Power system power generation structure optimization and task allocation method and system

Abstract

The invention relates to the field of power system optimization, and particularly discloses a power system power generation structure optimization and task allocation method and system. The method comprises the following steps: analyzing related virtual water consumption and carbon emission in a power generation process by using a life cycle evaluation method; obtaining related virtual water coefficients and carbon emission coefficients of different power generation types; calculating a specific water pressure index value of each province, and dividing water crisis levels of each province; under existing conditions, through adjustment and allocation of a power generation structure and a power generation task, relieving regional water pressure to the maximum extent from a power system, andreducing carbon emission related to power generation; converting the target into a mathematical expression, and constructing a multi-target optimization model; and obtaining the optimized power generation capacity of different power generation forms of each province, and the corresponding virtual water consumption and carbon emission. According to the method, the actual installed capacity, the number of hours used by each power generation device and the power transmission level are considered, and power production and planning are more environmentally friendly and optimized under the existingconditions.

Description

technical field [0001] The present invention relates to the fields of power system optimization and environmental water-energy-carbon coupling, and more specifically, relates to a method and system for power system power generation structure optimization and task allocation. Background technique [0002] In my country, the problem of water shortage is prominent, and the water crisis is embodied in the fact that the total amount of water resources is large, but the per capita share is less than a quarter of the world's average level. In the process of water production and utilization, the mechanical operation involved in each link from acquisition, treatment, transportation to consumption and wastewater treatment requires electric power. The power sector is the second largest water user after the agricultural sector, accounting for 14% of the country's total water consumption. Whether it is thermal power or nuclear power, a large amount of water resources are needed in the p...

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Problems solved by technology

[0004] The present invention proposes a power system power generation structure optimization and task allocation method and system, so as to overcome the shortcomings that only hydropower coupling or carbon-electricity coupling is considered separately in the power sector, and it is not comprehensive enough for power systems with water and carbon problems at the same time

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