ENHANCED METHOD FOR CONTROLLING A PUMPING STATION WITHIN A FLUID CIRCULATION SYSTEM, RELATED CIRCULATION SYSTEM AND PUMPING STATION FOR REALIZING SAID METHOD

摘要

Method for automatically controlling a pumping station of a fluid circulation system with flowrate control valves, comprising the following control steps which are cyclically repeated: (b) driving said pumping station in accordance with a set curve belonging to a group of predefined driving curves; (c) monitoring over time the variation in flowrate of fluid circulating in the system at the pumping station, or a parameter related thereto; (d) if, during the monitoring step (c), the variation in flowrate exceeds or falls below a control threshold and if said condition is maintained for a stabilization time, (e) modifying the set driving curve, replacing it with another curve from the plurality of driving curves; and (f) reinitializing the monitoring step (c) from a new working point reached by the pumping station.

主权项

1. A method for automatically controlling a pumping station of a fluid circulation system provided with one or more flowrate control valves, comprising the following preliminary step:
predefining a plurality of driving curves which define the relationship between head and flowrate of the pumping station; and the following adaptive control steps which are cyclically repeated: driving said pumping station in accordance with a set curve chosen from among the predefined driving curves; monitoring over time the variation in flowrate of fluid circulating within the system at the pumping station, or a parameter related thereto; checking whether, during the monitoring step, the variation in flowrate exceeds or falls below a control threshold and whether said condition is maintained for a stabilization time, identifying in this case an increased flowrate condition or reduced flowrate condition, respectively; if, during this latter check step, an increased flowrate condition or reduced flowrate condition is identified, modifying the set driving curve, replacing it with another curve from the plurality of driving curves; when the step of modifying the set driving curve is performed, reinitializing the monitoring step from a new working point reached by the pumping station.