Optimal distribution method and system for heat-engine plant plant-level loads

Abstract

The invention provides a distribution method and a system for heat-engine plant plant-level loads, wherein the method comprises the steps of obtaining load limit and load energy consumption properties of each generating set in multiple generating sets, according to the obtained load limit and the load energy consumption properties of each generating set and a planned total load value, calculating a load distribution plan, and according to the obtained load distribution plan, distributing loads for each generating set so as to meet the facts that the obtained loads distributed for each generating set is within the load limit of each generating set, the sum of the obtained loads of the multiple generating sets is equal to the plan total load value, and obtained total energy consumption of the multiple generating sets is the lowest. According to the technical scheme, optimization and load distribution of the plant-level generating sets can be automatically and reasonably conducted according to the load energy consumption properties, adjustment rates, load adjustment limits and operation conditions of the generating sets, and therefore the total energy consumption of the whole plant is enabled to be the lowest under the premise that the plan total load value is met.

Description

technical field [0001] The invention relates to the field of thermal power generation, in particular to a method and system for optimal load distribution at the plant level of a thermal power plant. Background technique [0002] The fossil energy used in thermal power generation is non-renewable energy. How to effectively utilize fossil energy (such as coal) in thermal power generation is a problem that needs to be solved worldwide. At present, the electric energy used in domestic production and life in my country mainly comes from (using coal) thermal power generation. Therefore, how to save energy and reduce emissions and effectively use limited coal resources is also the top priority for my country to achieve sustainable development. [0003] The prior art provides a scheme for arranging power generation plans according to the actual energy consumption level of thermal power units. In this scheme, the automatic generation control (Automatic Generation Control, AGC) dire...

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Problems solved by technology

The AGC direct regulation method has played a positive and effective role in promoting the safe and stable operation of the power grid, but because this method distributes the load evenly to each unit without taking into account the differences between the units, the effect of energy saving is not effective. obvious

[0004] Therefore, there is no good solution in the prior art for how to effectively save energy consumption under the premise of completing the plant-level power generation load

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