Layered Decomposition

A formally established mathematical technique employed in many technology sectors to solve Ultra Large-scale (ULS) optimisation problems characterised by highly coupled constraints.

In the case of Power Systems transitioning from hundreds to tens of millions of participating Energy Resources, and experiencing growing levels of operational Volatility, Layered Decomposition provides an empirical basis for solving a range of critical Architectural Issues, including otherwise intractable Operational Coordination problems.

In contrast with more traditional hierarchical control, it enables highly complex problems to be decomposed multiple times into sub-problems, which then work in combination to solve the original problem in a manner that addresses long-term Scalability, Extensibility, Cyber-security and Resilience issues. Importantly, rather than ‘competing’ with other Architecture models currently or proposed for use in the power sector, Layered Decomposition provides a universal, canonical structure for unifying alternative models.

Given the fast-evolving nature of power system transformation, the Future Grid Accelerator (FGA) has the status of a perpetual BETA version. Your suggestions for how each concept and definition may be enhanced are very welcome.

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