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Power Flow Analysis in MTDC-AC System—A New Approach

Padiyar, KR and Kalyanaraman, V (1995) Power Flow Analysis in MTDC-AC System—A New Approach. In: Electric Machines and Power Systems, 23 (1). pp. 37-54.

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This paper presents a new approach to the power flow analysis in steady state for multiterminal DC-AC systems. A flexible and practical choice of per unit system is used to formulate the DC network and converter equations. A converter is represented by Norton's equivalent of a current source in parallel with the commutation resistance. Unlike in previous literature, the DC network equations are used to derive the controller equations for the DC system using a subset of specifications. The specifications considered are current or power at all terminals except the slack terminal where the DC voltage is specified. The control equations are solved by Newton's method, using the current injections at the converter terminals as state variables. Further, a systematic approach to the handling of constraints is proposed by identifying the priorities in rescheduling of the specified variables. The methodology is illustrated by example of a 5 terminal DC system.

Item Type: Journal Article
Publication: Electric Machines and Power Systems
Publisher: Taylor and Francis Group
Additional Information: Copyright of this article belongs to Taylor and Francis Group.
Department/Centre: Division of Electrical Sciences > Electrical Engineering
Date Deposited: 02 Jun 2011 08:41
Last Modified: 02 Jun 2011 08:41
URI: http://eprints.iisc.ac.in/id/eprint/38148

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