Control device and control method of modular multi-level high-voltage frequency converter

A modular multi-level, high-voltage inverter technology, applied in the direction of output power conversion devices, electrical components, AC power input to AC power output, etc., can solve the problem of DSP data acquisition interface resources and PWM output interface resources. Not meeting the control requirements of modular multi-level high-voltage inverters, incompetent for the control of modular multi-level high-voltage inverters, heavy tasks, etc.
CN105226959AInactive Publication Date: 2016-01-06ANHUI UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
ANHUI UNIV OF SCI & TECH
Publication Date
2016-01-06
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a control device and control method of a modular multi-level high-voltage frequency converter. According to the invention, a hierarchical control mode suitable for the modular multi-level high-voltage frequency converter is provided according to the special structure of the modular multi-level high-voltage frequency converter. The control device includes a monitoring layer, a control layer and a field layer; the monitoring layer includes a specific control upper computer designed through adopting LabVIEW; the control layer adopts an OMAP-L137 and an FPGA with powerful processing and computation functions; and the field layer includes a plurality of data acquisition boards and a plurality of sub control boards. Separate control modes are adopted for the rectification side and inversion side of the modular multi-level high-voltage frequency converter; and the quantity of DSP data acquisition interface resources and PWM output interface resources fully satisfies the control requirements of the modular multi-level high-voltage frequency converter.
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Description

technical field

[0001] The invention relates to the field of power electronics and automatic control, in particular to a control device and a control method of a modular multilevel high-voltage frequency converter. Background technique

[0002] High-voltage frequency converters are widely used in large-capacity high-voltage transmission equipment. For example, high-voltage frequency converters are used as frequency conversion and speed regulation equipment for high-power fans and motors, and are mainly used in industries such as electric power, metallurgy, mining, and municipal services that use more high-power motors. High-voltage motors can use high-voltage frequency converters to realize stepless speed regulation, meet the control requirements for motor speed regulation in the production process, improve product quality and output, and achieve the purpose of greatly saving energy and reducing consumption, thereby reducing energy costs to the greatest extent and improving ...

Claims

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