초록 ▼

In a steam and power cogeneration system optimization results for steam flow and power are calculated off-line recurrently based on actual demand and control is effected on a multiplane basis upon selection of a new plane of control defined by a new status and configuration of the system network, th

In a steam and power cogeneration system optimization results for steam flow and power are calculated off-line recurrently based on actual demand and control is effected on a multiplane basis upon selection of a new plane of control defined by a new status and configuration of the system network, the optimization results for such particular plane being selected and control performed at the time of plane change. Pressure reducing valves are positioned initially at the time of plane change in accordance with the optimization results for the new plane. Pressure reducing valves are positioned for flow tuning about such initial valve positioning.

대표청구항 ▼

In a steam and power cogeneration system including a network of fluid flow for passing a demand of steam therethrough at respective higher and lower pressures, embodying at least two steam-to-power converter units operatively connected between corresponding ones of said flow lines at different press

In a steam and power cogeneration system including a network of fluid flow for passing a demand of steam therethrough at respective higher and lower pressures, embodying at least two steam-to-power converter units operatively connected between corresponding ones of said flow lines at different pressures, and at least two pressure reducing valves operatively connected between corresponding ones of said flow lines at different pressures; the combination of: means for optimizing power generation by said steam-to-power converter units and for optimizing steam flow through said network in accordance with a predetermined concurrent steam and power demand; said optimizing means being operable in relation to a plurality of predetermined planes of control each defined by a given status and configuration of said network; means being provided responsive to a change of actual network status and configuration for selecting optimization by said optimizing means by reference to a new plane of control associated with the new and actual status and configuration of said network; means for controlling the distribution of steam through said network and concurrent generation of power in accordance with the optimizing results for said new plane of control.