Retrofit of high voltage variable frequency speed regulating device for induced draft fan motor of 600MW unit

Abstract

Abstract:

Four units of induced draft fans of Hunan Huadian Changsha Power Generation Company’s two units of 600MW are open cycle type. Due to operation environment of large humidity deviation and high dust content, power unit failed frequently. After reformation of combination of ID fan and booster fan, capacity of ID was increased from 4000kW to 6000kW. Existing 4500kV·A high voltage variable frequency device would not satisfy the requirement. To reduce the investment, the operation mode of redundant parallel was indicated. Power supply system capacity was increased. After reformation, fractional energy savings achieved 30% to 50%. At the same time, power consumption cost and operational cost was significantly reduced.

Key words:

600MW unit, induced draft fan, motor, variable frequency device, power supply system, reformation of capacity expansion

HUANG Haibo.

Retrofit of high voltage variable frequency speed regulating device for induced draft fan motor of 600MW unit

[J]. Huadian Technology, 2017, 39(10): 63-65.

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Retrofit of high voltage variable frequency speed regulating device for induced draft fan motor of 600MW unit

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