节能用电设备在非正弦状态下的节电效率测量

On Testing the Efficiency of Economized Power of Power Economizing and Consuming Facilities in the Nonsinusoidal State

本文指出目前供电网络中由于用电设备的非线性以及广泛采用晶闸管控制技术,造成网络波形畸变相当严重,采用理想正弦条件下定标的仪器进行用电设备功率测量必然造成大的误差,不能真正反映设备耗能及节电情况,这种现象尚未引起人们的重视.本文根据作者前期所做的工作.介绍了一种采用模拟乘法器的测量方案.较好地解决了非正弦电量的测量.

How to test the efficiency of the economized power of power consuming facilities is a problem remaining unsolved.The non—sinusoidal wave of electric network and wide application of thyristor in controlling result in serious distortion of the net- work.To measure the power of electric device by instruments scaled under ideal sinu- soidel condition is sure to bring about great errors.In this paper,an effective method of testing the efficiency of the economized power is introduced.A simulation multiplier is used to measure nonsinusoidal signals more correctly.