Multifunctional power distribution system and method

Abstract

The invention discloses a multifunctional power distribution system and method, and the system comprises a high-voltage pre-charging module, a motor controller power supply module, a high-voltage load power supply module, a low-voltage load power supply module, a power generation system controller, a commercial power supply module, and an insulation monitoring circuit module. The DC / DC module and the DC / AC module with the isolation function are adopted, so that the isolation of output and input can be realized, the electric shock risk of a using end is avoided, and the impact of power loop surge on control current can be effectively prevented; meanwhile, commercial power input is considered, and the two power supply systems can be switched with zero response time difference.

Description

technical field [0001] The invention belongs to the technical field of electric vehicle power supplies, and in particular relates to a multifunctional power supply distribution system and method. Background technique [0002] With the increasing popularity of vehicle-mounted mobile power generation systems, the use of high-power mobile power generation technology in vehicle-mounted systems has become increasingly popular, but different equipment has different requirements for power configurations, especially the harm of harmonics and ripples in power supplies has attracted widespread attention. It has great interference to radar system, control circuit, etc. [0003] Ripple is a clutter signal containing periodic and random components attached to the DC level. It refers to the peak-to-peak value of the AC voltage in the output voltage under the rated output voltage and current. Ripple has a relatively large impact on precision instruments and control circuits with high requ...

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Problems solved by technology

[0004] The mainstream power supply system in the market uses a set of power supplies to supply power to devices with different power requirements. Some devices need to control the ripple, and the other part does not need to control the ripple. The weight and volume are greatly increased; the power supply of a single power supply will also cause the mixed power supply of the power circuit and the control circuit, and the power generation system does not have an isolation circuit, and the control circuit personnel will directly contact it, posing a potential safety risk; the single power supply will cause voltage fluctuations, The inrush current at the generator start-up and motor stage causes the control circuit system to fail to work normally when the voltage is too low or the current is too high; a single power supply cannot generate power normally when the engine is stopped or in a fault state, and the parking state requires the engine not to stop to ensure power supply , so the comfort and environmental protection are poor

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