scholarly journals Multicriterial analyses and selection of the best option for revitalization and development of the southern part of Croatian 400 kV network and connection to the power system of Bosnia and Herzegovina

2020 ◽  
Vol 69 (4) ◽  
pp. 20-24
Author(s):  
Goran Majstorović ◽  
Davor Bajs ◽  
Lucija Krstanović ◽  
Damjan Međimorec ◽  
Danko Blažević ◽  
...  
Keyword(s):  
Power System ◽  
Bosnia And Herzegovina ◽  
Electricity Market ◽  
Large Scale ◽  
Biological Diversity ◽  
Technological Development ◽  
Governance Structure ◽  
Sensitivity Analyses ◽  
Operational Experience ◽  
Selection Of

The southern wing of the Croatian transmission network was constructed for 220 kV in the early 1960’s, with additional 400 kV reinforcement at the end of 1970’s. Its route of more than 200 km is quite demanding due to extreme climate, environmental specifics and related costs. However, operational experience during more than 50 years has been quite positive. Nowadays, at the end of its lifetime it is again extremely important to analyze and select the best option for network revitalization and development to serve the network users for the next 50 years, but in very different conditions of technological development, more restrictive environmental requirements, electricity market conditions and large scale RES integration. Moreover, special attention should be given to the potential opportunity and need to use this revitalization also for new interconnection to the power system of Bosnia and Herzegovina (BiH). Five main options have been initially selected as topology candidates for problem resolving. Detailed methodology and criteria for the selection of optimal option (revitalization and development scenario and topology) were developed and approved by all involved stakeholders. For selected option, based on comprehensive analyses and approved methodology , for further detailed analyses ( system reliability, technical design, investment, economics /CBA/ and environmental analyses) have been prepared, including assessment of its impact on transmission tariffs of each country. Sensitivity analyses to the most uncertain variables (investment costs and CO2 prices) were also performed. The environmental and social assessment was very demanding due to the complex governance structure and three legal frameworks to be respected (two countries, along with two entities in BiH). The Project impact was evaluated with respect to: air quality, water quality, waste management, noise, biological diversity, electromagnetic field, social measures and protected areas. This paper presents above mentioned analyses, findings and recommendations, as the most comprehensive analytical approach to the transmission line development that’s ever been applied in this region.

scholarly journals Potential utilization of renewable energy resources for electricity generation in Bosnia and Herzegovina

2005 ◽  
Vol 9 (3) ◽  
pp. 15-23 ◽  
Author(s):  
Fajik Begic ◽  
Anes Kazagic
Keyword(s):  
Renewable Energy ◽  
Power System ◽  
Bosnia And Herzegovina ◽  
Electricity Market ◽  
Renewable Resources ◽  
Electricity Generation ◽  
Power Plants ◽  
Energy Resources ◽  
Energy Utilization ◽  
Renewable Energy Resources

Along with the current processes of restructuring of Energy power system of Bosnia and Herzegovina, liberalization of the electricity market, and modernization of the existing power plants, Bosnia and Herzegovina must turn to the utilization of renewable resources in reason able dynamics as well. Respecting this policy, the initial Valuation of the potential of renewable erg resources in Bosnia and Herzegovina is per formed. The methodology of evaluation of wind energy utilization is presented in this paper, as well as some other aspects of utilization of the renewable energy resources in Bosnia and Herzegovina. Implementation of selected projects should improve sustainability of energy power production in Bosnia and Herzegovina, by reducing the total emission of carbon dioxide originated from energy power system of Bosnia and Herzegovina.

scholarly journals Voltage Coordination via Communication in Large-Scale Multi-Area Power Systems. Part I: Principal

2012 ◽  
Vol 433-440 ◽  
pp. 7175-7182
Author(s):  
Mohammad Moradzadeh ◽  
René Boel
Keyword(s):  
Power Systems ◽  
Power System ◽  
Electricity Market ◽  
Large Scale ◽  
Electric Power Systems ◽  
Coordination Control ◽  
Coordination Problem ◽  
Control Actions ◽  
System Operator

This two-part paper deals with the coordination of the control actions in a network of many interacting components, where each component is controlled by independent control agents. As a case study we consider voltage control in large electric power systems, where ever-increasing pressures from the liberalization and globalization of the electricity market has led to partitioning the power system into multiple areas each operated by an independent Transmission System Operator (TSO). Coordination of local control actions taken by those TSOs is a very challenging problem as poorly coordinated operation of TSOs may endanger the power system security by increasing the risk of blackouts. This coordination problem involves many other issues such as communication, abstraction and last but not least optimization. This first part of the paper is devoted to the principals of the coordination control, addressing some of those issues using as a case study the problem of coordination control for avoiding voltage collapse in large-scale multi-area power systems.

scholarly journals Voltage Coordination via Communication in Large-Scale Multi-Area Power Systems. Part II: Simulation Results

2012 ◽  
Vol 433-440 ◽  
pp. 7183-7189
Author(s):  
Mohammad Moradzadeh ◽  
René Boel
Keyword(s):  
Power Systems ◽  
Power System ◽  
Electricity Market ◽  
Large Scale ◽  
Test System ◽  
Distributed Model ◽  
Future Evolution ◽  
Distributed Model Predictive Control ◽  
Control Actions ◽  
Simulation Results

This two-part paper deals with the coordination of the control actions in a network of many interacting components, where each component is controlled by independent control agents. As a case study we consider voltage control in large electric power systems where ever-increasing pressures from the liberalization and globalization of the electricity market has led to partitioning the power system into multiple areas each operated by an independent Transmission System Operator (TSO). Coordination of local control actions taken by those TSOs is a very challenging problem as poorly coordinated operation of TSOs may endanger the power system security by increasing the risk of blackouts. This second part of the paper presents simulation results on a 12-bus 3-area test system, using the distributed model predictive control paradigm in order to design a coordinating model-based feedback controller. Coordination requires that each agent has some information on what the future evolution of its power flows to and from its neighbors will be. It will be shown that how the communication between agents can avoid voltage collapse in circumstances where classical uncoordinated controllers fail.

Reliability Management of the Power System in China: Present Status and Future Challenges

2014 ◽  
Vol 521 ◽  
pp. 480-484
Author(s):  
Guo Zhong Liu
Keyword(s):  
Power System ◽  
Electricity Market ◽  
System Reliability ◽  
Present Status ◽  
Large Scale ◽  
Power Transmission ◽  
Reliability Management ◽  
Future Challenges ◽  
Stochastic Characteristics ◽  
Electricity Reliability

With the developments of West-East power transmission projects, South-North power supply and the increased grid interconnections, in addition to the electricity market developments, the uncertain and stochastic characteristics of the power system operation are becoming more and more challenging and the risk of large scale blackout of the power system is increased remarkably. The electricity reliability management organization in China has been introduced. In this paper, present status of the power system reliability operation in China has been summarized and the new problems and challenges for the reliability management have been analyzed and discussed.

The Study on Electric Power System Based on Swarm Intelligence

2012 ◽  
Vol 442 ◽  
pp. 424-429 ◽  
Author(s):  
Ze Sheng Xu ◽  
Zhi Feng Ma ◽  
Xin Wen Di ◽  
Tao Luo ◽  
Hong Yun Guo ◽  
...  
Keyword(s):  
Power System ◽  
Swarm Intelligence ◽  
Large Scale ◽  
Optimization Problems ◽  
System Optimization ◽  
Electric Power System ◽  
Central Research ◽  
Centralized Control ◽  
Mathematical Basis ◽  
Selection Of

In this paper, we introduce the swarm intelligence computation and its applications in power system. Because swarm intelligence does not need any precondition of centralized control and global model, it is very suitable to solve large scale power system nonlinear optimization problems which are hard to establish effective formalized models and difficult to be solved by traditional methods. In order to apply swarm intelligence better in power system, we propose two central research directions in the future: (1) The mathematical basis of swarm intelligence is unsubstantial and it lacks profound and pervasive theoretical analysis, so we must analysis its convergence and selection of parameters, especially the parameter selection of large scale power system optimization problems. (2) Because swarm intelligence is internally parallel, we should realize it based on the parallel computation theory. This work will also be helpful for the real-time need of power system.

scholarly journals Towards the Integration of Modern Power Systems into a Cyber–Physical Framework

Energies ◽  
2020 ◽  
Vol 13 (9) ◽  
pp. 2169
Author(s):  
George C. Konstantopoulos ◽  
Antonio T. Alexandridis ◽  
Panos C. Papageorgiou
Keyword(s):  
Power Systems ◽  
Power System ◽  
Communication Networks ◽  
Electricity Market ◽  
Large Scale ◽  
Control Mechanisms ◽  
Research And Innovation ◽  
Main Challenge ◽  
Market Management ◽  
Social Environmental

The cyber–physical system (CPS) architecture provides a novel framework for analyzing and expanding research and innovation results that are essential in managing, controlling and operating complex, large scale, industrial systems under a holistic insight. Power systems constitute such characteristically large industrial structures. The main challenge in deploying a power system as a CPS lies on how to combine and incorporate multi-disciplinary, core, and advanced technologies into the specific for this case, social, environmental, economic and engineering aspects. In order to substantially contribute towards this target, in this paper, a specific CPS scheme that clearly describes how a dedicated cyber layer is deployed to manage and interact with comprehensive multiple physical layers, like those found in a large-scale modern power system architecture, is proposed. In particular, the measurement, communication, computation, control mechanisms, and tools installed at different hierarchical frames that are required to consider and modulate the social/environmental necessities, as well as the electricity market management, the regulation of the electric grid, and the power injection/absorption of the controlled main devices and distributed energy resources, are all incorporated in a common CPS framework. Furthermore, a methodology for investigating and analyzing the dynamics of different levels of the CPS architecture (including physical devices, electricity and communication networks to market, and environmental and social mechanisms) is provided together with the necessary modelling tools and assumptions made in order to close the loop between the physical and the cyber layers. An example of a real-world industrial micro-grid that describes the main aspects of the proposed CPS-based design for modern electricity grids is also presented at the end of the paper to further explain and visualize the proposed framework.

scholarly journals Large-scale phenotyping of 1,000 fungal strains for the degradation of non-natural, industrial compounds

2021 ◽  
Vol 4 (1) ◽  
Author(s):  
David Navarro ◽  
Delphine Chaduli ◽  
Sabine Taussac ◽  
Laurence Lesage-Meessen ◽  
Sacha Grisel ◽  
...  
Keyword(s):  
Phylogenetic Diversity ◽  
Large Scale ◽  
Biological Diversity ◽  
Critical Infrastructures ◽  
Synthetic Dyes ◽  
Fungal Strains ◽  
Biological Resource Centres ◽  
Functional Map ◽  
Industrial Compounds ◽  
Selection Of

AbstractFungal biotechnology is set to play a keystone role in the emerging bioeconomy, notably to address pollution issues arising from human activities. Because they preserve biological diversity, Biological Resource Centres are considered as critical infrastructures to support the development of biotechnological solutions. Here, we report the first large-scale phenotyping of more than 1,000 fungal strains with evaluation of their growth and degradation potential towards five industrial, human-designed and recalcitrant compounds, including two synthetic dyes, two lignocellulose-derived compounds and a synthetic plastic polymer. We draw a functional map over the phylogenetic diversity of Basidiomycota and Ascomycota, to guide the selection of fungal taxa to be tested for dedicated biotechnological applications. We evidence a functional diversity at all taxonomic ranks, including between strains of a same species. Beyond demonstrating the tremendous potential of filamentous fungi, our results pave the avenue for further functional exploration to solve the ever-growing issue of ecosystems pollution.

scholarly journals Zero Emission Building And Conversion Factors Between Electricity Consumption And Emissions Of Greenhouse Gases In A Long Term Perspective

2014 ◽  
Vol 13 (1) ◽  
pp. 12-19 ◽  
Author(s):  
Ingeborg Graabak ◽  
Bjørn Harald Bakken ◽  
Nicolai Feilberg
Keyword(s):  
Power System ◽  
Electricity Market ◽  
Large Scale ◽  
Conversion Factor ◽  
Electricity Consumption ◽  
Life Time ◽  
Market Model ◽  
Conversion Factors ◽  
Zero Emission

Abstract The CO2 emissions from a building’s power system will change over the life time of the building, and this need to be taken into account to verify whether a building is Zero Emission (ZEB) or not. This paper describes how conversion factors between electricity demand and emissions can be calculated for the European power system in a long term perspective through the application of a large scale electricity market model (EMPS). Examples of two types of factors are given: a conversion factor for average emissions per kWh for the whole European power system as well as a marginal factor for a specific region.

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