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Vega Garita, V.E. (author), Faizal Sofyan, Muhammad (author), Narayan, N.S. (author), Ramirez Elizondo, L.M. (author), Bauer, P. (author)
Given the complementary nature of photovoltaic (PV) generation and energy storage, the combination of a solar panel and a battery pack in one single device is proposed. To realize this concept, the PV Battery-Integrated Module (PBIM), it is fundamental to analyze the system architecture and energy management. This paper focuses on selecting a...
journal article 2018
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Vega Garita, V.E. (author), Ramirez Elizondo, L.M. (author), Narayan, N.S. (author), Bauer, P. (author)
Due to the variable nature of the photovoltaic generation, energy storage is imperative, and the combination of both in one device is appealing for more efficient and easy‐to‐use devices. Among the myriads of proposed approaches, there are multiple challenges to overcome to make these solutions realistic alternatives to current systems. This...
journal article 2018
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van der Blij, N.H. (author), Ramirez Elizondo, L.M. (author), Spaan, M.T.J. (author), Bauer, P. (author)
Changes in distribution grids pose significant challenges with respect to the control and management of these grids. Stability and decentralized control are vital to ensure the availability and accessibility of plug-and-play dc distribution grids that are (temporarily) without communication. Therefore, this paper presents guidelines for these...
journal article 2018
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Shekhar, A. (author), Ramirez Elizondo, L.M. (author), Bandyopadhyay, S. (author), Mackay, L.J. (author), Bauer, P. (author)
Low voltage dc distribution grids face issues associated with arc faults, aggravated by the absence of current zero crossing. The focus of this paper is to comprehensively develop a method of series arc fault detection at the load side power electronics, based on the electrode dependent initial voltage drop occurring at the arc initiation....
journal article 2018
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van der Meer, Dennis (author), Chandra Mouli, G.R. (author), Morales Espana, G. (author), Ramirez Elizondo, L.M. (author), Bauer, P. (author)
This paper presents the design of an energy management system (EMS) capable of forecasting photovoltaic (PV) power production and optimizing power flows between PV system, grid, and battery electric vehicles (BEVs) at the workplace. The aim is to minimize charging cost while reducing energy demand from the grid by increasing PV self...
journal article 2018
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Shekhar, A. (author), Ramirez Elizondo, L.M. (author), Feng, Xianyong (author), Kontos, E. (author), Bauer, P. (author)
While the scientific community recognizes the benefits of DC power transfer, the distribution network operators point out the practical and economic constraints in refurbishing the existing AC network at a medium-voltage level. Some apprehensions like reliability, cost of ownership, and safety in adopting a universal DC distribution may merit...
journal article 2018
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van der Blij, N.H. (author), Ramirez Elizondo, L.M. (author), Spaan, M.T.J. (author), Bauer, P. (author)
Employing bipolar dc distribution systems introduces the possibility of imbalance in the system. To analyze these systems it is crucial to create novel modelling techniques. This paper presents a method to decompose dc distribution systems into symmetrical components. The presented method simplifies the analysis of balanced, unbalanced, and...
journal article 2018
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Mackay, L.J. (author), Guarnotta, Robin (author), Dimou, Anastasios (author), Morales Espana, G. (author), Ramirez Elizondo, L.M. (author), Bauer, P. (author)
The emergence of distributed energy resources can lead to congestion in distribution grids. DC distribution grids are becoming more relevant as more sources and loads connected to the low voltage grid use dc. Bipolar dc distribution grids with asymmetric loading can experience partial congestion resulting in a nodal price difference between...
journal article 2018
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van der Blij, N.H. (author), Ramirez Elizondo, L.M. (author), Spaan, M.T.J. (author), Bauer, P. (author)
Many modelling methods for the analysis of dc distribution grids only consider monopolar configurations and do not allow for mutual couplings to be taken into account. The modelling method presented in this paper aims to deal with both of these issues. A state-space approach was chosen for its flexibility and computational speed. The derived...
journal article 2018
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Shekhar, A. (author), Feng, Xianyong (author), Gattozzi, Angelo (author), Hebner, Robert E. (author), Wardell, Douglas (author), Strank, Shannon (author), Rodrigo Mor, A. R. (author), Ramirez Elizondo, L.M. (author), Bauer, P. (author)
A scientific consensus is emerging on the benefits of direct current (DC) distribution in medium voltage (MV) power systems of ships and cities. At least 50% space savings and increased power transfer capacity are estimated with enhanced voltage DC operation of electric cables. The goal of this research is to contribute to developing the...
journal article 2017
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Mackay, L.J. (author), van der Blij, N.H. (author), Ramirez Elizondo, L.M. (author), Bauer, P. (author)
AbstractDue to an increasing number of power generation units and load devices operating with direct current (DC) at distribution level, there is a potential benefit of leading efforts toward building a DC distribution system. However, the implementation of DC distribution systems faces important challenges, including the market inertia of AC...
journal article 2017
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van der Blij, N.H. (author), Ramirez Elizondo, L.M. (author), Spaan, M.T.J. (author), Bauer, P. (author)
Instability caused by low inertia and constant power loads is a major challenge of DC distribution grids. Previous research uses oversimplified models or does not provide general rules for stability. Therefore, a comprehensive approach to analyze the stability of DC distribution systems is desired. This paper presents a method to algebraically...
journal article 2017
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Vega Garita, V.E. (author), Ramirez Elizondo, L.M. (author), Bauer, P. (author)
Solar-battery systems are still expensive, bulky, and space consuming. To tackle these issues, we propose a novel device that combines all the components of a solar-battery system in one device. This device might help reduce installation cost compared to the current solar-battery systems as well as provide a plug-and-play solution. However, this...
journal article 2017
document
Shekhar, A. (author), Kontos, E. (author), Ramirez Elizondo, L.M. (author), Rodrigo Mor, A. R. (author), Bauer, P. (author)
It is anticipated that with the thrust towards use of clean energy resources such as electric vehicles, future distribution grids will face a steep increase in power demand, forcing the utility operators to invest in enhancing the power delivering capacity of the grid infrastructure. It is identified that the critical 5–20 km medium voltage (MV)...
journal article 2017
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Sulaeman, Ilman (author), Vega Garita, V.E. (author), Chandra Mouli, G.R. (author), Narayan, N.S. (author), Ramirez Elizondo, L.M. (author), Bauer, P. (author)
The paper provides a comparison of four PV-battery architectures with dc and ac backbones, in terms of autarky, energy efficiency, battery size and reduction of annual electricity cost. The comparison is conducted based on the residential load and irradiation data from the Netherlands. The effect of different PV generation is also analyzed by...
conference paper 2016
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Vasan Ashok, Vijay (author), Chandra Mouli, G.R. (author), van der Burgt, Jos (author), Peýate Vera, Santiago (author), Huibers, Martijn (author), Ramirez Elizondo, L.M. (author), Bauer, P. (author)
EV Charging is expected to be a significant load on the grid in the future. But they can also be a part of the solution to grid violations. As the amount of renewable energy generation increases, there is a large amount of power flowing in the reverse direction in the distribution network, which is undesirable. To reduce this, EVs can charge at...
conference paper 2016
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Vega Garita, V.E. (author), Ramirez Elizondo, L.M. (author), Chandra Mouli, G.R. (author), Bauer, P. (author)
This paper focuses on the most common PV-storage architectures that are designed for residential applications and that incorporate storage devices like batteries, hydrogen systems, supercapacitors, and flywheels. The main motivations and a comparison of the advantages and disadvantages of the architectures are presented. Moreover, some common...
conference paper 2016
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Marafante, E (author), Mackay, L.J. (author), Hailu, T.G. (author), Chandra Mouli, G.R. (author), Ramirez Elizondo, L.M. (author), Bauer, P. (author)
DC microgrids can connect directly dc renewable energy sources with increasing amount of dc loads. In this paper it is looked for possible architectures for integrating PV panels into dc microgrids, by means of microconverter strings. Three topologies are considered, featuring only buck microconverters and only boost microconverters, since they...
conference paper 2015
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Mackay, L.J. (author), Hailu, T.G. (author), Chandra Mouli, G.R. (author), Ramirez Elizondo, L.M. (author), Ferreira, J.A. (author), Bauer, P. (author)
The traditional ac power system is challenged by the increased amount of distributed energy resources. Enormous changes and investments are necessary in order to achieve an ac smart grid capable of coping with the challenges introduced. In dc, solutions seem to be more straightforward since most of the distributed energy sources and most of the...
conference paper 2015
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