CN106505601A - A kind of intelligent load device and power transmission line intelligent load system - Google Patents
A kind of intelligent load device and power transmission line intelligent load system Download PDFInfo
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- CN106505601A CN106505601A CN201610945872.4A CN201610945872A CN106505601A CN 106505601 A CN106505601 A CN 106505601A CN 201610945872 A CN201610945872 A CN 201610945872A CN 106505601 A CN106505601 A CN 106505601A
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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
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
-
- 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
-
- 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
-
- 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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The embodiment of the invention discloses a kind of intelligent load device and power transmission line intelligent load system; for solving during the equilibrium of supply and demand for realizing electric power in prior art by power energy storage; power energy storage large-scale development is limited by financial cost and function bottleneck; and using more higher hamonic wave can be produced during reactive-load compensator; device volume is larger, relatively costly technical problem.The embodiment of the present invention includes：Accumulation power supply, two-way DC/DC converters and two-way AC/DC converters；Accumulation power supply is connected with two-way DC/DC converters；Two-way DC/DC converters are connected with two-way AC/DC converters；Two-way AC/DC converters are connected with load in electrical network；Two-way DC/DC converters are also associated with two-way DC/DC control modules；Two-way AC/DC converters are also associated with two-way AC/DC control modules.
Description
Technical field
The present invention relates to transmission line of electricity voltage-regulation field, more particularly to a kind of intelligent load device and power transmission line intelligent
Load system.
Background technology
With the continuous expansion of electrical network scale, traditional energy supplies growing tension, and user power utilization demand is improved constantly, in electricity
Source, distributed power generation start the permeabilities of the discontinuity new forms of energy in electrical network such as access electrical network, solar energy, wind energy and constantly increase
Plus；In load side, the use of a large amount of power electronic devices and high power nonlinear load, such as electric arc furnaces and cold rolling mill,
Also jumbo single-phase load so that the spread of voltage of low-voltage network, power supply quality are uneven.For improving voltage
Fluctuation, in power system, frequently with concentration or the reactive power compensation mode of local compensation, mainly includes static var compensation
Repay device (SVC) and static reacance generator (SVG), Active Power Filter-APF (APF) and STATCOM (STATCOM)
Deng from the capacitor using simple mechanical type with inductor group stair like control strategy to the tracing compensation skill using dynamic auto control
Art, the control that load end is idle can be greatly improved, but automatic reactive compensator high cost, equipment volume is big, and one
As compatible harmonic management function；On the other hand, a large amount of new forms of energy power grids bring impact, mesh to the instantaneous equilibrium of supply and demand of electric power
Front most promising mode is that including batteries to store energy, flywheel energy storage, draw water energy storage and super electricity using novel energy-storing technology
Hold etc., but the cost of energy storage technology is very high, and large-scale application needs technical breakthrough.
Prior art realizes the equilibrium of supply and demand of instant electrical power by power energy storage, and its financial cost and function bottleneck are current
Its large-scale development is limited, temporarily there is no irreplaceability in practical power systems application aspect；By reactive-load compensator
To realize reactive balance with burning voltage, but idle device is operationally lost seriously, and reactive-load compensation is unable to continuously adjustabe, can produce
Gave birth to benefit or owed to mend and more higher hamonic wave, device volume was larger, relatively costly, in addition automatically controlled reactive-load compensator pair
The requirement of device and control system is higher, high cost.
Content of the invention
A kind of intelligent load device and power transmission line intelligent load system is embodiments provided, existing skill is solved
Realized by power energy storage in art electric power the equilibrium of supply and demand when, power energy storage large-scale development is by financial cost and function bottleneck
Limit, and using more higher hamonic wave can be produced during reactive-load compensator, device volume is larger, relatively costly technical problem.
A kind of intelligent load device provided in an embodiment of the present invention, including：
Accumulation power supply, two-way DC/DC converters and two-way AC/DC converters；
Accumulation power supply is connected with two-way DC/DC converters；
Two-way DC/DC converters are connected with two-way AC/DC converters；
Two-way AC/DC converters are connected with load in electrical network；
Two-way DC/DC converters are also associated with two-way DC/DC control modules；
Two-way AC/DC converters are also associated with two-way AC/DC control modules.
Alternatively, electric capacity is parallel between two-way DC/DC converters and two-way AC/DC converters.
Alternatively, two-way DC/DC control modules are connected with control system, are controlled by control system.
Alternatively, two-way AC/DC control modules are connected with control system, are controlled by control system.
Alternatively, two-way AC/DC converters are connected with load in electrical network by LC filter circuits.
Alternatively, intelligent load device constitutes intelligent load with non-sensitive connected in series with the load in electrical network；
Intelligent load is connected in parallel with sensitive loads in electrical network.
Alternatively, control system includes PI controllers, controls electricity for obtaining the benchmark of intelligent load device infield
Pressure.
Alternatively, PI controllers introduce new reference voltage vmx_ref, reference voltage can be tried to achieve by formula one, and formula one has
Body is：
Wherein, vmx_refOn the basis of voltage, Vs *For bus rated voltage, M is and distance related variable that K declines for voltage
Velocity constant.
Alternatively, accumulation power supply is DC energy storage power supply, for realizing compensation network reactive power with active power and work
Electric energy is buffered for distributed energy storage equipment.
A kind of power transmission line intelligent load system provided in an embodiment of the present invention, it is characterised in that include：
The intelligent load device of at least one 1～claim 9 of claim, transmission line of electricity and transmission line of electricity power supply；
At least one intelligent load device is installed and connected in the diverse location of transmission line of electricity.Provided in an embodiment of the present invention one
Power transmission line intelligent load system is planted, including：
At least one intelligent load device, transmission line of electricity and transmission line of electricity power supply；
At least one intelligent load device is installed and connected in the diverse location of transmission line of electricity.
As can be seen from the above technical solutions, the embodiment of the present invention has advantages below：
DC energy storage battery is employed in the circuit structure of intelligent load device so that intelligent load device can be operated in many
The pattern of kind, it is achieved that while compensation network reactive power is with active power, it is also possible to buffer as distributed energy storage equipment
Electric energy；
The reactive power of intelligent load device output can be controlled by control with the voltage exchanged in lateral capacitance, by control
Voltage on Inductor processed come control intelligent load device output active power；
Employ two-way AC/DC converters and two-way DC/DC converters, it is achieved that intelligent load device energy-storage battery and electricity
The exchange of active power, reactive power between net；
Intelligent load device basic circuit employs LC low pass passive filter circuits, can filter the interference of low-order harmonic；
PI controllers are employed, circuit reference control voltage can be automatically obtained, multiple controllers on same circuit is assisted
Blending is made, and Intelligent Optimal load device capacity resource is configured, and reduces cost, extensive point to intelligent load device in electrical network
Cloth application provides the method for coordinating control；
The automatic reference voltage coordinating and unifying control of intelligent load device, can make in parallel with each intelligent load device non-
Sensitive loads can relatively evenly undertake unnecessary capacity value or more uniform off-load, make the operation more safety and steady of system.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is a kind of structural representation of intelligent load device provided in an embodiment of the present invention；
Fig. 2 is particular location relation schematic diagram of the intelligent load device provided in an embodiment of the present invention in electrical network；
Fig. 3 is a kind of power transmission line intelligent load system schematic diagram provided in an embodiment of the present invention；
Fig. 4 is the relation schematic diagram between line voltage distribution provided in an embodiment of the present invention and distance；
Fig. 5 is the reactive power of traditional intelligent load device output provided in an embodiment of the present invention and its output capacitor
On voltage relationship schematic diagram；
Fig. 6 is intelligent load device voltage-stabilizing controller block diagram provided in an embodiment of the present invention.
Specific embodiment
A kind of intelligent load device and power transmission line intelligent load system is embodiments provided, existing for solving
Realized by power energy storage in technology electric power the equilibrium of supply and demand when, power energy storage large-scale development is by financial cost and functional bottle
Neck is limited, and using producing more higher hamonic wave during reactive-load compensator, device volume is larger, relatively costly technical problem.
For enabling the goal of the invention of the present invention, feature, advantage more obvious and understandable, below in conjunction with the present invention
Accompanying drawing in embodiment, to the embodiment of the present invention in technical scheme be clearly and completely described, it is clear that disclosed below
Embodiment be only a part of embodiment of the invention, and not all embodiment.Embodiment in based on the present invention, this area
All other embodiment that those of ordinary skill is obtained under the premise of creative work is not made, belongs to protection of the present invention
Scope.
Fig. 1 is referred to, a kind of intelligent load device provided in an embodiment of the present invention, including：
Accumulation power supply, two-way DC/DC converters and two-way AC/DC converters；
Accumulation power supply is connected with two-way DC/DC converters；
Two-way DC/DC converters are connected with two-way AC/DC converters；
Two-way AC/DC converters are connected with load in electrical network；
Two-way DC/DC converters are also associated with two-way DC/DC control modules；
Two-way AC/DC converters are also associated with two-way AC/DC control modules.
Further, electric capacity is parallel between two-way DC/DC converters and two-way AC/DC converters.
Further, two-way DC/DC control modules are connected with control system, are controlled by control system.
Further, two-way AC/DC control modules are connected with control system, are controlled by control system.
Further, two-way AC/DC converters are connected with load in electrical network by LC filter circuits.
Further, intelligent load device constitutes intelligent load with non-sensitive connected in series with the load in electrical network；
Intelligent load is connected in parallel with sensitive loads in electrical network.
Further, control system includes PI controllers, controls for obtaining the benchmark of intelligent load device infield
Voltage.
Further, PI controllers introduce new reference voltage vmx_ref, reference voltage can be tried to achieve by formula one, formula one
Specially：
vmx_ref=Vs *-MK；
Wherein, vmx_refOn the basis of voltage, Vs *For bus rated voltage, M is and distance related variable that K declines for voltage
Velocity constant.
Further, accumulation power supply is DC energy storage power supply, for realize compensation network reactive power and active power and
Electric energy is buffered as distributed energy storage equipment.
It should be noted that in electrical network, can by intelligent load regard as a kind of distributed accumulation power supply with controllable
Load, DC terminal can make system be operated in various modes using energy storage dc source, can realize simultaneously active with reactive power with
Exchange with whole electrical network.Wherein, two-way DC/DC converters are designed for protecting energy-storage battery, during charging so that from exchange end
The DC voltage that rectification comes meets the voltage conditions charged to energy-storage battery so as to receive the energy come from electrical network；Electric discharge
When, make the voltage from the output of accumulation power supply end meet the inversion condition of two-way AC/DC converters, then by two-way AC/DC converters
Output transform is carried out, so that energy is exported to electrical network.Two-way DC/DC converters and two-way AC/DC converters are by same control
System controls two sub- control modules respectively and coordinates control.The key property of the device is can be stable by line voltage Vs
In given reference value, and do not disturbed by external disturbance, while the presence of DC energy storage power supply, it is also possible to export to electrical network active
Power.
Fig. 2 is referred to, is particular location relation of the intelligent load device in electrical network.Intelligent load device is operated in electric discharge
During state, provide idle and active power can to electrical network, offers of reactive power be embodied in the size of electric capacity output voltage and
In polarity, and the output of active power is then mainly reflected in the control to inductance both end voltage phase place.
It is more than the detailed description to intelligent load device, is told about in detail below
The voltage control of the intelligent load device of dress, is uniformly controlled coordinated operation with realize each device.
Fig. 3 is referred to, a kind of power transmission line intelligent load system provided in an embodiment of the present invention, including：
At least one intelligent load device, transmission line of electricity and transmission line of electricity power supply；
At least one intelligent load device is installed and connected in the diverse location of transmission line of electricity.
Intelligent load device can realize the control of point-to-point voltage, and for long distance power transmission, on bus, voltage can be with
The increase of transmission range and have decline to a certain extent, if diverse location is installed multiple intelligence and is born on a transmission line of electricity
Carry, as shown in Fig. 2 then the control reference voltage of each intelligent load should be (the V for differingg＞ Vm1＞ Vm2＞ Vmx＞ Vmn), because
This, for the method that traditional reference voltage by all common nodes is given as circuit rated voltage is filled in a large amount of intelligent loads
When putting Distributed Application and do not apply to, need each different mount point to circuit to carry out resetting reference voltage.
Fig. 4 is referred to, is the relation between line voltage distribution and distance.As seen from the figure, node different on the line, in fact
Border voltage is differed with the rated voltage of bus.Therefore, when being controlled to intelligent load common node terminal voltage, no
Its a reference value can be used as using same rated voltage to all intelligent loads.Because voltage change is mainly the work of line impedance
With therefore which presents a kind of linear relationship, can be represented its mathematical relationship, formula two and formula three by formula two and formula three
Specially：
vmx *=Vs *- MK two
E=vmx *-vmx=(Vs *-MK)-vmxThree
What wherein K was represented is the speed of voltage decrease speed, and which is related to line impedance, is a constant；What M was represented is
One, to apart from related variable, can be used to adjust voltage；At one at x, with its actual measure the voltage that obtains with should
The reference voltage at place subtracts each other.
Fig. 5 is referred to, is that the reactive power of traditional intelligent load device output is closed with the voltage on its output capacitor
System, presents linear relationship.According to the direction of output voltage determine the positive and negative of reactive power, i.e. inductive reactive power or capacitive without
Work(, when intelligent load device provides capacitive reactive power, then provides voltage support to common node, when inductive reactive power is provided, then
Drag down common-node voltage.And the intelligent load device that the present invention is provided can be led to the changes in demand of dynamic following System Reactive Power
The output voltage on electric capacity is overregulated come the reactive power of output required for controlling.Therefore, in the control of reactive power, mainly
It is to realize the control to electric capacity output voltage.
In traditional single voltage-stabilizing controller design, it is directly by the voltage Vmx and Vm* away from power end X, i.e. circuit
Rated voltage, makees difference to form error e, but the multiple voltage-stabilizing controllers of the various location on to a circuit is carried out simultaneously
During design, the method is simultaneously inadvisable, because can cause to work independently and not mutually coordinated cooperation between each controller, power with negative
Distribution of the lotus on each controller is simultaneously uneven, causes the waste of resource.Such as, on a circuit, some controller is produced
Raw voltage support, another controller produce voltage and suppress, and work independently from each other between the two, although such case is negative in intelligence
Carry installed capacity enough in the case of still can be with stable operation, but in actual motion, the capacity of intelligent load device can be because
Reduces cost and be restricted, the stable operation of the mode of operation will be affected.Accordingly, it would be desirable to the coordinating and unifying controls each
Controller so as to cooperate with each other, muck in come on balanced circuit active with idle so that the capacity of each device can all be obtained
Make full use of, the sharing of load in non-sensitive load can be more uniform.
Fig. 6 is referred to, for the intelligent load device voltage-stabilizing controller block diagram that the present invention is provided.
In the present invention, on the basis of former intelligent load controller, new reference voltage V mx_ref is added.Such as
Shown in Fig. 6, the reference voltage is an amount changed with the different of installation site, and its relation is represented by formula one and can be obtained.
In the controller, Vmx for actual track common node measurement voltage, Vm* be circuit rated voltage, Vmx_ref be through
The common node reference voltage of regulation, by new error e mx through PI control rings, obtains M, M be error is carried out ratio with
Result after integral operation, can regard the index of modulation for adjusting voltage magnitude in variable duration impulse system, the positive-negative polarity of M as
The idle characteristic of expression power output, the numerical value after the index of modulation is multiplied with constant K make difference with circuit rated voltage again
Obtain the new reference control voltage of different intelligent load installed position on circuit.
Those skilled in the art can be understood that, for convenience and simplicity of description, the system of foregoing description,
Device and the specific work process of unit, may be referred to the corresponding process in preceding method embodiment, will not be described here.
The above, above example only in order to technical scheme to be described, rather than a limitation；Although with reference to front
State embodiment to be described in detail the present invention, it will be understood by those within the art that：Which still can be to front
State the technical scheme described in each embodiment to modify, or equivalent is carried out to which part technical characteristic；And these
Modification is replaced, and does not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. a kind of intelligent load device, it is characterised in that include：
Accumulation power supply, two-way DC/DC converters and two-way AC/DC converters；
The accumulation power supply is connected with the two-way DC/DC converters；
The two-way DC/DC converters are connected with the two-way AC/DC converters；
The two-way AC/DC converters are connected with load in electrical network；
The two-way DC/DC converters are also associated with two-way DC/DC control modules；
The two-way AC/DC converters are also associated with two-way AC/DC control modules.
2. intelligent load device according to claim 1, it is characterised in that the two-way DC/DC converters are double with described
Electric capacity is parallel between AC/DC converters.
3. intelligent load device according to claim 1, it is characterised in that the two-way DC/DC control modules are connected with
Control system, is controlled by the control system.
4. intelligent load device according to claim 1, it is characterised in that the two-way AC/DC control modules are connected with
Control system, is controlled by the control system.
5. intelligent load device according to claim 1, it is characterised in that the two-way AC/DC converters are filtered by LC
Wave circuit is connected with load in electrical network.
6. intelligent load device according to claim 1, it is characterised in that the intelligent load device is non-quick with electrical network
Sense connected in series with the load constitutes intelligent load；
The intelligent load is connected in parallel with sensitive loads in electrical network.
7. intelligent load device according to claim 3, it is characterised in that the control system includes PI controllers, uses
In the reference control voltage for obtaining the intelligent load device infield.
8. intelligent load device according to claim 7, it is characterised in that the PI controllers introduce new reference voltage
vmx_ref, the reference voltage can be tried to achieve by formula one, and the formula one is specially：
vmx_ref=Vs *-MK；
Wherein, vmx_refOn the basis of voltage, Vs *For bus rated voltage, M is and distance related variable that K is voltage decrease speed
Constant.
9. intelligent load device according to claim 1, it is characterised in that the accumulation power supply is DC energy storage power supply,
For realizing that compensation network reactive power buffers electric energy with active power and as distributed energy storage equipment.
10. a kind of power transmission line intelligent load system, it is characterised in that include：
Intelligent load device, transmission line of electricity and power transmission line at least one 1～claim 9 of claim described in any one
Road power supply；
Described at least one, intelligent load device is installed and connected in the diverse location of the transmission line of electricity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610945872.4A CN106505601A (en) | 2016-11-02 | 2016-11-02 | A kind of intelligent load device and power transmission line intelligent load system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610945872.4A CN106505601A (en) | 2016-11-02 | 2016-11-02 | A kind of intelligent load device and power transmission line intelligent load system |
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| CN106505601A true CN106505601A (en) | 2017-03-15 |
Family
ID=58321986
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| CN201610945872.4A Pending CN106505601A (en) | 2016-11-02 | 2016-11-02 | A kind of intelligent load device and power transmission line intelligent load system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108879783A (en) * | 2018-08-02 | 2018-11-23 | 广东电网有限责任公司 | A kind of electric power spring energy source consumption system |
| CN110768524A (en) * | 2019-10-24 | 2020-02-07 | 西安锐智翼电子科技有限公司 | Power regulation method and device and charging equipment |
| CN113285462A (en) * | 2021-05-28 | 2021-08-20 | 南方电网电力科技股份有限公司 | Intelligent voltage stabilizing device of power transmission line, control method, equipment and medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102510068A (en) * | 2011-11-06 | 2012-06-20 | 中国科学院电工研究所 | Distributed power quality conditioner and method for controlling same |
| CN104218840A (en) * | 2014-04-15 | 2014-12-17 | 江苏有能新能源有限公司 | Micro-grid energy storage topological inverter and method for operating same |
| CN104935070A (en) * | 2015-06-11 | 2015-09-23 | 清华大学 | Backup uninterruptible power supply having rapid switch-off capability |
| CN105429462A (en) * | 2015-12-09 | 2016-03-23 | 国网山东省电力公司济宁供电公司 | Control system and method for two-stage multifunctional grid connected converter |
| CN205610313U (en) * | 2016-05-13 | 2016-09-28 | 王晓民 | Two -way energy storage contravariant system |
-
2016
- 2016-11-02 CN CN201610945872.4A patent/CN106505601A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102510068A (en) * | 2011-11-06 | 2012-06-20 | 中国科学院电工研究所 | Distributed power quality conditioner and method for controlling same |
| CN104218840A (en) * | 2014-04-15 | 2014-12-17 | 江苏有能新能源有限公司 | Micro-grid energy storage topological inverter and method for operating same |
| CN104935070A (en) * | 2015-06-11 | 2015-09-23 | 清华大学 | Backup uninterruptible power supply having rapid switch-off capability |
| CN105429462A (en) * | 2015-12-09 | 2016-03-23 | 国网山东省电力公司济宁供电公司 | Control system and method for two-stage multifunctional grid connected converter |
| CN205610313U (en) * | 2016-05-13 | 2016-09-28 | 王晓民 | Two -way energy storage contravariant system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108879783A (en) * | 2018-08-02 | 2018-11-23 | 广东电网有限责任公司 | A kind of electric power spring energy source consumption system |
| CN108879783B (en) * | 2018-08-02 | 2021-01-26 | 广东电网有限责任公司 | Power spring energy consumption system |
| CN110768524A (en) * | 2019-10-24 | 2020-02-07 | 西安锐智翼电子科技有限公司 | Power regulation method and device and charging equipment |
| CN113285462A (en) * | 2021-05-28 | 2021-08-20 | 南方电网电力科技股份有限公司 | Intelligent voltage stabilizing device of power transmission line, control method, equipment and medium |
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Application publication date: 20170315 |