Smart grid infrastructure

Smart grid infrastructure

Smart grid infrastructure
A consistent and stable electricity supply

Smart grid infrastructure

Investigate how recent advances in computational methods can be applied to the modeling of transients in power systems

  • Thema: virtual infrastructures
  • Onderwerp: IT: Smart Algorithms (HV / MD)

Transients in power systems

When an accident happens in a power grid systems, such as short circuit, collapse of a power grid tower etc. the voltages and currents in components of the networks change suddenly.

These phenomena are called transients in power systems.

Existing algorithms require large amounts of computational resources, which limits current industrial practice to small scale problems.

Goal

The aim of this PhD project is to investigate how recent advances in computational methods for the time integration for systems of differential equations can be applied to the modeling of transients in power systems.

Secure grid operation

Due to the changes in the electricity network, its deregulated market and the gradual increase in consumption and variety of participants, secure grid operation in future networks becomes increasingly complex.

In Work Package 4 of the European Umbrella project we study and implement risk-based system security concepts in order to develop a dedicated and innovative toolbox to support the grid security approach of transmission system operators (TSOs).

In Delft we will also focus on solving the power flow equations very efficiently.

Technology

The technology on which the smart grid infrastructure have been developed is depending on the following factors:

  1. Integrated Communications
    Communications developed previously have been done on incremental basis and not in a uniform manner and so the data is also not available in a uniform order although it has been updated regularly. Sub-station automation, demand response, automated distribution, systems to manage energy, wireless mesh networks and supervisory control and data acquisition (SCADA) are some of the areas which require improvement.
  2. Sensing and measurement
    Smart grid tech allows monitoring the health of the grid equipment along with its stability. It also informs regarding electricity theft and possible solutions to overcome it. Smart meter (advanced microprocessor meter), meter reading equipment, dynamic line rating, time-of-use and real-time pricing tools and digital protective relays are some of the technologies that are involved.
  3. Smart meters
    Using smart grid means employing digital meters instead of manual ones to record energy utilization. A communication path is developed between generation plants and electrical outlets. As per the customer choice these meters can be turned off during peak hours.
  4. Phasor measurement units (PMU)
    PMU’s are high speed sensors using which the quality of the current can be monitored. Phasor ideally represent the alternating current waveform which is found to be identical everywhere when viewed in real-time. A network of PMU which is known as wide area measurement system (WAMS) through which the regional and national energy situation can be supervised.
  5. Advanced control
    Disturbances in grid or outages can be monitored and solved using the automated power system. It is based on control systems or distributed intelligent agents, analytical tools depending on the software algorithms and lastly on operational applications which include automation of sub-station, demand response and many more.
  6. Smart power generation
    In this the amount of electricity to be utilized is matched with the amount of it being produced. The demand is met by the use of generators which can start and stop automatically depending on the load. This has been found to be of importance in order to maintain a consistent and stable electricity supply.

Contact

PhD students: Romain Thomas and Martijn de Jong
Supervisors: Kees Vuik and Lou van der Sluis

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