Debugging method of ship shore power supply power module

Abstract

The invention discloses a ship shore power supply power module debugging method, which adopts the following steps: control board analog quantity measurement; control board switch quantity measurement; drive signal measurement, wherein the signal high-low level, the signal frequency and the dead time in the drive state are consistent with the instructions or hardware and software settings; control board analog protection validity and protection operating time measurement, wherein the actual operating time of hardware and software protection should be consistent with the theoretical calculation and meet the design requirements; off-grid power generation voltage, which is divided into no-load off-grid voltage and on-load off-grid voltage; off-grid controlled current, wherein different output currents are set in the man-machine interface, and the alternating current output current amplitude should be close to the set value; and grid connection, wherein a power module is firstly subjected to voltage regulator grid connection, and grid connection is directly performed after the voltage regulator grid connection succeeds. The method modulates the debugging of the power module, only adds a part of algorithm or hardware in each step, reduces the difficulty of debugging, and ensures that the debugging is safe and reliable.

Description

technical field [0001] The invention relates to a shore power supply system, and more specifically, to a method for debugging a two-level power module of a ship shore power supply. Background technique [0002] The ship shore power supply adopts the power electronic technology static inverter power supply system, which converts the power supply on the shore different from the ship's power frequency into the ship's required frequency power supply. The ship shore power supply is mainly based on the common AC-DC voltage source frequency converter. The rectifier converts the AC power of a certain frequency into DC power, and then uses the inverter to convert the DC power into the AC power of the required frequency. After passing through the LCL filter Finally, a good AC voltage waveform is output for use by ship loads. The schematic diagram of ship shore power supply system is as follows: figure 1 . [0003] Ship shore power supply is divided into two parts: power conversion ...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: in the research and development stage, the debugging of the power module is arbitrarily, and some content may be missed, resulting in a large safety hazard in the later debugging, and various possibilities are superimposed, and it is very difficult to analyze the problem

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