摘要
有源电力滤波器需要实时检测正序基波电压的相位，作为计算和补偿标准。主要研究了基于同步旋转坐标变换的三相软件锁相环原理，分析其连续和离散数学模型，从物理上解释低通滤波器作用原理，最后采用矩阵实验室的定点符号工具箱和Simulink进行仿真。理论推导和仿真验证了所提方法在电压波形畸变时仍实时有效检测出正序基波相位。
The positive line voltage phase is analyzed to be detected at real-time for active power filter （APF）. As a calculation and compensation standard, the three-phase lock loop software technology is studied based on synchronous rotating coordinate converting, as well as the continuous and dispersed mathematical models is analyzed in this paper. The alldigital phase tracing detecting method is proposed. The fixed point kit and simulation software package for numerical analysis and calculation software shall be simulated. The proposed method is proved by theory derivation and simulation to detect at real time and effective for positive line voltage phase in case of voltage wave distortion.
出处
《山西电力》
2010年第1期35-38,共4页
Shanxi Electric Power
关键词
旋转坐标变换
三相锁相环
有源电力滤波器
定点仿真
synchronic rotating coordinate change
lock phase loop
active power filter （APF） fixed point simulation
