagram.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described.Obviously, described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Wisdom energy conservation regulation and control system, as shown in Figure 1, include controller, controller with for acquiring operation of power networks number
According to electric network data acquisition module be connected, grid operation data is sent to operation of power networks number to controller by module by wireless communication
According to platform, controller is connected with the Active Power Filter-APF for administering mains by harmonics, controller be used to dynamically compensate power grid
The static reactive generator of reactive power is connected, controller and the frequency analysis module for being calculated mains by harmonics loss
It is connected, controller is connected with for temporarily drop the Voltage Sag Analysis module classified to network voltage, controller and is used for pair
The network optimization module that operation of power networks state optimizes is connected, network optimization module and Active Power Filter-APF, static reacance
Generator is connected；
Controller is connected with for the first converter that the electric energy that power generator generates is connected to the grid, controller be used for
Second converter of power grid access load is connected, controller becomes with the third for the electric energy in energy storage device to be connected to the grid
Parallel operation is connected, and controller is connected with the compensator for being used for compensation between the second converter and load is connect, and controller is according to power grid
Operation data and the offset data of compensator adjust the output power of energy storage device, improve the access times of energy storage device.
Active Power Filter-APF is calculated by internal DSP, is extracted the harmonic components of load current, is sent out by pwm signal
Internal IGBT is given, control inverter generates a harmonic current input equal in magnitude, contrary with load harmonic current
Power grid.
Controller analyzes power grid current operating conditions according to grid operation data, and controller occurs to static reacance
Device provides compensation driving signal, issues compensation electric current by the inversion circuit that power electronic circuit.capacitor forms.
Static reactive generator includes detection module, control computing module and compensation output module, detection module, control fortune
It calculates module and compensation output module is all made of IGBT composition from commutation bridge circuit, be connected in parallel on power grid by reactor.
Frequency analysis module analyzes harmonic trend distribution by harmonic flow calculation, according to harmonic loss algorithm and harmonic wave collection
Skin effect carries out practical harmonic loss and calculates.
Caused temporary decline temporarily drops by the calculating to voltage effective value, according to different voltages in Voltage Sag Analysis module
Whether size generates whether voltage jump, three-phase voltage balance and whether occur voltage swell at the end of temporarily dropping, and realizes to electricity
The classification of type temporarily drops in pressure.
First converter includes DC/AC converter, booster；Second converter includes AC/DC converter, reducing transformer；The
Three converters include inverse-excitation type boosting DC/DC converter, DC/AC converter.
Energy storage device includes lithium battery, super capacitor.
Electric network data acquisition module acquires grid operation data, and Active Power Filter-APF administers mains by harmonics, static reacance
Generator dynamic compensation power system reactive power, dynamic compensate power system reactive power and calculate mains by harmonics loss, and voltage is temporary
Network voltage temporarily drops in drop analysis module classifies, and network optimization module optimizes operation of power networks state, so as to
Realize that power grid intelligent power saving adjusts control.
Active Power Filter-APF is calculated by internal DSP, is extracted the harmonic components of load current, is sent out by pwm signal
Internal IGBT is given, control inverter generates a harmonic current input equal in magnitude, contrary with load harmonic current
Power grid.
Controller analyzes power grid current operating conditions according to grid operation data, and controller occurs to static reacance
Device provides compensation driving signal, issues compensation electric current by the inversion circuit that power electronic circuit.capacitor forms.
Static reactive generator includes detection module, control computing module and compensation output module, detection module, control fortune
It calculates module and compensation output module is all made of IGBT composition from commutation bridge circuit, be connected in parallel on power grid by reactor.
Frequency analysis module analyzes harmonic trend distribution by harmonic flow calculation, according to harmonic loss algorithm and harmonic wave collection
Skin effect carries out practical harmonic loss and calculates.
Caused temporary decline temporarily drops by the calculating to voltage effective value, according to different voltages in Voltage Sag Analysis module
Whether size generates whether voltage jump, three-phase voltage balance and whether occur voltage swell at the end of temporarily dropping, and realizes to electricity
The classification of type temporarily drops in pressure.
The electric energy that power generator generates is connected to the grid by the first converter, and power grid is accessed and loaded by the second converter, third
Electric energy in energy storage device is connected to the grid by converter, and compensator connects between the second converter and load for compensating, and controls
Device adjusts the output power of energy storage device according to grid operation data and the offset data of compensator, improves the use of energy storage device
Number.
First converter includes DC/AC converter, booster；Second converter includes AC/DC converter, reducing transformer；The
Three converters include inverse-excitation type boosting DC/DC converter, DC/AC converter, and energy storage device includes lithium battery, super capacitor.
It is worth noting that, the purpose of the present invention is merely provided for a kind of hardware configuration different from the prior art, make
Technical staff can realize further exploitation under such hardware configuration, can be in the later period by this field as software program
Programming personnel is programmed according to actual effect needs.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
Invention is explained in detail, those skilled in the art should understand that: it still can be to aforementioned each implementation
Technical solution documented by example is modified or equivalent replacement of some of the technical features；And these modification or
Replacement, can't be such that the essence of corresponding technical solution departs from the spirit and scope of the technical scheme of various embodiments of the present invention.
Claims (8)
1. wisdom energy conservation regulation and control system, including controller, it is characterised in that: the controller with for acquiring operation of power networks
The electric network data acquisition modules of data is connected, and grid operation data is sent to power grid to the controller by module by wireless communication
Operation data platform, the controller are connected with the Active Power Filter-APF for administering mains by harmonics, the controller and use
It is connected in the static reactive generator of dynamic compensation power system reactive power, the controller is carried out with for mains by harmonics to be lost
The frequency analysis module of calculating is connected, the controller with for temporarily dropping the Voltage Sag Analysis mould classified to network voltage
Block be connected, the controller be used for be connected to the network optimization module that operation of power networks state optimizes, the network optimization
Module is connected with the Active Power Filter-APF, static reactive generator；
The controller is connected with for the first converter that the electric energy that power generator generates is connected to the grid, the controller and
For the second converter of power grid access load to be connected, the controller be used to for the electric energy in energy storage device being connected to the grid
Third converter be connected, the controller with connect second converter and load between for compensation compensator phase
Even, the controller adjusts the output work of the energy storage device according to the offset data of grid operation data and the compensator
Rate improves the access times of the energy storage device.
2. wisdom energy conservation regulation and control system according to claim 1, it is characterised in that: the Active Power Filter-APF is logical
It crosses internal DSP to calculate, extracts the harmonic components of load current, internal IGBT is sent to by pwm signal, control inverter produces
Raw one harmonic current equal in magnitude, contrary with load harmonic current inputs power grid.
3. wisdom energy conservation regulation and control system according to claim 1, it is characterised in that: the controller is transported according to power grid
Row data analyze power grid current operating conditions, and the controller provides compensation driving letter to the static reactive generator
Number, compensation electric current is issued by the inversion circuit that power electronic circuit.capacitor forms.
4. wisdom energy conservation regulation and control system according to claim 3, it is characterised in that: the static reactive generator packet
Include detection module, control computing module and compensation output module, the detection module, control computing module and compensation output module
IGBT composition is all made of from commutation bridge circuit, is connected in parallel on power grid by reactor.
5. wisdom energy conservation regulation and control system according to claim 1, it is characterised in that: the frequency analysis module passes through
Harmonic flow calculation analyzes harmonic trend distribution, carries out practical harmonic loss meter according to harmonic loss algorithm and harmonic wave kelvin effect
It calculates.
6. wisdom energy conservation regulation and control system according to claim 1, it is characterised in that: the Voltage Sag Analysis module
By the calculating to voltage effective value, whether temporary decline size caused by temporarily being dropped according to different voltages generates at the end of temporarily dropping
Whether voltage jump, three-phase voltage balance and whether occur voltage swell, realize the classification to voltage dip type.
7. wisdom energy conservation regulation and control system according to claim 1, it is characterised in that: first converter includes
DC/AC converter, booster；Second converter includes AC/DC converter, reducing transformer；The third converter includes anti-
Swash formula boosting DC/DC converter, DC/AC converter.
8. wisdom energy conservation regulation and control system according to claim 1, it is characterised in that: the energy storage device includes lithium electricity
Pond, super capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910498696.8A CN110112739A (en) | 2019-06-10 | 2019-06-10 | Wisdom energy conservation regulation and control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910498696.8A CN110112739A (en) | 2019-06-10 | 2019-06-10 | Wisdom energy conservation regulation and control system |
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| Publication Number | Publication Date |
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| CN110112739A true CN110112739A (en) | 2019-08-09 |
Family
ID=67494488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910498696.8A Pending CN110112739A (en) | 2019-06-10 | 2019-06-10 | Wisdom energy conservation regulation and control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110504687A (en) * | 2019-08-16 | 2019-11-26 | 深圳市伊力科电源有限公司 | Power quality harnessed synthetically system and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120112714A1 (en) * | 2009-07-27 | 2012-05-10 | Andres Agudo Araque | Reactive power compensation in electrical power system |
| CN106026096A (en) * | 2016-06-29 | 2016-10-12 | 南京软核科技有限公司 | SVG-based multi-level coordination energy-saving optimization control system for distribution network |
| CN106487015A (en) * | 2016-06-29 | 2017-03-08 | 南京软核科技有限公司 | A kind of power distribution network multilevel coordination control system and its energy conservation optimizing method |
| CN206790103U (en) * | 2017-05-05 | 2017-12-22 | 天津市三源电力设备制造有限公司 | A kind of voltage dip/temporarily rise controlling device |
| CN109638864A (en) * | 2018-12-30 | 2019-04-16 | 郑力文 | A kind of control system of smart grid |
-
2019
- 2019-06-10 CN CN201910498696.8A patent/CN110112739A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120112714A1 (en) * | 2009-07-27 | 2012-05-10 | Andres Agudo Araque | Reactive power compensation in electrical power system |
| CN106026096A (en) * | 2016-06-29 | 2016-10-12 | 南京软核科技有限公司 | SVG-based multi-level coordination energy-saving optimization control system for distribution network |
| CN106487015A (en) * | 2016-06-29 | 2017-03-08 | 南京软核科技有限公司 | A kind of power distribution network multilevel coordination control system and its energy conservation optimizing method |
| CN206790103U (en) * | 2017-05-05 | 2017-12-22 | 天津市三源电力设备制造有限公司 | A kind of voltage dip/temporarily rise controlling device |
| CN109638864A (en) * | 2018-12-30 | 2019-04-16 | 郑力文 | A kind of control system of smart grid |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110504687A (en) * | 2019-08-16 | 2019-11-26 | 深圳市伊力科电源有限公司 | Power quality harnessed synthetically system and method |
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Application publication date: 20190809 |