Performance and accuracy comparison of fixed and floating-point realizations of the Active Power Filter control algorithm

M. Pasko, M. Maciążek, D. Buła
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引用次数: 12

Abstract

The comparison of performance and accuracy of the active power filter control algorithm realizations has been presented in the paper. The worked out algorithms are based on dq synchronous frame control strategy. The following Texas Instruments digital signal controllers were used for the realization: fixed-point TMS320F2812 and floating-point TMS320F28335. The TMS320F28335 digital signal controller is the first floating-point controller in the C2000 family. It combines flexible control-specific interfaces and ease of use of an industrial microcontroller(MCU) with the processing power of DSP technology (up to 300 MFLOPS). Using of the floating-point digital signal processor allows improving accuracy of the computation, particularly in digital filtering (IIR low-pass filter) which has a direct influence on the quality of the generated current waveforms. The worked out algorithms have been practically verified on APF prototype which was built in the Institute of Industrial Electrical Engineering and Computer Science. The presented problems have been illustrated by laboratory results.
有源电力滤波器控制算法的固定和浮点实现的性能和精度比较
本文对各种有源电力滤波器控制算法实现的性能和精度进行了比较。所提出的算法是基于dq同步帧控制策略的。采用德州仪器数字信号控制器:定点TMS320F2812和浮点TMS320F28335实现。TMS320F28335数字信号控制器是C2000系列中的第一款浮点控制器。它结合了灵活的控制特定接口和易于使用的工业微控制器(MCU)与DSP技术的处理能力(高达300 MFLOPS)。使用浮点数字信号处理器可以提高计算的精度,特别是在数字滤波(IIR低通滤波器)中,它直接影响所产生的电流波形的质量。所提出的算法已在工业电气与计算机研究所研制的有源滤波器样机上进行了实际验证。所提出的问题已由实验室结果加以说明。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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