Title :
Inverter control using output feedback for power compensating devices
Author :
Ghosh, Arindam ; Jindal, Amit K. ; Joshi, Avinash
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol., Kanpur, India
Abstract :
This paper presents an inverter control strategy using output feedback control. The controller is designed in discrete-time using a pole shifting law in the polynomial domain that radially shifts the open-loop system poles towards the origin. This type of inverter control is very useful for custom power applications in which the inverters have to inject unbalanced and/or harmonic voltage or current or both for neutralizing voltage or current imbalance or harmonics. The proposed controller design is tested on three different compensating type custom power devices: the Distribution Static Compensator (DSTATCOM), the Dynamic Voltage Restorer (DVR) and the Unified Power Quality Conditioner (UPQC). The simulations have been carried out using PSCAD/EMTDC.
Keywords :
controllers; feedback; invertors; poles and zeros; power distribution control; power system harmonics; power system simulation; DSTATCOM; DVR; Distribution Static Compensator; Dynamic Voltage Restorer; PSCAD/EMTDC; UPQC; Unified Power Quality Conditioner; controller; current imbalance; harmonic current; harmonic voltage; inverter control; output feedback control; pole shifting law; power compensating devices; simulations; unbalanced voltage; voltage imbalance; Control systems; Inverters; Open loop systems; Output feedback; Polynomials; Power quality; Power system harmonics; STATCOM; Testing; Voltage control;
Conference_Titel :
TENCON 2003. Conference on Convergent Technologies for the Asia-Pacific Region
Print_ISBN :
0-7803-8162-9
DOI :
10.1109/TENCON.2003.1273212