Method for controlling a compressor room and an apparatus thereof
AssigneesAtlas Copco Airpower, Naamloze Vennootschap, Katholieke Universiteit Leuven
InventorsWim Van Roy, Ebrahim Louarroudi, Philippe Geuens
Life of this patent
Estimating the term…
Abstract
A method for controlling a compressed air or gas system is disclosed including the steps of estimating a current state, predicting a future process variable profile based on the current state, sampling the future process variable profile by a sampling method having sampling frequencies based on a volume of the compressed air or gas system, transforming by a model predictive control, MPC, method the sampled future process variable profile and the current state into an action profile and a state profile, and instructing the compressors to perform the actions in accordance with the action profile thereby controlling the compressed air or gas system.
Claims14
A computer-implemented method for controlling a compressed air or gas system comprising one or more compressors configured to provide compressed air or gas to one or more consumers, the compressed air or gas defined by one or more process variables, the method comprising a plurality of steps of:
- measuring at least one of said one or more process variables and inputting the measurement to a master controller, wherein the master controller:
- estimates a current state of the compressed air or gas system based on said one or more measured process variables;
- predicts a future process variable profile based on the current state;
- samples the future process variable profile by a sampling method having a sampling frequency based on a volume of the compressed air or gas system, thereby obtaining a sampled future process variable profile;
- transforms, by a model predictive control (MPC) method, the sampled future process variable profile and the current state into:
- an action profile comprising one or more actions distributed over a predefined first time-horizon;
- and
- a state profile distributed over a predefined second time-horizon being equal or greater than the predefined first time-horizon;
- and
- outputting instructions to said compressed air or gas system to perform the one or more actions in accordance with the action profile;
- and
- causing the compressed air or gas system to perform the one or more actions to adjust said one or more measured process variables to control a flow of said compressed air or gas from the compressed air or gas system to a client network.
Dependencies are inferred from the claim text.