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Chinese firm installs Finnish offshore drivetrain tech in bid to become leading wind power manufacturer

Haizhuang Windpower chooses The Switch drivetrain packages for offshore wind project to become a top wind power equipment manufacturer in China by 2015

The Switch technology has been adopted to operate reliably in harsh offshore wind environments

A Chinese wind firm has installed Finnish drive train technology in an offshore wind project in a bid to help it become one of the top three wind power equipment manufacturers in the BRIC country by 2015. The Switch, a Finland-based supplier of permanent magnet generator (PMG) and full-power converter (FPC) packages, has had its first 5MW high-speed drivetrains installed in the field in China for CSIC (Chongqing) Haizhuang Windpower Equipment Co (HZ Windpower), a Chinese wind power equipment manufacturer.
Mr. Tao Youchuan, Vice President of Haizhuang Windpower, said: “Our aim is to become one of the top three wind power equipment manufacturers in China by 2015. With such a successful outcome from the first 5MW deliveries, cooperation with The Switch has helped us take concrete steps towards reaching this goal. We look forward to long-term cooperation with The Switch as we move into ever more challenging wind turbine areas.”
The new Haizhuang PMG5000 generators and FPC5000 converters have been designed especially for Haizhuang by integrating the latest technology and the 6GW real-life wind power field experience of The Switch.

The optimised 5MW drivetrains, known as The Switch Drive, represent the highest power range that The Switch has commissioned to date. During testing phase, the generators and converters fulfilled all performance requirements.
The Switch PMGs and FPCs have been appropriately adopted to operate reliably in the harsh offshore environment for which they were specifically developed. The converter is installed inside the tower’s base floor, which is about 12m above sea level; the generator is installed in the nacelle.
Compared with a traditional double-fed induction generator (DFIG) drive train, The Switch PMG technology offers a higher annual energy production (AEP) rate and lower operations and maintenance costs. This makes it a more ideal solution for offshore use, where maintenance costs are much higher than with onshore applications.
Moreover, The Switch FPCs comply with all the latest international grid code requirements, even the latest Chinese regulations. They ensure low flicker, minimum electrical noise emission and a THD of less than 1.5 per cent, guaranteeing that high electricity quality is fed into the grid. 
The Switch CEO and President Jukka-Pekka Mäkinen, said: “The Switch Drive and PMG technology represent an obvious choice for reliable super-power offshore turbines, as they offer higher energy output, even at partial loads.”

The news from Haizhuang Windpower follows other Chinese wind power companies selecting European technology to develop their wind projects in the BRIC country. This includes China Guangdong Nuclear Wind Energy, which chose Spanish wind firm Gamesa to supply 49.3MW of its wind turbines to build a wind farm in Shandong Province in December 2012.