CN208835764U - Power supply system - Google Patents
Power supply system Download PDFInfo
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- CN208835764U CN208835764U CN201821371986.3U CN201821371986U CN208835764U CN 208835764 U CN208835764 U CN 208835764U CN 201821371986 U CN201821371986 U CN 201821371986U CN 208835764 U CN208835764 U CN 208835764U
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Abstract
The utility model provides a kind of power supply system, belongs to power supply technique field.Power supply system provided by the embodiment of the utility model includes three port electric power electric transformers, the first renewable energy system, the first energy-storage system, the second renewable energy system and the second energy-storage system；The input terminal of three port electric power electric transformers is connect with high-voltage fence；First renewable energy system and the first energy-storage system are connect with the alternating current output port of three port electric power electric transformers；Second renewable energy system and the second energy-storage system are connect with the DC output end mouth of three port electric power electric transformers, it is provided for user with electricity consumption by the way that alternating current-direct current distribution, renewable energy system and energy-storage system are integrated into a power supply system, realize the economy of user power utilization, reliability and flexibility.
Description
Technical field
The utility model relates to power supply technique fields, in particular to a kind of power supply system.
Background technique
Electric power is the power producer of the national economic development, provides reliable electric power safeguard for socio-economic development.Therefore,
The safe and reliable most important thing for being national economy can be fast-developing of Operation of Electric Systems.
Currently, alternating current-direct current power conversion losses are high in conventional AC distribution, it is poor to match electricity consumption flexibility, match with electricity consumption link
Property low problem it is increasingly prominent, under the place of some positions limitation, be difficult that AC transformer is installed.It is fast with national economy
Speed development, the application field of DC suppling equipment is more and more wider, and alternating current-direct current hybrid power supply demand is increasing, at present energy conversion
Single AC transformer can not adapt to new use can scene.In recent years, the electric power electric transformer of alternating current-direct current mixing obtained
Rapid development, still, what the current country used is the electric power electric transformer of dual-port, can only provide single direct current supply
Or Alternating Current Power Supply, it can not accomplish alternating current-direct current hybrid power supply, and at present integrate alternating current-direct current distribution, new energy, energy storage technology
It is studied at a system less, therefore economy, reliability and flexibility with electricity consumption cannot be provided for user.
Utility model content
For above-mentioned problems of the prior art, the utility model provides a kind of power supply system, and alternating current-direct current is matched
Electricity, new energy, energy storage technology are integrated into a system, can provide economical, reliable for user and flexibly match electricity consumption, mitigate and use
The electricity consumption at family is born.
In a first aspect, the utility model embodiment provides a kind of power supply system, and the system comprises: three port electric power electricity
Sub- transformer, the first renewable energy system, the first energy-storage system, the second renewable energy system and the second energy-storage system；
The input terminal of three port electric power electric transformer is connect with high-voltage fence；
The friendship of first renewable energy system and the first energy-storage system with three port electric power electric transformer
The connection of galvanic electricity output port；
Second renewable energy system and the second energy-storage system are straight with three port electric power electric transformer
The connection of galvanic electricity output port.
With reference to first aspect, the utility model embodiment provides the first possible embodiment of first aspect,
In, first renewable energy system includes the first photovoltaic system and the first wind energy system.
With reference to first aspect, the utility model embodiment provides second of possible embodiment of first aspect,
In, second renewable energy system includes the second photovoltaic system, the second wind energy system.
With reference to first aspect, the utility model embodiment provides the third possible embodiment of first aspect,
In, first photovoltaic system, first wind energy system and first energy-storage system pass through ac bus and three end
The alternating current output port connection of mouth electric power electric transformer；Second photovoltaic system, the second wind energy system and described second
Energy-storage system is connect by DC bus with the DC output end mouth of three port electric power electric transformer.
The third possible embodiment, the utility model embodiment provide the 4th of first aspect with reference to first aspect
The possible embodiment of kind, wherein further include DC/AC conversion between first photovoltaic system and the ac bus
Device；The AC/DC converter is used to direct current being converted to alternating current.
The third possible embodiment, the utility model embodiment provide the 5th of first aspect with reference to first aspect
The possible embodiment of kind, wherein further include exchange/exchange conversion between first wind energy system and the ac bus
Device；The exchange/exchange converter is for converting the different alternating current of voltage class.
The third possible embodiment, the utility model embodiment provide the 6th of first aspect with reference to first aspect
The possible embodiment of kind, wherein further include DC/AC conversion between first storage system and the ac bus
Device；The AC/DC converter is used to direct current being converted to alternating current.
The third possible embodiment, the utility model embodiment provide the 7th of first aspect with reference to first aspect
The possible embodiment of kind, wherein further include DC/DC conversion between second photovoltaic system and the DC bus
Device；The DC-DC converter is for converting the different direct current of voltage class.
The third possible embodiment, the utility model embodiment provide the 8th of first aspect with reference to first aspect
The possible embodiment of kind, wherein further include ac/dc conversion between second wind energy system and the DC bus
Device；The AC/DC converter is for converting alternating current to direct current.
The third possible embodiment, the utility model embodiment provide the 9th of first aspect with reference to first aspect
The possible embodiment of kind, wherein further include DC/DC conversion between second energy-storage system and the DC bus
Device；The DC-DC converter is for converting the different direct current of voltage class.
The utility model embodiment bring it is following the utility model has the advantages that
It includes: three port electric power electric transformers, the first renewable energy that the utility model embodiment, which provides power supply system,
Source system, the first energy-storage system, the second renewable energy system and the second energy-storage system；Three port electric power electric transformers
Input terminal is connect with high-voltage fence；First renewable energy system and the first energy-storage system with three port electric power electric transformers
Alternating current output port connection；Second renewable energy system and the second energy-storage system with three port electric power electric transformers
DC output end mouth connection, by the way that alternating current-direct current distribution, renewable energy system and energy-storage system are integrated into a confession
Electric system provides the economy that user power utilization is realized with electricity consumption, reliability and flexibility for user.
Other feature and advantage of the utility model will illustrate in the following description, also, partly from specification
In become apparent, or understood and implementing the utility model.The purpose of this utility model and other advantages are illustrating
Specifically noted structure is achieved and obtained in book, claims and attached drawing.
To enable the above objects, features, and advantages of the utility model to be clearer and more comprehensible, preferred embodiment is cited below particularly, and
Cooperate appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural block diagram of power supply system provided by the utility model embodiment；
Fig. 2 is the first renewable energy structural block diagram provided by the utility model embodiment；
Fig. 3 is the second renewable energy structural block diagram provided by the utility model embodiment；
Fig. 4 is the connection schematic diagram of power supply system provided by the utility model embodiment.
Diagram: 100- high-voltage fence；Tri- port electric power electric transformer of 110-；The first renewable energy system of 120-；
The first photovoltaic system of 121-；The first wind energy system of 122-；The first energy-storage system of 130-；140- AC load；150- second can be again
Raw energy resource system；The second photovoltaic system of 151-；The second wind energy system of 152-；The second energy-storage system of 160-；170- DC load.
Specific embodiment
To keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, below in conjunction with attached drawing to this
The technical solution of utility model is clearly and completely described, it is clear that described embodiment is that the utility model a part is real
Example is applied, instead of all the embodiments.The component of the utility model embodiment being usually described and illustrated herein in the accompanying drawings can
To arrange and design with a variety of different configurations.Therefore, below to the embodiments of the present invention provided in the accompanying drawings
Detailed description is not intended to limit the range of claimed invention, but is merely representative of the selected reality of the utility model
Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art institute without making creative work
The every other embodiment obtained, fall within the protection scope of the utility model.
It is single for existing power supply mode, it is difficult to economic, reliable, flexible the problem of matching electricity consumption is provided for user, this
Utility model embodiment provides a kind of power supply system, describes in detail below to the power supply system of the utility model.
Embodiment one
A kind of power supply system is present embodiments provided, as shown in Figure 1, the power supply system includes: that three port power electronics become
Depressor 110, the first renewable energy system 120, the first energy-storage system 130, the second renewable energy system 150 and the second storage
It can system 160；
As shown in figure 4, the input terminal of three port electric power electric transformers 110 is connect with high-voltage fence 100；
The friendship of first renewable energy system 120 and the first energy-storage system 130 with three port electric power electric transformers 110
The connection of galvanic electricity output port；
Second renewable energy system 150 and the second energy-storage system 160 with three port electric power electric transformer 110
DC output end mouth connection.
Wherein, the first renewable energy system 120 includes the first photovoltaic system 121 and the first wind energy system 122, such as Fig. 2
It is shown；Second renewable energy system 150 includes the second photovoltaic system 151 and the second wind energy system 152, as shown in Figure 3.
As shown in Figure 4, the first photovoltaic system 121, the first wind energy system 122 and the first energy-storage system 130 pass through friendship
Stream bus is connect with the alternating current output port of three port electric power electric transformers 110；Second photovoltaic system 151, the second wind energy
System 152 and the second energy-storage system 160 pass through the direct current electricity output of DC bus and three port electric power electric transformer 110
Port connection.
Three port electric power electric transformers 110 refer to tool, and there are three the power electronics transformations of the different port of voltage class
Device, the working principle of the three ports electric power electric transformer 110 are to be modulated to the power-frequency voltage of input by primary side converter
High-frequency ac voltage and high-frequency direct-current voltage, then secondary side is coupled to by high frequency transformer, it will by the power converter on secondary side
High-frequency ac voltage and high-frequency direct-current voltage are converted to required alternating voltage and DC voltage.
The working principle of first photovoltaic system 121 and the second photovoltaic system 151 is the photogenic voltage using interface
Effect and luminous energy is converted directly into electric energy, final output is DC voltage.Key element in system is solar battery,
Solar battery carries out packaging protection after series connection can form the solar module of large area, in connection power controller etc.
Component is formed photovoltaic power generation apparatus.There are two types of modes for solar power generation, and one is luminous energy to be converted into thermal energy, thermal energy reconvert
At the mode of electric energy, another kind is the mode that luminous energy is directly changed into electric energy.Photovoltaic generating system is a kind of reproducible, safety
Reliably, free of contamination new energy resources system.
The working principle of first wind energy system 122 and the second wind energy system 152 is to convert wind energy into mechanical energy, promotes to send out
Electric power generation, final output are alternating voltage.Main element in system is windmill, and wind-force drives air vane rotation, then
The speed of rotation is promoted by booster engine, it is three meters about per second according to current generation technology to promote electrical power generators
Gentle breeze speed, engine power generation can be promoted.Wind power generation system is also a kind of reproducible, securely and reliably, without dirt
The new energy resources system of dye.
In an optional embodiment, three port electric power electric transformers, 110 input port is 10kV AC port, can be with
It is connect by breaker with high-voltage fence 100；The voltage of alternating current output port can be 380V or 370V, direct current electricity output
The voltage of port can be 240V or 220V；Voltage on ac bus is identical as the voltage that alternating current output port exports,
Voltage on DC bus is identical as the voltage that DC output end mouth exports；Each port passes through breaker and respective bus bars respectively
Connection.
For example, as shown in Figure 1, the 10kV AC port of three port electric power electric transformers 110 passes through breaker J1
Connect high-voltage fence；380V AC port passes through breaker J2 connection ac bus；240V DC port is connected by breaker J3
Connect DC bus.
It further include AC/DC converter between the first photovoltaic system 121 and ac bus in above-mentioned power supply system,
For direct current to be converted to alternating current；It further include exchange/exchange converter between first wind energy system 122 and ac bus,
For the different alternating current of voltage class to be converted；It further include direct current/friendship between first storage system 130 and ac bus
Stream transformer, for direct current to be converted to alternating current；It further include direct current/straight between second photovoltaic system 151 and DC bus
Stream transformer, for converting the different direct current of voltage class；It is also wrapped between second wind energy system 152 and DC bus
AC/DC converter is included, for converting alternating current to direct current；It is also wrapped between second energy-storage system 160 and DC bus
DC-DC converter is included, for converting the different direct current of voltage class.
For example, the DC/AC21 converter between the first photovoltaic system 121 and ac bus described in Fig. 1, for by the
The direct current that one photovoltaic system 121 generates, which is converted to alternating current and is supplied to the alternating current of user, uses equipment or device；First
AC/AC22 converter between wind energy system 122 and ac bus, the alternating voltage for generating the first wind energy system 122
It is converted into meeting the 380V alternating voltage that user uses, the alternating current for being supplied to user uses equipment or device；First storage
DC/AC23 converter between system 130 and ac bus, the alternating voltage conversion for storing the first energy-storage system 130
The 380V alternating voltage used at user is met, the alternating current for being supplied to user use equipment or device；Second photovoltaic system
It further include DC/DC31 converter between 151 and DC bus, the direct current for generating the second photovoltaic system 151 is converted into
Meet the 240V DC voltage that user uses, the direct current for being supplied to user uses equipment or device；Second wind energy system 152
AC/DC32 converter between DC bus, the alternating current for generating the second wind energy system 152 are converted into direct current,
The direct current for being supplied to user uses equipment or device；DC/DC32 conversion between second energy-storage system 160 and DC bus
Device, the DC voltage for storing the second energy-storage system 160 are converted into meeting the 240V DC voltage that user uses, be supplied to
The direct current of user uses equipment or device.
In an optional embodiment, the first renewable energy system 120 and the first energy-storage system 130 can pass through open circuit
Device access ac bus is connect with the alternating current output port of three port electric power electric transformers 110, and is accessed by breaker
Consume the equipment or device of alternating current；Second renewable energy system 150 and the second energy-storage system 160 can pass through open circuit
Device is connect with access DC bus with the DC output end mouth of three port electric power electric transformers 110, and is connected by breaker
Connect the equipment or device of consumption direct current.
For example, as shown in Figure 1, the first photovoltaic system 121, the first wind energy system 122, the first energy-storage system 130 difference
The alternating current for accessing ac bus and three port electric power electric transformers 110 by breaker J4, breaker J5, breaker J6 is defeated
Exit port connection, and pass through breaker J7 connection AC load 140；Second photovoltaic system 151, the second wind energy system 152, second
Energy-storage system 160 accesses DC bus by breaker J8, breaker J9, breaker J10 respectively and three port power electronics become
The DC output end mouth of depressor 110 connects, and passes through breaker J11 connection DC load 170.
In above-mentioned power supply system, all breakers are closed states, and only some system breaks down, just meeting
Breaker connected to it is disconnected, such as the first photovoltaic system 121 is out of order, then cut-off breaker J4, and otherwise breaker J4 is by one
Directly it is kept closed.
The application method of above-mentioned power supply system is as follows:
Firstly, three port electric power electric transformers 110 of starting.
Specifically, it is determined that three ports of three port electric power electric transformers 110 are in not-connected status；Determine three ends
Mouth electric power electric transformer 110 is in hot stand-by duty；Determine that the voltage magnitude of high-voltage fence 100, frequency are in stable state；
The input port of three port electric power electric transformers 110 is connect 100 with high-voltage fence.
Secondly, the first renewable energy system 120 of access and the first energy-storage system 130.
Specifically, it is determined that the first renewable energy system 120 and the first energy-storage system 130 are in not-connected status；Really
The voltage magnitude of the fixed ac bus connecting with the alternating current output port of three port electric power electric transformers 110, frequency are in
First renewable energy system 120 is accessed the exchange of three port electric power electric transformers 110 by stable state by ac bus
Electricity output port；Determine the voltage for the ac bus connecting with the alternating current output port of three port electric power electric transformers 110
Amplitude, frequency are in stable state, and the first energy-storage system 130 is accessed three port electric power electric transformers by ac bus
110 alternating current output port.
By the AC port of the electric power electric transformer 110 of three ports and the first renewable energy system 120 and the first storage
After energy system 130 accesses, the DC bus connecting with the alternating current output port of three port electric power electric transformers 160 is determined
Voltage magnitude, frequency are in stable state, and AC load 140 is accessed, and make the exchange end of three port electric power electric transformers 110
Mouth, the first renewable energy system 120 and the first energy-storage system 130 are that AC load 140 provides alternating voltage.
Wherein, the first renewable energy system 120 is accessed into three port electric power electric transformers 110 by ac bus
First photovoltaic system 121 and the first wind energy system 122 are specially passed through ac bus access three one by one by alternating current output port
The alternating current output port of port electric power electric transformer 110；The alternating current of three port electric power electric transformers 110 of access every time
Before output port, the electricity for the ac bus connecting with the alternating current output port of three port electric power electric transformers 110 is determined
Pressure amplitude value, frequency are in stable state.
Finally, the second renewable energy system 150 of access and the second energy-storage system 160.
Specifically, determining that the second renewable energy system 150 and the second energy-storage system 160 are in not-connected status；Really
The voltage magnitude of the fixed DC bus connecting with the DC output end mouth of three port electric power electric transformers 110, frequency are in
Second renewable energy system 150 is accessed the direct current of three port electric power electric transformers by stable state by DC bus
Output port；Determine the voltage amplitude for the DC bus connecting with the DC output end mouth of three port electric power electric transformers 110
Value, frequency are in stable state, and the second energy-storage system 160 is accessed three port electric power electric transformers 110 by DC bus
DC output end mouth.
By the DC port of the electric power electric transformer 110 of three ports and the second renewable energy system 150 and the second storage
After energy system 160 accesses, the DC bus connecting with the DC output end mouth of three port electric power electric transformers 160 is determined
Voltage magnitude, frequency are in stable state, and DC load 170 is accessed, and make the DC terminal of three port electric power electric transformers 110
Mouth, the second renewable energy system 150 and the second energy-storage system 160 are that DC load 170 provides DC voltage.
Wherein, the second renewable energy system 150 is accessed into the straight of three port electric power electric transformers by DC bus
Second photovoltaic system 151 and the second wind energy system 152 are specially accessed three ends by DC bus one by one by galvanic electricity output port
The DC output end mouth of mouth electric power electric transformer 110；The direct current of three port electric power electric transformers 110 of access is defeated every time
Before exit port, the voltage for the DC bus connecting with the DC output end mouth of three port electric power electric transformers 110 is determined
Amplitude, frequency are in stable state.
Power supply system provided by the embodiment of the utility model includes three port electric power electric transformers, the first renewable energy
System, the first energy-storage system, the second renewable energy system and the second energy-storage system；Three port electric power electric transformers it is defeated
Enter end to connect with high-voltage fence；First renewable energy system and the first energy-storage system with three port electric power electric transformers
The connection of alternating current output port；Second renewable energy system and the second energy-storage system with three port electric power electric transformers
DC output end mouth connection, by the way that alternating current-direct current distribution, renewable energy system and energy-storage system are integrated into a power supply
System provides the economy that user power utilization is realized with electricity consumption, reliability and flexibility for user.
In addition, in the description of the utility model embodiment unless specifically defined or limited otherwise, term " installation ",
" connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally connect
It connects；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also indirectly connected through an intermediary, it can
To be the connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood with concrete condition
Concrete meaning in the present invention.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
Finally, it should be noted that embodiment described above, only specific embodiment of the present utility model, to illustrate this
The technical solution of utility model, rather than its limitations, the protection scope of the utility model is not limited thereto, although referring to aforementioned
The utility model is described in detail in embodiment, those skilled in the art should understand that: it is any to be familiar with this skill
The technical staff in art field within the technical scope disclosed by the utility model, still can be to skill documented by previous embodiment
Art scheme modify or can readily occur in variation or equivalent replacement of some of the technical features；And these modifications,
Variation or replacement, the spirit and model of the utility model embodiment technical solution that it does not separate the essence of the corresponding technical solution
It encloses, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model is answered described is wanted with right
Subject to the protection scope asked.
Claims (9)
1. a kind of power supply system, which is characterized in that the system comprises: three port electric power electric transformers, the first renewable energy
Source system, the first energy-storage system, the second renewable energy system and the second energy-storage system；
The input terminal of three port electric power electric transformer is connect with high-voltage fence；
The friendship of first renewable energy system and first energy-storage system with three port electric power electric transformer
The connection of galvanic electricity output port；
Second renewable energy system and second energy-storage system are straight with three port electric power electric transformer
The connection of galvanic electricity output port.
2. system according to claim 1, which is characterized in that first renewable energy system includes the first photovoltaic system
System and the first wind energy system.
3. system according to claim 2, which is characterized in that second renewable energy system includes the second photovoltaic system
System, the second wind energy system.
4. system according to claim 3, which is characterized in that first photovoltaic system, first wind energy system and
First energy-storage system is connect by ac bus with the alternating current output port of three port electric power electric transformer；Institute
It states the second photovoltaic system, the second wind energy system and second energy-storage system and passes through DC bus and three port power electronics
The DC output end mouth of transformer connects.
5. system according to claim 4, which is characterized in that between first photovoltaic system and the ac bus also
Including AC/DC converter；The AC/DC converter is used to direct current being converted to alternating current.
6. system according to claim 4, which is characterized in that between first wind energy system and the ac bus also
Including exchange/exchange converter；The exchange/exchange converter is for converting the different alternating current of voltage class.
7. system according to claim 4, which is characterized in that between second photovoltaic system and the DC bus also
Including DC-DC converter；The DC-DC converter is for converting the different direct current of voltage class.
8. system according to claim 4, which is characterized in that between second wind energy system and the DC bus also
Including AC/DC converter；The AC/DC converter is for converting alternating current to direct current.
9. system according to claim 4, which is characterized in that between second energy-storage system and the DC bus also
Including DC-DC converter；The DC-DC converter is for converting the different direct current of voltage class.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821371986.3U CN208835764U (en) | 2018-08-23 | 2018-08-23 | Power supply system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821371986.3U CN208835764U (en) | 2018-08-23 | 2018-08-23 | Power supply system |
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| CN208835764U true CN208835764U (en) | 2019-05-07 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108879788A (en) * | 2018-08-23 | 2018-11-23 | 广东电网有限责任公司 | Power supply system and power supply system start method |
| CN110970922A (en) * | 2019-11-27 | 2020-04-07 | 广东电网有限责任公司 | Alternating current-direct current hybrid distributed renewable energy system |
| CN112003337A (en) * | 2020-09-22 | 2020-11-27 | 广东电网有限责任公司 | Alternating current-direct current hybrid system framework of industrial park distribution network |
-
2018
- 2018-08-23 CN CN201821371986.3U patent/CN208835764U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108879788A (en) * | 2018-08-23 | 2018-11-23 | 广东电网有限责任公司 | Power supply system and power supply system start method |
| CN110970922A (en) * | 2019-11-27 | 2020-04-07 | 广东电网有限责任公司 | Alternating current-direct current hybrid distributed renewable energy system |
| CN112003337A (en) * | 2020-09-22 | 2020-11-27 | 广东电网有限责任公司 | Alternating current-direct current hybrid system framework of industrial park distribution network |
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