Real-time controller of universal frequency converter

A real-time controller and frequency converter technology, applied in the field of frequency converter control, can solve the problems affecting the real-time performance of the system and increase the cost, and achieve the effect of high control real-time performance and low cost
CN101795085AInactive Publication Date: 2010-08-04ZHUZHOU CSR TIMES ELECTRIC CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
ZHUZHOU CSR TIMES ELECTRIC CO LTD
Publication Date
2010-08-04
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention provides a real-time controller of a universal frequency converter, which comprises a first floating-point DSP, a first dual-port RAM and a microprocessor, wherein the microprocessor is used for sending control command information to the first floating-point DSP via the first dual-port RAM; the operation information of the first floating-point DSP is sent to an upper machine via the first dual-port RAM; the first floating-point DSP is used for reading the external voltage signal and current signal and carrying out algorithm operation according to the voltage signal, the current signal and the control command information, and PWM control pulse is generated by the operation result to realize rectifier control. The real-time controller of the universal frequency converter has higher real-time property and low cost.
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Description

Technical field

[0001] The invention relates to the technical field of frequency converter control, in particular to a real-time controller of a general frequency converter. Background technique

[0002] With the development of power electronic technology, general-purpose frequency converters, as a product of power electronic technology, have been widely used in various fields of the national economy, such as metallurgy, petroleum, and electric power.

[0003] Inverter is a control device that uses the on-off action of power semiconductor devices to transform industrial frequency power into another frequency electric energy. The universal inverter real-time controller is the most critical component of inverter control, which is directly related to the control quality and reliability of the inverter. The role of the universal inverter real-time controller is to perform a series of complex calculations based on the voltage and current signals collected by the system, generate PWM pu...

Claims

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