Method for controlling a multivalent energy supply installation

A method of controlling a multivalent energy supply system, wherein the energy supply system comprises at least:

• at least two energy generators (E1-E5, B1, B2, G1, G2, H1, H2, O1, O2, W1) which use at least two different energy carriers to provide at least two energy forms selected from the group consisting of heat, cold and electrical energy;
• for each energy generator, a closed-loop controller (R1-R5) for controlling controlled variables of the energy generator (E1-E5, B1, B2, G1, G2, H1, H2, O1, O2, W1);
• and
• wherein each energy generator (E1-E5, B1, B2, G1, G2, H1, H2, O1, O2, W1) can assume three possible switching states:
• the energy generator (E1-E5, B1, B2, G1, G2, H1, H2, O1, O2, W1) must be switched on, the energy generator (E1-E5, B1, B2, G1, G2, H1, H2, O1, O2, W1) must be switched off, the energy generator (E1-E5, B1, B2, G1, G2, H1, H2, O1, O2, W1) may be switched on or off;
• a control device (S) for coordinatedly controlling the closed-loop controllers (R1-R5), wherein the control device (S) carries out the following method steps:
• detecting at least one energy supply request (EA) for at least two energy forms selected from the group consisting of heat, cold and electrical energy;
• for each of the energy generators (E1-E5, B1, B2, G1, G2, H1, H2, O1, O2, W1), determining whether there is an energy generator specific criterion (EEK) which specifies exactly one of the three possible switching states for the energy generator (E1-E5, B1, B2, G1, G2, H1, H2, O1, O2, W1);
• determining whether there is more than one energy supply request (EA) for an energy generator (E1-E5, B1, B2, G1, G2, H1, H2, O1, O2, W1);
• if there is more than one energy supply request (EA) for an energy generator (E1-E5, B1, B2, G1, G2, H1, H2, O1, O2, W1):
• determining which of the energy supply requests (EA) should be treated as a priority;
• for each energy generator (E1-E5, B1, B2, G1, G2, H1, H2, O1, O2, W1), determining target values (SW) for meeting the at least one energy supply request (EA) based on the energy supply request which is treated as a priority (EA) and the energy generator specific criterion (EEK);
• and
• outputting the target values (SW) to the closed-loop controllers (R1-R5).