电测与仪表2016，Vol.53Issue(20)：62-66,99,6.
基于直接信号合成技术电能质量干扰发生器的设计
The design of power quality disturbance generator based on the direct signal synthesis technology
摘要
Abstract
In this paper , we design a new type of analog power quality disturbance generator based on the direct signal synthesis technology to solve the problems such as the disturbance simulator of the existing high performance power quality, is expensive which is not suitable for the use of general laboratory .The sine wave signal is produced by the direct frequency synthesis chip AD 9850 , and the signal in the power quality waveform shaping after the elliptical pas-sive low-pass filter .The functions of temporary over-voltage , short dips-voltage , voltage short interruption and voltage sag are realized by using single-chip microcomputer control D/A conversion chip DAC 7811 and electronic switch CD4053B.The first is amplified by using amplifier LM617 and the second is amplified by using the power amplifier PA89 A which is feautured with high output voltage and high speed , the technology of parallel triode is adopted to in-crease the output current of the system .Through the prototype test , the design can simulate a variety of power quality signal waveforms , relative to the economy and can achieve high power .关键词
电能质量/信号发生器/直接频率合成/椭圆滤波/功率放大Key words
power quality/signal generator/direct frequency synthesis/elliptic filter/power amplifier分类
信息技术与安全科学引用本文复制引用
张佳民,廖盼盼,洪轩,翟成强..基于直接信号合成技术电能质量干扰发生器的设计[J].电测与仪表,2016,53(20):62-66,99,6.基金项目
上海市电站自动化技术重点实验室项目 （）
