CN217335184U - Offshore booster station power utilization system with energy storage unit system as emergency power supply - Google Patents
Offshore booster station power utilization system with energy storage unit system as emergency power supply Download PDFInfo
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- CN217335184U CN217335184U CN202123080991.3U CN202123080991U CN217335184U CN 217335184 U CN217335184 U CN 217335184U CN 202123080991 U CN202123080991 U CN 202123080991U CN 217335184 U CN217335184 U CN 217335184U
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
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Abstract
The utility model provides an electric system of an offshore booster station with an energy storage unit system as an emergency power supply, which comprises a 0.4kV I section normal bus, a 0.4kV II section normal bus, a III section energy storage emergency bus, an energy storage unit system, a double-power transfer switch and a quick transfer switch; the alternating current output side of the energy storage unit system is communicated with or opened from the III-section energy storage emergency bus; the energy storage unit system is communicated with or opened through a fast change-over switch and a double-power-supply change-over switch, and the double-power-supply change-over switch is respectively communicated with or opened with a 0.4kV I section normal bus and a 0.4kV II section normal bus so as to form the 0.4kV I section normal bus and the 0.4kV II section normal bus which are respectively used as alternating current power supply input of the energy storage unit system. The utility model discloses can improve the reliability of marine booster station power consumption system, follow-up marine booster station in service energy storage unit system daily maintenance work load is few, advantages such as noiselessness influence during the operation.
Description
Technical Field
The utility model belongs to the technical field of electrical design, especially, relate to an energy storage unit system is as emergency power source's marine booster station power consumption system.
Background
At present, the built and established offshore wind farm booster stations all adopt diesel generators as emergency/auxiliary power supplies of the offshore booster stations, and the diesel generators have large capacities and can meet the power supply requirements of the emergency and auxiliary power supplies.
However, the diesel engine system needs to be started and maintained regularly, the starting time is different from tens of seconds, the starting time is slightly long, and the first starting fails. And the diesel generator system is used as an emergency/auxiliary power supply of the offshore booster station, and an oil tank chamber is required to be separately arranged for placing an oil tank, so that the construction cost of the structure is increased.
The energy storage battery technology is an industry rapidly developed in recent years, and has many engineering applications in onshore micro-grids, emergency energy sources and the like.
In conclusion, the diesel generator is used as an emergency/auxiliary power supply of the offshore wind power booster station, and has the defects of poor reliability, need of regular maintenance, larger structural investment, noise, emission pollution and the like during power generation of the diesel generator.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of current diesel generator as the emergent auxiliary power source of marine booster station, the utility model provides an energy storage unit system is as the marine booster station power consumption system of emergency power source.
For this reason, the above-mentioned purpose of the present invention is achieved by the following technical solutions:
the utility model provides an energy storage unit system is as marine booster station power consumption system of emergency power supply which characterized in that: the power utilization system of the offshore booster station with the energy storage unit system as an emergency power supply comprises a 0.4kV I section normal bus, a 0.4kV II section normal bus, a III section energy storage emergency bus, an energy storage unit system, a double-power transfer switch and a quick transfer switch;
the alternating current output side of the energy storage unit system is communicated with or opened from the III-section energy storage emergency bus;
the energy storage unit system is communicated with or opened through a fast change-over switch and a double-power-supply change-over switch, and the double-power-supply change-over switch is respectively communicated with or opened with a 0.4kV I section normal bus and a 0.4kV II section normal bus so as to form the 0.4kV I section normal bus and the 0.4kV II section normal bus which are respectively used as alternating current power supply input of the energy storage unit system.
When adopting above-mentioned technical scheme, the utility model discloses can also adopt or make up and adopt following technical scheme:
as the utility model discloses a preferred technical scheme: the 0.4kV I section normal bus is led from a 35kV I section bus through a 1# station transformer.
As the utility model discloses a preferred technical scheme: and the 0.4kV II section normal bus is led from a 35kV II section bus through a 2# station transformer.
During normal work, the 1# station is with becoming the normal generating line of power supply 0.4kV I section, and the 2# station is with becoming the normal generating line of power supply 0.4kV II section, and the emergent generating line of III section energy storage passes through the AC input power supply direct power supply of energy storage unit system.
The direct power supply can be directly connected with the 0.4kV I section normal bus or the 0.4kV II section normal bus for power supply.
The energy storage unit system has two operation modes of off-grid operation and grid-connected operation.
When the energy storage unit system is in an off-grid operation mode, the energy storage unit system works in a voltage/frequency (V/F) mode to provide stable voltage and frequency for a load.
And when the energy storage unit system is in a grid-connected mode, the energy storage unit system is converted into an active/reactive (P/Q) mode to operate.
In an off-grid state, when a rapid switch cabinet (ATS) detects that a power grid is recovered, power grid information is transmitted to an energy storage unit system, the energy storage unit system performs synchronization according to amplitude and frequency information of energy storage output voltage, when the ATS detects that the energy storage output voltage is completely consistent with the phase of the power grid, a rapid switch in the ATS control cabinet is closed, and the energy storage unit system is switched from an off-grid mode to a grid-connected mode. In a grid-connected state, when a rapid switch cabinet (ATS) detects that a power grid loses power, power grid information is transmitted to an energy storage unit system, a rapid switch is switched off, and the energy storage unit system enters an off-grid running state.
The utility model discloses an energy storage unit system is as the emergency power supply of marine booster station power consumption system, energy storage unit system configuration fast switch has better flexibility and response speed fast, can improve marine booster station power consumption system's reliability, follow-up marine booster station in service energy storage unit system daily maintenance work load is few, advantages such as noiselessness influence during operation, accord with the theory of engineering technological innovation with energy storage unit system as the emergency power supply of marine booster station, have the popularization effect.
Drawings
Fig. 1 is the schematic diagram of the electric system of the offshore booster station with the energy storage unit system as an emergency power supply.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific examples.
The energy storage unit system 1 is used as an emergency power supply of an electric system of the offshore booster station, and the electric system of the offshore booster station 0.4kV station comprises a 0.4kV I section normal bus 4, a II section normal bus 5, a III section energy storage emergency bus 6, an energy storage unit system 1, a quick change-over switch 2 and a dual power supply change-over switch 3.
The 0.4kV I section normal bus 1 is led from a 35kV I section bus 9 through a 1# station transformer 7; the 0.4kV II section normal bus 5 is led from a 35kV II section bus 10 through a 2# station transformer 8. The energy storage unit system 1 respectively leads 1 path from the normal bus 4 of the section I and the normal bus 5 of the section II as an alternating current power supply input (double power supply switching power supply), and the alternating current output side of the energy storage unit system 1 is connected with the emergency bus 6 of the section III.
During normal work, the station of 1# is with becoming the normal generating line 4 of 7 power supply I sections, and the station of 2# is with becoming the normal generating line 5 of 8 power supply II sections, and the emergent generating line 6 of III section energy storage is through the direct power supply of the AC input power supply of energy storage unit system 1, and direct power supply can be followed the normal generating line 4 of 0.4kV I section or the normal generating line 5 of 0.4kV II section and is directly drawn and connect the power supply.
The energy storage unit system comprises two operation modes of off-grid operation and grid-connected operation, and when the energy storage unit system is in the off-grid operation mode, the energy storage unit system works in a voltage/frequency (V/F) mode to provide stable voltage and frequency for a load. When a rapid switch cabinet (ATS) detects that the power grid is recovered, power grid information is transmitted to an energy storage unit system, the energy storage unit system performs synchronization according to amplitude and frequency information of energy storage output voltage, when the ATS detects that the energy storage output voltage is completely consistent with the phase of the power grid, a rapid switch in an ATS control cabinet is closed, and the energy storage unit system is switched from an off-grid mode to a grid-connected mode. When the energy storage unit system is in a grid-connected operation mode, the energy storage unit system is converted into an active/reactive (P/Q) mode to operate. In a grid-connected state, when a rapid switch cabinet (ATS) detects that a power grid loses power, power grid information is transmitted to an energy storage unit system, a rapid switch is switched off, and the energy storage unit system enters an off-grid running state.
The above description is given for the purpose of illustration only, and not for the purpose of limitation, of the present invention, and it is intended that all equivalent alterations and modifications within the spirit and scope of the invention be covered by the appended claims.
Claims (3)
1. The utility model provides an energy storage unit system is as emergency power source's marine booster station power consumption system which characterized in that: the power utilization system of the offshore booster station with the energy storage unit system as an emergency power supply comprises a 0.4kV I section normal bus, a 0.4kV II section normal bus, a III section energy storage emergency bus, an energy storage unit system, a double-power-supply change-over switch and a quick change-over switch;
the alternating current output side of the energy storage unit system is communicated with or opened from the III-section energy storage emergency bus;
the energy storage unit system is communicated or opened with a double-power-supply change-over switch through a quick change-over switch, and the double-power-supply change-over switch is respectively communicated or opened with a 0.4kV I section normal bus and a 0.4kV II section normal bus so as to form the 0.4kV I section normal bus and the 0.4kV II section normal bus which are respectively used as alternating current power supply input of the energy storage unit system.
2. The electric system for the offshore booster station with the energy storage unit system as an emergency power supply according to claim 1, characterized in that: the 0.4kV I section normal bus is led from a 35kV I section bus through a 1# station transformer.
3. The electric system for the offshore booster station with the energy storage unit system as an emergency power supply according to claim 1, characterized in that: and the 0.4kV II section normal bus is led from a 35kV II section bus through a 2# station transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123080991.3U CN217335184U (en) | 2021-12-09 | 2021-12-09 | Offshore booster station power utilization system with energy storage unit system as emergency power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123080991.3U CN217335184U (en) | 2021-12-09 | 2021-12-09 | Offshore booster station power utilization system with energy storage unit system as emergency power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217335184U true CN217335184U (en) | 2022-08-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123080991.3U Active CN217335184U (en) | 2021-12-09 | 2021-12-09 | Offshore booster station power utilization system with energy storage unit system as emergency power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217335184U (en) |
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2021
- 2021-12-09 CN CN202123080991.3U patent/CN217335184U/en active Active
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