CN215681892U - Intelligent integrated system for multi-energy efficient complementary marine renewable energy power generation - Google Patents
Intelligent integrated system for multi-energy efficient complementary marine renewable energy power generation Download PDFInfo
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- CN215681892U CN215681892U CN202121315619.3U CN202121315619U CN215681892U CN 215681892 U CN215681892 U CN 215681892U CN 202121315619 U CN202121315619 U CN 202121315619U CN 215681892 U CN215681892 U CN 215681892U
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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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- 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
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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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
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
Abstract
The utility model discloses a multi-energy efficient complementary offshore renewable energy power generation intelligent integrated system which is characterized by comprising a ocean current energy power generation device, a wind energy power generation device, a solar photovoltaic power generation device, a control box, an energy storage battery pack and a load, wherein the ocean current energy power generation device is electrically connected with an AC/DC inverter after being connected in parallel with the wind energy power generation device, the AC/DC inverter is electrically connected with a DC/DC inverter, the solar photovoltaic power generation device is electrically connected with the DC/DC inverter, the DC/DC inverter is electrically connected with the control box, the control box is respectively electrically connected with the energy storage battery pack and the load, the energy storage system is adopted to store the electric quantity of redundant load power consumption demands generated by the ocean current energy power generation system, the wind energy power generation system and the solar photovoltaic power generation system, and when the electric quantity of the load power consumption demands is not enough, so as to solve the problems of stability and high-efficiency utilization of energy.
Description
Technical Field
The utility model relates to an offshore power generation device, in particular to an offshore renewable energy power generation intelligent integrated system with multi-energy and high-efficiency complementation.
Background
In the face of the problems of sea area information monitoring and defense, the aggravation of contradiction between the gradual exhaustion of conventional energy and the rapid development of economy, the problems of environmental pollution, high cost and the like caused by the conventional energy, the development and popularization of a high-efficiency and environment-friendly renewable energy power generation technology is urgent. Ocean breadth member covers nearly 71% of the earth surface, and contains huge energy, so that ocean energy power generation is taken as a novel clean energy at sea, and becomes a research hotspot in the field of renewable energy. Most of offshore renewable energy sources have the problems of intermittency, instability and the like, stable and continuous electric energy is difficult to provide by adopting a single energy source, the experience of land multi-energy complementary power generation is used for reference, and the ocean energy multi-energy complementary power generation technology is adopted, so that a great promoting effect is generated on solving the problem of energy supply and maintaining the ocean ecological environment.
At present, the foreign research on the multi-energy efficient complementary intelligent power supply technology mainly aims at the optimization design of system structure and capacity, stable power supply and the like. The study of the implementation and performance of the energy storage mode of the complementary power generation system is conducted by American and Australian scholars; the operating cost, the reliability and the expansion of a small wind-solar hybrid power generation system are researched in Canada; greek has studied the optimal configuration of the capacity of complementary farms with the aim of minimizing costs. Denmark has created a wind energy and wave energy integrated power generation integrated platform named Poseidon 37. And a prototype test is carried out in open sea, the size of the platform and the parameters of the power generation device are continuously optimized, and the power generation cost is reduced to 0.1-0.15 Euro.
Currently, the research on the multi-energy efficient complementary intelligent power supply technology in China mostly focuses on the aspects of system optimization design, monitoring management and the like. Complementary power generation technology is adopted in two sets of small wind-solar complementary power stations located in natural protection stations of Yangtze river in China at first; the first multi-energy complementary power generation system for realizing commercial operation is a large-scale wind-solar complementary power generation system operated by the grid-connected mode of the island of south China, Guangdong.
The development conditions of ocean multi-energy complementary integrated power generation equipment and technology at home and abroad are analyzed, and it can be seen that many research institutions and companies try multi-energy integrated power generation technology, device production and field test are carried out in a clear manner, and few devices run on a large scale. However, in general, no commercial and industrial examples are available in the world, mainly because the research and development cost is still high in the technology climbing stage, most of the leading-edge theoretical research stays in the laboratory stage, and the hatching is not performed; in addition, the power generation of the previous ocean temperature difference energy power generation experimental project is low, the technology in all aspects is continuously perfected, and the matching of the electric energy storage technology and the control system needs to be further improved.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides an offshore renewable energy power generation intelligent integrated system which is multifunctional, efficient and complementary by taking an offshore floating power generation platform as a basis and combining a wind driven generator with H-shaped blades, a solar photovoltaic panel and a horizontal shaft ocean current energy generator.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
the intelligent integrated system comprises a ocean current energy power generation device, a wind energy power generation device, a solar photovoltaic power generation device, a control box, an energy storage battery pack and a load, wherein the ocean current energy power generation device and the wind energy power generation device are electrically connected with an AC/DC inverter after being connected in parallel, the AC/DC inverter is electrically connected with a DC/DC inverter, the solar photovoltaic power generation device is electrically connected with the DC/DC inverter, the DC/DC inverter is electrically connected with the control box, and the control box is respectively electrically connected with the energy storage battery pack and the load.
The energy storage battery pack is also electrically connected with an intelligent battery management system.
The intelligent integrated system further comprises a diesel generator which is electrically connected with the AC/DC inverter and the intelligent battery management system respectively.
And the control box is electrically connected with the load through a bidirectional inverter.
The energy storage battery pack is electrically connected with the load through a DC/AC inverter.
And a charge-discharge control module is arranged in the control box.
And relay switches are respectively arranged at the output ends of the ocean current energy power generation device, the wind energy power generation device and the solar photovoltaic power generation device.
The control box is externally connected with a display screen.
The utility model has the beneficial effects that: the utility model adopts the energy storage system to store the electric quantity of redundant load power consumption demands generated by the ocean current energy power generation system, the wind energy power generation system and the solar photovoltaic power generation system, and when the generated energy is not enough to provide the load power consumption demands, the electric energy is transmitted to the load, so as to solve the problems of stability and high-efficiency utilization of energy. The scheme can realize the electric energy storage management with the capacity of more than 100KW.h, and realize the effective and full utilization of the electric energy; the multifunctional complementation of various renewable energy sources is integrated, offshore energy sources are fully and efficiently utilized in a limited space, and a ocean current energy power generation system, a wind energy power generation system and a solar photovoltaic power generation system are coupled; the problems of poor electric energy output stability and insufficient supply caused by the operation of a single power generation device are solved, and the control system is used for unified management and maintenance, so that the operation cost is low, the energy utilization rate is high, and the electric energy output is stable; the bus voltage is reasonably configured, the conversion times and efficiency of AC/DC and DC/DC in the system are controlled, and the system loss is low on the premise of meeting the power supply requirement of the system.
Drawings
The utility model is further illustrated with reference to the following figures and examples.
FIG. 1 is a system schematic of the present invention;
FIG. 2 is a schematic diagram of a smart battery management system;
FIG. 3 is a schematic diagram of the structure of the ocean current energy power generation device;
fig. 4 is a schematic structural diagram of the wind power generation apparatus.
Detailed Description
Referring to fig. 1 to 4, the intelligent integrated system for multi-energy efficient complementary marine renewable energy power generation comprises a ocean current energy power generation device, a wind energy power generation device, a solar photovoltaic power generation device, a control box, an energy storage battery pack and a load, wherein the ocean current energy power generation device is electrically connected with an AC/DC inverter after being connected with the wind energy power generation device in parallel, the AC/DC inverter is electrically connected with a DC/DC inverter, the solar photovoltaic power generation device is electrically connected with the DC/DC inverter, the DC/DC inverter is electrically connected with the control box, and the control box is electrically connected with the energy storage battery pack and the load respectively.
In this embodiment, the ocean current energy power generation device adopts two horizontal shaft semi-submersible type impeller power generation devices which are respectively arranged at two sides of an offshore power generation platform, and the impellers adopt S-shaped blades; the ocean current energy drives the impeller to rotate, and the impeller transmits the torque to the coaxial generator to generate electricity;
the wind power generation device adopts two H-shaped vertical axis wind power generators which are respectively and symmetrically arranged at two sides of the offshore power generation platform, and the H-shaped vertical axis wind power generators adopt blades in the shape of an airplane wing;
the solar photovoltaic power generation device adopts a photosynthetic silicon energy/36V 300W single crystal solar panel, and the solar panel is arranged at the top end of the offshore power generation platform;
the energy storage battery pack is used for storing electric energy generated by several power generation devices, and has the functions of supplying power to a load and transmitting electric quantity to a power grid.
The load is a fishery feed feeding system, and the fishery feed feeding system is composed of a feed storage device and a pump. Generally installing the tail part of the ocean power generation platform, and starting within a set time period;
the output voltage of the ocean current energy power generation device and the output voltage of the wind energy power generation device are subjected to voltage stabilization, voltage regulation and constant current treatment through the three-phase rectifier, the output voltage is stable voltage, the energy storage battery pack is charged through the control box, and the three sets of power generation devices can be inverted to electric energy of a proper load through another path of the control box to supply power to the load when necessary.
Energy storage battery group still electricity is connected with intelligent Battery Management System (BMS), when carrying out charge-discharge protection to the energy storage battery group, monitors the state of group battery, be equipped with charge-discharge control module group in the control box, the charge-discharge control module group of control box is connected the charge-discharge of back control energy storage battery group with intelligent battery management system, monitors storage battery state at any time in the process: voltage, charging current, temperature, capacity, etc. of each unit cell. Adjusting charging voltage and current in real time, and stopping charging when the electric quantity of the battery pack reaches a set upper limit; if the fishery feed feeding system needs to be started at a certain moment, the electric energy of the energy storage battery pack is controlled to be converted into appropriate alternating current through the inverter for load use.
The intelligent integrated system also comprises a diesel generator, the diesel generator is respectively electrically connected with the AC/DC inverter and the intelligent battery management system, the power generation device can not supply power normally, when the electric quantity of the energy storage battery pack is about to be exhausted, the battery management system gives out a corresponding signal to start the diesel generator on the platform, the diesel generator supplies power to a load, if redundant electric energy exists, the storage battery is charged, and when the storage battery pack is fully charged, the diesel generator is automatically closed.
And the control box is electrically connected with the load through a bidirectional inverter.
The energy storage battery pack is electrically connected with the load through the DC/AC inverter, the energy storage battery pack is connected to the grid to transmit electric energy, the DC electricity is converted into AC electricity meeting grid connection requirements after the DC/AC inverter and phase-locked frequency conversion, and the AC electricity is connected to the electric energy meter to meter electric quantity and then is connected to the grid to transmit electricity.
Relay switches are respectively arranged at the output ends of the ocean current energy power generation device, the wind energy power generation device and the solar photovoltaic power generation device, and the output end of the power generation device is connected with the relay switches and then connected with the control box through an inverter; wherein between control box and the energy storage group battery, connect charge-discharge management intelligent system, carry out charge-discharge management and protection to energy storage group battery, when the produced electric quantity of power generation facility was big enough, when exceeding the threshold value of relay coil, the relay coil got the electricity and impels normally open switch closure for the electric quantity access control panel that power generation system produced charges for the energy storage group battery.
The control box is externally connected with a display screen. A
The utility model adopts the energy storage system to store the electric quantity of redundant load power consumption demands generated by the ocean current energy power generation system, the wind energy power generation system and the solar photovoltaic power generation system, and when the generated energy is not enough to provide the load power consumption demands, the electric energy is transmitted to the load, so as to solve the problems of stability and high-efficiency utilization of energy. The scheme can realize the electric energy storage management with the capacity of more than 100KW.h, and realize the effective and full utilization of the electric energy; the multifunctional complementation of various renewable energy sources is integrated, offshore energy sources are fully and efficiently utilized in a limited space, and a ocean current energy power generation system, a wind energy power generation system and a solar photovoltaic power generation system are coupled; the problems of poor electric energy output stability and insufficient supply caused by the operation of a single power generation device are solved, and the control system is used for unified management and maintenance, so that the operation cost is low, the energy utilization rate is high, and the electric energy output is stable; the bus voltage is reasonably configured, the conversion times and efficiency of AC/DC and DC/DC in the system are controlled, and the system loss is low on the premise of meeting the power supply requirement of the system.
The above embodiments do not limit the scope of the present invention, and those skilled in the art can make equivalent modifications and variations without departing from the overall concept of the present invention.
Claims (8)
1. The intelligent integrated system is characterized by comprising a ocean current energy power generation device, a wind energy power generation device, a solar photovoltaic power generation device, a control box, an energy storage battery pack and a load, wherein the ocean current energy power generation device and the wind energy power generation device are electrically connected with an AC/DC inverter after being connected in parallel, the AC/DC inverter is electrically connected with a DC/DC inverter, the solar photovoltaic power generation device is electrically connected with the DC/DC inverter, the DC/DC inverter is electrically connected with the control box, and the control box is respectively electrically connected with the energy storage battery pack and the load.
2. The intelligent integrated multi-energy efficient complementary offshore renewable energy generation system according to claim 1, wherein the energy storage battery pack is further electrically connected with an intelligent battery management system.
3. The intelligent integrated multi-energy efficient complementary marine renewable energy power generation system of claim 2, further comprising a diesel generator electrically connected to the AC/DC inverter and the intelligent battery management system, respectively.
4. The intelligent integrated system for multi-energy efficient complementary offshore renewable energy power generation of claim 1, wherein a charge and discharge control module is arranged in the control box.
5. The intelligent integrated multi-energy efficient complementary offshore renewable energy generation system according to claim 1, wherein the control box is electrically connected to the load via a bi-directional inverter.
6. The intelligent integrated multi-energy efficient complementary offshore renewable energy generation system according to claim 1, wherein the energy storage battery pack is electrically connected to the load through a DC/AC inverter.
7. The intelligent integrated system for multi-energy efficient complementary offshore renewable energy power generation of claim 1, wherein the output ends of the ocean current energy power generation device, the wind energy power generation device and the solar photovoltaic power generation device are respectively provided with a relay switch.
8. The intelligent integrated system for multi-energy efficient complementary offshore renewable energy power generation of claim 1, wherein the control box is externally connected with a display screen.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121315619.3U CN215681892U (en) | 2021-06-10 | 2021-06-10 | Intelligent integrated system for multi-energy efficient complementary marine renewable energy power generation |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121315619.3U CN215681892U (en) | 2021-06-10 | 2021-06-10 | Intelligent integrated system for multi-energy efficient complementary marine renewable energy power generation |
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| CN215681892U true CN215681892U (en) | 2022-01-28 |
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| CN202121315619.3U Active CN215681892U (en) | 2021-06-10 | 2021-06-10 | Intelligent integrated system for multi-energy efficient complementary marine renewable energy power generation |
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- 2021-06-10 CN CN202121315619.3U patent/CN215681892U/en active Active
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