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A Method to Place Meters in Active Low Voltage Distribution Networks using BPSO Algorithm
KTH, School of Electrical Engineering (EES), Electric power and energy systems.ORCID iD: 0000-0002-2014-0444
KTH, School of Electrical Engineering (EES), Electric power and energy systems.ORCID iD: 0000-0003-3946-7655
KTH, School of Electrical Engineering (EES), Electric power and energy systems.ORCID iD: 0000-0003-3014-5609
Department of Electrical, Electronic and Inf. Engineering University of Bologna.
2016 (English)Conference paper, Published paper (Refereed)
Abstract [en]

This paper proposes a method to be used by a DSOto optimally place sensors at MV/LV substation and some lowvoltage cable distribution cabinets. This method aims to improvethe estimation of the grid states at low voltage distributionnetworks. This method formulates a multi-objective optimizationproblem to determine the optimal meter placementconfiguration. This formulation minimizes the low voltage stateestimation error and the cost associated to a particular meterdeployment configuration. The method uses Binary ParticleSwarm Optimization (BPSO) to solve the optimization problemand it has been tested on a network based on the Cigré LVbenchmark grid. The simulation results show that the methodcan be applied to both situations where smart metermeasurements are available and situations where they are not. Inthe latter situation the measurements are replaced by pseudomeasurements,which represent meter readings by using smartmeter historical data and prediction models.

Place, publisher, year, edition, pages
2016.
Keywords [en]
Active Low Voltage Distribution Networks, BPSO, Meter Placement Problem, Multi-objective Optimization, Observability Analysis, State Estimation
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-180710ISI: 000382485600061Scopus ID: 2-s2.0-84986588599OAI: oai:DiVA.org:kth-180710DiVA, id: diva2:896357
Conference
19th Power Systems Computational Conference, PSCC, June 2016 in Genova, Italy.
Note

QC 20161017

Available from: 2016-01-21 Created: 2016-01-21 Last updated: 2017-11-06Bibliographically approved
In thesis
1. Cost-effective Communication and Control Architectures for Active Low Voltage Grids
Open this publication in new window or tab >>Cost-effective Communication and Control Architectures for Active Low Voltage Grids
2017 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The monitoring and control of low voltage distribution grids has historically been disregarded due to the unidirectional flow of power. However, nowadays the massive integration of distributed energy resources into distribution grids, such as solar photovoltaics, distributed storage, electric vehicles and demand response programs, presents some challenges. For instance, the unidirectional top-down power flow is being replaced by power flows in any direction: top-down and bottom-up. This paradigm shift adds extra regulatory, economic, and technical complexity for the Distribution System Operators (DSO). Thus to overcome the possible operational constraints, thermal limits, or voltage problems in the grid, an update of the existing electricity infrastructures is required. In response to this new situation, this thesis investigates the cost-effective communication and control architectures that are required for active low voltage grid monitoring and control applications, considering the regulatory constraints and the efficient utilization of the assets from a DSO’s perspective. The solutions include: i) optimal sensor placement configuration to perform low voltage state estimation, ii) optimal metering infrastructure designs for active low voltage monitoring applications, iii) coordinated control strategies to allow the integration of microgrid-like structures into the distribution grids, iv) optimal placement of actuators for operating the control strategies, v) a multiagent-based control solution for self-healing and feeder reconfiguration applications, and vi) a framework model and simulations to assess the reliability of the ICT infrastructure that enables the monitoring and control applications. As concluding remark, since the deployment of technology at low voltage grids is restricted to assets owned by the DSO, the operability of the grid is limited. This condition makes it so that the required communication and control enhancement solutions shall prioritize cost-effectiveness over comprehensiveness and complexity. Thus, the results from the presented studies show that it is essential to perform thorough cost-benefit analyses of the potential improvement solutions for each grid, because this will allow deploying the right technology only at the necessary locations.

Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2017. p. 69
Series
TRITA-EE, ISSN 1653-5146 ; 2017:160
Keywords
Active low voltage distribution grids, CAPEX & OPEX, communication & control architectures, cost-effectiveness, MPC, multiagent systems, photovoltaics, voltage control.
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Electrical Engineering
Identifiers
urn:nbn:se:kth:diva-217271 (URN)978-91-7729-588-4 (ISBN)
Public defence
2017-12-18, Kollegiesal, Brinellvägen 8, KTH-huset, floor 4, KTH Campus, Stockholm, 10:00 (English)
Opponent
Supervisors
Funder
SweGRIDS - Swedish Centre for Smart Grids and Energy Storage
Note

QC 20171106

Available from: 2017-11-06 Created: 2017-11-06 Last updated: 2017-11-28Bibliographically approved

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Babazadeh, DavoodNordström, Lars

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