A Modular Pedigree High Power Marine Frequency Converter
A modular and high-power technology, applied in the direction of converting AC power input to AC power output, output power conversion devices, electrical components, etc., can solve the problem of lack of modularization and pedigree design concepts, and the lack of efficient and reasonable product lines. Problems such as poor product operation and maintainability, to achieve the effect of easy loading and unloading and maintenance, reducing system maintenance workload, and improving reliability and availability
Active Publication Date: 2020-12-11
CSSC SYST ENG RES INST
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Problems solved by technology
[0003] In addition, my country's existing high-power marine inverters are all customized products, lacking mature modular and genealogical design concepts, and have not formed an efficient and reasonable product line. The marketability is poor, and the product operation and maintenance are poor.
[0004] At present, my country's existing high-power marine frequency converters are all customized products, lacking mature modular and genealogical design concepts, and have not formed an efficient and reasonable product line, poor marketing, and poor product operation and maintenance
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[0027] A modular pedigree high-power marine frequency converter, including an incoming line unit, a rectifying unit, a braking unit, an inverter unit and an outgoing line unit, the incoming line unit is connected to the input AC power supply, the output end of the incoming line unit is connected to the rectifying unit input After rectification, the braking unit takes power from the DC bus, and after chopping, the output is connected to the braking resistor. The inverter unit and the braking unit are connected in parallel to the DC bus, and after being converted into AC voltage, it passes through the outlet unit. The output drive motor load is characterized in that there is also a main controller, which is respectively connected with the rectification unit, the inverter unit and the braking unit, and the main controller is responsible for monitoring and monitoring the rectification unit, the inverter unit and the braking unit. control;
[0028] The rectification unit includes a...
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Provided is a modular genealogical high-power marine frequency converter. The modular genealogical high-power marine frequency converter comprises a wire-inlet unit, a rectification unit, a braking unit, an inversion unit and a wire-outlet unit, the wire-inlet unit is connected with an input AC power supply, an output terminal of the wire-inlet unit is connected with an input terminal of the rectification unit, electricity is rectified and output to a DC bus, electricity taking of the braking unit is performed through the DC bus, the electricity is chopped and output and then connected with abraking resistor, the inversion unit and the braking unit are connected with the DC bus in parallel, and the electricity is inverted to AC voltage and output through the wire-outlet unit to drive a motor load. The modular genealogical high-power marine frequency converter is characterized in that the modular genealogical high-power marine frequency converter also comprises a main controller, the main controller is separately connected with the rectification unit, the inversion unit and the braking unit, and the main controller is used for monitoring and controlling the rectification unit, theinversion unit and the braking unit. According to the modular genealogical high-power marine frequency converter, external electrical interfaces all adopt standard plugging members and are exposed outof a panel so that the flexibility of installation, usage and maintenance of modules is greatly improved.
Description
technical field [0001] The invention is a modularized pedigree high-power marine frequency converter, which relates to a high-power marine frequency converter, in particular to a modularized pedigree high-power marine frequency converter. Background technique [0002] The ship integrated electric propulsion system has the advantages of low noise, good speed regulation performance, high efficiency, small volume and weight, and flexible layout. It is the future development direction of the ship power field. Around 240. As the core equipment of the electric propulsion system, the performance of the frequency converter is directly related to the working performance of the propulsion motor, and it is the key to ensure the efficient, reliable and high-performance operation of the entire ship power system. With the continuous development of high-power power electronics technology and variable frequency speed regulation technology, many developed countries have applied high-power f...
Claims
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IPC IPC(8): H02M5/45
CPCH02M5/45
Inventor 杜会卿杨杰苗春晖
Owner CSSC SYST ENG RES INST