Optimising electricity reserves to ensure system stability and frequency quality in T&D networks

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TSOs must increasingly operate their systems close to the technical limits defined in the network code. This makes power system stability more critical than ever, as any violation of the stability limits can cause blackouts. DNV’s stability and controllability assessment services help TSOs (re)assess their technical limits, including stability limits, to ensure operational stability and the safe exchange, sharing and cross-border activation of reserves.

Whether you’re implementing new infrastructure, maintaining/upgrading existing services or investigating power failures, our stability and controllability assessments are an invaluable tool.

A proven partner
DNV has a strong track record in power system analysis. And over the years, we have built up a versatile set of analysis tools including PSS/E, PowerFactory and KERMIT. This blend of tools and experience allows us to model extended and advanced power systems such as HV AC/DC networks including converters, FACT devices, wind farms and photovoltaic power plants. From this, we can study and assess all aspects of power stability including rotor angle, voltage and frequency stability.

What’s more, our consultants have an in-depth understanding of the institutional, legal and technical issues related to electricity markets and power infrastructures. So you can be sure of a solution that meets your needs and the regulatory requirements.

Range of services

• Developing / assessing frameworks to determine stability limits
• Developing scenarios for assessing stability limits including sensitivity analyses
• Power system modelling and simulations
• Operational risk and security analysis
• Power system stability workshops for planning / scheduling staff and system operators

Our stability and controllability assessments are just part of an extensive portfolio of services related to electricity balancing  and  load-frequency control and reserves.