Inner cooling and ventilating system of large synchronous compensator

Abstract

The invention discloses an indoor cooling and ventilating system of a large synchronous compensator. The indoor cooling and ventilating system comprises an inner shell, an outer shell, a water-air cooler and cooling fans, wherein the cooling fans are arranged on the outer sides of the ends of a rotor; the water-air cooler is arranged under a stator; the inner shell is arranged at the periphery ofthe stator and is connected with the cooling fans and the water-air cooler to form an inner air area; the outer shell is arranged at the periphery of the inner air area and is connected with the innershell to form a sealed system; a part, close to the outer side, of an iron core of the stator is divided into a plurality of stator iron core sections along radial ventilation channels; the ventilation channels are formed in the iron core of the stator along a radial direction in a manner of passing through the iron core of the stator; an air inlet hole, an axial air channel and a radial hole areformed in the rotor. According to the indoor cooling and ventilating system of the large synchronous compensator, a sealed type full-air cooling manner is used for cooling; the indoor cooling and ventilating system is high in cooling efficiency, few in auxiliary machinery devices, simple and convenient to operate, low in fault rate and convenient to maintain.

Description

technical field [0001] The invention relates to a cooling and ventilation system, in particular to an internal cooling and ventilation system of a large-scale synchronous modulator. Background technique [0002] Synchronous camera, also known as synchronous compensation machine, is a reactive power compensation device that operates in the state of a motor without mechanical load itself, and only absorbs a small amount of active power from the power grid to power the motor itself. It can provide or absorb reactive power to the grid, improve power factor, reduce network loss, and play a better role in adjusting grid voltage and improving grid stability. [0003] Large-scale synchronous modulators will generate energy losses during operation, including losses in the stator core and windings, friction losses between the gas and the rotor, and excitation losses. This lost energy is converted into heat causing the synchronous camera to heat up. Therefore, a large-scale synchrono...

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Problems solved by technology

[0005] The purpose of the present invention is to provide an internal cooling and ventilation system for large synchronous condensers in view of the shortcomings of the prior art, such as the complex structure, cumbersome installation and operation, and high operating costs of the cooling system of large synchronous condensers

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