Method and system for controlling a fluid pressure in a fluid system

A method of controlling operation of a pump to control a fluid pressure in a fluid system, in particular in a fluid-based energy distribution system, the fluid system comprising a supply grid of supply lines for transporting fluid from at least one distribution source to respective recipients, a return grid of return lines for returning fluid from the respective recipients to the distribution source, and a pump for pumping fluid through a supply line of the supply grid, wherein the method comprises the steps of:

• receiving local sensor data indicative of a local differential pressure between a local supply line measurement location along a supply line of the supply grid and a local return line measurement location along a return line of the return grid;
• receiving primary remote sensor data indicative of a remote differential pressure between a primary remote supply line measurement location along a supply line of the supply grid and a primary remote return line measurement location along a return line of the return grid, wherein the primary remote supply line measurement location is further displaced along the supply line downstream from the pump than the local supply line measurement location;
• controlling operation of the pump based on at least the received local sensor data, the received primary remote sensor data and on a local pressure set point;
• responding to a detected failure to receive the primary remote sensor data at least by modifying the local pressure set point and by controlling operation of the pump based on at least the received local sensor data and the modified local pressure set point.