Supplementary Power Controllers for Modern VSC-HVDC transmission links: Control design and advanced modelling methods for point-to-point and multi-terminal VSC-HVDC networks

Multi-Agent Based Stochastic Dynamical Model to Measure Community Resilience

Emergency services and utilities need appropriate planning tools to analyze and improve infrastructure and community resilience to disasters. Recognized as a key metric of community resilience is the social well-being of a community during a disaster, which is made up of mental and physical social health. Other factors influencing community...

Reducing the need for communication in remote, natural waveform co-simulations of electrical power systems: An adaptive approach

Electrical power systems are becoming more interconnected and technologically diverse to accommodate ever increasing shares of non-dispatchable generation. These changes are imposing new requirements on the simulation of electrical power systems. One of these requirements is that simulations integrate models of different subsystems, developed by...

Stable Adaptation in Multi-Area Load Frequency Control under Dynamically-Changing Topologies

Multi-area load frequency control (LFC) selects and controls a few generators in each area of the power system in an effort to dampen inter-area frequency oscillations. To effectively dampen such oscillations, it is required to enhance and lower the control activity dynamically during operation, so as to adapt to changing circumstances....

Speeding Up AC Circuit Co-Simulations Through Selective Simulator Decoupling of Predictable States

Co-simulation has become increasingly popular as a tool for dealing with the unprecedented complexity of modern engineering systems, such as electrical power systems and the AC circuits that compose them. Co-simulation is useful when migrating the models of each subsystem to a single monolithic simulator is either impractical or impossible,...

Design and Application of Scalable Evolutionary Algorithms in Electricity Distribution Network Expansion Planning

In our modern daily life, many activities require electricity, for example, the usage of domestic appliances, manufacturing, communication, and transportation. It is therefore essential to maintain a reliable supply of electricity to ensure the operation of such activities. The electricity supply, in a large part, depends on the underlying...

Benefits of Coordinating Plug-In Electric Vehicles in Electric Power Systems: Through Market Prices and Use-of-System Network Charges

Both electric power systems and the transportation sector are essential constituents to modern life, enhancing social welfare, enabling economic prosperity and ultimately providing well-being to the people. However, to mitigate adverse climatological effects of emitting greenhouse gases, a rigorous de-carbonization of both industries has been...

Differential Protection Modeling of the Randstad 380 kV South Ring High Voltage Cable in ATP - EMTP

Modern transmission power networks consist mainly of High Voltage overhead lines, since the later have proven their high operational reliability. However, technological developments have made it possible to use High Voltage cables, not only in the distribution grids, but also at higher transmission voltage levels. Thus, more mixed configurations...

Coordinated Agent-Based Control for On-line Voltage Instability Prevention

Service interruptions have a significant impact on society and therefore the main objective of power system planning and operation is to ensure that they do not happen. Because voltage instability is one of the dynamic phenomena that may result in a system-wide blackout, this type of stability problem has been an important research topic for...

Effects Future Renewable Installations Will Have on System Synchronous and Synthetic Inertia

As wind and solar displace conventional generators, concerns are growing on the effect these asynchronous generators may have on such frequency stabilization services as primary and inertial response. An investigation into the system inertia of a future European energy scenario that integrates a high percentage of renewables was done using the...

Novel Topology of Saturated-core Fault Current Limiter

Increasing levels of fault currents in utility grids are expected to result in mechanical and thermal overstresses of different power system components. To cope with these increased levels, expensive upgrades and replacements of currently employed Circuit Breakers might be required in the near future. Fault Current Limiters (FCLs) are expected...

Digital metering of power components according to IEEE Standard 1459-2000 using the Newton-type algorithm

Grid support by power electronic converters of distributed generation units

An increasing number of small Distributed Generation (DG) units are connected to the grid. The introduction of DG causes several problems, which are mainly related to the differences between DG units and conventional generators. Four problems have been considered in this thesis: damping of harmonics, voltage control, the behaviour of DG units...

Multi-agent model predictive control for transportation networks: Serial versus parallel schemes

We consider the control of large-scale transportation networks, like road traffic networks, power distribution networks, water distribution networks, etc. Control of these networks is often not possible from a single point by a single intelligent control agent; instead control has to be performed using multiple intelligent agents. We consider...

A system look at electromechanical actuation for primary flight control