摘要
抽水蓄能电站励磁系统对电机定子端电压、电流、频率等电量采集的要求很高。交流采样实时性好、相位失真小,特别是随着大规模集成电路和高速数字信号处理器的迅猛发展,励磁系统交流采样原有的困难已逐步得到克服。文章主要介绍了一种基于交流采样的软件锁相环(SPLL)算法,通过此算法能快速准确地计算出发电机励磁系统所需的各电量,并通过大量实验证明了该算法的准确性和实用性,能够满足抽水蓄能电站励磁系统的要求。
Pumped Storage Power Station excitation system has high requirement in generator terminal voltage, current, frequency, power, etc. AC sampling real time, low phase distortion, Especially, with the rapid development of LSI and high-speed digital signal processor, AC sampling original difficulties of excitation system has been gradually overcame. The article describes a kind of AC sampling software phase-locked loop(SPLL) algorithm, this algorithm can quickly and accurately calculate all the necessary power parameters of generator excitation system. A large number of experiments show that the algorithm is accurate and practical, it can satisfy requirements of the pumped storage power station excitation system.
出处
《大电机技术》
北大核心
2014年第6期66-69,共4页
Large Electric Machine and Hydraulic Turbine
基金
国家科技支撑计划项目:大型抽水蓄能机组控制系统装置及系统集成技术研发(2011BAF03B03)
关键词
励磁系统
交流采样
软件锁相环
excitation system
AC sampling
software phase-locked loop(SPLL)
