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| How to be fast and stable in the "big" era of wind power? |
| Release time:2022-12-24 09:07:49| Viewed：68 |
How to be fast and stable in the "big" era of wind power?
"The introduction of new models to the application is too fast, with an increase of two megawatts a year, and the annual rate of new models is faster than that of mobile phones." At the 2022 Global Offshore Wind Power Conference held recently, Qin Haiyan, Secretary General of the Wind Energy Professional Committee of the China Renewable Energy Society, sighed.
Some people describe the development history of China's wind power industry as "emerging from cracks and rising from chaos". In the past 20 years from 2001 to 2020, China's wind power generation has developed rapidly. The cumulative installed capacity has increased from 400,000 kw to 281 million kw, with a compound annual growth rate of more than 41%, twice the global compound annual growth rate in the same period. (Data source: Research report of Wind Energy Professional Committee of China Renewable Energy Association, statistical report of China Electricity Council)
The rapid development of China's wind power industry has, on the one hand, mended the gap in the domestic wind power industry, and achieved the goal of growing from scratch; On the one hand, there are also some "thick stitches" left: how to go from having to being strong? How to be fast and stable?
The answer is actually an open secret: to ensure reliability with a comprehensive test and verification system.
A high score answer sheet for fan test
Recently, the 11MW wind turbine generator set of the Haiyan platform for electrical wind power was tested in the Guangdong Provincial Wind Power Coastal Test Base. As the largest unit with single capacity tested in China, it was the first time that two 6MW test equipment were used in parallel for grid adaptability testing in China. At present, the test base is still a weak power grid, and it only took more than two months to complete five tests and certifications related to grid connection. During the test, the maximum power generation per day reached 232000 kilowatt hours, and the equivalent full power generation hours per day reached 21 hours, which fully verified the excellent power generation performance of the unit.
It is worth mentioning that Guangdong Provincial Wind Power Coastal Test Base is the first wind power coastal test base in China, and the maximum detection capacity of a single machine can reach 24MW. As the "certification and testing service platform" and "public test platform" for domestic offshore wind power large capacity units, electric wind power has two self owned test positions in the test base. The test base is adjacent to the electrical wind power manufacturing base in Shantou, Guangdong. In the future, it will become a reality to complete the "production assembly certification" of wind turbines in a park, and the "one-stop" production test certification will further improve the delivery efficiency.
From point to line, from line to surface
It is no accident that such outstanding achievements can be "tested". It is an inevitable event for the whole process and system planning, layout, test and verification capability of electrical wind power.
2007 -- Sprouting
As early as 2007, at the beginning of the cooperation between electric wind power and Aerodyn, it has absorbed the concept and experience of a set of full life cycle solutions at the forefront of the industry, including, of course, advanced testing and verification methodology. SYNCHRONIZE, that is, we started the planning of the test and verification system, cooperated with TUV, DNV and other international certification bodies, and took the lead in carrying out research on power characteristics, load tests and grid connection tests with the international first-class testing institutions, German DEWI, China Electric Power Research Institute and Jianheng, gained experience in testing and verification of the whole machine, and built the prototype of the test and verification system for electrical wind power.
2012 -- Development
The opportunity for the overall planning and development of the electrical wind power test and verification system began in the period of comprehensive cooperation with Siemens in 2012. In the process of joint venture and cooperation, electrical wind power fully introduced the test and verification standards of Siemens in all aspects of PDT product development. The test team has been to the Danish headquarters of Siemens Wind Power for many times to participate in various tests of components and complete machines, further absorbing the leading experience in the wind power industry, and forming a unique and domestic leading test verification system for electrical wind power.
2018 - Layout
After more than 10 years of construction and development, the test and verification capability of electrical wind power has drawn a "guarantee network" for the reliability of all links of the wind power life-cycle solution.
From raw materials, components, systems, complete machines to wind farms
Deputy Chief Engineer of Electrical Wind Power Zhu Zhiquan, vice president of the Institute of Engineering and Technology, said: "Large scale test platforms have huge investment and long construction period, and to ensure the synchronization of test nodes and new product development and verification, we have overcome a series of problems such as scheme design, equipment procurement, special tool tooling development, installation and commissioning, completed the most important part of the test system construction, and finally established a test system from raw materials, components, systems, complete machines to the wind farm, covering the full life cycle of wind power."
In the process of exploration, Electric Wind Power has established its own V&V (Verification&Validation) team, which has laid a solid foundation for the establishment of the early testing and verification system. However, the final establishment of the testing and verification system must be realized by establishing a test platform and configuring test equipment.
Electric wind power has a 20MW large-scale wind turbine test bench, the largest domestic 10MW/20MW fault through test equipment, and the test capability is in the lead in the domestic wind power industry. In addition, it also has generator rotation test bench, three-axis vibration test bench, hardware in the loop simulation test bench for electric control system, constant temperature and humidity hydraulic pitch test bench, medium and small parts power grid simulation power system, engine room full power test bench, laser radar anemometer, power quality analyzer and other facilities.
Generator rotating test bench
Large generator test bench
Grid connection test device In addition, many testing capabilities of electrical wind power have been recognized by CNAS, such as: wind turbine power characteristic curve, noise, power quality, mechanical load, component vibration test, etc.
4 major test and verification bases, multiple prototype test bases
Through cooperation with the owners and third-party institutions, Electric Wind Power has four major test and verification bases in Lingang, Shanghai, Dongtai, Jiangsu, Putian, Fujian and Shantou, Guangdong. In order to fully verify the performance and reliability of the prototype, Electric Wind Power has also arranged a number of prototype test sites in Zhangbei Test Base and Nanri Island, Fujian, to integrate the concept of test verification and advanced test verification technology into the full life cycle of wind power, and drive the improvement of electric wind power test capability.
In addition to conventional test verification, electrical wind power focuses on the test problems and difficulties concerned by the industry, and also plans the test verification of floating units. At the same time, in order to verify the grid friendly performance of large capacity offshore wind turbines, electric wind power has also developed 10MW+grid adaptability testing equipment, as well as the largest single 10MW parallel 20MW grid connection testing equipment in China.
Win win cooperation and integration of internal and external resources
2019 - DNV, an international first-class certification institution, held a licensing ceremony for the electrical wind power laboratory, which is the first DNV contracted laboratory in the domestic wind power industry
2021 - Electric wind power test center becomes the "joint laboratory" of the authentication and certification center The test and verification system of electrical wind power started from external cooperation and sprouted from a set of global leading theories and methodologies at that time. Today, the upgrading and iteration of testing and verification capabilities are not only based on the accumulation of their own technology research and development and project experience, but also deepened through external cooperation and exchanges.
Electric wind power relies on its own largest offshore wind power sample library in China, uses the richest offshore wind power sample data, and at the same time makes full use of external testing resources to establish a good cooperation relationship with domestic and foreign first-class testing and certification institutions, such as DNV, CQC, Jianheng, etc., and has accumulated rich testing data and experience.
Test feeding back design and test iteration design
"In the test words test" is far from enough. From a local perspective, testing is the end point of phased reliability verification, and also the starting point of continuous upgrading and iteration of solutions in the whole process and life cycle.
More importantly, test verification can feed back the design, reverse the design iteration, and even feed back the optimization and improvement of all processes and links.
Taking the recent 11MW unit test of electric wind power as an example, the unit test verification is very strict. In addition to the conventional type test, 40+special verification projects have been carried out. The 100+sensors installed in the unit are used for signal input to verify the design performance of the whole unit and its components, including the cooling system of the whole unit, converter control system, typhoon strategy under typhoon mode, etc., to ensure that the unit can operate reliably under extreme adverse conditions.
After the test is completed, continue to optimize the plan on the basis of completing the set objectives, and carry out other special research to optimize and improve the overall performance. Electrical wind power has listed an additional 20+topics, and regularly carry out special analysis and plan promotion every week. This means that each test is the starting point of fan design, and the design threshold of the best balance between reliability and cost is finally reached in continuous iteration.
A long slope with thick snow is worth a long time. Electric wind power has been deeply cultivated in the industry for more than ten years, and has always been accumulating with a pragmatic attitude and a rational rhythm. As mentioned above, it is an open secret to ensure reliability with a comprehensive test and verification system. It is easy to know but difficult to do. Test verification is a huge project that has been accumulated for a long time and continuously invested. It is impossible to verify the output in the short term. However, such a difficult and correct thing, electric wind power has been insisting. In the process of persistence, build a moat of "high reliability and reliability". We will build a more solid wind power future through perseverance. |
