摘要
非线性负荷的大量使用是导致谐波问题的主要根源,并且极大地降低了电力系统的电能质量,谐波电流流经电力设备,会导致电力设备温度提高,造成绝缘损坏而影响电力设备的整体寿命。电力系统采取各种有效措施进行谐波抑制,在减少谐波源的谐波含量的同时,设计并投入合适的谐波滤波器到低压侧或负荷端。利用ETAP进行预先的谐波仿真分析可以根据实际情况辅助建立仿真模型,通过采集到的现实谐波数据来建立ETAP谐波数据库,进一步设计合适的滤波器,实现降低系统谐波畸变的目的。
The heavy use of non-linear loads is the main source of harmonic problems and greatly reduces the power quality of power systems.Harmonic current flowing through power equipment will cause the temperature of the equipment to increase,causing insulation damage and affecting the overall life of the equipment.The power system adopts various effective measures for harmonic suppression,including reducing the harmonic content of the harmonic source,as well as designing and putting in a suitable harmonic filter to the low-voltage side or load side.Using ETAP for pre-harmonic simulation analysis,a simulation model can be established according to the actual situation and the ETAP harmonic database can be established by the collected harmonic data,as well as further suitable filters can be designed to reduce the harmonic distortion of the system.
作者
崔庆伟
CUI Qingwei(CNOOC(China)Limited Tianjin Branch,Tianjin,300459 China)
出处
《科技创新导报》
2020年第21期73-75,共3页
Science and Technology Innovation Herald
