Sketch-Based Optimisation for Distribution Grid Expansion Planning: User-driven research to accelerate distribution grid expansion planning at Alliander

Distribution Network Operators (DNOs) are confronted with a significant challenge to expand the capacity of the electricity distribution grid to facilitate the energy transition. Grid expansion planning for the distribution grid is a complex problem with many constraints and objectives. Earlier research has focused on metaheuristics such as...

A Mass Optimisation Study of the Lunar Zebro Chassis

A prototype lunar rover is in development by students of the TU Delft since 2017. It is a nanorover based on the terrestrial ZeBRo design, now named the Lunar Zebro. The Lunar Zebro is a prototype design as a proof of concept for nanorover capabilities. With a chassis of 200 by 140 by 60 millimeters, fitting on a sheet of A5 paper, the Lunar...

Modelling and Topology Optimisation of Medium Voltage Representative Networks for The Netherlands

The electrification of modern-day society keeps increasing and the demand for electricity grows along with it. Technologies like EVs and heat pumps are both part of the new types of demand, while PV systems and wind farms are meant to be our main new sources of generation. Contrary to traditional resources connected to the electricity network,...

Power flow control in a substation of a wind- and solar farm: Design of an Optimisation Unit Considering a System's Physical Boundaries and Technical Constraints

The goal of this graduation project was to design a state-of-the-art central farm controller. The designed central farm controller distinguishes itself from prevailing controllers by including a subsystem (the optimisation unit) that contributes to an improvement in power transmission effciency, decrease in maintenance costs and an increase in...

A Rapid Grid-Search Technique for KBO Exploration Trajectories

The Kuiper Belt is considered to be formed by remnants of the original Solar System, that is why exploration missions to that region are susceptible of having an enormous scientific impact. Nonetheless, it is far away from Earth, missions to KBO targets a significant challenge. Additionally, current methods to identify trajectories that...

Optimisation based design of an integrated energy system in the Netherlands: A case study at Picnic

As the share of solar and wind in the energy mix increases, the inherent intermittency of these energy sources pose a great challenge for the Dutch power grid. The occurrence of problems with congestion and balancing power supply and demand are becoming more common. Companies in the Netherlands show potential to implement means for smart use of...

Flexibility from Batteries at End-User Level: Implications for Distribution Grids

EU carbon emission targets related to climate change has set in motion a process of transition towards an environmentally clean and sustainable power system. A central focus on this process is the transition from fossil fuel based energy sources to clean Renewable Energy Sources (RES). However, the intermittency of RES (e.g. solar and wind)...

Evaluating the suitability of Narrowband Internet-of-Things (NB-IoT) for smart grids

Narrowband Internet-of-Things (NB-IoT), recently introduced by 3GPP, is a relevant Radio Access Technology (RAT) solution for deployment within smart grids, the electricity grids of the future, due to the need to provide low-cost connectivity to a large number of smart meters installed in households. Outage Restoration and Management (ORM), a...