基于瞬时对称分量法的三相功率源研究  

Research on Three-Phase Power Source Based on Instantaneous Symmetrical Component Method

作　　者：胡来林 孙永彦 丁艳 郭嘉成 HU Lailin;SUN Yongyan;DING Yan;GUO Jiacheng(Gansu Institute of Electrical Engineering,Lanzhou 733050,China;State Grid Gansu Economic Research Institute,Lanzhou 733050,China)

机构地区：[1]甘肃省电机工程学会,甘肃兰州733050 [2]国网甘肃经济技术研究院,甘肃兰州733050

出　　处：《自动化仪表》2020年第2期53-57,共5页Process Automation Instrumentation

摘　　要：合并单元等新型数字化设备与传统的电网测控设备在原理上有较大区别,其性能检测试验要求功率源输出多种波形信号。针对这一需求,基于功率放大器,研究了一种任意波形输出的程控功率源,输出的三相电压电流信号均可独立调节。针对大功率运算放大器输出不稳定的问题,提出了一种基于瞬时对称分量法的快速反馈控制方法,减小了处理器对数据存储量的需求。经过试验测试,研制的三相功率源具有稳定速度快、输出稳定和精度高的特点,准确度等级达0.05级,可作为标准功率源。Since the principle of new digital devices,such as merging unit is quite different from that of traditional power measurement and control,its performance test requires power source to output various waveform signals.A programmable power source with arbitrarily waveform output is developed based on the power amplifier,which the output three-phase voltage and current signals can be independently adjusted.Aiming at unstable output of large power operational amplifiers,a fast feedback control method based on instantaneous symmetrical component method is proposed,therefore,the processor's demand for data storage is reduced.The three-phase power source explained in this paper is,by means of the experiment,performed splendid with fast steady speed,stable output and high accuracy that reaches class 0.05.It can be used as a standard power source.

关 键 词：标准功率源 功率放大器 瞬时对称分量法 智能变电站 传感器 

分 类 号：TH183.3[机械工程—机械制造及自动化]