ADVANCED DISTRIBUTION SYSTEM STATE ESTIMATION IN MULTI‐AREA ARCHITECTURES
Abstract
Distribution system state estimation (DSSE) is a potentially powerful tool for the management and control of modern and future distribution networks. Distribution grids are usually characterized by a very large number of nodes and different voltage levels. Moreover, different portions of the system can be operated by different distribution system operators. In this context, multi-area approaches can be key tools for performing DSSE efficiently. This chapter presents state of the art, challenges, and novel approaches for multi-area state estimation (MASE) in distribution systems. In particular, a new methodology, based on a two-step procedure, is presented in detail. This procedure is designed to estimate accurately the status of a large-scale distribution network, relying on a distributed measurement system in a multi-area framework. Criteria for the division into sub-areas are presented along with the issues, requirements, and challenges of estimation steps. Benefits of the use of synchronized measurements obtained by phasor measurement units, PMUs, in terms of the accuracy and efficiency enhancements in the estimation results are presented and discussed.
Authors 4
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Affiliation as printed
Institute for Automation of Complex Power Systems, RWTH Aachen University, Aachen, Germany
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Affiliation as printed
Department of Electrical and Electronic Engineering, University of Cagliari, Cagliari, Italy
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Affiliation as printed
Institute for Automation of Complex Power Systems, RWTH Aachen University, Aachen, Germany
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Affiliation as printed
Department of Electrical and Electronic Engineering, University of Cagliari, Cagliari, Italy
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