Heat and power cogeneration dynamic economical scheduling method and device thereof

Abstract

The invention discloses a heat and power cogeneration dynamic economical scheduling method and a device thereof. The method comprises the steps of creating an initial population of a crisscross optimization algorithm according to a preset constrained condition; calculating a fitness function and using the initial population as a parent population; performing a cross operation on the parent population; performing a longitudinal operation on the parent population after the cross operation; calculating the fitness function on the parent population after crisscross updating; and if the number of iterations which correspond with the parent population reaches a preset number, outputting the optimal fitness function which corresponds with the parent population and a scheduling solution that corresponds with the optimal fitness function. According to the method and the device, the crisscross optimization algorithm is applied in heat and power cogeneration dynamic economical scheduling, and a strong constraining optimization problem is settled through the crisscross optimization algorithm, thereby realizing a scheduling effect with relatively high economical performance, and improving solving efficiency and accuracy. Furthermore through using a rotation standby requirement in a preset constrained condition, an error and an accidental electric load offset in maximal power generation output are compensated.

Description

technical field [0001] The invention relates to the technical field of cogeneration of heat and power, in particular to a method and device for dynamic economic scheduling of cogeneration of heat and power. Background technique [0002] With the aggravation of environmental pollution and the improvement of people's awareness of environmental protection, Combined Heat and Power (CHP) units have been vigorously developed due to their good economic and environmental benefits. A CHP unit can simultaneously generate heat and electricity from a single fuel source, so it can provide both heat and electricity required by customers. In the CHP system, through cascaded utilization of energy, the fuel efficiency can be significantly increased to 90%, and then under the same power generation, the cost of power generation will be effectively reduced by 10%-40%, and the emission of environmental pollutants will also be reduced by 13% %-18%. [0003] In the prior art, since the conventio...

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Problems solved by technology

[0003] In the existing technology, because the conventional economic dispatch (Economic Dispatch, ED) often does not consider the actual constraints of the CHP unit, it cannot meet the needs of the system including the CHP unit

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