Department Electrical Sustainable Energy (ESE)

Electrical Sustainable Energy is 1 of 6 departments that make up the EEMCS (Electrical Engineering, Mathematics and Computer Science) faculty. Hot topics within the research field of EPE are covered by 4 research groups.

All 4 groups work closely together on numerous research project within the field of Electrical Sustainable Energy while maintaining their identity and pursuing their individual scientific goals.

Electrical Power Systems

The Electrical Power Systems group (EPS) studies the electric power flow from various kinds of electric power generation to the consumers in transmission and distribution networks. The networks vary from large-scale networks, like the European transmission network and the Dutch 380 kV network, to small regional and domestic networks.

To study the transient, dynamic and steady state behaviour a profound and up to date knowledge of all system components, electrically and mechanically, is crucial in order to maintain stable power flows and adequate protection of the systems components.

Electrical Power Processing

The two basic functions of electrical engineering are information processing and power processing. The Power Electronics and Electrical Machines Group does research and education in the field of power processing.

Three cornerstones of research expertise exist:


Electromechanics involves the conversion of electrical energy to mechanical energy, a process which is reversible. Perhaps the most well known category of electromechanical energy conversion are electrical machines, which are used in a large diversity of applications ranging from small motors in disk drives of computers to generators in power stations. Electrical machines can also perform linear movement, such as in accurate positioning systems, mechanical switches and linear actuators.

Power Electronics

Electrical power can be controlled very accurately at a high efficiency by electronic means. High voltages and large currents can be switched in less than one thousandth of a second with modern semiconductor transistors. With the aid of powerful microprocessors voltages and currents are chopped and reconstructed into almost any wave shape imaginable. Power electronics makes it possible to control the speed and acceleration of the high speed trains in Europe at power levels up to 10MW, and at power levels of less than a watt it is used for the very accurate positioning system of laser discs.

Power Electromagnetics

Electromagnetic fields are used to heat treat or melt metals, sustain and control chemical reactions, generate light, survey the earth and propel projectiles at speeds higher than is possible with chemical explosions. Special devices are designed to fulfill these functions and are mostly intimately interfaced with power electronics. Electrical power processing involves manipulation of electromagnetic energy and a byproduct is electromagnetic pollution which may affect other electrical equipment in the vicinity. Electrical engineering is challenged to design better electromagnetic devices, not only in terms of their primary function but also in their ability to conform to international standards on electromagnetic interference and compatibility (EMI and EMC) .

High-Voltage Technology & Management

The HTM group is responsible for research and education in the field of high voltage technology and management. For full-scale research and testing of HV equipment the group owns a well-equiped high voltage laboratory. Research projects are undertaken in close cooperation with industry and research institutes from the Netherlands and from abroad.

HTM Research Area and Mission

Research in this programme is concerned with the performance of assets in the electricity supply chain, from generation plants, through transmission and distribution infrastructures to consumption. Application areas are either of energetic or non-energetic nature, e.g. power systems, food processing and medical treatment.

The mission of this programme is to enable and to search for better and new sustainable solutions in the area of high voltage technology by enhancing the scientific knowledge about emerging technologies and by creating empirical modelling of the overall future performance in new, existing and hybrid-intelligent applications.

Photo-Voltaic Materials and Devices

The program of the PVMD group builds up expertise in the design and in fabrication technology of solar cells and other devices based on thin semiconductor films. The current focus is on amorphous and nano-crystalline silicon films fabricated at low temperatures (< 200°C) using CVD techniques.

The group specializes in applying advanced measurement techniques in combination with computer modeling for determination of (opto-) electronic properties, such as the defect-state density, in thin disordered materials. The acquired expertise is used for the optimization of thin-film silicon solar cells and the development of novel concepts using nano-structured materials for future high-efficient solar cells. A new research field of the group is directed towards the development of electronic components on flexible plastic substrates using thin-film silicon technology.

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