Wind power plant wireless monitoring system based on 5G

Abstract

The utility model discloses a 5G-based wireless monitoring system for a wind power plant. A temperature transmitter, a multifunctional monitoring instrument, an electric power signal transmitter and a vibration signal transmitter of the system are in communication connection with a communication management machine; the fan PLC controller and the box transformer measurement and control device are both connected with the 5G industrial DTU device through 5G wireless communication, the 5G industrial DTU device is connected with the 5G private network device, and the 5G private network device, the communication management machine and the electric energy quality monitoring device are in communication connection with the industrial POE switch; and the industrial POE switch is in communication connection with the remote monitoring server. According to the utility model, the wind power plant monitoring system is formed based on the industrial POE switch, the 5G industrial DTU equipment and other high-performance power monitoring equipment and network equipment, so that the operation parameters of the wind power plant are monitored, and the convenient and efficient monitoring of the operation parameters of the wind power plant is realized by utilizing the characteristics of high speed and low delay of the 5G network.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation, and in particular to a 5G-based wireless monitoring system for wind farms. Background Art

[0002] As one of the clean energy sources, the installed capacity of wind farms has grown rapidly in recent years. In the wind farm power generation system, the top cabin of each generator set is equipped with a turbine generator, and the front end is an adjustable blade. The system can adjust the inclination angle of the blade according to different wind conditions. The general speed of the blade is 10 to 15 rpm, and the speed can be adjusted to 1500 rpm through the gearbox to drive the generator. An industrial PLC is also configured in the cabin for control and related data collection. The PLC collects relevant data such as wind speed, wind direction, speed, active power and reactive power, and controls the generator in real time through the collected data. Onshore, a box transformer is also set at the bottom of the wind turbine tower to be responsible for boosting and converging. According to the power and geographical conditions, multiple wind turbines are boosted once and then connected in parallel to the booster substation. The voltage is further increased by the booster transformer and then merged into the large power grid to transmit electricity to the grid. The electrical wiring diagram of the wind farm is as follows Figure 1 The voltage generated by the wind turbine is generally 0.69kV, which is boosted to 10kV or 35kV by the box transformer. After multiple units are connected in parallel, they are connected to the low-voltage bus of the booster substation, and then boosted to 110kV or higher voltage level by the main transformer before being connected to the grid.

[0003] There are many operating parameters that determine the power generation of wind farms, and the wind power system has high requirements for real-time monitoring of operating parameters. Real-time monitoring affects power generation efficiency and energy loss. Therefore, it is urgent to design a 5G-based wind farm wireless monitoring system. Utility Model Content

[0004] In order to solve the problem that there are many operating parameters of wind farm power generation in the prior art, and the wind power system has high requirements for real-time monitoring of operating parameters, and real-time monitoring affects power generation efficiency and energy consumption, the embodiment of the utility model provides a 5G-based wind farm wireless monitoring system. The technical solution is as follows:

[0005] A 5G-based wind farm wireless monitoring system, including a remote monitoring server, a 5G industrial DTU device, an industrial POE switch, a wind turbine PLC controller, a box transformer measurement and control device, an optical fiber ring network, a communication management machine, a power quality monitoring device, a temperature transmitter, a multi-function monitoring instrument, a power signal transmitter, and a vibration signal transmitter;

[0006] The temperature transmitter, multifunctional monitoring instrument, power signal transmitter, and vibration signal transmitter are communicatively connected with the communication management machine;

[0007] The fan PLC controller and the box transformer measurement and control device are connected to the 5G industrial DTU device through 5G wireless communication. The 5G industrial DTU device is connected to the 5G private network device. The 5G private network device, the communication management machine, and the power quality monitoring device are connected to the industrial POE switch through communication.

[0008] The industrial POE switch is communicatively connected with the remote monitoring server.

[0009] Optionally, the wind turbine PLC controller is connected to a wind speed sensor, a wind direction sensor, a wind turbine rotation speed sensor and a power collector.

[0010] Optionally, the model of the box-type transformer measurement and control device is AM6-PWC.

[0011] Optionally, the multifunctional monitoring instrument model is APM520.

[0012] Optionally, the 5G industrial DTU device model is H7910.

[0013] Optionally, the power signal transmitter includes a voltage signal transmitter and a current signal transmitter.

[0014] The technical solution provided by the embodiment of the utility model has at least the following beneficial effects:

[0015] The above solution is based on an industrial POE switch, 5G industrial DTU equipment, and other high-performance power monitoring equipment and network equipment to form a wind farm monitoring system to monitor the operating parameters of the wind farm. It uses the high speed and low latency characteristics of the 5G network to achieve convenient and efficient monitoring of the operating parameters of the wind farm. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a schematic diagram of the electrical wiring of a wind farm;

[0018] Figure 2 This is a principle block diagram of a 5G-based wind farm wireless monitoring system according to an embodiment of the utility model;

[0019] Figure 3 The figure is a monitoring schematic diagram of the box transformer measurement and control device according to an embodiment of the utility model in a wind farm. DETAILED DESCRIPTION

[0020] The technical solution of the present utility model is described below in conjunction with the accompanying drawings.

[0021] The described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 2 As shown, the embodiment of the utility model is a 5G-based wireless monitoring system for wind farms, including a remote monitoring server 1, a 5G industrial DTU device 2, an industrial POE switch 3, a wind turbine PLC controller 4, a box transformer measurement and control device 5, an optical fiber ring network 6, a communication management machine 7, a power quality monitoring device 8, a temperature transmitter 9, a multi-function monitoring instrument 10, a power signal transmitter 11, and a vibration signal transmitter 12.

[0023] The temperature transmitter 9, the multifunctional monitoring instrument 10, the power signal transmitter 11, and the vibration signal transmitter 12 are communicatively connected with the communication management machine 7;

[0024] The fan PLC controller 4 and the box transformer measurement and control device 5 are connected to the 5G industrial DTU device 2 through 5G wireless communication. The 5G industrial DTU device 2 is connected to the 5G private network device 6. The 5G private network device 6, the communication management machine 7, and the power quality monitoring device 8 are connected to the industrial POE switch 3 through communication.

[0025] The industrial POE switch 3 is communicatively connected to the remote monitoring server 1 .

[0026] The wind turbine PLC controller 4 is connected with the wind speed sensor, wind direction sensor, wind turbine speed sensor and power collector. The PLC collects relevant data such as wind speed, wind direction, speed, active power and reactive power, and controls the wind turbine in real time through the collected data.

[0027] The model of the box transformer measurement and control device 5 is AM6-PWC. The distance between each wind turbine in the wind farm is hundreds of meters, which is far away from the centralized control room; the step-up transformers are all in the open field, the natural environment is relatively harsh, and it is not convenient for manual inspection, which makes the box transformer measurement and control a difficult point in the monitoring of the wind farm. The box transformer measurement and control device is the core part of the wind farm monitoring system, and realizes the intelligent management of the box transformer. The box transformer measurement and control device can protect and remotely monitor the wind power box transformer, realize the functions of "remote signaling, remote measurement, remote control, and remote adjustment", and greatly improve the operation and maintenance efficiency of the wind farm. The AM6-PWC box transformer protection and measurement and control device is an integrated device that integrates protection, measurement and control, and communication for the different requirements of wind power and photovoltaic step-up transformers.

[0028] In addition, the multifunctional monitoring instrument 10 includes a model APM520, which has the functions of full electric quantity measurement, switch quantity, analog quantity input and output, and electric energy data statistics.

[0029] The model of 5G industrial DTU device 2 is H7910, which supports 5G SA / NSA networking and is backward compatible with 4G / 3G network standards, making networking more convenient. In terms of interfaces, it meets the requirements of gigabit network port, serial port, wireless GPS (reserved) and other interfaces. The gigabit LAN port supports 10 / 100 / 1000Mbps adaptation with a rate greater than 500Mbps.

[0030] Industrial POE switch 3 is a switch that can provide power supply to terminal devices through Ethernet cables. In 5G networks, a large number of terminal devices require a stable power supply, while traditional power lines are expensive to lay and inconvenient to maintain. Industrial POE switches provide reliable power supply support for 5G networks by integrating power and data transmission on one Ethernet line. The power supply of industrial POE switches can be flexibly configured according to actual needs to meet the power consumption requirements of different terminal devices. This flexibility enables industrial POE switches to provide continuous and stable power supply for various equipment in the industrial field, whether it is surveillance cameras, sensors, wireless APs or intelligent robots, etc., can get reliable power supply to ensure their normal operation.

[0031] Communication management machine 7, communication management machine is also called DPU. It has multiple downstream communication interfaces and one or more upstream network interfaces, which is equivalent to the front-end machine, i.e., the monitoring computer. It is used to collect and summarize the communication data of all intelligent monitoring / protection devices in a substation, and send them to the upper-level master station system (back-end machine and DCS of the monitoring center) in real time to complete the remote signaling and telemetry functions. On the other hand, it receives the command issued by the back-end machine or DCS, and forwards it to the intelligent series units in the substation to complete the remote control of the opening and closing of each switchgear in the plant or station or the parameter setting of the device, and realize the remote control and remote adjustment functions. At the same time, it should also be equipped with multiple serial interfaces to facilitate communication with other intelligent devices in the plant.

[0032] The power quality monitoring device 8 is a special device for measuring power quality related parameters by introducing voltage and current signals. The voltage input uses a high voltage isolation module, and the current input uses a high-precision current transformer to safely isolate the input signal from the measurement system.

[0033] The temperature transmitter 9, the power signal transmitter 11, and the vibration signal transmitter 12 are used to collect temperature signals, power signals, and vibration signals from various parts of the wind power generation system. Among them, the power signal transmitter 11 includes a voltage signal transmitter and a current signal transmitter, which are used to collect voltage and current signals from various nodes of the wind power generation line.

[0034] The working principle of the utility model is:

[0035] like Figure 1 and Figure 2 As shown, the wind turbine PLC controller 4 is connected to a wind speed sensor, a wind direction sensor, a wind turbine speed sensor and a power collector to collect relevant operating parameters of the wind turbine. A transformer measurement and control device 5 is set in the transformer box behind the wind turbine to protect and remotely monitor the wind power transformer box, realizing the functions of "remote signaling, remote measurement, remote control and remote adjustment". The wind turbine PLC controller 4 and the transformer measurement and control device 5 are multiple groups. The wind turbine PLC controller 4 and the transformer measurement and control device 5 are all connected to the 5G industrial DTU device 2 through 5G wireless communication, and the 5G industrial DTU device 2 is wired to the 5G private network device 6. Among them, the wind turbine PLC controller 4 and the transformer measurement and control device 5 are both equipped with 5G communication terminals. The communication management machine 7 collects the temperature signal, power signal and vibration signal of the wind power generation system collected by the temperature transmitter 9, the multi-function monitoring instrument 10, the power signal transmitter 11 and the vibration signal transmitter 12 and sends them to the industrial POE switch 3. The data collected by the temperature transmitter 9 and the multi-function monitoring instrument 10 are mainly Figure 1 The vibration signal transmitter 12 is for each component on the wind turbine body, and the power signal transmitter 11 collects signals throughout the entire power generation process. At the same time, the power quality monitoring device 8 also mainly collects parameters related to the power quality before the medium-voltage bus. The industrial POE switch 3 wirelessly sends the above-mentioned collected data to the remote monitoring server 1 through the 5G industrial DTU device 2, realizing remote wind power generation monitoring based on 5G.

[0036] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A 5G-based wind farm wireless monitoring system, characterized in that: Including remote monitoring servers, 5G industrial DTU equipment, industrial POE switches, fan PLC controllers, box-type transformer measurement and control devices, optical fiber ring networks, communication management machines, power quality monitoring devices, temperature transmitters, multi-function monitoring instruments, power signal transmitters and vibration signal transmitters; The temperature transmitter, multifunctional monitoring instrument, power signal transmitter, and vibration signal transmitter are communicatively connected with the communication management machine; The fan PLC controller and the box transformer measurement and control device are connected to the 5G industrial DTU device through 5G wireless communication. The 5G industrial DTU device is connected to the 5G private network device. The 5G private network device, the communication management machine, and the power quality monitoring device are connected to the industrial POE switch through communication. The industrial POE switch is communicatively connected with the remote monitoring server.

2. The 5G-based wind farm wireless monitoring system according to claim 1 is characterized in that: The fan PLC controller is connected with a wind speed sensor, a wind direction sensor, a fan rotation speed sensor and a power collector.

3. The 5G-based wind farm wireless monitoring system according to claim 1 is characterized in that: The model of the box-type transformer measurement and control device is AM6-PWC.

4. The 5G-based wind farm wireless monitoring system according to claim 1 is characterized in that: The model of the multifunctional monitoring instrument is APM520.

5. The 5G-based wind farm wireless monitoring system according to claim 1 is characterized in that: The 5G industrial DTU device model is H7910.

6. The 5G-based wind farm wireless monitoring system according to claim 4 is characterized in that: The power signal transmitter includes a voltage signal transmitter and a current signal transmitter.

Images