The Research about Influence of Voltage Sag on High-Pressure Sodium Lamp

摘要

Analyzing the principle and characteristics of high-pressure sodium lamp (HPSL) systematically, and discussing the changes of its electrical parameters affected by voltage sag have great research value. In this paper, a voltage sag generator developed by ourselves has been used to establish a test platform, and the characteristic performance of the HPSL under different voltage sag amplitude and duration in the most sensitive phase angle has been tested. Then the sodium lamp voltage sensitivity curves based on test data are drawn, theses curves are more intuitive to reflect the work conditions of the sodium lamp under voltage sag. The research work in this paper can be used as important reference basis for following study.