Integrated mounting structure of fan variable-pitch driver

Abstract

The utility model discloses an integrated mounting structure of a fan variable-pitch driver, which is characterized in that a variable-pitch driver mounting frame body is fixedly mounted on a variable-pitch cabinet, an integrated variable-pitch driver is mounted on the variable-pitch driver mounting frame body, and the integrated variable-pitch driver comprises a first control module and a second control module; the input end of the first control module is connected with a bus power supply, and the output end is connected with the motor drive controller; a power supply module is arranged on a connecting line between the bus power supply and the first control module, and the power supply module is connected to the second control module; the integrated variable-pitch driver is further provided with a plurality of wiring terminal units and is electrically connected with related electrical elements of a fan variable-pitch system through the wiring terminal units. According to the utility model, the electrical loop connection is simplified, the fault points of the variable pitch system are reduced, and the safety of the wind generating set is improved.

Description

Technical Field

[0001] This utility model belongs to the field of wind turbine generator sets, specifically relating to an integrated installation structure for a wind turbine pitch drive. Background Technology

[0002] In existing technologies, upgrading the pitch system of wind turbine generators involves partially replacing and upgrading aging components or some electrical circuits without changing the original pitch system. The scope of the upgrade is limited to the problematic components or electrical circuits. Although this temporarily solves some frequent faults in the pitch system, it does not improve the performance of the wind turbine pitch system. Moreover, since the upgrade only starts from a local area and does not take the overall situation into consideration, new problems may be introduced after the upgrade.

[0003] Therefore, the applicant seeks technical solutions to address the above-mentioned technical problems. Summary of the Invention

[0004] In view of this, the purpose of this utility model is to propose an integrated installation structure for a wind turbine pitch driver, which simplifies the electrical circuit connection, reduces the failure points of the pitch system, and improves the safety of the wind turbine generator set.

[0005] Therefore, the technical solution adopted by this utility model is as follows:

[0006] An integrated mounting structure for a wind turbine pitch driver includes a pitch driver mounting frame fixedly mounted on a pitch control cabinet. The pitch driver mounting frame is equipped with an integrated pitch driver, wherein the integrated pitch driver includes a first control module and a second control module.

[0007] The input terminal of the first control module is connected to the bus power supply, and its output terminal is connected to the motor drive control.

[0008] A power module is provided on the connection line between the bus power supply and the first control module, and the power module is connected to the second control module.

[0009] The integrated pitch drive is also equipped with several terminal block units, which are electrically connected to the relevant electrical components of the wind turbine pitch system through each terminal block unit.

[0010] Preferably, the integrated pitch driver further includes a charger, wherein the charger is disposed on the connection line between the bus power supply and the first control module, and the charger is electrically connected to the backup power supply of the wind turbine pitch system for charging the backup power supply.

[0011] Preferably, the power module provides 24V power to the second control module.

[0012] Preferably, the power module provides 24V power to the electrical components of the wind turbine pitch system.

[0013] Preferably, the terminal block unit includes a bus power supply terminal block, a power module terminal block, and a motor terminal block.

[0014] Preferably, the terminal block unit further includes a backup power supply terminal block, a motor brake circuit terminal block, and several communication signal terminals.

[0015] Preferably, the motor is communicatively connected to the first control module via an encoder.

[0016] Preferably, the connection line between the bus power supply and the first control module is equipped with a filter, an AC monitor, a capacitor bank, a rectifier, and a DC monitor.

[0017] Preferably, the pitch drive mounting bracket is fixedly mounted on the pitch cabinet using fasteners.

[0018] Preferably, the fastener is a standard fastener.

[0019] This utility model proposes an integrated installation structure for a wind turbine pitch driver. The integrated pitch driver is fixedly installed on the pitch cabinet by a pitch driver mounting frame. The integrated pitch driver is equipped with a first control module and a second control module. The integrated pitch driver achieves electrical connection with the relevant electrical components of the wind turbine pitch system through various terminal block units. The electrical principle is simple, eliminating the need for electrical structure design with various electrical control circuits as in the prior art. This simplifies the electrical circuit connection, reduces the number of failure points in the pitch system, and improves the safety of the wind turbine generator set. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the integrated installation structure of the wind turbine pitch drive according to a specific embodiment of this application;

[0021] Figure 2 This is a schematic diagram of the electrical structure of the integrated pitch drive according to a specific embodiment of this application. Detailed Implementation

[0022] This utility model discloses an integrated installation structure for a wind turbine pitch driver. A pitch driver mounting frame is fixedly installed on a pitch control cabinet, and an integrated pitch driver is mounted on the mounting frame. The integrated pitch driver includes a first control module and a second control module. The input terminal of the first control module is connected to a bus power supply, and its output terminal is connected to a motor drive control. A power supply module is provided on the connection line between the bus power supply and the first control module, and the power supply module is connected to the second control module. The integrated pitch driver also has several terminal block units, which are electrically connected to relevant electrical components of the wind turbine pitch system.

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Please refer to the above. Figure 1 and Figure 2 As shown, an integrated mounting structure for a wind turbine pitch drive is provided. A pitch drive mounting frame 3 is fixedly mounted on a pitch cabinet 1. An integrated pitch drive is mounted on the pitch drive mounting frame 3. Preferably, in this embodiment, the pitch drive mounting frame 3 is fixedly mounted on the pitch cabinet by fasteners 2. Preferably, the fasteners 2 are standard fasteners, such as screws.

[0025] In this embodiment, the integrated pitch driver includes a control unit 6, which specifically includes a first control module 6a (specifically including an IGBT device) and a second control module 6b; the input terminal of the first control module 6a is connected to the bus power supply (not shown in the figure), and its output terminal is connected to the motor (not shown in the figure) drive control; preferably, in this embodiment, the motor is communicatively connected to the first control module 6a through an encoder.

[0026] In this embodiment, a power module 7 is provided on the connection line between the bus power supply and the first control module 6a, and the power module 7 is connected to the second control module 6b; the integrated pitch driver is also provided with several terminal block units 4, which are electrically connected to the relevant electrical components of the wind turbine pitch system through each terminal block unit 4.

[0027] Preferably, in this embodiment, the integrated pitch driver further includes a charger 5, wherein the charger 5 is disposed on the connection line between the bus power supply and the first control module 6a, and the charger 5 is electrically connected to the backup power supply (not shown) of the wind turbine pitch system for charging the backup power supply.

[0028] It should be noted that the functions of the first control module 6a and the second control module 6b involved in the embodiments of this application mainly include: communication function between the pitch PLC and the driver, motor control algorithm, driver state switching and fault handling, etc.

[0029] Preferably, in this embodiment, the power module 7 provides 24V power to the second control module 6b and the electrical components of the wind turbine pitch system respectively; in order to achieve a safe electrical layout, in this embodiment, the first control module 6a and the second control module 6b are arranged in a strong and weak current isolation distribution within the pitch cabinet 1.

[0030] Preferably, in this embodiment, the terminal block unit includes a bus power supply terminal block X1:mains (the first control module 6a is electrically connected to the bus power supply via the bus power supply terminal block X1:mains), a power module terminal block X7:24 V DC (related electrical components of the wind turbine pitch system are electrically connected to the power module via the power module terminal block X7:24 V DC), a motor terminal block X1:motor (the first control module 6a is electrically connected to the motor via the motor terminal block X1:motor), a backup power supply terminal block X1:Safe energy (the charger 5 is electrically connected to the backup power supply via the backup power supply terminal block X1:Safe energy), a motor brake circuit terminal block X2:Motor brake (the second control module 6b is electrically connected to the motor brake circuit via the motor brake circuit terminal block X2:Motor brake), and several communication signal terminals. Figure 2 Shown: X9: Digital inputs, RFE, RUN, LS1, LS2, DI 1-DI4; X9: Digital inputs DI 5-DI 12;

[0031] Preferably, in this embodiment, the connection line between the bus power supply and the first control module 6a is respectively equipped with an EMC filter, an AC monitoring device, a capacitor bank, a rectifier, and a DC-link monitoring device. Specifically, these can be achieved through wiring terminals (such as...). Figure 2 As shown: X8:SCI 1 & 2, X8:SCR 1 & 2, RO) achieve electrical connection.

[0032] This embodiment proposes an integrated installation structure for a wind turbine pitch driver. The integrated pitch driver is fixedly installed on the pitch cabinet 1 via the pitch driver mounting frame 3. The integrated pitch driver is equipped with a first control module 6a and a second control module 6b. The integrated pitch driver achieves electrical connection with the relevant electrical components of the wind turbine pitch system through various terminal block units. The electrical principle is simple, eliminating the need for electrical structure designs that use various electrical control circuits as in the prior art. This simplifies the electrical circuit connections, reduces the number of failure points in the pitch system, and improves the safety of the wind turbine generator set.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An integrated mounting structure for a wind turbine pitch drive, characterized in that, The system includes a pitch drive mounting frame that is fixedly installed on a pitch control cabinet. The pitch drive mounting frame is equipped with an integrated pitch drive, wherein the integrated pitch drive includes a first control module and a second control module. The input terminal of the first control module is connected to the bus power supply, and its output terminal is connected to the motor drive control. A power module is provided on the connection line between the bus power supply and the first control module, and the power module is connected to the second control module. The integrated pitch drive is also equipped with several terminal block units, which are electrically connected to the relevant electrical components of the wind turbine pitch system through each terminal block unit.

2. The integrated mounting structure of the wind turbine pitch driver according to claim 1, characterized in that, The integrated pitch driver also includes a charger, wherein the charger is disposed on the connection line between the bus power supply and the first control module, and the charger is electrically connected to the backup power supply of the wind turbine pitch system for charging the backup power supply.

3. The integrated mounting structure of the wind turbine pitch drive according to claim 1, characterized in that, The power module provides 24V power to the second control module.

4. The integrated mounting structure of the wind turbine pitch drive according to claim 3, characterized in that, The power module provides 24V power to the electrical components of the wind turbine pitch system.

5. The integrated mounting structure of the wind turbine pitch drive according to claim 1, characterized in that, The terminal block unit includes bus power supply terminals, power module terminals, and motor terminals.

6. The integrated mounting structure of the wind turbine pitch driver according to claim 5, characterized in that, The terminal block unit also includes a backup power supply terminal block, a motor brake circuit terminal block, and several communication signal terminals.

7. The integrated mounting structure of the wind turbine pitch drive according to claim 1, characterized in that, The motor is connected to the first control module via an encoder.

8. The integrated mounting structure of the wind turbine pitch drive according to claim 1, characterized in that, The connection line between the bus power supply and the first control module is equipped with a filter, an AC monitor, a capacitor bank, a rectifier, and a DC monitor.

9. The integrated mounting structure of the wind turbine pitch driver according to claim 1, characterized in that, The pitch driver mounting bracket is fixedly mounted on the pitch cabinet using fasteners.

10. The integrated mounting structure of the wind turbine pitch driver according to claim 9, characterized in that, The fasteners used are standard fasteners.

Images