CN206559050U - A kind of utility power quality control device of distributed energy access - Google Patents
A kind of utility power quality control device of distributed energy access Download PDFInfo
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- CN206559050U CN206559050U CN201720195490.4U CN201720195490U CN206559050U CN 206559050 U CN206559050 U CN 206559050U CN 201720195490 U CN201720195490 U CN 201720195490U CN 206559050 U CN206559050 U CN 206559050U
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- pressure winding
- low pressure
- distributed energy
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- power quality
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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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- 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
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- Supply And Distribution Of Alternating Current (AREA)
Abstract
The utility model discloses a kind of utility power quality control device of distributed energy access, including high pressure winding, the first low pressure winding, the second low pressure winding, the first load and the second load, described high pressure winding is arranged on the high-pressure side of multi-functional blended electric power transformer, high pressure winding and public electric wire net connection；First low pressure winding and the second low pressure winding are arranged on the low-pressure side of multi-functional blended electric power transformer, and the first low pressure winding is connected with power quality controlling device and the first load respectively；Distributed energy and the second load are connected in parallel between power quality controlling device and the second low pressure winding, distributed energy is connected in parallel between the first load and the first low pressure winding, power network can be eliminated to distributed energy harmonic wave, the stability contorting to voltage can be realized, reactive-load compensation can be carried out with distribution system dynamically to adjust, the trend flow direction after distributed energy access can be adjusted, efficiency of energy utilization is improved.
Description
Technical field
The utility model is related to electric energy Treatment process field, and in particular to a kind of quality of power supply control of distributed energy access
Device processed.
Background technology
Application of the power transformer in power system is widely.Power transformer can be changed to high-voltage variable low electricity
Low-voltage, can be also transformed to high voltage by pressure.
Power transformer is a kind of static electrical equipment, is for by the alternating voltage of a certain numerical value（Electric current）Become frequency
The voltage that rate identical is another or several numerical value are different（Electric current）Equipment.When first winding passes to alternating current, just produce
The magnetic flux of alternation, the magnetic flux of alternation is acted on by iron core magnetic conduction, and AC electromotive force is just induced in secondary winding.Secondary sensing
The height of electromotive force is relevant with the number of a secondary winding number of turn, i.e., voltage swing is directly proportional to the number of turn.Main function is transmission
Electric energy, therefore, rated capacity are its major parameters.Rated capacity is the usual value of a performance power, and it is to characterize transmission
The size of electric energy, is represented with kVA or MVA, when applying rated voltage to transformer, is determined according to it under prescribed conditions not
More than the rated current of temperature limit.The power transformer more saved is amorphous alloy iron core distribution transformer, and its maximum is excellent
Point is that open circuit loss value spy is low.Open circuit loss value can finally be ensured, be that the core to be considered is asked in whole design process
Topic.When being arranged in product structure, except amorphous alloy iron core to be considered in itself not by the effect of external force in addition to, while calculate when also
The characterisitic parameter of the accurate Rational choice non-crystaline amorphous metal of palpus.
But conventional power transformer harmonic wave after distributed energy access is big, in the urgent need to administering, regular distribution system
The reactive-load compensation of system is not adapted dynamically, and power factor (PF) is low, and loss is big；Distributed access point voltage is not adapted dynamically, negative
When low to voltage height, voltage when lotus is low, voltage drop is too high, and voltage stability is poor；Threephase load is uneven, and the safety to power network is steady
Fixed operation brings very big influence.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of utility power quality control device of distributed energy access,
The utility power quality control device accessed using a kind of distributed energy is solved conventional power transformer and accessed in distributed energy
Harmonic wave is big afterwards, in the urgent need to administering, and the reactive-load compensation of custom power distribution systems is not adapted dynamically, and power factor (PF) is low, and loss is big；Point
Cloth access point voltage is not adapted dynamically, and when low to voltage height, voltage when load is low, voltage drop is too high, voltage stability
Difference；Threephase load is uneven, the problem of safe and stable operation to power network brings very big influence.
The technical scheme of offer of the present utility model is a kind of utility power quality control device of distributed energy access of offer,
Including public electric wire net, high pressure winding, the first low pressure winding, the second low pressure winding, distributed energy, transmission line of electricity, the quality of power supply
Controlling device, the first load and the second load, described high pressure winding are arranged on the high-pressure side of multi-functional blended electric power transformer,
High pressure winding and public electric wire net connection；First low pressure winding and the second low pressure winding are arranged on multi-functional blended electric power transformer
Low-pressure side, power quality controlling device is connected with second low pressure winding one end by transmission line of electricity, the first low pressure winding respectively and
Power quality controlling device and the first load are connected by transmission line of electricity；In power quality controlling device and the second low pressure winding
Between by power transmission line parallel-connection be connected with distributed energy and second load, first load the first low pressure winding between
Distributed energy is connected with by power transmission line parallel-connection.
Described multi-functional blended electric power transformer is Multifunctional AC electric power transformer.
Described the first low pressure winding and the second low pressure winding is provided with independent grounding device.
Described distributed energy includes photovoltaic electric, wind-powered electricity generation and thermoelectricity.
Using a kind of utility power quality control device of distributed energy access obtained by the technical solution of the utility model, lead to
The access in distributed energy is crossed, and high pressure winding is arranged on the high-pressure side of multi-functional blended electric power transformer, high pressure winding
With public electric wire net connection, two groups of low pressure windings are set in Multifunctional AC electric power step down side, then again wherein one group
Power quality controlling device is accessed in low pressure winding, another group of low pressure winding is then controlled with distributed power source and the quality of power supply respectively
Device connection is managed, distributed energy is connected with by power transmission line parallel-connection between power quality controlling device and the second low pressure winding
Source and the second load, distributed energy is connected between the first load and the first low pressure winding by power transmission line parallel-connection,
Due to having accessed power quality controlling device and distributed energy, for power transformer distributed energy access after harmonic wave
Greatly, administered, reactive-load compensation dynamically adjustment can be carried out, power factor (PF) is high, is lost small；Distributed access point voltage can
To enter Mobile state adjustment, when load is low, voltage drop is not high, and voltage stability is good；Threephase load is in a basic balance, the peace to power network
Full stable operation brings very big guarantee.
Beneficial effect, compared with prior art, due to having accessed power quality controlling device and distributed energy, can be eliminated
Power network is to distributed energy harmonic wave, it is possible to achieve to the stability contorting of voltage, can carry out reactive-load compensation with distribution system and dynamically adjust
It is whole, the trend flow direction after distributed energy access can be adjusted, efficiency of energy utilization is improved, the circuit for reducing system is damaged
Consumption, can be achieved the on-site elimination of distributed energy.
Brief description of the drawings
Fig. 1 is principle schematic of the present utility model.
Embodiment
Below in conjunction with the accompanying drawings and utility model is described further specific embodiment：
As shown in figure 1, a kind of utility power quality control device of distributed energy access, including public electric wire net, high pressure winding,
First low pressure winding, the second low pressure winding, distributed energy, transmission line of electricity, power quality controlling device, the first load and second
Load, high pressure winding is arranged on the high-pressure side of multi-functional blended electric power transformer, high pressure winding and public electric wire net connection；First is low
Pressure winding and the second low pressure winding are arranged on the low-pressure side of multi-functional blended electric power transformer, power quality controlling device and second
Low pressure winding one end is connected by transmission line of electricity, and the first low pressure winding is logical with power quality controlling device and the first load respectively
Cross transmission line of electricity connection；It is distributed between power quality controlling device and the second low pressure winding by power transmission line parallel-connection connection
The formula energy and the second load, distributed energy is connected between the first load and the first low pressure winding by power transmission line parallel-connection
Source.
Further multi-functional blended electric power transformer is Multifunctional AC electric power transformer, Multifunctional AC electric power transformation
Device can complete energy exchange, realize that trend flows.
Further first low pressure winding and the second low pressure winding are provided with independent grounding device, and independent grounding device can
To ensure system safety.
Further distributed energy includes photovoltaic electric, wind-powered electricity generation and thermoelectricity, and the access of distributed energy can be to a certain degree
On for power transformer, harmonic wave is big after distributed energy access, is administered, reactive-load compensation dynamic can be carried out and adjusted,
Power factor (PF) is high, is lost small；Distributed access point voltage can be carried out dynamic adjustment, and when load is low, voltage drop is not high, electricity
Press stability good；Threephase load is in a basic balance, and the safe and stable operation to power network brings very big guarantee.
Using a kind of utility power quality control device of distributed energy access obtained by the technical solution of the utility model, lead to
The access in distributed energy is crossed, and high pressure winding is arranged on the high-pressure side of multi-functional blended electric power transformer, high pressure winding
With public electric wire net connection, two groups of low pressure windings are set in Multifunctional AC electric power step down side, then again wherein one group
Power quality controlling device is accessed in low pressure winding, another group of low pressure winding is then controlled with distributed power source and the quality of power supply respectively
Device connection is managed, distributed energy is connected with by power transmission line parallel-connection between power quality controlling device and the second low pressure winding
Source and the second load, distributed energy is connected between the first load and the first low pressure winding by power transmission line parallel-connection,
Due to having accessed power quality controlling device and distributed energy, for power transformer distributed energy access after harmonic wave
Greatly, administered, reactive-load compensation dynamically adjustment can be carried out, power factor (PF) is high, is lost small；Distributed access point voltage can
To enter Mobile state adjustment, when load is low, voltage drop is not high, and voltage stability is good；Threephase load is in a basic balance, the peace to power network
Full stable operation brings very big guarantee.
Beneficial effect, compared with prior art, due to having accessed power quality controlling device and distributed energy, can be eliminated
Power network is to distributed energy harmonic wave, it is possible to achieve to the stability contorting of voltage, and reactive-load compensation dynamic can be carried out to distribution system
Adjustment, can adjust the trend flow direction after distributed energy access, improve efficiency of energy utilization, the circuit for reducing system is damaged
Consumption, can be achieved the on-site elimination of distributed energy.
Claims (4)
1. a kind of utility power quality control device of distributed energy access, including public electric wire net, high pressure winding, the first low pressure around
Group, the second low pressure winding, distributed energy, transmission line of electricity, power quality controlling device, the first load and the second load, it is special
Levy and be：Described high pressure winding is arranged on the high-pressure side of multi-functional blended electric power transformer, and high pressure winding and public electric wire net connect
Connect；First low pressure winding and the second low pressure winding are arranged on the low-pressure side of multi-functional blended electric power transformer, power quality controlling
Device is connected with second low pressure winding one end by transmission line of electricity, the first low pressure winding respectively with power quality controlling device and
First load is connected by transmission line of electricity；Pass through power transmission line parallel-connection between power quality controlling device and the second low pressure winding
Distributed energy and the second load are connected with, is connected between the first load and the first low pressure winding by power transmission line parallel-connection
It is distributed the formula energy.
2. a kind of utility power quality control device of distributed energy access according to claim 1, it is characterised in that：It is described
Multi-functional blended electric power transformer be Multifunctional AC electric power transformer.
3. a kind of utility power quality control device of distributed energy access according to claim 1, it is characterised in that：It is described
The first low pressure winding and the second low pressure winding be provided with independent neutrality.
4. a kind of utility power quality control device of distributed energy access according to claim 1, it is characterised in that：It is described
Distributed energy include photovoltaic electric, wind-powered electricity generation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720195490.4U CN206559050U (en) | 2017-03-02 | 2017-03-02 | A kind of utility power quality control device of distributed energy access |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720195490.4U CN206559050U (en) | 2017-03-02 | 2017-03-02 | A kind of utility power quality control device of distributed energy access |
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| CN206559050U true CN206559050U (en) | 2017-10-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106786588A (en) * | 2017-03-02 | 2017-05-31 | 贵州电网有限责任公司电力科学研究院 | The utility power quality control device that a kind of distributed energy is accessed |
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2017
- 2017-03-02 CN CN201720195490.4U patent/CN206559050U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106786588A (en) * | 2017-03-02 | 2017-05-31 | 贵州电网有限责任公司电力科学研究院 | The utility power quality control device that a kind of distributed energy is accessed |
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