Electrical system dynamics, control, and stability assessments for stable grid performance

The dynamic behaviour of modern power systems is changing as Inverter-Based Resources (IBR), HVDC and FACTS, and more variable power flows become more prevalent. Ensuring stable, well‑controlled system dynamics is now central to maintaining stable system behaviour, reliable grid access, and efficient use of network capacity.

The shift from fossil-based synchronous generation to converter‑based renewable resources means stability is increasingly shaped by control design, system strength, and device interactions. Operators and project teams are adopting advanced modelling and verification methods to demonstrate robust performance across a range of operating conditions and contingencies.

To demonstrate system stability, organizations must interpret diverse regional requirements, build accurate models, select appropriate study tools, and assess phenomena from frequency and voltage control to converter‑driven oscillations, all while keeping projects on schedule and aligned with operational goals.

About DNV’s electrical system dynamics, control, and stability services 

DNV's dynamics, control, and stability services offer a solution to these challenges. Our offerings include modelling, simulation, and detailed stability assessment of power grids and emerging devices such as IBR, HVDC, and FACTS devices. Our services include:

• Transient angular and voltage stability analysis
• Frequency stability analysis
• Islanding and system restoration/black-start studies
• Electromagnetic Transient (EMT) studies
• Simulation-based control interaction studies
• Control Hardware-in-the-Loop (CHiL) testing

Why DNV

DNV combines broad international experience with deep technical expertise to support customers working with increasingly complex grid stability challenges. Our independence and depth of expertise provide clients with the confidence that their projects are assessed against the highest standards of safety, quality, and environmental stewardship.