"Polysilicon reduction power system" breaks the monopoly of foreign technology

The strategic polysilicon reduction power supply system project undertaken by Sichuan Yingjie Electric Co., Ltd. in 2014 adopted an integrated solution for the polysilicon reduction furnace power system and developed a higher accuracy and stability based on the original polysilicon reduction system. Better, lower cost silicon production, high-performance 36 pairs of rods, 40 pairs of rods, 48 ​​pairs of rods, and larger production capacity of polysilicon reduction power supply.

The project innovated the multi-layer power stacking control technology so that each group of power loops receives four kinds of voltage levels of power and stacked output power supplies. Multi-layer power stacking control method can effectively improve the efficiency of reducing power supply, reduce harmonics, and have obvious advantages in energy saving and consumption reduction.

The product has invested more than 37,761,000 yuan, added more than 300 sets of new production, added sales revenue of 130 million yuan, accounting for more than 80% of the domestic market share. It has been granted 1 invention patent and 3 utility model patents.

The implementation of this product has broken the foreign blockade and monopoly of high-purity silicon materials for the production of electrical power control equipment. As a high-end power supply equipment for the solar upstream industry - polysilicon material industry, it has a very important role in the development of high-purity polysilicon industry and solar energy industry. .

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