CN218867934U - Intelligent power supply system with distributed power supply - Google Patents
Intelligent power supply system with distributed power supply Download PDFInfo
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- CN218867934U CN218867934U CN202320151558.4U CN202320151558U CN218867934U CN 218867934 U CN218867934 U CN 218867934U CN 202320151558 U CN202320151558 U CN 202320151558U CN 218867934 U CN218867934 U CN 218867934U
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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Abstract
The utility model provides an intelligence power supply system who contains distributed generator relates to electric wire netting technical field, and this power supply system includes: the photovoltaic module is connected with the first direct current bus, the first direct current bus is connected with a first storage battery, and the first direct current bus is connected with the alternating current bus through a first inverter; the fan module is respectively connected with the energy storage module and a second inverter through a first rectifier, and the second inverter is connected with the alternating current bus; and the alternating current bus is connected with a power grid through a first switch. A power supply system is formed by connecting a distributed power supply containing photovoltaic modules and fan modules with a power grid through a direct current bus or an alternating current bus, so that reliable power supply can be provided for loads with different properties.
Description
Technical Field
The utility model belongs to the technical field of the electric wire netting, in particular to contain distributed generator's intelligent power supply system.
Background
Due to the shortage of fossil energy resources and the growing pressure of socioeconomic development on the ecological environment, new energy resources play an increasingly important role in the supply of electricity.
How to set a power supply system including a distributed power supply becomes an important research topic faced by new energy power supply design, for example, how to set a power supply system including a distributed power supply for a sensitive load, and how to set a power supply system including a distributed power supply for an industrial load.
SUMMERY OF THE UTILITY MODEL
The utility model provides an intelligence power supply system who contains distributed generator has solved one of at least of above-mentioned technical problem.
The technical scheme of the utility model is realized like this: an intelligent power supply system with a distributed power supply comprises a first direct current bus, an alternating current bus, a photovoltaic module and a fan module, wherein,
the photovoltaic module is connected with the first direct current bus, the first direct current bus is connected with the first storage battery, and the first direct current bus is connected with the alternating current bus through the first inverter;
the fan module is respectively connected with the energy storage module and a second inverter through a first rectifier, and the second inverter is connected with the alternating current bus;
and the alternating current bus is connected with a power grid through a first switch.
In a preferred embodiment, the system further comprises a diesel engine module, and the diesel engine module is connected with the alternating current bus through a first converter.
As a preferred embodiment, the system further comprises a water turbine module, and the water turbine module is connected with the alternating current bus through a second converter.
As a preferred embodiment, the system further comprises a gas turbine module, the gas turbine module is connected with a second direct current bus through a third inverter, the second direct current bus is connected with a second storage battery, the second direct current bus supplies power for a sensitive load, and the second direct current bus is connected with a first direct current bus.
As a preferred embodiment, the ac bus supplies power to an important industrial load.
In a preferred embodiment, the first dc bus supplies power to a sensitive load.
As a preferred embodiment, the grid structure further comprises a rectifier, and the first dc bus and the second dc bus are connected by a tie switch.
After the technical scheme is adopted, the beneficial effects of the utility model are that: a power supply system is formed by connecting a distributed power supply comprising a photovoltaic module and a fan module with a power grid through a direct current bus or an alternating current bus, so that reliable power supply can be provided for loads with different properties.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive labor.
Fig. 1 is a schematic diagram of an intelligent power supply system including a distributed power supply according to the present invention;
fig. 2 is another schematic diagram of the intelligent power supply system with distributed power sources according to the present invention;
fig. 3 is another schematic diagram of the intelligent power supply system with distributed power sources according to the present invention;
fig. 4 is a schematic connection diagram of the first dc bus and the second dc bus of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, the present embodiment provides an intelligent power supply system including a distributed power supply, a first dc bus, an ac bus, a photovoltaic module, and a fan module, wherein,
the photovoltaic module is connected with the first direct current bus, the first direct current bus is connected with a first storage battery, and the first direct current bus is connected with an alternating current bus through a first inverter;
the fan module is respectively connected with the energy storage module and a second inverter through a first rectifier, and the second inverter is connected with the alternating current bus;
and the alternating current bus is connected with a power grid through a first switch.
In this embodiment, a dc power supply output by the photovoltaic module is connected to the first dc bus to supply power to the load, a storage battery is further disposed in the microgrid structure formed by the photovoltaic modules, the storage battery is connected to the first dc bus, when the electric energy output by the photovoltaic module exceeds the required power consumption of the microgrid load, the storage battery can be used to store the electric energy, and after the first storage battery is fully charged, the ac bus can be supplied with power through the first dc bus and the first inverter, so as to supply power to the power grid. Optionally, if the electric energy provided by the microgrid is insufficient, electricity can be taken from the alternating-current bus. In the figure, AC/DC denotes a rectifier for converting alternating current into direct current, DC/AC denotes an inverter for converting direct current into alternating current, and AC/AC denotes a converter for converting alternating current into alternating current to suit the requirements of the access cable or system.
In some embodiments, a diesel module is also included, the diesel module being connected to the ac bus via a first converter. In some application occasions, a diesel engine can be used for generating electricity, and a micro-grid is formed by diesel engine generating modules and is connected with an alternating current bus through an inverter. The converter in this embodiment is an AC/AC converter.
In some embodiments, not shown, further comprising a turbine module, said turbine module being connected to said ac bus via a second converter. The converter in this embodiment is an AC/AC converter.
In some embodiments, as shown in fig. 2, the system further comprises a gas turbine module, wherein the gas turbine module is connected with a second direct current bus through a third inverter, the second direct current bus is connected with a second storage battery, the second direct current bus supplies power for the sensitive load, and the second direct current bus supplies power for the sensitive load.
Because the power generation of the gas turbine is relatively stable, the gas turbine can supply power for sensitive loads in a microgrid formed by the gas turbine.
In some embodiments, the ac bus supplies power to a critical industrial load. The reliability of power supply can be provided by using the alternating current bus to supply power for important industrial loads.
In some embodiments, as shown in fig. 3, the first inverter, the second inverter, the third inverter, and the first converter are each connected to the ac bus via a switch. The arrangement is beneficial to finding and removing faults and improves the reliability of a power supply system.
In some embodiments, the first dc bus supplies power to a sensitive load. And the first direct current bus and the second direct current bus are connected through a tie switch. According to the arrangement, the first direct current bus and the second direct current bus form a ring network, and the reliability of power supply of the sensitive load is further improved.
In some embodiments, as shown in fig. 4, the first dc bus and the second dc bus are connected by a dc transformer, so that dc buses between different voltage classes can be connected. In fig. 4, a block where the first dc bus and the second dc bus are connected is a device or a microgrid connected to the dc bus, which is not limited in this embodiment.
Alternatively, a plurality of secondary systems such as an energy management system, a control system, a containment system, and a monitoring system may be provided in the power supply system. The systems can be used for monitoring the running condition of each microgrid, controlling whether the microgrid is connected to a power grid or not, controlling the action of each switch and the like.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. An intelligent power supply system including a distributed power supply, comprising: a first direct current bus, an alternating current bus, a photovoltaic module and a fan module, wherein,
the photovoltaic module is connected with the first direct current bus, the first direct current bus is connected with a first storage battery, and the first direct current bus is connected with an alternating current bus through a first inverter;
the fan module is respectively connected with the energy storage module and a second inverter through a first rectifier, and the second inverter is connected with the alternating current bus;
and the alternating current bus is connected with a power grid through a first switch.
2. The intelligent power supply system with distributed power sources of claim 1, wherein: the diesel engine module is connected with the alternating current bus through a first converter.
3. The intelligent power supply system with distributed power sources of claim 2, wherein: the water turbine module is connected with the alternating current bus through a second converter.
4. The intelligent power supply system with distributed power sources as claimed in claim 3, wherein: the gas turbine module is connected with a second direct-current bus through a third inverter, the second direct-current bus is connected with a second storage battery, the second direct-current bus is used for supplying power for sensitive loads, and the second direct-current bus is used for supplying power for the sensitive loads.
5. The intelligent power supply system with distributed power sources of claim 4, wherein: the alternating current bus supplies power to important industrial loads.
6. The intelligent power supply system with distributed power sources of claim 5, wherein: the first inverter, the second inverter, the third inverter and the first converter are respectively connected with the alternating current bus through switches.
7. The intelligent power supply system with distributed power sources of claim 6, wherein: the first direct current bus supplies power to the sensitive load.
8. The intelligent power supply system with distributed power sources of claim 7, wherein: the first direct current bus and the second direct current bus are connected through a tie switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320151558.4U CN218867934U (en) | 2023-02-02 | 2023-02-02 | Intelligent power supply system with distributed power supply |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320151558.4U CN218867934U (en) | 2023-02-02 | 2023-02-02 | Intelligent power supply system with distributed power supply |
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| CN218867934U true CN218867934U (en) | 2023-04-14 |
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| CN202320151558.4U Active CN218867934U (en) | 2023-02-02 | 2023-02-02 | Intelligent power supply system with distributed power supply |
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2023
- 2023-02-02 CN CN202320151558.4U patent/CN218867934U/en active Active
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