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"Fei Shi" a number of wind generators to fill the gaps

10-05-25

A diameter of only 3 meters of wind generated electricity generators, for more than 500 families of ordinary households supply. Recently, Ningbo Development Zone, Italian businessmen invested enterprises Ningbofeishi Motor Technology Co., Ltd., developed a direct drive permanent magnet synchronous MW wind turbines and has a wind power plant in Italy into use. It is learned that the product identified in the Expert Group for this month, after the passage of the national project is expected to upgrade products.

Currently, the domestic low-speed direct drive permanent magnet synchronous MW wind turbines are rare, and only a few fans and more dependent on foreign manufacturers are also introducing the patented technology.

Ningbofeishi at the end of 2006, budding in the domestic market and gradually into the CNC machine tools, textile machinery, packaging machinery and plastic injection machine servo motor market segments and in the plastic machinery and corrugated packaging equipment, retaining its position as the market share the same first servo motor location. Last year, the company began development of direct drive permanent magnet servo motor based on the production technology of 1 MW direct drive permanent magnet synchronous generator.

According to Dong Yi Ningbofeishi Engineering Center introduced a MW direct drive permanent magnet synchronous generator successful R & D and manufacturing, not only in the field has made a breakthrough in the world's leading design and fill a number of domestic technology gaps.

"First, it uses the most precise direct drive structure design technology." Dong Yi said. The wind turbine wind turbine generators system to remove the common gearbox, direct drive motor for wind turbine rotor operation, eliminating gearbox failure caused by noise and high frequency, high maintenance costs, and thereby improve the fan running reliability.

Second, in addition to removing the motor becomes compact gearbox, the unique structure of the double air gap greatly reduces the generator size and weight. Allegedly, it is today the most compact motor structure to the smallest gap so that the conversion efficiency of generating more than 98%.

There is a unique modular design is the standard generator stator design. The modular concept is that each of stator module is built with separate power converter, so you can make a large motor manufacturing and installation easier.

"In addition, the MW-class small  wind turbine directly driven permanent magnet synchronous wind conditions in a bad situation can still be generating." Dong Yi said, "because the compact structure so that the stator rotor inertia becomes very low, making wind power machine with minimum start-up torque. a 1.0 megawatt generator starting torque is less than 900 Nm. "

It is reported that the motor has a wind power generators plant in Italy running. Recently, the domestic home to large wind power plants in the field test company, and the company signed a 3 MW direct drive permanent magnet synchronous wind turbine project letter of intent.

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