Multi-channel zero conversion time power supply system for marine inertial navigation device

Abstract

The invention discloses a multi-channel zero conversion time power supply system for a marine inertial navigation device. The multi-channel zero conversion time power supply system for the marine inertial navigation device includes a marine electricity alternating current power source G1, a marine electricity direct current power source G2, an emergency power supply G3 and a navigation device inertial navigation system (INS); and also includes a voltage detection chip N1, a single chip N2, a Darlington array driver chip N3, and solid state relays SSR1, SSR2 and SSR3; the single chip N2 samplespower supply voltages of the marine electricity alternating current power source G1, the marine electricity direct current power source G2 and the emergency power supply G3 by the voltage detection chip N1, and supplies power to the navigation device INS according to a sequence that the marine electricity alternating current power source G1 supplies power first, the marine electricity direct current power source G2 supplies power subsequently, and the emergency power supply G3 supplies power finally. In the multi-channel zero conversion time power supply system for the marine inertial navigation device, the main, standby, and emergency power sources have a clear power supply sequence and high stability, thus switching with zero-switching time can be realized with high efficiency and powercan be supplied to the navigation device stably.

Description

technical field [0001] The invention relates to the field of navigation equipment power supply management, in particular to a multi-channel zero-transition time power supply system for naval inertial navigation equipment. Background technique [0002] Ship inertial navigation equipment is currently powered by ship power AC, ship power DC, inertial navigation self-contained battery or UPS power supply. At present, the conversion of the three generally adopts the conversion control of diodes in parallel, MOSFET discrete devices, and electromagnetic relays. However, the diode parallel power supply conversion method has a large voltage drop and low conversion power. When the standby or emergency power supply is too high, there will be a state where the main, backup, and emergency power supplies are not separated; the power supply conversion method of MOSFET discrete devices is not easy to adjust parameters. Easy to malfunction, high failure rate, low reliability; electromagneti...

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Problems solved by technology

[0003] In view of the above-mentioned deficiencies existing in the prior art, the purpose of the present invention is to solve the problem that the existing ship navigation equipment is prone to confusion in the use status of the main, standby and emergency power sources, the switching time of the main, standby and emergency power sources is long, the efficiency is low, and the switching process is easily affected. External interference causes malfunction, instability, and high failure rate. Provide a multi-channel zero-transition time power supply system for naval inertial navigation equipment. The main, standby, and emergency power supplies have a clear power supply sequence and high stability. The power supply can realize zero conversion time switching and high efficiency. At the same time, the main and standby power supply and switching process are not easily affected by external interference, and the stability is stronger, so that the navigation equipment can be stably powered

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