Adopting smart meter events as key data for low-voltage network operation

The proliferation of residential photovoltaic (PV) prosumers leads to detrimental impacts on the low-voltage (LV) distribution network operation such as reverse power flow, voltage fluctuations and voltage imbalances. This is due to the fact that the strategies for the PV inverters are usually designed to obtain the maximum energy from the panels. The most recent approach to these issues involves new inverter-based solutions. This paper proposes a novel comprehensive control strategy for the power electronic converters associated with PV installations to improve the operational performance of a four-wire LV distribution network. The objectives are to try to balance the currents demanded by consumers and to compensate the reactive power demanded by them at the expense of the remaining converters’ capacity. The strategy is implemented in each consumer installation, constituting a decentralized or distributed control and allowing its practical implementation based on local measurements. The algorithms were tested, in a yearly simulation horizon, on a typical Portuguese LV network to verify the impact of the high integration of the renewable energy sources in the network and the effectiveness and applicability of the proposed approach.

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Bad data processing for low voltage state estimation systems based on smart meter data

CIRED Workshop 2016 ◽

10.1049/cp.2016.0647 ◽

2016 ◽

Cited By ~ 2

Author(s):

D. Waeresch ◽

R. Brandalik ◽

W.H. Wellssow ◽

J. Jordan ◽

R. Bischler ◽

...

Keyword(s):

Data Processing ◽

State Estimation ◽

Low Voltage ◽

Smart Meter ◽

Bad Data

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Smart Meter Traffic in a Real LV Distribution Network

Energies ◽

10.3390/en11051156 ◽

2018 ◽

Vol 11 (5) ◽

pp. 1156 ◽

Cited By ~ 5

Author(s):

Nikoleta Andreadou ◽

Evangelos Kotsakis ◽

Marcelo Masera

Keyword(s):

Distribution System ◽

Low Voltage ◽

Distribution Network ◽

Distribution Networks ◽

Smart Meter ◽

Advanced Metering Infrastructure ◽

Distribution Grid ◽

Message Size ◽

Real Distribution ◽

Advanced Metering

The modernization of the distribution grid requires a huge amount of data to be transmitted and handled by the network. The deployment of Advanced Metering Infrastructure systems results in an increased traffic generated by smart meters. In this work, we examine the smart meter traffic that needs to be accommodated by a real distribution system. Parameters such as the message size and the message transmission frequency are examined and their effect on traffic is showed. Limitations of the system are presented, such as the buffer capacity needs and the maximum message size that can be communicated. For this scope, we have used the parameters of a real distribution network, based on a survey at which the European Distribution System Operators (DSOs) have participated. For the smart meter traffic, we have used two popular specifications, namely the G3-PLC–“G3 Power Line communication” and PRIME–acronym for “PoweRline Intelligent Metering Evolution”, to simulate the characteristics of a system that is widely used in practice. The results can be an insight for further development of the Information and Communication Technology (ICT) systems that control and monitor the Low Voltage (LV) distribution grid. The paper presents an analysis towards identifying the needs of distribution networks with respect to telecommunication data as well as the main parameters that can affect the Inverse Fast Fourier Transform (IFFT) system performance. Identifying such parameters is consequently beneficial to designing more efficient ICT systems for Advanced Metering Infrastructure.

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