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Debugging method of ship shore power supply power module

A technology of power module and shore power supply, which is applied in the direction of output power conversion device, AC power input conversion to AC power output, electrical components, etc., which can solve problems such as hidden safety hazards, difficult analysis problems, superposition, etc., and achieve safe debugging, The effect of reducing the difficulty of debugging

Active Publication Date: 2019-05-31
BEIJING ELECTRIC POWER AUTOMATION EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Debugging method of ship shore power supply power module
  • Debugging method of ship shore power supply power module
  • Debugging method of ship shore power supply power module

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Embodiment Construction

[0018] The following will be described in detail with reference to the drawings and embodiments, so that those skilled in the art can better understand the present invention. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.

[0019] Symbols and label descriptions in the drawings: Udc-DC support capacitor voltage; GS1~GS6-rectifier circuit power switch tube; GL1~GL6-inverter circuit power switch tube; LS1-rectifier circuit LCL filter grid side inductance; LS2-rectifier Circuit LCL filter rectifier circuit side inductance; CS-rectifier circuit LCL filter filter capacitor; RS-rectifier circuit LCL filter damping resistor; LL1-inverter circuit LCL filter inverter circuit side inductance; LL2-inverter circuit LCL filter ship side inductance; CL-inverter circuit LCL filter filter capacitor; RL-inverter circuit LCL filter damping resistor; QF-circuit breaker; L-inductive load.

[0020] ...

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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 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M5/458
CPCH02M5/4585
Inventor 郭志超
Owner BEIJING ELECTRIC POWER AUTOMATION EQUIP CO LTD
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