An ADMM-based Regularized State Estimation Scheme for the Distribution Grid
| Main Authors: | Tsitsimelis, Achilleas, Matamoros, Javier, Antón-Haro, Carles |
|---|---|
| Format: | Proceeding |
| Bahasa: | eng |
| Terbitan: |
, 2017
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| Online Access: |
https://zenodo.org/record/1155738 |
Daftar Isi:
- In this paper, we propose a novel state estimation (SE) scheme for the distribution grid. It exclusively leverages on measurements from μPMUs (micro Phasor Measurement Units) making it possible to operate at a faster time scale than conventional SE approaches based on legacy measurements. To circumvent observability issues, we realize that the voltage drop in adjacent buses is limited and, on that basis, we formulate a SE regularized weighted total variation estimation (WTVSE) problem. The problem can be iteratively solved by resorting to the so-called Alternating Direction Method of Multipliers (ADMM). Further, we provide closed-form expressions for the updates of the primal and dual variables. The performance of the proposed scheme is numerically assessed on a 95-bus distribution system for a number of realistic conditions of noise, load and photovoltaic generation profiles. A number of benchmarks are provided, as well.
- Grant numbers : This work was partially supported by the Catalan government under grant SGR2014-1567; the Spanish government under grant TEC2013-44591- P (INTENSYV).© 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.