Title :
Modelling simulation of a comprehensive compensation device in electric traction systems
Author :
Jing Liu ; Kangning Wang ; Ziyu Wang ; Jinhao Wang ; Gengyin Li
Author_Institution :
State Key Lab. of Alternate Electr. Power Syst. with Renewable Energy Sources, North China Electr. Power Univ., Beijing, China
Abstract :
This paper introduces the structure and detecting method of the comprehensive compensation device. Electric traction systems simulation model with the device is established under PSCAD/EMTDC environment to verify the compensation effect. After the improvement on instantaneous reactive power theory, the reactive power, harmonic and unbalance current can be detected simultaneously. Use of PID control in PWM can obtain the better compensation current tracking effect. Finally PSCAD simulations of electric traction systems based on power quality data from the detecting system are performed. The results verify that the whole system structure, current detection, control strategy and parameter calculation method are correct and feasible.
Keywords :
CAD; electric current control; power supply quality; reactive power control; three-term control; traction; PID control; PSCAD-EMTDC environment; PWM; comprehensive compensation device; current detection; electric traction system simulation model; harmonic current; parameter calculation method; power quality data; reactive power; reactive power theory; unbalance current; Electric traction systems; PSCAD; comprehensive compensation; instantaneous reactive power;
Conference_Titel :
Sustainable Power Generation and Supply (SUPERGEN 2012), International Conference on
Conference_Location :
Hangzhou
Electronic_ISBN :
978-1-84919-673-4
DOI :
10.1049/cp.2012.1799
