The Republican departure, along the G214 national road all the way south, about half an hour's drive, the scene outside the window gradually became monotonous and bleak, Tara Beach arrived. This vast land known for desertification, now because of new energy Going into people's field of vision again.
The data show that Gonghe County, Hainan Tibetan Autonomous Prefecture, is rich in light energy and wind energy resources, while Tara Beach is an ideal place to build photovoltaic power generation projects.
Recently, the reporter walked into the Yellow River Company's photovoltaic industry park in Gonghe County, where the water and light winds complemented the 1000 MW photovoltaic power generation base. The array of rows of blue photovoltaic cells was 'sparkling' under the sunlight. Looking from afar, like a blue ocean.
Republican multi-energy complementary 1000 MW photovoltaic power generation project. Our reporter Xian Wenjing photo
This is the world's largest single water, wind, wind and multi-energy complementary power generation base. It is also the largest 850 MW Longyangxia water-photovoltaic complementary photovoltaic power station built by the Yellow River Company in large-scale intelligent dispatching, wind, water and photovoltaic power generation combined control technology. Further innovation and practice in application.
'On June 24th, our water and light winds can complement the 1000 MW photovoltaic project to achieve grid-connected power generation, and deliver green clean energy to the grid with a power generation capacity of 1 million kWh per hour. 'Looking at the roots The power transmission line, Li Hui, deputy general manager of New Energy Integration Company, told the reporter proudly.
Time to return to December 2013, the first phase of the 850 MW Longyangxia water-photovoltaic photovoltaic power station was connected to the grid. This 'water-complementary' model broke the past. Photovoltaic power generation was considered as 'junk power' because of unstable power supply. The 'magic curse', smooth and stable power supply played an important role in the successful practice of 'Green Power 7 Days' to 'Green Power 9 Days' in our province.
From the complementation of water and light to the complement of water and light, the transformation here is not as simple as imagined.
'The project plans to build a total capacity of 1000 megawatts of photovoltaic projects and 20 megawatts of energy storage projects in the empirical base. Among them, 1000 megawatts of photovoltaic projects are divided into two phases, and the capacity of each unit is 500 megawatts.] This task was mentioned. Wu Jianhua, deputy general manager of the Yellow River Power Maintenance Engineering Co., Ltd., took out four words: Nothing is unprecedented.
100 MW national solar power demonstration base
There are a number of figures to support Manager Wu's point of view: From the contact with the photovoltaic industry in 2009, the company has moved to the north and south. So far, the installed capacity has reached 2,860 megawatts, and this is listed in the list of the first batch of integrated optimization demonstration projects of the National Energy Administration. Hard bones, need to complete the workload of the past four or five years in a short time.
'In a word, time is tight, demand is high, and it is difficult. ' How to connect to the grid on June 30 is a serious challenge for builders.
According to the plan, before the project starts, the company has formulated a detailed schedule, strictly controlling the nodes of the civil engineering, electromechanical installation units, and equipment supply time periods, and adopts a three-level network schedule as a system to strictly enforce the progress of all aspects. After the construction started in March this year, the construction of 13 construction units will be equalized, and the construction permit and on-site operation ticket management will be strengthened, and the “Safety Production Responsibility Letter” and “Labor Subcontracting Agreement” will be signed. 》, reduce labor disputes, speed up the progress of the project.
Reed, the manager of the Republican Photovoltaic Project of the Yellow River Electric Inspection Company, is an expert in electromechanical construction. Faced with huge construction pressure, the electric inspection company jumped out of the previous fixed working mode, converted the working ideas, and found a way to shorten the construction period.
'We moved the camp of the field operators to the midpoint of the booster station and the collection station. By shortening the working distance, the staff rushed to the scene as soon as possible, which greatly improved the work efficiency. At the same time, we replaced the normal power supply with temporary power supply. Pre-commissioning the equipment. Finally, by optimizing the staffing, increasing the way of personnel, and cohesively complete the electromechanical installation project. 'Reed said.
The Industrial Projects Department is a young team with an average age of less than 30 years old. 40 people are responsible for the material reporting, transportation, and management of the entire project. Especially in the installation of the relatively limited cable, the components become more popular. The situation that the product is in short supply has occurred. For this project department, five groups have been established according to the professional division: component group, bracket group, cable group, equipment group and lifting work group.
'The teams have a clear division of labor to ensure the normal supply of materials. In case of unsatisfactory supply, the project staff will communicate with the supplier in time to track the whole process. The lifting operation group is especially special and needs better lifting. Operational technology, but also risk awareness, especially in the case of traffic congestion, need to advance risk pre-judgment, as soon as possible to ensure the safety of loading and unloading goods. 'Yanhe Materials Co., Ltd. comprehensive industry project manager Yi Yunbin introduced Road.
Pu Xuekui, the person in charge of the lifting work, is an authentic Shandong man. In this project, the task of their working group is very heavy. How to arrange the unloading of goods under the premise of speeding up the progress, so as not to press the car, not delay, seemingly simple, in fact As long as there is a problem in one link, it will affect the whole work.
'The most day, you need to unload 100 cars, there are 15 light semi-trailers. Plus there is basically no signal on the construction site, communication depends on the walkie-talkie, coordination is very difficult.
In the interview, the reporter found that from the feasibility study stage of the previous project to the start of construction, the concept of scientific and technological innovation runs through.
Previously, in order to solve the problem of intermittent, volatility and randomness of photovoltaic power generation, Huanghe Company developed a mode of complementary operation of water and light, converting unstable photovoltaic power generation into safe, stable high-quality power supply and improving photovoltaic power generation. The power quality has better realized the functions of rapid compensation of hydropower and photovoltaic power generation, solved the problem of safe grid connection of photovoltaic power generation, filled the blank of the key technologies of large-scale water and solar complementation in China, and the application results have reached the international leading level, and promoted The development of international large-scale water-photo-complementary technology has laid the foundation for the subsequent joint development of large-scale wind, water, light and yellow river basin joint coordinated control technology and intelligent dispatching system application.
'This time, we have further innovation and practice in the application of large-scale intelligent dispatching, wind, water, and photovoltaic power generation combined control technology. The coordinated operation capability of the power station will be further improved, basically ensuring no light, no wind. The complementary power supply output curve will be smoother and more stable, and the power quality will be better and safer. 'Li Hui said that in addition, one of the biggest highlights of this project is to use a fixed bracket with a tilt angle of 33 degrees. The single-axis tracking system, the fixed bracket is easy to install and saves the construction period; the advantage of the flat single shaft is that the power generation efficiency is high, so that the power generation benefit is maximized, and the two are used together, killing two birds with one stone.
Republic wind farm
The innovation of technology is not only happening at the top. For the word innovation, Zhang Yiping, an old employee of the company, has a deep understanding.
'Just take the installation of photovoltaic panels, as early as 2013, dig a pit for ten minutes, now, less than a minute. In the sand hole, the sand is easy to slide, a water flush, this problem is solved. '
It is worth mentioning that this project also has a 'brothers' - a 20 MW energy storage project built at the same time.
As the first grid energy storage project in the province, the grid-connected operation of energy storage power stations will not only help to alleviate the power supply pressure during the peak period of the power grid, but also provide support for the scale development of renewable energy sources, and improve the peaking and frequency modulation capability of regional power grids. It is of great significance to improve the voltage level of the power grid, improve the quality of power supply and ensure the safe operation of the power grid. 'Project manager Fan Shaowei told reporters that this project has newly built 18 photovoltaic sub-arrays, of which 16 sub-arrays have different forms, capacities and operating modes. Only the batteries are divided into 5 different categories. In the next two to three years of testing, they will choose products that are more advantageous in terms of operation and maintenance.
'On June 24, after the 1000 MW PV project was connected to the grid, about 10 MW was put into operation every day, and about 200 MW has been put into production. On June 26, 20 MW of energy storage projects will be connected to the grid, which will be further Improve the function of the evidence base, help the company to build Qinghai's 100 billion lithium battery industry base, and improve the solar energy equipment manufacturing industry chain to provide support. 'Li Hui said.
As the outside world is concerned, the Yellow River Company is building the world's largest water-light and multi-energy complementary power generation base. The completion of this project not only makes important contributions to Qinghai's local economic development and industrial restructuring, but also serves as the Yellow River Company. During the five-year period, the foundation for building a tens of kilowatt-class clean energy base in Hainan Prefecture was laid. Li Hui told reporters to create a multi-energy complementary power generation comprehensive base to build a comprehensive energy-efficiency demonstration zone featuring energy and efficient use of resources in western China. It is not only conducive to accelerating the integration of Qinghai into the economic belt of the Silk Road, but also the green renewable energy needed for economic development. It is also the need to implement the “One Belt, One Road” strategic concept. It is necessary to promote energy production and consumption revolution and ensure national energy security. Major strategic significance and practical significance.