Title :
Impact of the Low-frequency Interharmonics on the Transformation Behavior of Current Transformers
Author :
Li, Changyun ; Li, Qingmin ; Huang, Jinxin
Author_Institution :
Sch. of Electr. Eng., ShanDong Univ., Jinan, China
Abstract :
The presence of interharmonics may cause some negative effects on the power systems, such as malfunction of the remote control, CT transformation and relay systems. Based on a CT model established according to its operation principle and governing equations, a series of simulations are done through EMTP. From the results of simulations, two variables, the content and frequency of the interharmonic, that impact the performance of a CT can be found. Conclusions and suggestions are given finally.
Keywords :
power system harmonics; power transformers; CT model; CT transformation; EMTP; current transformers; low-frequency interharmonics; power systems; relay systems; remote control malfunction; transformation behavior; Control systems; Current transformers; EMTP; Equations; Frequency; Power system control; Power system modeling; Power system relaying; Power system simulation; Power systems;
Conference_Titel :
High Voltage Engineering and Application, 2008. ICHVE 2008. International Conference on
Conference_Location :
Chongqing
Print_ISBN :
978-1-4244-3823-5
Electronic_ISBN :
978-1-4244-2810-6
DOI :
10.1109/ICHVE.2008.4773971
