Small hydropower station measurable, adjustable and controllable device based on 5G

Abstract

The invention discloses a 5G-based small hydropower station measurable, adjustable and controllable device, which relates to the field of small hydropower station adjustability, and comprises an electric quantity acquisition module, a non-electric quantity acquisition module, a protection module, a data processing module and a communication module, hydrological data, generator set state data and line state data are acquired through the electric quantity acquisition module and the non-electric quantity acquisition module, 5G wireless transmission is adopted, and compared with an optical fiber laying scheme, the investment cost of a hydropower station is greatly reduced, and communication is stable; the electric quantity acquisition module, the non-electric quantity acquisition module, the protection module, the data processing module and the communication module are integrated in one device, the hydrological condition and the operation state of the whole hydropower station can be monitored in real time, meanwhile, a line is protected, encryption and decryption are conducted through the micro encryption machine, and the safety of link data is guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of small hydropower controllable technology, and in particular to a 5G-based small hydropower measurable, adjustable and controllable device. Background Art

[0002] Small hydropower (small hydropower stations) are mostly located in remote mountainous areas with inconvenient transportation and communication. Small hydropower decides whether to generate electricity based on the water supply. However, the grid dispatching cannot timely grasp the production statistical data required for the dispatching of small hydropower, such as load forecasting, daily load measurement, terminal voltage monitoring, terminal current monitoring, reactive power, and power. Therefore, it is necessary to establish a platform for uploading the production data of small hydropower to improve the management level of grid dispatching and grid operation.

[0003] Accessing the dispatching automation system through SDH, PCM and other equipment requires access to the dispatching system via optical cable transmission. The one-time investment for a single site is large, and most hydropower stations are located in deep mountains with inconvenient transportation, and the cost of laying optical cables is even higher.

[0004] Access is through power carrier and other methods. The power carrier communication method is affected by factors such as the power grid architecture and is difficult to operate stably in the long term.

[0005] In summary, there is a need for an integrated product that can assist the dispatching department in mastering the dispatching information such as load forecasting, daily load measurement, terminal voltage monitoring, terminal current monitoring, reactive power, and power, and at the same time reduce the investment pressure of hydropower stations, and can transmit data stably and securely, and can be remotely measured, adjusted, and controlled;

[0006] To this end, we provide a 5G-based small hydropower measurable, adjustable and controllable device to solve the above problems. Summary of the invention

[0007] In response to the problems existing in the above-mentioned prior art, the present invention provides a 5G-based small hydropower measurable, adjustable and controllable device, which encrypts the data such as hydropower station load forecast, daily load measurement, terminal voltage monitoring, terminal current monitoring, reactive power and power, and transmits them to the scheduling background through the 5G wireless network. At the same time, the scheduling background can realize the remote measurable, adjustable and controllable functions of the hydropower station.

[0008] In order to achieve the above-mentioned purpose, the present invention adopts a 5G-based small hydropower measurable, adjustable and controllable device, including: an electric quantity collection module, a non-electric quantity collection module, a protection module, a data processing module and a communication module;

[0009] The power collection module collects the voltage, current, active power and reactive power of each generator set in the hydropower station, the voltage, current, active power and reactive power of the grid-connected part, and the switch status and fault status of various switches;

[0010] The non-electricity collection module collects the ambient temperature, water temperature, water level, and transformer oil temperature around the hydropower station;

[0011] The protection module monitors the working status of the hydropower station line and has overvoltage protection, overcurrent protection, undervoltage protection, differential protection, and overload protection;

[0012] The data information collected by the power collection module, non-power collection module and protection module is sent to the data processing module for processing and storage, and then transmitted to the encryption machine and wireless communication gateway via the communication module. The encryption machine performs data encryption and decryption of the dispatching master station command, and the wireless communication gateway is responsible for sending the data to the dispatching master station via 4G or 5G communication.

[0013] As a further optimization of the above solution, when the protection module is in a remote state, it receives instructions to control the start and stop of the generator set of the hydropower station or adjust the power generation power of the generator set.

[0014] As a further optimization of the above scheme, the dispatching master station sends control or adjustment instructions based on the received hydrological conditions, line status, and power generation status information. After the wireless communication gateway receives the instruction, it is decrypted by the encryption machine and sent to the data processing module. The data processing module controls the protection module to start and stop the generator set or adjust the power generation according to the instruction, and sends the execution status to the dispatching master station.

[0015] As a further optimization of the above scheme, the communication module, data processing module, power collection module, non-power collection module and protection module are powered by a natural energy utilization module. The natural energy utilization module includes a solar power generation device, a wind power generation device and an electric energy storage device. The solar power generation device generates electricity using solar energy and converts solar energy into electric energy using a solar energy conversion device. The wind power generation device generates electricity using wind energy and converts wind energy into electric energy using a wind energy conversion device. The electric energy is stored in the electric energy storage device.

[0016] As a further optimization of the above scheme, the ambient temperature at different locations around the hydropower station is obtained by using a drone equipped with a temperature measuring camera.

[0017] As a further optimization of the above solution, the drone is charged by wireless charging.

[0018] As a further optimization of the above solution, a helipad for the UAV to stay is arranged on the solar power generation device or the wind power generation device.

[0019] As a further optimization of the above solution, a wireless charging device is provided on the apron.

[0020] The 5G-based small hydropower measurable, adjustable and controllable device of the present invention has the following beneficial effects:

[0021] The present invention is a 5G-based measurable, adjustable and controllable small hydropower device, which collects hydrological data, generator set status data and line status data through an electricity collection module and a non-electricity collection module, and adopts 5G wireless transmission. Compared with the optical fiber laying solution, it greatly reduces the investment cost of the hydropower station and has stable communication.

[0022] The present invention is a 5G-based measurable, adjustable and controllable small hydropower device, which integrates an electricity collection module, a non-electricity collection module, a protection module, a data processing module and a communication module into one device. It can monitor the hydrological conditions and operating status of the entire hydropower station in real time while protecting the lines. It uses a micro encryption machine for encryption and decryption to ensure the security of the link data.

[0023] The present invention is a measurable, adjustable and controllable small hydropower device based on 5G. Through the protection module, the dispatching host can remotely control the start and stop of the hydropower station generator set and remotely adjust the power generation power of the hydropower station. It collects non-electrical parameters such as water level, water pressure, temperature, oil temperature, etc., as well as the electrical quantity and line status of the generator set, which is convenient for the dispatching department to understand the situation of the hydropower station in real time and accurately send dispatching instructions.

[0024] With reference to the following description and drawings, a specific embodiment of the present invention is disclosed in detail, indicating the manner in which the principles of the present invention can be adopted. It should be understood that the scope of the embodiments of the present invention is not limited thereby, and within the spirit and scope of the appended claims, the embodiments of the present invention include many changes, modifications and equivalents. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of a 5G-based small hydropower measurable, adjustable and controllable device of the present invention;

[0026] Figure 2 It is a schematic diagram of the power collection module and the non-power collection module of the present invention;

[0027] Figure 3 is a schematic diagram of a protection module of the present invention;

[0028] Figure 4 This is the encryption and decryption communication flow chart of the present invention;

[0029] Figure 5 This is a schematic diagram of a natural energy utilization module of the present invention;

[0030] Figure 6 This is an application diagram of arranging a helipad on a solar power generation device or a wind power generation device according to the present invention. DETAILED DESCRIPTION

[0031] Please refer to the instruction manual Figure 1-6The present invention provides a technical solution: a 5G-based small hydropower measurable, adjustable and controllable device, including: an electricity collection module, a non-electricity collection module, a protection module, a data processing module and a communication module.

[0032] As attached Figure 2 As shown in the figure, the power collection module in the present invention collects the voltage, current, active power, reactive power, etc. of each generator set in the hydropower station, the voltage, current, active power, reactive power, etc. of the grid-connected part, and the switch status, fault status, etc. of various switches; the non-power collection module collects the ambient temperature, water temperature, water level, and transformer oil temperature around the hydropower station.

[0033] like Figure 3 As shown, the protection module is mainly responsible for monitoring the working status of the hydropower station line, and has overvoltage protection, overcurrent protection, undervoltage protection, differential protection, overload protection, etc., and can receive instructions to control the start and stop of the hydropower station generator set, or adjust the power generation power of the generator set in a remote state.

[0034] like Figure 4 As shown, the data of the communication module is transmitted to the encryption machine and the wireless communication gateway. The encryption machine is responsible for encrypting the data and decrypting the dispatching master station commands. The wireless communication gateway is responsible for sending the data to the dispatching master station via 4G / 5G communication.

[0035] The power collection module and the non-power collection module transmit the collected telemetry and telesignaling to the data processing module. The protection module sends the line status and fault information to the data processing module. The data processing module processes these data and information and stores them. It transmits emergency events or changes in telemetry and telesignaling to the communication module, which is encrypted by the encryption machine and sent to the dispatching master station through the wireless communication gateway. The dispatching master station sends control or adjustment instructions based on the received hydrological conditions, line status, power generation status and other information. After receiving the instructions, the wireless communication module decrypts them through the encryption machine and sends them to the data processing module. According to the instructions, the data processing module controls the protection module to start and stop the generator set, or adjust the power generation, and sends the execution status to the dispatching master station.

[0036] It should be noted that the power collection module includes voltage sensors, current sensors, power analyzers, and power display lights to determine the voltage, current, active power, reactive power, etc. of each generator set in the hydropower station, the switch status of the knife switch, etc. The fault status of the knife switch can be determined through image recognition technology or current signal analysis.

[0037] The non-electrical data collection module includes temperature sensors, water level sensors, etc., which can be used to collect the ambient temperature, water temperature, water level, and transformer oil temperature around the hydropower station.

[0038] The devices used in the power collection module and the non-power collection module are all existing technologies and will not be described in detail here.

[0039] It should also be noted that the protection module includes an online monitoring system for transmission lines, overvoltage relays, fuses, undervoltage relays, current transformers, and thermal relays, which can respectively realize overvoltage protection, overcurrent protection, undervoltage protection, differential protection, and overload protection. These are all common existing technologies and will not be elaborated here.

[0040] In the present invention, since the power generation capacity of small hydropower stations is small, if the small hydropower measurable, adjustable and controllable devices based on 5G all use the electricity generated by small hydropower stations, the consumption will be large and the cost will still be relatively high.

[0041] Therefore, a natural energy utilization module is provided, and the natural energy utilization module includes a solar power generation device, a wind power generation device, and an electric energy storage device; the solar power generation device utilizes solar energy to generate electricity, and utilizes a solar energy conversion device to convert solar energy into electric energy, and the electric energy is stored in the electric energy storage device; the wind power generation device utilizes wind energy to generate electricity, and utilizes a wind energy conversion device to convert wind energy into electric energy, and the electric energy is stored in the electric energy storage device; the electric energy storage device uniformly supplies power to the communication module, the data processing module, the power collection module, the non-power collection module, and the protection module. In the present invention, the natural energy utilization module is provided to supply power to the small hydropower measurable, adjustable, and controllable device based on 5G, thereby reducing the load of the hydropower station itself.

[0042] In another embodiment, considering that in actual applications, when collecting the ambient temperature around a hydropower station, different numbers of temperature sensors need to be arranged according to the actual area of ​​the hydropower station, which is costly and inconvenient to maintain. Therefore, the present invention also uses a method of using a drone equipped with a group of temperature measuring cameras instead of arranging multiple temperature sensors. The drone is regularly equipped with a temperature measuring camera to patrol and measure the temperature, which can quickly obtain the ambient temperature of different locations around the hydropower station without the need for frequent manual maintenance.

[0043] Specific implementation plan: refer to the attached Figure 6 As shown, the UAV adopts wireless charging. A helipad for the UAV to land is arranged on the solar power generation device or wind power generation device arranged around the hydropower station. The helipad is equipped with a wireless charging device. When the UAV lands on the helipad, it is automatically charged by wireless charging without human intervention.

[0044] In the later stage, it is also considered to install a retractable rain shelter on the apron, which will not be elaborated here; and wireless charging is an existing technology.

Claims

1. A 5G-based small hydropower measurable, adjustable and controllable device, characterized in that: include: Electric quantity collection module, non-electric quantity collection module, protection module, data processing module and communication module; The power collection module collects the voltage, current, active power and reactive power of each generator set in the hydropower station, the voltage, current, active power and reactive power of the grid-connected part, and the switch status and fault status of various switches; The non-electricity collection module collects the ambient temperature, water temperature, water level, and transformer oil temperature around the hydropower station; The protection module monitors the working status of the hydropower station line and has overvoltage protection, overcurrent protection, undervoltage protection, differential protection, and overload protection; The data information collected by the power collection module, non-power collection module and protection module is sent to the data processing module for processing and storage, and then transmitted to the encryption machine and wireless communication gateway via the communication module. The encryption machine performs data encryption and decryption of the dispatching master station command, and the wireless communication gateway is responsible for sending the data to the dispatching master station via 4G or 5G communication.

2. According to claim 1, a 5G-based small hydropower measurable, adjustable and controllable device is characterized by: When the protection module is in a remote state, it receives instructions to control the start and stop of the generator set of the hydropower station or adjust the power generation power of the generator set.

3. According to claim 1, a 5G-based small hydropower measurable, adjustable and controllable device is characterized by: The dispatching master station sends control or adjustment instructions based on the received hydrological conditions, line status, and power generation status information. After receiving the instructions, the wireless communication gateway decrypts them through the encryption machine and sends them to the data processing module. The data processing module controls the protection module to start and stop the generator set or adjust the power generation according to the instructions, and sends the execution status to the dispatching master station.

4. The 5G-based small hydropower measurable, adjustable and controllable device according to claim 1 is characterized in that: The communication module, data processing module, power collection module, non-power collection module and protection module are powered by a natural energy utilization module. The natural energy utilization module includes a solar power generation device, a wind power generation device and an electric energy storage device. The solar power generation device generates electricity using solar energy and converts solar energy into electric energy using a solar energy conversion device. The wind power generation device generates electricity using wind energy and converts wind energy into electric energy using a wind energy conversion device. The electric energy is stored in the electric energy storage device.

5. The 5G-based small hydropower measurable, adjustable and controllable device according to claim 1 is characterized by: The ambient temperature at different locations around the hydropower station is obtained by using a drone equipped with a temperature measuring camera.

6. The 5G-based small hydropower measurable, adjustable and controllable device according to claim 5, characterized in that: The drone is charged by wireless charging.

7. The 5G-based small hydropower measurable, adjustable and controllable device according to claim 5, characterized in that: The solar power generation device or the wind power generation device is provided with a helipad for the UAV to stay.

8. The 5G-based small hydropower measurable, adjustable and controllable device according to claim 7 is characterized by: A wireless charging device is arranged on the apron.

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