UNSPECIFIED (1997) PWM-controlled series compensation with low harmonic distortion. IEE PROCEEDINGS-GENERATION TRANSMISSION AND DISTRIBUTION, 144 (6). pp. 555-563. ISSN 1350-2360

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Abstract

The paper describes a pulse width modulation (PWM)-controlled series compensator with continuously variable reactance, employing simple PWM duty ratio control. Each phase of the compensator comprises a switched reactor and parallel capacitor. The duty ratio control gives a wide range of capacitive and inductive compensation. The harmonics created by the switched reactor have been analysed. The switched reactor and parallel capacitor have been simulated with a range of switching frequencies and duty ratios. With appropriate choice of capacitor and reactor, a scaled-down experimental model of the compensator has been simulated and constructed. The harmonics have been found to be small even with the switching frequency of the controlled turn-off switches as low as 400 Hz. A large step change in duty ratio from maximum capacitive compensation to inductive compensation shows the rapid dynamic response of the compensator with a fast settling time. This demonstrates that the proposed compensator should be considered as another useful FACTS controller for series compensation.

Item Type:	Journal Article
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering
Journal or Publication Title:	IEE PROCEEDINGS-GENERATION TRANSMISSION AND DISTRIBUTION
Publisher:	IEE-INST ELEC ENG
ISSN:	1350-2360
Date:	November 1997
Volume:	144
Number:	6
Number of Pages:	9
Page Range:	pp. 555-563
Publication Status:	Published
URI:	http://wrap.warwick.ac.uk/id/eprint/15731

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