Comparative analysis of unit template, SRF and the modified SRF technique for DSTATCOM-based distribution system
by Aaqib Ahmad Qureshi; Abdul Hamid Bhat
International Journal of Power Electronics (IJPELEC), Vol. 16, No. 3, 2022

Abstract: This paper introduces a new hybrid control strategy called the modified synchronous reference frame theory (modified SRF theory) for power quality improvement of a DSTATCOM-based distribution system. This control strategy makes use of both synchronous reference frame (SRF) as well as unit template technique to generate the reference supply currents which are then compared with the sensed supply currents and fed to the hysteresis/PWM current controller to generate the necessary switching signals for switches of the voltage source converter (VSC) of the DSTATCOM for a three-phase, three-wire system. The proposed algorithm eliminates the need of a complex reverse Park's transformation and results in the most efficient harmonic diminution confirming to IEEE-519 standard. The proposed control algorithm is compared with the unit template-based algorithm and the SRF theory to mitigate a variety of problems such as low power factor, voltage regulation, current unbalance and harmonics in the system. The proposed algorithm is proved efficient and reliable when compared with conventional algorithms reported in the literature.

Online publication date: Sun, 18-Sep-2022

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Power Electronics (IJPELEC):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com