High‐precision voltage‐measuring method using fast sampled data for electric power systems
High‐precision voltage‐measuring method using fast sampled data for electric power systems
复制标题
电力系统快速采样数据高精度电压测量方法
DOI：
10.1002/eej.4391140505
复制
发表时间：
1994
影响因子：
0.4
通讯作者：
K. Hirasawa
中科院分区：
文献类型：
--
作者：
C. Tomio;Mitsuyasu Kido;J. Kawakami;K. Yoneda;T. Kawai;K. Hirasawa
Control and protection equipment in power systems requires higher sensitivity and operational reliability to meet today's changing power system requirements. The voltage-measuring deviation requirement for advanced voltage and var control equipment is less than 0.1 percent under conditions of harmonic distortion in the voltage waveform and power-system frequency variation. Studies on digital signal processing suitable for electric power systems showed that these requirements are satisfied using fast sampling and very fast 32-bit floating point operations by a Digital Signal Processor (DSP).
This paper describes the design philosophy of a high-precision power system voltage-measuring method using fast sampled data. In addition, total voltage-measuring deviation characteristics under a combination of the techniques are described along with digital filter characteristics, frequency-measuring deviation characteristics, frequency variation versus gain-compensation characteristics of a digital filter, and peak value operating principles.
