JP2015172342A - state monitoring system and state monitoring method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a system for reliably monitoring a state of equipment installed in a wind power generation device at a low cost.SOLUTION: The wind power generation device 100 includes vibration sensors 90A to 90F for detecting a state of the equipment in the wind power generation device 100. Respective detected outputs of the vibration sensors 90A to 90F are transmitted to an information processor 200. The information processor 200 is disposed in a post 40 of the wind power generation device 100. The information processor 200 transmits the detected outputs to a management server 300 via a network 900.

Description

  The present disclosure relates to system status monitoring, and more particularly, to status monitoring of equipment provided in a wind turbine generator.

  Conventionally, various techniques for managing the operating state of a wind turbine generator at a remote location have been proposed. For example, Japanese Patent Laid-Open No. 2002-349415 (Patent Document 1) discloses a local area network for facilitating monitoring of the operating state of a wind turbine generator in a remote place. In the local area network, the wind power generator, the server, and the monitoring device are connected by an optical fiber.

  In the wind power generator, when the device to be monitored is accommodated in the nacelle, the data collection device in the nacelle in which the detection data of the sensor is stored and the server may not be connected by an optical fiber or the like. In such a case, the stored data may be transmitted from the apparatus to the server using a mobile phone line.

JP 2002-349415 A

  As described above, when a data collection device and a mobile phone line are used, a cost is required for installing the data collection device, and a cost is also required for using the mobile phone line. Furthermore, transmission using a mobile phone line may be affected by the state of radio waves on the line, and data transmission to the server may be delayed.

  The present disclosure has been devised in view of such circumstances, and an object thereof is to provide a system for reliably monitoring the state of equipment provided in a wind turbine generator at low cost.

  When a certain situation is followed, the state monitoring system for monitoring the state of the apparatus provided in the wind power generator is provided. The state monitoring system is configured to transmit a management device for managing information related to a device, an information processing device provided in the wind turbine generator, a sensor provided in the device, and a detection output of the sensor to the information processing device. A first communication circuit. The information processing apparatus includes a second communication circuit for transmitting the detection output transmitted from the first communication circuit to the management apparatus via the network.

  Preferably, the first communication circuit transmits the detection output of the sensor to the information processing apparatus by a short-range wireless communication method.

  Preferably, the wind turbine generator further includes a nacelle that accommodates the device and a support column that supports the nacelle. The sensor is accommodated in the nacelle, and the information processing apparatus is accommodated in the support column.

  According to another aspect, a method for monitoring the status of equipment provided in a wind turbine generator in a status monitoring system is provided. The state monitoring system includes a management device for managing information related to a device, a sensor provided in the device, an information processing device provided in the wind power generator, and a first device for transmitting the detection output of the sensor to the information processing device. 1 communication circuit. The first communication circuit transmits the detection output of the sensor to the information processing apparatus, and the information processing apparatus transmits the detection output transmitted from the first communication circuit to the management apparatus via the network.

  According to this indication, a sensor is provided in equipment provided in a wind power generator. The detection output of the sensor is transmitted to an information processing device provided in the wind turbine generator. The information processing apparatus transmits the detection output of the sensor to the management apparatus via the network.

  Thereby, the state monitoring system does not require a special device for accumulating the detection output of the sensor. Further, the detection output of the sensor is transmitted from the information processing apparatus to the management apparatus using communication via a network. For this reason, the state monitoring system does not need to use a telephone line. Therefore, the state monitoring system can reduce the cost, and can reliably transmit the detection output of the sensor to the management device.

It is a figure which shows an example of the outline | summary of a structure of a state monitoring system. It is a figure which shows an example of the hardware constitutions of a vibration sensor. It is a figure which shows an example of the hardware constitutions of information processing apparatus. It is a figure which shows an example of the hardware constitutions of a management server. It is a figure which shows the modification of the outline | summary of a structure of a state monitoring system.

  Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. In the following description, the same parts are denoted by the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.

[Overview of the status monitoring system]
First, an outline of a configuration of an embodiment of the state monitoring system according to the present disclosure will be described. FIG. 1 is a diagram illustrating an example of an outline of a configuration of a state monitoring system.

  As shown in FIG. 1, the state monitoring system includes a wind power generator 100, an information processing device 200, and a management server 300. The information processing apparatus 200 acquires a detection output indicating the state of the device in the wind turbine generator 100 and transmits it to the management server 300. The management server 300 manages the detection output. For example, in the management server 300, the administrator compares the detection output with a predetermined threshold value, and manages data for notifying a predetermined terminal of the above based on the comparison result.

(Configuration of the wind turbine generator 100)
The wind turbine generator 100 mainly includes a blade 20, a nacelle 30 (housing), and a support column 40. Inside the nacelle 30, devices of the wind power generator 100 (the main shaft 50, the speed increaser 60, the generator 70 and the main bearing 80) and vibration sensors 90 </ b> A to 90 </ b> F are arranged. The vibration sensor 90 </ b> A detects the vibration of the main bearing 80. The vibration sensors 90B, 90C, 90D detect the vibration of the speed increaser 60. The vibration sensors 90E and 90F detect the vibration of the generator 70. In the present specification, when a configuration common to the vibration sensors 90A to 90F is described, the vibration sensors 90A to 90F are collectively referred to as “vibration sensors 90”.

  The nacelle 30 is disposed above (that is, at a high place) the support column 40 installed on the ground (not shown). The nacelle 30 can rotate about the axis of the support column 40. The blade 20 is connected to one end of a main shaft 50 protruding outside the nacelle 30. The main shaft 50 is disposed in the nacelle 30. The main shaft 50 can be rotated by the wind force received by the blade 20.

  The step-up gear 60 is connected to the main shaft 50 at the other end opposite to the one end to which the blade 20 is connected. The speed increaser 60 increases the rotation of the main shaft 50 and outputs the increased rotation of the main shaft 50 to the generator 70 via the output shaft 61. The speed increaser 60 is constituted by a gear speed increasing mechanism including, for example, a planetary gear, an intermediate shaft, a high speed shaft, or the like.

  The generator 70 is connected to the speed increaser 60 on the side opposite to the main bearing 80. The generator 70 is connected to the speed increaser 60 via the output shaft 61, and generates power by the rotation output from the speed increaser 60. The generator 70 is, for example, an induction generator.

  The main bearing 80 is disposed adjacent to the speed increaser 60 and supports the main shaft 50 so as to be rotatable around the axis. The main bearing 80 is a rolling bearing such as a self-aligning roller bearing, a tapered roller bearing, a cylindrical roller bearing, or a ball bearing. These bearings may be single-row or double-row.

  Although the rated output of the wind power generator 100 is not particularly limited, for example, it is larger than 500 kW.

  In the wind turbine generator 100, first, the blade 20 rotates by receiving wind force, so that the main shaft 50 connected to the blade 20 rotates while being supported by the main bearing 80. The rotation of the main shaft 50 is transmitted to the speed increaser 60 to be increased in speed and converted into rotation of the output shaft 61. The rotation of the output shaft 61 is transmitted to the generator 70, and an electromotive force is generated in the generator 70 by electromagnetic induction.

(Configuration of status monitoring system)
Next, the overall configuration of the state monitoring system will be described. The state monitoring system is a system for monitoring damage and deterioration states of the devices (the main shaft 50, the speed increaser 60, the generator 70, and the main bearing 80) of the wind turbine generator 100.

  First, in the state monitoring system, the information processing apparatus 200 acquires detection outputs of the vibration sensors 90A to 90F. More specifically, the information processing apparatus 200 is disposed in the support column 40. And each of vibration sensor 90A-90F transmits the detection output of each sensor to the information processing apparatus 200 regularly, regularly (every fixed time), or when the preset conditions are satisfied. To do. The mode of transmission may be in accordance with a short-range wireless communication scheme such as WiFi (Wireless Fidelity) or may be wired. In the present specification, as an example of the transmission, transmission according to the short-range wireless communication method is adopted and described.

  The information processing apparatus 200 transmits the detection output to the management server 300 via the network 900. The network 900 is a public line such as the Internet, for example. The information processing apparatus 200 is connected to the network 900 via, for example, a LAN (Local Area Network).

  The management server 300 monitors the detection output. Specifically, for example, a control device (a CPU (Central Processing Unit) 31 described later) in the management server 300 displays the detection output and / or transmits it to a predetermined terminal or the like. The control device compares the detection output with a preset threshold value, displays the result of the comparison, and / or transmits the result to a predetermined terminal or the like.

[Hardware configuration]
Next, the hardware configuration of each component of the state monitoring system will be described.

(Vibration sensor 90)
FIG. 2 is a diagram illustrating an example of a hardware configuration of the vibration sensor 90. As shown in FIG. 2, the vibration sensor 90 mainly includes a CPU (Central Processing Unit) 91 for executing various processes, a memory 92 for storing programs executed by the CPU 91, data, and the like. A wireless communication unit 93 for communicating with an external device such as the information processing apparatus 200; and a data acquisition unit 95 configured by a member for acquiring data related to vibration of the device to which the vibration sensor 90 is attached. . The wireless communication unit 93 is configured by a WiFi module capable of communicating using, for example, the WiFi system.

(Information processing apparatus 200)
FIG. 3 is a diagram illustrating an example of a hardware configuration of the information processing apparatus 200.

  As shown in FIG. 3, the information processing apparatus 200 includes a CPU 21, a memory 22, an input device 23, a display 24, a wireless communication unit 25, and a communication interface (I / F) 26 as main components. Media I / F 27.

  The CPU 21 controls the operation of each unit of the information processing apparatus 200 by reading and executing the program stored in the memory 22. The memory 22 is realized by a RAM (Random Access Memory), a ROM (Read-Only Memory), a flash memory, or the like.

  The input device 23 is configured by, for example, a mouse or a keyboard used in a general-purpose computer. The user can input information to the information processing apparatus 200 via the input device 23. The display 24 is configured by a device that can display information, such as a liquid crystal display device or a plasma display. The display 24 can display various information including, for example, a calculation result by the CPU 21 and data input to the information processing apparatus 200.

  The wireless communication unit 25 transmits and receives signals for wireless communication in accordance with a short-range wireless communication method such as WiFi. Thereby, the information processing apparatus 200 receives the detection output of the vibration sensor 90 transmitted from the vibration sensor 90.

  The communication I / F 26 is a communication method for communication via a network, and is a communication interface for exchanging various data with other communication devices including the management server 300. The communication I / F 26 is realized by, for example, an adapter or a connector.

  The media I / F 27 reads information recorded on a recording medium 200X that is detachable from the information processing apparatus 200. Further, the media I / F 27 may write information on the recording medium 200X. As the recording medium 200X, various recording media such as a USB (Universal Serial Bus) memory, a CD-ROM, a flexible disk, and a flash memory can be employed. The CPU 21 can execute a program stored in the recording medium 200X.

(Management server 300)
FIG. 4 is a diagram illustrating an example of a hardware configuration of the management server 300.

  As shown in FIG. 4, the management server 300 includes a CPU 31, a memory 32, an input device 33, a display 34, a communication interface (I / F) 36, and a media I / F 37 as main components. Including.

  The CPU 31 controls the operation of each unit of the management server 300 by reading and executing the program stored in the memory 32. The memory 32 is realized by a RAM, a ROM, a flash memory, or the like.

  The input device 33 is configured by, for example, a mouse or a keyboard used in a general-purpose computer. The user can input information to the management server 300 via the input device 33. The display 34 is configured by a device that can display information, such as a liquid crystal display device or a plasma display. The display 34 can display various information including, for example, a calculation result by the CPU 31 and data input to the management server 300.

  The wireless communication unit 25 transmits and receives signals for wireless communication in accordance with a short-range wireless communication method such as WiFi. Thereby, the management server 300 receives the detection output of the vibration sensor 90 transmitted from the vibration sensor 90.

  The communication I / F 36 is a communication method for communication via a network, and is a communication interface for exchanging various data with other communication devices including the information processing apparatus 200. The communication I / F 36 is realized by, for example, an adapter or a connector.

  The media I / F 37 reads information recorded on a recording medium 300X that can be attached to and detached from the management server 300. Further, the media I / F 37 may write information on the recording medium 300X. As the recording medium 300X, for example, various recording media such as a USB memory, a CD-ROM, a flexible disk, and a flash memory can be adopted. The CPU 31 can execute a program stored in the recording medium 300X.

[Summary of embodiment]
In the embodiment of the present disclosure described above, the state monitoring system includes a management device (management server 300) for managing information on devices, and an information processing device (information processing device 200) provided in the wind turbine generator. And sensors (parts other than the radio communication unit 93 of the vibration sensors 90A to 90F) provided in the device. The vibration sensor 90 includes a first communication circuit (wireless communication unit 93) for transmitting the detection output of the sensor to the information processing apparatus.

  In the present disclosure, each of the vibration sensors 90 </ b> A to 90 </ b> F is described to include the wireless communication unit 93. Note that the wireless communication unit 93 may be provided separately from each of the vibration sensors 90A to 90F. Thereby, the existing wind power generator 100 can be applied to the state monitoring system of the present disclosure by connecting the wireless communication unit 93 to the vibration sensors 90A to 90F having no communication function.

  In the embodiment of the present disclosure, the information processing apparatus (information processing apparatus 200) transmits the detection output transmitted from the first communication circuit to the management apparatus (management server 300) via the network. The second communication circuit (communication I / F 26).

  Transmission of detection outputs of the vibration sensors 90A to 90F from the vibration sensors 90A to 90F to the information processing apparatus 200 is preferably realized by a short-range wireless communication method such as a WiFi method. Thereby, the operation | work for connecting each of the vibration sensors 90A-90F in the nacelle 30 located in a comparatively high place with the information processing apparatus 200 by wire, and the operation | work for adjusting the said connection may be abbreviate | omitted. However, the present disclosure does not exclude wired communication between the vibration sensor 90 and the information processing apparatus 200.

  Further, in the embodiment in the present disclosure, the information processing apparatus 200 is preferably disposed in the support column 40. Thereby, it is possible to install the information processing apparatus 200 in a more stable place than in the case where it is provided in the nacelle 30 provided at a relatively high place. However, the installation location of the information processing apparatus 200 is not limited to the inside of the support column 40 as long as it can communicate with the vibration sensor 90 using the short-range wireless communication method.

  In the embodiment of the present disclosure, the information processing apparatus 200 is provided for each wind power generator 100. In the state monitoring system, a plurality of wind turbine generators 100 are provided adjacent to each other, and a vibration sensor 90 in a certain wind turbine generator 100 is provided in a column 40 of another wind turbine generator 100 adjacent thereto. It may be possible to communicate with the information processing apparatus 200 using the short-range wireless communication method. In such a case, for example, as illustrated in FIG. 5, the information processing apparatus 200 can receive detection outputs from the vibration sensors 90 of the plurality of wind power generation apparatuses 100 and transmit them to the management server 300.

  Examples of timing for transmitting the detection output from the information processing apparatus 200 to the management server 300 are listed below. However, these are examples, and the transmission timing is not limited to these.

1) Time set in advance in the information processing apparatus 200 2) When transmission is requested from the management server 300 The state monitoring system shown in FIG. 5 includes the wind power generator 100A and the wind power generator adjacent to the wind power generator 100A. Apparatus 100B. In the state monitoring system shown in FIG. 5, the information processing device 200 provided in the support column 40 of the wind power generator 100 </ b> A includes the detection output transmitted from the vibration sensor 90 in the nacelle 30 of the wind power generator 100 </ b> A, the wind power The detection output transmitted from the vibration sensor 90 in the nacelle 30 of the power generation device 100B is received. In addition, the information processing apparatus 20 provided in the support | pillar 40 of 100 A of wind power generators is arrange | positioned in the position which can receive the signal transmitted from the vibration sensor 90 in the nacelle 30 of the wind power generator 100B. That is, in the example shown in FIG. 5, the distance between the wind power generator 100A and the wind power generator 100B is the signal transmitted from the vibration sensor 90 in the nacelle 30 of the wind power generator 100B. It is supposed to be receivable.

  In the present disclosure described above, a vibration sensor is employed as an example of a sensor for detecting the state of a device provided in the wind turbine generator 100. Note that the type of the sensor is not limited to the vibration sensor. All types of sensors can be applied to the state monitoring system of the present disclosure.

  It should be thought that embodiment disclosed this time and its modification are illustrations in all the points, and are not restrictive. The scope of the present disclosure is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  20 blade, 25, 93 wireless communication unit, 26, 36 communication I / F, 30 nacelle, 40 strut, 50 spindle, 60 speed increaser, 61 output shaft, 70 generator, 80 main bearing, 90, 90A-90F vibration Sensor, 95 data acquisition unit, 100 wind power generator, 200 information processing device, 200X, 300X recording medium, 300 management server, 900 network.

Claims (4)

A state monitoring system for monitoring the state of equipment provided in a wind turbine generator,
A management device for managing information about the device;
An information processing device provided in the wind turbine generator;
A sensor provided in the device;
A first communication circuit for transmitting the detection output of the sensor to the information processing device;
The information processing apparatus includes a second communication circuit for transmitting the detection output transmitted from the first communication circuit to the management apparatus via a network.   The information monitoring system according to claim 1, wherein the first communication circuit transmits a detection output of the sensor to the second communication circuit by a short-range wireless communication method. A nacelle containing the device;
And further comprising a column supporting the nacelle,
The sensor is housed in the nacelle;
The state monitoring system according to claim 1 or 2, wherein the information processing apparatus is accommodated in the support column. A method for monitoring the status of equipment provided in a wind turbine generator in a status monitoring system,
The state monitoring system includes a management device for managing information related to the device, a sensor provided in the device, an information processing device provided in the wind power generator, and a detection output of the sensor as the information processing device. A first communication circuit for transmitting to
The first communication circuit transmits a detection output of the sensor to the information processing apparatus,
The status monitoring method, wherein the information processing apparatus transmits a detection output transmitted from the first communication circuit to the management apparatus via a network.

Images