Agency: Cordis | Branch: FP7 | Program: CP | Phase: ENERGY.2013.7.1.1 | Award Amount: 4.33M | Year: 2013
The significant rise in distributed renewable energy sources has placed an enormous burden on the secure operation of the electrical grid, impacting both the transmission system operators (TSOs) and distribution system operators (DSOs). The massive increase of the intermittent DRES in low (LV) and medium (MV) networks has led to a bidirectional power flow which raises the urgent need for new operational and control strategies in order to maintain the ability of the system to provide the consumers with reliable supply of electricity at an acceptable power quality level. Technically, INCREASE will focus on how to manage renewable energy sources in LV and MV networks, to provide ancillary services (towards DSO, but also TSOs), in particular voltage control and the provision of reserve. INCREASE will investigate the regulatory framework, grid code structure and ancillary market mechanisms, and propose adjustments to facilitate successful provisioning of ancillary services that are necessary for the operation of the electricity grid, including flexible market products. INCREASE will enable DRES and loads to go beyond just exchanging power with the grid which will enable the DSO to evolve from a congestion manager to capacity manager. This will result in a more efficient exploitation of the current grid capacity, thus facilitating higher DRES penetration at reduced cost. Because of the more efficient use of the existing infrastructure, grid tariffs could decrease, potentially resulting in a lower cost for the consumers. The INCREASE simulation platform will enable the validation of the proposed solutions and provides the DSOs with a tool they can use to investigate the influence of DRES on their distribution network. The INCREASE solutions will also be validated (i) by lab tests, as well as (ii) in three field trials in the real-life operational distribution network of Stromnetz Steiermark in Austria, of Elektro Gorenjska in Slovenia and of Liander in the Netherlands.
Agency: Cordis | Branch: FP7 | Program: CP | Phase: ENERGY.2011.7.2-1 | Award Amount: 19.44M | Year: 2012
6 Transmission System Operators (Belgium, France, Greece, Norway, Portugal and United Kingdom) and CORESO, a TSO coordination centre, together with 13 RTD performers propose a 4 year R&D project to develop and to validate an open interoperable toolbox which will bring support, by 2015, to future operations of the pan-European electricity transmission network, thus favouring increased coordination/harmonisation of operating procedures among network operators. Under the coordination of RTE, new concepts, methods and tools are developed to define security limits of the pan European system and to quantify the distance between an operating point and its nearest security boundary: this requires building its most likely description and developing a risk based security assessment accounting for its dynamic behaviour. The chain of resulting tools meets 3 overarching functional goals: i) to provide a risk based security assessment accounting for uncertainties around the most likely state, for probabilities of contingencies and for corresponding preventive and corrective actions. ii) to construct more realistic states of any system (taking into account its dynamics) over different time frames (real-time, intraday, day ahead, etc.). iii) to assess system security using time domain simulations (with less approximation than when implementing current standard methods/tools). The prototype tool box is validated according to use cases of increasing complexity: static risk-based security approach at control zone level, dynamic security margins accounting for new power technologies (HVDC, PST, FACTS), use of data coming from off-line security screening rules into on-line security assessment, and finally security maps at pan European level. Dissemination is based on periodic workshops for a permanent user group of network operators invited to use modules to meet their own control zone needs and the ones of present or future coordination centres.
Agency: Cordis | Branch: FP7 | Program: MC-ITN | Phase: FP7-PEOPLE-2012-ITN | Award Amount: 3.93M | Year: 2013
A DC grid based on multi-terminal voltage-source converter is a newly emerging technology, which is particularly suitable for the connection of offshore wind farms. Multi-terminal DC grids will be the key technology for the European offshore SuperGrid. In this proposal, DC power flow, DC relaying protection, steady state operation, dynamic stability, fault-ride through capability, and impacts of DC grids on the operation of AC grids and power market will be studied. Systematic comparison of DC grid topologies and stability control strategies will be carried out. DC grids for offshore wind power transmission and onshore AC grid interconnection will be investigated. Operation and control will be evaluated using various simulation platforms and experimental test rigs. The achievements from the project will greatly contribute to integrating offshore wind power into the onshore AC grids in European countries and for the European Super Grid. The MEDOW consortium involves 11 partners (5 universities and 6 industrial organisations). Each institution in the consortium contributes various expertise on the manufacturing, design, operation, and control of multi-terminal DC grids. Three visiting scientists of outstanding international stature will be appointed to further strengthen the training capacity and quality of MEDOW. This project will recruit 12 early-stage researchers (ESRs) and 5 experienced researchers (ERs). These researchers will receive interdisciplinary and intersectoral trainings in different countries to improve career opportunities. Research results will be disseminated through publications, intellectual properties, and direct application in the industries. MEDOW offers a development path to researchers across Europe in the area of DC grids, in addition to fostering greater ties between industry and academia in this key development area.
Van Hertem D.,Catholic University of Leuven |
Rimez J.,Catholic University of Leuven |
Rimez J.,Elia System Operator |
Belmans R.,Catholic University of Leuven
IEEE Transactions on Smart Grid | Year: 2013
The electric power system in Europe is fundamentally changing, due to the liberalization of the energy market, the internationalization of electric power system operations, the shift towards renewable energy sources and the increased difficulty to install new transmission lines. The transmission system operators face new problems and they require new means to solve them. One option is to resort to the use of power flow controlling devices to manage the energy flows in the transmission system and to provide a secure operation under varying circumstances. Through the use of power flow controlling devices, the TSO gains a double advantage: investments in new (overhead) transmission lines can be avoided and it allows more flexible grid operations. This paper describes the Belgian case for different stages of the grid management: investment, planning, scheduling and operations using power flow controlling devices, including practical aspects. The Belgian case study comprises two technologies: the traditional phase shifting transformer and voltage source converter HVDC, each with their advantages and disadvantages. © 2010-2012 IEEE. Source
Cole S.,Catholic University of Leuven |
Belmans R.,Elia System Operator
IEEE Transactions on Power Systems | Year: 2011
In this paper, we present a new Matlab-based toolbox for power system analysis, called MatDyn. It is open-source software, and available for everyone to download. Its design philosophy is based on the well-known open-source Matlab toolbox MATPOWER, but its focus is transient stability analysis and time-domain simulation of power systems, instead of steady-state calculations. calculations. MatDyn's philosophy, design criteria, program structure, and implementation are discussed in detail. A trade-off is achieved between the flexibility of the program and readability of the code. MatDyn retains overall flexibility by, for instance, allowing userdefined models, and custom integration methods. The software is validated by comparing its results with those obtained by the commercial grade power system analysis package, PSS/E. Despite the fact that MatDyn is fairly new, it has already been extensively used in research and education. This paper reports interesting results obtained with MatDyn in recent research that would be hard to obtain using commercial software. © 2011 IEEE. Source