【摘要】 可编程谐波电流源作为电能质量治理装置的检验平台,其应用越来越广泛。这里在分析比较静止坐标系与旋转坐标系下电流跟踪两种电流控制方法的基础上,设计了基于旋转坐标系的电流分次控制的可编程谐波电流源,该方法能大大提高电流的输出精度。介绍了旋转坐标系分次控制可编程谐波电流源的控制原理,设计了以TMS320F2812型DSP和Cyclone II EP2C20型FPGA为核心的硬件平台,并在该平台上进行软件设计和实验,结果表明采用旋转坐标系分次控制可编程谐波电流源能达到非常高的输出电流精度,为设计高精度的可编程谐波电流源提供了依据。更多还原

【Abstract】 Programmable harmonics current source is drawing more and more attention recently,as a test bench for power quality controllers.Current tracking methods both in stationary reference frame and rotating reference frame are compared.With the basis,programmable harmonics current source is designed with separated order control in rotating reference frame,which gains current accuracy improvement.The control strategy is introduced in principle,and implemented in hard-ware with DSP TMS320F2812 and FPGA Cyclone II EP2C20.Experimental results verify the high degree of output current accuracy,which provides a realization evidence for high degree of accuracy programmable harmonics current source.更多还原