According to foreign media reports, in 2010, 308 new offshore wind turbines were installed in Europe. Compared with 2009, offshore wind power installed capacity increased by 51%. European offshore wind power experienced a record increase. During the same period, the newly installed capacity of onshore wind power in Europe was 8.4 GW, a decrease of 13.9% from the previous year. The trend of wind power entering the sea has become increasingly evident in Europe.
On June 8, 2010, the first offshore wind farm in Asia, the Shanghai Donghai Bridge 3MW project, 34 offshore wind turbines were commissioned and all were put into operation. Beginning with “the first offshore wind farm outside Europeâ€, China Wind Power has also stepped into the sea and has attracted the attention of the global wind power industry.
The first wave of offshore wind power in China has opened. In such a big situation, the major players such as Goldwind, Huarui, and Xiangdian have different steps. The deep reasons behind this are thought-provoking.
In October 2010, the first round of the first round of offshore wind power concession tendering in China was announced. Huarui Wind Power successfully won the bid for Binhai and Sheyang, two offshore projects, totaling 600,000 kilowatts, which accounted for 60% of the total volume of tenders, but caused unexpected accidents in the industry. Yes, the second echelon of the whole Shanghai Electric Co., Ltd. can actually equalize with Goldwind Technology and win the last 20% of the share. The performance of Goldwind, known as the “China Wind Power Leaderâ€, is disappointing in the industry.
This also seems to confirm Eddie O'Connor, CEO of Mainstream Renewable Power, a company with which Goldwind has a relationship in the US market, discussing Goldwind: Goldwind has little interest in developing offshore wind power.
As the world's fourth-largest wind power equipment supplier, Goldwind Technology, in the global wind power industry is setting off to enter the wave of offshore wind power, hesitant, really puzzling.
It is understood that more than 85% of all wind turbines in the world are compact gears with increasing speed, especially in offshore units with higher technical, stability, and reliability requirements, all without exception adopting mature technology and reliability. Good technical solutions of this kind include 2 MW, 2.3 MW, 3 MW, 3.6 MW, and 5 MW models. Manufacturers include Vestas, Siemens, Repower, and Sinovel Wind Power, and all other major offshore wind power in the world. Unit manufacturer. So far, with the exception of a 1.5 MW test unit from Goldwind Technologies, there is no second direct-drive crew in the world. The Jinfeng unit has been operating at full power since November 8, 2007, and it has been three and a half years old. From the current progress of Goldwind's slow progress in offshore wind power, the operation of this unit is not optimistic. Is a direct-drive permanent magnet unit suitable for offshore wind turbines?
The industry at home and abroad has the same concern for direct-drive permanent magnets: At present, the cost of rare earth materials in permanent magnet units is very high, and the most commonly used neodymium-iron-boron rare earth permanent magnets are sensitive to temperature and have poor thermal stability. Once the ambient temperature Demagnetization will occur when the specified value is exceeded. When the permanent magnetic material is subjected to vibration, high temperature, and overload current, its magnetic performance may decrease or demagnetization may occur, which will reduce the performance of the permanent magnet motor and, in severe cases, damage the motor. The small-scale permanent-magnet wind power generators that were developed early have severe demagnetization, failure, and failure to generate electricity, and these problems have not been solved so far. In addition, rare earth materials in permanent magnetic materials are easily oxidized and produce electrochemical reactions. In the case of strong salt spray at sea, corrosion problems are difficult to solve. At the same time, due to the permanent magnetism of permanent magnetic materials, they cannot be maintained under field conditions. Therefore, if there is a problem, only the manufacturer can return to the site for maintenance. The site does not have maintainability and brings a great deal of hidden trouble to the operation. Moreover, from the perspective of operation and maintenance, the generators of direct-drive units are large in size and weight, and they are inconvenient to be replaced and maintained. Professional installation ships or large-scale floating cranes need to be ordered to complete the work, but the number of installed vessels and large-scale floating cranes currently available around the world can be counted. The ship schedule needs to be booked at least one year in advance, so the troubleshooting time cannot be guaranteed. Moreover, the cost of using large-scale offshore lifting vessels is extremely high, so the time and cost of maintenance are relatively high.
Recently, the chairman of Goldwind Technology, Wu Gang, said in an interview with the media that direct-drive permanent magnet technology has reduced the gear box, directly from the wind turbine into the permanent magnet generator for power generation, thus reducing hundreds of parts and components No maintenance is required during the 20 years of use, no loss, and high power generation efficiency. This high-profile statement really caught the eye.
According to industry insiders, some wind turbines in the Beijing Guanting wind farm built by Goldwind for the “Green Olympics†have returned to the production site for maintenance due to failures that resulted in the removal of multiple cabins since the installation.
Nowadays, the development of offshore wind power has set off a new wave in the world, and Goldwind seems to have found its passive position in this wave. The company announced in March this year that it plans to The funds of RMB 144.61 million raised by the A-shares and H-shares were transferred from the former Nanjing Megawatt Wind Turbine Industrialization Project to the Jiangsu Dafeng Offshore Wind Turbine R&D and Manufacturing Base to further increase the development of offshore wind power. The “following style†of the gold wind is not only passive but also weak: approved by the National Development and Reform Commission and the National Energy Administration, China’s only state-level offshore wind power technology equipment is responsible for the construction of China Wind Power’s responsibility. The R&D center has already started in 2009. Goldwind has fallen behind one person in terms of technology, scientific research, and medium and long-term strategies.
According to news reports, the first prototype of the gearbox and generator independently developed by Guodian United Power Co., Ltd. was successfully commissioned by the Guodian Wind Group Jiamusi Baoshan Wind Farm. The company’s 6MW offshore unit is also undergoing research and development. According to data from MakeConsulting consultancy based in Denmark, the market share of Guodian United Power in 2010 has already ranked among the top ten wind power equipment manufacturers in the world.
In the upsurge of China’s surging offshore wind power, various companies’ technological route choices, strategic tactics, and development will have a significant impact on their own status. The current gap between companies has gradually widened, and the future industry development tide The undercurrent has become increasingly apparent.
On June 8, 2010, the first offshore wind farm in Asia, the Shanghai Donghai Bridge 3MW project, 34 offshore wind turbines were commissioned and all were put into operation. Beginning with “the first offshore wind farm outside Europeâ€, China Wind Power has also stepped into the sea and has attracted the attention of the global wind power industry.
The first wave of offshore wind power in China has opened. In such a big situation, the major players such as Goldwind, Huarui, and Xiangdian have different steps. The deep reasons behind this are thought-provoking.
In October 2010, the first round of the first round of offshore wind power concession tendering in China was announced. Huarui Wind Power successfully won the bid for Binhai and Sheyang, two offshore projects, totaling 600,000 kilowatts, which accounted for 60% of the total volume of tenders, but caused unexpected accidents in the industry. Yes, the second echelon of the whole Shanghai Electric Co., Ltd. can actually equalize with Goldwind Technology and win the last 20% of the share. The performance of Goldwind, known as the “China Wind Power Leaderâ€, is disappointing in the industry.
This also seems to confirm Eddie O'Connor, CEO of Mainstream Renewable Power, a company with which Goldwind has a relationship in the US market, discussing Goldwind: Goldwind has little interest in developing offshore wind power.
As the world's fourth-largest wind power equipment supplier, Goldwind Technology, in the global wind power industry is setting off to enter the wave of offshore wind power, hesitant, really puzzling.
It is understood that more than 85% of all wind turbines in the world are compact gears with increasing speed, especially in offshore units with higher technical, stability, and reliability requirements, all without exception adopting mature technology and reliability. Good technical solutions of this kind include 2 MW, 2.3 MW, 3 MW, 3.6 MW, and 5 MW models. Manufacturers include Vestas, Siemens, Repower, and Sinovel Wind Power, and all other major offshore wind power in the world. Unit manufacturer. So far, with the exception of a 1.5 MW test unit from Goldwind Technologies, there is no second direct-drive crew in the world. The Jinfeng unit has been operating at full power since November 8, 2007, and it has been three and a half years old. From the current progress of Goldwind's slow progress in offshore wind power, the operation of this unit is not optimistic. Is a direct-drive permanent magnet unit suitable for offshore wind turbines?
The industry at home and abroad has the same concern for direct-drive permanent magnets: At present, the cost of rare earth materials in permanent magnet units is very high, and the most commonly used neodymium-iron-boron rare earth permanent magnets are sensitive to temperature and have poor thermal stability. Once the ambient temperature Demagnetization will occur when the specified value is exceeded. When the permanent magnetic material is subjected to vibration, high temperature, and overload current, its magnetic performance may decrease or demagnetization may occur, which will reduce the performance of the permanent magnet motor and, in severe cases, damage the motor. The small-scale permanent-magnet wind power generators that were developed early have severe demagnetization, failure, and failure to generate electricity, and these problems have not been solved so far. In addition, rare earth materials in permanent magnetic materials are easily oxidized and produce electrochemical reactions. In the case of strong salt spray at sea, corrosion problems are difficult to solve. At the same time, due to the permanent magnetism of permanent magnetic materials, they cannot be maintained under field conditions. Therefore, if there is a problem, only the manufacturer can return to the site for maintenance. The site does not have maintainability and brings a great deal of hidden trouble to the operation. Moreover, from the perspective of operation and maintenance, the generators of direct-drive units are large in size and weight, and they are inconvenient to be replaced and maintained. Professional installation ships or large-scale floating cranes need to be ordered to complete the work, but the number of installed vessels and large-scale floating cranes currently available around the world can be counted. The ship schedule needs to be booked at least one year in advance, so the troubleshooting time cannot be guaranteed. Moreover, the cost of using large-scale offshore lifting vessels is extremely high, so the time and cost of maintenance are relatively high.
Recently, the chairman of Goldwind Technology, Wu Gang, said in an interview with the media that direct-drive permanent magnet technology has reduced the gear box, directly from the wind turbine into the permanent magnet generator for power generation, thus reducing hundreds of parts and components No maintenance is required during the 20 years of use, no loss, and high power generation efficiency. This high-profile statement really caught the eye.
According to industry insiders, some wind turbines in the Beijing Guanting wind farm built by Goldwind for the “Green Olympics†have returned to the production site for maintenance due to failures that resulted in the removal of multiple cabins since the installation.
Nowadays, the development of offshore wind power has set off a new wave in the world, and Goldwind seems to have found its passive position in this wave. The company announced in March this year that it plans to The funds of RMB 144.61 million raised by the A-shares and H-shares were transferred from the former Nanjing Megawatt Wind Turbine Industrialization Project to the Jiangsu Dafeng Offshore Wind Turbine R&D and Manufacturing Base to further increase the development of offshore wind power. The “following style†of the gold wind is not only passive but also weak: approved by the National Development and Reform Commission and the National Energy Administration, China’s only state-level offshore wind power technology equipment is responsible for the construction of China Wind Power’s responsibility. The R&D center has already started in 2009. Goldwind has fallen behind one person in terms of technology, scientific research, and medium and long-term strategies.
According to news reports, the first prototype of the gearbox and generator independently developed by Guodian United Power Co., Ltd. was successfully commissioned by the Guodian Wind Group Jiamusi Baoshan Wind Farm. The company’s 6MW offshore unit is also undergoing research and development. According to data from MakeConsulting consultancy based in Denmark, the market share of Guodian United Power in 2010 has already ranked among the top ten wind power equipment manufacturers in the world.
In the upsurge of China’s surging offshore wind power, various companies’ technological route choices, strategic tactics, and development will have a significant impact on their own status. The current gap between companies has gradually widened, and the future industry development tide The undercurrent has become increasingly apparent.
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