CN220586012U - Simple and stable charging system for standby power supply of flexible tower wind turbine generator - Google Patents
Simple and stable charging system for standby power supply of flexible tower wind turbine generator Download PDFInfo
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- CN220586012U CN220586012U CN202322257061.3U CN202322257061U CN220586012U CN 220586012 U CN220586012 U CN 220586012U CN 202322257061 U CN202322257061 U CN 202322257061U CN 220586012 U CN220586012 U CN 220586012U
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- pitch control
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- 238000001514 detection method Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 5
- 238000010248 power generation Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of wind power generation, and relates to a simple and stable charging system for a standby power supply of a soft tower wind turbine generator, which comprises the standby power supply and a variable pitch control driving system; the utility model provides a simple and stable charging system for a standby power supply of a flexible tower wind turbine, which is simple and stable, omits a charging unit special for charging, reduces electric elements and fault points.
Description
Technical Field
The utility model belongs to the technical field of wind power generation, and particularly relates to a simple and stable charging system for a standby power supply of a flexible tower wind turbine.
Background
The existing high-power wind generating set operates in an unattended state in the operation process, a local control system of the wind generating set automatically controls various operation conditions, the power generation power and the rotating speed of a wind wheel are automatically adjusted according to the wind speed, grid connection, grid disconnection and the like are automatically controlled, the wind generating set can be remotely monitored, various data of the wind generating set are collected through remote monitoring, and the wind generating set is manually operated.
The wind generating set has perfect protection functions, such as fault automatic alarm shutdown, and usually the protection functions of the wind generating set include overspeed, overload and fault of a generator, over-vibration, loss of a power grid or load, failure of shutdown during off-grid, pitch failure and the like. The protection link is a multi-stage safety chain interlock, has a logic AND function in the control process, and can realize a logic OR result in the aspect of reaching a control target. The protection link is designed by taking failure protection as a principle, namely when the control fails and the wind turbine generator cannot normally operate due to internal or external faults of the wind turbine generator, the system is safely protected. This includes that the pitch system must have a reliable shutdown protection function, in particular a power-off protection function in the power-off state of the power grid, and that this function must have a reliable backup power supply, which must have enough energy to safely feathere the blades in the power-off state.
The existing standby power supply charging device has the problems that the structure is complex, the number of electric components is relatively large, faults are easy to occur, for example, a variable pitch standby power supply system for wind power generation of a patent CN113904431A and a control method thereof are complex, and the number of electric components is relatively large.
Disclosure of Invention
The utility model provides a simple and stable charging system for a standby power supply of a flexible tower wind turbine, which can solve the problems pointed out in the background technology.
A simple and stable charging system for a standby power supply of a soft tower wind turbine comprises the standby power supply and a variable pitch control driving system; the variable pitch control driving system comprises a standby power supply, a voltage detection sensor and a 4-20mA current signal generator, wherein the relay is arranged between the variable pitch control driving system and the standby power supply, charging voltage is controlled through the relay, the voltage detection sensor and the 4-20mA current signal generator are arranged in parallel through the relay, the voltage detection sensor is used for detecting charging voltage, and the charging voltage is converted into a 4-20mA signal through the 4-20mA current signal generator and is transmitted to an analog quantity input AI point of the variable pitch control driving system.
Preferably, the relay is a solid state relay.
The beneficial effects are that: the utility model provides a simple and stable charging system for a standby power supply of a flexible tower wind turbine, which is simple and stable, omits an original charging unit special for charging, reduces electric elements and reduces fault points.
Drawings
Figure 1 is a schematic diagram of a system according to the present utility model,
reference numerals illustrate:
reference numerals in the drawings: a standby power supply 1; a pitch control drive system 2; a relay 3; a voltage detection sensor 4;4-20ma current signal generator 5.
Detailed Description
One embodiment of the present utility model will be described in detail below with reference to the attached drawings, but it should be understood that the scope of the present utility model is not limited by the embodiment.
Examples:
as shown in fig. 1, the simple and stable charging system for the standby power supply of the soft tower wind turbine provided by the embodiment of the utility model comprises a standby power supply 1 and a pitch control driving system 2; a relay 3 is arranged between the variable pitch control driving system 2 and the standby power supply 1, and the relay 3 is preferably a solid-state relay. The charging voltage is controlled by the relay 3 to charge the standby power supply 1, and the device further comprises a voltage detection sensor 4 and a 4-20mA current signal generator 5 which are arranged in parallel with the relay 3, wherein the voltage detection sensor 4 is used for detecting the charging voltage, and the charging voltage is converted into a 4-20mA signal by the 4-20mA current signal generator 5 and is transmitted to an analog input AI point of the pitch control driving system 2.
The working principle or the using method of the utility model is as follows: the voltage detection sensor 4 is used for detecting charging voltage, converting the charging voltage into a 4-20mA signal through the 4-20mA current signal generator 5, transmitting the signal to an analog input AI point of the pitch control driving system 2, comparing the analog input AI point with a set charging voltage, starting charging when the charging voltage is lower than the set charging voltage, and stopping charging when the charging voltage is higher than the set charging voltage.
The following disclosure is only a few specific embodiments of the present utility model, but the embodiments of the present utility model are not limited thereto, and any changes that may be contemplated by those skilled in the art should fall within the scope of the present utility model.
Claims (2)
1. A simple and stable charging system for a standby power supply of a soft tower wind turbine comprises a standby power supply (1) and a variable pitch control driving system (2); the method is characterized in that: the variable pitch control driving system is characterized in that a relay (3) is arranged between the variable pitch control driving system (2) and the standby power supply (1), charging voltage is controlled through the relay (3) to charge the standby power supply (1), the variable pitch control driving system further comprises a voltage detection sensor (4) and a 4-20mA current signal generator (5) which are arranged in parallel with the relay (3), the voltage detection sensor (4) is used for detecting charging voltage, and the charging voltage is converted into a 4-20mA signal through the 4-20mA current signal generator (5) and is transmitted to an analog quantity input AI point of the variable pitch control driving system (2).
2. The simple and stable charging system for the standby power supply of the soft tower wind turbine according to claim 1, wherein the simple and stable charging system is characterized in that: the relay (3) is a solid-state relay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322257061.3U CN220586012U (en) | 2023-08-22 | 2023-08-22 | Simple and stable charging system for standby power supply of flexible tower wind turbine generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322257061.3U CN220586012U (en) | 2023-08-22 | 2023-08-22 | Simple and stable charging system for standby power supply of flexible tower wind turbine generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220586012U true CN220586012U (en) | 2024-03-12 |
Family
ID=90120594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322257061.3U Active CN220586012U (en) | 2023-08-22 | 2023-08-22 | Simple and stable charging system for standby power supply of flexible tower wind turbine generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220586012U (en) |
-
2023
- 2023-08-22 CN CN202322257061.3U patent/CN220586012U/en active Active
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