CN220929572U - Anti-backup energy system of wind turbine generator system - Google Patents
Anti-backup energy system of wind turbine generator system Download PDFInfo
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- CN220929572U CN220929572U CN202322719844.9U CN202322719844U CN220929572U CN 220929572 U CN220929572 U CN 220929572U CN 202322719844 U CN202322719844 U CN 202322719844U CN 220929572 U CN220929572 U CN 220929572U
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Abstract
The utility model provides an anti-backup energy system of a wind turbine, which comprises a generator set and a backup power supply switching control cabinet, wherein the generator set comprises an engine, a generator and an outlet breaker, the backup power supply switching control cabinet comprises a generator step-up transformer and a backup power supply switching breaker, the engine drives the generator to be electrically connected with the generator step-up transformer through the outlet breaker, the generator step-up transformer is electrically connected with the backup power supply switching breaker, a main control system auxiliary transformer and a yaw system auxiliary transformer respectively, and the backup power supply switching breaker is electrically connected with a main loop and a main transformer of the wind turbine. According to the utility model, the diesel generator set can be started through the master control and 5G or satellite communication under the conditions that the power grid is powered down in typhoon weather and the power grid is powered down for a long time before typhoon comes, so that the wind generator set is ensured to maintain the anti-typhoon mode operation during typhoon.
Description
Technical Field
The utility model relates to the technical field of backup power sources of wind turbines, in particular to an anti-backup energy source system of a wind turbine.
Background
During typhoons, the load of the whole wind turbine generator is increased, and the conditions of blade fracture and tower falling can be caused. In order to reduce damage of typhoons to fans, active yaw load reduction of the fans needs to be controlled. However typhoons come to a temporary, potentially risking disconnection of the wind farm from the grid. If the wind turbine generator is disconnected and powered down, the wind turbine generator loses the working power supply and cannot be switched to the anti-platform mode active yaw load reduction, so that major accidents and economic losses can be caused. Therefore, a backup energy system needs to be configured to supply power to a main control system and a yaw system of the wind turbine generator in an emergency.
At present, the switching of a plurality of backup energy systems is controlled only by a main control system, and the backup energy systems cannot be started under the condition that a wind turbine generator has power failure, so that the backup energy power supply requirements under certain special conditions cannot be met.
Disclosure of utility model
The utility model aims to overcome the defects of the prior art, and provides an anti-typhoon backup energy system for a wind turbine, which can start a diesel generator set through master control and 5G or satellite communication under the conditions that a power grid is powered down in typhoon weather and the power grid is powered down for a long time before typhoon comes, so that the wind turbine is ensured to maintain an anti-typhoon mode operation during typhoon, the damage of typhoon to a fan is reduced, and the stability and reliability of the wind turbine in offshore and coastal areas are improved.
In order to achieve the above purpose, the utility model provides an anti-backup energy system of a wind turbine generator, which comprises a generator set and a backup power supply switching control cabinet, wherein the generator set comprises an engine, a generator and an outlet breaker, the backup power supply switching control cabinet comprises a generator step-up transformer and a backup power supply switching breaker, the engine drives the generator to be electrically connected with the generator step-up transformer through the outlet breaker, the generator step-up transformer is electrically connected with the backup power supply switching breaker, a main control system auxiliary transformer and a yaw system auxiliary transformer respectively, the backup power supply switching breaker is electrically connected with a main loop and a main transformer of the wind turbine generator, the main control system auxiliary transformer supplies power for a main control of a fan after being subjected to main control UPS, and the yaw system auxiliary transformer supplies power for a yaw system of the fan.
Preferably, the generator set further comprises a controller, wherein the controller receives a control signal of a main control system and a remote control signal of 5G or satellite communication, and controls the opening and closing of the generator, the opening circuit breaker and the backup power supply switching circuit breaker.
Preferably, the generator set further comprises a storage battery, the storage battery is electrically connected with the generator, and when the generator works, the generator can charge the storage battery, and the storage battery is electrically connected with the controller for charging.
Preferably, the engine is a diesel engine, and the generator is a diesel generator.
Preferably, the generator set and the standby power supply switching control cabinet are arranged on a tower foundation platform outside a tower or inside the tower.
The utility model has the beneficial effects that:
(1) The diesel generator set is used as a power supply of a backup energy system of the wind generator set, long-term stable power supply is provided for the wind generator set during typhoon, the wind generator set is ensured to maintain operation in an anti-typhoon mode, the influence of typhoon is reduced through active yaw, and the operation reliability of the wind generator set is improved;
(2) The diesel controller can be remotely controlled through 5G or satellite communication, and when the power grid is powered down for a long time when a typhoon early warning signal is received due to wind power plant establishment or power grid fault and other reasons, the diesel generator set is remotely controlled to start, and the wind generator set is restarted and is switched to an anti-station mode.
The features and advantages of the present utility model will be described in detail by way of example with reference to the accompanying drawings.
Drawings
Fig. 1 is a circuit topology diagram of a wind turbine generator anti-backup energy system based on a diesel generator.
FIG. 2 is a workflow diagram of a wind turbine anti-backup energy system based on a diesel generator.
In the figure: the diesel generator set 1, a backup power supply switching control cabinet 2, a diesel engine 11, a diesel generator 12, a storage battery 13, a controller 14, an oil tank 15, an outlet breaker 16, a diesel generator step-up transformer 21, a backup power supply switching breaker 22, a main control auxiliary transformer 3, a yaw auxiliary transformer 4, a main transformer 5 and a wind turbine set main loop 6.
Detailed Description
The present utility model will be further described in detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the detailed description and specific examples, while indicating the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model. In addition, in the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the present utility model.
The embodiment provides a wind turbine generator system anti-backup energy system, as shown in fig. 1, comprising a diesel generator set 1 and a backup power switching control cabinet 2, wherein the diesel generator set 1 comprises a diesel engine 11, a diesel generator 12, a storage battery 13, a controller 14, an oil tank 15 and an outlet breaker 16, the backup power switching control cabinet 2 comprises a diesel generator step-up transformer 21 and a backup power switching breaker 22,
The diesel engine 11 drives the diesel generator 12 to be electrically connected with the diesel generator step-up transformer 21 through the outlet breaker 16, the diesel generator step-up transformer 21 is respectively electrically connected with the backup power supply switching breaker 22, the main control auxiliary transformer 3 and the yaw auxiliary transformer 4,
The backup power supply switching breaker 22 is respectively electrically connected with the main loop 6 of the wind turbine generator and the main transformer 5, the main control auxiliary transformer 3 supplies power for the main control of the fan after passing through the main control UPS, and the yaw auxiliary transformer 4 supplies power for the yaw system of the fan.
The controller 14 receives a control signal of the main control system and a remote control signal of 5G or satellite communication through a CAN bus or a network cable, and controls opening and closing of the start/stop of the diesel engine 11, the outlet breaker 16 and the backup power switching breaker 22.
The controller 14 is powered by a separate storage battery 13, and the storage battery 13 is charged when the wind turbine generator works normally and the generator works, and the outlet breaker 16 and the backup power switching breaker 22 can be powered by the diesel generator 12, so that normal action in emergency is ensured. When the wind turbine works normally, the outlet breaker 16 of the diesel generator 12 is opened, the backup power supply switching breaker 22 is closed, and when the diesel generator 12 starts to perform emergency power supply, the outlet breaker 16 of the diesel generator 12 is closed, and the backup power supply switching breaker 22 is opened.
The backup energy system is connected to the wind turbine generator in a distributed mode, each fan is independently provided with a set of backup energy system, and the diesel generator set 1 and the backup power supply switching control cabinet 2 are arranged on a tower foundation platform outside a tower or inside the tower and meet the corrosion protection requirement conforming to the environment.
Fig. 2 is a working flow chart of a wind turbine generator anti-backup energy system based on diesel power generation. The working flow chart considers two main working scenes of the utility model, namely power failure of the power grid in typhoon weather and long-time power failure of the power grid before typhoon comes.
The first scene is that when the wind turbine generator is in a normal working state and the wind turbine main control receives a typhoon early warning signal, the running state of the wind turbine generator is automatically switched to an anti-typhoon yaw state; if the power grid is detected to be powered down, the master UPS temporarily supplies power to the fan master control, and the fan master control immediately sends a starting instruction to the controller 14; in order to ensure that the outlet breaker 16 and the backup power supply switching breaker 22 supply power, the controller 14 firstly controls the diesel engine 11 to start, then in order to prevent the diesel generator set 1 from being directly communicated with a power grid, the controller 14 firstly controls the backup power supply switching breaker 22 to be disconnected and then controls the outlet breaker 16 to be closed, at the moment, the main control system and the yaw system of the wind generator set are disconnected from the power grid, the diesel generator set 1 supplies power, and the wind generator set enters a backup energy anti-stage working state; after the power grid is powered on again or typhoon is finished, the fan main control sends a stopping instruction to the controller 14; after receiving the stopping instruction, the controller 14 firstly controls the outlet breaker 16 to be opened, then controls the backup power supply switching breaker 22 to be closed, finally controls the diesel engine 11 to stop, and the working of the backup energy system is finished.
The second scenario is that when the wind turbine generator is in a power failure state due to wind farm construction or grid fault and the like, wind farm management personnel receive a typhoon early warning signal. At this time, the power of the master UPS is exhausted, the fan master cannot control the controller 14, and a start command needs to be remotely sent to the controller 14 through 5G or satellite signals. The controller 14 is independently powered by the battery 13, and is therefore not affected by the power outage state of the unit. After receiving the start-up instruction, the controller 14 conforms the workflow of the anti-backup energy system to the first scenario.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, or alternatives falling within the spirit and principles of the utility model.
Claims (5)
1. An anti-backup energy system of a wind turbine generator, which is characterized in that: including generating set and reserve power switch control cabinet, generating set includes engine, generator and export circuit breaker, reserve power switch control cabinet includes generator step-up transformer and reserve power switch circuit breaker, the engine driven generator passes through export circuit breaker and is connected with generator step-up transformer electricity, generator step-up transformer is connected with reserve power switch circuit breaker, main control system auxiliary transformer, yaw system auxiliary transformer electricity respectively, reserve power switch circuit breaker is connected with wind turbine main circuit, main transformer electricity, main control system auxiliary transformer is fan master control power supply after the master control UPS, yaw system auxiliary transformer is fan yaw system power supply.
2. The wind turbine anti-backup energy system of claim 1, wherein: the generator set further comprises a controller, wherein the controller receives a control signal of the main control system and a remote control signal of 5G or satellite communication and controls the opening and closing of the generator, the opening circuit breaker and the switching circuit breaker of the backup power supply.
3. The wind turbine anti-backup energy system of claim 2, wherein: the generator set further comprises a storage battery, the storage battery is electrically connected with the generator, the generator can charge the storage battery when the generator works, and the storage battery is electrically connected with the controller for charging.
4. The wind turbine anti-backup energy system of claim 1, wherein: the engine is a diesel engine, and the generator is a diesel generator.
5. The anti-backup energy system of a wind turbine as claimed in any one of claims 1-4, wherein: the generator set and the backup power supply switching control cabinet are arranged on a tower foundation platform outside a tower or inside the tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322719844.9U CN220929572U (en) | 2023-10-11 | 2023-10-11 | Anti-backup energy system of wind turbine generator system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322719844.9U CN220929572U (en) | 2023-10-11 | 2023-10-11 | Anti-backup energy system of wind turbine generator system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220929572U true CN220929572U (en) | 2024-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322719844.9U Active CN220929572U (en) | 2023-10-11 | 2023-10-11 | Anti-backup energy system of wind turbine generator system |
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| Country | Link |
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| CN (1) | CN220929572U (en) |
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2023
- 2023-10-11 CN CN202322719844.9U patent/CN220929572U/en active Active
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