A Coordinated Planning Method for Multi-Regional and Multiple Power Sources

Abstract

The invention discloses a multi-region multi-power-source coordinated planning method in the technical field of power source planning of power systems. The method comprises the steps that a region to be planned is divided into a plurality of sub-regions, and the sub-regions are mutually connected through transmission lines; the capacity of each power generation technological type of each sub-region is solved according to a coarse-grained multi-region multi-power-source coordinated planning mathematic model; solving results of the coarse-grained multi-region multi-power-source coordinated planning mathematic model are read and independent planning sub-regions are formed; each planning sub-region is divided into a plurality of grids; the power generation technological type, the capacity and the construction site of each power station are solved according to a fine-grained multi-power-source coordinated planning model; if the grids do not meet the resolution ratio requirement, each grid is further divided into a plurality of smaller grids, and solving is conducted again according to the fine-grained multi-power-source coordinated planning model. The multi-region multi-power-source coordinated planning method realizes automated, fine and optimal making of a multi-power-source coordinated planning scheme under complex geographical environment.

Description

technical field [0001] The invention belongs to the technical field of electric power system power supply planning, and in particular relates to a method for coordinated planning of multi-area multi-element power sources. Background technique [0002] Power supply planning is based on long-term load forecasting to decide when, where, and what type of technical power generation equipment to invest in, so as to meet the demand of load growth on the premise of ensuring the reliability of power system operation within the planning period. In recent years, global climate change and global warming have drawn increasing public attention to environmental protection. More and more countries have begun to devote themselves to saving fossil energy consumption and reducing greenhouse gas emissions. Benefiting from the development of renewable energy power generation technology, the shortage of fossil energy and the incentives of government policies, renewable energy power generation ha...

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Problems solved by technology

[0005] The purpose of the present invention is to propose a coarse-grained and fine-grained method in view of the new situation of the current rapid development of renewable energy power generation and the characteristics that renewable energy power generation is closely related to the environment, as well as the complementary characteristics of inter-regional resources and the constraints of the power grid network. Combined with the multi-region multi-element power coordination planning method that accurately considers complex geographical environment factors, while realizing the optimal allocation of power resources in a wide range, it also makes full use of the rich environmental information and powerful map processing capabilities in the existing geographic information system to achieve The automation, refinement and optimization of multiple power supply coordination planning schemes in complex geographical environments, as well as the visual display of optimal planning schemes, solve the problem of too many assumptions in current power supply planning methods, the mismatch between planning schemes and actual construction projects, and Manually compiling the power supply planning scheme is ineffective and inefficient

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