【作者】 陈志洋； 邹云屏；

【Author】 Chen zhiyang~1, Zou yunping~2 (1. institute of high energy physics, Chinese academy of science Beijing 100039) (2. college of electrical and electronics engineering, huazhong university of science and technology wuhan 430074)

【机构】 中国科学院高能物理研究所； 华中科技大学电气与电子工程学院；

【摘要】 随着电力电子技术的飞速发展,电力系统谐波含量迅速上升。电力参数测量领域中真有效值和功率值测量变得更加困难。作为新一代微处理器芯片,DSP必然被用于电气参数测量领域,并带来电气参数测量技术的新发展。DSP具有高速时钟频率,快速的运算速度和更高的数据精度,深化了数字信号处理过程,得到更精确的测量结果。本文围绕基于DSP TMS320F240的电气参数测试仪的硬件结构和检测软件进行了深入详细的研究。文章给出了基于TMS320F240的电气参数测试仪硬件结构图,分析了本电气参数测试仪非理想采样条件下的理论误差,包括有效值测量误差和功率测量误差。检测软件是基于TMS320F240的电气参数测试仪的一个重要组成部分。文章分析了基于DSP的电气参数测试仪检测软件结构和软件各部分设计流程。更多还原

【Abstract】 Wth the development of power electronics technology, the harmonics of power system increases greatly. It brings more difficulty to the RMS and power measurement in the field of electrical parameter measurement. As a new kind of microprocessor, DSP is certain to be used in the field of electrical parameter measurement, and will cause new development in this field.There is high-speed clock, rapid instruction process speed and 16 bit data in DSP processor, which make it possible for complex digital process, more precisely calculate outcome. This paper describes hardware and software structure of electrical parameter meter. The block diagram of the meter is shown in the paper, the theory error, including RMS and power measurement error, is analyzed in detail.Supervisory program is an important part of the electrical parameter meter based on DSP. The construction and flowchart of the electrical parameter meter is analyzed also in this paper.更多还原