In this ENBARK research, we develop a new approach for the modelling, analysis and control of smart grids based on energy functions.

ENBARK: Energy-Based analysis and control of the grid

In this ENBARK research, we develop a new approach for the modelling, analysis and control of smart grids based on energy functions.
In this ENBARK research, we develop a new approach for the modelling, analysis and control of smart grids based on energy functions.

Goals of the ENBARK research project:

  1. the research focuses on dynamic pricing algorithms that formulate the maximization of the social welfare as the stabilization of an equilibrium point
  2. to deal with uncontrollable power demand and supply, and algebraic graph theory to take into account the topology of the grid
  • Thema: products and services
  • Onderwerp: SG: Markets

ENBARK: Dealing with uncertainty and markets

Although today’s technologies provide advanced devices for a more efficient exploitation of renewable energy resources, interfacing them to the grid still presents several challenges that demand for appropriate control strategies that guarantee stable operation.

Any control strategy for future smart grids cannot disregard economical considerations that allow producers and consumers to fairly share utilities and costs associated with the generation and consumption of energy.

Modelling, analysis and control

In this ENBARK research, we develop a new approach for the modelling, analysis and control of smart grids based on energy functions.

Since energy is the main quantity of interest, this is the most natural approach to deal with the problem.

The underlying mathematical framework is based on the theory of port-Hamiltonian systems*, output regulation and algebraic graph theory.

Dynamic pricing algorithms

Port-Hamiltonian systems lend themselves to the integration of dynamic pricing algorithms that allow to consider economical factors in the control of smart grids.

In fact, the research focuses on dynamic pricing algorithms that formulate the maximization of the social welfare as the stabilization of an equilibrium point.

This is a natural problem to formulate in the port-Hamiltonian framework.

On the other hand, output regulation theory allows us to deal with uncontrollable power demand and supply, and algebraic graph theory to take into account the topology of the grid.

The combination of economic and energy considerations in a unifying energy-based framework has no precedent in the literature and will lead to a breakthrough in how future smart grids will be operated.

More about the Port-Hamiltonian systems

The theory of port-Hamiltonian systems provides a framework for the geometric description of network models of physical systems. It turns out that port-based network models of physical systems immediately lend themselves to a Hamiltonian description.

While the usual geometric approach to Hamiltonian systems is based on the canonical symplectic structure of the phase space or on a Poisson structure that is obtained by (symmetry) reduction of the phase space, in the case of a port-Hamiltonian system the geometric structure derives from the interconnection of its sub-systems.

This motivates to consider Dirac structures instead of Poisson structures, since this notion enables one to define Hamiltonian systems with algebraic constraints.

As a result, any power-conserving interconnection of port-Hamiltonian systems again defines a port-Hamiltonian system.

The port-Hamiltonian description offers a systematic framework for analysis, control and simulation of complex physical systems, for lumped-parameter as well as for distributed-parameter models.

Consortium

University of Groningen, TU Delft, DNV GL, TenneT

Timeframe

August 2014 to August 2018.

Funded by

NWO and STW (URSES program)

Scientists

Reageer op dit artikel

Your email address will not be published. Required fields are marked *