ABB builds strong wind power pioneer

Creating a wonderful world with electricity and efficiency can be regarded as the mission that ABB Group has been trying its best to implement. As a renewable and clean energy source, wind power has naturally become a focus area for ABB Group. In June, ABB's appearance of the Asian Wind Energy Conference at the National Convention Center in Beijing demonstrated its products and solutions that fully covered various applications in the wind power industry. The attitude of the wind power vanguard was fully revealed. To take this opportunity, the reporter conducted an exclusive interview with Mr. Ruiku, president of ABB High Voltage Motor Co., Ltd. and asked him to interpret this confident posture.

In fact, ABB has nearly 30 years of industry experience in the field of wind power. Combined with a full range of products, ABB has the ability to provide electrical products and solutions for all subsystems of wind turbines. According to Mr. Ruiku, ABB not only manufactures wind turbines to construct the electric drive chain of wind turbines, but also covers applications such as frequency converters, transmitters, wind power substations and even long-distance power transmissions. This can be said to involve all aspects of wind power generation. . ABB’s investment in the wind power business has also reached 1 billion U.S. dollars. From this, it can be seen that ABB pays attention to and believes in wind power generation.

Talking about the changing trend of wind power generation, Mr. Ruiku believes that ABB has been paying attention to the transformation and upgrading of wind power technology in recent years, and has made continuous progress in fan power and electric transmission methods. He said that in the late 1980s, the fan power was still limited to kilowatts, and today's products can undoubtedly deliver higher kilowatts, even ten times as much as before, which also causes many product concepts to be applied to fans. Change. With the development of technology, ABB has also been able to provide all major models from fixed-speed, doubly-fed generators to permanent magnet generators at this stage of wind turbines.

When talking about this, Mr. Ruiku focused on the permanent magnet technology that represents the state-of-the-art technology. The permanent magnet generator system adopts the design concept of the full frequency converter, which can achieve complete control under different grid conditions and provide the end user with high-quality and high-efficiency electric energy. According to Mr. Ruiku, ABB began researching permanent magnet synchronous generators in the 1980s and first applied it to the papermaking business. With the rapid development of wind power generation, ABB started to pay attention to this high efficiency. The application of high-reliability motors in wind power generation, and first developed the first permanent magnet synchronous generator for megawatt-class fans. At present, the power range of ABB permanent magnet synchronous wind generators has been widely covered by 1 megawatt, 1.5 megawatts, 2 megawatts, 2.5 megawatts, 3 megawatts, and even 5 megawatts, and ABB is still committed to research and development. High megawatt products.

Mr. Ruiku said that a prominent feature of the permanent magnet synchronous generator is that it does not require any gear transmission, and its greatest advantage is high efficiency and good current reliability, especially in the case of low wind speed and low speed, its power curve is relatively In the case of double-fed fans, there will be a great improvement. In addition to features such as non-excitation losses, high power density, and low rotor losses, permanent magnet synchronous motors have fewer components, which also improves overall reliability.

With the development of permanent magnet technology, the full-power converters that match them have naturally become the focus of attention in the industry. According to Mr. Ruiku, full-power converters can bring higher efficiency, higher currents, and improved reliability. He pointed out that wind power generators also have higher and higher requirements for power grids, and the use of full-power converters will greatly improve the impact of wind turbines on the power grid and help wind turbines respond to grid fluctuations and falls. Mr. Ruiku believes that the concept of full-power converters will receive more and more attention compared with traditional double-fed converters.

As a supplier of products and services for wind power, ABB has also been focusing on how to help users improve the efficiency of wind turbines. On this issue, Mr. Ruiku believes that to maximize profits for users, the first step is to improve the efficiency of wind turbines. This includes the application of new permanent magnet generators and the reduction of mechanical losses; on the other hand, It also pointed out that if the wind turbine stalls, it will lose its meaning to talk about efficiency, so while ensuring efficiency, we should also pay more attention to improving reliability, and on the basis of ensuring the normal operation of the wind turbine, optimize the wind turbine as much as possible. Energy efficiency of converters, transformers and other components.

We have seen that, thanks to these factors, today ABB has become a pioneer in the wind energy industry and has maintained long-term and stable cooperation with global mainstream wind turbine manufacturers such as Vestas, Gemesa and GE. When Mr. Ruiku looked into the Chinese wind power market, he said that China's wind power sector already has more than 70 complete machine manufacturers, as well as many companies that are gradually growing, which provides ABB with a great deal of room for cooperation. As observers, we are also convinced that ABB can maintain its pioneering position in the wind power industry in China with its rich industry experience and global manufacturing layout.