Method for optimizing distribution of thermal power station load based on a plurality of restriction rules

Abstract

The invention relates to the energy saving technology field, in particular to a multi-constraint rule based thermal power plant load optimal allocation method which comprises the following steps of: 1) building a configurable input parameter table; 2) building a coal consumption characteristic curve; 3) performing the load tendency prediction; 4) guaranteeing the safety constraint rules; 5) implementing the rapid constraint rules; 6) optimizing the economy constraint rules; 7) implementing the dynamic programming method under multi-constraint rules. The invention mainly aims to the power plants provided with at least two thermal power generating units, assists in shift supervisors perform the load maximizing and adjusting, and has the advantages of reducing equipment consumption and coal consumption, and improving performing economy.

Description

technical field [0001] The invention relates to the technical field of energy saving, in particular to a thermal power plant plant-level load optimization distribution method based on multiple constraint rules. Background technique [0002] At present, thermal power generating units account for more than 70% of the country's total installed capacity and consume a huge amount of non-renewable coal resources. Therefore, in-depth research on energy saving and consumption reduction of thermal power generating units is of great significance to the sustainable development of the national economy. Plant-level load optimization distribution is an important measure for energy saving and consumption reduction. By optimizing the load distribution of the units in the whole plant, the cost of comprehensive power supply is minimized under the condition of meeting the load requirements of the power grid and the output constraints of the units. In addition, reasonable optimal load distribu...

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Problems solved by technology

However, their methods seldom consider the speed constraints of thermal power units and various economic constraint rules, see [2] Guo Bin, Kang Song. Research on real-time optimization automatic control system for load scheduling between units in thermal power plants. Power Generation Equipment, 2001 , 26(6): 26-30. [2], or only consider some economic constraint rules, without considering the rate constraints of variable loads, see [3] Shen Congqi, Guiyishu, Fang Jiong. Thermal Power Plant Whole Plant Load Research on optimal allocation and control methods. East China Electric Power, 2005, 33(3): 18-22.[3], resulting in low practical value of the method

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