谐波对电梯相序继电器的影响与治理  

Effects of Harmonics on Elevator Phase Sequence Relay and Harmonic Suppression

作　　者：叶兰兰 邹凯 廖宏 

机构地区：[1]武汉地铁运营有限公司

出　　处：《电气化铁道》2014年第5期21-24,共4页Electric Railway

摘　　要：以武汉地铁二七路主变电所供电范围内电梯的不正常运行情况为例,根据对电力系统各级电压电流的检测及电梯相序继电保护器动作条件的分析,确定谐波为导致相序继电保护器动作的原因,分析谐波源并提出了采用电容补偿器以抑制谐波的短期措施,取得了一定效果。二七路主变电所改造后,验证了电压畸变的程度取决于整流装置容量与电网容量的相对比值,改造后容量扩增大大提高了系统的可靠性和稳定性。Based on the abnormal operation of elevator in Wuhan Metro, the causes of abnormal operation is analyzed. According to the measurement of the voltage and current in power system and the condition of phase sequence relay protection, the harmonic is determined as the cause of relay action. The harmonic source is analyzed, with modest success capacitance compensator as short-term scheme for harmonic suppression is proposed. After capacity transformation of primary substation in Er-Qi road, the voltage distortion is determined by the ratio of rectifier capacity and power grid capacity which is verified, and the reliability and stability of system is greatly improved.

关 键 词：相序继电器 谐波 电容补偿器 

分 类 号：U223.63[交通运输工程—道路与铁道工程]