Constantinos S. PsomopoulosUniversity of West Attica, Greece · Electrical and Electronics Engineering
Constantinos S. Psomopoulos
PhD Electrical & Computer Eng
About
222
Publications
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Introduction
I am Professor in Electrical and Electronics Engineering Department of University of West Attica, since March 2018. Until then I was Prof. in Electrical Engineering Dept of TEI Piraeus, Director of Electric Power Div. I am Vice President of WTERT – Greece & Research Associate in Earth Engineering Center Columbia University NY since 2011. My research activities and technical experience involve Eco Design of EuPs and Energy Efficiency, RES, Materials & Energy Recovery from wastes, Electromechanical Installations and Apparatus, Electrical Measurements & High Field Effects, High Voltage Engineering & Power Systems.
Additional affiliations
March 2018 - April 2020
June 2016 - present
March 2016 - March 2018
Education
January 1998 - March 2002
September 1992 - September 1997
Publications
Publications (222)
It is a fact that worldwide energy reserves are constantly decreasing. Simultaneously, climate change poses a strong threat to our planet’s future. Therefore, it is imperative to turn to sustainable and environmentally friendly solutions, such as renewable energy sources. One of the renewable energy sources is wind energy, which has important chara...
Nano‐modified electrical insulating fluids are a promising new family of insulating oils with enhanced characteristics. They can significantly improve many properties, such as fire point, breakdown voltage, partial discharge inception voltage and thermal conductivity etc. However, nanoparticles have raised concerns about the possible harm to human...
The objective of this study is to optimize a linear objective function that pertains to the obsolescence of home appliances in a household. The approach introduced is an ILP-based method that is both simple and adaptable. This optimization guarantees that the total energy consumption remains below a predetermined energy threshold, while also adheri...
Modern electricity networks are facing significant challenges in terms of power quality due to the increasing integration of power electronics. Even though low order harmonic control has largely been achieved, the emergence of supraharmonics is becoming a new cause for concern. This topic has gained interest in the past decade since power quality i...
Nowadays, we can observe various scenarios aiming to promote the decarbonization of the university campuses. Higher education institutions are expected to be pioneers in development and application of sustainable solutions. This paper presents innovative solutions as well as education of society. As many approaches to decarbonization of university...
Silicon carbide (SiC) MOSFETs tend to become one of the main switching elements in power electronics applications of medium- and high-power density. Usually, SiC MOSFETs are connected in parallel to increase power rating. Unfortunately, unequal current sharing between power devices occurs due to mismatches in the technical parameters between device...
The increasing global demand for energy- and resource-efficient, environmentally friendly products has led the European Union (EU) to develop a sustainable product policy, incorporating ecodesign legislation and energy labeling as effective tools for promoting energy efficiency and sustainability. Recent European energy policies, such as the Energy...
The increase in renewable energy sources (RESs) in distribution grids is a major driver for achieving green energy goals worldwide. However, RES power inverters affect power quality, increase power losses, and, in certain cases, may cause power interruptions due to harmonics, deterioration of the rate of change of frequency, and inability to rapidl...
The identification of harmonic generating loads and the assignation of responsibility for harmonic pollution is an important first step for harmonic control in modern power systems. In this paper, a previously introduced power multivector is examined as a possible tool for the identification of such loads. This representation of power is based on t...
Industry is an integral part of the economic activity of any country [...]
Population expansion and improving living standards, particularly in developed nations, have led to an increase in the usage of domestic electrical equipment, worldwide energy consumption, and CO2 emissions per capita. To limit the usage of non-reusable components and the amount of garbage that must be transferred at the end of a product’s life cyc...
The home appliance industry sector, which comprises devices used for cooking, cleaning, and storing food, is a multibillion-dollar industry with considerable global retail sales. This paper provides a comprehensive analysis of the current state of “3R” practices in the home appliances industry, focusing on the principles and processes of the initia...
Condition assessment for critical infrastructure is a key factor for the wellbeing of the modern human. Especially for the electricity network, specific components such as oil-immersed power transformers need to be monitored for their operating condition. Classic approaches for the condition assessment of oil-immersed power transformers have been p...
Electric power utilities are striving to address critical challenges such as energy consumption, material recovery, e-waste, procurement, and supplier working conditions. Currently, they are converting their old infrastructure into smart grids. The installation of smart meters is a key step in this process. Since a smart meter is an intelligent and...
Wastes are usually thought of as unwanted or unusable materials. Waste is any substance which is discarded after primary use, or considered worthless, defective, and of no use. The term is often subjective, as not every application has identical raw material requirements and sometimes even objectively inaccurate. A starting point towards managing w...
The causes of failure of critical component of the electrical power distribution network like the power transformers, has always attracted the interest of the scientific and technical community, since the failures of electrical transformers almost always have a great impact on the consumers, as they can lead to a black out situation. A reliable and...
In order to achieve high penetration of variable Renewable Energy Sources (vRES) in the power systems flexibility issues and needs inevitably arise. There are several flexibility options having a wide range of different technical and economic characteristics which meet the challenges posed by high penetration of vRES in the power systems. System op...
Polymer composites have been rapidly evolving for decades, with growing uses as technical components and structures in sectors such as aviation, aerospace, and energy. When they are built and in use, their physical and mechanical qualities and attributes might be deteriorated to various degrees. To avert catastrophic disasters, it is vital to detec...
This paper focuses on the possible materials that can be reclaimed, both beneficial and hazardous, at the end of life of the distribution transformers of energy networks. Large numbers of distribution transformers are decommissioned every year globally, with a steady increase because of the constantly expanding electricity grid. This amounts to pos...
At the end of 2019, European Union has reached 130 670 MW of cumulative installed photovoltaic panels (PV) capacity. Particularly high annual PV capacity in the E.U. was installed in 2010-2012, while during 2019 Spain presented the maximum annual percentage increment of 76,2% compared to 2018 installed capacity. As the PV market increases, so will...
A microgrid (MG) is a low-voltage (LV) or medium-voltage (MV) Distribution Network system (DN) with Distributed Generation Units (DGs) (e.g., PV systems, Wind Power Units, Fuel Cells, microturbines, Electric Vehicles, micro- Combined Heat and power systems, controllable smart loads, storage units, etc.). A LV MG can operate in a controlled and coor...
During the last few decades, the poor quality of produced electric power is a key factor that has affected the operation of critical electrical infrastructure such as high-voltage equipment. This type of equipment exhibits multiple different failures, which originate from the poor electric power quality. This phenomenon is basically due to the util...
Nowadays, medium- and high-power applications make use of silicon carbide (SiC) MOSFETs, and many times their parallelization is necessary. Unfortunately, this requirement causes an inevitable current unbalance between power devices, affecting the performance of power switches. Over the last decade, numerous studies have been conducted, proposing v...
The existing power systems as well as the smart grids utilize a number of advanced computing, networking, and measurement technologies that improve their planning and operation targeting to a full automated system in terms of monitoring and control. As power systems become more complicated, they face a combination of known and unknown vulnerabiliti...
The design of longer-lasting products, such as domestic electric appliances, is a key-stone approach of the circular economy to reduce the use of non-reusable materials and the number of wastes to be managed at the end of the product’s life as well as to extend it. The manufacturing of modern electric appliances includes the incorporation of printe...
This paper deals with a comprehensive survey on the topic of AC/DC & DC/DC converters for DC Motor Drives. A substantial number of different AC/DC and DC/DC topologies appropriate for DC motor drives are presented. This critical literature review brings out merits, demerits, and limitations besides giving the basic operating principles of various t...
Currently, solid waste management strategies in Havana are outdated. This paper aimed to select the most suitable alternative for integrating material recovery facilities (MRF) with waste-to-energy technologies in the city of Havana, Cuba. Seven scenarios were considered: combustion, gasification, and hydrothermal carbonization (HTC) with and witho...
Existing international standards address harmonic orders up to the 40th or 50th (at 2 or 2.5 kHz for a 50 Hz network). Modern converters effectively suppress components within that range, but they also tend to shift emission to higher frequencies. Recently reported cases of disturbances in modern distribution grids specifically attributed to suprah...
Applying the Renewable Energy Directive 2009/28/EC in Greece, Renewable Energy Sources (RES) share in gross final consumption (GFC) of energy should reach at least 18% by 2020. Subsequently, according to the Greek National Energy and Climate Plan (NECP), the RES share in GFC of energy must reach at least 35% by 2030 and the RES share in the GFC of...
Wastes contain large quantities of energy that can be extracted using a variety of methods. European Union has established a waste-to-energy initiative to minimize waste and increase recovery. Τhe EU Landfill Directive promotes more environmental friendly waste management options. Accordingly, EU member states are adopting mechanical-biological tre...
Waste of Electrical and Electronic Equipment (WEEE) is widely accepted to be the fastest growing waste stream in the industrialized world. Despite the fact that WEEE recycling presents several benefits for environment and economy, only a fraction of generated WEEE is actually recycled. Among the most important ones, though not the highest in volume...
A promising new family of insulating oils with enhanced characteristics, is Nano-modified electrical insulating fluids, which consist of a stable mixture of common insulating oil with nanoparticles, most often usually of metal oxides. Nanoparticles have raised concern about possible harm to human health and the ecosystems, but this is not the only...
The advancements in electricity production and distribution, as well as the growing consumption of electrical energy, have made electrical equipment a vital part of the technological infrastructure. On the other hand, the necessity for environmentally safe and sustainable solutions is another requirement for electrical transformers, the same as for...
The Driver–Pressure–State–Impact–Response (DPSIR) framework is applied for assessing the pressures and impacts on groundwater bodies of two Mediterranean sites (Megara and Oropos–Kalamos basins). The study areas present joint driving forces (drivers) and pressures. The main driving forces in the areas studied mainly include geology, agricultural ac...
BACKGROUND AND OBJECTIVES: Establishing a good sound waste management system for a community requires a comprehensive knowledge of the current status and issues involved in the present waste management system. This research was conducted to identify and prioritize waste management weaknesses in Saravan village of Guilan province, Iran. METHODS: Dat...
The present study introduces a Binary Integer Programming (BIP) method to minimize the number of wind turbines needed to be installed in a wind farm. The locations of wind turbines are selected in a virtual grid which is constructed considering a minimum distance between the wind turbines to avoid the wake effect. Additional equality constraints ar...
Our economies and societies are becoming more and more knowledge based which implies that increasing numbers of people need to be educated and trained on new subjects and processes. Thus, the reduction of the effort needed to design and prepare educational and training programmes that meet the needs of the society and the market is of paramount imp...
Due to the growing environmental pollution, methods are being sought to improve this situation. One of the main factors influencing this pollution is passenger vehicles. This paper will analyze a new approach to vehicles with in-wheel electric motors as well as the steering of all four wheels, which will increase the efficiency of the vehicles and...
According to Directive 2009/28/EC on the promotion of the use of energy from renewable sources, for Greece the target of RES penetration into gross final energy consumption in 2020 is set at 18%. The contribution of RES to energy consumption in Greece during the period 2006-2016 showed a significant increase. More specifically, the total contributi...
In medium and high-power applications, where Silicon Carbide (SiC) MOSFETs are usually used and their parallelization is quite often required, the performance of power switches is affected by an inevitable current unbalance which may occur not only during turn-on and turn-off transients but during on steady state, as well. Over the last decade, sev...
The European Union has set targets to reduce the greenhouse gases emissions in total energy consumption as a part of the securing the clean energy initiative and the efforts of carbon emissions reductions of 90%, compared to the 1990 ones, until 2050. The transport sector is particularly exacerbating the above problems. Focusing on their fight, Eur...
The penetration of high and low power electronics and distributed generation in electric power systems resulted in poor power
quality and lead to increased failure rates in high voltage equipment. Additionally, the quality of power measurements was
decreased as the metering devices cannot accurately operate in poor quality networks with higher orde...
The current paper presents an inclusive survey about the AC to DC and DC to DC converters for brushed DC Motor Drives. An essential number of different AC to DC and DC to DC topologies and control techniques, applied on the brushed DC motor drives are presented. This extensive literature review exposes advantages, disadvantages and limitations besi...
The market for power and distribution transformers is expected to grow globally and this will lead to anincrease in the market for electrical insulating oils, mainly due to crude oil reservoir and quality restrictions, their better safety properties. and pressure from environmental requirements and regulations. The biggest part of the transformer m...
Health monitoring techniques with regard to structural assessment has the attention of researchers worldwide owing to their potential in providing crucial information regarding structural damage and the reassurance of expected performance of critical infrastructures during service. These must operate with optimal system performance and against natu...
The European Directives, along with the general notion that wastes are resources, and the effort to reduce the environmental impact in urban environment from waste management, are the driving forces behind waste to energy philosophy. The most sustainable cities in the EU consider that their sustainability is also based on energy recovery from waste...
Wastewater is not a waste but a valuable resource that should be reused. Nevertheless, it should be devoid of physical, chemical, and microbiological parameters that can harm the consumer. Along with the multitude of possible pollutants found in wastewater treatment plants (WWTPs), emerging pollutants, such as Personal Care Products (PCPs), have ar...
Iran is the fourth biggest producer of crude oil and natural gas in the world. Meanwhile, this country is the largest CO2 emitter among the Middle East countries and 99% of energy in this country is produced from nonrenewable-based resources. Nevertheless, Iran has a promising potential to generate energy from its renewable resources such as biomas...
Arc flash events take place in electric power systems. Injuries from those events are very serious and their treatment, as well as the rehabilitation, is very difficult and expensive. Arc flash events also cause damage to infrastructure and to critical equipment. The impacts of the arc flash event should and can be prevented. The use of appropriate...
The high penetration of small scale renewable Energy Sources (RES) and high power electronics in the low voltage network has led to significant increase of the inverters and power electronics operating in the said networks. This equipment induces current and voltage harmonic distortions in the electrical network of orders quite higher than the ones...
Scientific studies have been published over the last decade in which several researchers have proposed numerous techniques for limiting the current unbalance between a number of discrete parallel Silicon Carbide (SiC) MOSFETs. This unbalance is unavoidable and should be limited in order to exploit all the advantages offered by SiC semiconductors ov...
European policy on reducing greenhouse gas emissions can be particularly supported by Electric Vehicles' market penetration in the following years. This paper overviews the so far penetration of the Electric Vehicles Technology in Europe and at the same time aims to provide an estimation about the future penetration based on appropriate prognostic...
The amount of Municipal Solid Waste (MSW) generated mostly in large urban centers is a major problem. For a modern society, the proper management and treatment of MSW is imperative and necessary. However, each community has organized and installed different waste treatment methods based on environmental, social and economic criteria. In this paper,...
The present paper presents two types of solar pavements, namely thermal and electrical collector pavements, as an example of innovative structure leading to sustainable road infrastructure. Studies have confirmed the feasibility of harvesting solar energy by applying innovation technologies on asphalt pavement.Thermal and electrical collector solar...
Energy production and preservation are among the top current priorities in the EU and
worldwide. This dictates the demand of ruling out the occurrence probability of a failure
so as to prevent environmental impacts, as well as output disruptions in energy sectors
which are diverse in nature, spanning from coal to nuclear. Due to increased energy
de...
The advancements is electricity production and distribution, as well as the growing consumption,
has made electrical equipment, a vital part of the technological infrastructure, the importance of
which is constantly growing. Two of the main challenges in electrical transformers, is the reduction
in power losses and the elongation of their service l...
A successful circular economy can only exist when it relies solely on renewable energy sources. The adoption of resilient business models and the consequent redesign of legislation on all sectors are essential to ensure sustainable economic growth. Wind energy can offer clean and renewable energy with a low environmental impact. Nevertheless, waste...
A successful circular economy can only exist when it relies solely on renewable energy sources. The adoption of resilient business models and the consequent redesign of legislation on all sectors are essential to ensure sustainable economic growth. Wind energy can offer clean and renewable energy with a low environmental impact. Nevertheless, waste...