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See detailDYNAMIC LINE RATING AND AMPACITY FORECASTING AS THE KEYS TO OPTIMISE POWER LINE ASSETS WITH THE INTEGRATION OF RES. THE EUROPEAN PROJECT TWENTIES DEMONSTRATION INSIDE CENTRAL WESTERN EUROPE
Nguyen, Huu-Minh ULg; Schell, Peter; Lilien, Jean-Louis ULg

in Proceedings of Congrès International des Réseaux Electriques de Distribution (2013, June 12)

The general increase of Distributed & intermittent renewable Generation is pushing TSOs and DSOs to find innovative solutions to increase the capacity of their networks. Dynamic Line Rating (DLR) has ... [more ▼]

The general increase of Distributed & intermittent renewable Generation is pushing TSOs and DSOs to find innovative solutions to increase the capacity of their networks. Dynamic Line Rating (DLR) has proven to be a very promising solution to cope with this issue. However, few experiments so far have addressed ampacity forecasting, which is critical to allow the integration of DLR in the electricity market processes. To tackle this gap, we developed an algorithm based on real-time DLR measurements and weather forecasts, which provides ampacity forecasts up to two days ahead. This paper describes the results of the EU-funded TWENTIES Demo led in Belgium on two 150kV lines. Currently, the DLR system used provides a two-day ahead ampacity forecast with more than 10% average gain over static rating (dynamic gain forecast varying roughly between 0% and 30%) with 98% confidence. Operational gains allowed by this increase of flexibility are still being assessed. [less ▲]

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See detailLatest results in forecasting and DLR related to Twenties and other projects
Nguyen, Huu-Minh ULg; Doutreloup, Sébastien; Erpicum, Michel ULg et al

Conference (2013, March 05)

The goal of the meeting was to further (see Minutes of the WG3-DLR meeting which took place in Liège, Belgium, November 27th-28th 2012) investigate the “Dynamic Line Rating DLR” potential for the ... [more ▼]

The goal of the meeting was to further (see Minutes of the WG3-DLR meeting which took place in Liège, Belgium, November 27th-28th 2012) investigate the “Dynamic Line Rating DLR” potential for the efficient management of electric grids in view of the increasing share of intermittent renewable energies (wind & solar) and to proceed with the preparation of two posi-tion papers dedicated to 1) DLR forecasting and 2) DLR planning. It was also aimed at finaliz-ing the Terms of Reference for the establishment of a new Working Group within the Cigré B2 Study Committee. [less ▲]

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See detailOptimum weather forecasting for DLR : requirements
Nguyen, Huu-Minh ULg; Schell, Peter

Conference (2012, November 27)

The goal of the meeting was 1) to identify the research topics within weather forecasting (days) that need to be addressed to allow for an effective & reliable forecast of DLR and 2) to deter-mine the DLR ... [more ▼]

The goal of the meeting was 1) to identify the research topics within weather forecasting (days) that need to be addressed to allow for an effective & reliable forecast of DLR and 2) to deter-mine the DLR potential based on historical weather data, for planning DLR installations. Developing methods and tools to be able to determine the potential for DLR for specific loca-tions based on historical data and weather models would allow TSO/DSO to make much better decisions on where they could/should implement DLR to solve congestion and curtailment issues in their network. Increasing line electrical capacity on borders can mitigate market pres-sure and lower average generation prices thus increasing welfare. The aim of the WG3-DLR is to come up with a project proposal for these 2 topics that in-cludes: • A description of the obtainable results • An estimation of the R&D tasks required to attain these results • The timing and budget these tasks require Based on these project proposals and depending on their exact content, the proposals are in-tended to be used to either • Convince Transmission/Distribution Network Operators to fund the research for their own immediate needs, • Submit a proposal for EU funding of this research as follow-up to the currently running FP7 Twenties project, • Prepare a potential contribution to Cigré which should be presented at the Cigré B2 meeting due to take place in September in Auckland, NZ. [less ▲]

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See detailPower line dynamic rating: forecasting potential period of low wind speed is crucial
Nguyen, Huu-Minh ULg; Doutreloup, Sébastien; Erpicum, Michel ULg et al

Conference (2012, September)

The replacement and building of new electrical power lines (50 000 km in Europe) can’t cope with the growth of RES development in EU for the ten upcoming years. New solutions have to be found to manage ... [more ▼]

The replacement and building of new electrical power lines (50 000 km in Europe) can’t cope with the growth of RES development in EU for the ten upcoming years. New solutions have to be found to manage such power transmission needs. Dynamic Line Rating (DLR) systems are part of the global solution. They allow to increase the power line capacity by an average 20% over the static rating (which is defined as the maximum current-carrying capacity as designed). The ampacity or thermal rating, is calculated thanks to (i) sensors installed directly on the power line conductors, like Ampacimon, (ii) weather data, and (iii) standard thermal models (IEEE, CIGRE). However, in order to be fully effective and to allow an efficient use of assets, ampacity calculation in real-time is not enough; it has to be forecasted as well. Beyond 6h-forecast, weather forecasts are necessary to compute the line ampacity up to two days ahead, as needed by network operation. As wind convection has a major impact on conductor cooling, even low wind speeds (2m/s up to 5m/s) allow a huge ampacity increase (the actual rating can be doubled). Therefore, low wind speed forecast up to 2-days ahead finds a major application in dynamic rating of overhead transmission and distribution lines. [less ▲]

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See detailLARGE PENETRATION OF DISTRIBUTED PRODUCTIONS: DYNAMIC LINE RATING AND FLEXIBLE GENERATION, A MUST REGARDING INVESTMENT STRATEGY AND NETWORK RELIABILITY
Schell, Peter; Lilien, Jean-Louis ULg; Nguyen, Huu-Minh ULg et al

Conference (2012, May)

Dynamic Line Rating (DLR), a.k.a determining the maximum rating of overhead lines based on real-time weather parameters has the potential to significantly increase the power transport & distribution ... [more ▼]

Dynamic Line Rating (DLR), a.k.a determining the maximum rating of overhead lines based on real-time weather parameters has the potential to significantly increase the power transport & distribution capacity of the grid in favorable weather conditions. Combining active network management (curtailable generation) with DLR as trigger offers a solution out-there for the <br />system operator that combines technical feasibility, adequate implementation timing and economic viability. Flexible generation being already in use on the ELIA network, the potential benefits of using it in conjunction with DLR will be analyzed. [less ▲]

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See detailUsing Dynamic Line Rating to minimize curtailment of Wind power connected to rural power networks
Schell, Peter; LAMBIN, Jean-Jacques; Godard, Bertrand et al

in Proceedings of the 10th International Workshop on Large-Scale Integration of Wind Power into Power Systems (2011, October)

Elia, the Belgian TSO, is aiming to minimize curtailment of wind power plants connected to its 70kV rural network to the absolute minimum by using Dynamic Line Rating in combination with advanced flow ... [more ▼]

Elia, the Belgian TSO, is aiming to minimize curtailment of wind power plants connected to its 70kV rural network to the absolute minimum by using Dynamic Line Rating in combination with advanced flow simulation. This combination allows Elia to use its network assets to their real time maximum, without increasing risk and decreasing the security of supply. In situations like the one described below, where it’s possible to control the flow in near real-time via curtailment it becomes possible to use all of the extra capacity available via Dynamic Line Rating. On average more then 30% extra capacity is available but this figure can easily increase to 100% extra capacity as soon as there is more then 4 m/s wind perpendicular to the line [less ▲]

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See detailHow to use existing power lines to evacuate twice as much wind power ?
Nguyen, Huu-Minh ULg; lambin, jean-jacques; Lilien, Jean-Louis ULg

Poster (2011, March)

Detailed reference viewed: 51 (16 ULg)