CN105785396A - Laser radar wind measurement system based on mobile ship platform - Google Patents

Abstract

The invention discloses a laser radar wind measurement system based on a mobile ship platform, comprising a mobile ship platform, a protective box, a wind measurement laser radar, a real-time attitude measurement module, a communication module, a control module, a battery pack, a weather measurement module, and a radar antenna; The system has the characteristics of small size, light weight, convenient installation and deployment, and strong portability, and can comprehensively reduce the cost of offshore operations. The invention can effectively solve the short-term measurement work of the first wind field in a special sea area, the short-term measurement verification work relative to the numerical simulation of the wind state in the corresponding sea area and the long-term measurement at sea, the acquisition of real-time wind state data in the construction stage of the wind field, and the debugging of the offshore wind field And other special problems such as measurement work in the operation phase that require short-term measurement operations.

Description

Lidar wind measurement system based on mobile ship platform

technical field

The invention belongs to the field of wind profile measurement of offshore wind field.

Background technique

In recent years, governments of various countries have intensified the development and utilization of offshore wind energy resources. The development prospects of the offshore wind power industry are promising, and in the future, it will gradually develop towards large-scale, large-scale and large-scale deep waters. The abundance and changes of wind energy resources will directly affect the development cost and investment benefits. Therefore, at the beginning of offshore wind energy development, high-precision, high-reliability short-term and long-term wind profiles within the corresponding height range are collected. Data is crucial, and it is an important basis for offshore wind energy assessment, wind farm site selection, and offshore wind farm operation and maintenance.

At present, the common method of collecting offshore wind profile data in the industry is to build a corresponding number of large-scale offshore wind measuring towers in the corresponding sea area, and use anemometers installed at different heights of the offshore wind measuring towers to measure and collect wind at fixed points. data, or more recently ocean buoy technology combined with LiDAR uses LiDAR to measure wind profiles. However, these methods are only suitable for long-term wind data collection, and are obviously not suitable for short-term measurement. Regardless of the cost and difficulty of design, construction, operation and maintenance, or the degree of flexibility in use, the existing methods cannot meet short-term wind conditions. The need for wind data measurement and collection.

Contents of the invention

Purpose of the invention: In order to overcome the deficiencies in the existing methods, the present invention provides a laser radar wind measurement system device based on a mobile ship platform, which can meet the requirements of short-term offshore wind data measurement and collection operations, and has obvious cost advantages , easy operation and maintenance, higher flexibility and convenience, small size and weight, obvious advantages in portable transportation, and can make full use of existing offshore mobile ship platforms.

Technical solution: In order to achieve the above object, the present invention can adopt the following technical solutions:

A laser radar wind measurement system based on a mobile ship platform, including a mobile ship platform, a protective box installed on the mobile ship platform, a wind measurement laser radar located in the protective box, a real-time attitude measurement module, a communication module, a control module, and a storage battery Group, two poles extending from the protective box, a meteorological measurement module installed on one pole, and a radar antenna installed on the other pole; wherein, the wind-measuring lidar is used for measuring and collecting The data of vertical wind speed, turbulence and wind shear; the real-time attitude measurement module is used to measure and record the movement and orientation changes of the six degrees of freedom of the whole system; the meteorological measurement module is used to measure the horizontal wind speed and direction on the deck of the mobile ship platform, Meteorological parameters of air pressure, temperature and humidity.

Compared with the prior art, the laser radar wind measurement system device based on the mobile ship platform of the present invention has the following beneficial effects:

1. The system device proposed by the present invention has the characteristics of small size, light weight, convenient installation and deployment, and strong portability, and has simple requirements for transportation methods and loading platforms.

2. On the one hand, the present invention can make full use of the movable ship platform in the corresponding sea area, eliminating the cost of carrying the platform for short-term wind measurement;

3. The present invention can effectively solve the short-term measurement work of the wind field for the first time in a special sea area, the short-term measurement verification work relative to the numerical simulation of the wind state in the corresponding sea area and the long-term measurement at sea, the real-time wind state data acquisition in the wind field construction stage, and the wind field at sea. Other special problems that require short-term measurement operations such as field commissioning and measurement work in the operation phase.

On the basis of the above-mentioned technical solution, the present invention can also make other improvements, including:

Further, it also includes a photovoltaic panel on the mobile ship platform, a charging interface on the protective box, the charging interface is connected to the battery pack through wires, and the photovoltaic panel is connected to the charging interface through wires.

Further, a circular hole is opened on the top plate of the protective box as a channel for the laser beam emitted by the wind-measuring lidar.

Further, the wind lidar is a continuous wave lidar.

Further, the communication module and the control module are stacked up and fixed on the bottom of the protective box.

Further, the protective box is also provided with supporting feet, and the supporting feet are fixed on the mobile ship platform by welding or bolts.

Further, the said protective box is made of high-density polyethylene.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the present invention

Including, protective box 1, support feet 2, wind laser radar 3, real-time attitude measurement module 4, communication module 5, control module 6, battery pack 7, pole 8, meteorological measurement module 9, radar antenna 10, charging interface 11. Charging line 12, photovoltaic panel 13, mobile ship platform 14.

detailed description

As shown in Figure 1, the laser radar wind measurement system based on the mobile ship platform of the present invention includes: a protective box 1, a support leg 2, a wind measurement laser radar 3, a real-time attitude measurement module 4, a communication module 5, a control module 6, a storage battery Group 7, pole 8, small weather measurement module 9, radar antenna 10, charging interface 11, charging cable 12, photovoltaic panel 13 and mobile ship platform 14.

Wherein, the support feet 2 on the four corners of the protective box 1 are fixed on the deck of the mobile ship platform 14, and the top plate of the protective box 1 has a round hole to serve as a channel for the wind-measuring lidar 3 to emit the laser beam. A charging interface 11 is arranged on the side plate of the protective box 1, which is connected to the photovoltaic panel 13 through the charging line 12; the wind measurement laser radar 3, the real-time attitude measurement module 4, the communication module 5, the control module 6 and the battery pack 7 are all installed and fixed on the protective box 1. The corresponding positions in the box 1 are connected to each other through corresponding data lines and wires, and the charging interface 11 is connected to the battery pack 7 through wires; the photovoltaic panel 13 is installed and arranged on the deck of the mobile ship platform 14; two vertical poles 8 are installed Fixed on the two diagonal sides of the protective box 1, a small meteorological measurement module 9 is installed on the top of a vertical pole 8, and a radar antenna 10 is installed on the other.

Preferably, the support feet 2 are rigidly fixed on the deck of the mobile ship platform 14 by simple welding or bolt fastening, so as to ensure that the entire system device does not move relative to the mobile ship platform 14 .

Preferably, the protective box 1 is made of high-density polyethylene, so as to reduce the structural weight and enhance its corrosion resistance.

As a preference, the wind-measuring laser radar 3 is a continuous wave laser radar, which can measure and collect horizontal and vertical wind speed, turbulence and wind shear on the corresponding height layer, and meet the corrosion requirements of severe sea conditions, salt spray and seawater, The whole does not require a special mechanical compensation device, and has the function of cleaning the lens by itself.

The real-time attitude measurement module 4 is used to measure and record the movement and orientation changes of the six degrees of freedom of the entire system in real time, and based on this, error correction is performed on the wind condition data of the subsequent measurement.

The communication module 5 and the control module 6 are stacked up and down and fixed on the bottom of the protective box 1, and respectively play a role in ensuring the communication, data transmission and overall control of the entire system device.

Preferably, the storage battery pack 7 can meet the working power demand of the entire system device for at least three days once fully charged.

The small meteorological measurement module 9 plays the role of measuring conventional meteorological parameters such as horizontal wind speed and direction, air pressure, temperature and humidity on the deck of the mobile ship platform 14 .

The photovoltaic panel 13 is installed and arranged on the deck of the mobile ship platform 14 to solve the charging problem of the mobile ship platform 14 without charging equipment. Charge.

The mobile ship platform 14 is the carrying platform of the whole system device, and plays the role of a carrier, and all other available ship platforms such as the operation platform of the offshore wind farm, the offshore wind power maintenance ship, and the special engineering ship can be selected.

The deployment method for the installation of the above-mentioned lidar wind measurement system based on the mobile ship platform includes the following steps:

Step 1: Preparatory work, determine the relevant sea area for short-term measurement, and select the available mobile ship platform 14, install the two poles 8 and their carrying equipment in place at the same time, and complete the assembly of the system device;

Step 2: transport the entire system device to the mobile ship platform 14 used, and prepare for installation and fixation;

Step 3: Prepare the deck surface of the mobile ship platform 14, fix the protective box 1 of the system device on the treated deck by simple welding or bolt fastening, and arrange the photovoltaic panels 13 or prepare the mobile ship platform 14 at the same time on the charging device;

Step 4: Initialize the wind measurement lidar 3, set the wind condition parameters to be measured and the corresponding measurement altitude, connect the charging equipment, debug the entire system device, and pay special attention to the debugging work of each sensor, communication module 5 and control module 6;

Step 5: Complete the commissioning work to meet the corresponding operation requirements, and then carry out short-term wind measurement operations.

The above is only a preferred embodiment of the present invention, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications are also possible. It should be regarded as the protection scope of the present invention.

Claims (7)

1. A laser radar wind measuring system based on a mobile ship platform, characterized in that: comprise a mobile ship platform (14), a protective box installed on the mobile ship platform, a wind measuring laser radar (3) positioned in the protective box, Real-time attitude measurement module (4), communication module (5), control module (6), battery pack (7), two poles (8) extending from the protective box, and a pole mounted on a pole (8) Meteorological measurement module (9), radar antenna (10) installed on another pole (8); Wherein, the wind-measuring laser radar (3) is used to measure and collect data including horizontal and vertical wind speed, turbulence and wind shear; The real-time attitude measurement module (4) is used to measure and record the movement and orientation changes of the six degrees of freedom of the entire system; The meteorological measurement module (9) is used for measuring meteorological parameters including horizontal wind speed and direction, air pressure, temperature and humidity on the mobile ship platform (14). 2. The lidar wind measuring system based on the mobile ship platform according to claim 1, characterized in that: it also includes a photovoltaic panel (13) on the mobile ship platform (14), a charging interface (11) on the protective box ), the charging interface is connected to the battery pack (7) through wires, and the photovoltaic panel is connected to the charging interface through wires. 3. The lidar wind measurement system based on the mobile ship platform according to claim 1, characterized in that: a round hole is opened on the top plate of the protective box (1) as a channel for the wind measurement lidar (3) to emit laser beams. 4. The laser radar wind measurement system based on the mobile ship platform according to claim 1, characterized in that: the wind measurement laser radar (3) is a continuous wave laser radar. 5. The lidar wind measurement system based on the mobile ship platform according to claim 1, characterized in that: the communication module (5) and the control module (6) are stacked up and down and fixed in the protective box (1) bottom. 6. The lidar wind measuring system based on the mobile ship platform according to claim 1, characterized in that: the protective box is also provided with support feet (2), and the support legs are fixed on the mobile ship platform (14) by welding or bolts. )superior. 7. The lidar wind measurement system based on the mobile ship platform according to claim 1, characterized in that: the protective box (1) is made of high-density polyethylene.