Optimal control in a micro gas grid of prosumers using Model Predictive Control

This paper studies the optimal control of a micro grid of biogas prosumers equipped with local storage devices. Excess biogas can be upgraded and injected into the low- pressure gas grid or, alternatively, shipped per lorry to be used elsewhere in an effort to create revenue. The aim of the control process is to maximize the prosumers’ profit from the biogas they produce, with a size restriction on the local biogas storage. The problem is solved in centralized and distributed MPC schemes in order to compare their capabilities to control a micro grid. We perform simulations with a realistic average gas usage pattern over a year to study the economic feasibility of local biogas storage.