Marine three-phase 380V input high-power factor high-voltage purification power source device

Abstract

The invention discloses a marine three-phase 380V input high-power factor high-voltage purification power source device. The device comprises a three-phase single-switch PFC power unit, a double-tube forward DC-DC power conversion unit, a high-frequency transformer, a voltage multiplying and rectification power unit and an ARM-based monitoring unit. The marine three-phase 380V input high-power factor high-voltage purification power source device of the invention can generate adjustable, voltage-limited and current-limited 12kV direct-current high voltage output so as to purify air, the power factor of the three-phase input power source under a full-load operation condition can achieve 0.95 or more, and therefore, grid side input reactive power loss and harmonic interference can be effectively reduced; and when a short-circuit fault occurs at a high-voltage load side, the high-voltage purification power source device can automatically cut off protection in a microsecond-level time duration and automatically restart the protection after the short-circuit fault disappears; the high-voltage purification power source device can also monitor the operation status of each power unit in real time and transmit operating parameters, fault information and the like to an upper-level monitoring system through a CAN network and receive on-off commands sent by the upper-level monitoring system.

Description

technical field [0001] The invention relates to the technical field of a marine three-phase 380V input high-voltage electrostatic purification power supply, in particular to a marine three-phase 380V input high-power-factor high-voltage purification power supply device. Background technique [0002] The marine three-phase 380V input high-power factor high-voltage purification power supply device is a novel intelligent high-voltage purification power supply device, which has high input power factor, high power density, no low-frequency noise, low electromagnetic interference, high reliability, and is convenient for computer remote control. Control and other superior performance. [0003] In the field of three-phase 380V input high-voltage electrostatic purification of ships, traditional power supply technologies such as transformer low-frequency step-up rectification and high-frequency uncontrolled rectification are still mainly used. Although the technology is mature, it has...

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Problems solved by technology

[0003] In the field of three-phase 380V input high-voltage electrostatic purification of ships, traditional power supply technologies such as transformer low-frequency step-up rectification and high-frequency uncontrolled rectification are still mainly used. Although the technology is mature, it has a large volume and weight, low power density, and large low-frequency noise. The power factor is low, causing serious pollution to the power grid, and it does not meet the needs of the intelligent development of ship electrical systems

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