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Methodology of algorithm implementation of a ACIM standard variable speed FOC motor drive incorporating an efficiency controller

Sergaki Eleftheria, Afentakis Nikolaos M., Stavrakakis Georgios, Piromalis Dimitris

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Περίληψη

The objective of this paper is to give an insight about the methodology of developing the algorithm for a DSP controlled motor drive which combines ordinary and innovative control schemes, in order to reduce complexity and development time. The methodology is based on dividing large tasks into smaller blocks and constructing the flow block diagram within the Incremental System Build (ISB) levels logic frame, by using re-useable s/w modules from Texas Instruments TM (TI TM) library, from the Target Support Package TM TC2000 library and by developing custom s/w modules in MATLAB® environment. The block algorithmic code is build up by interconnecting the various s/w modules in Simulink®. The native MATLAB® m-files are translated to ANSI®/ C code with Real-Time Workshop®. The Code Composer Studio TM (CCS) IDE for the C2000 series compiles and download the C code through a JTAG emulator to the Digital Spectrum eZdspF2812 TM . The proposed methodology is applied for the implementation of the algorithm of an innovative hybrid fuzzy efficiency control scheme which is incorporated to an ordinary Field Oriented Control (FOC) drive, in order to improve online the efficiency for various types of motor drives (i.e ACIM) for both steady state and transient state operation under load and speed variations.

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