Flexibility in Multi Energy Systems: Models and Metrics to Assess Future Energy Systems

The transition to sustainable energy iswell underway and is introducing changes on both sides of the electricity balance scale – generation and demand. On the generation side, emissions-free renewable generation resources such as wind and solar are replacing the pollution-emitting thermal power plants. On the demand side, energy sectors...

Open Data Based Model of the Dutch High-Voltage Power System

A numerical model of a power system can be used to get accurate insights into the impact of policies and investment decisions regarding the transformation of the energy system, while also helping in identifying bottlenecks in implementing decisions. Spatial aggregation, especially for generation and load, must be carefully approached to obtain...

Importance of Model Fidelity of Power to X Devices in Energy System Analysis

Power-to-X (PtX) technologies are accelerating the energy transition. Increasingly, these technologies are also being leveraged as flexible energy resources to support the electrical grid. PtX models are often represented using a constant efficiency term as a linear relation between the power input and energy output. However, the operational...

Simplifying multi-energy system co-simulations using ENERGYSIM

The traditional methodology for conducting technical assessments of multi-energy systems involved using domain-specific modeling tools to focus on the energy sector of interest, while making simplifying assumptions about any coupled energy sector. This was acceptable since the interactions between energy domains were minimal. However, with...

Quantification of Operational Flexibility from a Portfolio of Flexible Energy Resources

Flexibility will be required as more renewable generation is integrated in the power system. Therefore, entities such as Flexibility Service Providers (FSPs) have emerged who can control a diverse set of resources in their portfolio to provide requested flexibility. An accurate and reliable assessment of the amount of dispatchable flexibility in...

Optimal Tuning of Active Power Gradient Control for Frequency Support in Multi-Energy Systems

Coping with severe active power imbalances constitutes a challenging task in low inertia multi-energy systems. The phase out of the majority of conventional power plants with large size synchronous generators entails that power electronic interfaced devices should take over the primary task of active power balance-frequency control. In view of...

Technical Assessment of Large Scale PEM Electrolyzers as Flexibility Service Providers

To counter the inherent intermittent and unpre dictable power generation from large amounts of wind and solar, fast-acting resources are required, one of the options being sector coupling via power to gas devices. Industrial Power to Gas (IPtG) resources, such as an electrolyzer, represent an attractive solution to satisfy the rising energy...

A Key Performance Indicator to Assess the Frequency Stability of Wind Generation Dominated Power System

High penetration of power electronic interfaced generation, like wind power, has an essential impact on the inertia of the interconnected power system. It can pose a significant threat to the frequency stability. This paper introduces the notion of the key performance indicator (KPI) and illustrates its application on large scale power systems,...

Cossembler - Rapid Prototyping Tool for Energy System Co-simulations

Cossembler (co-simulation assembler) is a rapid prototyping tool for co-simulation. The tool is created to expedite the process of co-simulation development for power and energy system studies targeting user groups of power engineers, energy consultants and grid operators. Instead of focusing on message encoding, transportation and...

Modelica-Supported Attack Impact Evaluation in Cyber Physical Energy System

The evolved smart grid has become a cyber physical energy system that could be exposed to a massive amount of cyber threats. Vulnerabilities within the cyber part can be used to launch multiple types of attacks that corrupt the physical system. The complexity of cyber physical energy system, the existing of different kinds of attacks, require...

Energy flexibility analysis using FMUWorld

Energy flexibility is key to integrating more renewables into the grid. An essential contributor to enabling energy flexibility is P2X technologies such a Power2Heat, Power2Gas, among others. To evaluate the flexibility available from these resources and the impact they can have on the electrical grid, complex simulations need to be set up...

Using Cossembler for Rapid Prototyping of Co-simulations for Power System Operations

Improved modeling and simulation of power and energy systems has become increasingly important in the face of energy transition. The main challenge is to capture the complexity that heterogeneity of technologies and uncertainty of renewable resources bring along. One approach to improve simulation modeling capabilities, that relies on reusing...

Parameter Identififcation of Dynamic Equivalents Using Heuristic Optimization Techniques

This thesis introduces an approach for determining the parameters of aggregated dynamic equivalents for active distribution system from a reference set of signals associated with various disturbances using mean-variance mapping optimization (MVMO) algorithm. As the penetration of renewable energy sources in the LV and MV network increases, it...