High-power medium voltage direct current power supply device and control method
A technology of DC power supply and power supply device, which is applied to the conversion device of output power, the conversion of AC power input to DC power output, electrical components, etc., can solve the problems of high equipment cost, poor power factor, uncontrollable output voltage, etc. The effect of strong anti-interference ability, reducing ripple factor and improving power factor
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[0044] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not used to limit the present invention.
[0045] Such as figure 1 As shown, a high-power medium-voltage DC power supply device includes an input switch cabinet, a rectifier transformer, a rectifier, and an output DC isolation cabinet.
[0046] The input voltage of the medium voltage DC power supply device is AC10.5kV, and the output voltage is DC±2kV.
[0047] The input switch cabinet is mainly composed of high-voltage circuit breakers, voltage sensors, current sensors, over-voltage protectors, comprehensive protection devices and other equipment. The input switch cabinet is mainly used for the input / removal of AC10.5kV power supply and real-time monitoring of AC10.5kV voltage lines It can automatically cut off AC10.5kV...
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