【摘要】 介绍了一种新的微机谐波测量分析装置 ,该装置给出准同步和锁相倍频两种方案供选择使用 .对电网参数进行采样时 ,可分别用锁相倍频方案或准同步方案 ,以达到互补 ,从而使测量误差变得最小 .同时 ,还介绍了该装置的硬件和软件 ,并结合实际对系统的误差进行了分析 .更多还原

【Abstract】 A new measuring and analyzing device of the power harmonics with microcomputer is concisely described. The device furnishes two schemes, phase lock multiple frequency synchronous sampling and quasi_synchronous sampling, to be applied. The two schemes are applied to sample power system parameter respectively so that the sampling data can achieve complementing each other and the error of the sampling data can be minimized. In addition, the hardware and software of the device are introduced and system errors are analyzed based on practice.更多还原