DSTATCOM Effect on the Adjustable Speed Drive Stability Boundaries

Author

Eldery, Mohamed A. ; El-Saadany, Ehab F. ; Salama, Magdy M A

Author_Institution

Dept. of Electr. & Comput. Eng., Waterloo Univ., Ont.

Volume

22

Issue

2

fYear

2007

fDate

4/1/2007 12:00:00 AM

Firstpage

1202

Lastpage

1209

Abstract

In this paper, the dynamic models for adjustable speed drive (ASD) and distribution-static compensator (DSTATCOM) are presented. An eigen domain approach to the transient response investigation is formulated by means of dqo variable in synchronously rotating reference frame to study the dynamic interactions between ASDs and DSTATCOM. Two inverter topologies of ASD, current source inverter and voltage source inverter, are included in the study as well as two control techniques of the DSTATCOM, namely voltage and current control. The study shows that the voltage control DSTATCOM improves the stability boundaries of the ASD utilizing either current or voltage source inverters, while the current control DSTATCOM has minor influence. In addition, the system dynamics show less sensitivity to the dc link capacitance for the voltage control DSTATCOM. These results are supported by analytical study of the characteristic equation of both the voltage and the current control DSTATCOM

Keywords

eigenvalues and eigenfunctions; electric current control; invertors; network topology; power distribution control; stability; static VAr compensators; transient response; variable speed drives; voltage control; DC link capacitance; DSTATCOM; adjustable speed drive stability boundary; current control; current source inverters; distribution static compensators; eigen domain approach; inverter topology; synchronous rotating reference frame; system dynamics; transient response; voltage control; voltage source inverters; Capacitors; Current control; Electric current control; Impedance; Induction motors; Inductors; Inverters; Stability; Variable speed drives; Voltage control; Adjustable speed drive (ASD); distribution network; distribution static compensator (DSTATCOM); induction motor; mitigation; model; power quality; stability;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/TPWRD.2007.893617

Filename

4141117