US 5,467,265 A · Plant operation method and plant operation control system

Abstract

A system for determining a cost effective and practical operation method for thermal source equipments includes a fundamental plan data storage unit, a fundamental plan generating unit for determining a fundamental operation plan of each equipment while minimizing an operation cost by linear programming, an operation knowledge storage unit for storing operation knowledge such as equipment performance characteristics and operation know-how, a fundamental plan evaluating unit for evaluating the fundamental plan, a modifying rule storage unit for storing modifying rules used for modifying the evaluated fundamental plan, and a fundamental plan modifying unit for modifying the fundamental plan in accordance with the modifying rules.

Claims16

Dependent claims

A plant operation system comprising:

input/output data storage means for storing input/output data of each equipment of a plant having a plurality of different type equipments;
fundamental operation plan generating means for generating a fundamental operation plan by reading said input/output data of each said equipment stored in said input/output data storage means and formulating said read input/output data, and by obtaining an input to each said equipment for each operation time period by using an optimal planning method, said input satisfying a target output of said plant;
rule storage means for storing knowledge rules regarding at least one of a life time and response characteristic of each said equipment;
means for evaluating said fundamental operation plan generated by said fundamental operation generating means by using said knowledge rules;
means for storing modifying rules for modifying a start/stop schedule and a load factor of each said equipment;
and
means for modifying said fundamental operation plan by using said modifying rules.

4 more elements

A thermal source equipment operation determining method of determining a start/stop schedule and a running load factor of an energy supply plant having a plurality of different type thermal source equipments, comprising the steps of:

formulating a relationship between input and output of each said thermal source equipment and the restrictive conditions of upper and lower bounds of said input and output, and generating said start/stop schedule and said running load factor of each said thermal source equipment by a linear planning method, said start/stop schedule and said running load factor satisfying a target output of said plant and minimizing an energy consumption cost of each said thermal source equipment and/or an exhaust amount of toxic gas to air;
and
modifying said start/stop schedule and said running load factor of each said thermal source equipment, by using knowledge rules regarding a life time and an output response characteristic of each said thermal source equipment.

A thermal source equipment operation determining system of determining a start/stop schedule and a running load factor for a plurality of different type thermal source equipments, comprising:

means for formulating a relationship between input and output of each said thermal source equipment and the restrictive conditions of upper and lower bounds of said input or output, and generating said start/stop schedule and said running load factor of each said thermal source equipment by a linear planning method, said start/stop schedule and said running load factor minimizing an energy consumption cost of each said thermal source equipment;
operation rule storage means for storing knowledge rules regarding a life time and output response characteristic of each said thermal source equipment;
fundamental operation plan evaluating means for evaluating optimization of said fundamental operation plan by using said knowledge rules stored in said operation rule storage means;
modifying rule storage means for storing modifying rules for modifying said start/stop schedule and said running load factor of each said thermal source equipment in accordance with said fundamental operation plan evaluation results;
and
means for modifying said fundamental operation plan in accordance with said modifying rules.

3 more elements

Dependencies are inferred from the claim text.

Plant operation method and plant operation control system

Life of this patent

Plant operation method and plant operation control system

Life of this patent

Abstract

Claims16