Design of Grid Forming Multi Timescale Coordinated Control Strategies for Dynamic Virtual Power Plants

A research team has published a paper proposing a novel 'Dynamic Virtual Power Plant' (DVPP) framework designed to solve a critical challenge in modern power grids: maintaining stability as traditional fossil-fuel plants are replaced by variable renewable energy. The paper, 'Design of Grid Forming Multi Timescale Coordinated Control Strategies for Dynamic Virtual Power Plants' by Yan Tong and four co-authors, addresses the instability caused by the decline of synchronous machines that traditionally provide frequency and voltage support. The core innovation is moving beyond today's static Virtual Power Plants, which treat aggregated resources as a single, slow-responding unit, to a dynamic system that intelligently coordinates heterogeneous assets—like solar inverters, battery storage, and wind turbines—based on their unique physical response capabilities.

Technically, the DVPP employs grid-forming control at the aggregate level, mimicking a virtual synchronous generator to provide essential inertia and damping to the grid. Its key mechanism is a dynamic participation factor framework and a 'banded allocation' strategy. This strategy explicitly assigns roles based on device speed: slow resources manage steady-state power, intermediate ones smooth transitions, and fast resources (like batteries) deliver rapid, high-frequency responses for damping oscillations. Comparative simulations demonstrate this multi-timescale coordination enhances stability and ancillary service performance over conventional methods, offering a crucial software-based solution for integrating more renewables without compromising grid reliability.