Fault Detection in Multilevel Converter STATCOM Using Voltage Magnitude Method

Author(s):

Jainy Bhatnagar , College of Technology and Engineering, Udaipur; Vikramaditya Dave, College of Technology and Engineering, Udaipur

Keywords:

Fault detection, MATLAB, multilevel converter, reliability, static synchronous compensator (STATCOM)

Abstract:

Static synchronous compensators (STATCOMs) with multilevel converters are being used extensively now-a-days in power system for line compensation. The main advantages of using STATCOMs with multilevel converter are (i) lower harmonic generation, (ii) production of higher voltages due to reduced stress on power electronic devices and (iii) reduced switching losses. But one major drawback of multilevel converters is that due to higher number of components the reliability of device decreases because with increase in number of devices the probability of occurrence of fault also increases. If fault occurs in any one switch then its fast detection is extremely necessary for maintaining system stability which is largely affected by line compensation by STATCOM. The aim of this paper is to detect occurrence of fault in multilevel converter STATCOM and identify the faulty switch. The proposed idea is exemplified by an eleven-level cascaded H - Bridge multilevel converter STATCOM.

Other Details:

Manuscript Id	:	RMSCRP012
Publication Date	:	05/04/2017
Page(s)	:	37-41

Download Article